dc/dcn20/dcn20_dsc.c

37 static bool dsc2_validate_stream(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg);
38 static void dsc2_set_config(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg,
166 static bool dsc2_validate_stream(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg)
171 	if (dsc_cfg->pic_width > dsc20->max_image_width)
174 	return dsc_prepare_config(dsc_cfg, &dsc20->reg_vals, &dsc_optc_cfg);
189 static void dsc2_set_config(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg,
196 	dsc_config_log(dsc, dsc_cfg);
197 	is_config_ok = dsc_prepare_config(dsc_cfg, &dsc20->reg_vals, dsc_optc_cfg);
205 bool dsc2_get_packed_pps(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, uint8_t *dsc_packed_pps)
215 	dsc_config_log(dsc, dsc_cfg);
217 	is_config_ok = dsc_prepare_config(dsc_cfg, &dsc_reg_vals, &dsc_optc_cfg);
366 bool dsc_prepare_config(const struct dsc_config *dsc_cfg, struct dsc_reg_values *dsc_reg_vals,
373 	ASSERT(dsc_cfg->dc_dsc_cfg.num_slices_h);
374 	ASSERT(dsc_cfg->dc_dsc_cfg.num_slices_v);
375 	ASSERT(dsc_cfg->dc_dsc_cfg.version_minor == 1 || dsc_cfg->dc_dsc_cfg.version_minor == 2);
376 	ASSERT(dsc_cfg->pic_width);
377 	ASSERT(dsc_cfg->pic_height);
378 	ASSERT((dsc_cfg->dc_dsc_cfg.version_minor == 1 &&
379 		  (8 <= dsc_cfg->dc_dsc_cfg.linebuf_depth && dsc_cfg->dc_dsc_cfg.linebuf_depth <= 13)) ||
380 		(dsc_cfg->dc_dsc_cfg.version_minor == 2 &&
381 		  ((8 <= dsc_cfg->dc_dsc_cfg.linebuf_depth && dsc_cfg->dc_dsc_cfg.linebuf_depth <= 15) ||
382 		    dsc_cfg->dc_dsc_cfg.linebuf_depth == 0)));
383 	ASSERT(96 <= dsc_cfg->dc_dsc_cfg.bits_per_pixel && dsc_cfg->dc_dsc_cfg.bits_per_pixel <= 0x3ff); // 6.0 <= bits_per_pixel <= 63.9375
385 	if (!dsc_cfg->dc_dsc_cfg.num_slices_v || !dsc_cfg->dc_dsc_cfg.num_slices_h ||
386 		!(dsc_cfg->dc_dsc_cfg.version_minor == 1 || dsc_cfg->dc_dsc_cfg.version_minor == 2) ||
387 		!dsc_cfg->pic_width || !dsc_cfg->pic_height ||
388 		!((dsc_cfg->dc_dsc_cfg.version_minor == 1 && // v1.1 line buffer depth range:
389 			8 <= dsc_cfg->dc_dsc_cfg.linebuf_depth && dsc_cfg->dc_dsc_cfg.linebuf_depth <= 13) ||
390 		(dsc_cfg->dc_dsc_cfg.version_minor == 2 && // v1.2 line buffer depth range:
391 			((8 <= dsc_cfg->dc_dsc_cfg.linebuf_depth && dsc_cfg->dc_dsc_cfg.linebuf_depth <= 15) ||
392 			dsc_cfg->dc_dsc_cfg.linebuf_depth == 0))) ||
393 		!(96 <= dsc_cfg->dc_dsc_cfg.bits_per_pixel && dsc_cfg->dc_dsc_cfg.bits_per_pixel <= 0x3ff)) {
401 	dsc_reg_vals->pixel_format = dsc_dc_pixel_encoding_to_dsc_pixel_format(dsc_cfg->pixel_encoding, dsc_cfg->dc_dsc_cfg.ycbcr422_simple);
402 	dsc_reg_vals->num_slices_h = dsc_cfg->dc_dsc_cfg.num_slices_h;
403 	dsc_reg_vals->num_slices_v = dsc_cfg->dc_dsc_cfg.num_slices_v;
404 	dsc_reg_vals->pps.dsc_version_minor = dsc_cfg->dc_dsc_cfg.version_minor;
405 	dsc_reg_vals->pps.pic_width = dsc_cfg->pic_width;
406 	dsc_reg_vals->pps.pic_height = dsc_cfg->pic_height;
407 	dsc_reg_vals->pps.bits_per_component = dsc_dc_color_depth_to_dsc_bits_per_comp(dsc_cfg->color_depth);
408 	dsc_reg_vals->pps.block_pred_enable = dsc_cfg->dc_dsc_cfg.block_pred_enable;
409 	dsc_reg_vals->pps.line_buf_depth = dsc_cfg->dc_dsc_cfg.linebuf_depth;
411 	dsc_reg_vals->ich_reset_at_eol = (dsc_cfg->is_odm || dsc_reg_vals->num_slices_h > 1) ? 0xF : 0;
415 	dsc_reg_vals->pps.slice_width = dsc_cfg->pic_width / dsc_cfg->dc_dsc_cfg.num_slices_h;
416 	dsc_reg_vals->pps.slice_height = dsc_cfg->pic_height / dsc_cfg->dc_dsc_cfg.num_slices_v;
418 	ASSERT(dsc_reg_vals->pps.slice_height * dsc_cfg->dc_dsc_cfg.num_slices_v == dsc_cfg->pic_height);
419 	if (!(dsc_reg_vals->pps.slice_height * dsc_cfg->dc_dsc_cfg.num_slices_v == dsc_cfg->pic_height)) {
420 		dm_output_to_console("%s: pix height %d not divisible by num_slices_v %d\n\n", __func__, dsc_cfg->pic_height, dsc_cfg->dc_dsc_cfg.num_slices_v);
424 	dsc_reg_vals->bpp_x32 = dsc_cfg->dc_dsc_cfg.bits_per_pixel << 1;
437 	if (dsc_cfg->dc_dsc_cfg.rc_params_ovrd)
438 		dsc_override_rc_params(&rc, dsc_cfg->dc_dsc_cfg.rc_params_ovrd);