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      1 /**************************************************************************
      2  *
      3  * Copyright 2011 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 <sys/types.h>
     35 #include <assert.h>
     36 #include <errno.h>
     37 #include <unistd.h>
     38 #include <stdio.h>
     39 
     40 #include "pipe/p_video_codec.h"
     41 
     42 #include "util/u_memory.h"
     43 #include "util/u_video.h"
     44 
     45 #include "vl/vl_defines.h"
     46 #include "vl/vl_mpeg12_decoder.h"
     47 
     48 #include "r600_pipe_common.h"
     49 #include "radeon_video.h"
     50 #include "radeon_uvd.h"
     51 
     52 #define NUM_BUFFERS 4
     53 
     54 #define NUM_MPEG2_REFS 6
     55 #define NUM_H264_REFS 17
     56 #define NUM_VC1_REFS 5
     57 
     58 #define FB_BUFFER_OFFSET 0x1000
     59 #define FB_BUFFER_SIZE 2048
     60 #define FB_BUFFER_SIZE_TONGA (2048 * 64)
     61 #define IT_SCALING_TABLE_SIZE 992
     62 #define UVD_SESSION_CONTEXT_SIZE (128 * 1024)
     63 
     64 /* UVD decoder representation */
     65 struct ruvd_decoder {
     66 	struct pipe_video_codec		base;
     67 
     68 	ruvd_set_dtb			set_dtb;
     69 
     70 	unsigned			stream_handle;
     71 	unsigned			stream_type;
     72 	unsigned			frame_number;
     73 
     74 	struct pipe_screen		*screen;
     75 	struct radeon_winsys*		ws;
     76 	struct radeon_winsys_cs*	cs;
     77 
     78 	unsigned			cur_buffer;
     79 
     80 	struct rvid_buffer		msg_fb_it_buffers[NUM_BUFFERS];
     81 	struct ruvd_msg			*msg;
     82 	uint32_t			*fb;
     83 	unsigned			fb_size;
     84 	uint8_t				*it;
     85 
     86 	struct rvid_buffer		bs_buffers[NUM_BUFFERS];
     87 	void*				bs_ptr;
     88 	unsigned			bs_size;
     89 
     90 	struct rvid_buffer		dpb;
     91 	bool				use_legacy;
     92 	struct rvid_buffer		ctx;
     93 	struct rvid_buffer		sessionctx;
     94 };
     95 
     96 /* flush IB to the hardware */
     97 static int flush(struct ruvd_decoder *dec, unsigned flags)
     98 {
     99 	return dec->ws->cs_flush(dec->cs, flags, NULL);
    100 }
    101 
    102 /* add a new set register command to the IB */
    103 static void set_reg(struct ruvd_decoder *dec, unsigned reg, uint32_t val)
    104 {
    105 	radeon_emit(dec->cs, RUVD_PKT0(reg >> 2, 0));
    106 	radeon_emit(dec->cs, val);
    107 }
    108 
    109 /* send a command to the VCPU through the GPCOM registers */
    110 static void send_cmd(struct ruvd_decoder *dec, unsigned cmd,
    111 		     struct pb_buffer* buf, uint32_t off,
    112 		     enum radeon_bo_usage usage, enum radeon_bo_domain domain)
    113 {
    114 	int reloc_idx;
    115 
    116 	reloc_idx = dec->ws->cs_add_buffer(dec->cs, buf, usage | RADEON_USAGE_SYNCHRONIZED,
    117 					   domain,
    118 					  RADEON_PRIO_UVD);
    119 	if (!dec->use_legacy) {
    120 		uint64_t addr;
    121 		addr = dec->ws->buffer_get_virtual_address(buf);
    122 		addr = addr + off;
    123 		set_reg(dec, RUVD_GPCOM_VCPU_DATA0, addr);
    124 		set_reg(dec, RUVD_GPCOM_VCPU_DATA1, addr >> 32);
    125 	} else {
    126 		off += dec->ws->buffer_get_reloc_offset(buf);
    127 		set_reg(dec, RUVD_GPCOM_VCPU_DATA0, off);
    128 		set_reg(dec, RUVD_GPCOM_VCPU_DATA1, reloc_idx * 4);
    129 	}
    130 	set_reg(dec, RUVD_GPCOM_VCPU_CMD, cmd << 1);
    131 }
    132 
    133 /* do the codec needs an IT buffer ?*/
    134 static bool have_it(struct ruvd_decoder *dec)
    135 {
    136 	return dec->stream_type == RUVD_CODEC_H264_PERF ||
    137 		dec->stream_type == RUVD_CODEC_H265;
    138 }
    139 
    140 /* map the next available message/feedback/itscaling buffer */
    141 static void map_msg_fb_it_buf(struct ruvd_decoder *dec)
    142 {
    143 	struct rvid_buffer* buf;
    144 	uint8_t *ptr;
    145 
    146 	/* grab the current message/feedback buffer */
    147 	buf = &dec->msg_fb_it_buffers[dec->cur_buffer];
    148 
    149 	/* and map it for CPU access */
    150 	ptr = dec->ws->buffer_map(buf->res->buf, dec->cs, PIPE_TRANSFER_WRITE);
    151 
    152 	/* calc buffer offsets */
    153 	dec->msg = (struct ruvd_msg *)ptr;
    154 	dec->fb = (uint32_t *)(ptr + FB_BUFFER_OFFSET);
    155 	if (have_it(dec))
    156 		dec->it = (uint8_t *)(ptr + FB_BUFFER_OFFSET + dec->fb_size);
    157 }
    158 
    159 /* unmap and send a message command to the VCPU */
    160 static void send_msg_buf(struct ruvd_decoder *dec)
    161 {
    162 	struct rvid_buffer* buf;
    163 
    164 	/* ignore the request if message/feedback buffer isn't mapped */
    165 	if (!dec->msg || !dec->fb)
    166 		return;
    167 
    168 	/* grab the current message buffer */
    169 	buf = &dec->msg_fb_it_buffers[dec->cur_buffer];
    170 
    171 	/* unmap the buffer */
    172 	dec->ws->buffer_unmap(buf->res->buf);
    173 	dec->msg = NULL;
    174 	dec->fb = NULL;
    175 	dec->it = NULL;
    176 
    177 
    178 	if (dec->sessionctx.res)
    179 		send_cmd(dec, RUVD_CMD_SESSION_CONTEXT_BUFFER,
    180 			 dec->sessionctx.res->buf, 0, RADEON_USAGE_READWRITE,
    181 			 RADEON_DOMAIN_VRAM);
    182 
    183 	/* and send it to the hardware */
    184 	send_cmd(dec, RUVD_CMD_MSG_BUFFER, buf->res->buf, 0,
    185 		 RADEON_USAGE_READ, RADEON_DOMAIN_GTT);
    186 }
    187 
    188 /* cycle to the next set of buffers */
    189 static void next_buffer(struct ruvd_decoder *dec)
    190 {
    191 	++dec->cur_buffer;
    192 	dec->cur_buffer %= NUM_BUFFERS;
    193 }
    194 
    195 /* convert the profile into something UVD understands */
    196 static uint32_t profile2stream_type(struct ruvd_decoder *dec, unsigned family)
    197 {
    198 	switch (u_reduce_video_profile(dec->base.profile)) {
    199 	case PIPE_VIDEO_FORMAT_MPEG4_AVC:
    200 		return (family >= CHIP_TONGA) ?
