drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link

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This source file includes following definitions.
link_transmitter_control
enable_phy_bypass_mode
disable_prbs_symbols
disable_prbs_mode
program_pattern_symbols
set_dp_phy_pattern_d102
set_link_training_complete
dcn10_link_encoder_set_dp_phy_pattern_training_pattern
setup_panel_mode
set_dp_phy_pattern_symbol_error
set_dp_phy_pattern_prbs7
set_dp_phy_pattern_80bit_custom
set_dp_phy_pattern_hbr2_compliance_cp2520_2
set_dp_phy_pattern_passthrough_mode
get_frontend_source
dcn10_get_dig_frontend
enc1_configure_encoder
dcn10_psr_program_dp_dphy_fast_training
dcn10_psr_program_secondary_packet
dcn10_is_dig_enabled
link_encoder_disable
hpd_initialize
dcn10_link_encoder_validate_dvi_output
dcn10_link_encoder_validate_hdmi_output
dcn10_link_encoder_validate_dp_output
dcn10_link_encoder_construct
dcn10_link_encoder_validate_output_with_stream
dcn10_link_encoder_hw_init
dcn10_link_encoder_destroy
dcn10_link_encoder_setup
dcn10_link_encoder_enable_tmds_output
dcn10_link_encoder_enable_dp_output
dcn10_link_encoder_enable_dp_mst_output
dcn10_link_encoder_disable_output
dcn10_link_encoder_dp_set_lane_settings
dcn10_link_encoder_dp_set_phy_pattern
fill_stream_allocation_row_info
dcn10_link_encoder_update_mst_stream_allocation_table
dcn10_link_encoder_connect_dig_be_to_fe
dcn10_link_encoder_enable_hpd
dcn10_link_encoder_disable_hpd
dcn10_aux_initialize
dcn10_get_dig_mode
   1 /*
   2  * Copyright 2012-15 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 #include <linux/delay.h>
  27 #include <linux/slab.h>
  28 
  29 #include "reg_helper.h"
  30 
  31 #include "core_types.h"
  32 #include "link_encoder.h"
  33 #include "dcn10_link_encoder.h"
  34 #include "stream_encoder.h"
  35 #include "i2caux_interface.h"
  36 #include "dc_bios_types.h"
  37 
  38 #include "gpio_service_interface.h"
  39 
  40 #define CTX \
  41         enc10->base.ctx
  42 #define DC_LOGGER \
  43         enc10->base.ctx->logger
  44 
  45 #define REG(reg)\
  46         (enc10->link_regs->reg)
  47 
  48 #undef FN
  49 #define FN(reg_name, field_name) \
  50         enc10->link_shift->field_name, enc10->link_mask->field_name
  51 
  52 
  53 /*
  54  * @brief
  55  * Trigger Source Select
  56  * ASIC-dependent, actual values for register programming
  57  */
  58 #define DCN10_DIG_FE_SOURCE_SELECT_INVALID 0x0
  59 #define DCN10_DIG_FE_SOURCE_SELECT_DIGA 0x1
  60 #define DCN10_DIG_FE_SOURCE_SELECT_DIGB 0x2
  61 #define DCN10_DIG_FE_SOURCE_SELECT_DIGC 0x4
  62 #define DCN10_DIG_FE_SOURCE_SELECT_DIGD 0x08
  63 #define DCN10_DIG_FE_SOURCE_SELECT_DIGE 0x10
  64 #define DCN10_DIG_FE_SOURCE_SELECT_DIGF 0x20
  65 #define DCN10_DIG_FE_SOURCE_SELECT_DIGG 0x40
  66 
  67 enum {
  68         DP_MST_UPDATE_MAX_RETRY = 50
  69 };
  70 
  71 static const struct link_encoder_funcs dcn10_lnk_enc_funcs = {
  72         .validate_output_with_stream =
  73                 dcn10_link_encoder_validate_output_with_stream,
  74         .hw_init = dcn10_link_encoder_hw_init,
  75         .setup = dcn10_link_encoder_setup,
  76         .enable_tmds_output = dcn10_link_encoder_enable_tmds_output,
  77         .enable_dp_output = dcn10_link_encoder_enable_dp_output,
  78         .enable_dp_mst_output = dcn10_link_encoder_enable_dp_mst_output,
  79         .disable_output = dcn10_link_encoder_disable_output,
  80         .dp_set_lane_settings = dcn10_link_encoder_dp_set_lane_settings,
  81         .dp_set_phy_pattern = dcn10_link_encoder_dp_set_phy_pattern,
  82         .update_mst_stream_allocation_table =
  83                 dcn10_link_encoder_update_mst_stream_allocation_table,
  84         .psr_program_dp_dphy_fast_training =
  85                         dcn10_psr_program_dp_dphy_fast_training,
  86         .psr_program_secondary_packet = dcn10_psr_program_secondary_packet,
  87         .connect_dig_be_to_fe = dcn10_link_encoder_connect_dig_be_to_fe,
  88         .enable_hpd = dcn10_link_encoder_enable_hpd,
  89         .disable_hpd = dcn10_link_encoder_disable_hpd,
  90         .is_dig_enabled = dcn10_is_dig_enabled,
  91         .get_dig_frontend = dcn10_get_dig_frontend,
  92         .get_dig_mode = dcn10_get_dig_mode,
  93         .destroy = dcn10_link_encoder_destroy
  94 };
  95 
  96 static enum bp_result link_transmitter_control(
  97         struct dcn10_link_encoder *enc10,
  98         struct bp_transmitter_control *cntl)
  99 {
 100         enum bp_result result;
 101         struct dc_bios *bp = enc10->base.ctx->dc_bios;
 102 
 103         result = bp->funcs->transmitter_control(bp, cntl);
 104 
 105         return result;
 106 }
 107 
 108 static void enable_phy_bypass_mode(
 109         struct dcn10_link_encoder *enc10,
 110         bool enable)
 111 {
 112         /* This register resides in DP back end block;
 113          * transmitter is used for the offset
 114          */
 115         REG_UPDATE(DP_DPHY_CNTL, DPHY_BYPASS, enable);
 116 
 117 }
 118 
 119 static void disable_prbs_symbols(
 120         struct dcn10_link_encoder *enc10,
 121         bool disable)
 122 {
 123         /* This register resides in DP back end block;
 124          * transmitter is used for the offset
 125          */
 126         REG_UPDATE_4(DP_DPHY_CNTL,
 127                         DPHY_ATEST_SEL_LANE0, disable,
 128                         DPHY_ATEST_SEL_LANE1, disable,
 129                         DPHY_ATEST_SEL_LANE2, disable,
 130                         DPHY_ATEST_SEL_LANE3, disable);
 131 }
 132 
 133 static void disable_prbs_mode(
 134         struct dcn10_link_encoder *enc10)
 135 {
 136         REG_UPDATE(DP_DPHY_PRBS_CNTL, DPHY_PRBS_EN, 0);
 137 }
 138 
 139 static void program_pattern_symbols(
 140         struct dcn10_link_encoder *enc10,
 141         uint16_t pattern_symbols[8])
 142 {
 143         /* This register resides in DP back end block;
 144          * transmitter is used for the offset
 145          */
 146         REG_SET_3(DP_DPHY_SYM0, 0,
 147                         DPHY_SYM1, pattern_symbols[0],
 148                         DPHY_SYM2, pattern_symbols[1],
 149                         DPHY_SYM3, pattern_symbols[2]);
 150 
 151         /* This register resides in DP back end block;
 152          * transmitter is used for the offset
 153          */
 154         REG_SET_3(DP_DPHY_SYM1, 0,
 155                         DPHY_SYM4, pattern_symbols[3],
 156                         DPHY_SYM5, pattern_symbols[4],
 157                         DPHY_SYM6, pattern_symbols[5]);
 158 
 159         /* This register resides in DP back end block;
 160          * transmitter is used for the offset
 161          */
 162         REG_SET_2(DP_DPHY_SYM2, 0,
