Mt8192 can use some of common code with mt8183. Moves them to
a new file in order to reuse.

Signed-off-by: Yunfei Dong <yunfei.d...@mediatek.com>
---
 drivers/media/platform/mtk-vcodec/Makefile    |   1 +
 .../mtk-vcodec/vdec/vdec_h264_req_common.c    | 307 ++++++++++++++
 .../mtk-vcodec/vdec/vdec_h264_req_common.h    | 253 +++++++++++
 .../mtk-vcodec/vdec/vdec_h264_req_if.c        | 395 +-----------------
 4 files changed, 579 insertions(+), 377 deletions(-)
 create mode 100644 
drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_common.c
 create mode 100644 
drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_common.h

diff --git a/drivers/media/platform/mtk-vcodec/Makefile 
b/drivers/media/platform/mtk-vcodec/Makefile
index 359619653a0e..3f41d748eee5 100644
--- a/drivers/media/platform/mtk-vcodec/Makefile
+++ b/drivers/media/platform/mtk-vcodec/Makefile
@@ -9,6 +9,7 @@ mtk-vcodec-dec-y := vdec/vdec_h264_if.o \
                vdec/vdec_vp8_if.o \
                vdec/vdec_vp9_if.o \
                vdec/vdec_h264_req_if.o \
+               vdec/vdec_h264_req_common.o \
                mtk_vcodec_dec_drv.o \
                vdec_drv_if.o \
                vdec_vpu_if.o \
diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_common.c 
b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_common.c
new file mode 100644
index 000000000000..90e8c4906e2a
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_common.c
@@ -0,0 +1,307 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Yunfei Dong <yunfei.d...@mediatek.com>
+ */
+
+#include "vdec_h264_req_common.h"
+
+/* get used parameters for sps/pps */
+#define GET_MTK_VDEC_FLAG(cond, flag) \
+       { dst_param->cond = ((src_param->flags & flag) ? (1) : (0)); }
+#define GET_MTK_VDEC_PARAM(param) \
+       { dst_param->param = src_param->param; }
+
+/*
+ * The firmware expects unused reflist entries to have the value 0x20.
+ */
+void mtk_vdec_h264_fixup_ref_list(u8 *ref_list, size_t num_valid)
+{
+       memset(&ref_list[num_valid], 0x20, 32 - num_valid);
+}
+
+void *mtk_vdec_h264_get_ctrl_ptr(struct mtk_vcodec_ctx *ctx, int id)
+{
+       struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id);
+
+       return ctrl->p_cur.p;
+}
+
+void mtk_vdec_h264_fill_dpb_info(struct mtk_vcodec_ctx *ctx,
+                                struct slice_api_h264_decode_param 
*decode_params,
+                                mtk_h264_dpb_info *h264_dpb_info)
+{
+       struct vb2_queue *vq;
+       struct vb2_buffer *vb;
+       struct vb2_v4l2_buffer *vb2_v4l2;
+       int index;
+
+       vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+
+       for (index = 0; index < V4L2_H264_NUM_DPB_ENTRIES; index++) {
+               const struct slice_h264_dpb_entry *dpb;
+               int vb2_index;
+
+               dpb = &decode_params->dpb[index];
+               if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) {
+                       h264_dpb_info[index].reference_flag = 0;
+                       continue;
+               }
+
+               vb2_index = vb2_find_timestamp(vq, dpb->reference_ts, 0);
+               if (vb2_index < 0) {
+                       dev_err(&ctx->dev->plat_dev->dev,
+                               "Reference invalid: dpb_index(%d) 
reference_ts(%lld)",
+                               index, dpb->reference_ts);
+                       continue;
+               }
+
+               /* 1 for short term reference, 2 for long term reference */
+               if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM))
+                       h264_dpb_info[index].reference_flag = 1;
+               else
+                       h264_dpb_info[index].reference_flag = 2;
+
+               vb = vq->bufs[vb2_index];
+               vb2_v4l2 = container_of(vb, struct vb2_v4l2_buffer, vb2_buf);
+               h264_dpb_info[index].field = vb2_v4l2->field;
+
+               h264_dpb_info[index].y_dma_addr =
+                       vb2_dma_contig_plane_dma_addr(vb, 0);
+               if (ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2)
+                       h264_dpb_info[index].c_dma_addr =
+                               vb2_dma_contig_plane_dma_addr(vb, 1);
+               else
+                       h264_dpb_info[index].c_dma_addr =
+                               h264_dpb_info[index].y_dma_addr +
+                               ctx->picinfo.fb_sz[0];
+       }
+}
+
+void mtk_vdec_h264_copy_sps_params(struct mtk_h264_sps_param *dst_param,
+                                  const struct v4l2_ctrl_h264_sps *src_param)
+{
+       GET_MTK_VDEC_PARAM(chroma_format_idc);
+       GET_MTK_VDEC_PARAM(bit_depth_luma_minus8);
+       GET_MTK_VDEC_PARAM(bit_depth_chroma_minus8);
+       GET_MTK_VDEC_PARAM(log2_max_frame_num_minus4);
+       GET_MTK_VDEC_PARAM(pic_order_cnt_type);
+       GET_MTK_VDEC_PARAM(log2_max_pic_order_cnt_lsb_minus4);
+       GET_MTK_VDEC_PARAM(max_num_ref_frames);
+       GET_MTK_VDEC_PARAM(pic_width_in_mbs_minus1);
+       GET_MTK_VDEC_PARAM(pic_height_in_map_units_minus1);
+
+       GET_MTK_VDEC_FLAG(separate_colour_plane_flag,
+                         V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE);
+       GET_MTK_VDEC_FLAG(qpprime_y_zero_transform_bypass_flag,
+                         V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS);
+       GET_MTK_VDEC_FLAG(delta_pic_order_always_zero_flag,
+                         V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO);
+       GET_MTK_VDEC_FLAG(frame_mbs_only_flag,
+                         V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY);
+       GET_MTK_VDEC_FLAG(mb_adaptive_frame_field_flag,