    201 			RUVD_CODEC_H264_PERF : RUVD_CODEC_H264;
    202 
    203 	case PIPE_VIDEO_FORMAT_VC1:
    204 		return RUVD_CODEC_VC1;
    205 
    206 	case PIPE_VIDEO_FORMAT_MPEG12:
    207 		return RUVD_CODEC_MPEG2;
    208 
    209 	case PIPE_VIDEO_FORMAT_MPEG4:
    210 		return RUVD_CODEC_MPEG4;
    211 
    212 	case PIPE_VIDEO_FORMAT_HEVC:
    213 		return RUVD_CODEC_H265;
    214 
    215 	default:
    216 		assert(0);
    217 		return 0;
    218 	}
    219 }
    220 
    221 static unsigned calc_ctx_size_h264_perf(struct ruvd_decoder *dec)
    222 {
    223 	unsigned width_in_mb, height_in_mb, ctx_size;
    224 	unsigned width = align(dec->base.width, VL_MACROBLOCK_WIDTH);
    225 	unsigned height = align(dec->base.height, VL_MACROBLOCK_HEIGHT);
    226 
    227 	unsigned max_references = dec->base.max_references + 1;
    228 
    229 	// picture width & height in 16 pixel units
    230 	width_in_mb = width / VL_MACROBLOCK_WIDTH;
    231 	height_in_mb = align(height / VL_MACROBLOCK_HEIGHT, 2);
    232 
    233 	if (!dec->use_legacy) {
    234 		unsigned fs_in_mb = width_in_mb * height_in_mb;
    235 		unsigned num_dpb_buffer;
    236 		switch(dec->base.level) {
    237 		case 30:
    238 			num_dpb_buffer = 8100 / fs_in_mb;
    239 			break;
    240 		case 31:
    241 			num_dpb_buffer = 18000 / fs_in_mb;
    242 			break;
    243 		case 32:
    244 			num_dpb_buffer = 20480 / fs_in_mb;
    245 			break;
    246 		case 41:
    247 			num_dpb_buffer = 32768 / fs_in_mb;
    248 			break;
    249 		case 42:
    250 			num_dpb_buffer = 34816 / fs_in_mb;
    251 			break;
    252 		case 50:
    253 			num_dpb_buffer = 110400 / fs_in_mb;
    254 			break;
    255 		case 51:
    256 			num_dpb_buffer = 184320 / fs_in_mb;
    257 			break;
    258 		default:
    259 			num_dpb_buffer = 184320 / fs_in_mb;
    260 			break;
    261 		}
    262 		num_dpb_buffer++;
    263 		max_references = MAX2(MIN2(NUM_H264_REFS, num_dpb_buffer), max_references);
    264 		ctx_size = max_references * align(width_in_mb * height_in_mb  * 192, 256);
    265 	} else {
    266 		// the firmware seems to always assume a minimum of ref frames
    267 		max_references = MAX2(NUM_H264_REFS, max_references);
    268 		// macroblock context buffer
    269 		ctx_size = align(width_in_mb * height_in_mb * max_references * 192, 256);
    270 	}
    271 
    272 	return ctx_size;
    273 }
    274 
    275 static unsigned calc_ctx_size_h265_main(struct ruvd_decoder *dec)
    276 {
    277 	unsigned width = align(dec->base.width, VL_MACROBLOCK_WIDTH);
    278 	unsigned height = align(dec->base.height, VL_MACROBLOCK_HEIGHT);
    279 
    280 	unsigned max_references = dec->base.max_references + 1;
    281 
    282 	if (dec->base.width * dec->base.height >= 4096*2000)
    283 		max_references = MAX2(max_references, 8);
    284 	else
    285 		max_references = MAX2(max_references, 17);
    286 
    287 	width = align (width, 16);
    288 	height = align (height, 16);
    289 	return ((width + 255) / 16) * ((height + 255) / 16) * 16 * max_references + 52 * 1024;
    290 }
    291 
    292 static unsigned calc_ctx_size_h265_main10(struct ruvd_decoder *dec, struct pipe_h265_picture_desc *pic)
    293 {
    294 	unsigned block_size, log2_ctb_size, width_in_ctb, height_in_ctb, num_16x16_block_per_ctb;
    295 	unsigned context_buffer_size_per_ctb_row, cm_buffer_size, max_mb_address, db_left_tile_pxl_size;
    296 	unsigned db_left_tile_ctx_size = 4096 / 16 * (32 + 16 * 4);
    297 
    298 	unsigned width = align(dec->base.width, VL_MACROBLOCK_WIDTH);
    299 	unsigned height = align(dec->base.height, VL_MACROBLOCK_HEIGHT);
    300 	unsigned coeff_10bit = (pic->pps->sps->bit_depth_luma_minus8 || pic->pps->sps->bit_depth_chroma_minus8) ? 2 : 1;
    301 
    302 	unsigned max_references = dec->base.max_references + 1;
    303 
    304 	if (dec->base.width * dec->base.height >= 4096*2000)
    305 		max_references = MAX2(max_references, 8);
    306 	else
    307 		max_references = MAX2(max_references, 17);
    308 
    309 	block_size = (1 << (pic->pps->sps->log2_min_luma_coding_block_size_minus3 + 3));
    310 	log2_ctb_size = block_size + pic->pps->sps->log2_diff_max_min_luma_coding_block_size;
    311 
    312 	width_in_ctb = (width + ((1 << log2_ctb_size) - 1)) >> log2_ctb_size;
    313 	height_in_ctb = (height + ((1 << log2_ctb_size) - 1)) >> log2_ctb_size;
    314 
    315 	num_16x16_block_per_ctb = ((1 << log2_ctb_size) >> 4) * ((1 << log2_ctb_size) >> 4);
    316 	context_buffer_size_per_ctb_row = align(width_in_ctb * num_16x16_block_per_ctb * 16, 256);
    317 	max_mb_address = (unsigned) ceil(height * 8 / 2048.0);
    318 
    319 	cm_buffer_size = max_references * context_buffer_size_per_ctb_row * height_in_ctb;
    320 	db_left_tile_pxl_size = coeff_10bit * (max_mb_address * 2 * 2048 + 1024);
    321 
    322 	return cm_buffer_size + db_left_tile_ctx_size + db_left_tile_pxl_size;
    323 }
    324 
    325 /* calculate size of reference picture buffer */
    326 static unsigned calc_dpb_size(struct ruvd_decoder *dec)
    327 {
    328 	unsigned width_in_mb, height_in_mb, image_size, dpb_size;
    329 
    330 	// always align them to MB size for dpb calculation
    331 	unsigned width = align(dec->base.width, VL_MACROBLOCK_WIDTH);
    332 	unsigned height = align(dec->base.height, VL_MACROBLOCK_HEIGHT);
    333 
    334 	// always one more for currently decoded picture
    335 	unsigned max_references = dec->base.max_references + 1;
    336 
    337 	// aligned size of a single frame
    338 	image_size = width * height;
    339 	image_size += image_size / 2;
    340 	image_size = align(image_size, 1024);
    341 
    342 	// picture width & height in 16 pixel units
    343 	width_in_mb = width / VL_MACROBLOCK_WIDTH;
    344 	height_in_mb = align(height / VL_MACROBLOCK_HEIGHT, 2);
    345 
    346 	switch (u_reduce_video_profile(dec->base.profile)) {
    347 	case PIPE_VIDEO_FORMAT_MPEG4_AVC: {
    348 		if (!dec->use_legacy) {
    349 			unsigned fs_in_mb = width_in_mb * height_in_mb;
    350 			unsigned alignment = 64, num_dpb_buffer;
    351 
    352 			if (dec->stream_type == RUVD_CODEC_H264_PERF)
    353 				alignment = 256;
    354 			switch(dec->base.level) {
    355 			case 30:
    356 				num_dpb_buffer = 8100 / fs_in_mb;
    357 				break;
    358 			case 31:
    359 				num_dpb_buffer = 18000 / fs_in_mb;
    360 				break;
    361 			case 32:
    362 				num_dpb_buffer = 20480 / fs_in_mb;
    363 				break;
    364 			case 41:
    365 				num_dpb_buffer = 32768 / fs_in_mb;
    366 				break;
    367 			case 42:
    368 				num_dpb_buffer = 34816 / fs_in_mb;
    369 				break;
    370 			case 50:
    371 				num_dpb_buffer = 110400 / fs_in_mb;
    372 				break;
    373 			case 51:
    374 				num_dpb_buffer = 184320 / fs_in_mb;
    375 				break;
    376 			default:
    377 				num_dpb_buffer = 184320 / fs_in_mb;
    378 				break;
    379 			}
    380 			num_dpb_buffer++;
