drivers/staging/media/hantro/hantro_g2_hevc_dec.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Hantro VPU HEVC codec driver
   4  *
   5  * Copyright (C) 2020 Safran Passenger Innovations LLC
   6  */
   7
   8 #include "hantro_hw.h"
   9 #include "hantro_g2_regs.h"
  10
  11 #define G2_ALIGN        16
  12
  13 static size_t hantro_hevc_chroma_offset(struct hantro_ctx *ctx)
  14 {
  15         return ctx->dst_fmt.width * ctx->dst_fmt.height;
  16 }
  17
  18 static size_t hantro_hevc_motion_vectors_offset(struct hantro_ctx *ctx)
  19 {
  20         size_t cr_offset = hantro_hevc_chroma_offset(ctx);
  21
  22         return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
  23 }
  24
  25 static void prepare_tile_info_buffer(struct hantro_ctx *ctx)
  26 {
  27         struct hantro_dev *vpu = ctx->dev;
  28         const struct hantro_hevc_dec_ctrls *ctrls = &ctx->hevc_dec.ctrls;
  29         const struct v4l2_ctrl_hevc_pps *pps = ctrls->pps;
  30         const struct v4l2_ctrl_hevc_sps *sps = ctrls->sps;
  31         u16 *p = (u16 *)((u8 *)ctx->hevc_dec.tile_sizes.cpu);
  32         unsigned int num_tile_rows = pps->num_tile_rows_minus1 + 1;
  33         unsigned int num_tile_cols = pps->num_tile_columns_minus1 + 1;
  34         unsigned int pic_width_in_ctbs, pic_height_in_ctbs;
  35         unsigned int max_log2_ctb_size, ctb_size;
  36         bool tiles_enabled, uniform_spacing;
  37         u32 no_chroma = 0;
  38
  39         tiles_enabled = !!(pps->flags & V4L2_HEVC_PPS_FLAG_TILES_ENABLED);
  40         uniform_spacing = !!(pps->flags & V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING);
  41
  42         hantro_reg_write(vpu, &g2_tile_e, tiles_enabled);
  43
  44         max_log2_ctb_size = sps->log2_min_luma_coding_block_size_minus3 + 3 +
  45                             sps->log2_diff_max_min_luma_coding_block_size;
  46         pic_width_in_ctbs = (sps->pic_width_in_luma_samples +
  47                             (1 << max_log2_ctb_size) - 1) >> max_log2_ctb_size;
  48         pic_height_in_ctbs = (sps->pic_height_in_luma_samples + (1 << max_log2_ctb_size) - 1)
  49                              >> max_log2_ctb_size;
  50         ctb_size = 1 << max_log2_ctb_size;
  51
  52         vpu_debug(1, "Preparing tile sizes buffer for %dx%d CTBs (CTB size %d)\n",
  53                   pic_width_in_ctbs, pic_height_in_ctbs, ctb_size);
  54
  55         if (tiles_enabled) {
  56                 unsigned int i, j, h;
  57
  58                 vpu_debug(1, "Tiles enabled! %dx%d\n", num_tile_cols, num_tile_rows);
  59
  60                 hantro_reg_write(vpu, &g2_num_tile_rows, num_tile_rows);
  61                 hantro_reg_write(vpu, &g2_num_tile_cols, num_tile_cols);
  62
  63                 /* write width + height for each tile in pic */
  64                 if (!uniform_spacing) {
  65                         u32 tmp_w = 0, tmp_h = 0;
  66
  67                         for (i = 0; i < num_tile_rows; i++) {
  68                                 if (i == num_tile_rows - 1)
  69                                         h = pic_height_in_ctbs - tmp_h;
  70                                 else
  71                                         h = pps->row_height_minus1[i] + 1;
  72                                 tmp_h += h;
  73                                 if (i == 0 && h == 1 && ctb_size == 16)
  74                                         no_chroma = 1;
  75                                 for (j = 0, tmp_w = 0; j < num_tile_cols - 1; j++) {
  76                                         tmp_w += pps->column_width_minus1[j] + 1;