+                         V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD);
+       GET_MTK_VDEC_FLAG(direct_8x8_inference_flag,
+                         V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE);
+}
+
+void mtk_vdec_h264_copy_pps_params(struct mtk_h264_pps_param *dst_param,
+                                  const struct v4l2_ctrl_h264_pps *src_param)
+{
+       GET_MTK_VDEC_PARAM(num_ref_idx_l0_default_active_minus1);
+       GET_MTK_VDEC_PARAM(num_ref_idx_l1_default_active_minus1);
+       GET_MTK_VDEC_PARAM(weighted_bipred_idc);
+       GET_MTK_VDEC_PARAM(pic_init_qp_minus26);
+       GET_MTK_VDEC_PARAM(chroma_qp_index_offset);
+       GET_MTK_VDEC_PARAM(second_chroma_qp_index_offset);
+
+       GET_MTK_VDEC_FLAG(entropy_coding_mode_flag,
+                         V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE);
+       GET_MTK_VDEC_FLAG(pic_order_present_flag,
+                         
V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT);
+       GET_MTK_VDEC_FLAG(weighted_pred_flag,
+                         V4L2_H264_PPS_FLAG_WEIGHTED_PRED);
+       GET_MTK_VDEC_FLAG(deblocking_filter_control_present_flag,
+                         V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT);
+       GET_MTK_VDEC_FLAG(constrained_intra_pred_flag,
+                         V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED);
+       GET_MTK_VDEC_FLAG(redundant_pic_cnt_present_flag,
+                         V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT);
+       GET_MTK_VDEC_FLAG(transform_8x8_mode_flag,
+                         V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE);
+       GET_MTK_VDEC_FLAG(scaling_matrix_present_flag,
+                         V4L2_H264_PPS_FLAG_SCALING_MATRIX_PRESENT);
+}
+
+void mtk_vdec_h264_copy_slice_hd_params(struct mtk_h264_slice_hd_param 
*dst_param,
+                                       const struct 
v4l2_ctrl_h264_slice_params *src_param,
+                                       const struct 
v4l2_ctrl_h264_decode_params *dec_param)
+{
+       int temp;
+
+       GET_MTK_VDEC_PARAM(first_mb_in_slice);
+       GET_MTK_VDEC_PARAM(slice_type);
+       GET_MTK_VDEC_PARAM(cabac_init_idc);
+       GET_MTK_VDEC_PARAM(slice_qp_delta);
+       GET_MTK_VDEC_PARAM(disable_deblocking_filter_idc);
+       GET_MTK_VDEC_PARAM(slice_alpha_c0_offset_div2);
+       GET_MTK_VDEC_PARAM(slice_beta_offset_div2);
+       GET_MTK_VDEC_PARAM(num_ref_idx_l0_active_minus1);
+       GET_MTK_VDEC_PARAM(num_ref_idx_l1_active_minus1);
+
+       dst_param->frame_num = dec_param->frame_num;
+       dst_param->pic_order_cnt_lsb = dec_param->pic_order_cnt_lsb;
+
+       dst_param->delta_pic_order_cnt_bottom =
+               dec_param->delta_pic_order_cnt_bottom;
+       dst_param->delta_pic_order_cnt0 =
+               dec_param->delta_pic_order_cnt0;
+       dst_param->delta_pic_order_cnt1 =
+               dec_param->delta_pic_order_cnt1;
+
+       temp = dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC;
+       dst_param->field_pic_flag = temp ? 1 : 0;
+
+       temp = dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_BOTTOM_FIELD;
+       dst_param->bottom_field_flag = temp ? 1 : 0;
+
+       GET_MTK_VDEC_FLAG(direct_spatial_mv_pred_flag,
+                         V4L2_H264_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED);
+}
+
+void mtk_vdec_h264_copy_scaling_matrix(struct slice_api_h264_scaling_matrix 
*dst_matrix,
+                                      const struct 
v4l2_ctrl_h264_scaling_matrix *src_matrix)
+{
+       memcpy(dst_matrix->scaling_list_4x4, src_matrix->scaling_list_4x4,
+              sizeof(dst_matrix->scaling_list_4x4));
+
+       memcpy(dst_matrix->scaling_list_8x8, src_matrix->scaling_list_8x8,
+              sizeof(dst_matrix->scaling_list_8x8));
+}
+
+void
+mtk_vdec_h264_copy_decode_params(struct slice_api_h264_decode_param 
*dst_params,
+                                const struct v4l2_ctrl_h264_decode_params 
*src_params,
+                                const struct v4l2_h264_dpb_entry 
dpb[V4L2_H264_NUM_DPB_ENTRIES]);
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(dst_params->dpb); i++) {
+               struct slice_h264_dpb_entry *dst_entry = &dst_params->dpb[i];
+               const struct v4l2_h264_dpb_entry *src_entry = &dpb[i];
+
+               dst_entry->reference_ts = src_entry->reference_ts;
+               dst_entry->frame_num = src_entry->frame_num;
+               dst_entry->pic_num = src_entry->pic_num;
+               dst_entry->top_field_order_cnt = src_entry->top_field_order_cnt;
+               dst_entry->bottom_field_order_cnt =
+                       src_entry->bottom_field_order_cnt;
+               dst_entry->flags = src_entry->flags;
+       }
+
+       /* num_slices is a leftover from the old H.264 support and is ignored
+        * by the firmware.
+        */
+       dst_params->num_slices = 0;
+       dst_params->nal_ref_idc = src_params->nal_ref_idc;
+       dst_params->top_field_order_cnt = src_params->top_field_order_cnt;
+       dst_params->bottom_field_order_cnt = src_params->bottom_field_order_cnt;
+       dst_params->flags = src_params->flags;
+}
+
+static bool mtk_vdec_h264_dpb_entry_match(const struct v4l2_h264_dpb_entry *a,
+                                         const struct v4l2_h264_dpb_entry *b)
+{
+       return a->top_field_order_cnt == b->top_field_order_cnt &&
+              a->bottom_field_order_cnt == b->bottom_field_order_cnt;
+}
+
+/*
+ * Move DPB entries of dec_param that refer to a frame already existing in dpb
+ * into the already existing slot in dpb, and move other entries into new 
slots.