    381 			max_references = MAX2(MIN2(NUM_H264_REFS, num_dpb_buffer), max_references);
    382 			dpb_size = image_size * max_references;
    383 			if ((dec->stream_type != RUVD_CODEC_H264_PERF) ||
    384 			    (((struct r600_common_screen*)dec->screen)->family < CHIP_POLARIS10)) {
    385 				dpb_size += max_references * align(width_in_mb * height_in_mb  * 192, alignment);
    386 				dpb_size += align(width_in_mb * height_in_mb * 32, alignment);
    387 			}
    388 		} else {
    389 			// the firmware seems to allways assume a minimum of ref frames
    390 			max_references = MAX2(NUM_H264_REFS, max_references);
    391 			// reference picture buffer
    392 			dpb_size = image_size * max_references;
    393 			if ((dec->stream_type != RUVD_CODEC_H264_PERF) ||
    394 			    (((struct r600_common_screen*)dec->screen)->family < CHIP_POLARIS10)) {
    395 				// macroblock context buffer
    396 				dpb_size += width_in_mb * height_in_mb * max_references * 192;
    397 				// IT surface buffer
    398 				dpb_size += width_in_mb * height_in_mb * 32;
    399 			}
    400 		}
    401 		break;
    402 	}
    403 
    404 	case PIPE_VIDEO_FORMAT_HEVC:
    405 		if (dec->base.width * dec->base.height >= 4096*2000)
    406 			max_references = MAX2(max_references, 8);
    407 		else
    408 			max_references = MAX2(max_references, 17);
    409 
    410 		width = align (width, 16);
    411 		height = align (height, 16);
    412 		if (dec->base.profile == PIPE_VIDEO_PROFILE_HEVC_MAIN_10)
    413 			dpb_size = align((width * height * 9) / 4, 256) * max_references;
    414 		else
    415 			dpb_size = align((width * height * 3) / 2, 256) * max_references;
    416 		break;
    417 
    418 	case PIPE_VIDEO_FORMAT_VC1:
    419 		// the firmware seems to allways assume a minimum of ref frames
    420 		max_references = MAX2(NUM_VC1_REFS, max_references);
    421 
    422 		// reference picture buffer
    423 		dpb_size = image_size * max_references;
    424 
    425 		// CONTEXT_BUFFER
    426 		dpb_size += width_in_mb * height_in_mb * 128;
    427 
    428 		// IT surface buffer
    429 		dpb_size += width_in_mb * 64;
    430 
    431 		// DB surface buffer
    432 		dpb_size += width_in_mb * 128;
    433 
    434 		// BP
    435 		dpb_size += align(MAX2(width_in_mb, height_in_mb) * 7 * 16, 64);
    436 		break;
    437 
    438 	case PIPE_VIDEO_FORMAT_MPEG12:
    439 		// reference picture buffer, must be big enough for all frames
    440 		dpb_size = image_size * NUM_MPEG2_REFS;
    441 		break;
    442 
    443 	case PIPE_VIDEO_FORMAT_MPEG4:
    444 		// reference picture buffer
    445 		dpb_size = image_size * max_references;
    446 
    447 		// CM
    448 		dpb_size += width_in_mb * height_in_mb * 64;
    449 
    450 		// IT surface buffer
    451 		dpb_size += align(width_in_mb * height_in_mb * 32, 64);
    452 
    453 		dpb_size = MAX2(dpb_size, 30 * 1024 * 1024);
    454 		break;
    455 
    456 	default:
    457 		// something is missing here
    458 		assert(0);
    459 
    460 		// at least use a sane default value
    461 		dpb_size = 32 * 1024 * 1024;
    462 		break;
    463 	}
    464 	return dpb_size;
    465 }
    466 
    467 /* free associated data in the video buffer callback */
    468 static void ruvd_destroy_associated_data(void *data)
    469 {
    470 	/* NOOP, since we only use an intptr */
    471 }
    472 
    473 /* get h264 specific message bits */
    474 static struct ruvd_h264 get_h264_msg(struct ruvd_decoder *dec, struct pipe_h264_picture_desc *pic)
    475 {
    476 	struct ruvd_h264 result;
    477 
    478 	memset(&result, 0, sizeof(result));
    479 	switch (pic->base.profile) {
    480 	case PIPE_VIDEO_PROFILE_MPEG4_AVC_BASELINE:
    481 		result.profile = RUVD_H264_PROFILE_BASELINE;
    482 		break;
    483 
    484 	case PIPE_VIDEO_PROFILE_MPEG4_AVC_MAIN:
    485 		result.profile = RUVD_H264_PROFILE_MAIN;
    486 		break;
    487 
    488 	case PIPE_VIDEO_PROFILE_MPEG4_AVC_HIGH:
    489 		result.profile = RUVD_H264_PROFILE_HIGH;
    490 		break;
    491 
    492 	default:
    493 		assert(0);
    494 		break;
    495 	}
    496 
    497 	result.level = dec->base.level;
    498 
    499 	result.sps_info_flags = 0;
    500 	result.sps_info_flags |= pic->pps->sps->direct_8x8_inference_flag << 0;
    501 	result.sps_info_flags |= pic->pps->sps->mb_adaptive_frame_field_flag << 1;
    502 	result.sps_info_flags |= pic->pps->sps->frame_mbs_only_flag << 2;
    503 	result.sps_info_flags |= pic->pps->sps->delta_pic_order_always_zero_flag << 3;
    504 
    505 	result.bit_depth_luma_minus8 = pic->pps->sps->bit_depth_luma_minus8;
    506 	result.bit_depth_chroma_minus8 = pic->pps->sps->bit_depth_chroma_minus8;
    507 	result.log2_max_frame_num_minus4 = pic->pps->sps->log2_max_frame_num_minus4;
    508 	result.pic_order_cnt_type = pic->pps->sps->pic_order_cnt_type;
    509 	result.log2_max_pic_order_cnt_lsb_minus4 = pic->pps->sps->log2_max_pic_order_cnt_lsb_minus4;
    510 
    511 	switch (dec->base.chroma_format) {
    512 	case PIPE_VIDEO_CHROMA_FORMAT_NONE:
    513 		/* TODO: assert? */
    514 		break;
    515 	case PIPE_VIDEO_CHROMA_FORMAT_400:
    516 		result.chroma_format = 0;
    517 		break;
    518 	case PIPE_VIDEO_CHROMA_FORMAT_420:
    519 		result.chroma_format = 1;
    520 		break;
    521 	case PIPE_VIDEO_CHROMA_FORMAT_422:
    522 		result.chroma_format = 2;
    523 		break;
    524 	case PIPE_VIDEO_CHROMA_FORMAT_444:
    525 		result.chroma_format = 3;
    526 		break;
    527 	}
    528 
    529 	result.pps_info_flags = 0;
    530 	result.pps_info_flags |= pic->pps->transform_8x8_mode_flag << 0;
    531 	result.pps_info_flags |= pic->pps->redundant_pic_cnt_present_flag << 1;
    532 	result.pps_info_flags |= pic->pps->constrained_intra_pred_flag << 2;
    533 	result.pps_info_flags |= pic->pps->deblocking_filter_control_present_flag << 3;
    534 	result.pps_info_flags |= pic->pps->weighted_bipred_idc << 4;
    535 	result.pps_info_flags |= pic->pps->weighted_pred_flag << 6;
    536 	result.pps_info_flags |= pic->pps->bottom_field_pic_order_in_frame_present_flag << 7;
    537 	result.pps_info_flags |= pic->pps->entropy_coding_mode_flag << 8;
    538 
    539 	result.num_slice_groups_minus1 = pic->pps->num_slice_groups_minus1;
    540 	result.slice_group_map_type = pic->pps->slice_group_map_type;
    541 	result.slice_group_change_rate_minus1 = pic->pps->slice_group_change_rate_minus1;
    542 	result.pic_init_qp_minus26 = pic->pps->pic_init_qp_minus26;
    543 	result.chroma_qp_index_offset = pic->pps->chroma_qp_index_offset;
    544 	result.second_chroma_qp_index_offset = pic->pps->second_chroma_qp_index_offset;
    545 
    546 	memcpy(result.scaling_list_4x4, pic->pps->ScalingList4x4, 6*16);
    547 	memcpy(result.scaling_list_8x8, pic->pps->ScalingList8x8, 2*64);
    548 
    549 	if (dec->stream_type == RUVD_CODEC_H264_PERF) {
    550 		memcpy(dec->it, result.scaling_list_4x4, 6*16);
