// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2023 MediaTek Inc.
 * Author: Yunfei Dong <yunfei.dong@mediatek.com>
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <media/videobuf2-dma-contig.h>

#include "../mtk_vcodec_dec.h"
#include "../../common/mtk_vcodec_intr.h"
#include "../vdec_drv_base.h"
#include "../vdec_drv_if.h"
#include "../vdec_vpu_if.h"

/* the size used to store hevc wrap information */
#define VDEC_HEVC_WRAP_SZ (532 * SZ_1K)

#define HEVC_MAX_MV_NUM 32

/* get used parameters for sps/pps */
#define GET_HEVC_VDEC_FLAG(cond, flag) \
        { dst_param->cond = ((src_param->flags & (flag)) ? (1) : (0)); }
#define GET_HEVC_VDEC_PARAM(param) \
        { dst_param->param = src_param->param; }

/**
 * enum vdec_hevc_core_dec_err_type  - core decode error type
 *
 * @TRANS_BUFFER_FULL: trans buffer is full
 * @SLICE_HEADER_FULL: slice header buffer is full
 */
enum vdec_hevc_core_dec_err_type {
        TRANS_BUFFER_FULL = 1,
        SLICE_HEADER_FULL,
};

/**
 * struct mtk_hevc_dpb_info  - hevc dpb information
 *
 * @y_dma_addr:     Y plane physical address
 * @c_dma_addr:     CbCr plane physical address
 * @reference_flag: reference picture flag (short/long term reference picture)
 * @field:          field picture flag
 */
struct mtk_hevc_dpb_info {
        dma_addr_t y_dma_addr;
        dma_addr_t c_dma_addr;
        int reference_flag;
        int field;
};

/*
 * struct mtk_hevc_sps_param  - parameters for sps
 */
struct mtk_hevc_sps_param {
        unsigned char video_parameter_set_id;
        unsigned char seq_parameter_set_id;
        unsigned short pic_width_in_luma_samples;
        unsigned short pic_height_in_luma_samples;
        unsigned char bit_depth_luma_minus8;
        unsigned char bit_depth_chroma_minus8;
        unsigned char log2_max_pic_order_cnt_lsb_minus4;
        unsigned char sps_max_dec_pic_buffering_minus1;
        unsigned char sps_max_num_reorder_pics;
        unsigned char sps_max_latency_increase_plus1;
        unsigned char log2_min_luma_coding_block_size_minus3;
        unsigned char log2_diff_max_min_luma_coding_block_size;
        unsigned char log2_min_luma_transform_block_size_minus2;
        unsigned char log2_diff_max_min_luma_transform_block_size;
        unsigned char max_transform_hierarchy_depth_inter;
        unsigned char max_transform_hierarchy_depth_intra;
        unsigned char pcm_sample_bit_depth_luma_minus1;
        unsigned char pcm_sample_bit_depth_chroma_minus1;
        unsigned char log2_min_pcm_luma_coding_block_size_minus3;
        unsigned char log2_diff_max_min_pcm_luma_coding_block_size;
        unsigned char num_short_term_ref_pic_sets;
        unsigned char num_long_term_ref_pics_sps;
        unsigned char chroma_format_idc;
        unsigned char sps_max_sub_layers_minus1;
        unsigned char separate_colour_plane;
        unsigned char scaling_list_enabled;
        unsigned char amp_enabled;
        unsigned char sample_adaptive_offset;
        unsigned char pcm_enabled;
        unsigned char pcm_loop_filter_disabled;
        unsigned char long_term_ref_pics_enabled;
        unsigned char sps_temporal_mvp_enabled;
        unsigned char strong_intra_smoothing_enabled;
        unsigned char reserved[5];
};

/*
 * struct mtk_hevc_pps_param  - parameters for pps
 */
struct mtk_hevc_pps_param {
        unsigned char pic_parameter_set_id;
        unsigned char num_extra_slice_header_bits;
        unsigned char num_ref_idx_l0_default_active_minus1;
        unsigned char num_ref_idx_l1_default_active_minus1;
        char init_qp_minus26;
        unsigned char diff_cu_qp_delta_depth;
        char pps_cb_qp_offset;
        char pps_cr_qp_offset;
        unsigned char num_tile_columns_minus1;
        unsigned char num_tile_rows_minus1;
        unsigned char column_width_minus1[20];
        unsigned char row_height_minus1[22];
        char pps_beta_offset_div2;
        char pps_tc_offset_div2;
        unsigned char log2_parallel_merge_level_minus2;
        char dependent_slice_segment_enabled;
        char output_flag_present;
        char sign_data_hiding_enabled;
        char cabac_init_present;
        char constrained_intra_pred;
        char transform_skip_enabled;
        char cu_qp_delta_enabled;
        char pps_slice_chroma_qp_offsets_present;
        char weighted_pred;
        char weighted_bipred;
        char transquant_bypass_enabled;
        char pps_flag_tiles_enabled;
        char entropy_coding_sync_enabled;
        char loop_filter_across_tiles_enabled;
        char pps_loop_filter_across_slices_enabled;
        char deblocking_filter_override_enabled;
        char pps_disable_deflocking_filter;
        char lists_modification_present;
        char slice_segment_header_extersion_present;
        char deblocking_filter_control_present;
        char uniform_spacing;
        char reserved[6];
};