+ *
+ * This function is an adaptation of the similarly-named function in
+ * hantro_h264.c.
+ */
+void mtk_vdec_h264_update_dpb(const struct v4l2_ctrl_h264_decode_params 
*dec_param,
+                             struct v4l2_h264_dpb_entry *dpb)
+{
+       DECLARE_BITMAP(new, ARRAY_SIZE(dec_param->dpb)) = { 0, };
+       DECLARE_BITMAP(in_use, ARRAY_SIZE(dec_param->dpb)) = { 0, };
+       DECLARE_BITMAP(used, ARRAY_SIZE(dec_param->dpb)) = { 0, };
+       unsigned int i, j;
+
+       /* Disable all entries by default, and mark the ones in use. */
+       for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) {
+               if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
+                       set_bit(i, in_use);
+               dpb[i].flags &= ~V4L2_H264_DPB_ENTRY_FLAG_ACTIVE;
+       }
+
+       /* Try to match new DPB entries with existing ones by their POCs. */
+       for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) {
+               const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i];
+
+               if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
+                       continue;
+
+               /*
+                * To cut off some comparisons, iterate only on target DPB
+                * entries were already used.
+                */
+               for_each_set_bit(j, in_use, ARRAY_SIZE(dec_param->dpb)) {
+                       struct v4l2_h264_dpb_entry *cdpb;
+
+                       cdpb = &dpb[j];
+                       if (!mtk_vdec_h264_dpb_entry_match(cdpb, ndpb))
+                               continue;
+
+                       *cdpb = *ndpb;
+                       set_bit(j, used);
+                       /* Don't reiterate on this one. */
+                       clear_bit(j, in_use);
+                       break;
+               }
+
+               if (j == ARRAY_SIZE(dec_param->dpb))
+                       set_bit(i, new);
+       }
+
+       /* For entries that could not be matched, use remaining free slots. */
+       for_each_set_bit(i, new, ARRAY_SIZE(dec_param->dpb)) {
+               const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i];
+               struct v4l2_h264_dpb_entry *cdpb;
+
+               /*
+                * Both arrays are of the same sizes, so there is no way
+                * we can end up with no space in target array, unless
+                * something is buggy.
+                */
+               j = find_first_zero_bit(used, ARRAY_SIZE(dec_param->dpb));
+               if (WARN_ON(j >= ARRAY_SIZE(dec_param->dpb)))
+                       return;
+
+               cdpb = &dpb[j];
+               *cdpb = *ndpb;
+               set_bit(j, used);
+       }
+}
+
+unsigned int mtk_vdec_h264_get_mv_buf_size(unsigned int width, unsigned int 
height)
+{
+       int unit_size = (width / MB_UNIT_LEN) * (height / MB_UNIT_LEN) + 8;
+
+       return HW_MB_STORE_SZ * unit_size;
+}
+
+int mtk_vdec_h264_find_start_code(unsigned char *data, unsigned int data_sz)
+{
+       if (data_sz > 3 && data[0] == 0 && data[1] == 0 && data[2] == 1)
+               return 3;
+
+       if (data_sz > 4 && data[0] == 0 && data[1] == 0 && data[2] == 0 &&
+           data[3] == 1)
+               return 4;
+
+       return -1;
+}
diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_common.h 
b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_common.h
new file mode 100644
index 000000000000..2d731bc777ca
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_common.h
@@ -0,0 +1,253 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Yunfei Dong <yunfei.d...@mediatek.com>
+ */
+
+#ifndef _VDEC_H264_REQ_COMMON_H_
+#define _VDEC_H264_REQ_COMMON_H_
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <media/v4l2-h264.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "../mtk_vcodec_drv.h"
+
+#define NAL_NON_IDR_SLICE                      0x01
+#define NAL_IDR_SLICE                          0x05
+#define NAL_TYPE(value)                                ((value) & 0x1F)
+
+#define BUF_PREDICTION_SZ                      (64 * 4096)
+#define MB_UNIT_LEN                            16
+
+/* motion vector size (bytes) for every macro block */
+#define HW_MB_STORE_SZ                         64
+
+#define H264_MAX_MV_NUM                                32
+
+/**
+ * struct mtk_h264_dpb_info  - h264 dpb information
+ * @y_dma_addr: Y bitstream physical address
+ * @c_dma_addr: CbCr bitstream physical address
+ * @reference_flag: reference picture flag (short/long term reference picture)
+ * @field: field picture flag
+ */
+struct mtk_h264_dpb_info {
+       dma_addr_t y_dma_addr;
+       dma_addr_t c_dma_addr;
+       int reference_flag;
+       int field;
+};
+
+/**
+ * struct mtk_h264_sps_param  - parameters for sps
+ */
+struct mtk_h264_sps_param {
+       unsigned char chroma_format_idc;
+       unsigned char bit_depth_luma_minus8;
+       unsigned char bit_depth_chroma_minus8;
+       unsigned char log2_max_frame_num_minus4;
+       unsigned char pic_order_cnt_type;
+       unsigned char log2_max_pic_order_cnt_lsb_minus4;
+       unsigned char max_num_ref_frames;
+       unsigned char separate_colour_plane_flag;
+       unsigned short pic_width_in_mbs_minus1;
+       unsigned short pic_height_in_map_units_minus1;
+       unsigned int max_frame_nums;
