diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c
index 57c85af5ffb4..e02ed8dfe0ce 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_h264_req_multi_if.c
@@ -48,10 +48,29 @@ struct vdec_h264_slice_lat_dec_param {
 };
 
 /**
- * struct vdec_h264_slice_info - decode information
+ * struct vdec_h264_slice_info_ex - extend decode information
  *
+ * @wdma_end_addr_offset:	offset from buffer start
  * @nal_info:		nal info of current picture
  * @timeout:		Decode timeout: 1 timeout, 0 no timeout
+ * @vdec_fb_va:	VDEC frame buffer struct virtual address
+ * @crc:		Used to check whether hardware's status is right
+ * @reserved:		reserved
+ */
+struct vdec_h264_slice_info_ex {
+	u64 wdma_end_addr_offset;
+	u16 nal_info;
+	u16 timeout;
+	u64 vdec_fb_va;
+	u32 crc[8];
+	u32 reserved;
+};
+
+/**
+ * struct vdec_h264_slice_info - decode information
+ *
+ * @nal_info:		nal info of current picture
+ * @timeout:		Decode timeout: 1 timeout, 0 no timeount
  * @bs_buf_size:	bitstream size
  * @bs_buf_addr:	bitstream buffer dma address
  * @y_fb_dma:		Y frame buffer dma address
@@ -70,6 +89,64 @@ struct vdec_h264_slice_info {
 	u32 crc[8];
 };
 
+/*
+ * struct vdec_h264_slice_mem - memory address and size
+ */
+struct vdec_h264_slice_mem {
+	union {
+		u64 buf;
+		u64 dma_addr;
+	};
+	union {
+		size_t size;
+		u64 dma_addr_end;
+	};
+};
+
+/**
+ * struct vdec_h264_slice_fb - frame buffer for decoding
+ *
+ * @y:  current y buffer address info
+ * @c:  current c buffer address info
+ */
+struct vdec_h264_slice_fb {
+	struct vdec_h264_slice_mem y;
+	struct vdec_h264_slice_mem c;
+};
+
+/**
+ * struct vdec_h264_slice_vsi_ex - extend shared memory for decode information exchange
+ *        between SCP and Host.
+ *
+ * @bs:		input buffer info
+ * @fb:		current y/c buffer
+ *
+ * @ube:		ube buffer
+ * @trans:		transcoded buffer
+ * @row_info:		row info buffer
+ * @err_map:		err map buffer
+ * @slice_bc:		slice buffer
+ *
+ * @mv_buf_dma:		HW working motion vector buffer
+ * @dec:		decode information (AP-R, VPU-W)
+ * @h264_slice_params:	decode parameters for hw used
+ */
+struct vdec_h264_slice_vsi_ex {
+	/* LAT dec addr */
+	struct vdec_h264_slice_mem bs;
+	struct vdec_h264_slice_fb fb;
+
+	struct vdec_h264_slice_mem ube;
+	struct vdec_h264_slice_mem trans;
+	struct vdec_h264_slice_mem row_info;
+	struct vdec_h264_slice_mem err_map;
+	struct vdec_h264_slice_mem slice_bc;
+
+	struct vdec_h264_slice_mem mv_buf_dma[H264_MAX_MV_NUM];
+	struct vdec_h264_slice_info_ex dec;
+	struct vdec_h264_slice_lat_dec_param h264_slice_params;
+};
+
 /**
  * struct vdec_h264_slice_vsi - shared memory for decode information exchange
  *        between SCP and Host.
@@ -136,10 +213,10 @@ struct vdec_h264_slice_share_info {
  * @pred_buf:		HW working prediction buffer
  * @mv_buf:		HW working motion vector buffer
  * @vpu:		VPU instance
- * @vsi:		vsi used for lat
- * @vsi_core:		vsi used for core
+ * @vsi_ex:		extend vsi used for lat
+ * @vsi_core_ex:	extend vsi used for core
  *
- * @vsi_ctx:		Local VSI data for this decoding context
+ * @vsi_ctx_ex:	Local extend vsi data for this decoding context
  * @h264_slice_param:	the parameters that hardware use to decode
  *
  * @resolution_changed:resolution changed
@@ -156,10 +233,19 @@ struct vdec_h264_slice_inst {
 	struct mtk_vcodec_mem pred_buf;
 	struct mtk_vcodec_mem mv_buf[H264_MAX_MV_NUM];
 	struct vdec_vpu_inst vpu;
-	struct vdec_h264_slice_vsi *vsi;
-	struct vdec_h264_slice_vsi *vsi_core;
-
-	struct vdec_h264_slice_vsi vsi_ctx;
+	union {
+		struct vdec_h264_slice_vsi_ex *vsi_ex;
+		struct vdec_h264_slice_vsi *vsi;
+	};
+	union {
+		struct vdec_h264_slice_vsi_ex *vsi_core_ex;
+		struct vdec_h264_slice_vsi *vsi_core;
+	};
+
+	union {
+		struct vdec_h264_slice_vsi_ex vsi_ctx_ex;
+		struct vdec_h264_slice_vsi vsi_ctx;
+	};
 	struct vdec_h264_slice_lat_dec_param h264_slice_param;
 