    551 		memcpy((dec->it + 96), result.scaling_list_8x8, 2*64);
    552 	}
    553 
    554 	result.num_ref_frames = pic->num_ref_frames;
    555 
    556 	result.num_ref_idx_l0_active_minus1 = pic->num_ref_idx_l0_active_minus1;
    557 	result.num_ref_idx_l1_active_minus1 = pic->num_ref_idx_l1_active_minus1;
    558 
    559 	result.frame_num = pic->frame_num;
    560 	memcpy(result.frame_num_list, pic->frame_num_list, 4*16);
    561 	result.curr_field_order_cnt_list[0] = pic->field_order_cnt[0];
    562 	result.curr_field_order_cnt_list[1] = pic->field_order_cnt[1];
    563 	memcpy(result.field_order_cnt_list, pic->field_order_cnt_list, 4*16*2);
    564 
    565 	result.decoded_pic_idx = pic->frame_num;
    566 
    567 	return result;
    568 }
    569 
    570 /* get h265 specific message bits */
    571 static struct ruvd_h265 get_h265_msg(struct ruvd_decoder *dec, struct pipe_video_buffer *target,
    572 				     struct pipe_h265_picture_desc *pic)
    573 {
    574 	struct ruvd_h265 result;
    575 	unsigned i;
    576 
    577 	memset(&result, 0, sizeof(result));
    578 
    579 	result.sps_info_flags = 0;
    580 	result.sps_info_flags |= pic->pps->sps->scaling_list_enabled_flag << 0;
    581 	result.sps_info_flags |= pic->pps->sps->amp_enabled_flag << 1;
    582 	result.sps_info_flags |= pic->pps->sps->sample_adaptive_offset_enabled_flag << 2;
    583 	result.sps_info_flags |= pic->pps->sps->pcm_enabled_flag << 3;
    584 	result.sps_info_flags |= pic->pps->sps->pcm_loop_filter_disabled_flag << 4;
    585 	result.sps_info_flags |= pic->pps->sps->long_term_ref_pics_present_flag << 5;
    586 	result.sps_info_flags |= pic->pps->sps->sps_temporal_mvp_enabled_flag << 6;
    587 	result.sps_info_flags |= pic->pps->sps->strong_intra_smoothing_enabled_flag << 7;
    588 	result.sps_info_flags |= pic->pps->sps->separate_colour_plane_flag << 8;
    589 	if (((struct r600_common_screen*)dec->screen)->family == CHIP_CARRIZO)
    590 		result.sps_info_flags |= 1 << 9;
    591 	if (pic->UseRefPicList == true)
    592 		result.sps_info_flags |= 1 << 10;
    593 
    594 	result.chroma_format = pic->pps->sps->chroma_format_idc;
    595 	result.bit_depth_luma_minus8 = pic->pps->sps->bit_depth_luma_minus8;
    596 	result.bit_depth_chroma_minus8 = pic->pps->sps->bit_depth_chroma_minus8;
    597 	result.log2_max_pic_order_cnt_lsb_minus4 = pic->pps->sps->log2_max_pic_order_cnt_lsb_minus4;
    598 	result.sps_max_dec_pic_buffering_minus1 = pic->pps->sps->sps_max_dec_pic_buffering_minus1;
    599 	result.log2_min_luma_coding_block_size_minus3 = pic->pps->sps->log2_min_luma_coding_block_size_minus3;
    600 	result.log2_diff_max_min_luma_coding_block_size = pic->pps->sps->log2_diff_max_min_luma_coding_block_size;
    601 	result.log2_min_transform_block_size_minus2 = pic->pps->sps->log2_min_transform_block_size_minus2;
    602 	result.log2_diff_max_min_transform_block_size = pic->pps->sps->log2_diff_max_min_transform_block_size;
    603 	result.max_transform_hierarchy_depth_inter = pic->pps->sps->max_transform_hierarchy_depth_inter;
    604 	result.max_transform_hierarchy_depth_intra = pic->pps->sps->max_transform_hierarchy_depth_intra;
    605 	result.pcm_sample_bit_depth_luma_minus1 = pic->pps->sps->pcm_sample_bit_depth_luma_minus1;
    606 	result.pcm_sample_bit_depth_chroma_minus1 = pic->pps->sps->pcm_sample_bit_depth_chroma_minus1;
    607 	result.log2_min_pcm_luma_coding_block_size_minus3 = pic->pps->sps->log2_min_pcm_luma_coding_block_size_minus3;
    608 	result.log2_diff_max_min_pcm_luma_coding_block_size = pic->pps->sps->log2_diff_max_min_pcm_luma_coding_block_size;
    609 	result.num_short_term_ref_pic_sets = pic->pps->sps->num_short_term_ref_pic_sets;
    610 
    611 	result.pps_info_flags = 0;
    612 	result.pps_info_flags |= pic->pps->dependent_slice_segments_enabled_flag << 0;
    613 	result.pps_info_flags |= pic->pps->output_flag_present_flag << 1;
    614 	result.pps_info_flags |= pic->pps->sign_data_hiding_enabled_flag << 2;
    615 	result.pps_info_flags |= pic->pps->cabac_init_present_flag << 3;
    616 	result.pps_info_flags |= pic->pps->constrained_intra_pred_flag << 4;
    617 	result.pps_info_flags |= pic->pps->transform_skip_enabled_flag << 5;
    618 	result.pps_info_flags |= pic->pps->cu_qp_delta_enabled_flag << 6;
    619 	result.pps_info_flags |= pic->pps->pps_slice_chroma_qp_offsets_present_flag << 7;
    620 	result.pps_info_flags |= pic->pps->weighted_pred_flag << 8;
    621 	result.pps_info_flags |= pic->pps->weighted_bipred_flag << 9;
    622 	result.pps_info_flags |= pic->pps->transquant_bypass_enabled_flag << 10;
    623 	result.pps_info_flags |= pic->pps->tiles_enabled_flag << 11;
    624 	result.pps_info_flags |= pic->pps->entropy_coding_sync_enabled_flag << 12;
    625 	result.pps_info_flags |= pic->pps->uniform_spacing_flag << 13;
    626 	result.pps_info_flags |= pic->pps->loop_filter_across_tiles_enabled_flag << 14;
    627 	result.pps_info_flags |= pic->pps->pps_loop_filter_across_slices_enabled_flag << 15;
    628 	result.pps_info_flags |= pic->pps->deblocking_filter_override_enabled_flag << 16;
    629 	result.pps_info_flags |= pic->pps->pps_deblocking_filter_disabled_flag << 17;
    630 	result.pps_info_flags |= pic->pps->lists_modification_present_flag << 18;
    631 	result.pps_info_flags |= pic->pps->slice_segment_header_extension_present_flag << 19;
    632 	//result.pps_info_flags |= pic->pps->deblocking_filter_control_present_flag; ???
    633 
    634 	result.num_extra_slice_header_bits = pic->pps->num_extra_slice_header_bits;
    635 	result.num_long_term_ref_pic_sps = pic->pps->sps->num_long_term_ref_pics_sps;
    636 	result.num_ref_idx_l0_default_active_minus1 = pic->pps->num_ref_idx_l0_default_active_minus1;
    637 	result.num_ref_idx_l1_default_active_minus1 = pic->pps->num_ref_idx_l1_default_active_minus1;
    638 	result.pps_cb_qp_offset = pic->pps->pps_cb_qp_offset;
    639 	result.pps_cr_qp_offset = pic->pps->pps_cr_qp_offset;
    640 	result.pps_beta_offset_div2 = pic->pps->pps_beta_offset_div2;
    641 	result.pps_tc_offset_div2 = pic->pps->pps_tc_offset_div2;
    642 	result.diff_cu_qp_delta_depth = pic->pps->diff_cu_qp_delta_depth;
    643 	result.num_tile_columns_minus1 = pic->pps->num_tile_columns_minus1;
    644 	result.num_tile_rows_minus1 = pic->pps->num_tile_rows_minus1;
    645 	result.log2_parallel_merge_level_minus2 = pic->pps->log2_parallel_merge_level_minus2;
    646 	result.init_qp_minus26 = pic->pps->init_qp_minus26;
    647 
    648 	for (i = 0; i < 19; ++i)
    649 		result.column_width_minus1[i] = pic->pps->column_width_minus1[i];
    650 
    651 	for (i = 0; i < 21; ++i)
    652 		result.row_height_minus1[i] = pic->pps->row_height_minus1[i];
    653 
    654 	result.num_delta_pocs_ref_rps_idx = pic->NumDeltaPocsOfRefRpsIdx;
    655 	result.curr_idx = pic->CurrPicOrderCntVal;
    656 	result.curr_poc = pic->CurrPicOrderCntVal;
    657 
