1 /* 2 * Copyright 2022 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 #include "link_hwss_hpo_dp.h" 26 #include "dm_helpers.h" 27 #include "core_types.h" 28 #include "dccg.h" 29 #include "clk_mgr.h" 30 31 #define DC_LOGGER link->ctx->logger 32 33 void set_hpo_dp_throttled_vcp_size(struct pipe_ctx *pipe_ctx, 34 struct fixed31_32 throttled_vcp_size) 35 { 36 struct hpo_dp_stream_encoder *hpo_dp_stream_encoder = 37 pipe_ctx->stream_res.hpo_dp_stream_enc; 38 struct hpo_dp_link_encoder *hpo_dp_link_encoder = 39 pipe_ctx->link_res.hpo_dp_link_enc; 40 41 hpo_dp_link_encoder->funcs->set_throttled_vcp_size(hpo_dp_link_encoder, 42 hpo_dp_stream_encoder->inst, 43 throttled_vcp_size); 44 } 45 46 void set_hpo_dp_hblank_min_symbol_width(struct pipe_ctx *pipe_ctx, 47 const struct dc_link_settings *link_settings, 48 struct fixed31_32 throttled_vcp_size) 49 { 50 struct hpo_dp_stream_encoder *hpo_dp_stream_encoder = 51 pipe_ctx->stream_res.hpo_dp_stream_enc; 52 struct dc_crtc_timing *timing = &pipe_ctx->stream->timing; 53 struct fixed31_32 h_blank_in_ms, time_slot_in_ms, mtp_cnt_per_h_blank; 54 uint32_t link_bw_in_kbps = 55 hpo_dp_stream_encoder->ctx->dc->link_srv->dp_link_bandwidth_kbps( 56 pipe_ctx->stream->link, link_settings); 57 uint16_t hblank_min_symbol_width = 0; 58 59 if (link_bw_in_kbps > 0) { 60 h_blank_in_ms = dc_fixpt_div(dc_fixpt_from_int( 61 timing->h_total - timing->h_addressable), 62 dc_fixpt_from_fraction(timing->pix_clk_100hz, 10)); 63 time_slot_in_ms = dc_fixpt_from_fraction(32 * 4, link_bw_in_kbps); 64 mtp_cnt_per_h_blank = dc_fixpt_div(h_blank_in_ms, 65 dc_fixpt_mul_int(time_slot_in_ms, 64)); 66 hblank_min_symbol_width = dc_fixpt_floor( 67 dc_fixpt_mul(mtp_cnt_per_h_blank, throttled_vcp_size)); 68 } 69 70 hpo_dp_stream_encoder->funcs->set_hblank_min_symbol_width(hpo_dp_stream_encoder, 71 hblank_min_symbol_width); 72 } 73 74 void setup_hpo_dp_stream_encoder(struct pipe_ctx *pipe_ctx) 75 { 76 struct hpo_dp_stream_encoder *stream_enc = pipe_ctx->stream_res.hpo_dp_stream_enc; 77 struct hpo_dp_link_encoder *link_enc = pipe_ctx->link_res.hpo_dp_link_enc; 78 79 stream_enc->funcs->enable_stream(stream_enc); 80 stream_enc->funcs->map_stream_to_link(stream_enc, stream_enc->inst, link_enc->inst); 81 } 82 83 void reset_hpo_dp_stream_encoder(struct pipe_ctx *pipe_ctx) 84 { 85 struct hpo_dp_stream_encoder *stream_enc = pipe_ctx->stream_res.hpo_dp_stream_enc; 86 87 stream_enc->funcs->disable(stream_enc); 88 } 89 90 void setup_hpo_dp_stream_attribute(struct pipe_ctx *pipe_ctx) 91 { 92 struct hpo_dp_stream_encoder *stream_enc = pipe_ctx->stream_res.hpo_dp_stream_enc; 93 struct dc_stream_state *stream = pipe_ctx->stream; 94 struct dc_link *link = stream->link; 95 96 stream_enc->funcs->set_stream_attribute( 97 stream_enc, 98 &stream->timing, 99 stream->output_color_space, 100 stream->use_vsc_sdp_for_colorimetry, 101 stream->timing.flags.DSC, 102 false); 103 link->dc->link_srv->dp_trace_source_sequence(link, 104 DPCD_SOURCE_SEQ_AFTER_DP_STREAM_ATTR); 105 } 106 107 void enable_hpo_dp_link_output(struct dc_link *link, 108 const struct link_resource *link_res, 109 enum signal_type signal, 110 enum clock_source_id clock_source, 111 const struct dc_link_settings *link_settings) 112 { 113 if (!link_res->hpo_dp_link_enc) { 114 DC_LOG_ERROR("%s: invalid hpo_dp_link_enc\n", __func__); 115 return; 116 } 117 118 if (link->dc->res_pool->dccg->funcs->set_symclk32_le_root_clock_gating) 119 link->dc->res_pool->dccg->funcs->set_symclk32_le_root_clock_gating( 120 link->dc->res_pool->dccg, 121 link_res->hpo_dp_link_enc->inst, 122 true); 123 link_res->hpo_dp_link_enc->funcs->enable_link_phy( 124 link_res->hpo_dp_link_enc, 125 link_settings, 