 	unsigned int resolution_changed;
@@ -389,6 +475,98 @@ static void vdec_h264_slice_get_crop_info(struct vdec_h264_slice_inst *inst,
 		       cr->left, cr->top, cr->width, cr->height);
 }
 
+static void vdec_h264_slice_setup_lat_buffer(struct vdec_h264_slice_inst *inst,
+					     struct mtk_vcodec_mem *bs,
+					     struct vdec_lat_buf *lat_buf)
+{
+	struct mtk_vcodec_mem *mem;
+	int i;
+
+	inst->vsi_ex->bs.dma_addr = (u64)bs->dma_addr;
+	inst->vsi_ex->bs.size = bs->size;
+
+	for (i = 0; i < H264_MAX_MV_NUM; i++) {
+		mem = &inst->mv_buf[i];
+		inst->vsi_ex->mv_buf_dma[i].dma_addr = mem->dma_addr;
+		inst->vsi_ex->mv_buf_dma[i].size = mem->size;
+	}
+	inst->vsi_ex->ube.dma_addr = lat_buf->ctx->msg_queue.wdma_addr.dma_addr;
+	inst->vsi_ex->ube.size = lat_buf->ctx->msg_queue.wdma_addr.size;
+
+	inst->vsi_ex->row_info.dma_addr = 0;
+	inst->vsi_ex->row_info.size = 0;
+
+	inst->vsi_ex->err_map.dma_addr = lat_buf->wdma_err_addr.dma_addr;
+	inst->vsi_ex->err_map.size = lat_buf->wdma_err_addr.size;
+
+	inst->vsi_ex->slice_bc.dma_addr = lat_buf->slice_bc_addr.dma_addr;
+	inst->vsi_ex->slice_bc.size = lat_buf->slice_bc_addr.size;
+
+	inst->vsi_ex->trans.dma_addr_end = inst->ctx->msg_queue.wdma_rptr_addr;
+	inst->vsi_ex->trans.dma_addr = inst->ctx->msg_queue.wdma_wptr_addr;
+}
+
+static int vdec_h264_slice_setup_core_buffer(struct vdec_h264_slice_inst *inst,
+					     struct vdec_h264_slice_share_info *share_info,
+					     struct vdec_lat_buf *lat_buf)
+{
+	struct mtk_vcodec_mem *mem;
+	struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
+	struct vb2_v4l2_buffer *vb2_v4l2;
+	struct vdec_fb *fb;
+	u64 y_fb_dma, c_fb_dma = 0;
+	int i;
+
+	fb = ctx->dev->vdec_pdata->get_cap_buffer(ctx);
+	if (!fb) {
+		mtk_vdec_err(ctx, "fb buffer is NULL");
+		return -EBUSY;
+	}
+
+	y_fb_dma = (u64)fb->base_y.dma_addr;
+	if (ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 1)
+		c_fb_dma =
+			y_fb_dma + inst->ctx->picinfo.buf_w * inst->ctx->picinfo.buf_h;
+	else
+		c_fb_dma = (u64)fb->base_c.dma_addr;
+
+	mtk_vdec_debug(ctx, "[h264-core] y/c addr = 0x%llx 0x%llx", y_fb_dma, c_fb_dma);
+
+	inst->vsi_core_ex->fb.y.dma_addr = y_fb_dma;
+	inst->vsi_core_ex->fb.y.size = ctx->picinfo.fb_sz[0];
+	inst->vsi_core_ex->fb.c.dma_addr = c_fb_dma;
+	inst->vsi_core_ex->fb.c.size = ctx->picinfo.fb_sz[1];
+
+	inst->vsi_core_ex->dec.vdec_fb_va = (unsigned long)fb;
+	inst->vsi_core_ex->dec.nal_info = share_info->nal_info;
+
+	inst->vsi_core_ex->ube.dma_addr = lat_buf->ctx->msg_queue.wdma_addr.dma_addr;
+	inst->vsi_core_ex->ube.size = lat_buf->ctx->msg_queue.wdma_addr.size;
+
+	inst->vsi_core_ex->err_map.dma_addr = lat_buf->wdma_err_addr.dma_addr;
+	inst->vsi_core_ex->err_map.size = lat_buf->wdma_err_addr.size;
+
+	inst->vsi_core_ex->slice_bc.dma_addr = lat_buf->slice_bc_addr.dma_addr;
+	inst->vsi_core_ex->slice_bc.size = lat_buf->slice_bc_addr.size;
+
+	inst->vsi_core_ex->row_info.dma_addr = 0;
+	inst->vsi_core_ex->row_info.size = 0;
+
+	inst->vsi_core_ex->trans.dma_addr = share_info->trans_start;
+	inst->vsi_core_ex->trans.dma_addr_end = share_info->trans_end;
+
+	for (i = 0; i < H264_MAX_MV_NUM; i++) {
+		mem = &inst->mv_buf[i];
+		inst->vsi_core_ex->mv_buf_dma[i].dma_addr = mem->dma_addr;
+		inst->vsi_core_ex->mv_buf_dma[i].size = mem->size;
+	}
+
+	vb2_v4l2 = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+	v4l2_m2m_buf_copy_metadata(&lat_buf->ts_info, vb2_v4l2, true);
+
+	return 0;
+}
+
 static int vdec_h264_slice_init(struct mtk_vcodec_dec_ctx *ctx)
 {
 	struct vdec_h264_slice_inst *inst;
@@ -412,10 +590,10 @@ static int vdec_h264_slice_init(struct mtk_vcodec_dec_ctx *ctx)
 		goto error_free_inst;
 	}
 
