r600: fork and import gallium/radeon

This marks the end of code sharing between r600 and radeonsi.
It's getting difficult to work on radeonsi without breaking r600.

A lot of functions had to be renamed to prevent linker conflicts.
There are also minor cleanups.

Acked-by: Dave Airlie <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>

1 files changed, 1618 insertions, 0 deletions

diff --git a/src/gallium/drivers/r600/radeon_uvd.c b/src/gallium/drivers/r600/radeon_uvd.c
new file mode 100644
index 00000000000..fabc73e3834
--- /dev/null
+++ b/src/gallium/drivers/r600/radeon_uvd.c
@@ -0,0 +1,1618 @@
+/**************************************************************************
+ *
+ * Copyright 2011 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/*
+ * Authors:
+ *	Christian König <[email protected]>
+ *
+ */
+
+#include <sys/types.h>
+#include <assert.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include "pipe/p_video_codec.h"
+
+#include "util/u_memory.h"
+#include "util/u_video.h"
+
+#include "vl/vl_defines.h"
+#include "vl/vl_mpeg12_decoder.h"
+
+#include "r600_pipe_common.h"
+#include "radeon_video.h"
+#include "radeon_uvd.h"
+
+#define NUM_BUFFERS 4
+
+#define NUM_MPEG2_REFS 6
+#define NUM_H264_REFS 17
+#define NUM_VC1_REFS 5
+
+#define FB_BUFFER_OFFSET 0x1000
+#define FB_BUFFER_SIZE 2048
+#define FB_BUFFER_SIZE_TONGA (2048 * 64)
+#define IT_SCALING_TABLE_SIZE 992
+#define UVD_SESSION_CONTEXT_SIZE (128 * 1024)
+
+/* UVD decoder representation */
+struct ruvd_decoder {
+	struct pipe_video_codec		base;
+
+	ruvd_set_dtb			set_dtb;
+
+	unsigned			stream_handle;
+	unsigned			stream_type;
+	unsigned			frame_number;
+
+	struct pipe_screen		*screen;
+	struct radeon_winsys*		ws;
+	struct radeon_winsys_cs*	cs;
+
+	unsigned			cur_buffer;
+
+	struct rvid_buffer		msg_fb_it_buffers[NUM_BUFFERS];
+	struct ruvd_msg			*msg;
+	uint32_t			*fb;
+	unsigned			fb_size;
+	uint8_t				*it;
+
+	struct rvid_buffer		bs_buffers[NUM_BUFFERS];
+	void*				bs_ptr;
+	unsigned			bs_size;
+
+	struct rvid_buffer		dpb;
+	bool				use_legacy;
+	struct rvid_buffer		ctx;
+	struct rvid_buffer		sessionctx;
+	struct {
+		unsigned 		data0;
+		unsigned		data1;
+		unsigned		cmd;
+		unsigned		cntl;
+	} reg;
+};
+
+/* flush IB to the hardware */
+static int flush(struct ruvd_decoder *dec, unsigned flags)
+{
+	return dec->ws->cs_flush(dec->cs, flags, NULL);
+}
+
+/* add a new set register command to the IB */
+static void set_reg(struct ruvd_decoder *dec, unsigned reg, uint32_t val)
+{
+	radeon_emit(dec->cs, RUVD_PKT0(reg >> 2, 0));
+	radeon_emit(dec->cs, val);
+}
+
+/* send a command to the VCPU through the GPCOM registers */
+static void send_cmd(struct ruvd_decoder *dec, unsigned cmd,
+		     struct pb_buffer* buf, uint32_t off,
+		     enum radeon_bo_usage usage, enum radeon_bo_domain domain)
+{
+	int reloc_idx;
+
+	reloc_idx = dec->ws->cs_add_buffer(dec->cs, buf, usage | RADEON_USAGE_SYNCHRONIZED,
+					   domain,
+					  RADEON_PRIO_UVD);
+	if (!dec->use_legacy) {
+		uint64_t addr;
+		addr = dec->ws->buffer_get_virtual_address(buf);
+		addr = addr + off;
+		set_reg(dec, dec->reg.data0, addr);
+		set_reg(dec, dec->reg.data1, addr >> 32);
+	} else {
+		off += dec->ws->buffer_get_reloc_offset(buf);
+		set_reg(dec, RUVD_GPCOM_VCPU_DATA0, off);
+		set_reg(dec, RUVD_GPCOM_VCPU_DATA1, reloc_idx * 4);
+	}
+	set_reg(dec, dec->reg.cmd, cmd << 1);
+}
+
+/* do the codec needs an IT buffer ?*/
+static bool have_it(struct ruvd_decoder *dec)
+{
+	return dec->stream_type == RUVD_CODEC_H264_PERF ||
+		dec->stream_type == RUVD_CODEC_H265;
+}
+
+/* map the next available message/feedback/itscaling buffer */
+static void map_msg_fb_it_buf(struct ruvd_decoder *dec)
+{
+	struct rvid_buffer* buf;
+	uint8_t *ptr;
+
+	/* grab the current message/feedback buffer */
+	buf = &dec->msg_fb_it_buffers[dec->cur_buffer];
+
+	/* and map it for CPU access */
+	ptr = dec->ws->buffer_map(buf->res->buf, dec->cs, PIPE_TRANSFER_WRITE);
+
+	/* calc buffer offsets */
+	dec->msg = (struct ruvd_msg *)ptr;
+	memset(dec->msg, 0, sizeof(*dec->msg));
+
+	dec->fb = (uint32_t *)(ptr + FB_BUFFER_OFFSET);
+	if (have_it(dec))
+		dec->it = (uint8_t *)(ptr + FB_BUFFER_OFFSET + dec->fb_size);
+}
+
+/* unmap and send a message command to the VCPU */
+static void send_msg_buf(struct ruvd_decoder *dec)
+{
+	struct rvid_buffer* buf;
+
+	/* ignore the request if message/feedback buffer isn't mapped */
+	if (!dec->msg || !dec->fb)
+		return;
+
+	/* grab the current message buffer */
+	buf = &dec->msg_fb_it_buffers[dec->cur_buffer];
+
+	/* unmap the buffer */
+	dec->ws->buffer_unmap(buf->res->buf);
+	dec->msg = NULL;
+	dec->fb = NULL;
+	dec->it = NULL;
+
+
+	if (dec->sessionctx.res)
+		send_cmd(dec, RUVD_CMD_SESSION_CONTEXT_BUFFER,
+			 dec->sessionctx.res->buf, 0, RADEON_USAGE_READWRITE,
+			 RADEON_DOMAIN_VRAM);
+
+	/* and send it to the hardware */
+	send_cmd(dec, RUVD_CMD_MSG_BUFFER, buf->res->buf, 0,
+		 RADEON_USAGE_READ, RADEON_DOMAIN_GTT);
+}
+
+/* cycle to the next set of buffers */
+static void next_buffer(struct ruvd_decoder *dec)
+{
+	++dec->cur_buffer;
+	dec->cur_buffer %= NUM_BUFFERS;
+}
+
+/* convert the profile into something UVD understands */
+static uint32_t profile2stream_type(struct ruvd_decoder *dec, unsigned family)
+{
+	switch (u_reduce_video_profile(dec->base.profile)) {
+	case PIPE_VIDEO_FORMAT_MPEG4_AVC:
+		return (family >= CHIP_TONGA) ?
