1 /* 2 * Copyright 2023 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 26 /* FILE POLICY AND INTENDED USAGE: 27 * This file owns the programming sequence of stream's dpms state associated 28 * with the link and link's enable/disable sequences as result of the stream's 29 * dpms state change. 30 * 31 * TODO - The reason link owns stream's dpms programming sequence is 32 * because dpms programming sequence is highly dependent on underlying signal 33 * specific link protocols. This unfortunately causes link to own a portion of 34 * stream state programming sequence. This creates a gray area where the 35 * boundary between link and stream is not clearly defined. 36 */ 37 38 #include "link_dpms.h" 39 #include "link_hwss.h" 40 #include "link_validation.h" 41 #include "accessories/link_fpga.h" 42 #include "accessories/link_dp_trace.h" 43 #include "protocols/link_dpcd.h" 44 #include "protocols/link_ddc.h" 45 #include "protocols/link_hpd.h" 46 #include "protocols/link_dp_phy.h" 47 #include "protocols/link_dp_capability.h" 48 #include "protocols/link_dp_training.h" 49 #include "protocols/link_edp_panel_control.h" 50 #include "protocols/link_dp_dpia_bw.h" 51 52 #include "dm_helpers.h" 53 #include "link_enc_cfg.h" 54 #include "resource.h" 55 #include "dsc.h" 56 #include "dccg.h" 57 #include "clk_mgr.h" 58 #include "atomfirmware.h" 59 #define DC_LOGGER_INIT(logger) 60 61 #define LINK_INFO(...) \ 62 DC_LOG_HW_HOTPLUG( \ 63 __VA_ARGS__) 64 65 #define RETIMER_REDRIVER_INFO(...) \ 66 DC_LOG_RETIMER_REDRIVER( \ 67 __VA_ARGS__) 68 #include "dc/dcn30/dcn30_vpg.h" 69 70 #define MAX_MTP_SLOT_COUNT 64 71 #define LINK_TRAINING_ATTEMPTS 4 72 #define PEAK_FACTOR_X1000 1006 73 74 void link_blank_all_dp_displays(struct dc *dc) 75 { 76 unsigned int i; 77 uint8_t dpcd_power_state = '\0'; 78 enum dc_status status = DC_ERROR_UNEXPECTED; 79 80 for (i = 0; i < dc->link_count; i++) { 81 if ((dc->links[i]->connector_signal != SIGNAL_TYPE_DISPLAY_PORT) || 82 (dc->links[i]->priv == NULL) || (dc->links[i]->local_sink == NULL)) 83 continue; 84 85 /* DP 2.0 spec requires that we read LTTPR caps first */ 86 dp_retrieve_lttpr_cap(dc->links[i]); 87 /* if any of the displays are lit up turn them off */ 88 status = core_link_read_dpcd(dc->links[i], DP_SET_POWER, 89 &dpcd_power_state, sizeof(dpcd_power_state)); 90 91 if (status == DC_OK && dpcd_power_state == DP_POWER_STATE_D0) 92 link_blank_dp_stream(dc->links[i], true); 93 } 94 95 } 96 97 void link_blank_all_edp_displays(struct dc *dc) 98 { 99 unsigned int i; 100 uint8_t dpcd_power_state = '\0'; 101 enum dc_status status = DC_ERROR_UNEXPECTED; 102 103 for (i = 0; i < dc->link_count; i++) { 104 if ((dc->links[i]->connector_signal != SIGNAL_TYPE_EDP) || 105 (!dc->links[i]->edp_sink_present)) 106 continue; 107 108 /* if any of the displays are lit up turn them off */ 109 status = core_link_read_dpcd(dc->links[i], DP_SET_POWER, 110 &dpcd_power_state, sizeof(dpcd_power_state)); 111 112 if (status == DC_OK && dpcd_power_state == DP_POWER_STATE_D0) 113 link_blank_dp_stream(dc->links[i], true); 114 } 115 } 116 117 void link_blank_dp_stream(struct dc_link *link, bool hw_init) 118 { 119 unsigned int j; 120 struct dc *dc = link->ctx->dc; 121 enum signal_type signal = link->connector_signal; 122 123 if ((signal == SIGNAL_TYPE_EDP) || 124 (signal == SIGNAL_TYPE_DISPLAY_PORT)) { 125 if (link->ep_type == DISPLAY_ENDPOINT_PHY && 126 link->link_enc->funcs->get_dig_frontend && 127 link->link_enc->funcs->is_dig_enabled(link->link_enc)) { 128 unsigned int fe = link->link_enc->funcs->get_dig_frontend(link->link_enc); 129 130 if (fe != ENGINE_ID_UNKNOWN) 131 for (j = 0; j < dc->res_pool->stream_enc_count; j++) { 132 if (fe == dc->res_pool->stream_enc[j]->id) { 133 dc->res_pool->stream_enc[j]->funcs->dp_blank(link, 134 dc->res_pool->stream_enc[j]); 135 break; 136 } 137 } 138 } 139 140 if ((!link->wa_flags.dp_keep_receiver_powered) || hw_init) 141 dpcd_write_rx_power_ctrl(link, false); 142 } 143 } 144 145 void link_set_all_streams_dpms_off_for_link(struct dc_link *link) 146 { 147 struct pipe_ctx *pipes[MAX_PIPES]; 148 struct dc_state *state = link->dc->current_state; 149 uint8_t count; 150 int i; 151 struct dc_stream_update stream_update; 152 bool dpms_off = true; 153 struct link_resource link_res = {0}; 154 155 memset(&stream_update, 0, sizeof(stream_update)); 156 stream_update.dpms_off = &dpms_off; 157 158 link_get_master_pipes_with_dpms_on(link, state, &count, pipes); 159 160 for (i = 0; i < count; i++) { 161 stream_update.stream = pipes[i]->stream; 162 dc_commit_updates_for_stream(link->ctx->dc, NULL, 0, 163 pipes[i]->stream, &stream_update, 164 state); 165 } 166 167 /* link can be also enabled by vbios. In this case it is not recorded 168 * in pipe_ctx. Disable link phy here to make sure it is completely off 169 */ 170 dp_disable_link_phy(link, &link_res, link->connector_signal); 171 } 172 173 void link_resume(struct dc_link *link) 174 { 175 if (link->connector_signal != SIGNAL_TYPE_VIRTUAL) 176 program_hpd_filter(link); 177 } 178 179 /* This function returns true if the pipe is used to feed video signal directly 180 * to the link. 181 */ 182 static bool is_master_pipe_for_link(const struct dc_link *link, 183 const struct pipe_ctx *pipe) 184 { 185 return resource_is_pipe_type(pipe, OTG_MASTER) && 186 pipe->stream->link == link; 187 } 188 189 /* 190 * This function finds all master pipes feeding to a given link with dpms set to 191 * on in given dc state. 192 */ 193 void link_get_master_pipes_with_dpms_on(const struct dc_link *link, 194 struct dc_state *state, 195 uint8_t *count, 196 struct pipe_ctx *pipes[MAX_PIPES]) 197 { 198 int i; 199 struct pipe_ctx *pipe = NULL; 200 201 *count = 0; 202 for (i = 0; i < MAX_PIPES; i++) { 203 pipe = &state->res_ctx.pipe_ctx[i]; 204 205 if (is_master_pipe_for_link(link, pipe) && 206 pipe->stream->dpms_off == false) { 207 pipes[(*count)++] = pipe; 208 } 209 } 210 } 211 212 static bool get_ext_hdmi_settings(struct pipe_ctx *pipe_ctx, 213 enum engine_id eng_id, 214 struct ext_hdmi_settings *settings) 215 { 216 bool result = false; 217 int i = 0; 218 struct integrated_info *integrated_info = 219 pipe_ctx->stream->ctx->dc_bios->integrated_info; 220 221 if (integrated_info == NULL) 222 return false; 223 224 /* 225 * Get retimer settings from sbios for passing SI eye test for DCE11 226 * The setting values are varied based on board revision and port id 227 * Therefore the setting values of each ports is passed by sbios. 228 */ 229 230 // Check if current bios contains ext Hdmi settings 231 if (integrated_info->gpu_cap_info & 0x20) { 232 switch (eng_id) { 233 case ENGINE_ID_DIGA: 234 settings->slv_addr = integrated_info->dp0_ext_hdmi_slv_addr; 235 settings->reg_num = integrated_info->dp0_ext_hdmi_6g_reg_num; 236 settings->reg_num_6g = integrated_info->dp0_ext_hdmi_6g_reg_num; 237 memmove(settings->reg_settings, 238 integrated_info->dp0_ext_hdmi_reg_settings, 239 sizeof(integrated_info->dp0_ext_hdmi_reg_settings)); 240 memmove(settings->reg_settings_6g, 241 integrated_info->dp0_ext_hdmi_6g_reg_settings, 242 sizeof(integrated_info->dp0_ext_hdmi_6g_reg_settings)); 243 result = true; 244 break; 245 case ENGINE_ID_DIGB: 246 settings->slv_addr = integrated_info->dp1_ext_hdmi_slv_addr; 247 settings->reg_num = integrated_info->dp1_ext_hdmi_6g_reg_num; 248 settings->reg_num_6g = integrated_info->dp1_ext_hdmi_6g_reg_num; 249 memmove(settings->reg_settings, 250 integrated_info->dp1_ext_hdmi_reg_settings, 251 sizeof(integrated_info->dp1_ext_hdmi_reg_settings)); 252 memmove(settings->reg_settings_6g, 253 integrated_info->dp1_ext_hdmi_6g_reg_settings, 254 sizeof(integrated_info->dp1_ext_hdmi_6g_reg_settings)); 255 result = true; 256 break; 257 case ENGINE_ID_DIGC: 258 settings->slv_addr = integrated_info->dp2_ext_hdmi_slv_addr; 259 settings->reg_num = integrated_info->dp2_ext_hdmi_6g_reg_num; 260 settings->reg_num_6g = integrated_info->dp2_ext_hdmi_6g_reg_num; 261 memmove(settings->reg_settings, 262 integrated_info->dp2_ext_hdmi_reg_settings, 263 sizeof(integrated_info->dp2_ext_hdmi_reg_settings)); 264 memmove(settings->reg_settings_6g, 265 integrated_info->dp2_ext_hdmi_6g_reg_settings, 266 sizeof(integrated_info->dp2_ext_hdmi_6g_reg_settings)); 267 result = true; 268 break; 269 case ENGINE_ID_DIGD: 270 settings->slv_addr = integrated_info->dp3_ext_hdmi_slv_addr; 271 settings->reg_num = integrated_info->dp3_ext_hdmi_6g_reg_num; 272 settings->reg_num_6g = integrated_info->dp3_ext_hdmi_6g_reg_num; 273 memmove(settings->reg_settings, 274 integrated_info->dp3_ext_hdmi_reg_settings, 275 sizeof(integrated_info->dp3_ext_hdmi_reg_settings)); 276 memmove(settings->reg_settings_6g, 277 integrated_info->dp3_ext_hdmi_6g_reg_settings, 278 sizeof(integrated_info->dp3_ext_hdmi_6g_reg_settings)); 279 result = true; 280 break; 281 default: 282 break; 283 } 284 285 if (result == true) { 286 // Validate settings from bios integrated info table 287 if (settings->slv_addr == 0) 288 return false; 289 if (settings->reg_num > 9) 290 return false; 291 if (settings->reg_num_6g > 3) 292 return false; 293 294 for (i = 0; i < settings->reg_num; i++) { 295 if (settings->reg_settings[i].i2c_reg_index > 0x20) 296 return false; 297 } 298 299 for (i = 0; i < settings->reg_num_6g; i++) { 300 if (settings->reg_settings_6g[i].i2c_reg_index > 0x20) 301 return false; 302 } 303 } 304 } 305 306 return result; 307 } 308 309 static bool write_i2c(struct pipe_ctx *pipe_ctx, 310 uint8_t address, uint8_t *buffer, uint32_t length) 311 { 312 struct i2c_command cmd = {0}; 313 struct i2c_payload payload = {0}; 314 315 memset(&payload, 0, sizeof(payload)); 316 memset(&cmd, 0, sizeof(cmd)); 317 318 cmd.number_of_payloads = 1; 319 cmd.engine = I2C_COMMAND_ENGINE_DEFAULT; 320 cmd.speed = pipe_ctx->stream->ctx->dc->caps.i2c_speed_in_khz; 321 322 payload.address = address; 323 payload.data = buffer; 324 payload.length = length; 325 payload.write = true; 326 cmd.payloads = &payload; 327 328 if (dm_helpers_submit_i2c(pipe_ctx->stream->ctx, 329 pipe_ctx->stream->link, &cmd)) 330 return true; 331 332 return false; 333 } 334 335 static void write_i2c_retimer_setting( 336 struct pipe_ctx *pipe_ctx, 337 bool is_vga_mode, 338 bool is_over_340mhz, 339 struct ext_hdmi_settings *settings) 340 { 341 uint8_t slave_address = (settings->slv_addr >> 1); 342 uint8_t buffer[2]; 343 const uint8_t apply_rx_tx_change = 0x4; 344 uint8_t offset = 0xA; 345 uint8_t value = 0; 346 int i = 0; 347 bool i2c_success = false; 348 DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger); 349 350 memset(&buffer, 0, sizeof(buffer)); 351 352 /* Start Ext-Hdmi programming*/ 353 354 for (i = 0; i < settings->reg_num; i++) { 355 /* Apply 3G settings */ 356 if (settings->reg_settings[i].i2c_reg_index <= 0x20) { 357 358 buffer[0] = settings->reg_settings[i].i2c_reg_index; 359 buffer[1] = settings->reg_settings[i].i2c_reg_val; 360 i2c_success = write_i2c(pipe_ctx, slave_address, 361 buffer, sizeof(buffer)); 362 RETIMER_REDRIVER_INFO("retimer write to slave_address = 0x%x,\ 363 offset = 0x%x, reg_val= 0x%x, i2c_success = %d\n", 364 slave_address, buffer[0], buffer[1], i2c_success?1:0); 365 366 if (!i2c_success) 367 goto i2c_write_fail; 368 369 /* Based on DP159 specs, APPLY_RX_TX_CHANGE bit in 0x0A 370 * needs to be set to 1 on every 0xA-0xC write. 