+       unsigned char qpprime_y_zero_transform_bypass_flag;
+       unsigned char delta_pic_order_always_zero_flag;
+       unsigned char frame_mbs_only_flag;
+       unsigned char mb_adaptive_frame_field_flag;
+       unsigned char direct_8x8_inference_flag;
+       unsigned char reserved[3];
+};
+
+/**
+ * struct mtk_h264_pps_param  - parameters for pps
+ */
+struct mtk_h264_pps_param {
+       unsigned char num_ref_idx_l0_default_active_minus1;
+       unsigned char num_ref_idx_l1_default_active_minus1;
+       unsigned char weighted_bipred_idc;
+       char pic_init_qp_minus26;
+       char chroma_qp_index_offset;
+       char second_chroma_qp_index_offset;
+       unsigned char entropy_coding_mode_flag;
+       unsigned char pic_order_present_flag;
+       unsigned char deblocking_filter_control_present_flag;
+       unsigned char constrained_intra_pred_flag;
+       unsigned char weighted_pred_flag;
+       unsigned char redundant_pic_cnt_present_flag;
+       unsigned char transform_8x8_mode_flag;
+       unsigned char scaling_matrix_present_flag;
+       unsigned char reserved[2];
+};
+
+/**
+ * struct mtk_h264_slice_hd_param  - parameters for slice header
+ */
+struct mtk_h264_slice_hd_param {
+       unsigned int first_mb_in_slice;
+       unsigned int field_pic_flag;
+       unsigned int slice_type;
+       unsigned int frame_num;
+       int pic_order_cnt_lsb;
+       int delta_pic_order_cnt_bottom;
+       unsigned int bottom_field_flag;
+       unsigned int direct_spatial_mv_pred_flag;
+       int delta_pic_order_cnt0;
+       int delta_pic_order_cnt1;
+       unsigned int cabac_init_idc;
+       int slice_qp_delta;
+       unsigned int disable_deblocking_filter_idc;
+       int slice_alpha_c0_offset_div2;
+       int slice_beta_offset_div2;
+       unsigned int num_ref_idx_l0_active_minus1;
+       unsigned int num_ref_idx_l1_active_minus1;
+       unsigned int reserved;
+};
+
+struct slice_api_h264_scaling_matrix {
+       unsigned char scaling_list_4x4[6][16];
+       unsigned char scaling_list_8x8[6][64];
+};
+
+struct slice_h264_dpb_entry {
+       unsigned long long reference_ts;
+       unsigned short frame_num;
+       unsigned short pic_num;
+       /* Note that field is indicated by v4l2_buffer.field */
+       int top_field_order_cnt;
+       int bottom_field_order_cnt;
+       unsigned int flags; /* V4L2_H264_DPB_ENTRY_FLAG_* */
+};
+
+/**
+ * struct slice_api_h264_decode_param - parameters for decode.
+ */
+struct slice_api_h264_decode_param {
+       struct slice_h264_dpb_entry dpb[V4L2_H264_NUM_DPB_ENTRIES];
+       unsigned short num_slices;
+       unsigned short nal_ref_idc;
+       unsigned char ref_pic_list_p0[32];
+       unsigned char ref_pic_list_b0[32];
+       unsigned char ref_pic_list_b1[32];
+       int top_field_order_cnt;
+       int bottom_field_order_cnt;
+       unsigned int flags; /* V4L2_H264_DECODE_PARAM_FLAG_* */
+};
+
+/**
+ * struct h264_fb - h264 decode frame buffer information
+ * @vdec_fb_va  : virtual address of struct vdec_fb
+ * @y_fb_dma    : dma address of Y frame buffer (luma)
+ * @c_fb_dma    : dma address of C frame buffer (chroma)
+ * @poc         : picture order count of frame buffer
+ * @reserved    : for 8 bytes alignment
+ */
+struct h264_fb {
+       u64 vdec_fb_va;
+       u64 y_fb_dma;
+       u64 c_fb_dma;
+       s32 poc;
+       u32 reserved;
+};
+
+/**
+ * mtk_vdec_h264_fixup_ref_list - fixup unused reference to 0x20.
+ * @ref_list: reference picture list
+ * @num_valid: used reference number
+ */
+void mtk_vdec_h264_fixup_ref_list(u8 *ref_list, size_t num_valid);
+
+/**
+ * mtk_vdec_h264_get_ctrl_ptr - get each CID contrl address.
+ * @ctx: v4l2 ctx
+ * @id: CID control ID
+ */
+void *mtk_vdec_h264_get_ctrl_ptr(struct mtk_vcodec_ctx *ctx, int id);
+
+/**
+ * mtk_vdec_h264_fill_dpb_info - get each CID contrl address.
+ * @ctx: v4l2 ctx
+ * @decode_params: slice decode params
+ * @h264_dpb_info: dpb buffer information
+ */
+void mtk_vdec_h264_fill_dpb_info(struct mtk_vcodec_ctx *ctx,
+                                struct slice_api_h264_decode_param 
*decode_params,
+                                struct mtk_h264_dpb_info *h264_dpb_info);
+
+/**
+ * mtk_vdec_h264_copy_sps_params - get sps params.
+ * @dst_params: sps params for hw decoder
+ * @src_params: sps params from user driver
+ */
+void mtk_vdec_h264_copy_sps_params(struct mtk_h264_sps_param *dst_param,
+                                  const struct v4l2_ctrl_h264_sps *src_param);
+
+/**
+ * mtk_vdec_h264_copy_pps_params - get pps params.
+ * @dst_params: pps params for hw decoder
+ * @src_params: pps params from user driver
+ */
+void mtk_vdec_h264_copy_pps_params(struct mtk_h264_pps_param *dst_param,
+                                  const struct v4l2_ctrl_h264_pps *src_param);
+
+/**
+ * mtk_vdec_h264_copy_slice_hd_params - get slice header params.
+ * @dst_params: slice params for hw decoder
+ * @src_params: slice params from user driver
+ * @dec_param: decode params from user driver
+ */
+void mtk_vdec_h264_copy_slice_hd_params(struct mtk_h264_slice_hd_param 
*dst_param,
+                                       const struct 
v4l2_ctrl_h264_slice_params *src_param,
+                                       const struct 
v4l2_ctrl_h264_decode_params *dec_param);
+
+/**
+ * mtk_vdec_h264_copy_scaling_matrix - get each CID contrl address.