-	vsi_size = round_up(sizeof(struct vdec_h264_slice_vsi), VCODEC_DEC_ALIGNED_64);
-	inst->vsi = inst->vpu.vsi;
-	inst->vsi_core =
-		(struct vdec_h264_slice_vsi *)(((char *)inst->vpu.vsi) + vsi_size);
+	vsi_size = round_up(sizeof(struct vdec_h264_slice_vsi_ex), VCODEC_DEC_ALIGNED_64);
+	inst->vsi_ex = inst->vpu.vsi;
+	inst->vsi_core_ex =
+		(struct vdec_h264_slice_vsi_ex *)(((char *)inst->vpu.vsi) + vsi_size);
 	inst->resolution_changed = true;
 	inst->realloc_mv_buf = true;
 
@@ -449,64 +627,22 @@ static void vdec_h264_slice_deinit(void *h_vdec)
 
 static int vdec_h264_slice_core_decode(struct vdec_lat_buf *lat_buf)
 {
-	struct vdec_fb *fb;
-	u64 vdec_fb_va;
-	u64 y_fb_dma, c_fb_dma;
-	int err, timeout, i;
+	int err, timeout;
 	struct mtk_vcodec_dec_ctx *ctx = lat_buf->ctx;
 	struct vdec_h264_slice_inst *inst = ctx->drv_handle;
-	struct vb2_v4l2_buffer *vb2_v4l2;
 	struct vdec_h264_slice_share_info *share_info = lat_buf->private_data;
-	struct mtk_vcodec_mem *mem;
 	struct vdec_vpu_inst *vpu = &inst->vpu;
 
 	mtk_vdec_debug(ctx, "[h264-core] vdec_h264 core decode");
-	memcpy(&inst->vsi_core->h264_slice_params, &share_info->h264_slice_params,
+	memcpy(&inst->vsi_core_ex->h264_slice_params, &share_info->h264_slice_params,
 	       sizeof(share_info->h264_slice_params));
 