+			RUVD_CODEC_H264_PERF : RUVD_CODEC_H264;
+
+	case PIPE_VIDEO_FORMAT_VC1:
+		return RUVD_CODEC_VC1;
+
+	case PIPE_VIDEO_FORMAT_MPEG12:
+		return RUVD_CODEC_MPEG2;
+
+	case PIPE_VIDEO_FORMAT_MPEG4:
+		return RUVD_CODEC_MPEG4;
+
+	case PIPE_VIDEO_FORMAT_HEVC:
+		return RUVD_CODEC_H265;
+
+	case PIPE_VIDEO_FORMAT_JPEG:
+		return RUVD_CODEC_MJPEG;
+
+	default:
+		assert(0);
+		return 0;
+	}
+}
+
+static unsigned calc_ctx_size_h264_perf(struct ruvd_decoder *dec)
+{
+	unsigned width_in_mb, height_in_mb, ctx_size;
+	unsigned width = align(dec->base.width, VL_MACROBLOCK_WIDTH);
+	unsigned height = align(dec->base.height, VL_MACROBLOCK_HEIGHT);
+
+	unsigned max_references = dec->base.max_references + 1;
+
+	// picture width & height in 16 pixel units
+	width_in_mb = width / VL_MACROBLOCK_WIDTH;
+	height_in_mb = align(height / VL_MACROBLOCK_HEIGHT, 2);
+
+	if (!dec->use_legacy) {
+		unsigned fs_in_mb = width_in_mb * height_in_mb;
+		unsigned num_dpb_buffer;
+		switch(dec->base.level) {
+		case 30:
+			num_dpb_buffer = 8100 / fs_in_mb;
+			break;
+		case 31:
+			num_dpb_buffer = 18000 / fs_in_mb;
+			break;
+		case 32:
+			num_dpb_buffer = 20480 / fs_in_mb;
+			break;
+		case 41:
+			num_dpb_buffer = 32768 / fs_in_mb;
+			break;
+		case 42:
+			num_dpb_buffer = 34816 / fs_in_mb;
+			break;
+		case 50:
+			num_dpb_buffer = 110400 / fs_in_mb;
+			break;
+		case 51:
+			num_dpb_buffer = 184320 / fs_in_mb;
+			break;
+		default:
+			num_dpb_buffer = 184320 / fs_in_mb;
+			break;
+		}
+		num_dpb_buffer++;
+		max_references = MAX2(MIN2(NUM_H264_REFS, num_dpb_buffer), max_references);
+		ctx_size = max_references * align(width_in_mb * height_in_mb  * 192, 256);
+	} else {
+		// the firmware seems to always assume a minimum of ref frames
+		max_references = MAX2(NUM_H264_REFS, max_references);
+		// macroblock context buffer
+		ctx_size = align(width_in_mb * height_in_mb * max_references * 192, 256);
+	}
+
+	return ctx_size;
+}
+
+static unsigned calc_ctx_size_h265_main(struct ruvd_decoder *dec)
+{
+	unsigned width = align(dec->base.width, VL_MACROBLOCK_WIDTH);
+	unsigned height = align(dec->base.height, VL_MACROBLOCK_HEIGHT);
+
+	unsigned max_references = dec->base.max_references + 1;
+
+	if (dec->base.width * dec->base.height >= 4096*2000)
+		max_references = MAX2(max_references, 8);
+	else
+		max_references = MAX2(max_references, 17);
+
+	width = align (width, 16);
+	height = align (height, 16);
+	return ((width + 255) / 16) * ((height + 255) / 16) * 16 * max_references + 52 * 1024;
+}
+
+static unsigned calc_ctx_size_h265_main10(struct ruvd_decoder *dec, struct pipe_h265_picture_desc *pic)
+{
+	unsigned block_size, log2_ctb_size, width_in_ctb, height_in_ctb, num_16x16_block_per_ctb;
+	unsigned context_buffer_size_per_ctb_row, cm_buffer_size, max_mb_address, db_left_tile_pxl_size;
+	unsigned db_left_tile_ctx_size = 4096 / 16 * (32 + 16 * 4);
+
+	unsigned width = align(dec->base.width, VL_MACROBLOCK_WIDTH);
+	unsigned height = align(dec->base.height, VL_MACROBLOCK_HEIGHT);
+	unsigned coeff_10bit = (pic->pps->sps->bit_depth_luma_minus8 || pic->pps->sps->bit_depth_chroma_minus8) ? 2 : 1;
+
+	unsigned max_references = dec->base.max_references + 1;
+
+	if (dec->base.width * dec->base.height >= 4096*2000)
+		max_references = MAX2(max_references, 8);
+	else
+		max_references = MAX2(max_references, 17);
+
+	block_size = (1 << (pic->pps->sps->log2_min_luma_coding_block_size_minus3 + 3));
+	log2_ctb_size = block_size + pic->pps->sps->log2_diff_max_min_luma_coding_block_size;
+
+	width_in_ctb = (width + ((1 << log2_ctb_size) - 1)) >> log2_ctb_size;
+	height_in_ctb = (height + ((1 << log2_ctb_size) - 1)) >> log2_ctb_size;
+
+	num_16x16_block_per_ctb = ((1 << log2_ctb_size) >> 4) * ((1 << log2_ctb_size) >> 4);
+	context_buffer_size_per_ctb_row = align(width_in_ctb * num_16x16_block_per_ctb * 16, 256);
+	max_mb_address = (unsigned) ceil(height * 8 / 2048.0);
+
+	cm_buffer_size = max_references * context_buffer_size_per_ctb_row * height_in_ctb;
+	db_left_tile_pxl_size = coeff_10bit * (max_mb_address * 2 * 2048 + 1024);
+
+	return cm_buffer_size + db_left_tile_ctx_size + db_left_tile_pxl_size;
+}
+
+static unsigned get_db_pitch_alignment(struct ruvd_decoder *dec)
+{
+	if (((struct r600_common_screen*)dec->screen)->family < CHIP_VEGA10)
+		return 16;
+	else
+		return 32;
+}
+
+/* calculate size of reference picture buffer */
+static unsigned calc_dpb_size(struct ruvd_decoder *dec)
+{
+	unsigned width_in_mb, height_in_mb, image_size, dpb_size;
+
+	// always align them to MB size for dpb calculation
+	unsigned width = align(dec->base.width, VL_MACROBLOCK_WIDTH);
+	unsigned height = align(dec->base.height, VL_MACROBLOCK_HEIGHT);
+
+	// always one more for currently decoded picture
+	unsigned max_references = dec->base.max_references + 1;
+
+	// aligned size of a single frame
+	image_size = align(width, get_db_pitch_alignment(dec)) * height;
+	image_size += image_size / 2;
+	image_size = align(image_size, 1024);
+
+	// picture width & height in 16 pixel units
+	width_in_mb = width / VL_MACROBLOCK_WIDTH;
+	height_in_mb = align(height / VL_MACROBLOCK_HEIGHT, 2);
+
+	switch (u_reduce_video_profile(dec->base.profile)) {
+	case PIPE_VIDEO_FORMAT_MPEG4_AVC: {
+		if (!dec->use_legacy) {
+			unsigned fs_in_mb = width_in_mb * height_in_mb;
+			unsigned alignment = 64, num_dpb_buffer;
+
+			if (dec->stream_type == RUVD_CODEC_H264_PERF)
+				alignment = 256;
+			switch(dec->base.level) {
+			case 30:
+				num_dpb_buffer = 8100 / fs_in_mb;
+				break;
+			case 31:
+				num_dpb_buffer = 18000 / fs_in_mb;
+				break;
+			case 32:
+				num_dpb_buffer = 20480 / fs_in_mb;
+				break;
+			case 41:
+				num_dpb_buffer = 32768 / fs_in_mb;
+				break;
+			case 42:
+				num_dpb_buffer = 34816 / fs_in_mb;
+				break;
+			case 50:
+				num_dpb_buffer = 110400 / fs_in_mb;
+				break;
+			case 51:
+				num_dpb_buffer = 184320 / fs_in_mb;
+				break;
+			default:
+				num_dpb_buffer = 184320 / fs_in_mb;
+				break;
+			}
+			num_dpb_buffer++;
+			max_references = MAX2(MIN2(NUM_H264_REFS, num_dpb_buffer), max_references);
+			dpb_size = image_size * max_references;
+			if ((dec->stream_type != RUVD_CODEC_H264_PERF) ||
+			    (((struct r600_common_screen*)dec->screen)->family < CHIP_POLARIS10)) {
+				dpb_size += max_references * align(width_in_mb * height_in_mb  * 192, alignment);
+				dpb_size += align(width_in_mb * height_in_mb * 32, alignment);
+			}
+		} else {
+			// the firmware seems to allways assume a minimum of ref frames
+			max_references = MAX2(NUM_H264_REFS, max_references);
+			// reference picture buffer
+			dpb_size = image_size * max_references;