 163                         DPHY_SYM7, pattern_symbols[6],
 164                         DPHY_SYM8, pattern_symbols[7]);
 165 }
 166 
 167 static void set_dp_phy_pattern_d102(
 168         struct dcn10_link_encoder *enc10)
 169 {
 170         /* Disable PHY Bypass mode to setup the test pattern */
 171         enable_phy_bypass_mode(enc10, false);
 172 
 173         /* For 10-bit PRBS or debug symbols
 174          * please use the following sequence:
 175          *
 176          * Enable debug symbols on the lanes
 177          */
 178         disable_prbs_symbols(enc10, true);
 179 
 180         /* Disable PRBS mode */
 181         disable_prbs_mode(enc10);
 182 
 183         /* Program debug symbols to be output */
 184         {
 185                 uint16_t pattern_symbols[8] = {
 186                         0x2AA, 0x2AA, 0x2AA, 0x2AA,
 187                         0x2AA, 0x2AA, 0x2AA, 0x2AA
 188                 };
 189 
 190                 program_pattern_symbols(enc10, pattern_symbols);
 191         }
 192 
 193         /* Enable phy bypass mode to enable the test pattern */
 194 
 195         enable_phy_bypass_mode(enc10, true);
 196 }
 197 
 198 static void set_link_training_complete(
 199         struct dcn10_link_encoder *enc10,
 200         bool complete)
 201 {
 202         /* This register resides in DP back end block;
 203          * transmitter is used for the offset
 204          */
 205         REG_UPDATE(DP_LINK_CNTL, DP_LINK_TRAINING_COMPLETE, complete);
 206 
 207 }
 208 
 209 void dcn10_link_encoder_set_dp_phy_pattern_training_pattern(
 210         struct link_encoder *enc,
 211         uint32_t index)
 212 {
 213         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 214         /* Write Training Pattern */
 215 
 216         REG_WRITE(DP_DPHY_TRAINING_PATTERN_SEL, index);
 217 
 218         /* Set HW Register Training Complete to false */
 219 
 220         set_link_training_complete(enc10, false);
 221 
 222         /* Disable PHY Bypass mode to output Training Pattern */
 223 
 224         enable_phy_bypass_mode(enc10, false);
 225 
 226         /* Disable PRBS mode */
 227         disable_prbs_mode(enc10);
 228 }
 229 
 230 static void setup_panel_mode(
 231         struct dcn10_link_encoder *enc10,
 232         enum dp_panel_mode panel_mode)
 233 {
 234         uint32_t value;
 235 
 236         if (!REG(DP_DPHY_INTERNAL_CTRL))
 237                 return;
 238 
 239         value = REG_READ(DP_DPHY_INTERNAL_CTRL);
 240 
 241         switch (panel_mode) {
 242         case DP_PANEL_MODE_EDP:
 243                 value = 0x1;
 244                 break;
 245         case DP_PANEL_MODE_SPECIAL:
 246                 value = 0x11;
 247                 break;
 248         default:
 249                 value = 0x0;
 250                 break;
 251         }
 252 
 253         REG_WRITE(DP_DPHY_INTERNAL_CTRL, value);
 254 }
 255 
 256 static void set_dp_phy_pattern_symbol_error(
 257         struct dcn10_link_encoder *enc10)
 258 {
 259         /* Disable PHY Bypass mode to setup the test pattern */
 260         enable_phy_bypass_mode(enc10, false);
 261 
 262         /* program correct panel mode*/
 263         setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT);
 264 
 265         /* A PRBS23 pattern is used for most DP electrical measurements. */
 266 
 267         /* Enable PRBS symbols on the lanes */
 268         disable_prbs_symbols(enc10, false);
 269 
 270         /* For PRBS23 Set bit DPHY_PRBS_SEL=1 and Set bit DPHY_PRBS_EN=1 */
 271         REG_UPDATE_2(DP_DPHY_PRBS_CNTL,
 272                         DPHY_PRBS_SEL, 1,
 273                         DPHY_PRBS_EN, 1);
 274 
 275         /* Enable phy bypass mode to enable the test pattern */
 276         enable_phy_bypass_mode(enc10, true);
 277 }
 278 
 279 static void set_dp_phy_pattern_prbs7(
 280         struct dcn10_link_encoder *enc10)
 281 {
 282         /* Disable PHY Bypass mode to setup the test pattern */
 283         enable_phy_bypass_mode(enc10, false);
 284 
 285         /* A PRBS7 pattern is used for most DP electrical measurements. */
 286 
 287         /* Enable PRBS symbols on the lanes */
 288         disable_prbs_symbols(enc10, false);
 289 
 290         /* For PRBS7 Set bit DPHY_PRBS_SEL=0 and Set bit DPHY_PRBS_EN=1 */
 291         REG_UPDATE_2(DP_DPHY_PRBS_CNTL,
 292                         DPHY_PRBS_SEL, 0,
 293                         DPHY_PRBS_EN, 1);
 294 
 295         /* Enable phy bypass mode to enable the test pattern */
 296         enable_phy_bypass_mode(enc10, true);
 297 }
 298 
 299 static void set_dp_phy_pattern_80bit_custom(
 300         struct dcn10_link_encoder *enc10,
 301         const uint8_t *pattern)
 302 {
 303         /* Disable PHY Bypass mode to setup the test pattern */
 304         enable_phy_bypass_mode(enc10, false);
 305 
 306         /* Enable debug symbols on the lanes */
 307 
 308         disable_prbs_symbols(enc10, true);
 309 
 310         /* Enable PHY bypass mode to enable the test pattern */
 311         /* TODO is it really needed ? */
 312 
 313         enable_phy_bypass_mode(enc10, true);
 314 
 315         /* Program 80 bit custom pattern */
 316         {
 317                 uint16_t pattern_symbols[8];
 318 
 319                 pattern_symbols[0] =
 320                         ((pattern[1] & 0x03) << 8) | pattern[0];
 321                 pattern_symbols[1] =
 322                         ((pattern[2] & 0x0f) << 6) | ((pattern[1] >> 2) & 0x3f);
 323                 pattern_symbols[2] =
 324                         ((pattern[3] & 0x3f) << 4) | ((pattern[2] >> 4) & 0x0f);
 325                 pattern_symbols[3] =
 326                         (pattern[4] << 2) | ((pattern[3] >> 6) & 0x03);
 327                 pattern_symbols[4] =
 328                         ((pattern[6] & 0x03) << 8) | pattern[5];
 329                 pattern_symbols[5] =
 330                         ((pattern[7] & 0x0f) << 6) | ((pattern[6] >> 2) & 0x3f);
 331                 pattern_symbols[6] =
 332                         ((pattern[8] & 0x3f) << 4) | ((pattern[7] >> 4) & 0x0f);
 333                 pattern_symbols[7] =
 334                         (pattern[9] << 2) | ((pattern[8] >> 6) & 0x03);
 335 
 336                 program_pattern_symbols(enc10, pattern_symbols);
 337         }
 338 
 339         /* Enable phy bypass mode to enable the test pattern */
 340 
 341         enable_phy_bypass_mode(enc10, true);
 342 }
 343 
 344 static void set_dp_phy_pattern_hbr2_compliance_cp2520_2(
 345         struct dcn10_link_encoder *enc10,
 346         unsigned int cp2520_pattern)
 347 {
 348 
 349         /* previously there is a register DP_HBR2_EYE_PATTERN
 350          * that is enabled to get the pattern.