371 */ 372 if (settings->reg_settings[i].i2c_reg_index == 0xA || 373 settings->reg_settings[i].i2c_reg_index == 0xB || 374 settings->reg_settings[i].i2c_reg_index == 0xC) { 375 376 /* Query current value from offset 0xA */ 377 if (settings->reg_settings[i].i2c_reg_index == 0xA) 378 value = settings->reg_settings[i].i2c_reg_val; 379 else { 380 i2c_success = 381 link_query_ddc_data( 382 pipe_ctx->stream->link->ddc, 383 slave_address, &offset, 1, &value, 1); 384 if (!i2c_success) 385 goto i2c_write_fail; 386 } 387 388 buffer[0] = offset; 389 /* Set APPLY_RX_TX_CHANGE bit to 1 */ 390 buffer[1] = value | apply_rx_tx_change; 391 i2c_success = write_i2c(pipe_ctx, slave_address, 392 buffer, sizeof(buffer)); 393 RETIMER_REDRIVER_INFO("retimer write to slave_address = 0x%x,\ 394 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 395 slave_address, buffer[0], buffer[1], i2c_success?1:0); 396 if (!i2c_success) 397 goto i2c_write_fail; 398 } 399 } 400 } 401 402 /* Apply 3G settings */ 403 if (is_over_340mhz) { 404 for (i = 0; i < settings->reg_num_6g; i++) { 405 /* Apply 3G settings */ 406 if (settings->reg_settings[i].i2c_reg_index <= 0x20) { 407 408 buffer[0] = settings->reg_settings_6g[i].i2c_reg_index; 409 buffer[1] = settings->reg_settings_6g[i].i2c_reg_val; 410 i2c_success = write_i2c(pipe_ctx, slave_address, 411 buffer, sizeof(buffer)); 412 RETIMER_REDRIVER_INFO("above 340Mhz: retimer write to slave_address = 0x%x,\ 413 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 414 slave_address, buffer[0], buffer[1], i2c_success?1:0); 415 416 if (!i2c_success) 417 goto i2c_write_fail; 418 419 /* Based on DP159 specs, APPLY_RX_TX_CHANGE bit in 0x0A 420 * needs to be set to 1 on every 0xA-0xC write. 421 */ 422 if (settings->reg_settings_6g[i].i2c_reg_index == 0xA || 423 settings->reg_settings_6g[i].i2c_reg_index == 0xB || 424 settings->reg_settings_6g[i].i2c_reg_index == 0xC) { 425 426 /* Query current value from offset 0xA */ 427 if (settings->reg_settings_6g[i].i2c_reg_index == 0xA) 428 value = settings->reg_settings_6g[i].i2c_reg_val; 429 else { 430 i2c_success = 431 link_query_ddc_data( 432 pipe_ctx->stream->link->ddc, 433 slave_address, &offset, 1, &value, 1); 434 if (!i2c_success) 435 goto i2c_write_fail; 436 } 437 438 buffer[0] = offset; 439 /* Set APPLY_RX_TX_CHANGE bit to 1 */ 440 buffer[1] = value | apply_rx_tx_change; 441 i2c_success = write_i2c(pipe_ctx, slave_address, 442 buffer, sizeof(buffer)); 443 RETIMER_REDRIVER_INFO("retimer write to slave_address = 0x%x,\ 444 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 445 slave_address, buffer[0], buffer[1], i2c_success?1:0); 446 if (!i2c_success) 447 goto i2c_write_fail; 448 } 449 } 450 } 451 } 452 453 if (is_vga_mode) { 454 /* Program additional settings if using 640x480 resolution */ 455 456 /* Write offset 0xFF to 0x01 */ 457 buffer[0] = 0xff; 458 buffer[1] = 0x01; 459 i2c_success = write_i2c(pipe_ctx, slave_address, 460 buffer, sizeof(buffer)); 461 RETIMER_REDRIVER_INFO("retimer write to slave_address = 0x%x,\ 462 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 463 slave_address, buffer[0], buffer[1], i2c_success?1:0); 464 if (!i2c_success) 465 goto i2c_write_fail; 466 467 /* Write offset 0x00 to 0x23 */ 468 buffer[0] = 0x00; 469 buffer[1] = 0x23; 470 i2c_success = write_i2c(pipe_ctx, slave_address, 471 buffer, sizeof(buffer)); 472 RETIMER_REDRIVER_INFO("retimer write to slave_address = 0x%x,\ 473 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 474 slave_address, buffer[0], buffer[1], i2c_success?1:0); 475 if (!i2c_success) 476 goto i2c_write_fail; 477 478 /* Write offset 0xff to 0x00 */ 479 buffer[0] = 0xff; 480 buffer[1] = 0x00; 481 i2c_success = write_i2c(pipe_ctx, slave_address, 482 buffer, sizeof(buffer)); 483 RETIMER_REDRIVER_INFO("retimer write to slave_address = 0x%x,\ 484 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 485 slave_address, buffer[0], buffer[1], i2c_success?1:0); 486 if (!i2c_success) 487 goto i2c_write_fail; 488 489 } 490 491 return; 492 493 i2c_write_fail: 494 DC_LOG_DEBUG("Set retimer failed"); 495 } 496 497 static void write_i2c_default_retimer_setting( 498 struct pipe_ctx *pipe_ctx, 499 bool is_vga_mode, 500 bool is_over_340mhz) 501 { 502 uint8_t slave_address = (0xBA >> 1); 503 uint8_t buffer[2]; 504 bool i2c_success = false; 505 DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger); 506 507 memset(&buffer, 0, sizeof(buffer)); 508 509 /* Program Slave Address for tuning single integrity */ 510 /* Write offset 0x0A to 0x13 */ 511 buffer[0] = 0x0A; 512 buffer[1] = 0x13; 513 i2c_success = write_i2c(pipe_ctx, slave_address, 514 buffer, sizeof(buffer)); 515 RETIMER_REDRIVER_INFO("retimer writes default setting to slave_address = 0x%x,\ 516 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 517 slave_address, buffer[0], buffer[1], i2c_success?1:0); 518 if (!i2c_success) 519 goto i2c_write_fail; 520 521 /* Write offset 0x0A to 0x17 */ 522 buffer[0] = 0x0A; 523 buffer[1] = 0x17; 524 i2c_success = write_i2c(pipe_ctx, slave_address, 525 buffer, sizeof(buffer)); 526 RETIMER_REDRIVER_INFO("retimer write to slave_addr = 0x%x,\ 527 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 528 slave_address, buffer[0], buffer[1], i2c_success?1:0); 529 if (!i2c_success) 530 goto i2c_write_fail; 531 532 /* Write offset 0x0B to 0xDA or 0xD8 */ 533 buffer[0] = 0x0B; 534 buffer[1] = is_over_340mhz ? 0xDA : 0xD8; 535 i2c_success = write_i2c(pipe_ctx, slave_address, 536 buffer, sizeof(buffer)); 537 RETIMER_REDRIVER_INFO("retimer write to slave_addr = 0x%x,\ 538 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 539 slave_address, buffer[0], buffer[1], i2c_success?1:0); 540 if (!i2c_success) 541 goto i2c_write_fail; 542 543 /* Write offset 0x0A to 0x17 */ 544 buffer[0] = 0x0A; 545 buffer[1] = 0x17; 546 i2c_success = write_i2c(pipe_ctx, slave_address, 547 buffer, sizeof(buffer)); 548 RETIMER_REDRIVER_INFO("retimer write to slave_addr = 0x%x,\ 549 offset = 0x%x, reg_val= 0x%x, i2c_success = %d\n", 550 slave_address, buffer[0], buffer[1], i2c_success?1:0); 551 if (!i2c_success) 552 goto i2c_write_fail; 553 554 /* Write offset 0x0C to 0x1D or 0x91 */ 555 buffer[0] = 0x0C; 556 buffer[1] = is_over_340mhz ? 0x1D : 0x91; 557 i2c_success = write_i2c(pipe_ctx, slave_address, 558 buffer, sizeof(buffer)); 559 RETIMER_REDRIVER_INFO("retimer write to slave_addr = 0x%x,\ 560 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 561 slave_address, buffer[0], buffer[1], i2c_success?1:0); 562 if (!i2c_success) 563 goto i2c_write_fail; 564 565 /* Write offset 0x0A to 0x17 */ 566 buffer[0] = 0x0A; 567 buffer[1] = 0x17; 568 i2c_success = write_i2c(pipe_ctx, slave_address, 569 buffer, sizeof(buffer)); 570 RETIMER_REDRIVER_INFO("retimer write to slave_addr = 0x%x,\ 571 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 572 slave_address, buffer[0], buffer[1], i2c_success?1:0); 573 if (!i2c_success) 574 goto i2c_write_fail; 575 576 577 if (is_vga_mode) { 578 /* Program additional settings if using 640x480 resolution */ 579 580 /* Write offset 0xFF to 0x01 */ 581 buffer[0] = 0xff; 582 buffer[1] = 0x01; 583 i2c_success = write_i2c(pipe_ctx, slave_address, 584 buffer, sizeof(buffer)); 585 RETIMER_REDRIVER_INFO("retimer write to slave_addr = 0x%x,\ 586 offset = 0x%x, reg_val = 0x%x, i2c_success = %d\n", 587 slave_address, buffer[0], buffer[1], i2c_success?1:0); 588 if (!i2c_success) 589 goto i2c_write_fail; 590 591 /* Write offset 0x00 to 0x23 */ 592 buffer[0] = 0x00; 593 buffer[1] = 0x23; 594 i2c_success = write_i2c(pipe_ctx, slave_address, 595 buffer, sizeof(buffer)); 596 RETIMER_REDRIVER_INFO("retimer write to slave_addr = 0x%x,\ 597 offset = 0x%x, reg_val= 0x%x, i2c_success = %d\n", 598 slave_address, buffer[0], buffer[1], i2c_success?1:0); 599 if (!i2c_success) 600 goto i2c_write_fail; 601 602 /* Write offset 0xff to 0x00 */ 603 buffer[0] = 0xff; 604 buffer[1] = 0x00; 605 i2c_success = write_i2c(pipe_ctx, slave_address, 606 buffer, sizeof(buffer)); 607 RETIMER_REDRIVER_INFO("retimer write default setting to slave_addr = 0x%x,\ 608 offset = 0x%x, reg_val= 0x%x, i2c_success = %d end here\n", 609 slave_address, buffer[0], buffer[1], i2c_success?1:0); 610 if (!i2c_success) 611 goto i2c_write_fail; 612 } 613 614 return; 615 616 i2c_write_fail: 617 DC_LOG_DEBUG("Set default retimer failed"); 618 } 619 620 static void write_i2c_redriver_setting( 621 struct pipe_ctx *pipe_ctx, 622 bool is_over_340mhz) 623 { 624 uint8_t slave_address = (0xF0 >> 1); 625 uint8_t buffer[16]; 626 bool i2c_success = false; 627 DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger); 628 629 memset(&buffer, 0, sizeof(buffer)); 630 631 // Program Slave Address for tuning single integrity 632 buffer[3] = 0x4E; 633 buffer[4] = 0x4E; 634 buffer[5] = 0x4E; 635 buffer[6] = is_over_340mhz ? 