drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c

   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 "reg_helper.h"
  27
  28 #include "core_types.h"
  29 #include "link_encoder.h"
  30 #include "dcn10_link_encoder.h"
  31 #include "stream_encoder.h"
  32 #include "i2caux_interface.h"
  33 #include "dc_bios_types.h"
  34
  35 #include "gpio_service_interface.h"
  36
  37 #define CTX \
  38         enc10->base.ctx
  39 #define DC_LOGGER \
  40         enc10->base.ctx->logger
  41
  42 #define REG(reg)\
  43         (enc10->link_regs->reg)
  44
  45 #undef FN
  46 #define FN(reg_name, field_name) \
  47         enc10->link_shift->field_name, enc10->link_mask->field_name
  48
  49
  50 /*
  51  * @brief
  52  * Trigger Source Select
  53  * ASIC-dependent, actual values for register programming
  54  */
  55 #define DCN10_DIG_FE_SOURCE_SELECT_INVALID 0x0
  56 #define DCN10_DIG_FE_SOURCE_SELECT_DIGA 0x1
  57 #define DCN10_DIG_FE_SOURCE_SELECT_DIGB 0x2
  58 #define DCN10_DIG_FE_SOURCE_SELECT_DIGC 0x4
  59 #define DCN10_DIG_FE_SOURCE_SELECT_DIGD 0x08
  60 #define DCN10_DIG_FE_SOURCE_SELECT_DIGE 0x10
  61 #define DCN10_DIG_FE_SOURCE_SELECT_DIGF 0x20
  62 #define DCN10_DIG_FE_SOURCE_SELECT_DIGG 0x40
  63
  64 enum {
  65         DP_MST_UPDATE_MAX_RETRY = 50
  66 };
  67
  68 static const struct link_encoder_funcs dcn10_lnk_enc_funcs = {
  69         .validate_output_with_stream =
  70                 dcn10_link_encoder_validate_output_with_stream,
  71         .hw_init = dcn10_link_encoder_hw_init,
  72         .setup = dcn10_link_encoder_setup,
  73         .enable_tmds_output = dcn10_link_encoder_enable_tmds_output,
  74         .enable_dp_output = dcn10_link_encoder_enable_dp_output,
  75         .enable_dp_mst_output = dcn10_link_encoder_enable_dp_mst_output,
  76         .disable_output = dcn10_link_encoder_disable_output,
  77         .dp_set_lane_settings = dcn10_link_encoder_dp_set_lane_settings,
  78         .dp_set_phy_pattern = dcn10_link_encoder_dp_set_phy_pattern,
  79         .update_mst_stream_allocation_table =
  80                 dcn10_link_encoder_update_mst_stream_allocation_table,
  81         .psr_program_dp_dphy_fast_training =
  82                         dcn10_psr_program_dp_dphy_fast_training,
  83         .psr_program_secondary_packet = dcn10_psr_program_secondary_packet,
  84         .connect_dig_be_to_fe = dcn10_link_encoder_connect_dig_be_to_fe,
  85         .enable_hpd = dcn10_link_encoder_enable_hpd,
  86         .disable_hpd = dcn10_link_encoder_disable_hpd,
  87         .is_dig_enabled = dcn10_is_dig_enabled,
  88         .destroy = dcn10_link_encoder_destroy
  89 };
  90
  91 static enum bp_result link_transmitter_control(
  92         struct dcn10_link_encoder *enc10,
  93         struct bp_transmitter_control *cntl)
  94 {
  95         enum bp_result result;
  96         struct dc_bios *bp = enc10->base.ctx->dc_bios;
  97
  98         result = bp->funcs->transmitter_control(bp, cntl);
  99
 100         return result;
 101 }
 102
 103 static void enable_phy_bypass_mode(
 104         struct dcn10_link_encoder *enc10,
 105         bool enable)
 106 {
 107         /* This register resides in DP back end block;
 108          * transmitter is used for the offset
 109          */
 110         REG_UPDATE(DP_DPHY_CNTL, DPHY_BYPASS, enable);
 111
 112 }
 113
 114 static void disable_prbs_symbols(
 115         struct dcn10_link_encoder *enc10,
 116         bool disable)
 117 {
 118         /* This register resides in DP back end block;
 119          * transmitter is used for the offset
 120          */
 121         REG_UPDATE_4(DP_DPHY_CNTL,
 122                         DPHY_ATEST_SEL_LANE0, disable,
 123                         DPHY_ATEST_SEL_LANE1, disable,
 124                         DPHY_ATEST_SEL_LANE2, disable,
 125                         DPHY_ATEST_SEL_LANE3, disable);
 126 }
 127
 128 static void disable_prbs_mode(
 129         struct dcn10_link_encoder *enc10)
 130 {
 131         REG_UPDATE(DP_DPHY_PRBS_CNTL, DPHY_PRBS_EN, 0);
 132 }
 133
 134 static void program_pattern_symbols(
 135         struct dcn10_link_encoder *enc10,
 136         uint16_t pattern_symbols[8])
 137 {
 138         /* This register resides in DP back end block;
 139          * transmitter is used for the offset
 140          */
 141         REG_SET_3(DP_DPHY_SYM0, 0,
 142                         DPHY_SYM1, pattern_symbols[0],
 143                         DPHY_SYM2, pattern_symbols[1],
 144                         DPHY_SYM3, pattern_symbols[2]);
 145
 146         /* This register resides in DP back end block;
 147          * transmitter is used for the offset
 148          */
 149         REG_SET_3(DP_DPHY_SYM1, 0,
 150                         DPHY_SYM4, pattern_symbols[3],
 151                         DPHY_SYM5, pattern_symbols[4],
 152                         DPHY_SYM6, pattern_symbols[5]);
 153
 154         /* This register resides in DP back end block;
 155          * transmitter is used for the offset
 156          */
 157         REG_SET_2(DP_DPHY_SYM2, 0,
 158                         DPHY_SYM7, pattern_symbols[6],
 159                         DPHY_SYM8, pattern_symbols[7]);
 160 }
 161
 162 static void set_dp_phy_pattern_d102(
 163         struct dcn10_link_encoder *enc10)
 164 {
 165         /* Disable PHY Bypass mode to setup the test pattern */
 166         enable_phy_bypass_mode(enc10, false);
 167
 168         /* For 10-bit PRBS or debug symbols
 169          * please use the following sequence:
 170          *
 171          * Enable debug symbols on the lanes
 172          */
 173         disable_prbs_symbols(enc10, true);
 174
 175         /* Disable PRBS mode */
 176         disable_prbs_mode(enc10);
 177
 178         /* Program debug symbols to be output */
 179         {
 180                 uint16_t pattern_symbols[8] = {
 181                         0x2AA, 0x2AA, 0x2AA, 0x2AA,