 351          * But it does not work with the latest spec change,
 352          * so we are programming the following registers manually.
 353          *
 354          * The following settings have been confirmed
 355          * by Nick Chorney and Sandra Liu
 356          */
 357 
 358         /* Disable PHY Bypass mode to setup the test pattern */
 359 
 360         enable_phy_bypass_mode(enc10, false);
 361 
 362         /* Setup DIG encoder in DP SST mode */
 363         enc10->base.funcs->setup(&enc10->base, SIGNAL_TYPE_DISPLAY_PORT);
 364 
 365         /* ensure normal panel mode. */
 366         setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT);
 367 
 368         /* no vbid after BS (SR)
 369          * DP_LINK_FRAMING_CNTL changed history Sandra Liu
 370          * 11000260 / 11000104 / 110000FC
 371          */
 372         REG_UPDATE_3(DP_LINK_FRAMING_CNTL,
 373                         DP_IDLE_BS_INTERVAL, 0xFC,
 374                         DP_VBID_DISABLE, 1,
 375                         DP_VID_ENHANCED_FRAME_MODE, 1);
 376 
 377         /* swap every BS with SR */
 378         REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_BS_COUNT, 0);
 379 
 380         /* select cp2520 patterns */
 381         if (REG(DP_DPHY_HBR2_PATTERN_CONTROL))
 382                 REG_UPDATE(DP_DPHY_HBR2_PATTERN_CONTROL,
 383                                 DP_DPHY_HBR2_PATTERN_CONTROL, cp2520_pattern);
 384         else
 385                 /* pre-DCE11 can only generate CP2520 pattern 2 */
 386                 ASSERT(cp2520_pattern == 2);
 387 
 388         /* set link training complete */
 389         set_link_training_complete(enc10, true);
 390 
 391         /* disable video stream */
 392         REG_UPDATE(DP_VID_STREAM_CNTL, DP_VID_STREAM_ENABLE, 0);
 393 
 394         /* Disable PHY Bypass mode to setup the test pattern */
 395         enable_phy_bypass_mode(enc10, false);
 396 }
 397 
 398 static void set_dp_phy_pattern_passthrough_mode(
 399         struct dcn10_link_encoder *enc10,
 400         enum dp_panel_mode panel_mode)
 401 {
 402         /* program correct panel mode */
 403         setup_panel_mode(enc10, panel_mode);
 404 
 405         /* restore LINK_FRAMING_CNTL and DPHY_SCRAMBLER_BS_COUNT
 406          * in case we were doing HBR2 compliance pattern before
 407          */
 408         REG_UPDATE_3(DP_LINK_FRAMING_CNTL,
 409                         DP_IDLE_BS_INTERVAL, 0x2000,
 410                         DP_VBID_DISABLE, 0,
 411                         DP_VID_ENHANCED_FRAME_MODE, 1);
 412 
 413         REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_BS_COUNT, 0x1FF);
 414 
 415         /* set link training complete */
 416         set_link_training_complete(enc10, true);
 417 
 418         /* Disable PHY Bypass mode to setup the test pattern */
 419         enable_phy_bypass_mode(enc10, false);
 420 
 421         /* Disable PRBS mode */
 422         disable_prbs_mode(enc10);
 423 }
 424 
 425 /* return value is bit-vector */
 426 static uint8_t get_frontend_source(
 427         enum engine_id engine)
 428 {
 429         switch (engine) {
 430         case ENGINE_ID_DIGA:
 431                 return DCN10_DIG_FE_SOURCE_SELECT_DIGA;
 432         case ENGINE_ID_DIGB:
 433                 return DCN10_DIG_FE_SOURCE_SELECT_DIGB;
 434         case ENGINE_ID_DIGC:
 435                 return DCN10_DIG_FE_SOURCE_SELECT_DIGC;
 436         case ENGINE_ID_DIGD:
 437                 return DCN10_DIG_FE_SOURCE_SELECT_DIGD;
 438         case ENGINE_ID_DIGE:
 439                 return DCN10_DIG_FE_SOURCE_SELECT_DIGE;
 440         case ENGINE_ID_DIGF:
 441                 return DCN10_DIG_FE_SOURCE_SELECT_DIGF;
 442         case ENGINE_ID_DIGG:
 443                 return DCN10_DIG_FE_SOURCE_SELECT_DIGG;
 444         default:
 445                 ASSERT_CRITICAL(false);
 446                 return DCN10_DIG_FE_SOURCE_SELECT_INVALID;
 447         }
 448 }
 449 
 450 unsigned int dcn10_get_dig_frontend(struct link_encoder *enc)
 451 {
 452         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 453         int32_t value;
 454         enum engine_id result;
 455 
 456         REG_GET(DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, &value);
 457 
 458         switch (value) {
 459         case DCN10_DIG_FE_SOURCE_SELECT_DIGA:
 460                 result = ENGINE_ID_DIGA;
 461                 break;
 462         case DCN10_DIG_FE_SOURCE_SELECT_DIGB:
 463                 result = ENGINE_ID_DIGB;
 464                 break;
 465         case DCN10_DIG_FE_SOURCE_SELECT_DIGC:
 466                 result = ENGINE_ID_DIGC;
 467                 break;
 468         case DCN10_DIG_FE_SOURCE_SELECT_DIGD:
 469                 result = ENGINE_ID_DIGD;
 470                 break;
 471         case DCN10_DIG_FE_SOURCE_SELECT_DIGE:
 472                 result = ENGINE_ID_DIGE;
 473                 break;
 474         case DCN10_DIG_FE_SOURCE_SELECT_DIGF:
 475                 result = ENGINE_ID_DIGF;
 476                 break;
 477         case DCN10_DIG_FE_SOURCE_SELECT_DIGG:
 478                 result = ENGINE_ID_DIGG;
 479                 break;
 480         default:
 481                 // invalid source select DIG
 482                 ASSERT(false);
 483                 result = ENGINE_ID_UNKNOWN;
 484         }
 485 
 486         return result;
 487 
 488 }
 489 
 490 void enc1_configure_encoder(
 491         struct dcn10_link_encoder *enc10,
 492         const struct dc_link_settings *link_settings)
 493 {
 494         /* set number of lanes */
 495         REG_SET(DP_CONFIG, 0,
 496                         DP_UDI_LANES, link_settings->lane_count - LANE_COUNT_ONE);
 497 
 498         /* setup scrambler */
 499         REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_ADVANCE, 1);
 500 }
 501 
 502 void dcn10_psr_program_dp_dphy_fast_training(struct link_encoder *enc,
 503                         bool exit_link_training_required)
 504 {
 505         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 506 
 507         if (exit_link_training_required)
 508                 REG_UPDATE(DP_DPHY_FAST_TRAINING,
 509                                 DPHY_RX_FAST_TRAINING_CAPABLE, 1);
 510         else {
 511                 REG_UPDATE(DP_DPHY_FAST_TRAINING,
 512                                 DPHY_RX_FAST_TRAINING_CAPABLE, 0);
 513                 /*In DCE 11, we are able to pre-program a Force SR register
 514                  * to be able to trigger SR symbol after 5 idle patterns
 515                  * transmitted. Upon PSR Exit, DMCU can trigger
 516                  * DPHY_LOAD_BS_COUNT_START = 1. Upon writing 1 to
 517                  * DPHY_LOAD_BS_COUNT_START and the internal counter
 518                  * reaches DPHY_LOAD_BS_COUNT, the next BS symbol will be
 519                  * replaced by SR symbol once.