0x4E : 0x4A; 636 637 i2c_success = write_i2c(pipe_ctx, slave_address, 638 buffer, sizeof(buffer)); 639 RETIMER_REDRIVER_INFO("redriver write 0 to all 16 reg offset expect following:\n\ 640 \t slave_addr = 0x%x, offset[3] = 0x%x, offset[4] = 0x%x,\ 641 offset[5] = 0x%x,offset[6] is_over_340mhz = 0x%x,\ 642 i2c_success = %d\n", 643 slave_address, buffer[3], buffer[4], buffer[5], buffer[6], i2c_success?1:0); 644 645 if (!i2c_success) 646 DC_LOG_DEBUG("Set redriver failed"); 647 } 648 649 static void update_psp_stream_config(struct pipe_ctx *pipe_ctx, bool dpms_off) 650 { 651 struct cp_psp *cp_psp = &pipe_ctx->stream->ctx->cp_psp; 652 struct link_encoder *link_enc = NULL; 653 struct cp_psp_stream_config config = {0}; 654 enum dp_panel_mode panel_mode = 655 dp_get_panel_mode(pipe_ctx->stream->link); 656 657 if (cp_psp == NULL || cp_psp->funcs.update_stream_config == NULL) 658 return; 659 660 link_enc = link_enc_cfg_get_link_enc(pipe_ctx->stream->link); 661 ASSERT(link_enc); 662 if (link_enc == NULL) 663 return; 664 665 /* otg instance */ 666 config.otg_inst = (uint8_t) pipe_ctx->stream_res.tg->inst; 667 668 /* dig front end */ 669 config.dig_fe = (uint8_t) pipe_ctx->stream_res.stream_enc->stream_enc_inst; 670 671 /* stream encoder index */ 672 config.stream_enc_idx = pipe_ctx->stream_res.stream_enc->id - ENGINE_ID_DIGA; 673 if (dp_is_128b_132b_signal(pipe_ctx)) 674 config.stream_enc_idx = 675 pipe_ctx->stream_res.hpo_dp_stream_enc->id - ENGINE_ID_HPO_DP_0; 676 677 /* dig back end */ 678 config.dig_be = pipe_ctx->stream->link->link_enc_hw_inst; 679 680 /* link encoder index */ 681 config.link_enc_idx = link_enc->transmitter - TRANSMITTER_UNIPHY_A; 682 if (dp_is_128b_132b_signal(pipe_ctx)) 683 config.link_enc_idx = pipe_ctx->link_res.hpo_dp_link_enc->inst; 684 685 /* dio output index is dpia index for DPIA endpoint & dcio index by default */ 686 if (pipe_ctx->stream->link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) 687 config.dio_output_idx = pipe_ctx->stream->link->link_id.enum_id - ENUM_ID_1; 688 else 689 config.dio_output_idx = link_enc->transmitter - TRANSMITTER_UNIPHY_A; 690 691 692 /* phy index */ 693 config.phy_idx = resource_transmitter_to_phy_idx( 694 pipe_ctx->stream->link->dc, link_enc->transmitter); 695 if (pipe_ctx->stream->link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) 696 /* USB4 DPIA doesn't use PHY in our soc, initialize it to 0 */ 697 config.phy_idx = 0; 698 699 /* stream properties */ 700 config.assr_enabled = (panel_mode == DP_PANEL_MODE_EDP) ? 1 : 0; 701 config.mst_enabled = (pipe_ctx->stream->signal == 702 SIGNAL_TYPE_DISPLAY_PORT_MST) ? 1 : 0; 703 config.dp2_enabled = dp_is_128b_132b_signal(pipe_ctx) ? 1 : 0; 704 config.usb4_enabled = (pipe_ctx->stream->link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) ? 705 1 : 0; 706 config.dpms_off = dpms_off; 707 708 /* dm stream context */ 709 config.dm_stream_ctx = pipe_ctx->stream->dm_stream_context; 710 711 cp_psp->funcs.update_stream_config(cp_psp->handle, &config); 712 } 713 714 static void set_avmute(struct pipe_ctx *pipe_ctx, bool enable) 715 { 716 struct dc *dc = pipe_ctx->stream->ctx->dc; 717 718 if (!dc_is_hdmi_signal(pipe_ctx->stream->signal)) 719 return; 720 721 dc->hwss.set_avmute(pipe_ctx, enable); 722 } 723 724 static void enable_mst_on_sink(struct dc_link *link, bool enable) 725 { 726 unsigned char mstmCntl; 727 728 core_link_read_dpcd(link, DP_MSTM_CTRL, &mstmCntl, 1); 729 if (enable) 730 mstmCntl |= DP_MST_EN; 731 else 732 mstmCntl &= (~DP_MST_EN); 733 734 core_link_write_dpcd(link, DP_MSTM_CTRL, &mstmCntl, 1); 735 } 736 737 static void dsc_optc_config_log(struct display_stream_compressor *dsc, 738 struct dsc_optc_config *config) 739 { 740 uint32_t precision = 1 << 28; 741 uint32_t bytes_per_pixel_int = config->bytes_per_pixel / precision; 742 uint32_t bytes_per_pixel_mod = config->bytes_per_pixel % precision; 743 uint64_t ll_bytes_per_pix_fraq = bytes_per_pixel_mod; 744 DC_LOGGER_INIT(dsc->ctx->logger); 745 746 /* 7 fractional digits decimal precision for bytes per pixel is enough because DSC 747 * bits per pixel precision is 1/16th of a pixel, which means bytes per pixel precision is 748 * 1/16/8 = 1/128 of a byte, or 0.0078125 decimal 749 */ 750 ll_bytes_per_pix_fraq *= 10000000; 751 ll_bytes_per_pix_fraq /= precision; 752 753 DC_LOG_DSC("\tbytes_per_pixel 0x%08x (%d.%07d)", 754 config->bytes_per_pixel, bytes_per_pixel_int, (uint32_t)ll_bytes_per_pix_fraq); 755 DC_LOG_DSC("\tis_pixel_format_444 %d", config->is_pixel_format_444); 756 DC_LOG_DSC("\tslice_width %d", config->slice_width); 757 } 758 759 static bool dp_set_dsc_on_rx(struct pipe_ctx *pipe_ctx, bool enable) 760 { 761 struct dc *dc = pipe_ctx->stream->ctx->dc; 762 struct dc_stream_state *stream = pipe_ctx->stream; 763 bool result = false; 764 765 if (dc_is_virtual_signal(stream->signal)) 766 result = true; 767 else 768 result = dm_helpers_dp_write_dsc_enable(dc->ctx, stream, enable); 769 return result; 770 } 771 772 /* The stream with these settings can be sent (unblanked) only after DSC was enabled on RX first, 773 * i.e. after dp_enable_dsc_on_rx() had been called 774 */ 775 void link_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable) 776 { 777 struct display_stream_compressor *dsc = pipe_ctx->stream_res.dsc; 778 struct dc_stream_state *stream = pipe_ctx->stream; 779 struct pipe_ctx *odm_pipe; 780 int opp_cnt = 1; 781 DC_LOGGER_INIT(dsc->ctx->logger); 782 783 for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) 784 opp_cnt++; 785 786 if (enable) { 787 struct dsc_config dsc_cfg; 788 struct dsc_optc_config dsc_optc_cfg; 789 enum optc_dsc_mode optc_dsc_mode; 790 791 /* Enable DSC hw block */ 792 dsc_cfg.pic_width = (stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right) / opp_cnt; 793 dsc_cfg.pic_height = stream->timing.v_addressable + stream->timing.v_border_top + stream->timing.v_border_bottom; 794 dsc_cfg.pixel_encoding = stream->timing.pixel_encoding; 795 dsc_cfg.color_depth = stream->timing.display_color_depth; 796 dsc_cfg.is_odm = pipe_ctx->next_odm_pipe ? true : false; 797 dsc_cfg.dc_dsc_cfg = stream->timing.dsc_cfg; 798 ASSERT(dsc_cfg.dc_dsc_cfg.num_slices_h % opp_cnt == 0); 799 dsc_cfg.dc_dsc_cfg.num_slices_h /= opp_cnt; 800 801 dsc->funcs->dsc_set_config(dsc, &dsc_cfg, &dsc_optc_cfg); 802 dsc->funcs->dsc_enable(dsc, pipe_ctx->stream_res.opp->inst); 803 for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) { 804 struct display_stream_compressor *odm_dsc = odm_pipe->stream_res.dsc; 805 806 odm_dsc->funcs->dsc_set_config(odm_dsc, &dsc_cfg, &dsc_optc_cfg); 807 odm_dsc->funcs->dsc_enable(odm_dsc, odm_pipe->stream_res.opp->inst); 808 } 809 dsc_cfg.dc_dsc_cfg.num_slices_h *= opp_cnt; 810 dsc_cfg.pic_width *= opp_cnt; 811 812 optc_dsc_mode = dsc_optc_cfg.is_pixel_format_444 ? OPTC_DSC_ENABLED_444 : OPTC_DSC_ENABLED_NATIVE_SUBSAMPLED; 813 814 /* Enable DSC in encoder */ 815 if (dc_is_dp_signal(stream->signal) && !dp_is_128b_132b_signal(pipe_ctx)) { 816 DC_LOG_DSC("Setting stream encoder DSC config for engine %d:", (int)pipe_ctx->stream_res.stream_enc->id); 817 dsc_optc_config_log(dsc, &dsc_optc_cfg); 818 pipe_ctx->stream_res.stream_enc->funcs->dp_set_dsc_config(pipe_ctx->stream_res.stream_enc, 819 optc_dsc_mode, 820 dsc_optc_cfg.bytes_per_pixel, 821 dsc_optc_cfg.slice_width); 822 823 /* PPS SDP is set elsewhere because it has to be done after DIG FE is connected to DIG BE */ 824 } 825 826 /* Enable DSC in OPTC */ 827 DC_LOG_DSC("Setting optc DSC config for tg instance %d:", pipe_ctx->stream_res.tg->inst); 828 dsc_optc_config_log(dsc, &dsc_optc_cfg); 829 pipe_ctx->stream_res.tg->funcs->set_dsc_config(pipe_ctx->stream_res.tg, 830 optc_dsc_mode, 831 dsc_optc_cfg.bytes_per_pixel, 832 dsc_optc_cfg.slice_width); 833 } else { 834 /* disable DSC in OPTC */ 835 pipe_ctx->stream_res.tg->funcs->set_dsc_config( 836 pipe_ctx->stream_res.tg, 837 OPTC_DSC_DISABLED, 0, 0); 838 839 /* disable DSC in stream encoder */ 840 if (dc_is_dp_signal(stream->signal)) { 841 if (dp_is_128b_132b_signal(pipe_ctx)) 842 pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->dp_set_dsc_pps_info_packet( 843 pipe_ctx->stream_res.hpo_dp_stream_enc, 844 false, 845 NULL, 846 true); 847 else { 848 pipe_ctx->stream_res.stream_enc->funcs->dp_set_dsc_config( 849 pipe_ctx->stream_res.stream_enc, 850 OPTC_DSC_DISABLED, 0, 0); 851 pipe_ctx->stream_res.stream_enc->funcs->dp_set_dsc_pps_info_packet( 852 pipe_ctx->stream_res.stream_enc, false, NULL, true); 853 } 854 } 855 856 /* disable DSC block */ 857 pipe_ctx->stream_res.dsc->funcs->dsc_disable(pipe_ctx->stream_res.dsc); 858 for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) 859 odm_pipe->stream_res.dsc->funcs->dsc_disable(odm_pipe->stream_res.dsc); 860 } 861 } 862 863 /* 864 * For dynamic bpp change case, dsc is programmed with MASTER_UPDATE_LOCK enabled; 865 * hence PPS info packet update need to use frame update instead of immediate update. 866 * Added parameter immediate_update for this purpose. 867 * The decision to use frame update is hard-coded in function dp_update_dsc_config(), 868 * which is the only place where a "false" would be passed in for param immediate_update. 869 * 870 * immediate_update is only applicable when DSC is enabled. 871 */ 872 bool link_set_dsc_pps_packet(struct pipe_ctx *pipe_ctx, bool enable, bool immediate_update) 873 { 874 struct display_stream_compressor *dsc = pipe_ctx->stream_res.dsc; 875 struct dc_stream_state *stream = pipe_ctx->stream; 876 877 if (!pipe_ctx->stream->timing.flags.DSC) 878 return false; 879 880 if (!dsc) 881 return false; 882 883 DC_LOGGER_INIT(dsc->ctx->logger); 884 885 if (enable) { 886 struct dsc_config dsc_cfg; 887 uint8_t dsc_packed_pps[128]; 888 889 memset(&dsc_cfg, 0, sizeof(dsc_cfg)); 890 memset(dsc_packed_pps, 0, 128); 891 892 /* Enable DSC hw block */ 893 dsc_cfg.pic_width = stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right; 894 dsc_cfg.pic_height = stream->timing.v_addressable + stream->timing.v_border_top + stream->timing.v_border_bottom; 895 dsc_cfg.pixel_encoding = stream->timing.pixel_encoding; 896 dsc_cfg.color_depth = stream->timing.display_color_depth; 897 dsc_cfg.is_odm = pipe_ctx->next_odm_pipe ? true : false; 898 dsc_cfg.dc_dsc_cfg = stream->timing.dsc_cfg; 899 900 dsc->funcs->dsc_get_packed_pps(dsc, &dsc_cfg, &dsc_packed_pps[0]); 901 memcpy(&stream->dsc_packed_pps[0], &dsc_packed_pps[0], sizeof(stream->dsc_packed_pps)); 902 if (dc_is_dp_signal(stream->signal)) { 903 DC_LOG_DSC("Setting stream encoder DSC PPS SDP for engine %d\n", (int)pipe_ctx->stream_res.stream_enc->id); 904 if (dp_is_128b_132b_signal(pipe_ctx)) 905 pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->dp_set_dsc_pps_info_packet( 906 pipe_ctx->stream_res.hpo_dp_stream_enc, 907 true, 908 &dsc_packed_pps[0], 909 immediate_update); 910 else 911 pipe_ctx->stream_res.stream_enc->funcs->dp_set_dsc_pps_info_packet( 912 pipe_ctx->stream_res.stream_enc, 913 true, 914 &dsc_packed_pps[0], 915 immediate_update); 916 } 917 } else { 918 /* disable DSC PPS in stream encoder */ 919 memset(&stream->dsc_packed_pps[0], 0, sizeof(stream->dsc_packed_pps)); 920 if (dc_is_dp_signal(stream->signal)) { 921 if (dp_is_128b_132b_signal(pipe_ctx)) 922 pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->dp_set_dsc_pps_info_packet( 923 pipe_ctx->stream_res.hpo_dp_stream_enc, 924 false, 925 NULL, 926 true); 927 else 928 pipe_ctx->stream_res.stream_enc->funcs->dp_set_dsc_pps_info_packet( 929 pipe_ctx->stream_res.stream_enc, false, NULL, true); 930 } 931 } 932 933 return true; 934 } 935 936 bool link_set_dsc_enable(struct pipe_ctx *pipe_ctx, bool enable) 937 { 938 struct display_stream_compressor *dsc = pipe_ctx->stream_res.dsc; 939 bool result = false; 940 941 if (!pipe_ctx->stream->timing.flags.DSC) 942 goto out; 943 if (!dsc) 944 goto out; 945 946 if (enable) { 947 { 948 link_set_dsc_on_stream(pipe_ctx, true); 949 result = true; 950 } 951 } else { 952 dp_set_dsc_on_rx(pipe_ctx, false); 953 link_set_dsc_on_stream(pipe_ctx, false); 954 result = true; 955 } 956 out: 957 return result; 958 } 959 960 bool link_update_dsc_config(struct pipe_ctx *pipe_ctx) 961 { 962 struct display_stream_compressor *dsc = pipe_ctx->stream_res.dsc; 963 964 if (!pipe_ctx->stream->timing.flags.DSC) 965 return false; 966 if (!dsc) 967 return false; 968 969 link_set_dsc_on_stream(pipe_ctx, true); 970 link_set_dsc_pps_packet(pipe_ctx, true, false); 971 return true; 972 } 973 974 static void enable_stream_features(struct pipe_ctx *pipe_ctx) 975 { 976 struct dc_stream_state *stream = pipe_ctx->stream; 977 978 if (pipe_ctx->stream->signal != SIGNAL_TYPE_DISPLAY_PORT_MST) { 979 struct dc_link *link = stream->link; 980 union down_spread_ctrl old_downspread; 981 union down_spread_ctrl new_downspread; 982 983 memset(&old_downspread, 0, sizeof(old_downspread)); 984 985 core_link_read_dpcd(link, DP_DOWNSPREAD_CTRL, 986 &old_downspread.raw, sizeof(old_downspread)); 987 988 new_downspread.raw = old_downspread.raw; 989 990 new_downspread.bits.IGNORE_MSA_TIMING_PARAM = 991 (stream->ignore_msa_timing_param) ? 