 182                         0x2AA, 0x2AA, 0x2AA, 0x2AA
 183                 };
 184
 185                 program_pattern_symbols(enc10, pattern_symbols);
 186         }
 187
 188         /* Enable phy bypass mode to enable the test pattern */
 189
 190         enable_phy_bypass_mode(enc10, true);
 191 }
 192
 193 static void set_link_training_complete(
 194         struct dcn10_link_encoder *enc10,
 195         bool complete)
 196 {
 197         /* This register resides in DP back end block;
 198          * transmitter is used for the offset
 199          */
 200         REG_UPDATE(DP_LINK_CNTL, DP_LINK_TRAINING_COMPLETE, complete);
 201
 202 }
 203
 204 void dcn10_link_encoder_set_dp_phy_pattern_training_pattern(
 205         struct link_encoder *enc,
 206         uint32_t index)
 207 {
 208         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 209         /* Write Training Pattern */
 210
 211         REG_WRITE(DP_DPHY_TRAINING_PATTERN_SEL, index);
 212
 213         /* Set HW Register Training Complete to false */
 214
 215         set_link_training_complete(enc10, false);
 216
 217         /* Disable PHY Bypass mode to output Training Pattern */
 218
 219         enable_phy_bypass_mode(enc10, false);
 220
 221         /* Disable PRBS mode */
 222         disable_prbs_mode(enc10);
 223 }
 224
 225 static void setup_panel_mode(
 226         struct dcn10_link_encoder *enc10,
 227         enum dp_panel_mode panel_mode)
 228 {
 229         uint32_t value;
 230
 231         ASSERT(REG(DP_DPHY_INTERNAL_CTRL));
 232         value = REG_READ(DP_DPHY_INTERNAL_CTRL);
 233
 234         switch (panel_mode) {
 235         case DP_PANEL_MODE_EDP:
 236                 value = 0x1;
 237                 break;
 238         case DP_PANEL_MODE_SPECIAL:
 239                 value = 0x11;
 240                 break;
 241         default:
 242                 value = 0x0;
 243                 break;
 244         }
 245
 246         REG_WRITE(DP_DPHY_INTERNAL_CTRL, value);
 247 }
 248
 249 static void set_dp_phy_pattern_symbol_error(
 250         struct dcn10_link_encoder *enc10)
 251 {
 252         /* Disable PHY Bypass mode to setup the test pattern */
 253         enable_phy_bypass_mode(enc10, false);
 254
 255         /* program correct panel mode*/
 256         setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT);
 257
 258         /* A PRBS23 pattern is used for most DP electrical measurements. */
 259
 260         /* Enable PRBS symbols on the lanes */
 261         disable_prbs_symbols(enc10, false);
 262
 263         /* For PRBS23 Set bit DPHY_PRBS_SEL=1 and Set bit DPHY_PRBS_EN=1 */
 264         REG_UPDATE_2(DP_DPHY_PRBS_CNTL,
 265                         DPHY_PRBS_SEL, 1,
 266                         DPHY_PRBS_EN, 1);
 267
 268         /* Enable phy bypass mode to enable the test pattern */
 269         enable_phy_bypass_mode(enc10, true);
 270 }
 271
 272 static void set_dp_phy_pattern_prbs7(
 273         struct dcn10_link_encoder *enc10)
 274 {
 275         /* Disable PHY Bypass mode to setup the test pattern */
 276         enable_phy_bypass_mode(enc10, false);
 277
 278         /* A PRBS7 pattern is used for most DP electrical measurements. */
 279
 280         /* Enable PRBS symbols on the lanes */
 281         disable_prbs_symbols(enc10, false);
 282
 283         /* For PRBS7 Set bit DPHY_PRBS_SEL=0 and Set bit DPHY_PRBS_EN=1 */
 284         REG_UPDATE_2(DP_DPHY_PRBS_CNTL,
 285                         DPHY_PRBS_SEL, 0,
 286                         DPHY_PRBS_EN, 1);
 287
 288         /* Enable phy bypass mode to enable the test pattern */
 289         enable_phy_bypass_mode(enc10, true);
 290 }
 291
 292 static void set_dp_phy_pattern_80bit_custom(
 293         struct dcn10_link_encoder *enc10,
 294         const uint8_t *pattern)
 295 {
 296         /* Disable PHY Bypass mode to setup the test pattern */
 297         enable_phy_bypass_mode(enc10, false);
 298
 299         /* Enable debug symbols on the lanes */
 300
 301         disable_prbs_symbols(enc10, true);
 302
 303         /* Enable PHY bypass mode to enable the test pattern */
 304         /* TODO is it really needed ? */
 305
 306         enable_phy_bypass_mode(enc10, true);
 307
 308         /* Program 80 bit custom pattern */
 309         {
 310                 uint16_t pattern_symbols[8];
 311
 312                 pattern_symbols[0] =
 313                         ((pattern[1] & 0x03) << 8) | pattern[0];
 314                 pattern_symbols[1] =
 315                         ((pattern[2] & 0x0f) << 6) | ((pattern[1] >> 2) & 0x3f);
 316                 pattern_symbols[2] =
 317                         ((pattern[3] & 0x3f) << 4) | ((pattern[2] >> 4) & 0x0f);
 318                 pattern_symbols[3] =
 319                         (pattern[4] << 2) | ((pattern[3] >> 6) & 0x03);
 320                 pattern_symbols[4] =
 321                         ((pattern[6] & 0x03) << 8) | pattern[5];
 322                 pattern_symbols[5] =
 323                         ((pattern[7] & 0x0f) << 6) | ((pattern[6] >> 2) & 0x3f);
 324                 pattern_symbols[6] =
 325                         ((pattern[8] & 0x3f) << 4) | ((pattern[7] >> 4) & 0x0f);
 326                 pattern_symbols[7] =
 327                         (pattern[9] << 2) | ((pattern[8] >> 6) & 0x03);
 328
 329                 program_pattern_symbols(enc10, pattern_symbols);
 330         }
 331
 332         /* Enable phy bypass mode to enable the test pattern */
 333
 334         enable_phy_bypass_mode(enc10, true);
 335 }
 336
 337 static void set_dp_phy_pattern_hbr2_compliance_cp2520_2(
 338         struct dcn10_link_encoder *enc10,
 339         unsigned int cp2520_pattern)
 340 {
 341
 342         /* previously there is a register DP_HBR2_EYE_PATTERN
 343          * that is enabled to get the pattern.
 344          * But it does not work with the latest spec change,
 345          * so we are programming the following registers manually.