 520                  */
 521 
 522                 REG_UPDATE(DP_DPHY_BS_SR_SWAP_CNTL, DPHY_LOAD_BS_COUNT, 0x5);
 523         }
 524 }
 525 
 526 void dcn10_psr_program_secondary_packet(struct link_encoder *enc,
 527                         unsigned int sdp_transmit_line_num_deadline)
 528 {
 529         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 530 
 531         REG_UPDATE_2(DP_SEC_CNTL1,
 532                 DP_SEC_GSP0_LINE_NUM, sdp_transmit_line_num_deadline,
 533                 DP_SEC_GSP0_PRIORITY, 1);
 534 }
 535 
 536 bool dcn10_is_dig_enabled(struct link_encoder *enc)
 537 {
 538         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 539         uint32_t value;
 540 
 541         REG_GET(DIG_BE_EN_CNTL, DIG_ENABLE, &value);
 542         return value;
 543 }
 544 
 545 static void link_encoder_disable(struct dcn10_link_encoder *enc10)
 546 {
 547         /* reset training pattern */
 548         REG_SET(DP_DPHY_TRAINING_PATTERN_SEL, 0,
 549                         DPHY_TRAINING_PATTERN_SEL, 0);
 550 
 551         /* reset training complete */
 552         REG_UPDATE(DP_LINK_CNTL, DP_LINK_TRAINING_COMPLETE, 0);
 553 
 554         /* reset panel mode */
 555         setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT);
 556 }
 557 
 558 static void hpd_initialize(
 559         struct dcn10_link_encoder *enc10)
 560 {
 561         /* Associate HPD with DIG_BE */
 562         enum hpd_source_id hpd_source = enc10->base.hpd_source;
 563 
 564         REG_UPDATE(DIG_BE_CNTL, DIG_HPD_SELECT, hpd_source);
 565 }
 566 
 567 bool dcn10_link_encoder_validate_dvi_output(
 568         const struct dcn10_link_encoder *enc10,
 569         enum signal_type connector_signal,
 570         enum signal_type signal,
 571         const struct dc_crtc_timing *crtc_timing)
 572 {
 573         uint32_t max_pixel_clock = TMDS_MAX_PIXEL_CLOCK;
 574 
 575         if (signal == SIGNAL_TYPE_DVI_DUAL_LINK)
 576                 max_pixel_clock *= 2;
 577 
 578         /* This handles the case of HDMI downgrade to DVI we don't want to
 579          * we don't want to cap the pixel clock if the DDI is not DVI.
 580          */
 581         if (connector_signal != SIGNAL_TYPE_DVI_DUAL_LINK &&
 582                         connector_signal != SIGNAL_TYPE_DVI_SINGLE_LINK)
 583                 max_pixel_clock = enc10->base.features.max_hdmi_pixel_clock;
 584 
 585         /* DVI only support RGB pixel encoding */
 586         if (crtc_timing->pixel_encoding != PIXEL_ENCODING_RGB)
 587                 return false;
 588 
 589         /*connect DVI via adpater's HDMI connector*/
 590         if ((connector_signal == SIGNAL_TYPE_DVI_SINGLE_LINK ||
 591                 connector_signal == SIGNAL_TYPE_HDMI_TYPE_A) &&
 592                 signal != SIGNAL_TYPE_HDMI_TYPE_A &&
 593                 crtc_timing->pix_clk_100hz > (TMDS_MAX_PIXEL_CLOCK * 10))
 594                 return false;
 595         if (crtc_timing->pix_clk_100hz < (TMDS_MIN_PIXEL_CLOCK * 10))
 596                 return false;
 597 
 598         if (crtc_timing->pix_clk_100hz > (max_pixel_clock * 10))
 599                 return false;
 600 
 601         /* DVI supports 6/8bpp single-link and 10/16bpp dual-link */
 602         switch (crtc_timing->display_color_depth) {
 603         case COLOR_DEPTH_666:
 604         case COLOR_DEPTH_888:
 605         break;
 606         case COLOR_DEPTH_101010:
 607         case COLOR_DEPTH_161616:
 608                 if (signal != SIGNAL_TYPE_DVI_DUAL_LINK)
 609                         return false;
 610         break;
 611         default:
 612                 return false;
 613         }
 614 
 615         return true;
 616 }
 617 
 618 static bool dcn10_link_encoder_validate_hdmi_output(
 619         const struct dcn10_link_encoder *enc10,
 620         const struct dc_crtc_timing *crtc_timing,
 621         int adjusted_pix_clk_100hz)
 622 {
 623         enum dc_color_depth max_deep_color =
 624                         enc10->base.features.max_hdmi_deep_color;
 625 
 626         if (max_deep_color < crtc_timing->display_color_depth)
 627                 return false;
 628 
 629         if (crtc_timing->display_color_depth < COLOR_DEPTH_888)
 630                 return false;
 631         if (adjusted_pix_clk_100hz < (TMDS_MIN_PIXEL_CLOCK * 10))
 632                 return false;
 633 
 634         if ((adjusted_pix_clk_100hz == 0) ||
 635                 (adjusted_pix_clk_100hz > (enc10->base.features.max_hdmi_pixel_clock * 10)))
 636                 return false;
 637 
 638         /* DCE11 HW does not support 420 */
 639         if (!enc10->base.features.hdmi_ycbcr420_supported &&
 640                         crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
 641                 return false;
 642 
 643         if (!enc10->base.features.flags.bits.HDMI_6GB_EN &&
 644                 adjusted_pix_clk_100hz >= 3000000)
 645                 return false;
 646         if (enc10->base.ctx->dc->debug.hdmi20_disable &&
 647                 crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
 648                 return false;
 649         return true;
 650 }
 651 
 652 bool dcn10_link_encoder_validate_dp_output(
 653         const struct dcn10_link_encoder *enc10,
 654         const struct dc_crtc_timing *crtc_timing)
 655 {
 656         if (crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420) {
 657                 if (!enc10->base.features.dp_ycbcr420_supported)
 658                         return false;
 659         }
 660 
 661         return true;
 662 }
 663 
 664 void dcn10_link_encoder_construct(
 665         struct dcn10_link_encoder *enc10,
 666         const struct encoder_init_data *init_data,
 667         const struct encoder_feature_support *enc_features,
 668         const struct dcn10_link_enc_registers *link_regs,
 669         const struct dcn10_link_enc_aux_registers *aux_regs,
 670         const struct dcn10_link_enc_hpd_registers *hpd_regs,
 671         const struct dcn10_link_enc_shift *link_shift,
 672         const struct dcn10_link_enc_mask *link_mask)
 673 {
 674         struct bp_encoder_cap_info bp_cap_info = {0};
 675         const struct dc_vbios_funcs *bp_funcs = init_data->ctx->dc_bios->funcs;
 676         enum bp_result result = BP_RESULT_OK;
 677 
 678         enc10->base.funcs = &dcn10_lnk_enc_funcs;
 679         enc10->base.ctx = init_data->ctx;
 680         enc10->base.id = init_data->encoder;
 681 
 682         enc10->base.hpd_source = init_data->hpd_source;
 683         enc10->base.connector = init_data->connector;
 684 
 685         enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
 686 
 687         enc10->base.features = *enc_features;
 688 
 689         enc10->base.transmitter = init_data->transmitter;
 690 
 691         /* set the flag to indicate whether driver poll the I2C data pin
 692          * while doing the DP sink detect
 693          */
 694 
 695 /*      if (dal_adapter_service_is_feature_supported(as,
 696                 FEATURE_DP_SINK_DETECT_POLL_DATA_PIN))
 697                 enc10->base.features.flags.bits.