1 : 0; 992 993 if (new_downspread.raw != old_downspread.raw) { 994 core_link_write_dpcd(link, DP_DOWNSPREAD_CTRL, 995 &new_downspread.raw, sizeof(new_downspread)); 996 } 997 998 } else { 999 dm_helpers_mst_enable_stream_features(stream); 1000 } 1001 } 1002 1003 static void log_vcp_x_y(const struct dc_link *link, struct fixed31_32 avg_time_slots_per_mtp) 1004 { 1005 const uint32_t VCP_Y_PRECISION = 1000; 1006 uint64_t vcp_x, vcp_y; 1007 DC_LOGGER_INIT(link->ctx->logger); 1008 1009 // Add 0.5*(1/VCP_Y_PRECISION) to round up to decimal precision 1010 avg_time_slots_per_mtp = dc_fixpt_add( 1011 avg_time_slots_per_mtp, 1012 dc_fixpt_from_fraction( 1013 1, 1014 2*VCP_Y_PRECISION)); 1015 1016 vcp_x = dc_fixpt_floor( 1017 avg_time_slots_per_mtp); 1018 vcp_y = dc_fixpt_floor( 1019 dc_fixpt_mul_int( 1020 dc_fixpt_sub_int( 1021 avg_time_slots_per_mtp, 1022 dc_fixpt_floor( 1023 avg_time_slots_per_mtp)), 1024 VCP_Y_PRECISION)); 1025 1026 1027 if (link->type == dc_connection_mst_branch) 1028 DC_LOG_DP2("MST Update Payload: set_throttled_vcp_size slot X.Y for MST stream " 1029 "X: %llu " 1030 "Y: %llu/%d", 1031 vcp_x, 1032 vcp_y, 1033 VCP_Y_PRECISION); 1034 else 1035 DC_LOG_DP2("SST Update Payload: set_throttled_vcp_size slot X.Y for SST stream " 1036 "X: %llu " 1037 "Y: %llu/%d", 1038 vcp_x, 1039 vcp_y, 1040 VCP_Y_PRECISION); 1041 } 1042 1043 static struct fixed31_32 get_pbn_per_slot(struct dc_stream_state *stream) 1044 { 1045 struct fixed31_32 mbytes_per_sec; 1046 uint32_t link_rate_in_mbytes_per_sec = dp_link_bandwidth_kbps(stream->link, 1047 &stream->link->cur_link_settings); 1048 link_rate_in_mbytes_per_sec /= 8000; /* Kbits to MBytes */ 1049 1050 mbytes_per_sec = dc_fixpt_from_int(link_rate_in_mbytes_per_sec); 1051 1052 return dc_fixpt_div_int(mbytes_per_sec, 54); 1053 } 1054 1055 static struct fixed31_32 get_pbn_from_bw_in_kbps(uint64_t kbps) 1056 { 1057 struct fixed31_32 peak_kbps; 1058 uint32_t numerator = 0; 1059 uint32_t denominator = 1; 1060 1061 /* 1062 * margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006 1063 * The unit of 54/64Mbytes/sec is an arbitrary unit chosen based on 1064 * common multiplier to render an integer PBN for all link rate/lane 1065 * counts combinations 1066 * calculate 1067 * peak_kbps *= (1006/1000) 1068 * peak_kbps *= (64/54) 1069 * peak_kbps *= 8 convert to bytes 1070 */ 1071 1072 numerator = 64 * PEAK_FACTOR_X1000; 1073 denominator = 54 * 8 * 1000 * 1000; 1074 kbps *= numerator; 1075 peak_kbps = dc_fixpt_from_fraction(kbps, denominator); 1076 1077 return peak_kbps; 1078 } 1079 1080 static struct fixed31_32 get_pbn_from_timing(struct pipe_ctx *pipe_ctx) 1081 { 1082 uint64_t kbps; 1083 enum dc_link_encoding_format link_encoding; 1084 1085 if (dp_is_128b_132b_signal(pipe_ctx)) 1086 link_encoding = DC_LINK_ENCODING_DP_128b_132b; 1087 else 1088 link_encoding = DC_LINK_ENCODING_DP_8b_10b; 1089 1090 kbps = dc_bandwidth_in_kbps_from_timing(&pipe_ctx->stream->timing, link_encoding); 1091 return get_pbn_from_bw_in_kbps(kbps); 1092 } 1093 1094 1095 // TODO - DP2.0 Link: Fix get_lane_status to handle LTTPR offset (SST and MST) 1096 static void get_lane_status( 1097 struct dc_link *link, 1098 uint32_t lane_count, 1099 union lane_status *status, 1100 union lane_align_status_updated *status_updated) 1101 { 1102 unsigned int lane; 1103 uint8_t dpcd_buf[3] = {0}; 1104 1105 if (status == NULL || status_updated == NULL) { 1106 return; 1107 } 1108 1109 core_link_read_dpcd( 1110 link, 1111 DP_LANE0_1_STATUS, 1112 dpcd_buf, 1113 sizeof(dpcd_buf)); 1114 1115 for (lane = 0; lane < lane_count; lane++) { 1116 status[lane].raw = dp_get_nibble_at_index(&dpcd_buf[0], lane); 1117 } 1118 1119 status_updated->raw = dpcd_buf[2]; 1120 } 1121 1122 static bool poll_for_allocation_change_trigger(struct dc_link *link) 1123 { 1124 /* 1125 * wait for ACT handled 1126 */ 1127 int i; 1128 const int act_retries = 30; 1129 enum act_return_status result = ACT_FAILED; 1130 union payload_table_update_status update_status = {0}; 1131 union lane_status dpcd_lane_status[LANE_COUNT_DP_MAX]; 1132 union lane_align_status_updated lane_status_updated; 1133 DC_LOGGER_INIT(link->ctx->logger); 1134 1135 if (link->aux_access_disabled) 1136 return true; 1137 for (i = 0; i < act_retries; i++) { 1138 get_lane_status(link, link->cur_link_settings.lane_count, dpcd_lane_status, &lane_status_updated); 1139 1140 if (!dp_is_cr_done(link->cur_link_settings.lane_count, dpcd_lane_status) || 1141 !dp_is_ch_eq_done(link->cur_link_settings.lane_count, dpcd_lane_status) || 1142 !dp_is_symbol_locked(link->cur_link_settings.lane_count, dpcd_lane_status) || 1143 !dp_is_interlane_aligned(lane_status_updated)) { 1144 DC_LOG_ERROR("SST Update Payload: Link loss occurred while " 1145 "polling for ACT handled."); 1146 result = ACT_LINK_LOST; 1147 break; 1148 } 1149 core_link_read_dpcd( 1150 link, 1151 DP_PAYLOAD_TABLE_UPDATE_STATUS, 1152 &update_status.raw, 1153 1); 1154 1155 if (update_status.bits.ACT_HANDLED == 1) { 1156 DC_LOG_DP2("SST Update Payload: ACT handled by downstream."); 1157 result = ACT_SUCCESS; 1158 break; 1159 } 1160 1161 fsleep(5000); 1162 } 1163 1164 if (result == ACT_FAILED) { 1165 DC_LOG_ERROR("SST Update Payload: ACT still not handled after retries, " 1166 "continue on. Something is wrong with the branch."); 1167 } 1168 1169 return (result == ACT_SUCCESS); 1170 } 1171 1172 static void update_mst_stream_alloc_table( 1173 struct dc_link *link, 1174 struct stream_encoder *stream_enc, 1175 struct hpo_dp_stream_encoder *hpo_dp_stream_enc, // TODO: Rename stream_enc to dio_stream_enc? 1176 const struct dc_dp_mst_stream_allocation_table *proposed_table) 1177 { 1178 struct link_mst_stream_allocation work_table[MAX_CONTROLLER_NUM] = { 0 }; 1179 struct link_mst_stream_allocation *dc_alloc; 1180 1181 int i; 1182 int j; 1183 1184 /* if DRM proposed_table has more than one new payload */ 1185 ASSERT(proposed_table->stream_count - 1186 link->mst_stream_alloc_table.stream_count < 2); 1187 1188 /* copy proposed_table to link, add stream encoder */ 1189 for (i = 0; i < proposed_table->stream_count; i++) { 1190 1191 for (j = 0; j < link->mst_stream_alloc_table.stream_count; j++) { 1192 dc_alloc = 1193 &link->mst_stream_alloc_table.stream_allocations[j]; 1194 1195 if (dc_alloc->vcp_id == 1196 proposed_table->stream_allocations[i].vcp_id) { 1197 1198 work_table[i] = *dc_alloc; 1199 work_table[i].slot_count = proposed_table->stream_allocations[i].slot_count; 1200 break; /* exit j loop */ 1201 } 1202 } 1203 1204 /* new vcp_id */ 1205 if (j == link->mst_stream_alloc_table.stream_count) { 1206 work_table[i].vcp_id = 1207 proposed_table->stream_allocations[i].vcp_id; 1208 work_table[i].slot_count = 1209 proposed_table->stream_allocations[i].slot_count; 1210 work_table[i].stream_enc = stream_enc; 1211 work_table[i].hpo_dp_stream_enc = hpo_dp_stream_enc; 1212 } 1213 } 1214 1215 /* update link->mst_stream_alloc_table with work_table */ 1216 link->mst_stream_alloc_table.stream_count = 1217 proposed_table->stream_count; 1218 for (i = 0; i < MAX_CONTROLLER_NUM; i++) 1219 link->mst_stream_alloc_table.stream_allocations[i] = 1220 work_table[i]; 1221 } 1222 1223 static void remove_stream_from_alloc_table( 1224 struct dc_link *link, 1225 struct stream_encoder *dio_stream_enc, 1226 struct hpo_dp_stream_encoder *hpo_dp_stream_enc) 1227 { 1228 int i = 0; 1229 struct link_mst_stream_allocation_table *table = 1230 &link->mst_stream_alloc_table; 1231 1232 if (hpo_dp_stream_enc) { 1233 for (; i < table->stream_count; i++) 1234 if (hpo_dp_stream_enc == table->stream_allocations[i].hpo_dp_stream_enc) 1235 break; 1236 } else { 1237 for (; i < table->stream_count; i++) 1238 if (dio_stream_enc == table->stream_allocations[i].stream_enc) 1239 break; 1240 } 1241 1242 if (i < table->stream_count) { 1243 i++; 1244 for (; i < table->stream_count; i++) 1245 table->stream_allocations[i-1] = table->stream_allocations[i]; 1246 memset(&table->stream_allocations[table->stream_count-1], 0, 1247 sizeof(struct link_mst_stream_allocation)); 1248 table->stream_count--; 1249 } 1250 } 1251 1252 static enum dc_status deallocate_mst_payload_with_temp_drm_wa( 1253 struct pipe_ctx *pipe_ctx) 1254 { 1255 struct dc_stream_state *stream = pipe_ctx->stream; 1256 struct dc_link *link = stream->link; 1257 struct dc_dp_mst_stream_allocation_table proposed_table = {0}; 1258 struct fixed31_32 avg_time_slots_per_mtp = dc_fixpt_from_int(0); 1259 int i; 1260 bool mst_mode = (link->type == dc_connection_mst_branch); 1261 /* adjust for drm changes*/ 1262 const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); 1263 const struct dc_link_settings empty_link_settings = {0}; 1264 DC_LOGGER_INIT(link->ctx->logger); 1265 1266 if (link_hwss->ext.set_throttled_vcp_size) 1267 link_hwss->ext.set_throttled_vcp_size(pipe_ctx, avg_time_slots_per_mtp); 1268 if (link_hwss->ext.set_hblank_min_symbol_width) 1269 link_hwss->ext.set_hblank_min_symbol_width(pipe_ctx, 1270 &empty_link_settings, 1271 avg_time_slots_per_mtp); 1272 1273 if (dm_helpers_dp_mst_write_payload_allocation_table( 1274 stream->ctx, 1275 stream, 1276 &proposed_table, 1277 false)) 1278 update_mst_stream_alloc_table( 1279 link, 1280 pipe_ctx->stream_res.stream_enc, 1281 pipe_ctx->stream_res.hpo_dp_stream_enc, 1282 &proposed_table); 1283 else 1284 DC_LOG_WARNING("Failed to update" 1285 "MST allocation table for" 1286 "pipe idx:%d\n", 1287 pipe_ctx->pipe_idx); 1288 1289 DC_LOG_MST("%s" 1290 "stream_count: %d: ", 1291 __func__, 1292 link->mst_stream_alloc_table.stream_count); 1293 1294 for (i = 0; i < MAX_CONTROLLER_NUM; i++) { 1295 DC_LOG_MST("stream_enc[%d]: %p " 1296 "stream[%d].hpo_dp_stream_enc: %p " 1297 "stream[%d].vcp_id: %d " 1298 "stream[%d].slot_count: %d\n", 1299 i, 1300 (void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc, 1301 i, 1302 (void *) link->mst_stream_alloc_table.stream_allocations[i].hpo_dp_stream_enc, 1303 i, 1304 link->mst_stream_alloc_table.stream_allocations[i].vcp_id, 1305 i, 1306 link->mst_stream_alloc_table.stream_allocations[i].slot_count); 1307 } 1308 1309 if (link_hwss->ext.update_stream_allocation_table == NULL || 1310 link_dp_get_encoding_format(&link->cur_link_settings) == DP_UNKNOWN_ENCODING) { 1311 DC_LOG_DEBUG("Unknown encoding format\n"); 1312 return DC_ERROR_UNEXPECTED; 1313 } 1314 1315 link_hwss->ext.update_stream_allocation_table(link, &pipe_ctx->link_res, 1316 &link->mst_stream_alloc_table); 1317 1318 if (mst_mode) { 1319 dm_helpers_dp_mst_poll_for_allocation_change_trigger( 1320 stream->ctx, 1321 stream); 1322 } 1323 1324 dm_helpers_dp_mst_send_payload_allocation( 1325 stream->ctx, 1326 stream, 1327 false); 1328 1329 return DC_OK; 1330 } 1331 1332 static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx) 1333 { 1334 struct dc_stream_state *stream = pipe_ctx->stream; 1335 struct dc_link *link = stream->link; 1336 struct dc_dp_mst_stream_allocation_table proposed_table = {0}; 1337 struct fixed31_32 avg_time_slots_per_mtp = dc_fixpt_from_int(0); 1338 int i; 1339 bool mst_mode = (link->type == dc_connection_mst_branch); 1340 const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); 1341 const struct dc_link_settings empty_link_settings = {0}; 1342 DC_LOGGER_INIT(link->ctx->logger); 1343 1344 if (link->dc->debug.temp_mst_deallocation_sequence) 1345 return deallocate_mst_payload_with_temp_drm_wa(pipe_ctx); 1346 1347 /* deallocate_mst_payload is called before disable link. When mode or 1348 * disable/enable monitor, new stream is created which is not in link 1349 * stream[] yet. For this, payload is not allocated yet, so de-alloc 1350 * should not done. For new mode set, map_resources will get engine 1351 * for new stream, so stream_enc->id should be validated until here. 1352 */ 1353 1354 /* slot X.Y */ 1355 if (link_hwss->ext.set_throttled_vcp_size) 1356 link_hwss->ext.set_throttled_vcp_size(pipe_ctx, avg_time_slots_per_mtp); 1357 if (link_hwss->ext.set_hblank_min_symbol_width) 1358 link_hwss->ext.set_hblank_min_symbol_width(pipe_ctx, 1359 &empty_link_settings, 1360 avg_time_slots_per_mtp); 1361 1362 if (mst_mode) { 1363 /* when link is in mst mode, reply on mst manager to remove 1364 * payload 1365 */ 1366 if (dm_helpers_dp_mst_write_payload_allocation_table( 1367 stream->ctx, 1368 stream, 1369 &proposed_table, 1370 false)) 1371 update_mst_stream_alloc_table( 1372 link, 1373 pipe_ctx->stream_res.stream_enc, 1374 pipe_ctx->stream_res.hpo_dp_stream_enc, 1375 &proposed_table); 1376 else 1377 DC_LOG_WARNING("Failed to update" 1378 "MST allocation table for" 1379 "pipe idx:%d\n", 1380 pipe_ctx->pipe_idx); 1381 } else { 1382 /* when link is no longer in mst mode (mst hub unplugged), 1383 * remove payload with default dc logic 1384 */ 1385 remove_stream_from_alloc_table(link, pipe_ctx->stream_res.stream_enc, 1386 pipe_ctx->stream_res.hpo_dp_stream_enc); 1387 } 1388 1389 DC_LOG_MST("%s" 1390 "stream_count: %d: ", 1391 __func__, 1392 link->mst_stream_alloc_table.stream_count); 1393 1394 for (i = 0; i < MAX_CONTROLLER_NUM; i++) { 1395 DC_LOG_MST("stream_enc[%d]: %p " 1396 "stream[%d].hpo_dp_stream_enc: %p " 1397 "stream[%d].vcp_id: %d " 1398 "stream[%d].slot_count: %d\n", 1399 i, 1400 (void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc, 1401 i, 1402 (void *) link->mst_stream_alloc_table.stream_allocations[i].hpo_dp_stream_enc, 1403 i, 1404 link->mst_stream_alloc_table.stream_allocations[i].vcp_id, 1405 i, 1406 link->mst_stream_alloc_table.stream_allocations[i].slot_count); 1407 } 1408 1409 /* update mst stream allocation table hardware state */ 1410 if (link_hwss->ext.update_stream_allocation_table == NULL || 1411 link_dp_get_encoding_format(&link->cur_link_settings) == DP_UNKNOWN_ENCODING) { 1412 DC_LOG_DEBUG("Unknown encoding format\n"); 1413 return DC_ERROR_UNEXPECTED; 1414 } 1415 1416 link_hwss->ext.update_stream_allocation_table(link, &pipe_ctx->link_res, 1417 &link->mst_stream_alloc_table); 1418 1419 if (mst_mode) { 1420 dm_helpers_dp_mst_poll_for_allocation_change_trigger( 1421 stream->ctx, 1422 stream); 1423 1424 dm_helpers_dp_mst_send_payload_allocation( 1425 stream->ctx, 1426 stream, 1427 false); 1428 } 1429 1430 return DC_OK; 1431 } 1432 1433 /* convert link_mst_stream_alloc_table to dm dp_mst_stream_alloc_table 1434 * because stream_encoder is not exposed to dm 1435 */ 1436 static enum dc_status allocate_mst_payload(struct pipe_ctx *pipe_ctx) 1437 { 1438 struct dc_stream_state *stream = pipe_ctx->stream; 1439 struct dc_link *link = stream->link; 1440 struct dc_dp_mst_stream_allocation_table proposed_table = {0}; 1441 struct fixed31_32 avg_time_slots_per_mtp; 1442 struct fixed31_32 pbn; 1443 struct fixed31_32 pbn_per_slot; 1444 int i; 1445 enum act_return_status ret; 1446 const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); 1447 DC_LOGGER_INIT(link->ctx->logger); 1448 1449 /* enable_link_dp_mst already check link->enabled_stream_count 1450 * and stream is in link->stream[]. This is called during set mode, 1451 * stream_enc is available. 1452 */ 1453 1454 /* get calculate VC payload for stream: stream_alloc */ 1455 if (dm_helpers_dp_mst_write_payload_allocation_table( 1456 stream->ctx, 1457 stream, 1458 &proposed_table, 1459 true)) 1460 update_mst_stream_alloc_table( 1461 link, 1462 pipe_ctx->stream_res.stream_enc, 1463 pipe_ctx->stream_res.hpo_dp_stream_enc, 1464 &proposed_table); 1465 else 1466 DC_LOG_WARNING("Failed to update" 1467 "MST allocation table for" 1468 "pipe idx:%d\n", 1469 pipe_ctx->pipe_idx); 1470 1471 DC_LOG_MST("%s " 1472 "stream_count: %d: \n ", 1473 __func__, 1474 link->mst_stream_alloc_table.stream_count); 1475 1476 for (i = 0; i < MAX_CONTROLLER_NUM; i++) { 1477 DC_LOG_MST("stream_enc[%d]: %p " 1478 "stream[%d].hpo_dp_stream_enc: %p " 1479 "stream[%d].vcp_id: %d " 1480 "stream[%d].slot_count: %d\n", 1481 i, 1482 (void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc, 1483 i, 1484 (void *) link->mst_stream_alloc_table.stream_allocations[i].hpo_dp_stream_enc, 1485 i, 1486 link->mst_stream_alloc_table.stream_allocations[i].vcp_id, 1487 i, 1488 link->mst_stream_alloc_table.stream_allocations[i].slot_count); 1489 } 1490 1491 ASSERT(proposed_table.stream_count > 0); 1492 1493 /* program DP source TX for payload */ 1494 if (link_hwss->ext.update_stream_allocation_table == NULL || 1495 link_dp_get_encoding_format(&link->cur_link_settings) == DP_UNKNOWN_ENCODING) { 1496 DC_LOG_ERROR("Failure: unknown encoding format\n"); 1497 return DC_ERROR_UNEXPECTED; 1498 } 1499 1500 link_hwss->ext.update_stream_allocation_table(link, 1501 &pipe_ctx->link_res, 1502 &link->mst_stream_alloc_table); 1503 1504 /* send down message */ 1505 ret = dm_helpers_dp_mst_poll_for_allocation_change_trigger( 1506 stream->ctx, 1507 stream); 1508 1509 if (ret != ACT_LINK_LOST) { 1510 dm_helpers_dp_mst_send_payload_allocation( 1511 stream->ctx, 1512 stream, 1513 true); 1514 } 1515 1516 /* slot X.Y for only current stream */ 1517 pbn_per_slot = get_pbn_per_slot(stream); 1518 if (pbn_per_slot.value == 0) { 1519 DC_LOG_ERROR("Failure: pbn_per_slot==0 not allowed. Cannot continue, returning DC_UNSUPPORTED_VALUE.\n"); 1520 return DC_UNSUPPORTED_VALUE; 1521 } 1522 pbn = get_pbn_from_timing(pipe_ctx); 1523 avg_time_slots_per_mtp = dc_fixpt_div(pbn, pbn_per_slot); 1524 1525 log_vcp_x_y(link, avg_time_slots_per_mtp); 1526 1527 if (link_hwss->ext.set_throttled_vcp_size) 1528 link_hwss->ext.set_throttled_vcp_size(pipe_ctx, avg_time_slots_per_mtp); 1529 if (link_hwss->ext.set_hblank_min_symbol_width) 1530 link_hwss->ext.set_hblank_min_symbol_width(pipe_ctx, 1531 &link->cur_link_settings, 1532 avg_time_slots_per_mtp); 1533 1534 return DC_OK; 1535 } 1536 1537 struct fixed31_32 link_calculate_sst_avg_time_slots_per_mtp( 1538 const struct dc_stream_state *stream, 1539 const struct dc_link *link) 1540 { 1541 struct fixed31_32 link_bw_effective = 1542 dc_fixpt_from_int( 1543 dp_link_bandwidth_kbps(link, &link->cur_link_settings)); 1544 struct fixed31_32 timeslot_bw_effective = 1545 dc_fixpt_div_int(link_bw_effective, MAX_MTP_SLOT_COUNT); 1546 struct fixed31_32 timing_bw = 1547 dc_fixpt_from_int( 1548 dc_bandwidth_in_kbps_from_timing(&stream->timing, 1549 dc_link_get_highest_encoding_format(link))); 1550 struct fixed31_32 avg_time_slots_per_mtp = 1551 dc_fixpt_div(timing_bw, timeslot_bw_effective); 1552 1553 return avg_time_slots_per_mtp; 1554 } 1555 1556 1557 static bool write_128b_132b_sst_payload_allocation_table( 1558 const struct dc_stream_state *stream, 1559 struct dc_link *link, 1560 struct link_mst_stream_allocation_table *proposed_table, 1561 bool allocate) 1562 { 1563 const uint8_t vc_id = 1; /// VC ID always 1 for SST 1564 const uint8_t start_time_slot = 0; /// Always start at time slot 0 for SST 1565 bool result = false; 1566 uint8_t req_slot_count = 0; 1567 struct fixed31_32 avg_time_slots_per_mtp = { 0 }; 1568 union payload_table_update_status update_status = { 0 }; 1569 const uint32_t max_retries = 30; 1570 uint32_t retries = 0; 1571 DC_LOGGER_INIT(link->ctx->logger); 1572 1573 if (allocate) { 1574 avg_time_slots_per_mtp = link_calculate_sst_avg_time_slots_per_mtp(stream, link); 1575 req_slot_count = dc_fixpt_ceil(avg_time_slots_per_mtp); 1576 /// Validation should filter out modes that exceed link BW 1577 ASSERT(req_slot_count <= MAX_MTP_SLOT_COUNT); 1578 if (req_slot_count > MAX_MTP_SLOT_COUNT) 1579 return false; 1580 } else { 1581 /// Leave req_slot_count = 0 if allocate is false. 