35 /* default DSC policy target bitrate limit is 16bpp */
36 static uint32_t dsc_policy_max_target_bpp_limit = 16;
64 		struct fixed31_32 bpp;  in apply_128b_132b_stream_overhead()  local
67 		bpp = dc_fixpt_from_int(kbps);  in apply_128b_132b_stream_overhead()
68 		bpp = dc_fixpt_div_int(bpp, timing->pix_clk_100hz / 10);  in apply_128b_132b_stream_overhead()
70 		/* Symbols_per_HActive = HActive * bpp / (4 lanes * 32-bit symbol size)  in apply_128b_132b_stream_overhead()
74 		overhead_factor = dc_fixpt_mul(overhead_factor, bpp);  in apply_128b_132b_stream_overhead()
117 		bits_per_channel = 16;  in dc_bandwidth_in_kbps_from_timing()
196 		*buff_block_size = 16 * 1024;  in dsc_buff_block_size_from_dpcd()
289 	// Mask bpp increment dpcd field to avoid reading other fields  in dsc_bpp_increment_div_from_dpcd()
294 		*bpp_increment_div = 16;  in dsc_bpp_increment_div_from_dpcd()
388 		/* dsc_bpp_increment_div should onl be 1, 2, 4, 8 or 16, but rather than rejecting invalid values,  in dc_dsc_parse_dsc_dpcd()
400 		if (dc->debug.dsc_bpp_increment_div >= 16)  in dc_dsc_parse_dsc_dpcd()
401 			dsc_sink_caps->bpp_increment_div = 16;  in dc_dsc_parse_dsc_dpcd()
604 	bpp_x16 = dc_fixpt_mul_int(bpp_x16, 16);  in compute_bpp_x16_from_target_bandwidth()
610  * The range output includes decided min/max target bpp, the respective bandwidth requirements
636 		/* apply max bpp limitation from edp sink */  in decide_dsc_bandwidth_range()
651 		/* max dsc target bpp */  in decide_dsc_bandwidth_range()
655 		/* min dsc target bpp */  in decide_dsc_bandwidth_range()
663 /* Decides if DSC should be used and calculates target bpp if it should, applying DSC policy.
666  *     - 'true' if target bpp is decided
667  *     - 'false' if target bpp cannot be decided (e.g. cannot fit even with min DSC bpp),
683 	if (decide_dsc_bandwidth_range(policy->min_target_bpp * 16, policy->max_target_bpp * 16,  in decide_dsc_target_bpp_x16()
687 				/* enable max bpp even dsc is not needed */  in decide_dsc_target_bpp_x16()
690 			/* use max target bpp allowed */  in decide_dsc_target_bpp_x16()
693 			/* use target bpp that can take entire target bandwidth */  in decide_dsc_target_bpp_x16()
726 		available_slices[idx++] = 16;  in get_available_dsc_slices()
849  *                          If 0, do not calculate target bpp.
1136 	struct fixed31_32 bpp;  in dc_dsc_stream_bandwidth_in_kbps()  local
1141 	bpp = dc_fixpt_from_fraction(bpp_x16, 16);  in dc_dsc_stream_bandwidth_in_kbps()
1143 	actual_bandwidth_in_kbps = dc_fixpt_mul(actual_bandwidth_in_kbps, bpp);  in dc_dsc_stream_bandwidth_in_kbps()
1159 	/* use target bpp that can take entire target bandwidth */  in dc_dsc_stream_bandwidth_overhead_in_kbps()
1197 	/* DSC Policy: follow DP specs with an internal upper limit to 16 bpp  in dc_dsc_get_policy_for_timing()
1232 	/* internal upper limit, default 16 bpp */  in dc_dsc_get_policy_for_timing()
1237 …x_target_bpp_limit_override_x16 && policy->max_target_bpp > max_target_bpp_limit_override_x16 / 16)  in dc_dsc_get_policy_for_timing()
1238 		policy->max_target_bpp = max_target_bpp_limit_override_x16 / 16;  in dc_dsc_get_policy_for_timing()