+			if ((dec->stream_type != RUVD_CODEC_H264_PERF) ||
+			    (((struct r600_common_screen*)dec->screen)->family < CHIP_POLARIS10)) {
+				// macroblock context buffer
+				dpb_size += width_in_mb * height_in_mb * max_references * 192;
+				// IT surface buffer
+				dpb_size += width_in_mb * height_in_mb * 32;
+			}
+		}
+		break;
+	}
+
+	case PIPE_VIDEO_FORMAT_HEVC:
+		if (dec->base.width * dec->base.height >= 4096*2000)
+			max_references = MAX2(max_references, 8);
+		else
+			max_references = MAX2(max_references, 17);
+
+		width = align (width, 16);
+		height = align (height, 16);
+		if (dec->base.profile == PIPE_VIDEO_PROFILE_HEVC_MAIN_10)
+			dpb_size = align((align(width, get_db_pitch_alignment(dec)) * height * 9) / 4, 256) * max_references;
+		else
+			dpb_size = align((align(width, get_db_pitch_alignment(dec)) * height * 3) / 2, 256) * max_references;
+		break;
+
+	case PIPE_VIDEO_FORMAT_VC1:
+		// the firmware seems to allways assume a minimum of ref frames
+		max_references = MAX2(NUM_VC1_REFS, max_references);
+
+		// reference picture buffer
+		dpb_size = image_size * max_references;
+
+		// CONTEXT_BUFFER
+		dpb_size += width_in_mb * height_in_mb * 128;
+
+		// IT surface buffer
+		dpb_size += width_in_mb * 64;
+
+		// DB surface buffer
+		dpb_size += width_in_mb * 128;
+
+		// BP
+		dpb_size += align(MAX2(width_in_mb, height_in_mb) * 7 * 16, 64);
+		break;
+
+	case PIPE_VIDEO_FORMAT_MPEG12:
+		// reference picture buffer, must be big enough for all frames
+		dpb_size = image_size * NUM_MPEG2_REFS;
+		break;
+
+	case PIPE_VIDEO_FORMAT_MPEG4:
+		// reference picture buffer
+		dpb_size = image_size * max_references;
+
+		// CM
+		dpb_size += width_in_mb * height_in_mb * 64;
+
+		// IT surface buffer
+		dpb_size += align(width_in_mb * height_in_mb * 32, 64);
+
+		dpb_size = MAX2(dpb_size, 30 * 1024 * 1024);
+		break;
+
+	case PIPE_VIDEO_FORMAT_JPEG:
+		dpb_size = 0;
+		break;
+
+	default:
+		// something is missing here
+		assert(0);
+
+		// at least use a sane default value
+		dpb_size = 32 * 1024 * 1024;
+		break;
+	}
+	return dpb_size;
+}
+
+/* free associated data in the video buffer callback */
+static void ruvd_destroy_associated_data(void *data)
+{
+	/* NOOP, since we only use an intptr */
+}
+
+/* get h264 specific message bits */
+static struct ruvd_h264 get_h264_msg(struct ruvd_decoder *dec, struct pipe_h264_picture_desc *pic)
+{
+	struct ruvd_h264 result;
+
+	memset(&result, 0, sizeof(result));
+	switch (pic->base.profile) {
+	case PIPE_VIDEO_PROFILE_MPEG4_AVC_BASELINE:
+	case PIPE_VIDEO_PROFILE_MPEG4_AVC_CONSTRAINED_BASELINE:
+		result.profile = RUVD_H264_PROFILE_BASELINE;
+		break;
+
+	case PIPE_VIDEO_PROFILE_MPEG4_AVC_MAIN:
+		result.profile = RUVD_H264_PROFILE_MAIN;
+		break;
+
+	case PIPE_VIDEO_PROFILE_MPEG4_AVC_HIGH:
+		result.profile = RUVD_H264_PROFILE_HIGH;
+		break;
+
+	default:
+		assert(0);
+		break;
+	}
+
+	result.level = dec->base.level;
+
+	result.sps_info_flags = 0;
+	result.sps_info_flags |= pic->pps->sps->direct_8x8_inference_flag << 0;
+	result.sps_info_flags |= pic->pps->sps->mb_adaptive_frame_field_flag << 1;
+	result.sps_info_flags |= pic->pps->sps->frame_mbs_only_flag << 2;
+	result.sps_info_flags |= pic->pps->sps->delta_pic_order_always_zero_flag << 3;
+
+	result.bit_depth_luma_minus8 = pic->pps->sps->bit_depth_luma_minus8;
+	result.bit_depth_chroma_minus8 = pic->pps->sps->bit_depth_chroma_minus8;
+	result.log2_max_frame_num_minus4 = pic->pps->sps->log2_max_frame_num_minus4;
+	result.pic_order_cnt_type = pic->pps->sps->pic_order_cnt_type;
+	result.log2_max_pic_order_cnt_lsb_minus4 = pic->pps->sps->log2_max_pic_order_cnt_lsb_minus4;
+
+	switch (dec->base.chroma_format) {
+	case PIPE_VIDEO_CHROMA_FORMAT_NONE:
+		/* TODO: assert? */
+		break;
+	case PIPE_VIDEO_CHROMA_FORMAT_400:
+		result.chroma_format = 0;
+		break;
+	case PIPE_VIDEO_CHROMA_FORMAT_420:
+		result.chroma_format = 1;
+		break;
+	case PIPE_VIDEO_CHROMA_FORMAT_422:
+		result.chroma_format = 2;
+		break;
+	case PIPE_VIDEO_CHROMA_FORMAT_444:
+		result.chroma_format = 3;
+		break;
+	}
+
+	result.pps_info_flags = 0;
+	result.pps_info_flags |= pic->pps->transform_8x8_mode_flag << 0;
+	result.pps_info_flags |= pic->pps->redundant_pic_cnt_present_flag << 1;
+	result.pps_info_flags |= pic->pps->constrained_intra_pred_flag << 2;
+	result.pps_info_flags |= pic->pps->deblocking_filter_control_present_flag << 3;
+	result.pps_info_flags |= pic->pps->weighted_bipred_idc << 4;
+	result.pps_info_flags |= pic->pps->weighted_pred_flag << 6;
+	result.pps_info_flags |= pic->pps->bottom_field_pic_order_in_frame_present_flag << 7;
+	result.pps_info_flags |= pic->pps->entropy_coding_mode_flag << 8;
+
+	result.num_slice_groups_minus1 = pic->pps->num_slice_groups_minus1;
+	result.slice_group_map_type = pic->pps->slice_group_map_type;
+	result.slice_group_change_rate_minus1 = pic->pps->slice_group_change_rate_minus1;
+	result.pic_init_qp_minus26 = pic->pps->pic_init_qp_minus26;
+	result.chroma_qp_index_offset = pic->pps->chroma_qp_index_offset;
+	result.second_chroma_qp_index_offset = pic->pps->second_chroma_qp_index_offset;
+
+	memcpy(result.scaling_list_4x4, pic->pps->ScalingList4x4, 6*16);
+	memcpy(result.scaling_list_8x8, pic->pps->ScalingList8x8, 2*64);
+
+	if (dec->stream_type == RUVD_CODEC_H264_PERF) {
+		memcpy(dec->it, result.scaling_list_4x4, 6*16);
+		memcpy((dec->it + 96), result.scaling_list_8x8, 2*64);
+	}
+
+	result.num_ref_frames = pic->num_ref_frames;
+
+	result.num_ref_idx_l0_active_minus1 = pic->num_ref_idx_l0_active_minus1;
+	result.num_ref_idx_l1_active_minus1 = pic->num_ref_idx_l1_active_minus1;
+
+	result.frame_num = pic->frame_num;
+	memcpy(result.frame_num_list, pic->frame_num_list, 4*16);
+	result.curr_field_order_cnt_list[0] = pic->field_order_cnt[0];
+	result.curr_field_order_cnt_list[1] = pic->field_order_cnt[1];
+	memcpy(result.field_order_cnt_list, pic->field_order_cnt_list, 4*16*2);
+
+	result.decoded_pic_idx = pic->frame_num;
+
+	return result;
+}
+
+/* get h265 specific message bits */
+static struct ruvd_h265 get_h265_msg(struct ruvd_decoder *dec, struct pipe_video_buffer *target,
+				     struct pipe_h265_picture_desc *pic)
+{
+	struct ruvd_h265 result;
+	unsigned i;
+
+	memset(&result, 0, sizeof(result));
+
+	result.sps_info_flags = 0;
+	result.sps_info_flags |= pic->pps->sps->scaling_list_enabled_flag << 0;
+	result.sps_info_flags |= pic->pps->sps->amp_enabled_flag << 1;
+	result.sps_info_flags |= pic->pps->sps->sample_adaptive_offset_enabled_flag << 2;
+	result.sps_info_flags |= pic->pps->sps->pcm_enabled_flag << 3;
+	result.sps_info_flags |= pic->pps->sps->pcm_loop_filter_disabled_flag << 4;