 698                         DP_SINK_DETECT_POLL_DATA_PIN = true;*/
 699 
 700         enc10->base.output_signals =
 701                 SIGNAL_TYPE_DVI_SINGLE_LINK |
 702                 SIGNAL_TYPE_DVI_DUAL_LINK |
 703                 SIGNAL_TYPE_LVDS |
 704                 SIGNAL_TYPE_DISPLAY_PORT |
 705                 SIGNAL_TYPE_DISPLAY_PORT_MST |
 706                 SIGNAL_TYPE_EDP |
 707                 SIGNAL_TYPE_HDMI_TYPE_A;
 708 
 709         /* For DCE 8.0 and 8.1, by design, UNIPHY is hardwired to DIG_BE.
 710          * SW always assign DIG_FE 1:1 mapped to DIG_FE for non-MST UNIPHY.
 711          * SW assign DIG_FE to non-MST UNIPHY first and MST last. So prefer
 712          * DIG is per UNIPHY and used by SST DP, eDP, HDMI, DVI and LVDS.
 713          * Prefer DIG assignment is decided by board design.
 714          * For DCE 8.0, there are only max 6 UNIPHYs, we assume board design
 715          * and VBIOS will filter out 7 UNIPHY for DCE 8.0.
 716          * By this, adding DIGG should not hurt DCE 8.0.
 717          * This will let DCE 8.1 share DCE 8.0 as much as possible
 718          */
 719 
 720         enc10->link_regs = link_regs;
 721         enc10->aux_regs = aux_regs;
 722         enc10->hpd_regs = hpd_regs;
 723         enc10->link_shift = link_shift;
 724         enc10->link_mask = link_mask;
 725 
 726         switch (enc10->base.transmitter) {
 727         case TRANSMITTER_UNIPHY_A:
 728                 enc10->base.preferred_engine = ENGINE_ID_DIGA;
 729         break;
 730         case TRANSMITTER_UNIPHY_B:
 731                 enc10->base.preferred_engine = ENGINE_ID_DIGB;
 732         break;
 733         case TRANSMITTER_UNIPHY_C:
 734                 enc10->base.preferred_engine = ENGINE_ID_DIGC;
 735         break;
 736         case TRANSMITTER_UNIPHY_D:
 737                 enc10->base.preferred_engine = ENGINE_ID_DIGD;
 738         break;
 739         case TRANSMITTER_UNIPHY_E:
 740                 enc10->base.preferred_engine = ENGINE_ID_DIGE;
 741         break;
 742         case TRANSMITTER_UNIPHY_F:
 743                 enc10->base.preferred_engine = ENGINE_ID_DIGF;
 744         break;
 745         case TRANSMITTER_UNIPHY_G:
 746                 enc10->base.preferred_engine = ENGINE_ID_DIGG;
 747         break;
 748         default:
 749                 ASSERT_CRITICAL(false);
 750                 enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
 751         }
 752 
 753         /* default to one to mirror Windows behavior */
 754         enc10->base.features.flags.bits.HDMI_6GB_EN = 1;
 755 
 756         result = bp_funcs->get_encoder_cap_info(enc10->base.ctx->dc_bios,
 757                                                 enc10->base.id, &bp_cap_info);
 758 
 759         /* Override features with DCE-specific values */
 760         if (result == BP_RESULT_OK) {
 761                 enc10->base.features.flags.bits.IS_HBR2_CAPABLE =
 762                                 bp_cap_info.DP_HBR2_EN;
 763                 enc10->base.features.flags.bits.IS_HBR3_CAPABLE =
 764                                 bp_cap_info.DP_HBR3_EN;
 765                 enc10->base.features.flags.bits.HDMI_6GB_EN = bp_cap_info.HDMI_6GB_EN;
 766                 enc10->base.features.flags.bits.DP_IS_USB_C =
 767                                 bp_cap_info.DP_IS_USB_C;
 768         } else {
 769                 DC_LOG_WARNING("%s: Failed to get encoder_cap_info from VBIOS with error code %d!\n",
 770                                 __func__,
 771                                 result);
 772         }
 773         if (enc10->base.ctx->dc->debug.hdmi20_disable) {
 774                 enc10->base.features.flags.bits.HDMI_6GB_EN = 0;
 775         }
 776 }
 777 
 778 bool dcn10_link_encoder_validate_output_with_stream(
 779         struct link_encoder *enc,
 780         const struct dc_stream_state *stream)
 781 {
 782         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 783         bool is_valid;
 784 
 785         switch (stream->signal) {
 786         case SIGNAL_TYPE_DVI_SINGLE_LINK:
 787         case SIGNAL_TYPE_DVI_DUAL_LINK:
 788                 is_valid = dcn10_link_encoder_validate_dvi_output(
 789                         enc10,
 790                         stream->link->connector_signal,
 791                         stream->signal,
 792                         &stream->timing);
 793         break;
 794         case SIGNAL_TYPE_HDMI_TYPE_A:
 795                 is_valid = dcn10_link_encoder_validate_hdmi_output(
 796                                 enc10,
 797                                 &stream->timing,
 798                                 stream->phy_pix_clk * 10);
 799         break;
 800         case SIGNAL_TYPE_DISPLAY_PORT:
 801         case SIGNAL_TYPE_DISPLAY_PORT_MST:
 802                 is_valid = dcn10_link_encoder_validate_dp_output(
 803                                         enc10, &stream->timing);
 804         break;
 805         case SIGNAL_TYPE_EDP:
 806                 is_valid = (stream->timing.pixel_encoding == PIXEL_ENCODING_RGB) ? true : false;
 807         break;
 808         case SIGNAL_TYPE_VIRTUAL:
 809                 is_valid = true;
 810                 break;
 811         default:
 812                 is_valid = false;
 813         break;
 814         }
 815 
 816         return is_valid;
 817 }
 818 
 819 void dcn10_link_encoder_hw_init(
 820         struct link_encoder *enc)
 821 {
 822         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 823         struct bp_transmitter_control cntl = { 0 };
 824         enum bp_result result;
 825 
 826         cntl.action = TRANSMITTER_CONTROL_INIT;
 827         cntl.engine_id = ENGINE_ID_UNKNOWN;
 828         cntl.transmitter = enc10->base.transmitter;
 829         cntl.connector_obj_id = enc10->base.connector;
 830         cntl.lanes_number = LANE_COUNT_FOUR;
 831         cntl.coherent = false;
 832         cntl.hpd_sel = enc10->base.hpd_source;
 833 
 834         if (enc10->base.connector.id == CONNECTOR_ID_EDP)
 835                 cntl.signal = SIGNAL_TYPE_EDP;
 836 
 837         result = link_transmitter_control(enc10, &cntl);
 838 
 839         if (result != BP_RESULT_OK) {
 840                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
 841                         __func__);
 842                 BREAK_TO_DEBUGGER();
 843                 return;
 844         }
 845 
 846         if (enc10->base.connector.id == CONNECTOR_ID_LVDS) {
 847                 cntl.action = TRANSMITTER_CONTROL_BACKLIGHT_BRIGHTNESS;
 848 
 849                 result = link_transmitter_control(enc10, &cntl);
 850 
 851                 ASSERT(result == BP_RESULT_OK);
 852 
 853         }
 854         dcn10_aux_initialize(enc10);
 855 
 856         /* reinitialize HPD.
