linux/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c
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   1/*
   2 * Copyright 2012-16 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 "dce_transform.h"
  27#include "reg_helper.h"
  28#include "opp.h"
  29#include "basics/conversion.h"
  30#include "dc.h"
  31
  32#define REG(reg) \
  33        (xfm_dce->regs->reg)
  34
  35#undef FN
  36#define FN(reg_name, field_name) \
  37        xfm_dce->xfm_shift->field_name, xfm_dce->xfm_mask->field_name
  38
  39#define CTX \
  40        xfm_dce->base.ctx
  41#define DC_LOGGER \
  42        xfm_dce->base.ctx->logger
  43
  44#define IDENTITY_RATIO(ratio) (dc_fixpt_u2d19(ratio) == (1 << 19))
  45#define GAMUT_MATRIX_SIZE 12
  46#define SCL_PHASES 16
  47
  48enum dcp_out_trunc_round_mode {
  49        DCP_OUT_TRUNC_ROUND_MODE_TRUNCATE,
  50        DCP_OUT_TRUNC_ROUND_MODE_ROUND
  51};
  52
  53enum dcp_out_trunc_round_depth {
  54        DCP_OUT_TRUNC_ROUND_DEPTH_14BIT,
  55        DCP_OUT_TRUNC_ROUND_DEPTH_13BIT,
  56        DCP_OUT_TRUNC_ROUND_DEPTH_12BIT,
  57        DCP_OUT_TRUNC_ROUND_DEPTH_11BIT,
  58        DCP_OUT_TRUNC_ROUND_DEPTH_10BIT,
  59        DCP_OUT_TRUNC_ROUND_DEPTH_9BIT,
  60        DCP_OUT_TRUNC_ROUND_DEPTH_8BIT
  61};
  62
  63/*  defines the various methods of bit reduction available for use */
  64enum dcp_bit_depth_reduction_mode {
  65        DCP_BIT_DEPTH_REDUCTION_MODE_DITHER,
  66        DCP_BIT_DEPTH_REDUCTION_MODE_ROUND,
  67        DCP_BIT_DEPTH_REDUCTION_MODE_TRUNCATE,
  68        DCP_BIT_DEPTH_REDUCTION_MODE_DISABLED,
  69        DCP_BIT_DEPTH_REDUCTION_MODE_INVALID
  70};
  71
  72enum dcp_spatial_dither_mode {
  73        DCP_SPATIAL_DITHER_MODE_AAAA,
  74        DCP_SPATIAL_DITHER_MODE_A_AA_A,
  75        DCP_SPATIAL_DITHER_MODE_AABBAABB,
  76        DCP_SPATIAL_DITHER_MODE_AABBCCAABBCC,
  77        DCP_SPATIAL_DITHER_MODE_INVALID
  78};
  79
  80enum dcp_spatial_dither_depth {
  81        DCP_SPATIAL_DITHER_DEPTH_30BPP,
  82        DCP_SPATIAL_DITHER_DEPTH_24BPP
  83};
  84
  85enum csc_color_mode {
  86        /* 00 - BITS2:0 Bypass */
  87        CSC_COLOR_MODE_GRAPHICS_BYPASS,
  88        /* 01 - hard coded coefficient TV RGB */
  89        CSC_COLOR_MODE_GRAPHICS_PREDEFINED,
  90        /* 04 - programmable OUTPUT CSC coefficient */
  91        CSC_COLOR_MODE_GRAPHICS_OUTPUT_CSC,
  92};
  93
  94enum grph_color_adjust_option {
  95        GRPH_COLOR_MATRIX_HW_DEFAULT = 1,
  96        GRPH_COLOR_MATRIX_SW
  97};
  98
  99static const struct out_csc_color_matrix global_color_matrix[] = {
 100{ COLOR_SPACE_SRGB,
 101        { 0x2000, 0, 0, 0, 0, 0x2000, 0, 0, 0, 0, 0x2000, 0} },
 102{ COLOR_SPACE_SRGB_LIMITED,
 103        { 0x1B60, 0, 0, 0x200, 0, 0x1B60, 0, 0x200, 0, 0, 0x1B60, 0x200} },
 104{ COLOR_SPACE_YCBCR601,
 105        { 0xE00, 0xF447, 0xFDB9, 0x1000, 0x82F, 0x1012, 0x31F, 0x200, 0xFB47,
 106                0xF6B9, 0xE00, 0x1000} },
 107{ COLOR_SPACE_YCBCR709, { 0xE00, 0xF349, 0xFEB7, 0x1000, 0x5D2, 0x1394, 0x1FA,
 108        0x200, 0xFCCB, 0xF535, 0xE00, 0x1000} },
 109/* TODO: correct values below */
 110{ COLOR_SPACE_YCBCR601_LIMITED, { 0xE00, 0xF447, 0xFDB9, 0x1000, 0x991,
 111        0x12C9, 0x3A6, 0x200, 0xFB47, 0xF6B9, 0xE00, 0x1000} },
 112{ COLOR_SPACE_YCBCR709_LIMITED, { 0xE00, 0xF349, 0xFEB7, 0x1000, 0x6CE, 0x16E3,
 113        0x24F, 0x200, 0xFCCB, 0xF535, 0xE00, 0x1000} }
 114};
 115
 116static bool setup_scaling_configuration(
 117        struct dce_transform *xfm_dce,
 118        const struct scaler_data *data)
 119{
 120        REG_SET(SCL_BYPASS_CONTROL, 0, SCL_BYPASS_MODE, 0);
 121
 122        if (data->taps.h_taps + data->taps.v_taps <= 2) {
 123                /* Set bypass */
 124                if (xfm_dce->xfm_mask->SCL_PSCL_EN != 0)
 125                        REG_UPDATE_2(SCL_MODE, SCL_MODE, 0, SCL_PSCL_EN, 0);
 126                else
 127                        REG_UPDATE(SCL_MODE, SCL_MODE, 0);
 128                return false;
 129        }
 130
 131        REG_SET_2(SCL_TAP_CONTROL, 0,
 132                        SCL_H_NUM_OF_TAPS, data->taps.h_taps - 1,
 133                        SCL_V_NUM_OF_TAPS, data->taps.v_taps - 1);
 134
 135        if (data->format <= PIXEL_FORMAT_GRPH_END)
 136                REG_UPDATE(SCL_MODE, SCL_MODE, 1);
 137        else
 138                REG_UPDATE(SCL_MODE, SCL_MODE, 2);
 139
 140        if (xfm_dce->xfm_mask->SCL_PSCL_EN != 0)