+ * @dst_matrix: scaling list params for hw decoder
+ * @src_matrix: scaling list params from user driver
+ */
+void mtk_vdec_h264_copy_scaling_matrix(struct slice_api_h264_scaling_matrix 
*dst_matrix,
+                                      const struct 
v4l2_ctrl_h264_scaling_matrix *src_matrix);
+
+/**
+ * mtk_vdec_h264_copy_decode_params - get decode params.
+ * @dst_params: dst params for hw decoder
+ * @src_params: decode params from user driver
+ * @dpb: dpb information
+ */
+void
+mtk_vdec_h264_copy_decode_params(struct slice_api_h264_decode_param 
*dst_params,
+                                const struct v4l2_ctrl_h264_decode_params 
*src_params,
+                                const struct v4l2_h264_dpb_entry 
dpb[V4L2_H264_NUM_DPB_ENTRIES]);
+
+/**
+ * mtk_vdec_h264_update_dpb - updata dpb list.
+ * @dec_param: v4l2 control decode params
+ * @dpb: dpb entry informaton
+ */
+void mtk_vdec_h264_update_dpb(const struct v4l2_ctrl_h264_decode_params 
*dec_param,
+                             struct v4l2_h264_dpb_entry *dpb);
+
+/**
+ * mtk_vdec_h264_find_start_code - find h264 start code using sofeware.
+ * @data: input buffer address
+ * @data_sz: input buffer size
+ *
+ * Return: returns start code position.
+ */
+int mtk_vdec_h264_find_start_code(unsigned char *data, unsigned int data_sz);
+
+/**
+ * mtk_vdec_h264_get_mv_buf_size - get mv buffer size.
+ * @width: picture width
+ * @height: picture height
+ *
+ * Return: returns mv buffer size.
+ */
+unsigned int mtk_vdec_h264_get_mv_buf_size(unsigned int width, unsigned int 
height);
+
+#endif
diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c 
b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c
index 36f3dc1fbe3b..f0f5872c89cd 100644
--- a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c
@@ -12,109 +12,7 @@
 #include "../vdec_drv_base.h"
 #include "../vdec_drv_if.h"
 #include "../vdec_vpu_if.h"
-
-#define BUF_PREDICTION_SZ                      (64 * 4096)
-#define MB_UNIT_LEN                            16
-
-/* get used parameters for sps/pps */
-#define GET_MTK_VDEC_FLAG(cond, flag) \
-       { dst_param->cond = ((src_param->flags & (flag)) ? (1) : (0)); }
-#define GET_MTK_VDEC_PARAM(param) \
-       { dst_param->param = src_param->param; }
-/* motion vector size (bytes) for every macro block */
-#define HW_MB_STORE_SZ                         64
-
-#define H264_MAX_FB_NUM                                17
-#define H264_MAX_MV_NUM                                32
-#define HDR_PARSING_BUF_SZ                     1024
-
-/**
- * struct mtk_h264_dpb_info  - h264 dpb information
- * @y_dma_addr: Y bitstream physical address
- * @c_dma_addr: CbCr bitstream physical address
- * @reference_flag: reference picture flag (short/long term reference picture)
- * @field: field picture flag
- */
-struct mtk_h264_dpb_info {
-       dma_addr_t y_dma_addr;
-       dma_addr_t c_dma_addr;
-       int reference_flag;
-       int field;
-};
-
-/*
- * struct mtk_h264_sps_param  - parameters for sps
- */
-struct mtk_h264_sps_param {
-       unsigned char chroma_format_idc;
-       unsigned char bit_depth_luma_minus8;
-       unsigned char bit_depth_chroma_minus8;
-       unsigned char log2_max_frame_num_minus4;
-       unsigned char pic_order_cnt_type;
-       unsigned char log2_max_pic_order_cnt_lsb_minus4;
-       unsigned char max_num_ref_frames;
-       unsigned char separate_colour_plane_flag;
-       unsigned short pic_width_in_mbs_minus1;
-       unsigned short pic_height_in_map_units_minus1;
-       unsigned int max_frame_nums;
-       unsigned char qpprime_y_zero_transform_bypass_flag;
-       unsigned char delta_pic_order_always_zero_flag;
-       unsigned char frame_mbs_only_flag;
-       unsigned char mb_adaptive_frame_field_flag;
-       unsigned char direct_8x8_inference_flag;
-       unsigned char reserved[3];
-};
-
-/*
- * struct mtk_h264_pps_param  - parameters for pps
- */
-struct mtk_h264_pps_param {
-       unsigned char num_ref_idx_l0_default_active_minus1;
-       unsigned char num_ref_idx_l1_default_active_minus1;
-       unsigned char weighted_bipred_idc;
-       char pic_init_qp_minus26;
-       char chroma_qp_index_offset;
-       char second_chroma_qp_index_offset;
-       unsigned char entropy_coding_mode_flag;
-       unsigned char pic_order_present_flag;
-       unsigned char deblocking_filter_control_present_flag;
-       unsigned char constrained_intra_pred_flag;
-       unsigned char weighted_pred_flag;
-       unsigned char redundant_pic_cnt_present_flag;
-       unsigned char transform_8x8_mode_flag;
-       unsigned char scaling_matrix_present_flag;
-       unsigned char reserved[2];
-};
-
-struct slice_api_h264_scaling_matrix {
-       unsigned char scaling_list_4x4[6][16];
-       unsigned char scaling_list_8x8[6][64];
-};
-
-struct slice_h264_dpb_entry {
-       unsigned long long reference_ts;
-       unsigned short frame_num;
-       unsigned short pic_num;
-       /* Note that field is indicated by v4l2_buffer.field */
-       int top_field_order_cnt;
-       int bottom_field_order_cnt;
-       unsigned int flags; /* V4L2_H264_DPB_ENTRY_FLAG_* */
-};
-
-/*
- * struct slice_api_h264_decode_param - parameters for decode.