/*
 * struct mtk_hevc_slice_header_param  - parameters for slice header
 */
struct mtk_hevc_slice_header_param {
        unsigned int    slice_type;
        unsigned int    num_active_ref_layer_pics;
        int             slice_qp;
        int             slice_qp_delta_cb;
        int             slice_qp_delta_cr;
        int             num_ref_idx[3];
        unsigned int    col_ref_idx;
        unsigned int    five_minus_max_num_merge_cand;
        int             slice_deblocking_filter_beta_offset_div2;
        int             slice_deblocking_filter_tc_offset_div2;
        unsigned char   sao_enable_flag;
        unsigned char   sao_enable_flag_chroma;
        unsigned char   cabac_init_flag;
        unsigned char   slice_tmvp_flags_present;
        unsigned char   col_from_l0_flag;
        unsigned char   mvd_l1_zero_flag;
        unsigned char   slice_loop_filter_across_slices_enabled_flag;
        unsigned char   deblocking_filter_disable_flag;
        unsigned int    slice_reg0;
        unsigned int    slice_reg1;
        unsigned int    slice_reg2;
        unsigned int    num_rps_curr_temp_list;
        unsigned int    ref_list_mode;
        int             str_num_delta_pocs;
        int             str_num_negtive_pos_pics;
        int             num_long_term;
        int             num_long_term_sps;
        unsigned int    max_cu_width;
        unsigned int    max_cu_height;
        unsigned int    num_entry_point_offsets;
        unsigned int    last_lcu_x_in_tile[17];
        unsigned int    last_lcu_y_in_tile[17];
        unsigned char   nal_unit_type;
};

/*
 * struct slice_api_hevc_scaling_matrix  - parameters for scaling list
 */
struct slice_api_hevc_scaling_matrix {
        unsigned char scaling_list_4x4[6][16];
        unsigned char scaling_list_8x8[6][64];
        unsigned char scaling_list_16x16[6][64];
        unsigned char scaling_list_32x32[2][64];
        unsigned char scaling_list_dc_coef_16x16[6];
        unsigned char scaling_list_dc_coef_32x32[2];
};

/*
 * struct slice_hevc_dpb_entry  - each dpb information
 */
struct slice_hevc_dpb_entry {
        u64 timestamp;
        unsigned char flags;
        unsigned char field_pic;
        int pic_order_cnt_val;
};

/*
 * struct slice_api_hevc_decode_param - parameters for decode.
 */
struct slice_api_hevc_decode_param {
        struct slice_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
        int pic_order_cnt_val;
        unsigned short short_term_ref_pic_set_size;
        unsigned short long_term_ref_pic_set_size;
        unsigned char num_active_dpb_entries;
        unsigned char num_poc_st_curr_before;
        unsigned char num_poc_st_curr_after;
        unsigned char num_poc_lt_curr;
        unsigned char poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
        unsigned char poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
        unsigned char poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
        unsigned char num_delta_pocs_of_ref_rps_idx;
        int flags;
};

/**
 * struct hevc_fb - hevc 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 hevc_fb {
        u64 vdec_fb_va;
        u64 y_fb_dma;
        u64 c_fb_dma;
        s32 poc;
        u32 reserved;
};

/**
 * struct vdec_hevc_slice_lat_dec_param  - parameters for decode current frame
 *
 * @sps:            hevc sps syntax parameters
 * @pps:            hevc pps syntax parameters
 * @slice_header:   hevc slice header syntax parameters
 * @scaling_matrix: hevc scaling list parameters
 * @decode_params:  decoder parameters of each frame used for hardware decode
 * @hevc_dpb_info:  dpb reference list
 */
struct vdec_hevc_slice_lat_dec_param {
        struct mtk_hevc_sps_param sps;
        struct mtk_hevc_pps_param pps;
        struct mtk_hevc_slice_header_param slice_header;
        struct slice_api_hevc_scaling_matrix scaling_matrix;
        struct slice_api_hevc_decode_param decode_params;
        struct mtk_hevc_dpb_info hevc_dpb_info[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
};

/**
 * struct vdec_hevc_slice_info - decode information
 *
 * @wdma_end_addr_offset: wdma end address offset
 * @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
 */
struct vdec_hevc_slice_info {
        u64 wdma_end_addr_offset;
        u64 timeout;
        u64 vdec_fb_va;
        u32 crc[8];
};

/*
 * struct vdec_hevc_slice_mem - memory address and size
 */
struct vdec_hevc_slice_mem {
        union {
                u64 buf;
                dma_addr_t dma_addr;
        };
        union {
                size_t size;
                dma_addr_t dma_addr_end;
                u64 padding;
        };
};

/**
 * struct vdec_hevc_slice_fb - frame buffer for decoding
 * @y:  current y buffer address info
 * @c:  current c buffer address info
 */
struct vdec_hevc_slice_fb {
        struct vdec_hevc_slice_mem y;
        struct vdec_hevc_slice_mem c;
};

/**
 * struct vdec_hevc_slice_vsi - shared memory for decode information exchange
 *        between SCP and Host.
 *
 * @bs:                input buffer info
 *
 * @ube:               ube buffer
 * @trans:             transcoded buffer
 * @err_map:           err map buffer
 * @slice_bc:          slice bc buffer
 * @wrap:              temp buffer
 *
 * @fb:                current y/c buffer
 * @mv_buf_dma:        HW working motion vector buffer
 * @dec:               decode information (AP-R, VPU-W)
 * @hevc_slice_params: decode parameters for hw used
 */
struct vdec_hevc_slice_vsi {
        /* used in LAT stage */
        struct vdec_hevc_slice_mem bs;

        struct vdec_hevc_slice_mem ube;
        struct vdec_hevc_slice_mem trans;
        struct vdec_hevc_slice_mem err_map;
        struct vdec_hevc_slice_mem slice_bc;
        struct vdec_hevc_slice_mem wrap;

        struct vdec_hevc_slice_fb fb;
        struct vdec_hevc_slice_mem mv_buf_dma[HEVC_MAX_MV_NUM];
        struct vdec_hevc_slice_info dec;
        struct vdec_hevc_slice_lat_dec_param hevc_slice_params;
};