1582 } 1583 1584 proposed_table->stream_count = 1; /// Always 1 stream for SST 1585 proposed_table->stream_allocations[0].slot_count = req_slot_count; 1586 proposed_table->stream_allocations[0].vcp_id = vc_id; 1587 1588 if (link->aux_access_disabled) 1589 return true; 1590 1591 /// Write DPCD 2C0 = 1 to start updating 1592 update_status.bits.VC_PAYLOAD_TABLE_UPDATED = 1; 1593 core_link_write_dpcd( 1594 link, 1595 DP_PAYLOAD_TABLE_UPDATE_STATUS, 1596 &update_status.raw, 1597 1); 1598 1599 /// Program the changes in DPCD 1C0 - 1C2 1600 ASSERT(vc_id == 1); 1601 core_link_write_dpcd( 1602 link, 1603 DP_PAYLOAD_ALLOCATE_SET, 1604 &vc_id, 1605 1); 1606 1607 ASSERT(start_time_slot == 0); 1608 core_link_write_dpcd( 1609 link, 1610 DP_PAYLOAD_ALLOCATE_START_TIME_SLOT, 1611 &start_time_slot, 1612 1); 1613 1614 core_link_write_dpcd( 1615 link, 1616 DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT, 1617 &req_slot_count, 1618 1); 1619 1620 /// Poll till DPCD 2C0 read 1 1621 /// Try for at least 150ms (30 retries, with 5ms delay after each attempt) 1622 1623 while (retries < max_retries) { 1624 if (core_link_read_dpcd( 1625 link, 1626 DP_PAYLOAD_TABLE_UPDATE_STATUS, 1627 &update_status.raw, 1628 1) == DC_OK) { 1629 if (update_status.bits.VC_PAYLOAD_TABLE_UPDATED == 1) { 1630 DC_LOG_DP2("SST Update Payload: downstream payload table updated."); 1631 result = true; 1632 break; 1633 } 1634 } else { 1635 union dpcd_rev dpcdRev; 1636 1637 if (core_link_read_dpcd( 1638 link, 1639 DP_DPCD_REV, 1640 &dpcdRev.raw, 1641 1) != DC_OK) { 1642 DC_LOG_ERROR("SST Update Payload: Unable to read DPCD revision " 1643 "of sink while polling payload table " 1644 "updated status bit."); 1645 break; 1646 } 1647 } 1648 retries++; 1649 fsleep(5000); 1650 } 1651 1652 if (!result && retries == max_retries) { 1653 DC_LOG_ERROR("SST Update Payload: Payload table not updated after retries, " 1654 "continue on. Something is wrong with the branch."); 1655 // TODO - DP2.0 Payload: Read and log the payload table from downstream branch 1656 } 1657 1658 return result; 1659 } 1660 1661 /* 1662 * Payload allocation/deallocation for SST introduced in DP2.0 1663 */ 1664 static enum dc_status update_sst_payload(struct pipe_ctx *pipe_ctx, 1665 bool allocate) 1666 { 1667 struct dc_stream_state *stream = pipe_ctx->stream; 1668 struct dc_link *link = stream->link; 1669 struct link_mst_stream_allocation_table proposed_table = {0}; 1670 struct fixed31_32 avg_time_slots_per_mtp; 1671 const struct dc_link_settings empty_link_settings = {0}; 1672 const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); 1673 DC_LOGGER_INIT(link->ctx->logger); 1674 1675 /* slot X.Y for SST payload deallocate */ 1676 if (!allocate) { 1677 avg_time_slots_per_mtp = dc_fixpt_from_int(0); 1678 1679 log_vcp_x_y(link, avg_time_slots_per_mtp); 1680 1681 if (link_hwss->ext.set_throttled_vcp_size) 1682 link_hwss->ext.set_throttled_vcp_size(pipe_ctx, 1683 avg_time_slots_per_mtp); 1684 if (link_hwss->ext.set_hblank_min_symbol_width) 1685 link_hwss->ext.set_hblank_min_symbol_width(pipe_ctx, 1686 &empty_link_settings, 1687 avg_time_slots_per_mtp); 1688 } 1689 1690 /* calculate VC payload and update branch with new payload allocation table*/ 1691 if (!write_128b_132b_sst_payload_allocation_table( 1692 stream, 1693 link, 1694 &proposed_table, 1695 allocate)) { 1696 DC_LOG_ERROR("SST Update Payload: Failed to update " 1697 "allocation table for " 1698 "pipe idx: %d\n", 1699 pipe_ctx->pipe_idx); 1700 return DC_FAIL_DP_PAYLOAD_ALLOCATION; 1701 } 1702 1703 proposed_table.stream_allocations[0].hpo_dp_stream_enc = pipe_ctx->stream_res.hpo_dp_stream_enc; 1704 1705 ASSERT(proposed_table.stream_count == 1); 1706 1707 //TODO - DP2.0 Logging: Instead of hpo_dp_stream_enc pointer, log instance id 1708 DC_LOG_DP2("SST Update Payload: hpo_dp_stream_enc: %p " 1709 "vcp_id: %d " 1710 "slot_count: %d\n", 1711 (void *) proposed_table.stream_allocations[0].hpo_dp_stream_enc, 1712 proposed_table.stream_allocations[0].vcp_id, 1713 proposed_table.stream_allocations[0].slot_count); 1714 1715 /* program DP source TX for payload */ 1716 link_hwss->ext.update_stream_allocation_table(link, &pipe_ctx->link_res, 1717 &proposed_table); 1718 1719 /* poll for ACT handled */ 1720 if (!poll_for_allocation_change_trigger(link)) { 1721 // Failures will result in blackscreen and errors logged 1722 BREAK_TO_DEBUGGER(); 1723 } 1724 1725 /* slot X.Y for SST payload allocate */ 1726 if (allocate && link_dp_get_encoding_format(&link->cur_link_settings) == 1727 DP_128b_132b_ENCODING) { 1728 avg_time_slots_per_mtp = link_calculate_sst_avg_time_slots_per_mtp(stream, link); 1729 1730 log_vcp_x_y(link, avg_time_slots_per_mtp); 1731 1732 if (link_hwss->ext.set_throttled_vcp_size) 1733 link_hwss->ext.set_throttled_vcp_size(pipe_ctx, 1734 avg_time_slots_per_mtp); 1735 if (link_hwss->ext.set_hblank_min_symbol_width) 1736 link_hwss->ext.set_hblank_min_symbol_width(pipe_ctx, 1737 &link->cur_link_settings, 1738 avg_time_slots_per_mtp); 1739 } 1740 1741 /* Always return DC_OK. 1742 * If part of sequence fails, log failure(s) and show blackscreen 1743 */ 1744 return DC_OK; 1745 } 1746 1747 enum dc_status link_reduce_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t bw_in_kbps) 1748 { 1749 struct dc_stream_state *stream = pipe_ctx->stream; 1750 struct dc_link *link = stream->link; 1751 struct fixed31_32 avg_time_slots_per_mtp; 1752 struct fixed31_32 pbn; 1753 struct fixed31_32 pbn_per_slot; 1754 struct dc_dp_mst_stream_allocation_table proposed_table = {0}; 1755 uint8_t i; 1756 const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); 1757 DC_LOGGER_INIT(link->ctx->logger); 1758 1759 /* decrease throttled vcp size */ 1760 pbn_per_slot = get_pbn_per_slot(stream); 1761 pbn = get_pbn_from_bw_in_kbps(bw_in_kbps); 1762 avg_time_slots_per_mtp = dc_fixpt_div(pbn, pbn_per_slot); 1763 1764 if (link_hwss->ext.set_throttled_vcp_size) 1765 link_hwss->ext.set_throttled_vcp_size(pipe_ctx, avg_time_slots_per_mtp); 1766 if (link_hwss->ext.set_hblank_min_symbol_width) 1767 link_hwss->ext.set_hblank_min_symbol_width(pipe_ctx, 1768 &link->cur_link_settings, 1769 avg_time_slots_per_mtp); 1770 1771 /* send ALLOCATE_PAYLOAD sideband message with updated pbn */ 1772 dm_helpers_dp_mst_send_payload_allocation( 1773 stream->ctx, 1774 stream, 1775 true); 1776 1777 /* notify immediate branch device table update */ 1778 if (dm_helpers_dp_mst_write_payload_allocation_table( 1779 stream->ctx, 1780 stream, 1781 &proposed_table, 1782 true)) { 1783 /* update mst stream allocation table software state */ 1784 update_mst_stream_alloc_table( 1785 link, 1786 pipe_ctx->stream_res.stream_enc, 1787 pipe_ctx->stream_res.hpo_dp_stream_enc, 1788 &proposed_table); 1789 } else { 1790 DC_LOG_WARNING("Failed to update" 1791 "MST allocation table for" 1792 "pipe idx:%d\n", 1793 pipe_ctx->pipe_idx); 1794 } 1795 1796 DC_LOG_MST("%s " 1797 "stream_count: %d: \n ", 1798 __func__, 1799 link->mst_stream_alloc_table.stream_count); 1800 1801 for (i = 0; i < MAX_CONTROLLER_NUM; i++) { 1802 DC_LOG_MST("stream_enc[%d]: %p " 1803 "stream[%d].hpo_dp_stream_enc: %p " 1804 "stream[%d].vcp_id: %d " 1805 "stream[%d].slot_count: %d\n", 1806 i, 1807 (void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc, 1808 i, 1809 (void *) link->mst_stream_alloc_table.stream_allocations[i].hpo_dp_stream_enc, 1810 i, 1811 link->mst_stream_alloc_table.stream_allocations[i].vcp_id, 1812 i, 1813 link->mst_stream_alloc_table.stream_allocations[i].slot_count); 1814 } 1815 1816 ASSERT(proposed_table.stream_count > 0); 1817 1818 /* update mst stream allocation table hardware state */ 1819 if (link_hwss->ext.update_stream_allocation_table == NULL || 1820 link_dp_get_encoding_format(&link->cur_link_settings) == DP_UNKNOWN_ENCODING) { 1821 DC_LOG_ERROR("Failure: unknown encoding format\n"); 1822 return DC_ERROR_UNEXPECTED; 1823 } 1824 1825 link_hwss->ext.update_stream_allocation_table(link, &pipe_ctx->link_res, 1826 &link->mst_stream_alloc_table); 1827 1828 /* poll for immediate branch device ACT handled */ 1829 dm_helpers_dp_mst_poll_for_allocation_change_trigger( 1830 stream->ctx, 1831 stream); 1832 1833 return DC_OK; 1834 } 1835 1836 enum dc_status link_increase_mst_payload(struct pipe_ctx *pipe_ctx, uint32_t bw_in_kbps) 1837 { 1838 struct dc_stream_state *stream = pipe_ctx->stream; 1839 struct dc_link *link = stream->link; 1840 struct fixed31_32 avg_time_slots_per_mtp; 1841 struct fixed31_32 pbn; 1842 struct fixed31_32 pbn_per_slot; 1843 struct dc_dp_mst_stream_allocation_table proposed_table = {0}; 1844 uint8_t i; 1845 enum act_return_status ret; 1846 const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); 1847 DC_LOGGER_INIT(link->ctx->logger); 1848 1849 /* notify immediate branch device table update */ 1850 if (dm_helpers_dp_mst_write_payload_allocation_table( 1851 stream->ctx, 1852 stream, 1853 &proposed_table, 1854 true)) { 1855 /* update mst stream allocation table software state */ 1856 update_mst_stream_alloc_table( 1857 link, 1858 pipe_ctx->stream_res.stream_enc, 1859 pipe_ctx->stream_res.hpo_dp_stream_enc, 1860 &proposed_table); 1861 } 1862 1863 DC_LOG_MST("%s " 1864 "stream_count: %d: \n ", 1865 __func__, 1866 link->mst_stream_alloc_table.stream_count); 1867 1868 for (i = 0; i < MAX_CONTROLLER_NUM; i++) { 1869 DC_LOG_MST("stream_enc[%d]: %p " 1870 "stream[%d].hpo_dp_stream_enc: %p " 1871 "stream[%d].vcp_id: %d " 1872 "stream[%d].slot_count: %d\n", 1873 i, 1874 (void *) link->mst_stream_alloc_table.stream_allocations[i].stream_enc, 1875 i, 1876 (void *) link->mst_stream_alloc_table.stream_allocations[i].hpo_dp_stream_enc, 1877 i, 1878 link->mst_stream_alloc_table.stream_allocations[i].vcp_id, 1879 i, 1880 link->mst_stream_alloc_table.stream_allocations[i].slot_count); 1881 } 1882 1883 ASSERT(proposed_table.stream_count > 0); 1884 1885 /* update mst stream allocation table hardware state */ 1886 if (link_hwss->ext.update_stream_allocation_table == NULL || 1887 link_dp_get_encoding_format(&link->cur_link_settings) == DP_UNKNOWN_ENCODING) { 1888 DC_LOG_ERROR("Failure: unknown encoding format\n"); 1889 return DC_ERROR_UNEXPECTED; 1890 } 1891 1892 link_hwss->ext.update_stream_allocation_table(link, &pipe_ctx->link_res, 1893 &link->mst_stream_alloc_table); 1894 1895 /* poll for immediate branch device ACT handled */ 1896 ret = dm_helpers_dp_mst_poll_for_allocation_change_trigger( 1897 stream->ctx, 1898 stream); 1899 1900 if (ret != ACT_LINK_LOST) { 1901 /* send ALLOCATE_PAYLOAD sideband message with updated pbn */ 1902 dm_helpers_dp_mst_send_payload_allocation( 1903 stream->ctx, 1904 stream, 1905 true); 1906 } 1907 1908 /* increase throttled vcp size */ 1909 pbn = get_pbn_from_bw_in_kbps(bw_in_kbps); 1910 pbn_per_slot = get_pbn_per_slot(stream); 1911 avg_time_slots_per_mtp = dc_fixpt_div(pbn, pbn_per_slot); 1912 1913 if (link_hwss->ext.set_throttled_vcp_size) 1914 link_hwss->ext.set_throttled_vcp_size(pipe_ctx, avg_time_slots_per_mtp); 1915 if (link_hwss->ext.set_hblank_min_symbol_width) 1916 link_hwss->ext.set_hblank_min_symbol_width(pipe_ctx, 1917 &link->cur_link_settings, 1918 avg_time_slots_per_mtp); 1919 1920 return DC_OK; 1921 } 1922 1923 static void disable_link_dp(struct dc_link *link, 1924 const struct link_resource *link_res, 1925 enum signal_type signal) 1926 { 1927 struct dc_link_settings link_settings = link->cur_link_settings; 1928 1929 if (signal == SIGNAL_TYPE_DISPLAY_PORT_MST && 1930 link->mst_stream_alloc_table.stream_count > 0) 1931 /* disable MST link only when last vc payload is deallocated */ 1932 return; 1933 1934 dp_disable_link_phy(link, link_res, signal); 1935 1936 if (link->connector_signal == SIGNAL_TYPE_EDP) { 1937 if (!link->skip_implict_edp_power_control) 1938 link->dc->hwss.edp_power_control(link, false); 1939 } 1940 1941 if (signal == SIGNAL_TYPE_DISPLAY_PORT_MST) 1942 /* set the sink to SST mode after disabling the link */ 1943 enable_mst_on_sink(link, false); 1944 1945 if (link_dp_get_encoding_format(&link_settings) == 1946 DP_8b_10b_ENCODING) { 1947 dp_set_fec_enable(link, false); 1948 dp_set_fec_ready(link, link_res, false); 1949 } 1950 } 1951 1952 static void disable_link(struct dc_link *link, 1953 const struct link_resource *link_res, 1954 enum signal_type signal) 1955 { 1956 if (dc_is_dp_signal(signal)) { 1957 disable_link_dp(link, link_res, signal); 1958 } else if (signal != SIGNAL_TYPE_VIRTUAL) { 1959 link->dc->hwss.disable_link_output(link, link_res, signal); 1960 } 1961 1962 if (signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { 1963 /* MST disable link only when no stream use the link */ 1964 if (link->mst_stream_alloc_table.stream_count <= 0) 1965 link->link_status.link_active = false; 1966 } else { 1967 link->link_status.link_active = false; 1968 } 1969 } 1970 1971 static void enable_link_hdmi(struct pipe_ctx *pipe_ctx) 1972 { 1973 struct dc_stream_state *stream = pipe_ctx->stream; 1974 struct dc_link *link = stream->link; 1975 enum dc_color_depth display_color_depth; 1976 enum engine_id eng_id; 1977 struct ext_hdmi_settings settings = {0}; 1978 bool is_over_340mhz = false; 1979 bool is_vga_mode = (stream->timing.h_addressable == 640) 1980 && (stream->timing.v_addressable == 480); 1981 struct dc *dc = pipe_ctx->stream->ctx->dc; 1982 const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); 1983 1984 if (stream->phy_pix_clk == 0) 1985 stream->phy_pix_clk = stream->timing.pix_clk_100hz / 10; 1986 if (stream->phy_pix_clk > 340000) 1987 is_over_340mhz = true; 1988 1989 if (dc_is_hdmi_signal(pipe_ctx->stream->signal)) { 1990 unsigned short masked_chip_caps = pipe_ctx->stream->link->chip_caps & 1991 EXT_DISPLAY_PATH_CAPS__EXT_CHIP_MASK; 1992 if (masked_chip_caps == EXT_DISPLAY_PATH_CAPS__HDMI20_TISN65DP159RSBT) { 1993 /* DP159, Retimer settings */ 1994 eng_id = pipe_ctx->stream_res.stream_enc->id; 1995 1996 if (get_ext_hdmi_settings(pipe_ctx, eng_id, &settings)) { 1997 write_i2c_retimer_setting(pipe_ctx, 1998 is_vga_mode, is_over_340mhz, &settings); 1999 } else { 2000 write_i2c_default_retimer_setting(pipe_ctx, 2001 is_vga_mode, is_over_340mhz); 2002 } 2003 } else if (masked_chip_caps == EXT_DISPLAY_PATH_CAPS__HDMI20_PI3EQX1204) { 2004 /* PI3EQX1204, Redriver settings */ 2005 write_i2c_redriver_setting(pipe_ctx, is_over_340mhz); 2006 } 2007 } 2008 2009 if (dc_is_hdmi_signal(pipe_ctx->stream->signal)) 2010 write_scdc_data( 2011 stream->link->ddc, 2012 stream->phy_pix_clk, 2013 stream->timing.flags.LTE_340MCSC_SCRAMBLE); 2014 2015 memset(&stream->link->cur_link_settings, 0, 2016 sizeof(struct dc_link_settings)); 2017 2018 display_color_depth = stream->timing.display_color_depth; 2019 if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR422) 2020 display_color_depth = COLOR_DEPTH_888; 2021 2022 /* We need to enable stream encoder for TMDS first to apply 1/4 TMDS 2023 * character clock in case that beyond 340MHz. 2024 */ 2025 if (dc_is_hdmi_tmds_signal(pipe_ctx->stream->signal)) 2026 link_hwss->setup_stream_encoder(pipe_ctx); 2027 2028 dc->hwss.enable_tmds_link_output( 2029 link, 2030 &pipe_ctx->link_res, 2031 pipe_ctx->stream->signal, 2032 pipe_ctx->clock_source->id, 2033 display_color_depth, 2034 stream->phy_pix_clk); 2035 2036 if (dc_is_hdmi_signal(pipe_ctx->stream->signal)) 2037 read_scdc_data(link->ddc); 2038 } 2039 2040 static enum dc_status enable_link_dp(struct dc_state *state, 2041 struct pipe_ctx *pipe_ctx) 2042 { 2043 struct dc_stream_state *stream = pipe_ctx->stream; 2044 enum dc_status status; 2045 bool skip_video_pattern; 2046 struct dc_link *link = stream->link; 2047 const struct dc_link_settings *link_settings = 2048 &pipe_ctx->link_config.dp_link_settings; 2049 bool fec_enable; 2050 int i; 2051 bool apply_seamless_boot_optimization = false; 2052 uint32_t bl_oled_enable_delay = 50; // in ms 2053 uint32_t post_oui_delay = 30; // 30ms 2054 /* Reduce link bandwidth between failed link training attempts. */ 2055 bool do_fallback = false; 2056 int lt_attempts = LINK_TRAINING_ATTEMPTS; 2057 2058 // Increase retry count if attempting DP1.x on FIXED_VS link 2059 if ((link->chip_caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN) && 2060 link_dp_get_encoding_format(link_settings) == DP_8b_10b_ENCODING) 2061 lt_attempts = 10; 2062 2063 // check for seamless boot 2064 for (i = 0; i < state->stream_count; i++) { 2065 if (state->streams[i]->apply_seamless_boot_optimization) { 2066 apply_seamless_boot_optimization = true; 2067 break; 2068 } 2069 } 2070 2071 /* 2072 * If the link is DP-over-USB4 do the following: 2073 * - Train with fallback when enabling DPIA link. Conventional links are 2074 * trained with fallback during sink detection. 2075 * - Allocate only what the stream needs for bw in Gbps. Inform the CM 2076 * in case stream needs more or less bw from what has been allocated 2077 * earlier at plug time. 2078 */ 2079 if (link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) { 2080 do_fallback = true; 2081 } 2082 2083 /* 2084 * Temporary w/a to get DP2.0 link rates to work with SST. 2085 * TODO DP2.0 - Workaround: Remove w/a if and when the issue is resolved. 2086 */ 2087 if (link_dp_get_encoding_format(link_settings) == DP_128b_132b_ENCODING && 2088 pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT && 2089 link->dc->debug.set_mst_en_for_sst) { 2090 enable_mst_on_sink(link, true); 2091 } 2092 if (pipe_ctx->stream->signal == SIGNAL_TYPE_EDP) { 2093 /*in case it is not on*/ 2094 if (!link->dc->config.edp_no_power_sequencing) 2095 link->dc->hwss.edp_power_control(link, true); 2096 link->dc->hwss.edp_wait_for_hpd_ready(link, true); 2097 } 2098 2099 if (link_dp_get_encoding_format(link_settings) == DP_128b_132b_ENCODING) { 2100 /* TODO - DP2.0 HW: calculate 32 symbol clock for HPO encoder */ 2101 } else { 2102 pipe_ctx->stream_res.pix_clk_params.requested_sym_clk = 2103 link_settings->link_rate * LINK_RATE_REF_FREQ_IN_KHZ; 2104 if (state->clk_mgr && !apply_seamless_boot_optimization) 2105 state->clk_mgr->funcs->update_clocks(state->clk_mgr, 2106 state, false); 2107 } 2108 2109 // during mode switch we do DP_SET_POWER off then on, and OUI is lost 2110 dpcd_set_source_specific_data(link); 2111 if (link->dpcd_sink_ext_caps.raw != 0) { 2112 post_oui_delay += link->panel_config.pps.extra_post_OUI_ms; 2113 msleep(post_oui_delay); 2114 } 2115 2116 // similarly, mode switch can cause loss of cable ID 2117 dpcd_write_cable_id_to_dprx(link); 2118 2119 skip_video_pattern = true; 2120 2121 if (link_settings->link_rate == LINK_RATE_LOW) 2122 skip_video_pattern = false; 2123 2124 if (perform_link_training_with_retries(link_settings, 2125 skip_video_pattern, 2126 lt_attempts, 2127 pipe_ctx, 2128 pipe_ctx->stream->signal, 2129 do_fallback)) { 2130 status = DC_OK; 2131 } else { 2132 status = DC_FAIL_DP_LINK_TRAINING; 2133 } 2134 2135 if (link->preferred_training_settings.fec_enable) 2136 fec_enable = *link->preferred_training_settings.fec_enable; 2137 else 2138 fec_enable = true; 2139 2140 if (link_dp_get_encoding_format(link_settings) == DP_8b_10b_ENCODING) 2141 dp_set_fec_enable(link, fec_enable); 2142 2143 // during mode set we do DP_SET_POWER off then on, aux writes are lost 2144 if (link->dpcd_sink_ext_caps.bits.oled == 1 || 2145 link->dpcd_sink_ext_caps.bits.sdr_aux_backlight_control == 1 || 2146 link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 1) { 2147 set_default_brightness_aux(link); 2148 if (link->dpcd_sink_ext_caps.bits.oled == 1) 2149 msleep(bl_oled_enable_delay); 2150 edp_backlight_enable_aux(link, true); 2151 } 2152 2153 return status; 2154 } 2155 2156 static enum dc_status enable_link_edp( 2157 struct dc_state *state, 2158 struct pipe_ctx *pipe_ctx) 2159 { 2160 return enable_link_dp(state, pipe_ctx); 2161 } 2162 2163 static void enable_link_lvds(struct pipe_ctx *pipe_ctx) 2164 { 2165 struct dc_stream_state *stream = pipe_ctx->stream; 2166 struct dc_link *link = stream->link; 2167 struct dc *dc = stream->ctx->dc; 2168 2169 if (stream->phy_pix_clk == 0) 2170 stream->phy_pix_clk = stream->timing.pix_clk_100hz / 10; 2171 2172 memset(&stream->link->cur_link_settings, 0, 2173 sizeof(struct dc_link_settings)); 2174 dc->hwss.enable_lvds_link_output( 2175 link, 2176 &pipe_ctx->link_res, 2177 pipe_ctx->clock_source->id, 2178 stream->phy_pix_clk); 2179 2180 } 2181 2182 static enum dc_status enable_link_dp_mst( 2183 struct dc_state *state, 2184 struct pipe_ctx *pipe_ctx) 2185 { 2186 struct dc_link *link = pipe_ctx->stream->link; 2187 unsigned char mstm_cntl; 2188 2189 /* sink signal type after MST branch is MST. Multiple MST sinks 2190 * share one link. Link DP PHY is enable or training only once. 2191 */ 2192 if (link->link_status.link_active) 2193 return DC_OK; 2194 2195 /* clear payload table */ 2196 core_link_read_dpcd(link, DP_MSTM_CTRL, &mstm_cntl, 1); 2197 if (mstm_cntl & DP_MST_EN) 2198 dm_helpers_dp_mst_clear_payload_allocation_table(link->ctx, link); 2199 2200 /* to make sure the pending down rep can be processed 2201 * before enabling the link 2202 */ 2203 dm_helpers_dp_mst_poll_pending_down_reply(link->ctx, link); 2204 2205 /* set the sink to MST mode before enabling the link */ 2206 enable_mst_on_sink(link, true); 2207 2208 return enable_link_dp(state, pipe_ctx); 2209 } 2210 2211 static enum dc_status enable_link( 2212 struct dc_state *state, 2213 struct pipe_ctx *pipe_ctx) 2214 { 2215 enum dc_status status = DC_ERROR_UNEXPECTED; 2216 struct dc_stream_state *stream = pipe_ctx->stream; 2217 struct dc_link *link = stream->link; 2218 2219 /* There's some scenarios where driver is unloaded with display 2220 * still enabled. When driver is reloaded, it may cause a display 2221 * to not light up if there is a mismatch between old and new 2222 * link settings. Need to call disable first before enabling at 2223 * new link settings. 