 857          * hpd_initialize() will pass DIG_FE id to HW context.
 858          * All other routine within HW context will use fe_engine_offset
 859          * as DIG_FE id even caller pass DIG_FE id.
 860          * So this routine must be called first.
 861          */
 862         hpd_initialize(enc10);
 863 }
 864 
 865 void dcn10_link_encoder_destroy(struct link_encoder **enc)
 866 {
 867         kfree(TO_DCN10_LINK_ENC(*enc));
 868         *enc = NULL;
 869 }
 870 
 871 void dcn10_link_encoder_setup(
 872         struct link_encoder *enc,
 873         enum signal_type signal)
 874 {
 875         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 876 
 877         switch (signal) {
 878         case SIGNAL_TYPE_EDP:
 879         case SIGNAL_TYPE_DISPLAY_PORT:
 880                 /* DP SST */
 881                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 0);
 882                 break;
 883         case SIGNAL_TYPE_LVDS:
 884                 /* LVDS */
 885                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 1);
 886                 break;
 887         case SIGNAL_TYPE_DVI_SINGLE_LINK:
 888         case SIGNAL_TYPE_DVI_DUAL_LINK:
 889                 /* TMDS-DVI */
 890                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 2);
 891                 break;
 892         case SIGNAL_TYPE_HDMI_TYPE_A:
 893                 /* TMDS-HDMI */
 894                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 3);
 895                 break;
 896         case SIGNAL_TYPE_DISPLAY_PORT_MST:
 897                 /* DP MST */
 898                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 5);
 899                 break;
 900         default:
 901                 ASSERT_CRITICAL(false);
 902                 /* invalid mode ! */
 903                 break;
 904         }
 905 
 906 }
 907 
 908 /* TODO: still need depth or just pass in adjusted pixel clock? */
 909 void dcn10_link_encoder_enable_tmds_output(
 910         struct link_encoder *enc,
 911         enum clock_source_id clock_source,
 912         enum dc_color_depth color_depth,
 913         enum signal_type signal,
 914         uint32_t pixel_clock)
 915 {
 916         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 917         struct bp_transmitter_control cntl = { 0 };
 918         enum bp_result result;
 919 
 920         /* Enable the PHY */
 921 
 922         cntl.action = TRANSMITTER_CONTROL_ENABLE;
 923         cntl.engine_id = enc->preferred_engine;
 924         cntl.transmitter = enc10->base.transmitter;
 925         cntl.pll_id = clock_source;
 926         cntl.signal = signal;
 927         if (cntl.signal == SIGNAL_TYPE_DVI_DUAL_LINK)
 928                 cntl.lanes_number = 8;
 929         else
 930                 cntl.lanes_number = 4;
 931 
 932         cntl.hpd_sel = enc10->base.hpd_source;
 933 
 934         cntl.pixel_clock = pixel_clock;
 935         cntl.color_depth = color_depth;
 936 
 937         result = link_transmitter_control(enc10, &cntl);
 938 
 939         if (result != BP_RESULT_OK) {
 940                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
 941                         __func__);
 942                 BREAK_TO_DEBUGGER();
 943         }
 944 }
 945 
 946 /* enables DP PHY output */
 947 void dcn10_link_encoder_enable_dp_output(
 948         struct link_encoder *enc,
 949         const struct dc_link_settings *link_settings,
 950         enum clock_source_id clock_source)
 951 {
 952         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 953         struct bp_transmitter_control cntl = { 0 };
 954         enum bp_result result;
 955 
 956         /* Enable the PHY */
 957 
 958         /* number_of_lanes is used for pixel clock adjust,
 959          * but it's not passed to asic_control.
 960          * We need to set number of lanes manually.
 961          */
 962         enc1_configure_encoder(enc10, link_settings);
 963 
 964         cntl.action = TRANSMITTER_CONTROL_ENABLE;
 965         cntl.engine_id = enc->preferred_engine;
 966         cntl.transmitter = enc10->base.transmitter;
 967         cntl.pll_id = clock_source;
 968         cntl.signal = SIGNAL_TYPE_DISPLAY_PORT;
 969         cntl.lanes_number = link_settings->lane_count;
 970         cntl.hpd_sel = enc10->base.hpd_source;
 971         cntl.pixel_clock = link_settings->link_rate
 972                                                 * LINK_RATE_REF_FREQ_IN_KHZ;
 973         /* TODO: check if undefined works */
 974         cntl.color_depth = COLOR_DEPTH_UNDEFINED;
 975 
 976         result = link_transmitter_control(enc10, &cntl);
 977 
 978         if (result != BP_RESULT_OK) {
 979                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
 980                         __func__);
 981                 BREAK_TO_DEBUGGER();
 982         }
 983 }
 984 
 985 /* enables DP PHY output in MST mode */
 986 void dcn10_link_encoder_enable_dp_mst_output(
 987         struct link_encoder *enc,
 988         const struct dc_link_settings *link_settings,
 989         enum clock_source_id clock_source)
 990 {
 991         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 992         struct bp_transmitter_control cntl = { 0 };
 993         enum bp_result result;
 994 
 995         /* Enable the PHY */
 996 
 997         /* number_of_lanes is used for pixel clock adjust,
 998          * but it's not passed to asic_control.
 999          * We need to set number of lanes manually.
1000          */
1001         enc1_configure_encoder(enc10, link_settings);
1002 
1003         cntl.action = TRANSMITTER_CONTROL_ENABLE;
1004         cntl.engine_id = ENGINE_ID_UNKNOWN;
1005         cntl.transmitter = enc10->base.transmitter;
1006         cntl.pll_id = clock_source;
1007         cntl.signal = SIGNAL_TYPE_DISPLAY_PORT_MST;
1008         cntl.lanes_number = link_settings->lane_count;
1009         cntl.hpd_sel = enc10->base.hpd_source;
1010         cntl.pixel_clock = link_settings->link_rate
1011                                                 * LINK_RATE_REF_FREQ_IN_KHZ;
1012         /* TODO: check if undefined works */
1013         cntl.color_depth = COLOR_DEPTH_UNDEFINED;
1014 
1015         result = link_transmitter_control(enc10, &cntl);
1016 
1017         if (result != BP_RESULT_OK) {
1018                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
1019                         __func__);
1020                 BREAK_TO_DEBUGGER();
1021         }
1022 }
1023 /*
1024  * @brief
1025  * Disable transmitter and its encoder
1026  */
1027 void dcn10_link_encoder_disable_output(
1028         struct link_encoder *enc,
1029         enum signal_type signal)
1030 {
1031         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1032         struct bp_transmitter_control cntl = { 0 };
1033         enum bp_result result;
1034 
1035         if (!dcn10_is_dig_enabled(enc)) {
1036                 /* OF_SKIP_POWER_DOWN_INACTIVE_ENCODER */
1037         /*in DP_Alt_No_Connect case, we turn off the dig already,
1038         after excuation the PHY w/a sequence, not allow touch PHY any more*/
1039                 return;
1040         }
1041         /* Power-down RX and disable GPU PHY should be paired.