  77                                         *p++ = pps->column_width_minus1[j] + 1;
  78                                         *p++ = h;
  79                                         if (i == 0 && h == 1 && ctb_size == 16)
  80                                                 no_chroma = 1;
  81                                 }
  82                                 /* last column */
  83                                 *p++ = pic_width_in_ctbs - tmp_w;
  84                                 *p++ = h;
  85                         }
  86                 } else { /* uniform spacing */
  87                         u32 tmp, prev_h, prev_w;
  88
  89                         for (i = 0, prev_h = 0; i < num_tile_rows; i++) {
  90                                 tmp = (i + 1) * pic_height_in_ctbs / num_tile_rows;
  91                                 h = tmp - prev_h;
  92                                 prev_h = tmp;
  93                                 if (i == 0 && h == 1 && ctb_size == 16)
  94                                         no_chroma = 1;
  95                                 for (j = 0, prev_w = 0; j < num_tile_cols; j++) {
  96                                         tmp = (j + 1) * pic_width_in_ctbs / num_tile_cols;
  97                                         *p++ = tmp - prev_w;
  98                                         *p++ = h;
  99                                         if (j == 0 &&
 100                                             (pps->column_width_minus1[0] + 1) == 1 &&
 101                                             ctb_size == 16)
 102                                                 no_chroma = 1;
 103                                         prev_w = tmp;
 104                                 }
 105                         }
 106                 }
 107         } else {
 108                 hantro_reg_write(vpu, &g2_num_tile_rows, 1);
 109                 hantro_reg_write(vpu, &g2_num_tile_cols, 1);
 110
 111                 /* There's one tile, with dimensions equal to pic size. */
 112                 p[0] = pic_width_in_ctbs;
 113                 p[1] = pic_height_in_ctbs;
 114         }
 115
 116         if (no_chroma)
 117                 vpu_debug(1, "%s: no chroma!\n", __func__);
 118 }
 119
 120 static void set_params(struct hantro_ctx *ctx)
 121 {
 122         const struct hantro_hevc_dec_ctrls *ctrls = &ctx->hevc_dec.ctrls;
 123         const struct v4l2_ctrl_hevc_sps *sps = ctrls->sps;
 124         const struct v4l2_ctrl_hevc_pps *pps = ctrls->pps;
 125         const struct v4l2_ctrl_hevc_decode_params *decode_params = ctrls->decode_params;
 126         struct hantro_dev *vpu = ctx->dev;
 127         u32 min_log2_cb_size, max_log2_ctb_size, min_cb_size, max_ctb_size;
 128         u32 pic_width_in_min_cbs, pic_height_in_min_cbs;
 129         u32 pic_width_aligned, pic_height_aligned;
 130         u32 partial_ctb_x, partial_ctb_y;
 131
 132         hantro_reg_write(vpu, &g2_bit_depth_y_minus8, sps->bit_depth_luma_minus8);
 133         hantro_reg_write(vpu, &g2_bit_depth_c_minus8, sps->bit_depth_chroma_minus8);
 134
 135         hantro_reg_write(vpu, &g2_output_8_bits, 0);
 136
 137         hantro_reg_write(vpu, &g2_hdr_skip_length, ctrls->hevc_hdr_skip_length);
 138
 139         min_log2_cb_size = sps->log2_min_luma_coding_block_size_minus3 + 3;
 140         max_log2_ctb_size = min_log2_cb_size + sps->log2_diff_max_min_luma_coding_block_size;
 141
 142         hantro_reg_write(vpu, &g2_min_cb_size, min_log2_cb_size);
 143         hantro_reg_write(vpu, &g2_max_cb_size, max_log2_ctb_size);
 144
 145         min_cb_size = 1 << min_log2_cb_size;