/**
 * struct vdec_hevc_slice_share_info - shared information used to exchange
 *                                     message between lat and core
 *
 * @sps:               sequence header information from user space
 * @dec_params:        decoder params from user space
 * @hevc_slice_params: decoder params used for hardware
 * @trans:             trans buffer dma address
 */
struct vdec_hevc_slice_share_info {
        struct v4l2_ctrl_hevc_sps sps;
        struct v4l2_ctrl_hevc_decode_params dec_params;
        struct vdec_hevc_slice_lat_dec_param hevc_slice_params;
        struct vdec_hevc_slice_mem trans;
};

/**
 * struct vdec_hevc_slice_inst - hevc decoder instance
 *
 * @slice_dec_num:      Number of frames to be decoded
 * @ctx:                point to mtk_vcodec_dec_ctx
 * @mv_buf:             HW working motion vector buffer
 * @vpu:                VPU instance
 * @vsi:                vsi used for lat
 * @vsi_core:           vsi used for core
 * @wrap_addr:          wrap address used for hevc
 *
 * @hevc_slice_param:   the parameters that hardware use to decode
 *
 * @resolution_changed: resolution changed
 * @realloc_mv_buf:     reallocate mv buffer
 * @cap_num_planes:     number of capture queue plane
 */
struct vdec_hevc_slice_inst {
        unsigned int slice_dec_num;
        struct mtk_vcodec_dec_ctx *ctx;
        struct mtk_vcodec_mem mv_buf[HEVC_MAX_MV_NUM];
        struct vdec_vpu_inst vpu;
        struct vdec_hevc_slice_vsi *vsi;
        struct vdec_hevc_slice_vsi *vsi_core;
        struct mtk_vcodec_mem wrap_addr;

        struct vdec_hevc_slice_lat_dec_param hevc_slice_param;

        unsigned int resolution_changed;
        unsigned int realloc_mv_buf;
        unsigned int cap_num_planes;
};

static unsigned int vdec_hevc_get_mv_buf_size(unsigned int width, unsigned int height)
{
        const unsigned int unit_size = (width / 16) * (height / 16) + 8;

        return 64 * unit_size;
}

static void *vdec_hevc_get_ctrl_ptr(struct mtk_vcodec_dec_ctx *ctx, int id)
{
        struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id);

        if (!ctrl)
                return ERR_PTR(-EINVAL);

        return ctrl->p_cur.p;
}

static void vdec_hevc_fill_dpb_info(struct mtk_vcodec_dec_ctx *ctx,
                                    struct slice_api_hevc_decode_param *decode_params,
                                    struct mtk_hevc_dpb_info *hevc_dpb_info)
{
        const struct slice_hevc_dpb_entry *dpb;
        struct vb2_queue *vq;
        struct vb2_buffer *vb;
        int index;

        vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
        for (index = 0; index < V4L2_HEVC_DPB_ENTRIES_NUM_MAX; index++) {
                dpb = &decode_params->dpb[index];
                if (index >= decode_params->num_active_dpb_entries)
                        continue;

                vb = vb2_find_buffer(vq, dpb->timestamp);
                if (!vb) {
                        dev_err(&ctx->dev->plat_dev->dev,
                                "Reference invalid: dpb_index(%d) timestamp(%lld)",
                                index, dpb->timestamp);
                        continue;
                }

                hevc_dpb_info[index].field = dpb->field_pic;

                hevc_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)
                        hevc_dpb_info[index].c_dma_addr = vb2_dma_contig_plane_dma_addr(vb, 1);
                else
                        hevc_dpb_info[index].c_dma_addr =
                                hevc_dpb_info[index].y_dma_addr + ctx->picinfo.fb_sz[0];
        }
}

static void vdec_hevc_copy_sps_params(struct mtk_hevc_sps_param *dst_param,
                                      const struct v4l2_ctrl_hevc_sps *src_param)
{
        GET_HEVC_VDEC_PARAM(video_parameter_set_id);
        GET_HEVC_VDEC_PARAM(seq_parameter_set_id);
        GET_HEVC_VDEC_PARAM(pic_width_in_luma_samples);
        GET_HEVC_VDEC_PARAM(pic_height_in_luma_samples);
        GET_HEVC_VDEC_PARAM(bit_depth_luma_minus8);
        GET_HEVC_VDEC_PARAM(bit_depth_chroma_minus8);
        GET_HEVC_VDEC_PARAM(log2_max_pic_order_cnt_lsb_minus4);
        GET_HEVC_VDEC_PARAM(sps_max_dec_pic_buffering_minus1);
        GET_HEVC_VDEC_PARAM(sps_max_num_reorder_pics);
        GET_HEVC_VDEC_PARAM(sps_max_latency_increase_plus1);
        GET_HEVC_VDEC_PARAM(log2_min_luma_coding_block_size_minus3);
        GET_HEVC_VDEC_PARAM(log2_diff_max_min_luma_coding_block_size);
        GET_HEVC_VDEC_PARAM(log2_min_luma_transform_block_size_minus2);
        GET_HEVC_VDEC_PARAM(log2_diff_max_min_luma_transform_block_size);
        GET_HEVC_VDEC_PARAM(max_transform_hierarchy_depth_inter);
        GET_HEVC_VDEC_PARAM(max_transform_hierarchy_depth_intra);
        GET_HEVC_VDEC_PARAM(pcm_sample_bit_depth_luma_minus1);
        GET_HEVC_VDEC_PARAM(pcm_sample_bit_depth_chroma_minus1);
        GET_HEVC_VDEC_PARAM(log2_min_pcm_luma_coding_block_size_minus3);
        GET_HEVC_VDEC_PARAM(log2_diff_max_min_pcm_luma_coding_block_size);
        GET_HEVC_VDEC_PARAM(num_short_term_ref_pic_sets);
        GET_HEVC_VDEC_PARAM(num_long_term_ref_pics_sps);
        GET_HEVC_VDEC_PARAM(chroma_format_idc);
        GET_HEVC_VDEC_PARAM(sps_max_sub_layers_minus1);