1042          * Disabling PHY without powering down RX may cause
1043          * symbol lock loss, on which we will get DP Sink interrupt.
1044          */
1045 
1046         /* There is a case for the DP active dongles
1047          * where we want to disable the PHY but keep RX powered,
1048          * for those we need to ignore DP Sink interrupt
1049          * by checking lane count that has been set
1050          * on the last do_enable_output().
1051          */
1052 
1053         /* disable transmitter */
1054         cntl.action = TRANSMITTER_CONTROL_DISABLE;
1055         cntl.transmitter = enc10->base.transmitter;
1056         cntl.hpd_sel = enc10->base.hpd_source;
1057         cntl.signal = signal;
1058         cntl.connector_obj_id = enc10->base.connector;
1059 
1060         result = link_transmitter_control(enc10, &cntl);
1061 
1062         if (result != BP_RESULT_OK) {
1063                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
1064                         __func__);
1065                 BREAK_TO_DEBUGGER();
1066                 return;
1067         }
1068 
1069         /* disable encoder */
1070         if (dc_is_dp_signal(signal))
1071                 link_encoder_disable(enc10);
1072 }
1073 
1074 void dcn10_link_encoder_dp_set_lane_settings(
1075         struct link_encoder *enc,
1076         const struct link_training_settings *link_settings)
1077 {
1078         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1079         union dpcd_training_lane_set training_lane_set = { { 0 } };
1080         int32_t lane = 0;
1081         struct bp_transmitter_control cntl = { 0 };
1082 
1083         if (!link_settings) {
1084                 BREAK_TO_DEBUGGER();
1085                 return;
1086         }
1087 
1088         cntl.action = TRANSMITTER_CONTROL_SET_VOLTAGE_AND_PREEMPASIS;
1089         cntl.transmitter = enc10->base.transmitter;
1090         cntl.connector_obj_id = enc10->base.connector;
1091         cntl.lanes_number = link_settings->link_settings.lane_count;
1092         cntl.hpd_sel = enc10->base.hpd_source;
1093         cntl.pixel_clock = link_settings->link_settings.link_rate *
1094                                                 LINK_RATE_REF_FREQ_IN_KHZ;
1095 
1096         for (lane = 0; lane < link_settings->link_settings.lane_count; lane++) {
1097                 /* translate lane settings */
1098 
1099                 training_lane_set.bits.VOLTAGE_SWING_SET =
1100                         link_settings->lane_settings[lane].VOLTAGE_SWING;
1101                 training_lane_set.bits.PRE_EMPHASIS_SET =
1102                         link_settings->lane_settings[lane].PRE_EMPHASIS;
1103 
1104                 /* post cursor 2 setting only applies to HBR2 link rate */
1105                 if (link_settings->link_settings.link_rate == LINK_RATE_HIGH2) {
1106                         /* this is passed to VBIOS
1107                          * to program post cursor 2 level
1108                          */
1109                         training_lane_set.bits.POST_CURSOR2_SET =
1110                                 link_settings->lane_settings[lane].POST_CURSOR2;
1111                 }
1112 
1113                 cntl.lane_select = lane;
1114                 cntl.lane_settings = training_lane_set.raw;
1115 
1116                 /* call VBIOS table to set voltage swing and pre-emphasis */
1117                 link_transmitter_control(enc10, &cntl);
1118         }
1119 }
1120 
1121 /* set DP PHY test and training patterns */
1122 void dcn10_link_encoder_dp_set_phy_pattern(
1123         struct link_encoder *enc,
1124         const struct encoder_set_dp_phy_pattern_param *param)
1125 {
1126         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1127 
1128         switch (param->dp_phy_pattern) {
1129         case DP_TEST_PATTERN_TRAINING_PATTERN1:
1130                 dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 0);
1131                 break;
1132         case DP_TEST_PATTERN_TRAINING_PATTERN2:
1133                 dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 1);
1134                 break;
1135         case DP_TEST_PATTERN_TRAINING_PATTERN3:
1136                 dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 2);
1137                 break;
1138         case DP_TEST_PATTERN_TRAINING_PATTERN4:
1139                 dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 3);
1140                 break;
1141         case DP_TEST_PATTERN_D102:
1142                 set_dp_phy_pattern_d102(enc10);
1143                 break;
1144         case DP_TEST_PATTERN_SYMBOL_ERROR:
1145                 set_dp_phy_pattern_symbol_error(enc10);
1146                 break;
1147         case DP_TEST_PATTERN_PRBS7:
1148                 set_dp_phy_pattern_prbs7(enc10);
1149                 break;
1150         case DP_TEST_PATTERN_80BIT_CUSTOM:
1151                 set_dp_phy_pattern_80bit_custom(
1152                         enc10, param->custom_pattern);
1153                 break;
1154         case DP_TEST_PATTERN_CP2520_1:
1155                 set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 1);
1156                 break;
1157         case DP_TEST_PATTERN_CP2520_2:
1158                 set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 2);
1159                 break;
1160         case DP_TEST_PATTERN_CP2520_3:
1161                 set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 3);
1162                 break;
1163         case DP_TEST_PATTERN_VIDEO_MODE: {
1164                 set_dp_phy_pattern_passthrough_mode(
1165                         enc10, param->dp_panel_mode);
1166                 break;
1167         }
1168 
1169         default:
1170                 /* invalid phy pattern */
1171                 ASSERT_CRITICAL(false);
1172                 break;
1173         }
1174 }
1175 
1176 static void fill_stream_allocation_row_info(
1177         const struct link_mst_stream_allocation *stream_allocation,
1178         uint32_t *src,
1179         uint32_t *slots)
1180 {
1181         const struct stream_encoder *stream_enc = stream_allocation->stream_enc;
1182 
1183         if (stream_enc) {
1184                 *src = stream_enc->id;
1185                 *slots = stream_allocation->slot_count;
1186         } else {
1187                 *src = 0;
1188                 *slots = 0;
1189         }
1190 }
1191 
1192 /* programs DP MST VC payload allocation */
1193 void dcn10_link_encoder_update_mst_stream_allocation_table(
1194         struct link_encoder *enc,
1195         const struct link_mst_stream_allocation_table *table)
1196 {
1197         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1198         uint32_t value0 = 0;
1199         uint32_t value1 = 0;
1200         uint32_t value2 = 0;
1201         uint32_t slots = 0;
1202         uint32_t src = 0;
1203         uint32_t retries = 0;
1204 
1205         /* For CZ, there are only 3 pipes. So Virtual channel is up 3.*/
1206 
1207         /* --- Set MSE Stream Attribute -
1208          * Setup VC Payload Table on Tx Side,
1209          * Issue allocation change trigger
1210          * to commit payload on both tx and rx side
1211          */
1212 
1213         /* we should clean-up table each time */
1214 
1215         if (table->stream_count >= 1) {
1216                 fill_stream_allocation_row_info(
1217                         &table->stream_allocations[0],
1218                         &src,
1219                         &slots);
1220         } else {
1221                 src = 0;
1222                 slots = 0;
1223         }
1224 
1225         REG_UPDATE_2(DP_MSE_SAT0,
1226                         DP_MSE_SAT_SRC0, src,
1227                         DP_MSE_SAT_SLOT_COUNT0, slots);
1228 
1229         if (table->stream_count >= 2) {
1230                 fill_stream_allocation_row_info(
1231                         &table->stream_allocations[1],
1232                         &src,
1233                         &slots);
1234         } else {
1235                 src = 0;
1236                 slots = 0;
1237         }
1238 
1239         REG_UPDATE_2(DP_MSE_SAT0,
1240                         DP_MSE_SAT_SRC1, src,
1241                         DP_MSE_SAT_SLOT_COUNT1, slots);
1242 
1243         if (table->stream_count >= 3) {
1244                 fill_stream_allocation_row_info(
1245                         &table->stream_allocations[2],
1246                         &src,
1247                         &slots);
1248         } else {
1249                 src = 0;
1250                 slots = 0;
1251         }
1252 
1253         REG_UPDATE_2(DP_MSE_SAT1,
1254                         DP_MSE_SAT_SRC2, src,
1255                         DP_MSE_SAT_SLOT_COUNT2, slots);
1256 
1257         if (table->stream_count >= 4) {
1258                 fill_stream_allocation_row_info(
1259                         &table->stream_allocations[3],
1260                         &src,
1261                         &slots);
1262         } else {
1263                 src = 0;
1264                 slots = 0;
1265         }
1266 
1267         REG_UPDATE_2(DP_MSE_SAT1,
1268                         DP_MSE_SAT_SRC3, src,
1269                         DP_MSE_SAT_SLOT_COUNT3, slots);
1270 
1271         /* --- wait for transaction finish */
1272 
1273         /* send allocation change trigger (ACT) ?