 146         max_ctb_size = 1 << max_log2_ctb_size;
 147
 148         pic_width_in_min_cbs = sps->pic_width_in_luma_samples / min_cb_size;
 149         pic_height_in_min_cbs = sps->pic_height_in_luma_samples / min_cb_size;
 150         pic_width_aligned = ALIGN(sps->pic_width_in_luma_samples, max_ctb_size);
 151         pic_height_aligned = ALIGN(sps->pic_height_in_luma_samples, max_ctb_size);
 152
 153         partial_ctb_x = !!(sps->pic_width_in_luma_samples != pic_width_aligned);
 154         partial_ctb_y = !!(sps->pic_height_in_luma_samples != pic_height_aligned);
 155
 156         hantro_reg_write(vpu, &g2_partial_ctb_x, partial_ctb_x);
 157         hantro_reg_write(vpu, &g2_partial_ctb_y, partial_ctb_y);
 158
 159         hantro_reg_write(vpu, &g2_pic_width_in_cbs, pic_width_in_min_cbs);
 160         hantro_reg_write(vpu, &g2_pic_height_in_cbs, pic_height_in_min_cbs);
 161
 162         hantro_reg_write(vpu, &g2_pic_width_4x4,
 163                          (pic_width_in_min_cbs * min_cb_size) / 4);
 164         hantro_reg_write(vpu, &g2_pic_height_4x4,
 165                          (pic_height_in_min_cbs * min_cb_size) / 4);
 166
 167         hantro_reg_write(vpu, &hevc_max_inter_hierdepth,
 168                          sps->max_transform_hierarchy_depth_inter);
 169         hantro_reg_write(vpu, &hevc_max_intra_hierdepth,
 170                          sps->max_transform_hierarchy_depth_intra);
 171         hantro_reg_write(vpu, &hevc_min_trb_size,
 172                          sps->log2_min_luma_transform_block_size_minus2 + 2);
 173         hantro_reg_write(vpu, &hevc_max_trb_size,
 174                          sps->log2_min_luma_transform_block_size_minus2 + 2 +
 175                          sps->log2_diff_max_min_luma_transform_block_size);
 176
 177         hantro_reg_write(vpu, &g2_tempor_mvp_e,
 178                          !!(sps->flags & V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED) &&
 179                          !(decode_params->flags & V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC));
 180         hantro_reg_write(vpu, &g2_strong_smooth_e,
 181                          !!(sps->flags & V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED));
 182         hantro_reg_write(vpu, &g2_asym_pred_e,
 183                          !!(sps->flags & V4L2_HEVC_SPS_FLAG_AMP_ENABLED));
 184         hantro_reg_write(vpu, &g2_sao_e,
 185                          !!(sps->flags & V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET));
 186         hantro_reg_write(vpu, &g2_sign_data_hide,
 187                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED));
 188
 189         if (pps->flags & V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED) {
 190                 hantro_reg_write(vpu, &g2_cu_qpd_e, 1);
 191                 hantro_reg_write(vpu, &g2_max_cu_qpd_depth, pps->diff_cu_qp_delta_depth);
 192         } else {
 193                 hantro_reg_write(vpu, &g2_cu_qpd_e, 0);
 194                 hantro_reg_write(vpu, &g2_max_cu_qpd_depth, 0);
 195         }
 196
 197         hantro_reg_write(vpu, &g2_cb_qp_offset, pps->pps_cb_qp_offset);
 198         hantro_reg_write(vpu, &g2_cr_qp_offset, pps->pps_cr_qp_offset);
 199
 200         hantro_reg_write(vpu, &g2_filt_offset_beta, pps->pps_beta_offset_div2);
 201         hantro_reg_write(vpu, &g2_filt_offset_tc, pps->pps_tc_offset_div2);
 202         hantro_reg_write(vpu, &g2_slice_hdr_ext_e,
 203                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT));
 204         hantro_reg_write(vpu, &g2_slice_hdr_ext_bits, pps->num_extra_slice_header_bits);