 346          *
 347          * The following settings have been confirmed
 348          * by Nick Chorney and Sandra Liu
 349          */
 350
 351         /* Disable PHY Bypass mode to setup the test pattern */
 352
 353         enable_phy_bypass_mode(enc10, false);
 354
 355         /* Setup DIG encoder in DP SST mode */
 356         enc10->base.funcs->setup(&enc10->base, SIGNAL_TYPE_DISPLAY_PORT);
 357
 358         /* ensure normal panel mode. */
 359         setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT);
 360
 361         /* no vbid after BS (SR)
 362          * DP_LINK_FRAMING_CNTL changed history Sandra Liu
 363          * 11000260 / 11000104 / 110000FC
 364          */
 365         REG_UPDATE_3(DP_LINK_FRAMING_CNTL,
 366                         DP_IDLE_BS_INTERVAL, 0xFC,
 367                         DP_VBID_DISABLE, 1,
 368                         DP_VID_ENHANCED_FRAME_MODE, 1);
 369
 370         /* swap every BS with SR */
 371         REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_BS_COUNT, 0);
 372
 373         /* select cp2520 patterns */
 374         if (REG(DP_DPHY_HBR2_PATTERN_CONTROL))
 375                 REG_UPDATE(DP_DPHY_HBR2_PATTERN_CONTROL,
 376                                 DP_DPHY_HBR2_PATTERN_CONTROL, cp2520_pattern);
 377         else
 378                 /* pre-DCE11 can only generate CP2520 pattern 2 */
 379                 ASSERT(cp2520_pattern == 2);
 380
 381         /* set link training complete */
 382         set_link_training_complete(enc10, true);
 383
 384         /* disable video stream */
 385         REG_UPDATE(DP_VID_STREAM_CNTL, DP_VID_STREAM_ENABLE, 0);
 386
 387         /* Disable PHY Bypass mode to setup the test pattern */
 388         enable_phy_bypass_mode(enc10, false);
 389 }
 390
 391 static void set_dp_phy_pattern_passthrough_mode(
 392         struct dcn10_link_encoder *enc10,
 393         enum dp_panel_mode panel_mode)
 394 {
 395         /* program correct panel mode */
 396         setup_panel_mode(enc10, panel_mode);
 397
 398         /* restore LINK_FRAMING_CNTL and DPHY_SCRAMBLER_BS_COUNT
 399          * in case we were doing HBR2 compliance pattern before
 400          */
 401         REG_UPDATE_3(DP_LINK_FRAMING_CNTL,
 402                         DP_IDLE_BS_INTERVAL, 0x2000,
 403                         DP_VBID_DISABLE, 0,
 404                         DP_VID_ENHANCED_FRAME_MODE, 1);
 405
 406         REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_BS_COUNT, 0x1FF);
 407
 408         /* set link training complete */
 409         set_link_training_complete(enc10, true);
 410
 411         /* Disable PHY Bypass mode to setup the test pattern */
 412         enable_phy_bypass_mode(enc10, false);
 413
 414         /* Disable PRBS mode */
 415         disable_prbs_mode(enc10);
 416 }
 417
 418 /* return value is bit-vector */
 419 static uint8_t get_frontend_source(
 420         enum engine_id engine)
 421 {
 422         switch (engine) {
 423         case ENGINE_ID_DIGA:
 424                 return DCN10_DIG_FE_SOURCE_SELECT_DIGA;
 425         case ENGINE_ID_DIGB:
 426                 return DCN10_DIG_FE_SOURCE_SELECT_DIGB;
 427         case ENGINE_ID_DIGC:
 428                 return DCN10_DIG_FE_SOURCE_SELECT_DIGC;
 429         case ENGINE_ID_DIGD:
 430                 return DCN10_DIG_FE_SOURCE_SELECT_DIGD;
 431         case ENGINE_ID_DIGE:
 432                 return DCN10_DIG_FE_SOURCE_SELECT_DIGE;
 433         case ENGINE_ID_DIGF:
 434                 return DCN10_DIG_FE_SOURCE_SELECT_DIGF;
 435         case ENGINE_ID_DIGG:
 436                 return DCN10_DIG_FE_SOURCE_SELECT_DIGG;
 437         default:
 438                 ASSERT_CRITICAL(false);
 439                 return DCN10_DIG_FE_SOURCE_SELECT_INVALID;
 440         }
 441 }
 442
 443 void configure_encoder(
 444         struct dcn10_link_encoder *enc10,
 445         const struct dc_link_settings *link_settings)
 446 {
 447         /* set number of lanes */
 448         REG_SET(DP_CONFIG, 0,
 449                         DP_UDI_LANES, link_settings->lane_count - LANE_COUNT_ONE);
 450
 451         /* setup scrambler */
 452         REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_ADVANCE, 1);
 453 }
 454
 455 void dcn10_psr_program_dp_dphy_fast_training(struct link_encoder *enc,
 456                         bool exit_link_training_required)
 457 {
 458         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 459
 460         if (exit_link_training_required)
 461                 REG_UPDATE(DP_DPHY_FAST_TRAINING,
 462                                 DPHY_RX_FAST_TRAINING_CAPABLE, 1);
 463         else {
 464                 REG_UPDATE(DP_DPHY_FAST_TRAINING,
 465                                 DPHY_RX_FAST_TRAINING_CAPABLE, 0);
 466                 /*In DCE 11, we are able to pre-program a Force SR register
 467                  * to be able to trigger SR symbol after 5 idle patterns
 468                  * transmitted. Upon PSR Exit, DMCU can trigger
 469                  * DPHY_LOAD_BS_COUNT_START = 1. Upon writing 1 to
 470                  * DPHY_LOAD_BS_COUNT_START and the internal counter
 471                  * reaches DPHY_LOAD_BS_COUNT, the next BS symbol will be
 472                  * replaced by SR symbol once.
 473                  */
 474
 475                 REG_UPDATE(DP_DPHY_BS_SR_SWAP_CNTL, DPHY_LOAD_BS_COUNT, 0x5);
 476         }
 477 }
 478
 479 void dcn10_psr_program_secondary_packet(struct link_encoder *enc,
 480                         unsigned int sdp_transmit_line_num_deadline)
 481 {
 482         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 483
 484         REG_UPDATE_2(DP_SEC_CNTL1,
 485                 DP_SEC_GSP0_LINE_NUM, sdp_transmit_line_num_deadline,
 486                 DP_SEC_GSP0_PRIORITY, 1);
 487 }
 488
 489 bool dcn10_is_dig_enabled(struct link_encoder *enc)
 490 {
 491         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 492         uint32_t value;
 493
 494         REG_GET(DIG_BE_EN_CNTL, DIG_ENABLE, &value);
 495         return value;
 496 }
 497
 498 static void link_encoder_disable(struct dcn10_link_encoder *enc10)
 499 {
 500         /* reset training pattern */
 501         REG_SET(DP_DPHY_TRAINING_PATTERN_SEL, 0,
 502                         DPHY_TRAINING_PATTERN_SEL, 0);
 503
 504         /* reset training complete */
 505         REG_UPDATE(DP_LINK_CNTL, DP_LINK_TRAINING_COMPLETE, 0);
 506
 507         /* reset panel mode */
 508         setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT);
 509 }
 510
 511 static void hpd_initialize(
 512         struct dcn10_link_encoder *enc10)
 513 {
 514         /* Associate HPD with DIG_BE */
 515         enum hpd_source_id hpd_source = enc10->base.hpd_source;
 516
 517         REG_UPDATE(DIG_BE_CNTL, DIG_HPD_SELECT, hpd_source);
 518 }
 519
 520 bool dcn10_link_encoder_validate_dvi_output(
 521         const struct dcn10_link_encoder *enc10,
 522         enum signal_type connector_signal,
 523         enum signal_type signal,
 524         const struct dc_crtc_timing *crtc_timing)
 525 {
 526         uint32_t max_pixel_clock = TMDS_MAX_PIXEL_CLOCK;
 527
 528         if (signal == SIGNAL_TYPE_DVI_DUAL_LINK)
 529                 max_pixel_clock *= 2;
 530
 531         /* This handles the case of HDMI downgrade to DVI we don't want to
 532          * we don't want to cap the pixel clock if the DDI is not DVI.