-	fb = ctx->dev->vdec_pdata->get_cap_buffer(ctx);
-	if (!fb) {
-		err = -EBUSY;
-		mtk_vdec_err(ctx, "fb buffer is NULL");
+	err = vdec_h264_slice_setup_core_buffer(inst, share_info, lat_buf);
+	if (err)
 		goto vdec_dec_end;
-	}
-
-	vdec_fb_va = (unsigned long)fb;
-	y_fb_dma = (u64)fb->base_y.dma_addr;
-	if (ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 1)
-		c_fb_dma =
-			y_fb_dma + inst->ctx->picinfo.buf_w * inst->ctx->picinfo.buf_h;
-	else
-		c_fb_dma = (u64)fb->base_c.dma_addr;
-
-	mtk_vdec_debug(ctx, "[h264-core] y/c addr = 0x%llx 0x%llx", y_fb_dma, c_fb_dma);
 
-	inst->vsi_core->dec.y_fb_dma = y_fb_dma;
-	inst->vsi_core->dec.c_fb_dma = c_fb_dma;
-	inst->vsi_core->dec.vdec_fb_va = vdec_fb_va;
-	inst->vsi_core->dec.nal_info = share_info->nal_info;
-	inst->vsi_core->wdma_start_addr =
-		lat_buf->ctx->msg_queue.wdma_addr.dma_addr;
-	inst->vsi_core->wdma_end_addr =
-		lat_buf->ctx->msg_queue.wdma_addr.dma_addr +
-		lat_buf->ctx->msg_queue.wdma_addr.size;
-	inst->vsi_core->wdma_err_addr = lat_buf->wdma_err_addr.dma_addr;
-	inst->vsi_core->slice_bc_start_addr = lat_buf->slice_bc_addr.dma_addr;
-	inst->vsi_core->slice_bc_end_addr = lat_buf->slice_bc_addr.dma_addr +
-		lat_buf->slice_bc_addr.size;
-	inst->vsi_core->trans_start = share_info->trans_start;
-	inst->vsi_core->trans_end = share_info->trans_end;
-	for (i = 0; i < H264_MAX_MV_NUM; i++) {
-		mem = &inst->mv_buf[i];
-		inst->vsi_core->mv_buf_dma[i] = mem->dma_addr;
-	}
-
-	vb2_v4l2 = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
-	v4l2_m2m_buf_copy_metadata(&lat_buf->ts_info, vb2_v4l2, true);
-
-	vdec_h264_slice_fill_decode_reflist(inst, &inst->vsi_core->h264_slice_params,
+	vdec_h264_slice_fill_decode_reflist(inst, &inst->vsi_core_ex->h264_slice_params,
 					    share_info);
-
 	err = vpu_dec_core(vpu);
 	if (err) {
 		mtk_vdec_err(ctx, "core decode err=%d", err);
@@ -518,15 +654,15 @@ static int vdec_h264_slice_core_decode(struct vdec_lat_buf *lat_buf)
 					       WAIT_INTR_TIMEOUT_MS, MTK_VDEC_CORE);
 	if (timeout)
 		mtk_vdec_err(ctx, "core decode timeout: pic_%d", ctx->decoded_frame_cnt);
-	inst->vsi_core->dec.timeout = !!timeout;
+	inst->vsi_core_ex->dec.timeout = !!timeout;
 
 	vpu_dec_core_end(vpu);
 	mtk_vdec_debug(ctx, "pic[%d] crc: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x",
 		       ctx->decoded_frame_cnt,
-		       inst->vsi_core->dec.crc[0], inst->vsi_core->dec.crc[1],
-		       inst->vsi_core->dec.crc[2], inst->vsi_core->dec.crc[3],
-		       inst->vsi_core->dec.crc[4], inst->vsi_core->dec.crc[5],
-		       inst->vsi_core->dec.crc[6], inst->vsi_core->dec.crc[7]);
+		       inst->vsi_core_ex->dec.crc[0], inst->vsi_core_ex->dec.crc[1],
+		       inst->vsi_core_ex->dec.crc[2], inst->vsi_core_ex->dec.crc[3],
+		       inst->vsi_core_ex->dec.crc[4], inst->vsi_core_ex->dec.crc[5],
+		       inst->vsi_core_ex->dec.crc[6], inst->vsi_core_ex->dec.crc[7]);
 