 205         hantro_reg_write(vpu, &g2_slice_chqp_present,
 206                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT));
 207         hantro_reg_write(vpu, &g2_weight_bipr_idc,
 208                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED));
 209         hantro_reg_write(vpu, &g2_transq_bypass,
 210                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED));
 211         hantro_reg_write(vpu, &g2_list_mod_e,
 212                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT));
 213         hantro_reg_write(vpu, &g2_entropy_sync_e,
 214                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED));
 215         hantro_reg_write(vpu, &g2_cabac_init_present,
 216                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT));
 217         hantro_reg_write(vpu, &g2_idr_pic_e,
 218                          !!(decode_params->flags & V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC));
 219         hantro_reg_write(vpu, &hevc_parallel_merge,
 220                          pps->log2_parallel_merge_level_minus2 + 2);
 221         hantro_reg_write(vpu, &g2_pcm_filt_d,
 222                          !!(sps->flags & V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED));
 223         hantro_reg_write(vpu, &g2_pcm_e,
 224                          !!(sps->flags & V4L2_HEVC_SPS_FLAG_PCM_ENABLED));
 225         if (sps->flags & V4L2_HEVC_SPS_FLAG_PCM_ENABLED) {
 226                 hantro_reg_write(vpu, &g2_max_pcm_size,
 227                                  sps->log2_diff_max_min_pcm_luma_coding_block_size +
 228                                  sps->log2_min_pcm_luma_coding_block_size_minus3 + 3);
 229                 hantro_reg_write(vpu, &g2_min_pcm_size,
 230                                  sps->log2_min_pcm_luma_coding_block_size_minus3 + 3);
 231                 hantro_reg_write(vpu, &g2_bit_depth_pcm_y,
 232                                  sps->pcm_sample_bit_depth_luma_minus1 + 1);
 233                 hantro_reg_write(vpu, &g2_bit_depth_pcm_c,
 234                                  sps->pcm_sample_bit_depth_chroma_minus1 + 1);
 235         } else {
 236                 hantro_reg_write(vpu, &g2_max_pcm_size, 0);
 237                 hantro_reg_write(vpu, &g2_min_pcm_size, 0);
 238                 hantro_reg_write(vpu, &g2_bit_depth_pcm_y, 0);
 239                 hantro_reg_write(vpu, &g2_bit_depth_pcm_c, 0);
 240         }
 241
 242         hantro_reg_write(vpu, &g2_start_code_e, 1);
 243         hantro_reg_write(vpu, &g2_init_qp, pps->init_qp_minus26 + 26);
 244         hantro_reg_write(vpu, &g2_weight_pred_e,
 245                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED));
 246         hantro_reg_write(vpu, &g2_cabac_init_present,
 247                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT));
 248         hantro_reg_write(vpu, &g2_const_intra_e,
 249                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED));
 250         hantro_reg_write(vpu, &g2_transform_skip,
 251                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED));
 252         hantro_reg_write(vpu, &g2_out_filtering_dis,
 253                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER));
 254         hantro_reg_write(vpu, &g2_filt_ctrl_pres,
 255                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT));
 256         hantro_reg_write(vpu, &g2_dependent_slice,
 257                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED));
 258         hantro_reg_write(vpu, &g2_filter_override,
 259                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED));