+	result.sps_info_flags |= pic->pps->sps->long_term_ref_pics_present_flag << 5;
+	result.sps_info_flags |= pic->pps->sps->sps_temporal_mvp_enabled_flag << 6;
+	result.sps_info_flags |= pic->pps->sps->strong_intra_smoothing_enabled_flag << 7;
+	result.sps_info_flags |= pic->pps->sps->separate_colour_plane_flag << 8;
+	if (((struct r600_common_screen*)dec->screen)->family == CHIP_CARRIZO)
+		result.sps_info_flags |= 1 << 9;
+	if (pic->UseRefPicList == true)
+		result.sps_info_flags |= 1 << 10;
+
+	result.chroma_format = pic->pps->sps->chroma_format_idc;
+	result.bit_depth_luma_minus8 = pic->pps->sps->bit_depth_luma_minus8;
+	result.bit_depth_chroma_minus8 = pic->pps->sps->bit_depth_chroma_minus8;
+	result.log2_max_pic_order_cnt_lsb_minus4 = pic->pps->sps->log2_max_pic_order_cnt_lsb_minus4;
+	result.sps_max_dec_pic_buffering_minus1 = pic->pps->sps->sps_max_dec_pic_buffering_minus1;
+	result.log2_min_luma_coding_block_size_minus3 = pic->pps->sps->log2_min_luma_coding_block_size_minus3;
+	result.log2_diff_max_min_luma_coding_block_size = pic->pps->sps->log2_diff_max_min_luma_coding_block_size;
+	result.log2_min_transform_block_size_minus2 = pic->pps->sps->log2_min_transform_block_size_minus2;
+	result.log2_diff_max_min_transform_block_size = pic->pps->sps->log2_diff_max_min_transform_block_size;
+	result.max_transform_hierarchy_depth_inter = pic->pps->sps->max_transform_hierarchy_depth_inter;
+	result.max_transform_hierarchy_depth_intra = pic->pps->sps->max_transform_hierarchy_depth_intra;
+	result.pcm_sample_bit_depth_luma_minus1 = pic->pps->sps->pcm_sample_bit_depth_luma_minus1;
+	result.pcm_sample_bit_depth_chroma_minus1 = pic->pps->sps->pcm_sample_bit_depth_chroma_minus1;
+	result.log2_min_pcm_luma_coding_block_size_minus3 = pic->pps->sps->log2_min_pcm_luma_coding_block_size_minus3;
+	result.log2_diff_max_min_pcm_luma_coding_block_size = pic->pps->sps->log2_diff_max_min_pcm_luma_coding_block_size;
+	result.num_short_term_ref_pic_sets = pic->pps->sps->num_short_term_ref_pic_sets;
+
+	result.pps_info_flags = 0;
+	result.pps_info_flags |= pic->pps->dependent_slice_segments_enabled_flag << 0;
+	result.pps_info_flags |= pic->pps->output_flag_present_flag << 1;
+	result.pps_info_flags |= pic->pps->sign_data_hiding_enabled_flag << 2;
+	result.pps_info_flags |= pic->pps->cabac_init_present_flag << 3;
+	result.pps_info_flags |= pic->pps->constrained_intra_pred_flag << 4;
+	result.pps_info_flags |= pic->pps->transform_skip_enabled_flag << 5;
+	result.pps_info_flags |= pic->pps->cu_qp_delta_enabled_flag << 6;
+	result.pps_info_flags |= pic->pps->pps_slice_chroma_qp_offsets_present_flag << 7;
+	result.pps_info_flags |= pic->pps->weighted_pred_flag << 8;
+	result.pps_info_flags |= pic->pps->weighted_bipred_flag << 9;
+	result.pps_info_flags |= pic->pps->transquant_bypass_enabled_flag << 10;
+	result.pps_info_flags |= pic->pps->tiles_enabled_flag << 11;
+	result.pps_info_flags |= pic->pps->entropy_coding_sync_enabled_flag << 12;
+	result.pps_info_flags |= pic->pps->uniform_spacing_flag << 13;
+	result.pps_info_flags |= pic->pps->loop_filter_across_tiles_enabled_flag << 14;
+	result.pps_info_flags |= pic->pps->pps_loop_filter_across_slices_enabled_flag << 15;
+	result.pps_info_flags |= pic->pps->deblocking_filter_override_enabled_flag << 16;
+	result.pps_info_flags |= pic->pps->pps_deblocking_filter_disabled_flag << 17;
+	result.pps_info_flags |= pic->pps->lists_modification_present_flag << 18;
+	result.pps_info_flags |= pic->pps->slice_segment_header_extension_present_flag << 19;
+	//result.pps_info_flags |= pic->pps->deblocking_filter_control_present_flag; ???
+
+	result.num_extra_slice_header_bits = pic->pps->num_extra_slice_header_bits;
+	result.num_long_term_ref_pic_sps = pic->pps->sps->num_long_term_ref_pics_sps;
+	result.num_ref_idx_l0_default_active_minus1 = pic->pps->num_ref_idx_l0_default_active_minus1;
+	result.num_ref_idx_l1_default_active_minus1 = pic->pps->num_ref_idx_l1_default_active_minus1;
+	result.pps_cb_qp_offset = pic->pps->pps_cb_qp_offset;
+	result.pps_cr_qp_offset = pic->pps->pps_cr_qp_offset;
+	result.pps_beta_offset_div2 = pic->pps->pps_beta_offset_div2;
+	result.pps_tc_offset_div2 = pic->pps->pps_tc_offset_div2;
+	result.diff_cu_qp_delta_depth = pic->pps->diff_cu_qp_delta_depth;
+	result.num_tile_columns_minus1 = pic->pps->num_tile_columns_minus1;
+	result.num_tile_rows_minus1 = pic->pps->num_tile_rows_minus1;
+	result.log2_parallel_merge_level_minus2 = pic->pps->log2_parallel_merge_level_minus2;
+	result.init_qp_minus26 = pic->pps->init_qp_minus26;
+
+	for (i = 0; i < 19; ++i)
+		result.column_width_minus1[i] = pic->pps->column_width_minus1[i];
+
+	for (i = 0; i < 21; ++i)
+		result.row_height_minus1[i] = pic->pps->row_height_minus1[i];
+
+	result.num_delta_pocs_ref_rps_idx = pic->NumDeltaPocsOfRefRpsIdx;
+	result.curr_idx = pic->CurrPicOrderCntVal;
+	result.curr_poc = pic->CurrPicOrderCntVal;
+
+	vl_video_buffer_set_associated_data(target, &dec->base,
+					    (void *)(uintptr_t)pic->CurrPicOrderCntVal,
+					    &ruvd_destroy_associated_data);
+
+	for (i = 0; i < 16; ++i) {
+		struct pipe_video_buffer *ref = pic->ref[i];
+		uintptr_t ref_pic = 0;
+
+		result.poc_list[i] = pic->PicOrderCntVal[i];
+
+		if (ref)
+			ref_pic = (uintptr_t)vl_video_buffer_get_associated_data(ref, &dec->base);
+		else
+			ref_pic = 0x7F;
+		result.ref_pic_list[i] = ref_pic;
+	}
+
+	for (i = 0; i < 8; ++i) {
+		result.ref_pic_set_st_curr_before[i] = 0xFF;
+		result.ref_pic_set_st_curr_after[i] = 0xFF;
+		result.ref_pic_set_lt_curr[i] = 0xFF;
+	}
+
+	for (i = 0; i < pic->NumPocStCurrBefore; ++i)
+		result.ref_pic_set_st_curr_before[i] = pic->RefPicSetStCurrBefore[i];
+
+	for (i = 0; i < pic->NumPocStCurrAfter; ++i)
+		result.ref_pic_set_st_curr_after[i] = pic->RefPicSetStCurrAfter[i];
+
+	for (i = 0; i < pic->NumPocLtCurr; ++i)
+		result.ref_pic_set_lt_curr[i] = pic->RefPicSetLtCurr[i];
+
+	for (i = 0; i < 6; ++i)
+		result.ucScalingListDCCoefSizeID2[i] = pic->pps->sps->ScalingListDCCoeff16x16[i];
+
+	for (i = 0; i < 2; ++i)
+		result.ucScalingListDCCoefSizeID3[i] = pic->pps->sps->ScalingListDCCoeff32x32[i];
+
+	memcpy(dec->it, pic->pps->sps->ScalingList4x4, 6 * 16);
+	memcpy(dec->it + 96, pic->pps->sps->ScalingList8x8, 6 * 64);
+	memcpy(dec->it + 480, pic->pps->sps->ScalingList16x16, 6 * 64);
+	memcpy(dec->it + 864, pic->pps->sps->ScalingList32x32, 2 * 64);
+
+	for (i = 0 ; i < 2 ; i++) {
+		for (int j = 0 ; j < 15 ; j++)
+			result.direct_reflist[i][j] = pic->RefPicList[i][j];
+	}
+
+	if (pic->base.profile == PIPE_VIDEO_PROFILE_HEVC_MAIN_10) {
+		if (target->buffer_format == PIPE_FORMAT_P016) {
+			result.p010_mode = 1;