        GET_HEVC_VDEC_FLAG(separate_colour_plane,
                           V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE);
        GET_HEVC_VDEC_FLAG(scaling_list_enabled,
                           V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED);
        GET_HEVC_VDEC_FLAG(amp_enabled,
                           V4L2_HEVC_SPS_FLAG_AMP_ENABLED);
        GET_HEVC_VDEC_FLAG(sample_adaptive_offset,
                           V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET);
        GET_HEVC_VDEC_FLAG(pcm_enabled,
                           V4L2_HEVC_SPS_FLAG_PCM_ENABLED);
        GET_HEVC_VDEC_FLAG(pcm_loop_filter_disabled,
                           V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED);
        GET_HEVC_VDEC_FLAG(long_term_ref_pics_enabled,
                           V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT);
        GET_HEVC_VDEC_FLAG(sps_temporal_mvp_enabled,
                           V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED);
        GET_HEVC_VDEC_FLAG(strong_intra_smoothing_enabled,
                           V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED);
}

static void vdec_hevc_copy_pps_params(struct mtk_hevc_pps_param *dst_param,
                                      const struct v4l2_ctrl_hevc_pps *src_param)
{
        int i;

        GET_HEVC_VDEC_PARAM(pic_parameter_set_id);
        GET_HEVC_VDEC_PARAM(num_extra_slice_header_bits);
        GET_HEVC_VDEC_PARAM(num_ref_idx_l0_default_active_minus1);
        GET_HEVC_VDEC_PARAM(num_ref_idx_l1_default_active_minus1);
        GET_HEVC_VDEC_PARAM(init_qp_minus26);
        GET_HEVC_VDEC_PARAM(diff_cu_qp_delta_depth);
        GET_HEVC_VDEC_PARAM(pps_cb_qp_offset);
        GET_HEVC_VDEC_PARAM(pps_cr_qp_offset);
        GET_HEVC_VDEC_PARAM(num_tile_columns_minus1);
        GET_HEVC_VDEC_PARAM(num_tile_rows_minus1);
        GET_HEVC_VDEC_PARAM(init_qp_minus26);
        GET_HEVC_VDEC_PARAM(diff_cu_qp_delta_depth);
        GET_HEVC_VDEC_PARAM(pic_parameter_set_id);
        GET_HEVC_VDEC_PARAM(num_extra_slice_header_bits);
        GET_HEVC_VDEC_PARAM(num_ref_idx_l0_default_active_minus1);
        GET_HEVC_VDEC_PARAM(num_ref_idx_l1_default_active_minus1);
        GET_HEVC_VDEC_PARAM(pps_beta_offset_div2);
        GET_HEVC_VDEC_PARAM(pps_tc_offset_div2);
        GET_HEVC_VDEC_PARAM(log2_parallel_merge_level_minus2);

        for (i = 0; i < ARRAY_SIZE(src_param->column_width_minus1); i++)
                GET_HEVC_VDEC_PARAM(column_width_minus1[i]);
        for (i = 0; i < ARRAY_SIZE(src_param->row_height_minus1); i++)
                GET_HEVC_VDEC_PARAM(row_height_minus1[i]);

        GET_HEVC_VDEC_FLAG(dependent_slice_segment_enabled,
                           V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED);
        GET_HEVC_VDEC_FLAG(output_flag_present,
                           V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT);
        GET_HEVC_VDEC_FLAG(sign_data_hiding_enabled,
                           V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED);
        GET_HEVC_VDEC_FLAG(cabac_init_present,
                           V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT);
        GET_HEVC_VDEC_FLAG(constrained_intra_pred,
                           V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED);
        GET_HEVC_VDEC_FLAG(transform_skip_enabled,
                           V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED);
        GET_HEVC_VDEC_FLAG(cu_qp_delta_enabled,
                           V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED);
        GET_HEVC_VDEC_FLAG(pps_slice_chroma_qp_offsets_present,
                           V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT);
        GET_HEVC_VDEC_FLAG(weighted_pred,
                           V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED);
        GET_HEVC_VDEC_FLAG(weighted_bipred,
                           V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED);
        GET_HEVC_VDEC_FLAG(transquant_bypass_enabled,
                           V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED);
        GET_HEVC_VDEC_FLAG(pps_flag_tiles_enabled,
                           V4L2_HEVC_PPS_FLAG_TILES_ENABLED);
        GET_HEVC_VDEC_FLAG(entropy_coding_sync_enabled,
                           V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED);
        GET_HEVC_VDEC_FLAG(loop_filter_across_tiles_enabled,
                           V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED);
        GET_HEVC_VDEC_FLAG(pps_loop_filter_across_slices_enabled,
                           V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED);
        GET_HEVC_VDEC_FLAG(deblocking_filter_override_enabled,
                           V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED);
        GET_HEVC_VDEC_FLAG(pps_disable_deflocking_filter,
                           V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER);
        GET_HEVC_VDEC_FLAG(lists_modification_present,
                           V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT);
        GET_HEVC_VDEC_FLAG(slice_segment_header_extersion_present,
                           V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT);
        GET_HEVC_VDEC_FLAG(deblocking_filter_control_present,
                           V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT);
        GET_HEVC_VDEC_FLAG(uniform_spacing,
                           V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING);
}

static void vdec_hevc_copy_scaling_matrix(struct slice_api_hevc_scaling_matrix *dst_matrix,
                                          const struct v4l2_ctrl_hevc_scaling_matrix *src_matrix)
{
        memcpy(dst_matrix, src_matrix, sizeof(*src_matrix));
}