 260         hantro_reg_write(vpu, &g2_refidx0_active,
 261                          pps->num_ref_idx_l0_default_active_minus1 + 1);
 262         hantro_reg_write(vpu, &g2_refidx1_active,
 263                          pps->num_ref_idx_l1_default_active_minus1 + 1);
 264         hantro_reg_write(vpu, &g2_apf_threshold, 8);
 265 }
 266
 267 static void set_ref_pic_list(struct hantro_ctx *ctx)
 268 {
 269         const struct hantro_hevc_dec_ctrls *ctrls = &ctx->hevc_dec.ctrls;
 270         struct hantro_dev *vpu = ctx->dev;
 271         const struct v4l2_ctrl_hevc_decode_params *decode_params = ctrls->decode_params;
 272         u32 list0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX] = {};
 273         u32 list1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX] = {};
 274         static const struct hantro_reg ref_pic_regs0[] = {
 275                 hevc_rlist_f0,
 276                 hevc_rlist_f1,
 277                 hevc_rlist_f2,
 278                 hevc_rlist_f3,
 279                 hevc_rlist_f4,
 280                 hevc_rlist_f5,
 281                 hevc_rlist_f6,
 282                 hevc_rlist_f7,
 283                 hevc_rlist_f8,
 284                 hevc_rlist_f9,
 285                 hevc_rlist_f10,
 286                 hevc_rlist_f11,
 287                 hevc_rlist_f12,
 288                 hevc_rlist_f13,
 289                 hevc_rlist_f14,
 290                 hevc_rlist_f15,
 291         };
 292         static const struct hantro_reg ref_pic_regs1[] = {
 293                 hevc_rlist_b0,
 294                 hevc_rlist_b1,
 295                 hevc_rlist_b2,
 296                 hevc_rlist_b3,
 297                 hevc_rlist_b4,
 298                 hevc_rlist_b5,
 299                 hevc_rlist_b6,
 300                 hevc_rlist_b7,
 301                 hevc_rlist_b8,
 302                 hevc_rlist_b9,
 303                 hevc_rlist_b10,
 304                 hevc_rlist_b11,
 305                 hevc_rlist_b12,
 306                 hevc_rlist_b13,
 307                 hevc_rlist_b14,
 308                 hevc_rlist_b15,
 309         };
 310         unsigned int i, j;
 311
 312         /* List 0 contains: short term before, short term after and long term */
 313         j = 0;
 314         for (i = 0; i < decode_params->num_poc_st_curr_before && j < ARRAY_SIZE(list0); i++)
 315                 list0[j++] = decode_params->poc_st_curr_before[i];
 316         for (i = 0; i < decode_params->num_poc_st_curr_after && j < ARRAY_SIZE(list0); i++)
 317                 list0[j++] = decode_params->poc_st_curr_after[i];
 318         for (i = 0; i < decode_params->num_poc_lt_curr && j < ARRAY_SIZE(list0); i++)
 319                 list0[j++] = decode_params->poc_lt_curr[i];
 320
 321         /* Fill the list, copying over and over */
 322         i = 0;
 323         while (j < ARRAY_SIZE(list0))
 324                 list0[j++] = list0[i++];
 325
 326         j = 0;
 327         for (i = 0; i < decode_params->num_poc_st_curr_after && j < ARRAY_SIZE(list1); i++)
 328                 list1[j++] = decode_params->poc_st_curr_after[i];
 329         for (i = 0; i < decode_params->num_poc_st_curr_before && j < ARRAY_SIZE(list1); i++)
 330                 list1[j++] = decode_params->poc_st_curr_before[i];
 331         for (i = 0; i < decode_params->num_poc_lt_curr && j < ARRAY_SIZE(list1); i++)
 332                 list1[j++] = decode_params->poc_lt_curr[i];
 333
 334         i = 0;
 335         while (j < ARRAY_SIZE(list1))
 336                 list1[j++] = list1[i++];
 337
 338         for (i = 0; i < V4L2_HEVC_DPB_ENTRIES_NUM_MAX; i++) {