- */
-struct slice_api_h264_decode_param {
-       struct slice_h264_dpb_entry dpb[16];
-       unsigned short num_slices;
-       unsigned short nal_ref_idc;
-       unsigned char ref_pic_list_p0[32];
-       unsigned char ref_pic_list_b0[32];
-       unsigned char ref_pic_list_b1[32];
-       int top_field_order_cnt;
-       int bottom_field_order_cnt;
-       unsigned int flags; /* V4L2_H264_DECODE_PARAM_FLAG_* */
-};
+#include "vdec_h264_req_common.h"
 
 /*
  * struct mtk_h264_dec_slice_param  - parameters for decode current frame
@@ -127,22 +25,6 @@ struct mtk_h264_dec_slice_param {
        struct mtk_h264_dpb_info h264_dpb_info[16];
 };
 
-/**
- * struct h264_fb - h264 decode frame buffer information
- * @vdec_fb_va  : virtual address of struct vdec_fb
- * @y_fb_dma    : dma address of Y frame buffer (luma)
- * @c_fb_dma    : dma address of C frame buffer (chroma)
- * @poc         : picture order count of frame buffer
- * @reserved    : for 8 bytes alignment
- */
-struct h264_fb {
-       u64 vdec_fb_va;
-       u64 y_fb_dma;
-       u64 c_fb_dma;
-       s32 poc;
-       u32 reserved;
-};
-
 /**
  * struct vdec_h264_dec_info - decode information
  * @dpb_sz             : decoding picture buffer size
@@ -212,265 +94,31 @@ struct vdec_h264_slice_inst {
        struct v4l2_h264_dpb_entry dpb[16];
 };
 
-static void *get_ctrl_ptr(struct mtk_vcodec_ctx *ctx, int id)
-{
-       struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id);
-
-       return ctrl->p_cur.p;
-}
-
-static void get_h264_dpb_list(struct vdec_h264_slice_inst *inst,
-                             struct mtk_h264_dec_slice_param *slice_param)
-{
-       struct vb2_queue *vq;
-       struct vb2_buffer *vb;
-       struct vb2_v4l2_buffer *vb2_v4l2;
-       u64 index;
-
-       vq = v4l2_m2m_get_vq(inst->ctx->m2m_ctx, 
V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
-
-       for (index = 0; index < ARRAY_SIZE(slice_param->decode_params.dpb); 
index++) {
-               const struct slice_h264_dpb_entry *dpb;
-               int vb2_index;
-
-               dpb = &slice_param->decode_params.dpb[index];
-               if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) {
-                       slice_param->h264_dpb_info[index].reference_flag = 0;
-                       continue;
-               }
-
-               vb2_index = vb2_find_timestamp(vq, dpb->reference_ts, 0);
-               if (vb2_index < 0) {
-                       mtk_vcodec_err(inst, "Reference invalid: 
dpb_index(%lld) reference_ts(%lld)",
-                                      index, dpb->reference_ts);
-                       continue;
-               }
-               /* 1 for short term reference, 2 for long term reference */
-               if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM))
-                       slice_param->h264_dpb_info[index].reference_flag = 1;
-               else
-                       slice_param->h264_dpb_info[index].reference_flag = 2;
-
-               vb = vq->bufs[vb2_index];
-               vb2_v4l2 = container_of(vb, struct vb2_v4l2_buffer, vb2_buf);
-               slice_param->h264_dpb_info[index].field = vb2_v4l2->field;
-
-               slice_param->h264_dpb_info[index].y_dma_addr =
-                       vb2_dma_contig_plane_dma_addr(vb, 0);
-               if (inst->ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2) {
-                       slice_param->h264_dpb_info[index].c_dma_addr =
-                               vb2_dma_contig_plane_dma_addr(vb, 1);
-               }
-       }
-}
-
-static void get_h264_sps_parameters(struct mtk_h264_sps_param *dst_param,
-                                   const struct v4l2_ctrl_h264_sps *src_param)
-{
-       GET_MTK_VDEC_PARAM(chroma_format_idc);
-       GET_MTK_VDEC_PARAM(bit_depth_luma_minus8);
-       GET_MTK_VDEC_PARAM(bit_depth_chroma_minus8);
-       GET_MTK_VDEC_PARAM(log2_max_frame_num_minus4);
-       GET_MTK_VDEC_PARAM(pic_order_cnt_type);
-       GET_MTK_VDEC_PARAM(log2_max_pic_order_cnt_lsb_minus4);
-       GET_MTK_VDEC_PARAM(max_num_ref_frames);
-       GET_MTK_VDEC_PARAM(pic_width_in_mbs_minus1);
-       GET_MTK_VDEC_PARAM(pic_height_in_map_units_minus1);
-
-       GET_MTK_VDEC_FLAG(separate_colour_plane_flag,
-                         V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE);
-       GET_MTK_VDEC_FLAG(qpprime_y_zero_transform_bypass_flag,
-                         V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS);
-       GET_MTK_VDEC_FLAG(delta_pic_order_always_zero_flag,
-                         V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO);
-       GET_MTK_VDEC_FLAG(frame_mbs_only_flag,
-                         V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY);
-       GET_MTK_VDEC_FLAG(mb_adaptive_frame_field_flag,
-                         V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD);
-       GET_MTK_VDEC_FLAG(direct_8x8_inference_flag,
-                         V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE);
-}
-
-static void get_h264_pps_parameters(struct mtk_h264_pps_param *dst_param,
-                                   const struct v4l2_ctrl_h264_pps *src_param)
-{
-       GET_MTK_VDEC_PARAM(num_ref_idx_l0_default_active_minus1);
-       GET_MTK_VDEC_PARAM(num_ref_idx_l1_default_active_minus1);
-       GET_MTK_VDEC_PARAM(weighted_bipred_idc);
-       GET_MTK_VDEC_PARAM(pic_init_qp_minus26);
-       GET_MTK_VDEC_PARAM(chroma_qp_index_offset);
-       GET_MTK_VDEC_PARAM(second_chroma_qp_index_offset);
-
-       GET_MTK_VDEC_FLAG(entropy_coding_mode_flag,