1274          * this step first sends the ACT,
1275          * then double buffers the SAT into the hardware
1276          * making the new allocation active on the DP MST mode link
1277          */
1278 
1279         /* DP_MSE_SAT_UPDATE:
1280          * 0 - No Action
1281          * 1 - Update SAT with trigger
1282          * 2 - Update SAT without trigger
1283          */
1284         REG_UPDATE(DP_MSE_SAT_UPDATE,
1285                         DP_MSE_SAT_UPDATE, 1);
1286 
1287         /* wait for update to complete
1288          * (i.e. DP_MSE_SAT_UPDATE field is reset to 0)
1289          * then wait for the transmission
1290          * of at least 16 MTP headers on immediate local link.
1291          * i.e. DP_MSE_16_MTP_KEEPOUT field (read only) is reset to 0
1292          * a value of 1 indicates that DP MST mode
1293          * is in the 16 MTP keepout region after a VC has been added.
1294          * MST stream bandwidth (VC rate) can be configured
1295          * after this bit is cleared
1296          */
1297         do {
1298                 udelay(10);
1299 
1300                 value0 = REG_READ(DP_MSE_SAT_UPDATE);
1301 
1302                 REG_GET(DP_MSE_SAT_UPDATE,
1303                                 DP_MSE_SAT_UPDATE, &value1);
1304 
1305                 REG_GET(DP_MSE_SAT_UPDATE,
1306                                 DP_MSE_16_MTP_KEEPOUT, &value2);
1307 
1308                 /* bit field DP_MSE_SAT_UPDATE is set to 1 already */
1309                 if (!value1 && !value2)
1310                         break;
1311                 ++retries;
1312         } while (retries < DP_MST_UPDATE_MAX_RETRY);
1313 }
1314 
1315 void dcn10_link_encoder_connect_dig_be_to_fe(
1316         struct link_encoder *enc,
1317         enum engine_id engine,
1318         bool connect)
1319 {
1320         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1321         uint32_t field;
1322 
1323         if (engine != ENGINE_ID_UNKNOWN) {
1324 
1325                 REG_GET(DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, &field);
1326 
1327                 if (connect)
1328                         field |= get_frontend_source(engine);
1329                 else
1330                         field &= ~get_frontend_source(engine);
1331 
1332                 REG_UPDATE(DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, field);
1333         }
1334 }
1335 
1336 
1337 #define HPD_REG(reg)\
1338         (enc10->hpd_regs->reg)
1339 
1340 #define HPD_REG_READ(reg_name) \
1341                 dm_read_reg(CTX, HPD_REG(reg_name))
1342 
1343 #define HPD_REG_UPDATE_N(reg_name, n, ...)      \
1344                 generic_reg_update_ex(CTX, \
1345                                 HPD_REG(reg_name), \
1346                                 n, __VA_ARGS__)
1347 
1348 #define HPD_REG_UPDATE(reg_name, field, val)    \
1349                 HPD_REG_UPDATE_N(reg_name, 1, \
1350                                 FN(reg_name, field), val)
1351 
1352 void dcn10_link_encoder_enable_hpd(struct link_encoder *enc)
1353 {
1354         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1355 
1356         HPD_REG_UPDATE(DC_HPD_CONTROL,
1357                         DC_HPD_EN, 1);
1358 }
1359 
1360 void dcn10_link_encoder_disable_hpd(struct link_encoder *enc)
1361 {
1362         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1363 
1364         HPD_REG_UPDATE(DC_HPD_CONTROL,
1365                         DC_HPD_EN, 0);
1366 }
1367 
1368 
1369 #define AUX_REG(reg)\
1370         (enc10->aux_regs->reg)
1371 
1372 #define AUX_REG_READ(reg_name) \
1373                 dm_read_reg(CTX, AUX_REG(reg_name))
1374 
1375 #define AUX_REG_UPDATE_N(reg_name, n, ...)      \
1376                 generic_reg_update_ex(CTX, \
1377                                 AUX_REG(reg_name), \
1378                                 n, __VA_ARGS__)
1379 
1380 #define AUX_REG_UPDATE(reg_name, field, val)    \
1381                 AUX_REG_UPDATE_N(reg_name, 1, \
1382                                 FN(reg_name, field), val)
1383 
1384 #define AUX_REG_UPDATE_2(reg, f1, v1, f2, v2)   \
1385                 AUX_REG_UPDATE_N(reg, 2,\
1386                                 FN(reg, f1), v1,\
1387                                 FN(reg, f2), v2)
1388 
1389 void dcn10_aux_initialize(struct dcn10_link_encoder *enc10)
1390 {
1391         enum hpd_source_id hpd_source = enc10->base.hpd_source;
1392 
1393         AUX_REG_UPDATE_2(AUX_CONTROL,
1394                         AUX_HPD_SEL, hpd_source,
1395                         AUX_LS_READ_EN, 0);
1396 
1397         /* 1/4 window (the maximum allowed) */
1398         AUX_REG_UPDATE(AUX_DPHY_RX_CONTROL0,
1399                         AUX_RX_RECEIVE_WINDOW, 0);
1400 }
1401 
1402 enum signal_type dcn10_get_dig_mode(
1403         struct link_encoder *enc)
1404 {
1405         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1406         uint32_t value;
1407         REG_GET(DIG_BE_CNTL, DIG_MODE, &value);
1408         switch (value) {
1409         case 1:
1410                 return SIGNAL_TYPE_DISPLAY_PORT;
1411         case 2:
1412                 return SIGNAL_TYPE_DVI_SINGLE_LINK;
1413         case 3:
1414                 return SIGNAL_TYPE_HDMI_TYPE_A;
1415         case 5:
1416                 return SIGNAL_TYPE_DISPLAY_PORT_MST;
1417         default:
1418                 return SIGNAL_TYPE_NONE;
1419         }
1420         return SIGNAL_TYPE_NONE;
1421 }
1422
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c

DEFINITIONS