+			result.msb_mode = 1;
+		} else {
+			result.luma_10to8 = 5;
+			result.chroma_10to8 = 5;
+			result.sclr_luma10to8 = 4;
+			result.sclr_chroma10to8 = 4;
+		}
+	}
+
+	/* TODO
+	result.highestTid;
+	result.isNonRef;
+
+	IDRPicFlag;
+	RAPPicFlag;
+	NumPocTotalCurr;
+	NumShortTermPictureSliceHeaderBits;
+	NumLongTermPictureSliceHeaderBits;
+
+	IsLongTerm[16];
+	*/
+
+	return result;
+}
+
+/* get vc1 specific message bits */
+static struct ruvd_vc1 get_vc1_msg(struct pipe_vc1_picture_desc *pic)
+{
+	struct ruvd_vc1 result;
+
+	memset(&result, 0, sizeof(result));
+
+	switch(pic->base.profile) {
+	case PIPE_VIDEO_PROFILE_VC1_SIMPLE:
+		result.profile = RUVD_VC1_PROFILE_SIMPLE;
+		result.level = 1;
+		break;
+
+	case PIPE_VIDEO_PROFILE_VC1_MAIN:
+		result.profile = RUVD_VC1_PROFILE_MAIN;
+		result.level = 2;
+		break;
+
+	case PIPE_VIDEO_PROFILE_VC1_ADVANCED:
+		result.profile = RUVD_VC1_PROFILE_ADVANCED;
+		result.level = 4;
+		break;
+
+	default:
+		assert(0);
+	}
+
+	/* fields common for all profiles */
+	result.sps_info_flags |= pic->postprocflag << 7;
+	result.sps_info_flags |= pic->pulldown << 6;
+	result.sps_info_flags |= pic->interlace << 5;
+	result.sps_info_flags |= pic->tfcntrflag << 4;
+	result.sps_info_flags |= pic->finterpflag << 3;
+	result.sps_info_flags |= pic->psf << 1;
+
+	result.pps_info_flags |= pic->range_mapy_flag << 31;
+	result.pps_info_flags |= pic->range_mapy << 28;
+	result.pps_info_flags |= pic->range_mapuv_flag << 27;
+	result.pps_info_flags |= pic->range_mapuv << 24;
+	result.pps_info_flags |= pic->multires << 21;
+	result.pps_info_flags |= pic->maxbframes << 16;
+	result.pps_info_flags |= pic->overlap << 11;
+	result.pps_info_flags |= pic->quantizer << 9;
+	result.pps_info_flags |= pic->panscan_flag << 7;
+	result.pps_info_flags |= pic->refdist_flag << 6;
+	result.pps_info_flags |= pic->vstransform << 0;
+
+	/* some fields only apply to main/advanced profile */
+	if (pic->base.profile != PIPE_VIDEO_PROFILE_VC1_SIMPLE) {
+		result.pps_info_flags |= pic->syncmarker << 20;
+		result.pps_info_flags |= pic->rangered << 19;
+		result.pps_info_flags |= pic->loopfilter << 5;
+		result.pps_info_flags |= pic->fastuvmc << 4;
+		result.pps_info_flags |= pic->extended_mv << 3;
+		result.pps_info_flags |= pic->extended_dmv << 8;
+		result.pps_info_flags |= pic->dquant << 1;
+	}
+
+	result.chroma_format = 1;
+
+#if 0
+//(((unsigned int)(pPicParams->advance.reserved1))        << SPS_INFO_VC1_RESERVED_SHIFT)
+uint32_t 	slice_count
+uint8_t 	picture_type
+uint8_t 	frame_coding_mode
+uint8_t 	deblockEnable
+uint8_t 	pquant
+#endif
+
+	return result;
+}
+
+/* extract the frame number from a referenced video buffer */
+static uint32_t get_ref_pic_idx(struct ruvd_decoder *dec, struct pipe_video_buffer *ref)
+{
+	uint32_t min = MAX2(dec->frame_number, NUM_MPEG2_REFS) - NUM_MPEG2_REFS;
+	uint32_t max = MAX2(dec->frame_number, 1) - 1;
+	uintptr_t frame;
+
+	/* seems to be the most sane fallback */
+	if (!ref)
+		return max;
+
+	/* get the frame number from the associated data */
+	frame = (uintptr_t)vl_video_buffer_get_associated_data(ref, &dec->base);
+
+	/* limit the frame number to a valid range */
+	return MAX2(MIN2(frame, max), min);
+}
+
+/* get mpeg2 specific msg bits */
+static struct ruvd_mpeg2 get_mpeg2_msg(struct ruvd_decoder *dec,
+				       struct pipe_mpeg12_picture_desc *pic)
+{
+	const int *zscan = pic->alternate_scan ? vl_zscan_alternate : vl_zscan_normal;
+	struct ruvd_mpeg2 result;
+	unsigned i;
+
+	memset(&result, 0, sizeof(result));
+	result.decoded_pic_idx = dec->frame_number;
+	for (i = 0; i < 2; ++i)
+		result.ref_pic_idx[i] = get_ref_pic_idx(dec, pic->ref[i]);
+
+	result.load_intra_quantiser_matrix = 1;
+	result.load_nonintra_quantiser_matrix = 1;
+
+	for (i = 0; i < 64; ++i) {
+		result.intra_quantiser_matrix[i] = pic->intra_matrix[zscan[i]];
+		result.nonintra_quantiser_matrix[i] = pic->non_intra_matrix[zscan[i]];
+	}
+
+	result.profile_and_level_indication = 0;
+	result.chroma_format = 0x1;
+
+	result.picture_coding_type = pic->picture_coding_type;
+	result.f_code[0][0] = pic->f_code[0][0] + 1;
+	result.f_code[0][1] = pic->f_code[0][1] + 1;
+	result.f_code[1][0] = pic->f_code[1][0] + 1;
+	result.f_code[1][1] = pic->f_code[1][1] + 1;
+	result.intra_dc_precision = pic->intra_dc_precision;
+	result.pic_structure = pic->picture_structure;
+	result.top_field_first = pic->top_field_first;
+	result.frame_pred_frame_dct = pic->frame_pred_frame_dct;
+	result.concealment_motion_vectors = pic->concealment_motion_vectors;
+	result.q_scale_type = pic->q_scale_type;
+	result.intra_vlc_format = pic->intra_vlc_format;
+	result.alternate_scan = pic->alternate_scan;
+
+	return result;
+}
+
+/* get mpeg4 specific msg bits */
+static struct ruvd_mpeg4 get_mpeg4_msg(struct ruvd_decoder *dec,
+				       struct pipe_mpeg4_picture_desc *pic)
+{
+	struct ruvd_mpeg4 result;
+	unsigned i;
+
+	memset(&result, 0, sizeof(result));
+	result.decoded_pic_idx = dec->frame_number;
+	for (i = 0; i < 2; ++i)
+		result.ref_pic_idx[i] = get_ref_pic_idx(dec, pic->ref[i]);
+
+	result.variant_type = 0;
+	result.profile_and_level_indication = 0xF0; // ASP Level0
+
+	result.video_object_layer_verid = 0x5; // advanced simple
+	result.video_object_layer_shape = 0x0; // rectangular
+
+	result.video_object_layer_width = dec->base.width;
+	result.video_object_layer_height = dec->base.height;
+
+	result.vop_time_increment_resolution = pic->vop_time_increment_resolution;
+
+	result.flags |= pic->short_video_header << 0;
+	//result.flags |= obmc_disable << 1;
+	result.flags |= pic->interlaced << 2;
+        result.flags |= 1 << 3; // load_intra_quant_mat
+	result.flags |= 1 << 4; // load_nonintra_quant_mat
+	result.flags |= pic->quarter_sample << 5;
+	result.flags |= 1 << 6; // complexity_estimation_disable
+	result.flags |= pic->resync_marker_disable << 7;
+	//result.flags |= data_partitioned << 8;
+	//result.flags |= reversible_vlc << 9;
+	result.flags |= 0 << 10; // newpred_enable
+	result.flags |= 0 << 11; // reduced_resolution_vop_enable
+	//result.flags |= scalability << 12;
+	//result.flags |= is_object_layer_identifier << 13;
+	//result.flags |= fixed_vop_rate << 14;
+	//result.flags |= newpred_segment_type << 15;
+
+	result.quant_type = pic->quant_type;
+
+	for (i = 0; i < 64; ++i) {
+		result.intra_quant_mat[i] = pic->intra_matrix[vl_zscan_normal[i]];
+		result.nonintra_quant_mat[i] = pic->non_intra_matrix[vl_zscan_normal[i]];
+	}
+
+	/*
+	int32_t 	trd [2]
+	int32_t 	trb [2]
+	uint8_t 	vop_coding_type
+	uint8_t 	vop_fcode_forward
+	uint8_t 	vop_fcode_backward
+	uint8_t 	rounding_control
+	uint8_t 	alternate_vertical_scan_flag