    658 	vl_video_buffer_set_associated_data(target, &dec->base,
    659 					    (void *)(uintptr_t)pic->CurrPicOrderCntVal,
    660 					    &ruvd_destroy_associated_data);
    661 
    662 	for (i = 0; i < 16; ++i) {
    663 		struct pipe_video_buffer *ref = pic->ref[i];
    664 		uintptr_t ref_pic = 0;
    665 
    666 		result.poc_list[i] = pic->PicOrderCntVal[i];
    667 
    668 		if (ref)
    669 			ref_pic = (uintptr_t)vl_video_buffer_get_associated_data(ref, &dec->base);
    670 		else
    671 			ref_pic = 0x7F;
    672 		result.ref_pic_list[i] = ref_pic;
    673 	}
    674 
    675 	for (i = 0; i < 8; ++i) {
    676 		result.ref_pic_set_st_curr_before[i] = 0xFF;
    677 		result.ref_pic_set_st_curr_after[i] = 0xFF;
    678 		result.ref_pic_set_lt_curr[i] = 0xFF;
    679 	}
    680 
    681 	for (i = 0; i < pic->NumPocStCurrBefore; ++i)
    682 		result.ref_pic_set_st_curr_before[i] = pic->RefPicSetStCurrBefore[i];
    683 
    684 	for (i = 0; i < pic->NumPocStCurrAfter; ++i)
    685 		result.ref_pic_set_st_curr_after[i] = pic->RefPicSetStCurrAfter[i];
    686 
    687 	for (i = 0; i < pic->NumPocLtCurr; ++i)
    688 		result.ref_pic_set_lt_curr[i] = pic->RefPicSetLtCurr[i];
    689 
    690 	for (i = 0; i < 6; ++i)
    691 		result.ucScalingListDCCoefSizeID2[i] = pic->pps->sps->ScalingListDCCoeff16x16[i];
    692 
    693 	for (i = 0; i < 2; ++i)
    694 		result.ucScalingListDCCoefSizeID3[i] = pic->pps->sps->ScalingListDCCoeff32x32[i];
    695 
    696 	memcpy(dec->it, pic->pps->sps->ScalingList4x4, 6 * 16);
    697 	memcpy(dec->it + 96, pic->pps->sps->ScalingList8x8, 6 * 64);
    698 	memcpy(dec->it + 480, pic->pps->sps->ScalingList16x16, 6 * 64);
    699 	memcpy(dec->it + 864, pic->pps->sps->ScalingList32x32, 2 * 64);
    700 
    701 	for (i = 0 ; i < 2 ; i++) {
    702 		for (int j = 0 ; j < 15 ; j++)
    703 			result.direct_reflist[i][j] = pic->RefPicList[i][j];
    704 	}
    705 
    706 	if ((pic->base.profile == PIPE_VIDEO_PROFILE_HEVC_MAIN_10) &&
    707 		(target->buffer_format == PIPE_FORMAT_NV12)) {
    708 		result.p010_mode = 0;
    709 		result.luma_10to8 = 5;
    710 		result.chroma_10to8 = 5;
    711 		result.sclr_luma10to8 = 4;
    712 		result.sclr_chroma10to8 = 4;
    713 	}
    714 
    715 	/* TODO
    716 	result.highestTid;
    717 	result.isNonRef;
    718 
    719 	IDRPicFlag;
    720 	RAPPicFlag;
    721 	NumPocTotalCurr;
    722 	NumShortTermPictureSliceHeaderBits;
    723 	NumLongTermPictureSliceHeaderBits;
    724 
    725 	IsLongTerm[16];
    726 	*/
    727 
    728 	return result;
    729 }
    730 
    731 /* get vc1 specific message bits */
    732 static struct ruvd_vc1 get_vc1_msg(struct pipe_vc1_picture_desc *pic)
    733 {
    734 	struct ruvd_vc1 result;
    735 
    736 	memset(&result, 0, sizeof(result));
    737 
    738 	switch(pic->base.profile) {
    739 	case PIPE_VIDEO_PROFILE_VC1_SIMPLE:
    740 		result.profile = RUVD_VC1_PROFILE_SIMPLE;
    741 		result.level = 1;
    742 		break;
    743 
    744 	case PIPE_VIDEO_PROFILE_VC1_MAIN:
    745 		result.profile = RUVD_VC1_PROFILE_MAIN;
    746 		result.level = 2;
    747 		break;
    748 
    749 	case PIPE_VIDEO_PROFILE_VC1_ADVANCED:
    750 		result.profile = RUVD_VC1_PROFILE_ADVANCED;
    751 		result.level = 4;
    752 		break;
    753 
    754 	default:
    755 		assert(0);
    756 	}
    757 
    758 	/* fields common for all profiles */
    759 	result.sps_info_flags |= pic->postprocflag << 7;
    760 	result.sps_info_flags |= pic->pulldown << 6;
    761 	result.sps_info_flags |= pic->interlace << 5;
    762 	result.sps_info_flags |= pic->tfcntrflag << 4;
    763 	result.sps_info_flags |= pic->finterpflag << 3;
    764 	result.sps_info_flags |= pic->psf << 1;
    765 
    766 	result.pps_info_flags |= pic->range_mapy_flag << 31;
    767 	result.pps_info_flags |= pic->range_mapy << 28;
    768 	result.pps_info_flags |= pic->range_mapuv_flag << 27;
    769 	result.pps_info_flags |= pic->range_mapuv << 24;
    770 	result.pps_info_flags |= pic->multires << 21;
    771 	result.pps_info_flags |= pic->maxbframes << 16;
    772 	result.pps_info_flags |= pic->overlap << 11;
    773 	result.pps_info_flags |= pic->quantizer << 9;
    774 	result.pps_info_flags |= pic->panscan_flag << 7;
    775 	result.pps_info_flags |= pic->refdist_flag << 6;
    776 	result.pps_info_flags |= pic->vstransform << 0;
    777 
    778 	/* some fields only apply to main/advanced profile */
    779 	if (pic->base.profile != PIPE_VIDEO_PROFILE_VC1_SIMPLE) {
    780 		result.pps_info_flags |= pic->syncmarker << 20;
    781 		result.pps_info_flags |= pic->rangered << 19;
    782 		result.pps_info_flags |= pic->loopfilter << 5;
    783 		result.pps_info_flags |= pic->fastuvmc << 4;
    784 		result.pps_info_flags |= pic->extended_mv << 3;
    785 		result.pps_info_flags |= pic->extended_dmv << 8;
    786 		result.pps_info_flags |= pic->dquant << 1;
    787 	}
    788 
    789 	result.chroma_format = 1;
    790 
    791 #if 0
    792 //(((unsigned int)(pPicParams->advance.reserved1))        << SPS_INFO_VC1_RESERVED_SHIFT)
    793 uint32_t 	slice_count
    794 uint8_t 	picture_type
    795 uint8_t 	frame_coding_mode
    796 uint8_t 	deblockEnable
    797 uint8_t 	pquant
    798 #endif
    799 
    800 	return result;
    801 }
    802 
    803 /* extract the frame number from a referenced video buffer */
    804 static uint32_t get_ref_pic_idx(struct ruvd_decoder *dec, struct pipe_video_buffer *ref)
    805 {
    806 	uint32_t min = MAX2(dec->frame_number, NUM_MPEG2_REFS) - NUM_MPEG2_REFS;
    807 	uint32_t max = MAX2(dec->frame_number, 1) - 1;
    808 	uintptr_t frame;
    809 
    810 	/* seems to be the most sane fallback */
    811 	if (!ref)
    812 		return max;
    813 
    814 	/* get the frame number from the associated data */
    815 	frame = (uintptr_t)vl_video_buffer_get_associated_data(ref, &dec->base);
    816 
    817 	/* limit the frame number to a valid range */
    818 	return MAX2(MIN2(frame, max), min);
    819 }
    820 
    821 /* get mpeg2 specific msg bits */
    822 static struct ruvd_mpeg2 get_mpeg2_msg(struct ruvd_decoder *dec,
    823 				       struct pipe_mpeg12_picture_desc *pic)
    824 {
    825 	const int *zscan = pic->alternate_scan ? vl_zscan_alternate : vl_zscan_normal;
    826 	struct ruvd_mpeg2 result;
    827 	unsigned i;
    828 
    829 	memset(&result, 0, sizeof(result));
    830 	result.decoded_pic_idx = dec->frame_number;
    831 	for (i = 0; i < 2; ++i)
    832 		result.ref_pic_idx[i] = get_ref_pic_idx(dec, pic->ref[i]);
    833 
    834 	result.load_intra_quantiser_matrix = 1;
    835 	result.load_nonintra_quantiser_matrix = 1;
    836 
    837 	for (i = 0; i < 64; ++i) {
    838 		result.intra_quantiser_matrix[i] = pic->intra_matrix[zscan[i]];
    839 		result.nonintra_quantiser_matrix[i] = pic->non_intra_matrix[zscan[i]];
    840 	}
    841 
    842 	result.profile_and_level_indication = 0;