 533          */
 534         if (connector_signal != SIGNAL_TYPE_DVI_DUAL_LINK &&
 535                         connector_signal != SIGNAL_TYPE_DVI_SINGLE_LINK)
 536                 max_pixel_clock = enc10->base.features.max_hdmi_pixel_clock;
 537
 538         /* DVI only support RGB pixel encoding */
 539         if (crtc_timing->pixel_encoding != PIXEL_ENCODING_RGB)
 540                 return false;
 541
 542         /*connect DVI via adpater's HDMI connector*/
 543         if ((connector_signal == SIGNAL_TYPE_DVI_SINGLE_LINK ||
 544                 connector_signal == SIGNAL_TYPE_HDMI_TYPE_A) &&
 545                 signal != SIGNAL_TYPE_HDMI_TYPE_A &&
 546                 crtc_timing->pix_clk_khz > TMDS_MAX_PIXEL_CLOCK)
 547                 return false;
 548         if (crtc_timing->pix_clk_khz < TMDS_MIN_PIXEL_CLOCK)
 549                 return false;
 550
 551         if (crtc_timing->pix_clk_khz > max_pixel_clock)
 552                 return false;
 553
 554         /* DVI supports 6/8bpp single-link and 10/16bpp dual-link */
 555         switch (crtc_timing->display_color_depth) {
 556         case COLOR_DEPTH_666:
 557         case COLOR_DEPTH_888:
 558         break;
 559         case COLOR_DEPTH_101010:
 560         case COLOR_DEPTH_161616:
 561                 if (signal != SIGNAL_TYPE_DVI_DUAL_LINK)
 562                         return false;
 563         break;
 564         default:
 565                 return false;
 566         }
 567
 568         return true;
 569 }
 570
 571 static bool dcn10_link_encoder_validate_hdmi_output(
 572         const struct dcn10_link_encoder *enc10,
 573         const struct dc_crtc_timing *crtc_timing,
 574         int adjusted_pix_clk_khz)
 575 {
 576         enum dc_color_depth max_deep_color =
 577                         enc10->base.features.max_hdmi_deep_color;
 578
 579         if (max_deep_color < crtc_timing->display_color_depth)
 580                 return false;
 581
 582         if (crtc_timing->display_color_depth < COLOR_DEPTH_888)
 583                 return false;
 584         if (adjusted_pix_clk_khz < TMDS_MIN_PIXEL_CLOCK)
 585                 return false;
 586
 587         if ((adjusted_pix_clk_khz == 0) ||
 588                 (adjusted_pix_clk_khz > enc10->base.features.max_hdmi_pixel_clock))
 589                 return false;
 590
 591         /* DCE11 HW does not support 420 */
 592         if (!enc10->base.features.ycbcr420_supported &&
 593                         crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
 594                 return false;
 595
 596         if (!enc10->base.features.flags.bits.HDMI_6GB_EN &&
 597                 adjusted_pix_clk_khz >= 300000)
 598                 return false;
 599         if (enc10->base.ctx->dc->debug.hdmi20_disable &&
 600                 crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
 601                 return false;
 602         return true;
 603 }
 604
 605 bool dcn10_link_encoder_validate_dp_output(
 606         const struct dcn10_link_encoder *enc10,
 607         const struct dc_crtc_timing *crtc_timing)
 608 {
 609         if (crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
 610                 return false;
 611
 612         return true;
 613 }
 614
 615 void dcn10_link_encoder_construct(
 616         struct dcn10_link_encoder *enc10,
 617         const struct encoder_init_data *init_data,
 618         const struct encoder_feature_support *enc_features,
 619         const struct dcn10_link_enc_registers *link_regs,
 620         const struct dcn10_link_enc_aux_registers *aux_regs,
 621         const struct dcn10_link_enc_hpd_registers *hpd_regs,
 622         const struct dcn10_link_enc_shift *link_shift,
 623         const struct dcn10_link_enc_mask *link_mask)
 624 {
 625         struct bp_encoder_cap_info bp_cap_info = {0};
 626         const struct dc_vbios_funcs *bp_funcs = init_data->ctx->dc_bios->funcs;
 627         enum bp_result result = BP_RESULT_OK;
 628
 629         enc10->base.funcs = &dcn10_lnk_enc_funcs;
 630         enc10->base.ctx = init_data->ctx;
 631         enc10->base.id = init_data->encoder;
 632
 633         enc10->base.hpd_source = init_data->hpd_source;
 634         enc10->base.connector = init_data->connector;
 635
 636         enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
 637
 638         enc10->base.features = *enc_features;
 639
 640         enc10->base.transmitter = init_data->transmitter;
 641
 642         /* set the flag to indicate whether driver poll the I2C data pin
 643          * while doing the DP sink detect
 644          */
 645
 646 /*      if (dal_adapter_service_is_feature_supported(as,
 647                 FEATURE_DP_SINK_DETECT_POLL_DATA_PIN))
 648                 enc10->base.features.flags.bits.
 649                         DP_SINK_DETECT_POLL_DATA_PIN = true;*/
 650
 651         enc10->base.output_signals =
 652                 SIGNAL_TYPE_DVI_SINGLE_LINK |
 653                 SIGNAL_TYPE_DVI_DUAL_LINK |
 654                 SIGNAL_TYPE_LVDS |
 655                 SIGNAL_TYPE_DISPLAY_PORT |
 656                 SIGNAL_TYPE_DISPLAY_PORT_MST |
 657                 SIGNAL_TYPE_EDP |
 658                 SIGNAL_TYPE_HDMI_TYPE_A;
 659
 660         /* For DCE 8.0 and 8.1, by design, UNIPHY is hardwired to DIG_BE.