static void
vdec_hevc_copy_decode_params(struct slice_api_hevc_decode_param *dst_param,
                             const struct v4l2_ctrl_hevc_decode_params *src_param,
                             const struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX])
{
        struct slice_hevc_dpb_entry *dst_entry;
        const struct v4l2_hevc_dpb_entry *src_entry;
        int i;

        for (i = 0; i < ARRAY_SIZE(dst_param->dpb); i++) {
                dst_entry = &dst_param->dpb[i];
                src_entry = &dpb[i];

                dst_entry->timestamp = src_entry->timestamp;
                dst_entry->flags = src_entry->flags;
                dst_entry->field_pic = src_entry->field_pic;
                dst_entry->pic_order_cnt_val = src_entry->pic_order_cnt_val;

                GET_HEVC_VDEC_PARAM(poc_st_curr_before[i]);
                GET_HEVC_VDEC_PARAM(poc_st_curr_after[i]);
                GET_HEVC_VDEC_PARAM(poc_lt_curr[i]);
        }

        GET_HEVC_VDEC_PARAM(pic_order_cnt_val);
        GET_HEVC_VDEC_PARAM(short_term_ref_pic_set_size);
        GET_HEVC_VDEC_PARAM(long_term_ref_pic_set_size);
        GET_HEVC_VDEC_PARAM(num_active_dpb_entries);
        GET_HEVC_VDEC_PARAM(num_poc_st_curr_before);
        GET_HEVC_VDEC_PARAM(num_poc_st_curr_after);
        GET_HEVC_VDEC_PARAM(num_delta_pocs_of_ref_rps_idx);
        GET_HEVC_VDEC_PARAM(num_poc_lt_curr);
        GET_HEVC_VDEC_PARAM(flags);
}

static int vdec_hevc_slice_fill_decode_parameters(struct vdec_hevc_slice_inst *inst,
                                                  struct vdec_hevc_slice_share_info *share_info)
{
        struct vdec_hevc_slice_lat_dec_param *slice_param = &inst->vsi->hevc_slice_params;
        const struct v4l2_ctrl_hevc_decode_params *dec_params;
        const struct v4l2_ctrl_hevc_scaling_matrix *src_matrix;
        const struct v4l2_ctrl_hevc_sps *sps;
        const struct v4l2_ctrl_hevc_pps *pps;

        dec_params =
                vdec_hevc_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_HEVC_DECODE_PARAMS);
        if (IS_ERR(dec_params))
                return PTR_ERR(dec_params);

        src_matrix =
                vdec_hevc_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_HEVC_SCALING_MATRIX);
        if (IS_ERR(src_matrix))
                return PTR_ERR(src_matrix);

        sps = vdec_hevc_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_HEVC_SPS);
        if (IS_ERR(sps))
                return PTR_ERR(sps);

        pps = vdec_hevc_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_HEVC_PPS);
        if (IS_ERR(pps))
                return PTR_ERR(pps);

        vdec_hevc_copy_sps_params(&slice_param->sps, sps);
        vdec_hevc_copy_pps_params(&slice_param->pps, pps);
        vdec_hevc_copy_scaling_matrix(&slice_param->scaling_matrix, src_matrix);

        memcpy(&share_info->sps, sps, sizeof(*sps));
        memcpy(&share_info->dec_params, dec_params, sizeof(*dec_params));

        slice_param->decode_params.num_poc_st_curr_before = dec_params->num_poc_st_curr_before;
        slice_param->decode_params.num_poc_st_curr_after = dec_params->num_poc_st_curr_after;
        slice_param->decode_params.num_poc_lt_curr = dec_params->num_poc_lt_curr;
        slice_param->decode_params.num_delta_pocs_of_ref_rps_idx =
                dec_params->num_delta_pocs_of_ref_rps_idx;

        return 0;
}

static void vdec_hevc_slice_fill_decode_reflist(struct vdec_hevc_slice_inst *inst,
                                                struct vdec_hevc_slice_lat_dec_param *slice_param,
                                                struct vdec_hevc_slice_share_info *share_info)
{
        struct v4l2_ctrl_hevc_decode_params *dec_params = &share_info->dec_params;

        vdec_hevc_copy_decode_params(&slice_param->decode_params, dec_params,
                                     share_info->dec_params.dpb);

        vdec_hevc_fill_dpb_info(inst->ctx, &slice_param->decode_params,
                                slice_param->hevc_dpb_info);
}

static int vdec_hevc_slice_alloc_mv_buf(struct vdec_hevc_slice_inst *inst,
                                        struct vdec_pic_info *pic)
{
        unsigned int buf_sz = vdec_hevc_get_mv_buf_size(pic->buf_w, pic->buf_h);
        struct mtk_vcodec_mem *mem;
        int i, err;

        mtk_v4l2_vdec_dbg(3, inst->ctx, "allocate mv buffer size = 0x%x", buf_sz);
        for (i = 0; i < HEVC_MAX_MV_NUM; i++) {
                mem = &inst->mv_buf[i];
                if (mem->va)
                        mtk_vcodec_mem_free(inst->ctx, mem);
                mem->size = buf_sz;
                err = mtk_vcodec_mem_alloc(inst->ctx, mem);
                if (err) {
                        mtk_vdec_err(inst->ctx, "failed to allocate mv buf");
                        return err;
                }
        }

        return 0;
}

static void vdec_hevc_slice_free_mv_buf(struct vdec_hevc_slice_inst *inst)
{
        int i;
        struct mtk_vcodec_mem *mem;

        for (i = 0; i < HEVC_MAX_MV_NUM; i++) {
                mem = &inst->mv_buf[i];
                if (mem->va)
                        mtk_vcodec_mem_free(inst->ctx, mem);
        }
}