    843 	result.chroma_format = 0x1;
    844 
    845 	result.picture_coding_type = pic->picture_coding_type;
    846 	result.f_code[0][0] = pic->f_code[0][0] + 1;
    847 	result.f_code[0][1] = pic->f_code[0][1] + 1;
    848 	result.f_code[1][0] = pic->f_code[1][0] + 1;
    849 	result.f_code[1][1] = pic->f_code[1][1] + 1;
    850 	result.intra_dc_precision = pic->intra_dc_precision;
    851 	result.pic_structure = pic->picture_structure;
    852 	result.top_field_first = pic->top_field_first;
    853 	result.frame_pred_frame_dct = pic->frame_pred_frame_dct;
    854 	result.concealment_motion_vectors = pic->concealment_motion_vectors;
    855 	result.q_scale_type = pic->q_scale_type;
    856 	result.intra_vlc_format = pic->intra_vlc_format;
    857 	result.alternate_scan = pic->alternate_scan;
    858 
    859 	return result;
    860 }
    861 
    862 /* get mpeg4 specific msg bits */
    863 static struct ruvd_mpeg4 get_mpeg4_msg(struct ruvd_decoder *dec,
    864 				       struct pipe_mpeg4_picture_desc *pic)
    865 {
    866 	struct ruvd_mpeg4 result;
    867 	unsigned i;
    868 
    869 	memset(&result, 0, sizeof(result));
    870 	result.decoded_pic_idx = dec->frame_number;
    871 	for (i = 0; i < 2; ++i)
    872 		result.ref_pic_idx[i] = get_ref_pic_idx(dec, pic->ref[i]);
    873 
    874 	result.variant_type = 0;
    875 	result.profile_and_level_indication = 0xF0; // ASP Level0
    876 
    877 	result.video_object_layer_verid = 0x5; // advanced simple
    878 	result.video_object_layer_shape = 0x0; // rectangular
    879 
    880 	result.video_object_layer_width = dec->base.width;
    881 	result.video_object_layer_height = dec->base.height;
    882 
    883 	result.vop_time_increment_resolution = pic->vop_time_increment_resolution;
    884 
    885 	result.flags |= pic->short_video_header << 0;
    886 	//result.flags |= obmc_disable << 1;
    887 	result.flags |= pic->interlaced << 2;
    888         result.flags |= 1 << 3; // load_intra_quant_mat
    889 	result.flags |= 1 << 4; // load_nonintra_quant_mat
    890 	result.flags |= pic->quarter_sample << 5;
    891 	result.flags |= 1 << 6; // complexity_estimation_disable
    892 	result.flags |= pic->resync_marker_disable << 7;
    893 	//result.flags |= data_partitioned << 8;
    894 	//result.flags |= reversible_vlc << 9;
    895 	result.flags |= 0 << 10; // newpred_enable
    896 	result.flags |= 0 << 11; // reduced_resolution_vop_enable
    897 	//result.flags |= scalability << 12;
    898 	//result.flags |= is_object_layer_identifier << 13;
    899 	//result.flags |= fixed_vop_rate << 14;
    900 	//result.flags |= newpred_segment_type << 15;
    901 
    902 	result.quant_type = pic->quant_type;
    903 
    904 	for (i = 0; i < 64; ++i) {
    905 		result.intra_quant_mat[i] = pic->intra_matrix[vl_zscan_normal[i]];
    906 		result.nonintra_quant_mat[i] = pic->non_intra_matrix[vl_zscan_normal[i]];
    907 	}
    908 
    909 	/*
    910 	int32_t 	trd [2]
    911 	int32_t 	trb [2]
    912 	uint8_t 	vop_coding_type
    913 	uint8_t 	vop_fcode_forward
    914 	uint8_t 	vop_fcode_backward
    915 	uint8_t 	rounding_control
    916 	uint8_t 	alternate_vertical_scan_flag
    917 	uint8_t 	top_field_first
    918 	*/
    919 
    920 	return result;
    921 }
    922 
    923 /**
    924  * destroy this video decoder
    925  */
    926 static void ruvd_destroy(struct pipe_video_codec *decoder)
    927 {
    928 	struct ruvd_decoder *dec = (struct ruvd_decoder*)decoder;
    929 	unsigned i;
    930 
    931 	assert(decoder);
    932 
    933 	map_msg_fb_it_buf(dec);
    934 	memset(dec->msg, 0, sizeof(*dec->msg));
    935 	dec->msg->size = sizeof(*dec->msg);
    936 	dec->msg->msg_type = RUVD_MSG_DESTROY;
    937 	dec->msg->stream_handle = dec->stream_handle;
    938 	send_msg_buf(dec);
    939 
    940 	flush(dec, 0);
    941 
    942 	dec->ws->cs_destroy(dec->cs);
    943 
    944 	for (i = 0; i < NUM_BUFFERS; ++i) {
    945 		rvid_destroy_buffer(&dec->msg_fb_it_buffers[i]);
    946 		rvid_destroy_buffer(&dec->bs_buffers[i]);
    947 	}
    948 
    949 	rvid_destroy_buffer(&dec->dpb);
    950 	rvid_destroy_buffer(&dec->ctx);
    951 	rvid_destroy_buffer(&dec->sessionctx);
    952 
    953 	FREE(dec);
    954 }
    955 
    956 /**
    957  * start decoding of a new frame
    958  */
    959 static void ruvd_begin_frame(struct pipe_video_codec *decoder,
    960 			     struct pipe_video_buffer *target,
    961 			     struct pipe_picture_desc *picture)
    962 {
    963 	struct ruvd_decoder *dec = (struct ruvd_decoder*)decoder;
    964 	uintptr_t frame;
    965 
    966 	assert(decoder);
    967 
    968 	frame = ++dec->frame_number;
    969 	vl_video_buffer_set_associated_data(target, decoder, (void *)frame,
    970 					    &ruvd_destroy_associated_data);
    971 
    972 	dec->bs_size = 0;
    973 	dec->bs_ptr = dec->ws->buffer_map(
    974 		dec->bs_buffers[dec->cur_buffer].res->buf,
    975 		dec->cs, PIPE_TRANSFER_WRITE);
    976 }
    977 
    978 /**
    979  * decode a macroblock
    980  */
    981 static void ruvd_decode_macroblock(struct pipe_video_codec *decoder,
    982 				   struct pipe_video_buffer *target,
    983 				   struct pipe_picture_desc *picture,
    984 				   const struct pipe_macroblock *macroblocks,
    985 				   unsigned num_macroblocks)
    986 {
    987 	/* not supported (yet) */
    988 	assert(0);
    989 }
    990 
    991 /**
    992  * decode a bitstream
    993  */
    994 static void ruvd_decode_bitstream(struct pipe_video_codec *decoder,
    995 				  struct pipe_video_buffer *target,
    996 				  struct pipe_picture_desc *picture,
    997 				  unsigned num_buffers,
    998 				  const void * const *buffers,
    999 				  const unsigned *sizes)
   1000 {
   1001 	struct ruvd_decoder *dec = (struct ruvd_decoder*)decoder;
   1002 	unsigned i;
   1003 
   1004 	assert(decoder);
   1005 
   1006 	if (!dec->bs_ptr)
   1007 		return;
   1008 
   1009 	for (i = 0; i < num_buffers; ++i) {
   1010 		struct rvid_buffer *buf = &dec->bs_buffers[dec->cur_buffer];
   1011 		unsigned new_size = dec->bs_size + sizes[i];
   1012 
   1013 		if (new_size > buf->res->buf->size) {
   1014 			dec->ws->buffer_unmap(buf->res->buf);
   1015 			if (!rvid_resize_buffer(dec->screen, dec->cs, buf, new_size)) {
   1016 				RVID_ERR("Can't resize bitstream buffer!");
   1017 				return;
   1018 			}
   1019 
   1020 			dec->bs_ptr = dec->ws->buffer_map(buf->res->buf, dec->cs,
   1021 							  PIPE_TRANSFER_WRITE);
   1022 			if (!dec->bs_ptr)
   1023 				return;
   1024 
   1025 			dec->bs_ptr += dec->bs_size;
   1026 		}
   1027 
   1028 		memcpy(dec->bs_ptr, buffers[i], sizes[i]);
   1029 		dec->bs_size += sizes[i];
   1030 		dec->bs_ptr += sizes[i];
   1031 	}
   1032 }
   1033 
   1034 /**
   1035  * end decoding of the current frame
   1036  */
   1037 static void ruvd_end_frame(struct pipe_video_codec *decoder,
   1038 			   struct pipe_video_buffer *target,