 661          * SW always assign DIG_FE 1:1 mapped to DIG_FE for non-MST UNIPHY.
 662          * SW assign DIG_FE to non-MST UNIPHY first and MST last. So prefer
 663          * DIG is per UNIPHY and used by SST DP, eDP, HDMI, DVI and LVDS.
 664          * Prefer DIG assignment is decided by board design.
 665          * For DCE 8.0, there are only max 6 UNIPHYs, we assume board design
 666          * and VBIOS will filter out 7 UNIPHY for DCE 8.0.
 667          * By this, adding DIGG should not hurt DCE 8.0.
 668          * This will let DCE 8.1 share DCE 8.0 as much as possible
 669          */
 670
 671         enc10->link_regs = link_regs;
 672         enc10->aux_regs = aux_regs;
 673         enc10->hpd_regs = hpd_regs;
 674         enc10->link_shift = link_shift;
 675         enc10->link_mask = link_mask;
 676
 677         switch (enc10->base.transmitter) {
 678         case TRANSMITTER_UNIPHY_A:
 679                 enc10->base.preferred_engine = ENGINE_ID_DIGA;
 680         break;
 681         case TRANSMITTER_UNIPHY_B:
 682                 enc10->base.preferred_engine = ENGINE_ID_DIGB;
 683         break;
 684         case TRANSMITTER_UNIPHY_C:
 685                 enc10->base.preferred_engine = ENGINE_ID_DIGC;
 686         break;
 687         case TRANSMITTER_UNIPHY_D:
 688                 enc10->base.preferred_engine = ENGINE_ID_DIGD;
 689         break;
 690         case TRANSMITTER_UNIPHY_E:
 691                 enc10->base.preferred_engine = ENGINE_ID_DIGE;
 692         break;
 693         case TRANSMITTER_UNIPHY_F:
 694                 enc10->base.preferred_engine = ENGINE_ID_DIGF;
 695         break;
 696         case TRANSMITTER_UNIPHY_G:
 697                 enc10->base.preferred_engine = ENGINE_ID_DIGG;
 698         break;
 699         default:
 700                 ASSERT_CRITICAL(false);
 701                 enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
 702         }
 703
 704         /* default to one to mirror Windows behavior */
 705         enc10->base.features.flags.bits.HDMI_6GB_EN = 1;
 706
 707         result = bp_funcs->get_encoder_cap_info(enc10->base.ctx->dc_bios,
 708                                                 enc10->base.id, &bp_cap_info);
 709
 710         /* Override features with DCE-specific values */
 711         if (result == BP_RESULT_OK) {
 712                 enc10->base.features.flags.bits.IS_HBR2_CAPABLE =
 713                                 bp_cap_info.DP_HBR2_EN;
 714                 enc10->base.features.flags.bits.IS_HBR3_CAPABLE =
 715                                 bp_cap_info.DP_HBR3_EN;
 716                 enc10->base.features.flags.bits.HDMI_6GB_EN = bp_cap_info.HDMI_6GB_EN;
 717         } else {
 718                 DC_LOG_WARNING("%s: Failed to get encoder_cap_info from VBIOS with error code %d!\n",
 719                                 __func__,
 720                                 result);
 721         }
 722         if (enc10->base.ctx->dc->debug.hdmi20_disable) {
 723                 enc10->base.features.flags.bits.HDMI_6GB_EN = 0;
 724         }
 725 }
 726
 727 bool dcn10_link_encoder_validate_output_with_stream(
 728         struct link_encoder *enc,
 729         const struct dc_stream_state *stream)
 730 {
 731         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 732         bool is_valid;
 733
 734         switch (stream->signal) {
 735         case SIGNAL_TYPE_DVI_SINGLE_LINK:
 736         case SIGNAL_TYPE_DVI_DUAL_LINK:
 737                 is_valid = dcn10_link_encoder_validate_dvi_output(
 738                         enc10,
 739                         stream->sink->link->connector_signal,
 740                         stream->signal,
 741                         &stream->timing);
 742         break;
 743         case SIGNAL_TYPE_HDMI_TYPE_A:
 744                 is_valid = dcn10_link_encoder_validate_hdmi_output(
 745                                 enc10,
 746                                 &stream->timing,
 747                                 stream->phy_pix_clk);
 748         break;
 749         case SIGNAL_TYPE_DISPLAY_PORT:
 750         case SIGNAL_TYPE_DISPLAY_PORT_MST:
 751                 is_valid = dcn10_link_encoder_validate_dp_output(
 752                                         enc10, &stream->timing);
 753         break;
 754         case SIGNAL_TYPE_EDP:
 755                 is_valid = (stream->timing.pixel_encoding == PIXEL_ENCODING_RGB) ? true : false;
 756         break;
 757         case SIGNAL_TYPE_VIRTUAL:
 758                 is_valid = true;
 759                 break;
 760         default:
 761                 is_valid = false;
 762         break;
 763         }
 764
 765         return is_valid;
 766 }
 767
 768 void dcn10_link_encoder_hw_init(
 769         struct link_encoder *enc)
 770 {
 771         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 772         struct bp_transmitter_control cntl = { 0 };
 773         enum bp_result result;
 774
 775         cntl.action = TRANSMITTER_CONTROL_INIT;
 776         cntl.engine_id = ENGINE_ID_UNKNOWN;
 777         cntl.transmitter = enc10->base.transmitter;
 778         cntl.connector_obj_id = enc10->base.connector;
 779         cntl.lanes_number = LANE_COUNT_FOUR;
 780         cntl.coherent = false;
 781         cntl.hpd_sel = enc10->base.hpd_source;
 782
 783         if (enc10->base.connector.id == CONNECTOR_ID_EDP)
 784                 cntl.signal = SIGNAL_TYPE_EDP;
 785
 786         result = link_transmitter_control(enc10, &cntl);
 787
 788         if (result != BP_RESULT_OK) {
 789                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
 790                         __func__);
 791                 BREAK_TO_DEBUGGER();
 792                 return;
 793         }
 794
 795         if (enc10->base.connector.id == CONNECTOR_ID_LVDS) {
 796                 cntl.action = TRANSMITTER_CONTROL_BACKLIGHT_BRIGHTNESS;
 797
 798                 result = link_transmitter_control(enc10, &cntl);
 799
 800                 ASSERT(result == BP_RESULT_OK);
 801
 802         }
 803         dcn10_aux_initialize(enc10);
 804
 805         /* reinitialize HPD.
 806          * hpd_initialize() will pass DIG_FE id to HW context.
 807          * All other routine within HW context will use fe_engine_offset
 808          * as DIG_FE id even caller pass DIG_FE id.
 809          * So this routine must be called first.