static void vdec_hevc_slice_get_pic_info(struct vdec_hevc_slice_inst *inst)
{
        struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
        u32 data[3];

        data[0] = ctx->picinfo.pic_w;
        data[1] = ctx->picinfo.pic_h;
        data[2] = ctx->capture_fourcc;
        vpu_dec_get_param(&inst->vpu, data, 3, GET_PARAM_PIC_INFO);

        ctx->picinfo.buf_w = ALIGN(ctx->picinfo.pic_w, VCODEC_DEC_ALIGNED_64);
        ctx->picinfo.buf_h = ALIGN(ctx->picinfo.pic_h, VCODEC_DEC_ALIGNED_64);
        ctx->picinfo.fb_sz[0] = inst->vpu.fb_sz[0];
        ctx->picinfo.fb_sz[1] = inst->vpu.fb_sz[1];
        inst->cap_num_planes =
                ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes;

        mtk_vdec_debug(ctx, "pic(%d, %d), buf(%d, %d)",
                       ctx->picinfo.pic_w, ctx->picinfo.pic_h,
                       ctx->picinfo.buf_w, ctx->picinfo.buf_h);
        mtk_vdec_debug(ctx, "Y/C(%d, %d)", ctx->picinfo.fb_sz[0],
                       ctx->picinfo.fb_sz[1]);

        if (ctx->last_decoded_picinfo.pic_w != ctx->picinfo.pic_w ||
            ctx->last_decoded_picinfo.pic_h != ctx->picinfo.pic_h) {
                inst->resolution_changed = true;
                if (ctx->last_decoded_picinfo.buf_w != ctx->picinfo.buf_w ||
                    ctx->last_decoded_picinfo.buf_h != ctx->picinfo.buf_h)
                        inst->realloc_mv_buf = true;

                mtk_v4l2_vdec_dbg(1, inst->ctx, "resChg: (%d %d) : old(%d, %d) -> new(%d, %d)",
                                  inst->resolution_changed,
                                  inst->realloc_mv_buf,
                                  ctx->last_decoded_picinfo.pic_w,
                                  ctx->last_decoded_picinfo.pic_h,
                                  ctx->picinfo.pic_w, ctx->picinfo.pic_h);
        }
}

static void vdec_hevc_slice_get_crop_info(struct vdec_hevc_slice_inst *inst,
                                          struct v4l2_rect *cr)
{
        cr->left = 0;
        cr->top = 0;
        cr->width = inst->ctx->picinfo.pic_w;
        cr->height = inst->ctx->picinfo.pic_h;

        mtk_vdec_debug(inst->ctx, "l=%d, t=%d, w=%d, h=%d",
                       cr->left, cr->top, cr->width, cr->height);
}

static int vdec_hevc_slice_setup_lat_buffer(struct vdec_hevc_slice_inst *inst,
                                            struct mtk_vcodec_mem *bs,
                                            struct vdec_lat_buf *lat_buf,
                                            bool *res_chg)
{
        struct mtk_vcodec_mem *mem;
        struct mtk_video_dec_buf *src_buf_info;
        struct vdec_hevc_slice_share_info *share_info;
        int i, err;

        inst->vsi->bs.dma_addr = (u64)bs->dma_addr;
        inst->vsi->bs.size = bs->size;

        src_buf_info = container_of(bs, struct mtk_video_dec_buf, bs_buffer);
        lat_buf->src_buf_req = src_buf_info->m2m_buf.vb.vb2_buf.req_obj.req;
        v4l2_m2m_buf_copy_metadata(&src_buf_info->m2m_buf.vb,
                                   &lat_buf->ts_info);

        *res_chg = inst->resolution_changed;
        if (inst->resolution_changed) {
                mtk_vdec_debug(inst->ctx, "- resolution changed -");
                if (inst->realloc_mv_buf) {
                        err = vdec_hevc_slice_alloc_mv_buf(inst, &inst->ctx->picinfo);
                        inst->realloc_mv_buf = false;
                        if (err)
                                return err;
                }
                inst->resolution_changed = false;
        }

        for (i = 0; i < HEVC_MAX_MV_NUM; i++) {
                mem = &inst->mv_buf[i];
                inst->vsi->mv_buf_dma[i].dma_addr = mem->dma_addr;
                inst->vsi->mv_buf_dma[i].size = mem->size;
        }

        inst->vsi->ube.dma_addr = lat_buf->ctx->msg_queue.wdma_addr.dma_addr;
        inst->vsi->ube.size = lat_buf->ctx->msg_queue.wdma_addr.size;

        inst->vsi->err_map.dma_addr = lat_buf->wdma_err_addr.dma_addr;
        inst->vsi->err_map.size = lat_buf->wdma_err_addr.size;

        inst->vsi->slice_bc.dma_addr = lat_buf->slice_bc_addr.dma_addr;
        inst->vsi->slice_bc.size = lat_buf->slice_bc_addr.size;

        inst->vsi->trans.dma_addr_end = inst->ctx->msg_queue.wdma_rptr_addr;
        inst->vsi->trans.dma_addr = inst->ctx->msg_queue.wdma_wptr_addr;

        share_info = lat_buf->private_data;
        share_info->trans.dma_addr = inst->vsi->trans.dma_addr;
        share_info->trans.dma_addr_end = inst->vsi->trans.dma_addr_end;

        mtk_vdec_debug(inst->ctx, "lat: ube addr/size(0x%llx 0x%llx) err:0x%llx",
                       inst->vsi->ube.buf,
                       inst->vsi->ube.padding,
                       inst->vsi->err_map.buf);