-                         V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE);
-       GET_MTK_VDEC_FLAG(pic_order_present_flag,
-                         
V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT);
-       GET_MTK_VDEC_FLAG(weighted_pred_flag,
-                         V4L2_H264_PPS_FLAG_WEIGHTED_PRED);
-       GET_MTK_VDEC_FLAG(deblocking_filter_control_present_flag,
-                         V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT);
-       GET_MTK_VDEC_FLAG(constrained_intra_pred_flag,
-                         V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED);
-       GET_MTK_VDEC_FLAG(redundant_pic_cnt_present_flag,
-                         V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT);
-       GET_MTK_VDEC_FLAG(transform_8x8_mode_flag,
-                         V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE);
-       GET_MTK_VDEC_FLAG(scaling_matrix_present_flag,
-                         V4L2_H264_PPS_FLAG_SCALING_MATRIX_PRESENT);
-}
-
-static void
-get_h264_scaling_matrix(struct slice_api_h264_scaling_matrix *dst_matrix,
-                       const struct v4l2_ctrl_h264_scaling_matrix *src_matrix)
-{
-       memcpy(dst_matrix->scaling_list_4x4, src_matrix->scaling_list_4x4,
-              sizeof(dst_matrix->scaling_list_4x4));
-
-       memcpy(dst_matrix->scaling_list_8x8, src_matrix->scaling_list_8x8,
-              sizeof(dst_matrix->scaling_list_8x8));
-}
-
-static void
-get_h264_decode_parameters(struct slice_api_h264_decode_param *dst_params,
-                          const struct v4l2_ctrl_h264_decode_params 
*src_params,
-                          const struct v4l2_h264_dpb_entry 
dpb[V4L2_H264_NUM_DPB_ENTRIES])
-{
-       int i;
-
-       for (i = 0; i < ARRAY_SIZE(dst_params->dpb); i++) {
-               struct slice_h264_dpb_entry *dst_entry = &dst_params->dpb[i];
-               const struct v4l2_h264_dpb_entry *src_entry = &dpb[i];
-
-               dst_entry->reference_ts = src_entry->reference_ts;
-               dst_entry->frame_num = src_entry->frame_num;
-               dst_entry->pic_num = src_entry->pic_num;
-               dst_entry->top_field_order_cnt = src_entry->top_field_order_cnt;
-               dst_entry->bottom_field_order_cnt =
-                       src_entry->bottom_field_order_cnt;
-               dst_entry->flags = src_entry->flags;
-       }
-
-       /*
-        * num_slices is a leftover from the old H.264 support and is ignored
-        * by the firmware.
-        */
-       dst_params->num_slices = 0;
-       dst_params->nal_ref_idc = src_params->nal_ref_idc;
-       dst_params->top_field_order_cnt = src_params->top_field_order_cnt;
-       dst_params->bottom_field_order_cnt = src_params->bottom_field_order_cnt;
-       dst_params->flags = src_params->flags;
-}
-
-static bool dpb_entry_match(const struct v4l2_h264_dpb_entry *a,
-                           const struct v4l2_h264_dpb_entry *b)
-{
-       return a->top_field_order_cnt == b->top_field_order_cnt &&
-              a->bottom_field_order_cnt == b->bottom_field_order_cnt;
-}
-
-/*
- * Move DPB entries of dec_param that refer to a frame already existing in dpb
- * into the already existing slot in dpb, and move other entries into new 
slots.
- *
- * This function is an adaptation of the similarly-named function in
- * hantro_h264.c.
- */
-static void update_dpb(const struct v4l2_ctrl_h264_decode_params *dec_param,
-                      struct v4l2_h264_dpb_entry *dpb)
-{
-       DECLARE_BITMAP(new, ARRAY_SIZE(dec_param->dpb)) = { 0, };
-       DECLARE_BITMAP(in_use, ARRAY_SIZE(dec_param->dpb)) = { 0, };
-       DECLARE_BITMAP(used, ARRAY_SIZE(dec_param->dpb)) = { 0, };
-       unsigned int i, j;
-
-       /* Disable all entries by default, and mark the ones in use. */
-       for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) {
-               if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
-                       set_bit(i, in_use);
-               dpb[i].flags &= ~V4L2_H264_DPB_ENTRY_FLAG_ACTIVE;
-       }
-
-       /* Try to match new DPB entries with existing ones by their POCs. */
-       for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) {
-               const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i];
-
-               if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
-                       continue;
-
-               /*
-                * To cut off some comparisons, iterate only on target DPB
-                * entries were already used.
-                */
-               for_each_set_bit(j, in_use, ARRAY_SIZE(dec_param->dpb)) {
-                       struct v4l2_h264_dpb_entry *cdpb;
-
-                       cdpb = &dpb[j];
-                       if (!dpb_entry_match(cdpb, ndpb))
-                               continue;
-
-                       *cdpb = *ndpb;
-                       set_bit(j, used);
-                       /* Don't reiterate on this one. */
-                       clear_bit(j, in_use);
-                       break;
-               }
-
-               if (j == ARRAY_SIZE(dec_param->dpb))
-                       set_bit(i, new);
-       }
-
-       /* For entries that could not be matched, use remaining free slots. */
-       for_each_set_bit(i, new, ARRAY_SIZE(dec_param->dpb)) {
-               const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i];
-               struct v4l2_h264_dpb_entry *cdpb;
-
-               /*
-                * Both arrays are of the same sizes, so there is no way
-                * we can end up with no space in target array, unless
-                * something is buggy.