 810          */
 811         hpd_initialize(enc10);
 812 }
 813
 814 void dcn10_link_encoder_destroy(struct link_encoder **enc)
 815 {
 816         kfree(TO_DCN10_LINK_ENC(*enc));
 817         *enc = NULL;
 818 }
 819
 820 void dcn10_link_encoder_setup(
 821         struct link_encoder *enc,
 822         enum signal_type signal)
 823 {
 824         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 825
 826         switch (signal) {
 827         case SIGNAL_TYPE_EDP:
 828         case SIGNAL_TYPE_DISPLAY_PORT:
 829                 /* DP SST */
 830                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 0);
 831                 break;
 832         case SIGNAL_TYPE_LVDS:
 833                 /* LVDS */
 834                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 1);
 835                 break;
 836         case SIGNAL_TYPE_DVI_SINGLE_LINK:
 837         case SIGNAL_TYPE_DVI_DUAL_LINK:
 838                 /* TMDS-DVI */
 839                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 2);
 840                 break;
 841         case SIGNAL_TYPE_HDMI_TYPE_A:
 842                 /* TMDS-HDMI */
 843                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 3);
 844                 break;
 845         case SIGNAL_TYPE_DISPLAY_PORT_MST:
 846                 /* DP MST */
 847                 REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 5);
 848                 break;
 849         default:
 850                 ASSERT_CRITICAL(false);
 851                 /* invalid mode ! */
 852                 break;
 853         }
 854
 855 }
 856
 857 /* TODO: still need depth or just pass in adjusted pixel clock? */
 858 void dcn10_link_encoder_enable_tmds_output(
 859         struct link_encoder *enc,
 860         enum clock_source_id clock_source,
 861         enum dc_color_depth color_depth,
 862         enum signal_type signal,
 863         uint32_t pixel_clock)
 864 {
 865         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 866         struct bp_transmitter_control cntl = { 0 };
 867         enum bp_result result;
 868
 869         /* Enable the PHY */
 870
 871         cntl.action = TRANSMITTER_CONTROL_ENABLE;
 872         cntl.engine_id = enc->preferred_engine;
 873         cntl.transmitter = enc10->base.transmitter;
 874         cntl.pll_id = clock_source;
 875         cntl.signal = signal;
 876         if (cntl.signal == SIGNAL_TYPE_DVI_DUAL_LINK)
 877                 cntl.lanes_number = 8;
 878         else
 879                 cntl.lanes_number = 4;
 880
 881         cntl.hpd_sel = enc10->base.hpd_source;
 882
 883         cntl.pixel_clock = pixel_clock;
 884         cntl.color_depth = color_depth;
 885
 886         result = link_transmitter_control(enc10, &cntl);
 887
 888         if (result != BP_RESULT_OK) {
 889                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
 890                         __func__);
 891                 BREAK_TO_DEBUGGER();
 892         }
 893 }
 894
 895 /* enables DP PHY output */
 896 void dcn10_link_encoder_enable_dp_output(
 897         struct link_encoder *enc,
 898         const struct dc_link_settings *link_settings,
 899         enum clock_source_id clock_source)
 900 {
 901         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 902         struct bp_transmitter_control cntl = { 0 };
 903         enum bp_result result;
 904
 905         /* Enable the PHY */
 906
 907         /* number_of_lanes is used for pixel clock adjust,
 908          * but it's not passed to asic_control.
 909          * We need to set number of lanes manually.
 910          */
 911         configure_encoder(enc10, link_settings);
 912
 913         cntl.action = TRANSMITTER_CONTROL_ENABLE;
 914         cntl.engine_id = enc->preferred_engine;
 915         cntl.transmitter = enc10->base.transmitter;
 916         cntl.pll_id = clock_source;
 917         cntl.signal = SIGNAL_TYPE_DISPLAY_PORT;
 918         cntl.lanes_number = link_settings->lane_count;
 919         cntl.hpd_sel = enc10->base.hpd_source;
 920         cntl.pixel_clock = link_settings->link_rate
 921                                                 * LINK_RATE_REF_FREQ_IN_KHZ;
 922         /* TODO: check if undefined works */
 923         cntl.color_depth = COLOR_DEPTH_UNDEFINED;
 924
 925         result = link_transmitter_control(enc10, &cntl);
 926
 927         if (result != BP_RESULT_OK) {
 928                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
 929                         __func__);
 930                 BREAK_TO_DEBUGGER();
 931         }
 932 }
 933
 934 /* enables DP PHY output in MST mode */
 935 void dcn10_link_encoder_enable_dp_mst_output(
 936         struct link_encoder *enc,
 937         const struct dc_link_settings *link_settings,
 938         enum clock_source_id clock_source)
 939 {
 940         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 941         struct bp_transmitter_control cntl = { 0 };
 942         enum bp_result result;
 943
 944         /* Enable the PHY */
 945
 946         /* number_of_lanes is used for pixel clock adjust,
 947          * but it's not passed to asic_control.
 948          * We need to set number of lanes manually.
 949          */
 950         configure_encoder(enc10, link_settings);
 951
 952         cntl.action = TRANSMITTER_CONTROL_ENABLE;
 953         cntl.engine_id = ENGINE_ID_UNKNOWN;
 954         cntl.transmitter = enc10->base.transmitter;
 955         cntl.pll_id = clock_source;
 956         cntl.signal = SIGNAL_TYPE_DISPLAY_PORT_MST;
 957         cntl.lanes_number = link_settings->lane_count;
 958         cntl.hpd_sel = enc10->base.hpd_source;
 959         cntl.pixel_clock = link_settings->link_rate
 960                                                 * LINK_RATE_REF_FREQ_IN_KHZ;
 961         /* TODO: check if undefined works */
 962         cntl.color_depth = COLOR_DEPTH_UNDEFINED;
 963
 964         result = link_transmitter_control(enc10, &cntl);
 965
 966         if (result != BP_RESULT_OK) {
 967                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
 968                         __func__);
 969                 BREAK_TO_DEBUGGER();
 970         }
 971 }
 972 /*
 973  * @brief
 974  * Disable transmitter and its encoder
 975  */
 976 void dcn10_link_encoder_disable_output(
 977         struct link_encoder *enc,
 978         enum signal_type signal)
 979 {
 980         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
 981         struct bp_transmitter_control cntl = { 0 };
 982         enum bp_result result;
 983
 984         if (!dcn10_is_dig_enabled(enc)) {
 985                 /* OF_SKIP_POWER_DOWN_INACTIVE_ENCODER */
 986         /*in DP_Alt_No_Connect case, we turn off the dig already,
 987         after excuation the PHY w/a sequence, not allow touch PHY any more*/
 988                 return;
 989         }
 990         /* Power-down RX and disable GPU PHY should be paired.
 991          * Disabling PHY without powering down RX may cause
 992          * symbol lock loss, on which we will get DP Sink interrupt.