        mtk_vdec_debug(inst->ctx, "slice addr/size(0x%llx 0x%llx) trans start/end((0x%llx 0x%llx))",
                       inst->vsi->slice_bc.buf,
                       inst->vsi->slice_bc.padding,
                       inst->vsi->trans.buf,
                       inst->vsi->trans.padding);

        return 0;
}

static int vdec_hevc_slice_setup_core_buffer(struct vdec_hevc_slice_inst *inst,
                                             struct vdec_hevc_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;
        int i;

        fb = ctx->dev->vdec_pdata->get_cap_buffer(ctx);
        if (!fb) {
                mtk_vdec_err(inst->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(inst->ctx, "[hevc-core] y/c addr = 0x%llx 0x%llx", y_fb_dma, c_fb_dma);

        inst->vsi_core->fb.y.dma_addr = y_fb_dma;
        inst->vsi_core->fb.y.size = ctx->picinfo.fb_sz[0];
        inst->vsi_core->fb.c.dma_addr = c_fb_dma;
        inst->vsi_core->fb.c.size = ctx->picinfo.fb_sz[1];

        inst->vsi_core->dec.vdec_fb_va = (unsigned long)fb;

        inst->vsi_core->ube.dma_addr = lat_buf->ctx->msg_queue.wdma_addr.dma_addr;
        inst->vsi_core->ube.size = lat_buf->ctx->msg_queue.wdma_addr.size;

        inst->vsi_core->err_map.dma_addr = lat_buf->wdma_err_addr.dma_addr;
        inst->vsi_core->err_map.size = lat_buf->wdma_err_addr.size;

        inst->vsi_core->slice_bc.dma_addr = lat_buf->slice_bc_addr.dma_addr;
        inst->vsi_core->slice_bc.size = lat_buf->slice_bc_addr.size;

        inst->vsi_core->trans.dma_addr = share_info->trans.dma_addr;
        inst->vsi_core->trans.dma_addr_end = share_info->trans.dma_addr_end;

        inst->vsi_core->wrap.dma_addr = inst->wrap_addr.dma_addr;
        inst->vsi_core->wrap.size = inst->wrap_addr.size;

        for (i = 0; i < HEVC_MAX_MV_NUM; i++) {
                mem = &inst->mv_buf[i];
                inst->vsi_core->mv_buf_dma[i].dma_addr = mem->dma_addr;
                inst->vsi_core->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);

        return 0;
}

static int vdec_hevc_slice_init(struct mtk_vcodec_dec_ctx *ctx)
{
        struct vdec_hevc_slice_inst *inst;
        int err, vsi_size;

        inst = kzalloc_obj(*inst);
        if (!inst)
                return -ENOMEM;

        inst->ctx = ctx;

        inst->vpu.id = SCP_IPI_VDEC_LAT;
        inst->vpu.core_id = SCP_IPI_VDEC_CORE;
        inst->vpu.ctx = ctx;
        inst->vpu.codec_type = ctx->current_codec;
        inst->vpu.capture_type = ctx->capture_fourcc;

        err = vpu_dec_init(&inst->vpu);
        if (err) {
                mtk_vdec_err(ctx, "vdec_hevc init err=%d", err);
                goto error_free_inst;
        }

        vsi_size = round_up(sizeof(struct vdec_hevc_slice_vsi), VCODEC_DEC_ALIGNED_64);
        inst->vsi = inst->vpu.vsi;
        inst->vsi_core =
                (struct vdec_hevc_slice_vsi *)(((char *)inst->vpu.vsi) + vsi_size);

        inst->resolution_changed = true;
        inst->realloc_mv_buf = true;

        inst->wrap_addr.size = VDEC_HEVC_WRAP_SZ;
        err = mtk_vcodec_mem_alloc(ctx, &inst->wrap_addr);
        if (err)
                goto error_free_inst;

        mtk_vdec_debug(ctx, "lat struct size = %d,%d,%d,%d vsi: %d\n",
                       (int)sizeof(struct mtk_hevc_sps_param),
                       (int)sizeof(struct mtk_hevc_pps_param),
                       (int)sizeof(struct vdec_hevc_slice_lat_dec_param),
                       (int)sizeof(struct mtk_hevc_dpb_info),
                         vsi_size);
        mtk_vdec_debug(ctx, "lat hevc instance >> %p, codec_type = 0x%x",
                       inst, inst->vpu.codec_type);

        ctx->drv_handle = inst;
        return 0;
error_free_inst:
        kfree(inst);
        return err;
}

static void vdec_hevc_slice_deinit(void *h_vdec)
{
        struct vdec_hevc_slice_inst *inst = h_vdec;
        struct mtk_vcodec_mem *mem;

        vpu_dec_deinit(&inst->vpu);
        vdec_hevc_slice_free_mv_buf(inst);

        mem = &inst->wrap_addr;
        if (mem->va)
                mtk_vcodec_mem_free(inst->ctx, mem);

        vdec_msg_queue_deinit(&inst->ctx->msg_queue, inst->ctx);
        kfree(inst);
}

static int vdec_hevc_slice_core_decode(struct vdec_lat_buf *lat_buf)
{
        int err, timeout;
        struct mtk_vcodec_dec_ctx *ctx = lat_buf->ctx;
        struct vdec_hevc_slice_inst *inst = ctx->drv_handle;
        struct vdec_hevc_slice_share_info *share_info = lat_buf->private_data;
        struct vdec_vpu_inst *vpu = &inst->vpu;

        mtk_vdec_debug(ctx, "[hevc-core] vdec_hevc core decode");
        memcpy(&inst->vsi_core->hevc_slice_params, &share_info->hevc_slice_params,
               sizeof(share_info->hevc_slice_params));

        err = vdec_hevc_slice_setup_core_buffer(inst, share_info, lat_buf);
        if (err)
                goto vdec_dec_end;

        vdec_hevc_slice_fill_decode_reflist(inst, &inst->vsi_core->hevc_slice_params,
                                            share_info);
        err = vpu_dec_core(vpu);
        if (err) {
                mtk_vdec_err(ctx, "core decode err=%d", err);
                goto vdec_dec_end;
        }