+	uint8_t 	top_field_first
+	*/
+
+	return result;
+}
+
+static void get_mjpeg_slice_header(struct ruvd_decoder *dec, struct pipe_mjpeg_picture_desc *pic)
+{
+	int size = 0, saved_size, len_pos, i;
+	uint16_t *bs;
+	uint8_t *buf = dec->bs_ptr;
+
+	/* SOI */
+	buf[size++] = 0xff;
+	buf[size++] = 0xd8;
+
+	/* DQT */
+	buf[size++] = 0xff;
+	buf[size++] = 0xdb;
+
+	len_pos = size++;
+	size++;
+
+	for (i = 0; i < 4; ++i) {
+		if (pic->quantization_table.load_quantiser_table[i] == 0)
+			continue;
+
+		buf[size++] = i;
+		memcpy((buf + size), &pic->quantization_table.quantiser_table[i], 64);
+		size += 64;
+	}
+
+	bs = (uint16_t*)&buf[len_pos];
+	*bs = util_bswap16(size - 4);
+
+	saved_size = size;
+
+	/* DHT */
+	buf[size++] = 0xff;
+	buf[size++] = 0xc4;
+
+	len_pos = size++;
+	size++;
+
+	for (i = 0; i < 2; ++i) {
+		if (pic->huffman_table.load_huffman_table[i] == 0)
+			continue;
+
+		buf[size++] = 0x00 | i;
+		memcpy((buf + size), &pic->huffman_table.table[i].num_dc_codes, 16);
+		size += 16;
+		memcpy((buf + size), &pic->huffman_table.table[i].dc_values, 12);
+		size += 12;
+	}
+
+	for (i = 0; i < 2; ++i) {
+		if (pic->huffman_table.load_huffman_table[i] == 0)
+			continue;
+
+		buf[size++] = 0x10 | i;
+		memcpy((buf + size), &pic->huffman_table.table[i].num_ac_codes, 16);
+		size += 16;
+		memcpy((buf + size), &pic->huffman_table.table[i].ac_values, 162);
+		size += 162;
+	}
+
+	bs = (uint16_t*)&buf[len_pos];
+	*bs = util_bswap16(size - saved_size - 2);
+
+	saved_size = size;
+
+	/* DRI */
+	if (pic->slice_parameter.restart_interval) {
+		buf[size++] = 0xff;
+		buf[size++] = 0xdd;
+		buf[size++] = 0x00;
+		buf[size++] = 0x04;
+		bs = (uint16_t*)&buf[size++];
+		*bs = util_bswap16(pic->slice_parameter.restart_interval);
+		saved_size = ++size;
+	}
+
+	/* SOF */
+	buf[size++] = 0xff;
+	buf[size++] = 0xc0;
+
+	len_pos = size++;
+	size++;
+
+	buf[size++] = 0x08;
+
+	bs = (uint16_t*)&buf[size++];
+	*bs = util_bswap16(pic->picture_parameter.picture_height);
+	size++;
+
+	bs = (uint16_t*)&buf[size++];
+	*bs = util_bswap16(pic->picture_parameter.picture_width);
+	size++;
+
+	buf[size++] = pic->picture_parameter.num_components;
+
+	for (i = 0; i < pic->picture_parameter.num_components; ++i) {
+		buf[size++] = pic->picture_parameter.components[i].component_id;
+		buf[size++] = pic->picture_parameter.components[i].h_sampling_factor << 4 |
+			pic->picture_parameter.components[i].v_sampling_factor;
+		buf[size++] = pic->picture_parameter.components[i].quantiser_table_selector;
+	}
+
+	bs = (uint16_t*)&buf[len_pos];
+	*bs = util_bswap16(size - saved_size - 2);
+
+	saved_size = size;
+
+	/* SOS */
+	buf[size++] = 0xff;
+	buf[size++] = 0xda;
+
+	len_pos = size++;
+	size++;
+
+	buf[size++] = pic->slice_parameter.num_components;
+
+	for (i = 0; i < pic->slice_parameter.num_components; ++i) {
+		buf[size++] = pic->slice_parameter.components[i].component_selector;
+		buf[size++] = pic->slice_parameter.components[i].dc_table_selector << 4 |
+			pic->slice_parameter.components[i].ac_table_selector;
+	}
+
+	buf[size++] = 0x00;
+	buf[size++] = 0x3f;
+	buf[size++] = 0x00;
+
+	bs = (uint16_t*)&buf[len_pos];
+	*bs = util_bswap16(size - saved_size - 2);
+
+	dec->bs_ptr += size;
+	dec->bs_size += size;
+}
+
+/**
+ * destroy this video decoder
+ */
+static void ruvd_destroy(struct pipe_video_codec *decoder)
+{
+	struct ruvd_decoder *dec = (struct ruvd_decoder*)decoder;
+	unsigned i;
+
+	assert(decoder);
+
+	map_msg_fb_it_buf(dec);
+	dec->msg->size = sizeof(*dec->msg);
+	dec->msg->msg_type = RUVD_MSG_DESTROY;
+	dec->msg->stream_handle = dec->stream_handle;
+	send_msg_buf(dec);
+
+	flush(dec, 0);
+
+	dec->ws->cs_destroy(dec->cs);
+
+	for (i = 0; i < NUM_BUFFERS; ++i) {
+		rvid_destroy_buffer(&dec->msg_fb_it_buffers[i]);
+		rvid_destroy_buffer(&dec->bs_buffers[i]);
+	}
+
+	rvid_destroy_buffer(&dec->dpb);
+	rvid_destroy_buffer(&dec->ctx);
+	rvid_destroy_buffer(&dec->sessionctx);
+
+	FREE(dec);
+}
+
+/**
+ * start decoding of a new frame
+ */
+static void ruvd_begin_frame(struct pipe_video_codec *decoder,
+			     struct pipe_video_buffer *target,
+			     struct pipe_picture_desc *picture)
+{
+	struct ruvd_decoder *dec = (struct ruvd_decoder*)decoder;
+	uintptr_t frame;
+
+	assert(decoder);
+
+	frame = ++dec->frame_number;
+	vl_video_buffer_set_associated_data(target, decoder, (void *)frame,
+					    &ruvd_destroy_associated_data);
+
+	dec->bs_size = 0;
+	dec->bs_ptr = dec->ws->buffer_map(
+		dec->bs_buffers[dec->cur_buffer].res->buf,
+		dec->cs, PIPE_TRANSFER_WRITE);
+}
+
+/**
+ * decode a macroblock
+ */
+static void ruvd_decode_macroblock(struct pipe_video_codec *decoder,
+				   struct pipe_video_buffer *target,
+				   struct pipe_picture_desc *picture,
+				   const struct pipe_macroblock *macroblocks,
+				   unsigned num_macroblocks)
+{
+	/* not supported (yet) */
+	assert(0);
+}
+
+/**
+ * decode a bitstream
+ */
+static void ruvd_decode_bitstream(struct pipe_video_codec *decoder,
+				  struct pipe_video_buffer *target,
+				  struct pipe_picture_desc *picture,
+				  unsigned num_buffers,
+				  const void * const *buffers,
+				  const unsigned *sizes)
+{
+	struct ruvd_decoder *dec = (struct ruvd_decoder*)decoder;
+	enum pipe_video_format format = u_reduce_video_profile(picture->profile);
+	unsigned i;
+
+	assert(decoder);
+
+	if (!dec->bs_ptr)
+		return;
+
+	if (format == PIPE_VIDEO_FORMAT_JPEG)
+		get_mjpeg_slice_header(dec, (struct pipe_mjpeg_picture_desc*)picture);
+
+	for (i = 0; i < num_buffers; ++i) {
+		struct rvid_buffer *buf = &dec->bs_buffers[dec->cur_buffer];
+		unsigned new_size = dec->bs_size + sizes[i];
+
+		if (format == PIPE_VIDEO_FORMAT_JPEG)
+			new_size += 2; /* save for EOI */
+
+		if (new_size > buf->res->buf->size) {
+			dec->ws->buffer_unmap(buf->res->buf);
+			if (!rvid_resize_buffer(dec->screen, dec->cs, buf, new_size)) {
+				RVID_ERR("Can't resize bitstream buffer!");
+				return;
+			}
+
+			dec->bs_ptr = dec->ws->buffer_map(buf->res->buf, dec->cs,
+							  PIPE_TRANSFER_WRITE);
+			if (!dec->bs_ptr)
+				return;
+
+			dec->bs_ptr += dec->bs_size;
+		}
+
+		memcpy(dec->bs_ptr, buffers[i], sizes[i]);
+		dec->bs_size += sizes[i];
+		dec->bs_ptr += sizes[i];
+	}
+
+	if (format == PIPE_VIDEO_FORMAT_JPEG) {
+		((uint8_t *)dec->bs_ptr)[0] = 0xff;	/* EOI */
+		((uint8_t *)dec->bs_ptr)[1] = 0xd9;
+		dec->bs_size += 2;
+		dec->bs_ptr += 2;
+	}
+}
+
+/**
+ * end decoding of the current frame
+ */
+static void ruvd_end_frame(struct pipe_video_codec *decoder,
+			   struct pipe_video_buffer *target,
+			   struct pipe_picture_desc *picture)
+{
+	struct ruvd_decoder *dec = (struct ruvd_decoder*)decoder;