 993          */
 994
 995         /* There is a case for the DP active dongles
 996          * where we want to disable the PHY but keep RX powered,
 997          * for those we need to ignore DP Sink interrupt
 998          * by checking lane count that has been set
 999          * on the last do_enable_output().
1000          */
1001
1002         /* disable transmitter */
1003         cntl.action = TRANSMITTER_CONTROL_DISABLE;
1004         cntl.transmitter = enc10->base.transmitter;
1005         cntl.hpd_sel = enc10->base.hpd_source;
1006         cntl.signal = signal;
1007         cntl.connector_obj_id = enc10->base.connector;
1008
1009         result = link_transmitter_control(enc10, &cntl);
1010
1011         if (result != BP_RESULT_OK) {
1012                 DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n",
1013                         __func__);
1014                 BREAK_TO_DEBUGGER();
1015                 return;
1016         }
1017
1018         /* disable encoder */
1019         if (dc_is_dp_signal(signal))
1020                 link_encoder_disable(enc10);
1021 }
1022
1023 void dcn10_link_encoder_dp_set_lane_settings(
1024         struct link_encoder *enc,
1025         const struct link_training_settings *link_settings)
1026 {
1027         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1028         union dpcd_training_lane_set training_lane_set = { { 0 } };
1029         int32_t lane = 0;
1030         struct bp_transmitter_control cntl = { 0 };
1031
1032         if (!link_settings) {
1033                 BREAK_TO_DEBUGGER();
1034                 return;
1035         }
1036
1037         cntl.action = TRANSMITTER_CONTROL_SET_VOLTAGE_AND_PREEMPASIS;
1038         cntl.transmitter = enc10->base.transmitter;
1039         cntl.connector_obj_id = enc10->base.connector;
1040         cntl.lanes_number = link_settings->link_settings.lane_count;
1041         cntl.hpd_sel = enc10->base.hpd_source;
1042         cntl.pixel_clock = link_settings->link_settings.link_rate *
1043                                                 LINK_RATE_REF_FREQ_IN_KHZ;
1044
1045         for (lane = 0; lane < link_settings->link_settings.lane_count; lane++) {
1046                 /* translate lane settings */
1047
1048                 training_lane_set.bits.VOLTAGE_SWING_SET =
1049                         link_settings->lane_settings[lane].VOLTAGE_SWING;
1050                 training_lane_set.bits.PRE_EMPHASIS_SET =
1051                         link_settings->lane_settings[lane].PRE_EMPHASIS;
1052
1053                 /* post cursor 2 setting only applies to HBR2 link rate */
1054                 if (link_settings->link_settings.link_rate == LINK_RATE_HIGH2) {
1055                         /* this is passed to VBIOS
1056                          * to program post cursor 2 level
1057                          */
1058                         training_lane_set.bits.POST_CURSOR2_SET =
1059                                 link_settings->lane_settings[lane].POST_CURSOR2;
1060                 }
1061
1062                 cntl.lane_select = lane;
1063                 cntl.lane_settings = training_lane_set.raw;
1064
1065                 /* call VBIOS table to set voltage swing and pre-emphasis */
1066                 link_transmitter_control(enc10, &cntl);
1067         }
1068 }
1069
1070 /* set DP PHY test and training patterns */
1071 void dcn10_link_encoder_dp_set_phy_pattern(
1072         struct link_encoder *enc,
1073         const struct encoder_set_dp_phy_pattern_param *param)
1074 {
1075         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1076
1077         switch (param->dp_phy_pattern) {
1078         case DP_TEST_PATTERN_TRAINING_PATTERN1:
1079                 dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 0);
1080                 break;
1081         case DP_TEST_PATTERN_TRAINING_PATTERN2:
1082                 dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 1);
1083                 break;
1084         case DP_TEST_PATTERN_TRAINING_PATTERN3:
1085                 dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 2);
1086                 break;
1087         case DP_TEST_PATTERN_TRAINING_PATTERN4:
1088                 dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 3);
1089                 break;
1090         case DP_TEST_PATTERN_D102:
1091                 set_dp_phy_pattern_d102(enc10);
1092                 break;
1093         case DP_TEST_PATTERN_SYMBOL_ERROR:
1094                 set_dp_phy_pattern_symbol_error(enc10);
1095                 break;
1096         case DP_TEST_PATTERN_PRBS7:
1097                 set_dp_phy_pattern_prbs7(enc10);
1098                 break;
1099         case DP_TEST_PATTERN_80BIT_CUSTOM:
1100                 set_dp_phy_pattern_80bit_custom(
1101                         enc10, param->custom_pattern);
1102                 break;
1103         case DP_TEST_PATTERN_CP2520_1:
1104                 set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 1);
1105                 break;
1106         case DP_TEST_PATTERN_CP2520_2:
1107                 set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 2);
1108                 break;
1109         case DP_TEST_PATTERN_CP2520_3:
1110                 set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 3);
1111                 break;
1112         case DP_TEST_PATTERN_VIDEO_MODE: {
1113                 set_dp_phy_pattern_passthrough_mode(
1114                         enc10, param->dp_panel_mode);
1115                 break;
1116         }
1117
1118         default:
1119                 /* invalid phy pattern */
1120                 ASSERT_CRITICAL(false);
1121                 break;
1122         }
1123 }
1124
1125 static void fill_stream_allocation_row_info(
1126         const struct link_mst_stream_allocation *stream_allocation,
1127         uint32_t *src,
1128         uint32_t *slots)
1129 {
1130         const struct stream_encoder *stream_enc = stream_allocation->stream_enc;
1131
1132         if (stream_enc) {
1133                 *src = stream_enc->id;
1134                 *slots = stream_allocation->slot_count;
1135         } else {
1136                 *src = 0;
1137                 *slots = 0;
1138         }
1139 }
1140
1141 /* programs DP MST VC payload allocation */
1142 void dcn10_link_encoder_update_mst_stream_allocation_table(
1143         struct link_encoder *enc,
1144         const struct link_mst_stream_allocation_table *table)
1145 {
1146         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1147         uint32_t value0 = 0;
1148         uint32_t value1 = 0;
1149         uint32_t value2 = 0;
1150         uint32_t slots = 0;
1151         uint32_t src = 0;
1152         uint32_t retries = 0;
1153
1154         /* For CZ, there are only 3 pipes. So Virtual channel is up 3.*/
1155
1156         /* --- Set MSE Stream Attribute -
1157          * Setup VC Payload Table on Tx Side,
1158          * Issue allocation change trigger
1159          * to commit payload on both tx and rx side
1160          */
1161
1162         /* we should clean-up table each time */
1163
1164         if (table->stream_count >= 1) {
1165                 fill_stream_allocation_row_info(
1166                         &table->stream_allocations[0],
1167                         &src,
1168                         &slots);
1169         } else {
1170                 src = 0;
1171                 slots = 0;
1172         }
1173
1174         REG_UPDATE_2(DP_MSE_SAT0,
1175                         DP_MSE_SAT_SRC0, src,
1176                         DP_MSE_SAT_SLOT_COUNT0, slots);
1177
1178         if (table->stream_count >= 2) {
1179                 fill_stream_allocation_row_info(
1180                         &table->stream_allocations[1],
1181                         &src,
1182                         &slots);
1183         } else {
1184                 src = 0;
1185                 slots = 0;
1186         }
1187
1188         REG_UPDATE_2(DP_MSE_SAT0,
1189                         DP_MSE_SAT_SRC1, src,
1190                         DP_MSE_SAT_SLOT_COUNT1, slots);
1191
1192         if (table->stream_count >= 3) {
1193                 fill_stream_allocation_row_info(
1194                         &table->stream_allocations[2],
1195                         &src,
1196                         &slots);
1197         } else {
1198                 src = 0;
1199                 slots = 0;
1200         }
1201
1202         REG_UPDATE_2(DP_MSE_SAT1,
1203                         DP_MSE_SAT_SRC2, src,
1204                         DP_MSE_SAT_SLOT_COUNT2, slots);
1205
1206         if (table->stream_count >= 4) {
1207                 fill_stream_allocation_row_info(
1208                         &table->stream_allocations[3],
1209                         &src,
1210                         &slots);
1211         } else {
1212                 src = 0;
1213                 slots = 0;
1214         }
1215
1216         REG_UPDATE_2(DP_MSE_SAT1,
1217                         DP_MSE_SAT_SRC3, src,
1218                         DP_MSE_SAT_SLOT_COUNT3, slots);
1219
1220         /* --- wait for transaction finish */
1221
1222         /* send allocation change trigger (ACT) ?