126 link->link_enc->transmitter, 127 link->link_enc->hpd_source); 128 } 129 130 void disable_hpo_dp_link_output(struct dc_link *link, 131 const struct link_resource *link_res, 132 enum signal_type signal) 133 { 134 if (!link_res->hpo_dp_link_enc) { 135 DC_LOG_ERROR("%s: invalid hpo_dp_link_enc\n", __func__); 136 return; 137 } 138 139 link_res->hpo_dp_link_enc->funcs->link_disable(link_res->hpo_dp_link_enc); 140 link_res->hpo_dp_link_enc->funcs->disable_link_phy( 141 link_res->hpo_dp_link_enc, signal); 142 if (link->dc->res_pool->dccg->funcs->set_symclk32_le_root_clock_gating) 143 link->dc->res_pool->dccg->funcs->set_symclk32_le_root_clock_gating( 144 link->dc->res_pool->dccg, 145 link_res->hpo_dp_link_enc->inst, 146 false); 147 } 148 149 static void set_hpo_dp_link_test_pattern(struct dc_link *link, 150 const struct link_resource *link_res, 151 struct encoder_set_dp_phy_pattern_param *tp_params) 152 { 153 link_res->hpo_dp_link_enc->funcs->set_link_test_pattern( 154 link_res->hpo_dp_link_enc, tp_params); 155 link->dc->link_srv->dp_trace_source_sequence(link, DPCD_SOURCE_SEQ_AFTER_SET_SOURCE_PATTERN); 156 } 157 158 static void set_hpo_dp_lane_settings(struct dc_link *link, 159 const struct link_resource *link_res, 160 const struct dc_link_settings *link_settings, 161 const struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX]) 162 { 163 link_res->hpo_dp_link_enc->funcs->set_ffe( 164 link_res->hpo_dp_link_enc, 165 link_settings, 166 lane_settings[0].FFE_PRESET.raw); 167 } 168 169 void update_hpo_dp_stream_allocation_table(struct dc_link *link, 170 const struct link_resource *link_res, 171 const struct link_mst_stream_allocation_table *table) 172 { 173 link_res->hpo_dp_link_enc->funcs->update_stream_allocation_table( 174 link_res->hpo_dp_link_enc, 175 table); 176 } 177 178 void setup_hpo_dp_audio_output(struct pipe_ctx *pipe_ctx, 179 struct audio_output *audio_output, uint32_t audio_inst) 180 { 181 pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->dp_audio_setup( 182 pipe_ctx->stream_res.hpo_dp_stream_enc, 183 audio_inst, 184 &pipe_ctx->stream->audio_info); 185 } 186 187 void enable_hpo_dp_audio_packet(struct pipe_ctx *pipe_ctx) 188 { 189 pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->dp_audio_enable( 190 pipe_ctx->stream_res.hpo_dp_stream_enc); 191 } 192 193 void disable_hpo_dp_audio_packet(struct pipe_ctx *pipe_ctx) 194 { 195 if (pipe_ctx->stream_res.audio) 196 pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->dp_audio_disable( 197 pipe_ctx->stream_res.hpo_dp_stream_enc); 198 } 199 200 static const struct link_hwss hpo_dp_link_hwss = { 201 .setup_stream_encoder = setup_hpo_dp_stream_encoder, 202 .reset_stream_encoder = reset_hpo_dp_stream_encoder, 203 .setup_stream_attribute = setup_hpo_dp_stream_attribute, 204 .disable_link_output = disable_hpo_dp_link_output, 205 .setup_audio_output = setup_hpo_dp_audio_output, 206 .enable_audio_packet = enable_hpo_dp_audio_packet, 207 .disable_audio_packet = disable_hpo_dp_audio_packet, 208 .ext = { 209 .set_throttled_vcp_size = set_hpo_dp_throttled_vcp_size, 210 .set_hblank_min_symbol_width = set_hpo_dp_hblank_min_symbol_width, 211 .enable_dp_link_output = enable_hpo_dp_link_output, 212 .set_dp_link_test_pattern = set_hpo_dp_link_test_pattern, 213 .set_dp_lane_settings = set_hpo_dp_lane_settings, 214 .update_stream_allocation_table = update_hpo_dp_stream_allocation_table, 215 }, 216 }; 217 218 bool can_use_hpo_dp_link_hwss(const struct dc_link *link, 219 const struct link_resource *link_res) 220 { 221 return link_res->hpo_dp_link_enc != NULL; 222 } 223 224 const struct link_hwss *get_hpo_dp_link_hwss(void) 225 { 226 return &hpo_dp_link_hwss; 227 } 228 229