 339                 hantro_reg_write(vpu, &ref_pic_regs0[i], list0[i]);
 340                 hantro_reg_write(vpu, &ref_pic_regs1[i], list1[i]);
 341         }
 342 }
 343
 344 static int set_ref(struct hantro_ctx *ctx)
 345 {
 346         const struct hantro_hevc_dec_ctrls *ctrls = &ctx->hevc_dec.ctrls;
 347         const struct v4l2_ctrl_hevc_pps *pps = ctrls->pps;
 348         const struct v4l2_ctrl_hevc_decode_params *decode_params = ctrls->decode_params;
 349         const struct v4l2_hevc_dpb_entry *dpb = decode_params->dpb;
 350         dma_addr_t luma_addr, chroma_addr, mv_addr = 0;
 351         struct hantro_dev *vpu = ctx->dev;
 352         struct vb2_v4l2_buffer *vb2_dst;
 353         struct hantro_decoded_buffer *dst;
 354         size_t cr_offset = hantro_hevc_chroma_offset(ctx);
 355         size_t mv_offset = hantro_hevc_motion_vectors_offset(ctx);
 356         u32 max_ref_frames;
 357         u16 dpb_longterm_e;
 358         static const struct hantro_reg cur_poc[] = {
 359                 hevc_cur_poc_00,
 360                 hevc_cur_poc_01,
 361                 hevc_cur_poc_02,
 362                 hevc_cur_poc_03,
 363                 hevc_cur_poc_04,
 364                 hevc_cur_poc_05,
 365                 hevc_cur_poc_06,
 366                 hevc_cur_poc_07,
 367                 hevc_cur_poc_08,
 368                 hevc_cur_poc_09,
 369                 hevc_cur_poc_10,
 370                 hevc_cur_poc_11,
 371                 hevc_cur_poc_12,
 372                 hevc_cur_poc_13,
 373                 hevc_cur_poc_14,
 374                 hevc_cur_poc_15,
 375         };
 376         unsigned int i;
 377
 378         max_ref_frames = decode_params->num_poc_lt_curr +
 379                 decode_params->num_poc_st_curr_before +
 380                 decode_params->num_poc_st_curr_after;
 381         /*
 382          * Set max_ref_frames to non-zero to avoid HW hang when decoding
 383          * badly marked I-frames.
 384          */
 385         max_ref_frames = max_ref_frames ? max_ref_frames : 1;
 386         hantro_reg_write(vpu, &g2_num_ref_frames, max_ref_frames);
 387         hantro_reg_write(vpu, &g2_filter_over_slices,
 388                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED));
 389         hantro_reg_write(vpu, &g2_filter_over_tiles,
 390                          !!(pps->flags & V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED));
 391
 392         /*
 393          * Write POC count diff from current pic. For frame decoding only compute
 394          * pic_order_cnt[0] and ignore pic_order_cnt[1] used in field-coding.
 395          */
 396         for (i = 0; i < decode_params->num_active_dpb_entries && i < ARRAY_SIZE(cur_poc); i++) {
 397                 char poc_diff = decode_params->pic_order_cnt_val - dpb[i].pic_order_cnt[0];
 398
 399                 hantro_reg_write(vpu, &cur_poc[i], poc_diff);
 400         }
 401
 402         if (i < ARRAY_SIZE(cur_poc)) {
 403                 /*
 404                  * After the references, fill one entry pointing to itself,
 405                  * i.e. difference is zero.
 406                  */
 407                 hantro_reg_write(vpu, &cur_poc[i], 0);
 408                 i++;
 409         }
 410
 411         /* Fill the rest with the current picture */
 412         for (; i < ARRAY_SIZE(cur_poc); i++)
 413                 hantro_reg_write(vpu, &cur_poc[i], decode_params->pic_order_cnt_val);
 414
 415         set_ref_pic_list(ctx);
 416
 417         /* We will only keep the reference pictures that are still used */
 418         hantro_hevc_ref_init(ctx);