        /* wait decoder done interrupt */
        timeout = mtk_vcodec_wait_for_done_ctx(inst->ctx, MTK_INST_IRQ_RECEIVED,
                                               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;

        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]);

vdec_dec_end:
        vdec_msg_queue_update_ube_rptr(&lat_buf->ctx->msg_queue, share_info->trans.dma_addr_end);
        ctx->dev->vdec_pdata->cap_to_disp(ctx, !!err, lat_buf->src_buf_req);
        mtk_vdec_debug(ctx, "core decode done err=%d", err);
        ctx->decoded_frame_cnt++;
        return 0;
}

static int vdec_hevc_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
                                      struct vdec_fb *fb, bool *res_chg)
{
        struct vdec_hevc_slice_inst *inst = h_vdec;
        struct vdec_vpu_inst *vpu = &inst->vpu;
        int err, timeout = 0;
        unsigned int data[2];
        struct vdec_lat_buf *lat_buf;
        struct vdec_hevc_slice_share_info *share_info;

        if (vdec_msg_queue_init(&inst->ctx->msg_queue, inst->ctx,
                                vdec_hevc_slice_core_decode,
                                sizeof(*share_info)))
                return -ENOMEM;

        /* bs NULL means flush decoder */
        if (!bs) {
                vdec_msg_queue_wait_lat_buf_full(&inst->ctx->msg_queue);
                return vpu_dec_reset(vpu);
        }

        lat_buf = vdec_msg_queue_dqbuf(&inst->ctx->msg_queue.lat_ctx);
        if (!lat_buf) {
                mtk_vdec_debug(inst->ctx, "failed to get lat buffer");
                return -EAGAIN;
        }

        share_info = lat_buf->private_data;
        err = vdec_hevc_slice_fill_decode_parameters(inst, share_info);
        if (err)
                goto err_free_fb_out;

        err = vdec_hevc_slice_setup_lat_buffer(inst, bs, lat_buf, res_chg);
        if (err)
                goto err_free_fb_out;

        err = vpu_dec_start(vpu, data, 2);
        if (err) {
                mtk_vdec_debug(inst->ctx, "lat decode err: %d", err);
                goto err_free_fb_out;
        }

        if (IS_VDEC_INNER_RACING(inst->ctx->dev->dec_capability)) {
                memcpy(&share_info->hevc_slice_params, &inst->vsi->hevc_slice_params,
                       sizeof(share_info->hevc_slice_params));
                vdec_msg_queue_qbuf(&inst->ctx->msg_queue.core_ctx, lat_buf);
        }

        /* wait decoder done interrupt */
        timeout = mtk_vcodec_wait_for_done_ctx(inst->ctx, MTK_INST_IRQ_RECEIVED,
                                               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;

        err = vpu_dec_end(vpu);
        if (err == SLICE_HEADER_FULL || err == TRANS_BUFFER_FULL) {
                if (!IS_VDEC_INNER_RACING(inst->ctx->dev->dec_capability))
                        vdec_msg_queue_qbuf(&inst->ctx->msg_queue.lat_ctx, lat_buf);
                inst->slice_dec_num++;
                mtk_vdec_err(inst->ctx, "lat dec fail: pic_%d err:%d", inst->slice_dec_num, err);
                return -EINVAL;
        }

        share_info->trans.dma_addr_end = inst->ctx->msg_queue.wdma_addr.dma_addr +
                inst->vsi->dec.wdma_end_addr_offset;
        vdec_msg_queue_update_ube_wptr(&lat_buf->ctx->msg_queue, share_info->trans.dma_addr_end);

        if (!IS_VDEC_INNER_RACING(inst->ctx->dev->dec_capability)) {
                memcpy(&share_info->hevc_slice_params, &inst->vsi->hevc_slice_params,
                       sizeof(share_info->hevc_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->slice_dec_num++;
        return 0;
err_free_fb_out:
        vdec_msg_queue_qbuf(&inst->ctx->msg_queue.lat_ctx, lat_buf);
        mtk_vdec_err(inst->ctx, "slice dec number: %d err: %d", inst->slice_dec_num, err);
        return err;
}

static int vdec_hevc_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
                                  struct vdec_fb *unused, bool *res_chg)
{
        struct vdec_hevc_slice_inst *inst = h_vdec;

        if (!h_vdec || inst->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_PURE_SINGLE_CORE)
                return -EINVAL;

        return vdec_hevc_slice_lat_decode(h_vdec, bs, unused, res_chg);
}

static int vdec_hevc_slice_get_param(void *h_vdec, enum vdec_get_param_type type,
                                     void *out)
{
        struct vdec_hevc_slice_inst *inst = h_vdec;

        switch (type) {
        case GET_PARAM_PIC_INFO:
                vdec_hevc_slice_get_pic_info(inst);
                break;
        case GET_PARAM_DPB_SIZE:
                *(unsigned int *)out = 6;
                break;
        case GET_PARAM_CROP_INFO:
                vdec_hevc_slice_get_crop_info(inst, out);
                break;
        default:
                mtk_vdec_err(inst->ctx, "invalid get parameter type=%d", type);
                return -EINVAL;
        }
        return 0;
}

const struct vdec_common_if vdec_hevc_slice_multi_if = {
        .init           = vdec_hevc_slice_init,
        .decode         = vdec_hevc_slice_decode,
        .get_param      = vdec_hevc_slice_get_param,
        .deinit         = vdec_hevc_slice_deinit,
};