2224 */ 2225 if (link->link_status.link_active) 2226 disable_link(link, &pipe_ctx->link_res, pipe_ctx->stream->signal); 2227 2228 switch (pipe_ctx->stream->signal) { 2229 case SIGNAL_TYPE_DISPLAY_PORT: 2230 status = enable_link_dp(state, pipe_ctx); 2231 break; 2232 case SIGNAL_TYPE_EDP: 2233 status = enable_link_edp(state, pipe_ctx); 2234 break; 2235 case SIGNAL_TYPE_DISPLAY_PORT_MST: 2236 status = enable_link_dp_mst(state, pipe_ctx); 2237 msleep(200); 2238 break; 2239 case SIGNAL_TYPE_DVI_SINGLE_LINK: 2240 case SIGNAL_TYPE_DVI_DUAL_LINK: 2241 case SIGNAL_TYPE_HDMI_TYPE_A: 2242 enable_link_hdmi(pipe_ctx); 2243 status = DC_OK; 2244 break; 2245 case SIGNAL_TYPE_LVDS: 2246 enable_link_lvds(pipe_ctx); 2247 status = DC_OK; 2248 break; 2249 case SIGNAL_TYPE_VIRTUAL: 2250 status = DC_OK; 2251 break; 2252 default: 2253 break; 2254 } 2255 2256 if (status == DC_OK) { 2257 pipe_ctx->stream->link->link_status.link_active = true; 2258 } 2259 2260 return status; 2261 } 2262 2263 void link_set_dpms_off(struct pipe_ctx *pipe_ctx) 2264 { 2265 struct dc *dc = pipe_ctx->stream->ctx->dc; 2266 struct dc_stream_state *stream = pipe_ctx->stream; 2267 struct dc_link *link = stream->sink->link; 2268 struct vpg *vpg = pipe_ctx->stream_res.stream_enc->vpg; 2269 2270 ASSERT(is_master_pipe_for_link(link, pipe_ctx)); 2271 2272 if (dp_is_128b_132b_signal(pipe_ctx)) 2273 vpg = pipe_ctx->stream_res.hpo_dp_stream_enc->vpg; 2274 2275 DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger); 2276 2277 if (pipe_ctx->stream->sink) { 2278 if (pipe_ctx->stream->sink->sink_signal != SIGNAL_TYPE_VIRTUAL && 2279 pipe_ctx->stream->sink->sink_signal != SIGNAL_TYPE_NONE) { 2280 DC_LOG_DC("%s pipe_ctx dispname=%s signal=%x\n", __func__, 2281 pipe_ctx->stream->sink->edid_caps.display_name, 2282 pipe_ctx->stream->signal); 2283 } 2284 } 2285 2286 if (dc_is_virtual_signal(pipe_ctx->stream->signal)) 2287 return; 2288 2289 if (!pipe_ctx->stream->sink->edid_caps.panel_patch.skip_avmute) { 2290 if (dc_is_hdmi_signal(pipe_ctx->stream->signal)) 2291 set_avmute(pipe_ctx, true); 2292 } 2293 2294 dc->hwss.disable_audio_stream(pipe_ctx); 2295 2296 update_psp_stream_config(pipe_ctx, true); 2297 dc->hwss.blank_stream(pipe_ctx); 2298 2299 if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) 2300 deallocate_mst_payload(pipe_ctx); 2301 else if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT && 2302 dp_is_128b_132b_signal(pipe_ctx)) 2303 update_sst_payload(pipe_ctx, false); 2304 2305 if (dc_is_hdmi_signal(pipe_ctx->stream->signal)) { 2306 struct ext_hdmi_settings settings = {0}; 2307 enum engine_id eng_id = pipe_ctx->stream_res.stream_enc->id; 2308 2309 unsigned short masked_chip_caps = link->chip_caps & 2310 EXT_DISPLAY_PATH_CAPS__EXT_CHIP_MASK; 2311 //Need to inform that sink is going to use legacy HDMI mode. 2312 write_scdc_data( 2313 link->ddc, 2314 165000,//vbios only handles 165Mhz. 2315 false); 2316 if (masked_chip_caps == EXT_DISPLAY_PATH_CAPS__HDMI20_TISN65DP159RSBT) { 2317 /* DP159, Retimer settings */ 2318 if (get_ext_hdmi_settings(pipe_ctx, eng_id, &settings)) 2319 write_i2c_retimer_setting(pipe_ctx, 2320 false, false, &settings); 2321 else 2322 write_i2c_default_retimer_setting(pipe_ctx, 2323 false, false); 2324 } else if (masked_chip_caps == EXT_DISPLAY_PATH_CAPS__HDMI20_PI3EQX1204) { 2325 /* PI3EQX1204, Redriver settings */ 2326 write_i2c_redriver_setting(pipe_ctx, false); 2327 } 2328 } 2329 2330 if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT && 2331 !dp_is_128b_132b_signal(pipe_ctx)) { 2332 2333 /* In DP1.x SST mode, our encoder will go to TPS1 2334 * when link is on but stream is off. 2335 * Disabling link before stream will avoid exposing TPS1 pattern 2336 * during the disable sequence as it will confuse some receivers 2337 * state machine. 2338 * In DP2 or MST mode, our encoder will stay video active 2339 */ 2340 disable_link(pipe_ctx->stream->link, &pipe_ctx->link_res, pipe_ctx->stream->signal); 2341 dc->hwss.disable_stream(pipe_ctx); 2342 } else { 2343 dc->hwss.disable_stream(pipe_ctx); 2344 disable_link(pipe_ctx->stream->link, &pipe_ctx->link_res, pipe_ctx->stream->signal); 2345 } 2346 2347 if (pipe_ctx->stream->timing.flags.DSC) { 2348 if (dc_is_dp_signal(pipe_ctx->stream->signal)) 2349 link_set_dsc_enable(pipe_ctx, false); 2350 } 2351 if (dp_is_128b_132b_signal(pipe_ctx)) { 2352 if (pipe_ctx->stream_res.tg->funcs->set_out_mux) 2353 pipe_ctx->stream_res.tg->funcs->set_out_mux(pipe_ctx->stream_res.tg, OUT_MUX_DIO); 2354 } 2355 2356 if (vpg && vpg->funcs->vpg_powerdown) 2357 vpg->funcs->vpg_powerdown(vpg); 2358 } 2359 2360 void link_set_dpms_on( 2361 struct dc_state *state, 2362 struct pipe_ctx *pipe_ctx) 2363 { 2364 struct dc *dc = pipe_ctx->stream->ctx->dc; 2365 struct dc_stream_state *stream = pipe_ctx->stream; 2366 struct dc_link *link = stream->sink->link; 2367 enum dc_status status; 2368 struct link_encoder *link_enc; 2369 enum otg_out_mux_dest otg_out_dest = OUT_MUX_DIO; 2370 struct vpg *vpg = pipe_ctx->stream_res.stream_enc->vpg; 2371 const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); 2372 bool apply_edp_fast_boot_optimization = 2373 pipe_ctx->stream->apply_edp_fast_boot_optimization; 2374 2375 ASSERT(is_master_pipe_for_link(link, pipe_ctx)); 2376 2377 if (dp_is_128b_132b_signal(pipe_ctx)) 2378 vpg = pipe_ctx->stream_res.hpo_dp_stream_enc->vpg; 2379 2380 DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger); 2381 2382 if (pipe_ctx->stream->sink) { 2383 if (pipe_ctx->stream->sink->sink_signal != SIGNAL_TYPE_VIRTUAL && 2384 pipe_ctx->stream->sink->sink_signal != SIGNAL_TYPE_NONE) { 2385 DC_LOG_DC("%s pipe_ctx dispname=%s signal=%x\n", __func__, 2386 pipe_ctx->stream->sink->edid_caps.display_name, 2387 pipe_ctx->stream->signal); 2388 } 2389 } 2390 2391 if (dc_is_virtual_signal(pipe_ctx->stream->signal)) 2392 return; 2393 2394 link_enc = link_enc_cfg_get_link_enc(link); 2395 ASSERT(link_enc); 2396 2397 if (!dc_is_virtual_signal(pipe_ctx->stream->signal) 2398 && !dp_is_128b_132b_signal(pipe_ctx)) { 2399 if (link_enc) 2400 link_enc->funcs->setup( 2401 link_enc, 2402 pipe_ctx->stream->signal); 2403 } 2404 2405 pipe_ctx->stream->link->link_state_valid = true; 2406 2407 if (pipe_ctx->stream_res.tg->funcs->set_out_mux) { 2408 if (dp_is_128b_132b_signal(pipe_ctx)) 2409 otg_out_dest = OUT_MUX_HPO_DP; 2410 else 2411 otg_out_dest = OUT_MUX_DIO; 2412 pipe_ctx->stream_res.tg->funcs->set_out_mux(pipe_ctx->stream_res.tg, otg_out_dest); 2413 } 2414 2415 link_hwss->setup_stream_attribute(pipe_ctx); 2416 2417 pipe_ctx->stream->apply_edp_fast_boot_optimization = false; 2418 2419 // Enable VPG before building infoframe 2420 if (vpg && vpg->funcs->vpg_poweron) 2421 vpg->funcs->vpg_poweron(vpg); 2422 2423 resource_build_info_frame(pipe_ctx); 2424 dc->hwss.update_info_frame(pipe_ctx); 2425 2426 if (dc_is_dp_signal(pipe_ctx->stream->signal)) 2427 dp_trace_source_sequence(link, DPCD_SOURCE_SEQ_AFTER_UPDATE_INFO_FRAME); 2428 2429 /* Do not touch link on seamless boot optimization. */ 2430 if (pipe_ctx->stream->apply_seamless_boot_optimization) { 2431 pipe_ctx->stream->dpms_off = false; 2432 2433 /* Still enable stream features & audio on seamless boot for DP external displays */ 2434 if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT) { 2435 enable_stream_features(pipe_ctx); 2436 dc->hwss.enable_audio_stream(pipe_ctx); 2437 } 2438 2439 update_psp_stream_config(pipe_ctx, false); 2440 return; 2441 } 2442 2443 /* eDP lit up by bios already, no need to enable again. */ 2444 if (pipe_ctx->stream->signal == SIGNAL_TYPE_EDP && 2445 apply_edp_fast_boot_optimization && 2446 !pipe_ctx->stream->timing.flags.DSC && 2447 !pipe_ctx->next_odm_pipe) { 2448 pipe_ctx->stream->dpms_off = false; 2449 update_psp_stream_config(pipe_ctx, false); 2450 return; 2451 } 2452 2453 if (pipe_ctx->stream->dpms_off) 2454 return; 2455 2456 /* Have to setup DSC before DIG FE and BE are connected (which happens before the 2457 * link training). This is to make sure the bandwidth sent to DIG BE won't be 2458 * bigger than what the link and/or DIG BE can handle. VBID[6]/CompressedStream_flag 2459 * will be automatically set at a later time when the video is enabled 2460 * (DP_VID_STREAM_EN = 1). 2461 */ 2462 if (pipe_ctx->stream->timing.flags.DSC) { 2463 if (dc_is_dp_signal(pipe_ctx->stream->signal) || 2464 dc_is_virtual_signal(pipe_ctx->stream->signal)) 2465 link_set_dsc_enable(pipe_ctx, true); 2466 2467 } 2468 2469 status = enable_link(state, pipe_ctx); 2470 2471 if (status != DC_OK) { 2472 DC_LOG_WARNING("enabling link %u failed: %d\n", 2473 pipe_ctx->stream->link->link_index, 2474 status); 2475 2476 /* Abort stream enable *unless* the failure was due to 2477 * DP link training - some DP monitors will recover and 2478 * show the stream anyway. But MST displays can't proceed 2479 * without link training. 2480 */ 2481 if (status != DC_FAIL_DP_LINK_TRAINING || 2482 pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { 2483 if (false == stream->link->link_status.link_active) 2484 disable_link(stream->link, &pipe_ctx->link_res, 2485 pipe_ctx->stream->signal); 2486 BREAK_TO_DEBUGGER(); 2487 return; 2488 } 2489 } 2490 2491 /* turn off otg test pattern if enable */ 2492 if (pipe_ctx->stream_res.tg->funcs->set_test_pattern) 2493 pipe_ctx->stream_res.tg->funcs->set_test_pattern(pipe_ctx->stream_res.tg, 2494 CONTROLLER_DP_TEST_PATTERN_VIDEOMODE, 2495 COLOR_DEPTH_UNDEFINED); 2496 2497 /* This second call is needed to reconfigure the DIG 2498 * as a workaround for the incorrect value being applied 2499 * from transmitter control. 2500 */ 2501 if (!(dc_is_virtual_signal(pipe_ctx->stream->signal) || 2502 dp_is_128b_132b_signal(pipe_ctx))) { 2503 if (link_enc) 2504 link_enc->funcs->setup( 2505 link_enc, 2506 pipe_ctx->stream->signal); 2507 } 2508 2509 dc->hwss.enable_stream(pipe_ctx); 2510 2511 /* Set DPS PPS SDP (AKA "info frames") */ 2512 if (pipe_ctx->stream->timing.flags.DSC) { 2513 if (dc_is_dp_signal(pipe_ctx->stream->signal) || 2514 dc_is_virtual_signal(pipe_ctx->stream->signal)) { 2515 dp_set_dsc_on_rx(pipe_ctx, true); 2516 link_set_dsc_pps_packet(pipe_ctx, true, true); 2517 } 2518 } 2519 2520 if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) 2521 allocate_mst_payload(pipe_ctx); 2522 else if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT && 2523 dp_is_128b_132b_signal(pipe_ctx)) 2524 update_sst_payload(pipe_ctx, true); 2525 2526 dc->hwss.unblank_stream(pipe_ctx, 2527 &pipe_ctx->stream->link->cur_link_settings); 2528 2529 if (stream->sink_patches.delay_ignore_msa > 0) 2530 msleep(stream->sink_patches.delay_ignore_msa); 2531 2532 if (dc_is_dp_signal(pipe_ctx->stream->signal)) 2533 enable_stream_features(pipe_ctx); 2534 update_psp_stream_config(pipe_ctx, false); 2535 2536 dc->hwss.enable_audio_stream(pipe_ctx); 2537 2538 if (dc_is_hdmi_signal(pipe_ctx->stream->signal)) { 2539 set_avmute(pipe_ctx, false); 2540 } 2541 } 2542