 419
 420         /* Set up addresses of DPB buffers */
 421         dpb_longterm_e = 0;
 422         for (i = 0; i < decode_params->num_active_dpb_entries &&
 423              i < (V4L2_HEVC_DPB_ENTRIES_NUM_MAX - 1); i++) {
 424                 luma_addr = hantro_hevc_get_ref_buf(ctx, dpb[i].pic_order_cnt[0]);
 425                 if (!luma_addr)
 426                         return -ENOMEM;
 427
 428                 chroma_addr = luma_addr + cr_offset;
 429                 mv_addr = luma_addr + mv_offset;
 430
 431                 if (dpb[i].flags & V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE)
 432                         dpb_longterm_e |= BIT(V4L2_HEVC_DPB_ENTRIES_NUM_MAX - 1 - i);
 433
 434                 hantro_write_addr(vpu, G2_REF_LUMA_ADDR(i), luma_addr);
 435                 hantro_write_addr(vpu, G2_REF_CHROMA_ADDR(i), chroma_addr);
 436                 hantro_write_addr(vpu, G2_REF_MV_ADDR(i), mv_addr);
 437         }
 438
 439         vb2_dst = hantro_get_dst_buf(ctx);
 440         dst = vb2_to_hantro_decoded_buf(&vb2_dst->vb2_buf);
 441         luma_addr = hantro_get_dec_buf_addr(ctx, &dst->base.vb.vb2_buf);
 442         if (!luma_addr)
 443                 return -ENOMEM;
 444
 445         if (hantro_hevc_add_ref_buf(ctx, decode_params->pic_order_cnt_val, luma_addr))
 446                 return -EINVAL;
 447
 448         chroma_addr = luma_addr + cr_offset;
 449         mv_addr = luma_addr + mv_offset;
 450
 451         hantro_write_addr(vpu, G2_REF_LUMA_ADDR(i), luma_addr);
 452         hantro_write_addr(vpu, G2_REF_CHROMA_ADDR(i), chroma_addr);
 453         hantro_write_addr(vpu, G2_REF_MV_ADDR(i++), mv_addr);
 454
 455         hantro_write_addr(vpu, G2_OUT_LUMA_ADDR, luma_addr);
 456         hantro_write_addr(vpu, G2_OUT_CHROMA_ADDR, chroma_addr);
 457         hantro_write_addr(vpu, G2_OUT_MV_ADDR, mv_addr);
 458
 459         for (; i < V4L2_HEVC_DPB_ENTRIES_NUM_MAX; i++) {
 460                 hantro_write_addr(vpu, G2_REF_LUMA_ADDR(i), 0);
 461                 hantro_write_addr(vpu, G2_REF_CHROMA_ADDR(i), 0);
 462                 hantro_write_addr(vpu, G2_REF_MV_ADDR(i), 0);
 463         }
 464
 465         hantro_reg_write(vpu, &g2_refer_lterm_e, dpb_longterm_e);
 466
 467         return 0;
 468 }
 469
 470 static void set_buffers(struct hantro_ctx *ctx)
 471 {
 472         struct vb2_v4l2_buffer *src_buf;
 473         struct hantro_dev *vpu = ctx->dev;
 474         dma_addr_t src_dma;
 475         u32 src_len, src_buf_len;
 476
 477         src_buf = hantro_get_src_buf(ctx);
 478
 479         /* Source (stream) buffer. */
 480         src_dma = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
 481         src_len = vb2_get_plane_payload(&src_buf->vb2_buf, 0);
 482         src_buf_len = vb2_plane_size(&src_buf->vb2_buf, 0);
 483
 484         hantro_write_addr(vpu, G2_STREAM_ADDR, src_dma);
 485         hantro_reg_write(vpu, &g2_stream_len, src_len);
 486         hantro_reg_write(vpu, &g2_strm_buffer_len, src_buf_len);
 487         hantro_reg_write(vpu, &g2_strm_start_offset, 0);
 488         hantro_reg_write(vpu, &g2_write_mvs_e, 1);
 489
 490         hantro_write_addr(vpu, G2_TILE_SIZES_ADDR, ctx->hevc_dec.tile_sizes.dma);
 491         hantro_write_addr(vpu, G2_TILE_FILTER_ADDR, ctx->hevc_dec.tile_filter.dma);
 492         hantro_write_addr(vpu, G2_TILE_SAO_ADDR, ctx->hevc_dec.tile_sao.dma);
 493         hantro_write_addr(vpu, G2_TILE_BSD_ADDR, ctx->hevc_dec.tile_bsd.dma);
 494 }
 495
 496 static void prepare_scaling_list_buffer(struct hantro_ctx *ctx)
 497 {
 498         struct hantro_dev *vpu = ctx->dev;