   1039 			   struct pipe_picture_desc *picture)
   1040 {
   1041 	struct ruvd_decoder *dec = (struct ruvd_decoder*)decoder;
   1042 	struct pb_buffer *dt;
   1043 	struct rvid_buffer *msg_fb_it_buf, *bs_buf;
   1044 	unsigned bs_size;
   1045 
   1046 	assert(decoder);
   1047 
   1048 	if (!dec->bs_ptr)
   1049 		return;
   1050 
   1051 	msg_fb_it_buf = &dec->msg_fb_it_buffers[dec->cur_buffer];
   1052 	bs_buf = &dec->bs_buffers[dec->cur_buffer];
   1053 
   1054 	bs_size = align(dec->bs_size, 128);
   1055 	memset(dec->bs_ptr, 0, bs_size - dec->bs_size);
   1056 	dec->ws->buffer_unmap(bs_buf->res->buf);
   1057 
   1058 	map_msg_fb_it_buf(dec);
   1059 	dec->msg->size = sizeof(*dec->msg);
   1060 	dec->msg->msg_type = RUVD_MSG_DECODE;
   1061 	dec->msg->stream_handle = dec->stream_handle;
   1062 	dec->msg->status_report_feedback_number = dec->frame_number;
   1063 
   1064 	dec->msg->body.decode.stream_type = dec->stream_type;
   1065 	dec->msg->body.decode.decode_flags = 0x1;
   1066 	dec->msg->body.decode.width_in_samples = dec->base.width;
   1067 	dec->msg->body.decode.height_in_samples = dec->base.height;
   1068 
   1069 	if ((picture->profile == PIPE_VIDEO_PROFILE_VC1_SIMPLE) ||
   1070 	    (picture->profile == PIPE_VIDEO_PROFILE_VC1_MAIN)) {
   1071 		dec->msg->body.decode.width_in_samples = align(dec->msg->body.decode.width_in_samples, 16) / 16;
   1072 		dec->msg->body.decode.height_in_samples = align(dec->msg->body.decode.height_in_samples, 16) / 16;
   1073 	}
   1074 
   1075 	dec->msg->body.decode.dpb_size = dec->dpb.res->buf->size;
   1076 	dec->msg->body.decode.bsd_size = bs_size;
   1077 	dec->msg->body.decode.db_pitch = align(dec->base.width, 16);
   1078 
   1079 	if (dec->stream_type == RUVD_CODEC_H264_PERF &&
   1080 	    ((struct r600_common_screen*)dec->screen)->family >= CHIP_POLARIS10)
   1081 		dec->msg->body.decode.dpb_reserved = dec->ctx.res->buf->size;
   1082 
   1083 	dt = dec->set_dtb(dec->msg, (struct vl_video_buffer *)target);
   1084 	if (((struct r600_common_screen*)dec->screen)->family >= CHIP_STONEY)
   1085 		dec->msg->body.decode.dt_wa_chroma_top_offset = dec->msg->body.decode.dt_pitch / 2;
   1086 
   1087 	switch (u_reduce_video_profile(picture->profile)) {
   1088 	case PIPE_VIDEO_FORMAT_MPEG4_AVC:
   1089 		dec->msg->body.decode.codec.h264 = get_h264_msg(dec, (struct pipe_h264_picture_desc*)picture);
   1090 		break;
   1091 
   1092 	case PIPE_VIDEO_FORMAT_HEVC:
   1093 		dec->msg->body.decode.codec.h265 = get_h265_msg(dec, target, (struct pipe_h265_picture_desc*)picture);
   1094 		if (dec->ctx.res == NULL) {
   1095 			unsigned ctx_size;
   1096 			if (dec->base.profile == PIPE_VIDEO_PROFILE_HEVC_MAIN_10)
   1097 				ctx_size = calc_ctx_size_h265_main10(dec, (struct pipe_h265_picture_desc*)picture);
   1098 			else
   1099 				ctx_size = calc_ctx_size_h265_main(dec);
   1100 			if (!rvid_create_buffer(dec->screen, &dec->ctx, ctx_size, PIPE_USAGE_DEFAULT)) {
   1101 				RVID_ERR("Can't allocated context buffer.\n");
   1102 			}
   1103 			rvid_clear_buffer(decoder->context, &dec->ctx);
   1104 		}
   1105 
   1106 		if (dec->ctx.res)
   1107 			dec->msg->body.decode.dpb_reserved = dec->ctx.res->buf->size;
   1108 		break;
   1109 
   1110 	case PIPE_VIDEO_FORMAT_VC1:
   1111 		dec->msg->body.decode.codec.vc1 = get_vc1_msg((struct pipe_vc1_picture_desc*)picture);
   1112 		break;
   1113 
   1114 	case PIPE_VIDEO_FORMAT_MPEG12:
   1115 		dec->msg->body.decode.codec.mpeg2 = get_mpeg2_msg(dec, (struct pipe_mpeg12_picture_desc*)picture);
   1116 		break;
   1117 
   1118 	case PIPE_VIDEO_FORMAT_MPEG4:
   1119 		dec->msg->body.decode.codec.mpeg4 = get_mpeg4_msg(dec, (struct pipe_mpeg4_picture_desc*)picture);
   1120 		break;
   1121 
   1122 	default:
   1123 		assert(0);
   1124 		return;
   1125 	}
   1126 
   1127 	dec->msg->body.decode.db_surf_tile_config = dec->msg->body.decode.dt_surf_tile_config;
   1128 	dec->msg->body.decode.extension_support = 0x1;
   1129 
   1130 	/* set at least the feedback buffer size */
   1131 	dec->fb[0] = dec->fb_size;
   1132 
   1133 	send_msg_buf(dec);
   1134 
   1135 	send_cmd(dec, RUVD_CMD_DPB_BUFFER, dec->dpb.res->buf, 0,
   1136 		 RADEON_USAGE_READWRITE, RADEON_DOMAIN_VRAM);
   1137 	if (dec->ctx.res)
   1138 		send_cmd(dec, RUVD_CMD_CONTEXT_BUFFER, dec->ctx.res->buf, 0,
   1139 			RADEON_USAGE_READWRITE, RADEON_DOMAIN_VRAM);
   1140 	send_cmd(dec, RUVD_CMD_BITSTREAM_BUFFER, bs_buf->res->buf,
   1141 		 0, RADEON_USAGE_READ, RADEON_DOMAIN_GTT);
   1142 	send_cmd(dec, RUVD_CMD_DECODING_TARGET_BUFFER, dt, 0,
   1143 		 RADEON_USAGE_WRITE, RADEON_DOMAIN_VRAM);
   1144 	send_cmd(dec, RUVD_CMD_FEEDBACK_BUFFER, msg_fb_it_buf->res->buf,
   1145 		 FB_BUFFER_OFFSET, RADEON_USAGE_WRITE, RADEON_DOMAIN_GTT);
   1146 	if (have_it(dec))
   1147 		send_cmd(dec, RUVD_CMD_ITSCALING_TABLE_BUFFER, msg_fb_it_buf->res->buf,
   1148 			 FB_BUFFER_OFFSET + dec->fb_size, RADEON_USAGE_READ, RADEON_DOMAIN_GTT);
   1149 	set_reg(dec, RUVD_ENGINE_CNTL, 1);
   1150 
   1151 	flush(dec, RADEON_FLUSH_ASYNC);
   1152 	next_buffer(dec);
   1153 }
   1154 
   1155 /**
   1156  * flush any outstanding command buffers to the hardware
   1157  */
   1158 static void ruvd_flush(struct pipe_video_codec *decoder)
   1159 {
   1160 }
   1161 
   1162 /**
   1163  * create and UVD decoder
   1164  */
   1165 struct pipe_video_codec *ruvd_create_decoder(struct pipe_context *context,
   1166 					     const struct pipe_video_codec *templ,
   1167 					     ruvd_set_dtb set_dtb)
   1168 {
   1169 	struct radeon_winsys* ws = ((struct r600_common_context *)context)->ws;
   1170 	struct r600_common_context *rctx = (struct r600_common_context*)context;
   1171 	unsigned dpb_size;
   1172 	unsigned width = templ->width, height = templ->height;
   1173 	unsigned bs_buf_size;
   1174 	struct radeon_info info;
   1175 	struct ruvd_decoder *dec;
   1176 	int r, i;
   1177 
   1178 	ws->query_info(ws, &info);
   1179 
   1180 	switch(u_reduce_video_profile(templ->profile)) {
   1181 	case PIPE_VIDEO_FORMAT_MPEG12:
   1182 		if (templ->entrypoint > PIPE_VIDEO_ENTRYPOINT_BITSTREAM || info.family < CHIP_PALM)
   1183 			return vl_create_mpeg12_decoder(context, templ);
   1184 
   1185 		/* fall through */
   1186 	case PIPE_VIDEO_FORMAT_MPEG4:
   1187 		width = align(width, VL_MACROBLOCK_WIDTH);
   1188 		height = align(height, VL_MACROBLOCK_HEIGHT);
   1189 		break;
   1190 	case PIPE_VIDEO_FORMAT_MPEG4_AVC:
   1191 		width = align(width, VL_MACROBLOCK_WIDTH);
   1192 		height = align(height, VL_MACROBLOCK_HEIGHT);
   1193 		break;
   1194 
   1195 	default:
   1196 		break;
   1197 	}
   1198 
   1199 
   1200 	dec = CALLOC_STRUCT(ruvd_decoder);
   1201 
   1202 	if (!dec)
   1203 		return NULL;
   1204 
   1205 	if (info.drm_major < 3)
   1206 		dec->use_legacy = true;
   1207 
   1208 	dec->base = *templ;
   1209 	dec->base.context = context;
   1210 	dec->base.width = width;