 vdec_dec_end:
 	vdec_msg_queue_update_ube_rptr(&lat_buf->ctx->msg_queue, share_info->trans_end);
@@ -565,12 +701,11 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 	struct vdec_h264_slice_inst *inst = h_vdec;
 	struct vdec_vpu_inst *vpu = &inst->vpu;
 	struct mtk_video_dec_buf *src_buf_info;
-	int nal_start_idx, err, timeout = 0, i;
+	int nal_start_idx, err, timeout = 0;
 	unsigned int data[2];
 	struct vdec_lat_buf *lat_buf;
 	struct vdec_h264_slice_share_info *share_info;
 	unsigned char *buf;
-	struct mtk_vcodec_mem *mem;
 
 	if (vdec_msg_queue_init(&inst->ctx->msg_queue, inst->ctx,
 				vdec_h264_slice_core_decode,
@@ -606,16 +741,13 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 	v4l2_m2m_buf_copy_metadata(&src_buf_info->m2m_buf.vb, &lat_buf->ts_info, true);
 
 	err = vdec_h264_slice_fill_decode_parameters(inst, share_info,
-						     &inst->vsi->h264_slice_params);
+						     &inst->vsi_ex->h264_slice_params);
 	if (err)
 		goto err_free_fb_out;
 
 	vdec_h264_insert_startcode(inst->ctx->dev, buf, &bs->size,
 				   &share_info->h264_slice_params.pps);
 
-	inst->vsi->dec.bs_buf_addr = (uint64_t)bs->dma_addr;
-	inst->vsi->dec.bs_buf_size = bs->size;
-
 	*res_chg = inst->resolution_changed;
 	if (inst->resolution_changed) {
 		mtk_vdec_debug(inst->ctx, "- resolution changed -");
@@ -627,30 +759,16 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 		}
 		inst->resolution_changed = false;
 	}
-	for (i = 0; i < H264_MAX_MV_NUM; i++) {
-		mem = &inst->mv_buf[i];
-		inst->vsi->mv_buf_dma[i] = mem->dma_addr;
-	}
-	inst->vsi->wdma_start_addr = lat_buf->ctx->msg_queue.wdma_addr.dma_addr;
-	inst->vsi->wdma_end_addr = lat_buf->ctx->msg_queue.wdma_addr.dma_addr +
-		lat_buf->ctx->msg_queue.wdma_addr.size;
-	inst->vsi->wdma_err_addr = lat_buf->wdma_err_addr.dma_addr;
-	inst->vsi->slice_bc_start_addr = lat_buf->slice_bc_addr.dma_addr;
-	inst->vsi->slice_bc_end_addr = lat_buf->slice_bc_addr.dma_addr +
-		lat_buf->slice_bc_addr.size;
-
-	inst->vsi->trans_end = inst->ctx->msg_queue.wdma_rptr_addr;
-	inst->vsi->trans_start = inst->ctx->msg_queue.wdma_wptr_addr;
-	mtk_vdec_debug(inst->ctx, "lat:trans(0x%llx 0x%llx) err:0x%llx",
-		       inst->vsi->wdma_start_addr,
-		       inst->vsi->wdma_end_addr,
-		       inst->vsi->wdma_err_addr);
-
-	mtk_vdec_debug(inst->ctx, "slice(0x%llx 0x%llx) rprt((0x%llx 0x%llx))",
-		       inst->vsi->slice_bc_start_addr,
-		       inst->vsi->slice_bc_end_addr,
-		       inst->vsi->trans_start,
-		       inst->vsi->trans_end);
+
+	vdec_h264_slice_setup_lat_buffer(inst, bs, lat_buf);
+	mtk_vdec_debug(inst->ctx, "lat:trans(0x%llx 0x%lx) err:0x%llx",
+		       inst->vsi_ex->ube.dma_addr, (unsigned long)inst->vsi_ex->ube.size,
+		       inst->vsi_ex->err_map.dma_addr);
+
+	mtk_vdec_debug(inst->ctx, "slice(0x%llx 0x%lx) rprt((0x%llx 0x%llx))",
+		       inst->vsi_ex->slice_bc.dma_addr, (unsigned long)inst->vsi_ex->slice_bc.size,
+		       inst->vsi_ex->trans.dma_addr, inst->vsi_ex->trans.dma_addr_end);
+
 	err = vpu_dec_start(vpu, data, 2);
 	if (err) {
 		mtk_vdec_debug(inst->ctx, "lat decode err: %d", err);
@@ -658,12 +776,13 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 	}
 