 499         const struct hantro_hevc_dec_ctrls *ctrls = &ctx->hevc_dec.ctrls;
 500         const struct v4l2_ctrl_hevc_scaling_matrix *sc = ctrls->scaling;
 501         const struct v4l2_ctrl_hevc_sps *sps = ctrls->sps;
 502         u8 *p = ((u8 *)ctx->hevc_dec.scaling_lists.cpu);
 503         unsigned int scaling_list_enabled;
 504         unsigned int i, j, k;
 505
 506         scaling_list_enabled = !!(sps->flags & V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED);
 507         hantro_reg_write(vpu, &g2_scaling_list_e, scaling_list_enabled);
 508
 509         if (!scaling_list_enabled)
 510                 return;
 511
 512         for (i = 0; i < ARRAY_SIZE(sc->scaling_list_dc_coef_16x16); i++)
 513                 *p++ = sc->scaling_list_dc_coef_16x16[i];
 514
 515         for (i = 0; i < ARRAY_SIZE(sc->scaling_list_dc_coef_32x32); i++)
 516                 *p++ = sc->scaling_list_dc_coef_32x32[i];
 517
 518         /* 128-bit boundary */
 519         p += 8;
 520
 521         /* write scaling lists column by column */
 522
 523         for (i = 0; i < 6; i++)
 524                 for (j = 0; j < 4; j++)
 525                         for (k = 0; k < 4; k++)
 526                                 *p++ = sc->scaling_list_4x4[i][4 * k + j];
 527
 528         for (i = 0; i < 6; i++)
 529                 for (j = 0; j < 8; j++)
 530                         for (k = 0; k < 8; k++)
 531                                 *p++ = sc->scaling_list_8x8[i][8 * k + j];
 532
 533         for (i = 0; i < 6; i++)
 534                 for (j = 0; j < 8; j++)
 535                         for (k = 0; k < 8; k++)
 536                                 *p++ = sc->scaling_list_16x16[i][8 * k + j];
 537
 538         for (i = 0; i < 2; i++)
 539                 for (j = 0; j < 8; j++)
 540                         for (k = 0; k < 8; k++)
 541                                 *p++ = sc->scaling_list_32x32[i][8 * k + j];
 542
 543         hantro_write_addr(vpu, G2_HEVC_SCALING_LIST_ADDR, ctx->hevc_dec.scaling_lists.dma);
 544 }
 545
 546 int hantro_g2_hevc_dec_run(struct hantro_ctx *ctx)
 547 {
 548         struct hantro_dev *vpu = ctx->dev;
 549         int ret;
 550
 551         hantro_g2_check_idle(vpu);
 552
 553         /* Prepare HEVC decoder context. */
 554         ret = hantro_hevc_dec_prepare_run(ctx);
 555         if (ret)
 556                 return ret;
 557
 558         /* Configure hardware registers. */
 559         set_params(ctx);
 560
 561         /* set reference pictures */
 562         ret = set_ref(ctx);
 563         if (ret)
 564                 return ret;
 565
 566         set_buffers(ctx);
 567         prepare_tile_info_buffer(ctx);
 568
 569         prepare_scaling_list_buffer(ctx);
 570
 571         hantro_end_prepare_run(ctx);
 572
 573         hantro_reg_write(vpu, &g2_mode, HEVC_DEC_MODE);
 574         hantro_reg_write(vpu, &g2_clk_gate_e, 1);
 575
 576         /* Don't disable output */
 577         hantro_reg_write(vpu, &g2_out_dis, 0);
 578
 579         /* Don't compress buffers */
 580         hantro_reg_write(vpu, &g2_ref_compress_bypass, 1);
 581
 582         /* Bus width and max burst */
 583         hantro_reg_write(vpu, &g2_buswidth, BUS_WIDTH_128);
 584         hantro_reg_write(vpu, &g2_max_burst, 16);
 585
 586         /* Swap */
 587         hantro_reg_write(vpu, &g2_strm_swap, 0xf);
 588         hantro_reg_write(vpu, &g2_dirmv_swap, 0xf);
 589         hantro_reg_write(vpu, &g2_compress_swap, 0xf);
 590
 591         /* Start decoding! */
 592         vdpu_write(vpu, G2_REG_INTERRUPT_DEC_E, G2_REG_INTERRUPT);
 593
 594         return 0;
 595 }