1223          * this step first sends the ACT,
1224          * then double buffers the SAT into the hardware
1225          * making the new allocation active on the DP MST mode link
1226          */
1227
1228         /* DP_MSE_SAT_UPDATE:
1229          * 0 - No Action
1230          * 1 - Update SAT with trigger
1231          * 2 - Update SAT without trigger
1232          */
1233         REG_UPDATE(DP_MSE_SAT_UPDATE,
1234                         DP_MSE_SAT_UPDATE, 1);
1235
1236         /* wait for update to complete
1237          * (i.e. DP_MSE_SAT_UPDATE field is reset to 0)
1238          * then wait for the transmission
1239          * of at least 16 MTP headers on immediate local link.
1240          * i.e. DP_MSE_16_MTP_KEEPOUT field (read only) is reset to 0
1241          * a value of 1 indicates that DP MST mode
1242          * is in the 16 MTP keepout region after a VC has been added.
1243          * MST stream bandwidth (VC rate) can be configured
1244          * after this bit is cleared
1245          */
1246         do {
1247                 udelay(10);
1248
1249                 value0 = REG_READ(DP_MSE_SAT_UPDATE);
1250
1251                 REG_GET(DP_MSE_SAT_UPDATE,
1252                                 DP_MSE_SAT_UPDATE, &value1);
1253
1254                 REG_GET(DP_MSE_SAT_UPDATE,
1255                                 DP_MSE_16_MTP_KEEPOUT, &value2);
1256
1257                 /* bit field DP_MSE_SAT_UPDATE is set to 1 already */
1258                 if (!value1 && !value2)
1259                         break;
1260                 ++retries;
1261         } while (retries < DP_MST_UPDATE_MAX_RETRY);
1262 }
1263
1264 void dcn10_link_encoder_connect_dig_be_to_fe(
1265         struct link_encoder *enc,
1266         enum engine_id engine,
1267         bool connect)
1268 {
1269         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1270         uint32_t field;
1271
1272         if (engine != ENGINE_ID_UNKNOWN) {
1273
1274                 REG_GET(DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, &field);
1275
1276                 if (connect)
1277                         field |= get_frontend_source(engine);
1278                 else
1279                         field &= ~get_frontend_source(engine);
1280
1281                 REG_UPDATE(DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, field);
1282         }
1283 }
1284
1285
1286 #define HPD_REG(reg)\
1287         (enc10->hpd_regs->reg)
1288
1289 #define HPD_REG_READ(reg_name) \
1290                 dm_read_reg(CTX, HPD_REG(reg_name))
1291
1292 #define HPD_REG_UPDATE_N(reg_name, n, ...)      \
1293                 generic_reg_update_ex(CTX, \
1294                                 HPD_REG(reg_name), \
1295                                 HPD_REG_READ(reg_name), \
1296                                 n, __VA_ARGS__)
1297
1298 #define HPD_REG_UPDATE(reg_name, field, val)    \
1299                 HPD_REG_UPDATE_N(reg_name, 1, \
1300                                 FN(reg_name, field), val)
1301
1302 void dcn10_link_encoder_enable_hpd(struct link_encoder *enc)
1303 {
1304         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1305
1306         HPD_REG_UPDATE(DC_HPD_CONTROL,
1307                         DC_HPD_EN, 1);
1308 }
1309
1310 void dcn10_link_encoder_disable_hpd(struct link_encoder *enc)
1311 {
1312         struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
1313
1314         HPD_REG_UPDATE(DC_HPD_CONTROL,
1315                         DC_HPD_EN, 0);
1316 }
1317
1318
1319 #define AUX_REG(reg)\
1320         (enc10->aux_regs->reg)
1321
1322 #define AUX_REG_READ(reg_name) \
1323                 dm_read_reg(CTX, AUX_REG(reg_name))
1324
1325 #define AUX_REG_UPDATE_N(reg_name, n, ...)      \
1326                 generic_reg_update_ex(CTX, \
1327                                 AUX_REG(reg_name), \
1328                                 AUX_REG_READ(reg_name), \
1329                                 n, __VA_ARGS__)
1330
1331 #define AUX_REG_UPDATE(reg_name, field, val)    \
1332                 AUX_REG_UPDATE_N(reg_name, 1, \
1333                                 FN(reg_name, field), val)
1334
1335 #define AUX_REG_UPDATE_2(reg, f1, v1, f2, v2)   \
1336                 AUX_REG_UPDATE_N(reg, 2,\
1337                                 FN(reg, f1), v1,\
1338                                 FN(reg, f2), v2)
1339
1340 void dcn10_aux_initialize(struct dcn10_link_encoder *enc10)
1341 {
1342         enum hpd_source_id hpd_source = enc10->base.hpd_source;
1343
1344         AUX_REG_UPDATE_2(AUX_CONTROL,
1345                         AUX_HPD_SEL, hpd_source,
1346                         AUX_LS_READ_EN, 0);
1347
1348         /* 1/4 window (the maximum allowed) */
1349         AUX_REG_UPDATE(AUX_DPHY_RX_CONTROL0,
1350                         AUX_RX_RECEIVE_WINDOW, 1);
1351 }