   1211 	dec->base.height = height;
   1212 
   1213 	dec->base.destroy = ruvd_destroy;
   1214 	dec->base.begin_frame = ruvd_begin_frame;
   1215 	dec->base.decode_macroblock = ruvd_decode_macroblock;
   1216 	dec->base.decode_bitstream = ruvd_decode_bitstream;
   1217 	dec->base.end_frame = ruvd_end_frame;
   1218 	dec->base.flush = ruvd_flush;
   1219 
   1220 	dec->stream_type = profile2stream_type(dec, info.family);
   1221 	dec->set_dtb = set_dtb;
   1222 	dec->stream_handle = rvid_alloc_stream_handle();
   1223 	dec->screen = context->screen;
   1224 	dec->ws = ws;
   1225 	dec->cs = ws->cs_create(rctx->ctx, RING_UVD, NULL, NULL);
   1226 	if (!dec->cs) {
   1227 		RVID_ERR("Can't get command submission context.\n");
   1228 		goto error;
   1229 	}
   1230 
   1231 	dec->fb_size = (info.family == CHIP_TONGA) ? FB_BUFFER_SIZE_TONGA :
   1232 			FB_BUFFER_SIZE;
   1233 	bs_buf_size = width * height * (512 / (16 * 16));
   1234 	for (i = 0; i < NUM_BUFFERS; ++i) {
   1235 		unsigned msg_fb_it_size = FB_BUFFER_OFFSET + dec->fb_size;
   1236 		STATIC_ASSERT(sizeof(struct ruvd_msg) <= FB_BUFFER_OFFSET);
   1237 		if (have_it(dec))
   1238 			msg_fb_it_size += IT_SCALING_TABLE_SIZE;
   1239 		if (!rvid_create_buffer(dec->screen, &dec->msg_fb_it_buffers[i],
   1240 					msg_fb_it_size, PIPE_USAGE_STAGING)) {
   1241 			RVID_ERR("Can't allocated message buffers.\n");
   1242 			goto error;
   1243 		}
   1244 
   1245 		if (!rvid_create_buffer(dec->screen, &dec->bs_buffers[i],
   1246 					bs_buf_size, PIPE_USAGE_STAGING)) {
   1247 			RVID_ERR("Can't allocated bitstream buffers.\n");
   1248 			goto error;
   1249 		}
   1250 
   1251 		rvid_clear_buffer(context, &dec->msg_fb_it_buffers[i]);
   1252 		rvid_clear_buffer(context, &dec->bs_buffers[i]);
   1253 	}
   1254 
   1255 	dpb_size = calc_dpb_size(dec);
   1256 
   1257 	if (!rvid_create_buffer(dec->screen, &dec->dpb, dpb_size, PIPE_USAGE_DEFAULT)) {
   1258 		RVID_ERR("Can't allocated dpb.\n");
   1259 		goto error;
   1260 	}
   1261 
   1262 	rvid_clear_buffer(context, &dec->dpb);
   1263 
   1264 	if (dec->stream_type == RUVD_CODEC_H264_PERF && info.family >= CHIP_POLARIS10) {
   1265 		unsigned ctx_size = calc_ctx_size_h264_perf(dec);
   1266 		if (!rvid_create_buffer(dec->screen, &dec->ctx, ctx_size, PIPE_USAGE_DEFAULT)) {
   1267 			RVID_ERR("Can't allocated context buffer.\n");
   1268 			goto error;
   1269 		}
   1270 		rvid_clear_buffer(context, &dec->ctx);
   1271 	}
   1272 
   1273 	if (info.family >= CHIP_POLARIS10 && info.drm_minor >= 3) {
   1274 		if (!rvid_create_buffer(dec->screen, &dec->sessionctx,
   1275 					UVD_SESSION_CONTEXT_SIZE,
   1276 					PIPE_USAGE_DEFAULT)) {
   1277 			RVID_ERR("Can't allocated session ctx.\n");
   1278 			goto error;
   1279 		}
   1280 		rvid_clear_buffer(context, &dec->sessionctx);
   1281 	}
   1282 
   1283 	map_msg_fb_it_buf(dec);
   1284 	dec->msg->size = sizeof(*dec->msg);
   1285 	dec->msg->msg_type = RUVD_MSG_CREATE;
   1286 	dec->msg->stream_handle = dec->stream_handle;
   1287 	dec->msg->body.create.stream_type = dec->stream_type;
   1288 	dec->msg->body.create.width_in_samples = dec->base.width;
   1289 	dec->msg->body.create.height_in_samples = dec->base.height;
   1290 	dec->msg->body.create.dpb_size = dpb_size;
   1291 	send_msg_buf(dec);
   1292 	r = flush(dec, 0);
   1293 	if (r)
   1294 		goto error;
   1295 
   1296 	next_buffer(dec);
   1297 
   1298 	return &dec->base;
   1299 
   1300 error:
   1301 	if (dec->cs) dec->ws->cs_destroy(dec->cs);
   1302 
   1303 	for (i = 0; i < NUM_BUFFERS; ++i) {
   1304 		rvid_destroy_buffer(&dec->msg_fb_it_buffers[i]);
   1305 		rvid_destroy_buffer(&dec->bs_buffers[i]);
   1306 	}
   1307 
   1308 	rvid_destroy_buffer(&dec->dpb);
   1309 	rvid_destroy_buffer(&dec->ctx);
   1310 	rvid_destroy_buffer(&dec->sessionctx);
   1311 
   1312 	FREE(dec);
   1313 
   1314 	return NULL;
   1315 }
   1316 
   1317 /* calculate top/bottom offset */
   1318 static unsigned texture_offset(struct radeon_surf *surface, unsigned layer)
   1319 {
   1320 	return surface->level[0].offset +
   1321 		layer * surface->level[0].slice_size;
   1322 }
   1323 
   1324 /* hw encode the aspect of macro tiles */
   1325 static unsigned macro_tile_aspect(unsigned macro_tile_aspect)
   1326 {
   1327 	switch (macro_tile_aspect) {
   1328 	default:
   1329 	case 1: macro_tile_aspect = 0;  break;
   1330 	case 2: macro_tile_aspect = 1;  break;
   1331 	case 4: macro_tile_aspect = 2;  break;
   1332 	case 8: macro_tile_aspect = 3;  break;
   1333 	}
   1334 	return macro_tile_aspect;
   1335 }
   1336 
   1337 /* hw encode the bank width and height */
   1338 static unsigned bank_wh(unsigned bankwh)
   1339 {
   1340 	switch (bankwh) {
   1341 	default:
   1342 	case 1: bankwh = 0;     break;
   1343 	case 2: bankwh = 1;     break;
   1344 	case 4: bankwh = 2;     break;
   1345 	case 8: bankwh = 3;     break;
   1346 	}
   1347 	return bankwh;
   1348 }
   1349 
   1350 /**
   1351  * fill decoding target field from the luma and chroma surfaces
   1352  */
   1353 void ruvd_set_dt_surfaces(struct ruvd_msg *msg, struct radeon_surf *luma,
   1354 			  struct radeon_surf *chroma)
   1355 {
   1356 	msg->body.decode.dt_pitch = luma->level[0].nblk_x * luma->bpe;
   1357 	switch (luma->level[0].mode) {
   1358 	case RADEON_SURF_MODE_LINEAR_ALIGNED:
   1359 		msg->body.decode.dt_tiling_mode = RUVD_TILE_LINEAR;
   1360 		msg->body.decode.dt_array_mode = RUVD_ARRAY_MODE_LINEAR;
   1361 		break;
   1362 	case RADEON_SURF_MODE_1D:
   1363 		msg->body.decode.dt_tiling_mode = RUVD_TILE_8X8;
   1364 		msg->body.decode.dt_array_mode = RUVD_ARRAY_MODE_1D_THIN;
   1365 		break;
   1366 	case RADEON_SURF_MODE_2D:
   1367 		msg->body.decode.dt_tiling_mode = RUVD_TILE_8X8;
   1368 		msg->body.decode.dt_array_mode = RUVD_ARRAY_MODE_2D_THIN;
   1369 		break;
   1370 	default:
   1371 		assert(0);
   1372 		break;
   1373 	}
   1374 
   1375 	msg->body.decode.dt_luma_top_offset = texture_offset(luma, 0);
   1376 	msg->body.decode.dt_chroma_top_offset = texture_offset(chroma, 0);
   1377 	if (msg->body.decode.dt_field_mode) {
   1378 		msg->body.decode.dt_luma_bottom_offset = texture_offset(luma, 1);
   1379 		msg->body.decode.dt_chroma_bottom_offset = texture_offset(chroma, 1);
   1380 	} else {
   1381 		msg->body.decode.dt_luma_bottom_offset = msg->body.decode.dt_luma_top_offset;
   1382 		msg->body.decode.dt_chroma_bottom_offset = msg->body.decode.dt_chroma_top_offset;
   1383 	}
   1384 
   1385 	assert(luma->bankw == chroma->bankw);
   1386 	assert(luma->bankh == chroma->bankh);
   1387 	assert(luma->mtilea == chroma->mtilea);
   1388 
   1389 	msg->body.decode.dt_surf_tile_config |= RUVD_BANK_WIDTH(bank_wh(luma->bankw));
   1390 	msg->body.decode.dt_surf_tile_config |= RUVD_BANK_HEIGHT(bank_wh(luma->bankh));
   1391 	msg->body.decode.dt_surf_tile_config |= RUVD_MACRO_TILE_ASPECT_RATIO(macro_tile_aspect(luma->mtilea));
   1392 }
   1393