+	struct pb_buffer *dt;
+	struct rvid_buffer *msg_fb_it_buf, *bs_buf;
+	unsigned bs_size;
+
+	assert(decoder);
+
+	if (!dec->bs_ptr)
+		return;
+
+	msg_fb_it_buf = &dec->msg_fb_it_buffers[dec->cur_buffer];
+	bs_buf = &dec->bs_buffers[dec->cur_buffer];
+
+	bs_size = align(dec->bs_size, 128);
+	memset(dec->bs_ptr, 0, bs_size - dec->bs_size);
+	dec->ws->buffer_unmap(bs_buf->res->buf);
+
+	map_msg_fb_it_buf(dec);
+	dec->msg->size = sizeof(*dec->msg);
+	dec->msg->msg_type = RUVD_MSG_DECODE;
+	dec->msg->stream_handle = dec->stream_handle;
+	dec->msg->status_report_feedback_number = dec->frame_number;
+
+	dec->msg->body.decode.stream_type = dec->stream_type;
+	dec->msg->body.decode.decode_flags = 0x1;
+	dec->msg->body.decode.width_in_samples = dec->base.width;
+	dec->msg->body.decode.height_in_samples = dec->base.height;
+
+	if ((picture->profile == PIPE_VIDEO_PROFILE_VC1_SIMPLE) ||
+	    (picture->profile == PIPE_VIDEO_PROFILE_VC1_MAIN)) {
+		dec->msg->body.decode.width_in_samples = align(dec->msg->body.decode.width_in_samples, 16) / 16;
+		dec->msg->body.decode.height_in_samples = align(dec->msg->body.decode.height_in_samples, 16) / 16;
+	}
+
+	if (dec->dpb.res)
+		dec->msg->body.decode.dpb_size = dec->dpb.res->buf->size;
+	dec->msg->body.decode.bsd_size = bs_size;
+	dec->msg->body.decode.db_pitch = align(dec->base.width, get_db_pitch_alignment(dec));
+
+	if (dec->stream_type == RUVD_CODEC_H264_PERF &&
+	    ((struct r600_common_screen*)dec->screen)->family >= CHIP_POLARIS10)
+		dec->msg->body.decode.dpb_reserved = dec->ctx.res->buf->size;
+
+	dt = dec->set_dtb(dec->msg, (struct vl_video_buffer *)target);
+	if (((struct r600_common_screen*)dec->screen)->family >= CHIP_STONEY)
+		dec->msg->body.decode.dt_wa_chroma_top_offset = dec->msg->body.decode.dt_pitch / 2;
+
+	switch (u_reduce_video_profile(picture->profile)) {
+	case PIPE_VIDEO_FORMAT_MPEG4_AVC:
+		dec->msg->body.decode.codec.h264 = get_h264_msg(dec, (struct pipe_h264_picture_desc*)picture);
+		break;
+
+	case PIPE_VIDEO_FORMAT_HEVC:
+		dec->msg->body.decode.codec.h265 = get_h265_msg(dec, target, (struct pipe_h265_picture_desc*)picture);
+		if (dec->ctx.res == NULL) {
+			unsigned ctx_size;
+			if (dec->base.profile == PIPE_VIDEO_PROFILE_HEVC_MAIN_10)
+				ctx_size = calc_ctx_size_h265_main10(dec, (struct pipe_h265_picture_desc*)picture);
+			else
+				ctx_size = calc_ctx_size_h265_main(dec);
+			if (!rvid_create_buffer(dec->screen, &dec->ctx, ctx_size, PIPE_USAGE_DEFAULT)) {
+				RVID_ERR("Can't allocated context buffer.\n");
+			}
+			rvid_clear_buffer(decoder->context, &dec->ctx);
+		}
+
+		if (dec->ctx.res)
+			dec->msg->body.decode.dpb_reserved = dec->ctx.res->buf->size;
+		break;
+
+	case PIPE_VIDEO_FORMAT_VC1:
+		dec->msg->body.decode.codec.vc1 = get_vc1_msg((struct pipe_vc1_picture_desc*)picture);
+		break;
+
+	case PIPE_VIDEO_FORMAT_MPEG12:
+		dec->msg->body.decode.codec.mpeg2 = get_mpeg2_msg(dec, (struct pipe_mpeg12_picture_desc*)picture);
+		break;
+
+	case PIPE_VIDEO_FORMAT_MPEG4:
+		dec->msg->body.decode.codec.mpeg4 = get_mpeg4_msg(dec, (struct pipe_mpeg4_picture_desc*)picture);
+		break;
+
+	case PIPE_VIDEO_FORMAT_JPEG:
+		break;
+
+	default:
+		assert(0);
+		return;
+	}
+
+	dec->msg->body.decode.db_surf_tile_config = dec->msg->body.decode.dt_surf_tile_config;
+	dec->msg->body.decode.extension_support = 0x1;
+
+	/* set at least the feedback buffer size */
+	dec->fb[0] = dec->fb_size;
+
+	send_msg_buf(dec);
+
+	if (dec->dpb.res)
+		send_cmd(dec, RUVD_CMD_DPB_BUFFER, dec->dpb.res->buf, 0,
+			RADEON_USAGE_READWRITE, RADEON_DOMAIN_VRAM);
+
+	if (dec->ctx.res)
+		send_cmd(dec, RUVD_CMD_CONTEXT_BUFFER, dec->ctx.res->buf, 0,
+			RADEON_USAGE_READWRITE, RADEON_DOMAIN_VRAM);
+	send_cmd(dec, RUVD_CMD_BITSTREAM_BUFFER, bs_buf->res->buf,
+		 0, RADEON_USAGE_READ, RADEON_DOMAIN_GTT);
+	send_cmd(dec, RUVD_CMD_DECODING_TARGET_BUFFER, dt, 0,
+		 RADEON_USAGE_WRITE, RADEON_DOMAIN_VRAM);
+	send_cmd(dec, RUVD_CMD_FEEDBACK_BUFFER, msg_fb_it_buf->res->buf,
+		 FB_BUFFER_OFFSET, RADEON_USAGE_WRITE, RADEON_DOMAIN_GTT);
+	if (have_it(dec))
+		send_cmd(dec, RUVD_CMD_ITSCALING_TABLE_BUFFER, msg_fb_it_buf->res->buf,
+			 FB_BUFFER_OFFSET + dec->fb_size, RADEON_USAGE_READ, RADEON_DOMAIN_GTT);
+	set_reg(dec, dec->reg.cntl, 1);
+
+	flush(dec, RADEON_FLUSH_ASYNC);
+	next_buffer(dec);
+}
+
+/**
+ * flush any outstanding command buffers to the hardware
+ */
+static void ruvd_flush(struct pipe_video_codec *decoder)
+{
+}
+
+/**
+ * create and UVD decoder
+ */
+struct pipe_video_codec *ruvd_create_decoder(struct pipe_context *context,
+					     const struct pipe_video_codec *templ,
+					     ruvd_set_dtb set_dtb)
+{
+	struct radeon_winsys* ws = ((struct r600_common_context *)context)->ws;
+	struct r600_common_context *rctx = (struct r600_common_context*)context;
+	unsigned dpb_size;
+	unsigned width = templ->width, height = templ->height;
+	unsigned bs_buf_size;
+	struct radeon_info info;
+	struct ruvd_decoder *dec;
+	int r, i;
+
+	ws->query_info(ws, &info);
+
+	switch(u_reduce_video_profile(templ->profile)) {
+	case PIPE_VIDEO_FORMAT_MPEG12:
+		if (templ->entrypoint > PIPE_VIDEO_ENTRYPOINT_BITSTREAM || info.family < CHIP_PALM)
+			return vl_create_mpeg12_decoder(context, templ);
+
+		/* fall through */
+	case PIPE_VIDEO_FORMAT_MPEG4:
+		width = align(width, VL_MACROBLOCK_WIDTH);
+		height = align(height, VL_MACROBLOCK_HEIGHT);
+		break;
+	case PIPE_VIDEO_FORMAT_MPEG4_AVC:
+		width = align(width, VL_MACROBLOCK_WIDTH);
+		height = align(height, VL_MACROBLOCK_HEIGHT);
+		break;
+
+	default:
+		break;
+	}
+
+
+	dec = CALLOC_STRUCT(ruvd_decoder);
+
+	if (!dec)
+		return NULL;
+
+	if (info.drm_major < 3)
+		dec->use_legacy = true;
+
+	dec->base = *templ;
+	dec->base.context = context;
+	dec->base.width = width;
+	dec->base.height = height;
+
+	dec->base.destroy = ruvd_destroy;
+	dec->base.begin_frame = ruvd_begin_frame;
+	dec->base.decode_macroblock = ruvd_decode_macroblock;
+	dec->base.decode_bitstream = ruvd_decode_bitstream;
+	dec->base.end_frame = ruvd_end_frame;
+	dec->base.flush = ruvd_flush;
+
+	dec->stream_type = profile2stream_type(dec, info.family);
+	dec->set_dtb = set_dtb;
+	dec->stream_handle = rvid_alloc_stream_handle();
+	dec->screen = context->screen;
+	dec->ws = ws;
+	dec->cs = ws->cs_create(rctx->ctx, RING_UVD, NULL, NULL);
+	if (!dec->cs) {
+		RVID_ERR("Can't get command submission context.\n");
+		goto error;
+	}
+
+	dec->fb_size = (info.family == CHIP_TONGA) ? FB_BUFFER_SIZE_TONGA :
+			FB_BUFFER_SIZE;
+	bs_buf_size = width * height * (512 / (16 * 16));
+	for (i = 0; i < NUM_BUFFERS; ++i) {
+		unsigned msg_fb_it_size = FB_BUFFER_OFFSET + dec->fb_size;