 	share_info->trans_end = inst->ctx->msg_queue.wdma_addr.dma_addr +
-		inst->vsi->wdma_end_addr_offset;
+		inst->vsi_ex->dec.wdma_end_addr_offset;
+
 	share_info->trans_start = inst->ctx->msg_queue.wdma_wptr_addr;
-	share_info->nal_info = inst->vsi->dec.nal_info;
+	share_info->nal_info = inst->vsi_ex->dec.nal_info;
 
 	if (IS_VDEC_INNER_RACING(inst->ctx->dev->dec_capability)) {
-		memcpy(&share_info->h264_slice_params, &inst->vsi->h264_slice_params,
+		memcpy(&share_info->h264_slice_params, &inst->vsi_ex->h264_slice_params,
 		       sizeof(share_info->h264_slice_params));
 		vdec_msg_queue_qbuf(&inst->ctx->msg_queue.core_ctx, lat_buf);
 	}
@@ -673,7 +792,7 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 					       WAIT_INTR_TIMEOUT_MS, MTK_VDEC_LAT0);
 	if (timeout)
 		mtk_vdec_err(inst->ctx, "lat decode timeout: pic_%d", inst->slice_dec_num);
-	inst->vsi->dec.timeout = !!timeout;
+	inst->vsi_ex->dec.timeout = !!timeout;
 
 	err = vpu_dec_end(vpu);
 	if (err == SLICE_HEADER_FULL || err == TRANS_BUFFER_FULL) {
@@ -685,16 +804,18 @@ static int vdec_h264_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 	}
 
 	share_info->trans_end = inst->ctx->msg_queue.wdma_addr.dma_addr +
-		inst->vsi->wdma_end_addr_offset;
+		inst->vsi_ex->dec.wdma_end_addr_offset;
+
 	vdec_msg_queue_update_ube_wptr(&lat_buf->ctx->msg_queue, share_info->trans_end);
 
 	if (!IS_VDEC_INNER_RACING(inst->ctx->dev->dec_capability)) {
-		memcpy(&share_info->h264_slice_params, &inst->vsi->h264_slice_params,
+		memcpy(&share_info->h264_slice_params, &inst->vsi_ex->h264_slice_params,
 		       sizeof(share_info->h264_slice_params));
 		vdec_msg_queue_qbuf(&inst->ctx->msg_queue.core_ctx, lat_buf);
 	}
 	mtk_vdec_debug(inst->ctx, "dec num: %d lat crc: 0x%x 0x%x 0x%x", inst->slice_dec_num,
-		       inst->vsi->dec.crc[0], inst->vsi->dec.crc[1], inst->vsi->dec.crc[2]);
+		       inst->vsi_ex->dec.crc[0], inst->vsi_ex->dec.crc[1],
+		       inst->vsi_ex->dec.crc[2]);
 
 	inst->slice_dec_num++;
 	return 0;
@@ -735,11 +856,11 @@ static int vdec_h264_slice_single_decode(void *h_vdec, struct mtk_vcodec_mem *bs
 	mtk_vdec_debug(inst->ctx, "[h264-dec] [%d] y_dma=%llx c_dma=%llx",
 		       inst->ctx->decoded_frame_cnt, y_fb_dma, c_fb_dma);
 
-	inst->vsi_ctx.dec.bs_buf_addr = (u64)bs->dma_addr;
-	inst->vsi_ctx.dec.bs_buf_size = bs->size;
-	inst->vsi_ctx.dec.y_fb_dma = y_fb_dma;
-	inst->vsi_ctx.dec.c_fb_dma = c_fb_dma;
-	inst->vsi_ctx.dec.vdec_fb_va = (u64)(uintptr_t)fb;
+	inst->vsi_ctx_ex.bs.dma_addr = (u64)bs->dma_addr;
+	inst->vsi_ctx_ex.bs.size = bs->size;
+	inst->vsi_ctx_ex.fb.y.dma_addr = y_fb_dma;
+	inst->vsi_ctx_ex.fb.c.dma_addr = c_fb_dma;
+	inst->vsi_ctx_ex.dec.vdec_fb_va = (u64)(uintptr_t)fb;
 
 	v4l2_m2m_buf_copy_metadata(&src_buf_info->m2m_buf.vb,
 				   &dst_buf_info->m2m_buf.vb, true);
@@ -747,8 +868,8 @@ static int vdec_h264_slice_single_decode(void *h_vdec, struct mtk_vcodec_mem *bs
 	if (err)
 		goto err_free_fb_out;
 