-                */
-               j = find_first_zero_bit(used, ARRAY_SIZE(dec_param->dpb));
-               if (WARN_ON(j >= ARRAY_SIZE(dec_param->dpb)))
-                       return;
-
-               cdpb = &dpb[j];
-               *cdpb = *ndpb;
-               set_bit(j, used);
-       }
-}
-
-/*
- * The firmware expects unused reflist entries to have the value 0x20.
- */
-static void fixup_ref_list(u8 *ref_list, size_t num_valid)
-{
-       memset(&ref_list[num_valid], 0x20, 32 - num_valid);
-}
-
 static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
 {
        const struct v4l2_ctrl_h264_decode_params *dec_params =
-               get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_DECODE_PARAMS);
+               mtk_vdec_h264_get_ctrl_ptr(inst->ctx, 
V4L2_CID_STATELESS_H264_DECODE_PARAMS);
        const struct v4l2_ctrl_h264_sps *sps =
-               get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SPS);
+               mtk_vdec_h264_get_ctrl_ptr(inst->ctx, 
V4L2_CID_STATELESS_H264_SPS);
        const struct v4l2_ctrl_h264_pps *pps =
-               get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_PPS);
+               mtk_vdec_h264_get_ctrl_ptr(inst->ctx, 
V4L2_CID_STATELESS_H264_PPS);
        const struct v4l2_ctrl_h264_scaling_matrix *scaling_matrix =
-               get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX);
+               mtk_vdec_h264_get_ctrl_ptr(inst->ctx, 
V4L2_CID_STATELESS_H264_SCALING_MATRIX);
        struct mtk_h264_dec_slice_param *slice_param = &inst->h264_slice_param;
        struct v4l2_h264_reflist_builder reflist_builder;
        u8 *p0_reflist = slice_param->decode_params.ref_pic_list_p0;
        u8 *b0_reflist = slice_param->decode_params.ref_pic_list_b0;
        u8 *b1_reflist = slice_param->decode_params.ref_pic_list_b1;
 
-       update_dpb(dec_params, inst->dpb);
+       mtk_vdec_h264_update_dpb(dec_params, inst->dpb);
 
-       get_h264_sps_parameters(&slice_param->sps, sps);
-       get_h264_pps_parameters(&slice_param->pps, pps);
-       get_h264_scaling_matrix(&slice_param->scaling_matrix, scaling_matrix);
-       get_h264_decode_parameters(&slice_param->decode_params, dec_params,
-                                  inst->dpb);
-       get_h264_dpb_list(inst, slice_param);
+       mtk_vdec_h264_copy_sps_params(&slice_param->sps, sps);
+       mtk_vdec_h264_copy_pps_params(&slice_param->pps, pps);
+       mtk_vdec_h264_copy_scaling_matrix(&slice_param->scaling_matrix, 
scaling_matrix);
+       mtk_vdec_h264_copy_decode_params(&slice_param->decode_params,
+                                        dec_params, inst->dpb);
+       mtk_vdec_h264_fill_dpb_info(inst->ctx, &slice_param->decode_params,
+                                   slice_param->h264_dpb_info);
 
        /* Build the reference lists */
        v4l2_h264_init_reflist_builder(&reflist_builder, dec_params, sps,
@@ -478,21 +126,14 @@ static void get_vdec_decode_parameters(struct 
vdec_h264_slice_inst *inst)
        v4l2_h264_build_p_ref_list(&reflist_builder, p0_reflist);
        v4l2_h264_build_b_ref_lists(&reflist_builder, b0_reflist, b1_reflist);
        /* Adapt the built lists to the firmware's expectations */
-       fixup_ref_list(p0_reflist, reflist_builder.num_valid);
-       fixup_ref_list(b0_reflist, reflist_builder.num_valid);
-       fixup_ref_list(b1_reflist, reflist_builder.num_valid);
+       mtk_vdec_h264_fixup_ref_list(p0_reflist, reflist_builder.num_valid);
+       mtk_vdec_h264_fixup_ref_list(b0_reflist, reflist_builder.num_valid);
+       mtk_vdec_h264_fixup_ref_list(b1_reflist, reflist_builder.num_valid);
 
        memcpy(&inst->vsi_ctx.h264_slice_params, slice_param,
               sizeof(inst->vsi_ctx.h264_slice_params));
 }
 
-static unsigned int get_mv_buf_size(unsigned int width, unsigned int height)
-{
-       int unit_size = (width / MB_UNIT_LEN) * (height / MB_UNIT_LEN) + 8;
-
-       return HW_MB_STORE_SZ * unit_size;
-}
-
 static int allocate_predication_buf(struct vdec_h264_slice_inst *inst)
 {
        int err;
@@ -525,7 +166,7 @@ static int alloc_mv_buf(struct vdec_h264_slice_inst *inst,
        int i;
        int err;
        struct mtk_vcodec_mem *mem = NULL;
-       unsigned int buf_sz = get_mv_buf_size(pic->buf_w, pic->buf_h);
+       unsigned int buf_sz = mtk_vdec_h264_get_mv_buf_size(pic->buf_w, 
pic->buf_h);
 
        mtk_v4l2_debug(3, "size = 0x%x", buf_sz);
        for (i = 0; i < H264_MAX_MV_NUM; i++) {
@@ -674,7 +315,7 @@ static int vdec_h264_slice_decode(void *h_vdec, struct 
mtk_vcodec_mem *bs,
 {
        struct vdec_h264_slice_inst *inst = h_vdec;
        const struct v4l2_ctrl_h264_decode_params *dec_params =
-               get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_DECODE_PARAMS);
+               mtk_vdec_h264_get_ctrl_ptr(inst->ctx, 
V4L2_CID_STATELESS_H264_DECODE_PARAMS);
        struct vdec_vpu_inst *vpu = &inst->vpu;
        struct mtk_video_dec_buf *src_buf_info;
        struct mtk_video_dec_buf *dst_buf_info;
-- 
2.25.1

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