+		STATIC_ASSERT(sizeof(struct ruvd_msg) <= FB_BUFFER_OFFSET);
+		if (have_it(dec))
+			msg_fb_it_size += IT_SCALING_TABLE_SIZE;
+		if (!rvid_create_buffer(dec->screen, &dec->msg_fb_it_buffers[i],
+					msg_fb_it_size, PIPE_USAGE_STAGING)) {
+			RVID_ERR("Can't allocated message buffers.\n");
+			goto error;
+		}
+
+		if (!rvid_create_buffer(dec->screen, &dec->bs_buffers[i],
+					bs_buf_size, PIPE_USAGE_STAGING)) {
+			RVID_ERR("Can't allocated bitstream buffers.\n");
+			goto error;
+		}
+
+		rvid_clear_buffer(context, &dec->msg_fb_it_buffers[i]);
+		rvid_clear_buffer(context, &dec->bs_buffers[i]);
+	}
+
+	dpb_size = calc_dpb_size(dec);
+	if (dpb_size) {
+		if (!rvid_create_buffer(dec->screen, &dec->dpb, dpb_size, PIPE_USAGE_DEFAULT)) {
+			RVID_ERR("Can't allocated dpb.\n");
+			goto error;
+		}
+		rvid_clear_buffer(context, &dec->dpb);
+	}
+
+	if (dec->stream_type == RUVD_CODEC_H264_PERF && info.family >= CHIP_POLARIS10) {
+		unsigned ctx_size = calc_ctx_size_h264_perf(dec);
+		if (!rvid_create_buffer(dec->screen, &dec->ctx, ctx_size, PIPE_USAGE_DEFAULT)) {
+			RVID_ERR("Can't allocated context buffer.\n");
+			goto error;
+		}
+		rvid_clear_buffer(context, &dec->ctx);
+	}
+
+	if (info.family >= CHIP_POLARIS10 && info.drm_minor >= 3) {
+		if (!rvid_create_buffer(dec->screen, &dec->sessionctx,
+					UVD_SESSION_CONTEXT_SIZE,
+					PIPE_USAGE_DEFAULT)) {
+			RVID_ERR("Can't allocated session ctx.\n");
+			goto error;
+		}
+		rvid_clear_buffer(context, &dec->sessionctx);
+	}
+
+	if (info.family >= CHIP_VEGA10) {
+		dec->reg.data0 = RUVD_GPCOM_VCPU_DATA0_SOC15;
+		dec->reg.data1 = RUVD_GPCOM_VCPU_DATA1_SOC15;
+		dec->reg.cmd = RUVD_GPCOM_VCPU_CMD_SOC15;
+		dec->reg.cntl = RUVD_ENGINE_CNTL_SOC15;
+	} else {
+		dec->reg.data0 = RUVD_GPCOM_VCPU_DATA0;
+		dec->reg.data1 = RUVD_GPCOM_VCPU_DATA1;
+		dec->reg.cmd = RUVD_GPCOM_VCPU_CMD;
+		dec->reg.cntl = RUVD_ENGINE_CNTL;
+	}
+
+	map_msg_fb_it_buf(dec);
+	dec->msg->size = sizeof(*dec->msg);
+	dec->msg->msg_type = RUVD_MSG_CREATE;
+	dec->msg->stream_handle = dec->stream_handle;
+	dec->msg->body.create.stream_type = dec->stream_type;
+	dec->msg->body.create.width_in_samples = dec->base.width;
+	dec->msg->body.create.height_in_samples = dec->base.height;
+	dec->msg->body.create.dpb_size = dpb_size;
+	send_msg_buf(dec);
+	r = flush(dec, 0);
+	if (r)
+		goto error;
+
+	next_buffer(dec);
+
+	return &dec->base;
+
+error:
+	if (dec->cs) dec->ws->cs_destroy(dec->cs);
+
+	for (i = 0; i < NUM_BUFFERS; ++i) {
+		rvid_destroy_buffer(&dec->msg_fb_it_buffers[i]);
+		rvid_destroy_buffer(&dec->bs_buffers[i]);
+	}
+
+	rvid_destroy_buffer(&dec->dpb);
+	rvid_destroy_buffer(&dec->ctx);
+	rvid_destroy_buffer(&dec->sessionctx);
+
+	FREE(dec);
+
+	return NULL;
+}
+
+/* calculate top/bottom offset */
+static unsigned texture_offset(struct radeon_surf *surface, unsigned layer,
+				enum ruvd_surface_type type)
+{
+	switch (type) {
+	default:
+	case RUVD_SURFACE_TYPE_LEGACY:
+		return surface->u.legacy.level[0].offset +
+			layer * surface->u.legacy.level[0].slice_size;
+		break;
+	case RUVD_SURFACE_TYPE_GFX9:
+		return surface->u.gfx9.surf_offset +
+			layer * surface->u.gfx9.surf_slice_size;
+		break;
+	}
+}
+
+/* hw encode the aspect of macro tiles */
+static unsigned macro_tile_aspect(unsigned macro_tile_aspect)
+{
+	switch (macro_tile_aspect) {
+	default:
+	case 1: macro_tile_aspect = 0;  break;
+	case 2: macro_tile_aspect = 1;  break;
+	case 4: macro_tile_aspect = 2;  break;
+	case 8: macro_tile_aspect = 3;  break;
+	}
+	return macro_tile_aspect;
+}
+
+/* hw encode the bank width and height */
+static unsigned bank_wh(unsigned bankwh)
+{
+	switch (bankwh) {
+	default:
+	case 1: bankwh = 0;     break;
+	case 2: bankwh = 1;     break;
+	case 4: bankwh = 2;     break;
+	case 8: bankwh = 3;     break;
+	}
+	return bankwh;
+}
+
+/**
+ * fill decoding target field from the luma and chroma surfaces
+ */
+void ruvd_set_dt_surfaces(struct ruvd_msg *msg, struct radeon_surf *luma,
+			struct radeon_surf *chroma, enum ruvd_surface_type type)
+{
+	switch (type) {
+	default:
+	case RUVD_SURFACE_TYPE_LEGACY:
+		msg->body.decode.dt_pitch = luma->u.legacy.level[0].nblk_x * luma->blk_w;
+		switch (luma->u.legacy.level[0].mode) {
+		case RADEON_SURF_MODE_LINEAR_ALIGNED:
+			msg->body.decode.dt_tiling_mode = RUVD_TILE_LINEAR;
+			msg->body.decode.dt_array_mode = RUVD_ARRAY_MODE_LINEAR;
+			break;
+		case RADEON_SURF_MODE_1D:
+			msg->body.decode.dt_tiling_mode = RUVD_TILE_8X8;
+			msg->body.decode.dt_array_mode = RUVD_ARRAY_MODE_1D_THIN;
+			break;
+		case RADEON_SURF_MODE_2D:
+			msg->body.decode.dt_tiling_mode = RUVD_TILE_8X8;
+			msg->body.decode.dt_array_mode = RUVD_ARRAY_MODE_2D_THIN;
+			break;
+		default:
+			assert(0);
+			break;
+		}
+
+		msg->body.decode.dt_luma_top_offset = texture_offset(luma, 0, type);
+		if (chroma)
+			msg->body.decode.dt_chroma_top_offset = texture_offset(chroma, 0, type);
+		if (msg->body.decode.dt_field_mode) {
+			msg->body.decode.dt_luma_bottom_offset = texture_offset(luma, 1, type);
+			if (chroma)
+				msg->body.decode.dt_chroma_bottom_offset = texture_offset(chroma, 1, type);
+		} else {
+			msg->body.decode.dt_luma_bottom_offset = msg->body.decode.dt_luma_top_offset;
+			msg->body.decode.dt_chroma_bottom_offset = msg->body.decode.dt_chroma_top_offset;
+		}
+
+		if (chroma) {
+			assert(luma->u.legacy.bankw == chroma->u.legacy.bankw);
+			assert(luma->u.legacy.bankh == chroma->u.legacy.bankh);
+			assert(luma->u.legacy.mtilea == chroma->u.legacy.mtilea);
+		}
+
+		msg->body.decode.dt_surf_tile_config |= RUVD_BANK_WIDTH(bank_wh(luma->u.legacy.bankw));
+		msg->body.decode.dt_surf_tile_config |= RUVD_BANK_HEIGHT(bank_wh(luma->u.legacy.bankh));
+		msg->body.decode.dt_surf_tile_config |= RUVD_MACRO_TILE_ASPECT_RATIO(macro_tile_aspect(luma->u.legacy.mtilea));
+		break;
+	case RUVD_SURFACE_TYPE_GFX9:
+		msg->body.decode.dt_pitch = luma->u.gfx9.surf_pitch * luma->blk_w;
+		/* SWIZZLE LINEAR MODE */
+		msg->body.decode.dt_tiling_mode = RUVD_TILE_LINEAR;
+		msg->body.decode.dt_array_mode = RUVD_ARRAY_MODE_LINEAR;
+		msg->body.decode.dt_luma_top_offset = texture_offset(luma, 0, type);
+		msg->body.decode.dt_chroma_top_offset = texture_offset(chroma, 0, type);
+		if (msg->body.decode.dt_field_mode) {
+			msg->body.decode.dt_luma_bottom_offset = texture_offset(luma, 1, type);
+			msg->body.decode.dt_chroma_bottom_offset = texture_offset(chroma, 1, type);
+		} else {
+			msg->body.decode.dt_luma_bottom_offset = msg->body.decode.dt_luma_top_offset;
+			msg->body.decode.dt_chroma_bottom_offset = msg->body.decode.dt_chroma_top_offset;
+		}
+		msg->body.decode.dt_surf_tile_config = 0;
+		break;
+	}
+}