-	memcpy(&inst->vsi_ctx.h264_slice_params, &inst->h264_slice_param,
-	       sizeof(inst->vsi_ctx.h264_slice_params));
+	memcpy(&inst->vsi_ctx_ex.h264_slice_params, &inst->h264_slice_param,
+	       sizeof(inst->vsi_ctx_ex.h264_slice_params));
 
 	buf = (unsigned char *)bs->va;
 	nal_start_idx = mtk_vdec_h264_find_start_code(buf, bs->size);
@@ -756,7 +877,7 @@ static int vdec_h264_slice_single_decode(void *h_vdec, struct mtk_vcodec_mem *bs
 		err = -EINVAL;
 		goto err_free_fb_out;
 	}
-	inst->vsi_ctx.dec.nal_info = buf[nal_start_idx];
+	inst->vsi_ctx_ex.dec.nal_info = buf[nal_start_idx];
 
 	*res_chg = inst->resolution_changed;
 	if (inst->resolution_changed) {
@@ -771,11 +892,11 @@ static int vdec_h264_slice_single_decode(void *h_vdec, struct mtk_vcodec_mem *bs
 
 		for (i = 0; i < H264_MAX_MV_NUM; i++) {
 			mem = &inst->mv_buf[i];
-			inst->vsi_ctx.mv_buf_dma[i] = mem->dma_addr;
+			inst->vsi_ctx_ex.mv_buf_dma[i].dma_addr = mem->dma_addr;
 		}
 	}
 
-	memcpy(inst->vpu.vsi, &inst->vsi_ctx, sizeof(inst->vsi_ctx));
+	memcpy(inst->vpu.vsi, &inst->vsi_ctx_ex, sizeof(inst->vsi_ctx_ex));
 	err = vpu_dec_start(vpu, data, 2);
 	if (err)
 		goto err_free_fb_out;
@@ -786,18 +907,18 @@ static int vdec_h264_slice_single_decode(void *h_vdec, struct mtk_vcodec_mem *bs
 	if (err)
 		mtk_vdec_err(inst->ctx, "decode timeout: pic_%d", inst->ctx->decoded_frame_cnt);
 
-	inst->vsi->dec.timeout = !!err;
+	inst->vsi_ex->dec.timeout = !!err;
 	err = vpu_dec_end(vpu);
 	if (err)
 		goto err_free_fb_out;
 
-	memcpy(&inst->vsi_ctx, inst->vpu.vsi, sizeof(inst->vsi_ctx));
+	memcpy(&inst->vsi_ctx_ex, inst->vpu.vsi, sizeof(inst->vsi_ctx_ex));
 	mtk_vdec_debug(inst->ctx, "pic[%d] crc: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x",
 		       inst->ctx->decoded_frame_cnt,
-		       inst->vsi_ctx.dec.crc[0], inst->vsi_ctx.dec.crc[1],
-		       inst->vsi_ctx.dec.crc[2], inst->vsi_ctx.dec.crc[3],
-		       inst->vsi_ctx.dec.crc[4], inst->vsi_ctx.dec.crc[5],
-		       inst->vsi_ctx.dec.crc[6], inst->vsi_ctx.dec.crc[7]);
+		       inst->vsi_ctx_ex.dec.crc[0], inst->vsi_ctx_ex.dec.crc[1],
+		       inst->vsi_ctx_ex.dec.crc[2], inst->vsi_ctx_ex.dec.crc[3],
+		       inst->vsi_ctx_ex.dec.crc[4], inst->vsi_ctx_ex.dec.crc[5],
+		       inst->vsi_ctx_ex.dec.crc[6], inst->vsi_ctx_ex.dec.crc[7]);
 
 	inst->ctx->decoded_frame_cnt++;
 	return 0;