 141                REG_UPDATE(SCL_MODE, SCL_PSCL_EN, 1);
 142
 143        /* 1 - Replace out of bound pixels with edge */
 144        REG_SET(SCL_CONTROL, 0, SCL_BOUNDARY_MODE, 1);
 145
 146        return true;
 147}
 148
 149static void program_overscan(
 150                struct dce_transform *xfm_dce,
 151                const struct scaler_data *data)
 152{
 153        int overscan_right = data->h_active
 154                        - data->recout.x - data->recout.width;
 155        int overscan_bottom = data->v_active
 156                        - data->recout.y - data->recout.height;
 157
 158        if (xfm_dce->base.ctx->dc->debug.visual_confirm != VISUAL_CONFIRM_DISABLE) {
 159                overscan_bottom += 2;
 160                overscan_right += 2;
 161        }
 162
 163        if (overscan_right < 0) {
 164                BREAK_TO_DEBUGGER();
 165                overscan_right = 0;
 166        }
 167        if (overscan_bottom < 0) {
 168                BREAK_TO_DEBUGGER();
 169                overscan_bottom = 0;
 170        }
 171
 172        REG_SET_2(EXT_OVERSCAN_LEFT_RIGHT, 0,
 173                        EXT_OVERSCAN_LEFT, data->recout.x,
 174                        EXT_OVERSCAN_RIGHT, overscan_right);
 175        REG_SET_2(EXT_OVERSCAN_TOP_BOTTOM, 0,
 176                        EXT_OVERSCAN_TOP, data->recout.y,
 177                        EXT_OVERSCAN_BOTTOM, overscan_bottom);
 178}
 179
 180static void program_multi_taps_filter(
 181        struct dce_transform *xfm_dce,
 182        int taps,
 183        const uint16_t *coeffs,
 184        enum ram_filter_type filter_type)
 185{
 186        int phase, pair;
 187        int array_idx = 0;
 188        int taps_pairs = (taps + 1) / 2;
 189        int phases_to_program = SCL_PHASES / 2 + 1;
 190
 191        uint32_t power_ctl = 0;
 192
 193        if (!coeffs)
 194                return;
 195
 196        /*We need to disable power gating on coeff memory to do programming*/
 197        if (REG(DCFE_MEM_PWR_CTRL)) {
 198                power_ctl = REG_READ(DCFE_MEM_PWR_CTRL);
 199                REG_SET(DCFE_MEM_PWR_CTRL, power_ctl, SCL_COEFF_MEM_PWR_DIS, 1);
 200
 201                REG_WAIT(DCFE_MEM_PWR_STATUS, SCL_COEFF_MEM_PWR_STATE, 0, 1, 10);
 202        }
 203        for (phase = 0; phase < phases_to_program; phase++) {
 204                /*we always program N/2 + 1 phases, total phases N, but N/2-1 are just mirror
 205                phase 0 is unique and phase N/2 is unique if N is even*/
 206                for (pair = 0; pair < taps_pairs; pair++) {
 207                        uint16_t odd_coeff = 0;
 208                        uint16_t even_coeff = coeffs[array_idx];
 209
 210                        REG_SET_3(SCL_COEF_RAM_SELECT, 0,
 211                                        SCL_C_RAM_FILTER_TYPE, filter_type,
 212                                        SCL_C_RAM_PHASE, phase,
 213                                        SCL_C_RAM_TAP_PAIR_IDX, pair);
 214
 215                        if (taps % 2 && pair == taps_pairs - 1)
 216                                array_idx++;
 217                        else {
 218                                odd_coeff = coeffs[array_idx + 1];
 219                                array_idx += 2;
 220                        }
 221
 222                        REG_SET_4(SCL_COEF_RAM_TAP_DATA, 0,
 223                                        SCL_C_RAM_EVEN_TAP_COEF_EN, 1,
 224                                        SCL_C_RAM_EVEN_TAP_COEF, even_coeff,
 225                                        SCL_C_RAM_ODD_TAP_COEF_EN, 1,
 226                                        SCL_C_RAM_ODD_TAP_COEF, odd_coeff);
 227                }
 228        }
 229
 230        /*We need to restore power gating on coeff memory to initial state*/
 231        if (REG(DCFE_MEM_PWR_CTRL))
 232                REG_WRITE(DCFE_MEM_PWR_CTRL, power_ctl);
 233}
 234
 235static void program_viewport(
 236        struct dce_transform *xfm_dce,
 237        const struct rect *view_port)
 238{
 239        REG_SET_2(VIEWPORT_START, 0,
 240                        VIEWPORT_X_START, view_port->x,
 241                        VIEWPORT_Y_START, view_port->y);
 242
 243        REG_SET_2(VIEWPORT_SIZE, 0,
 244                        VIEWPORT_HEIGHT, view_port->height,
 245                        VIEWPORT_WIDTH, view_port->width);
 246
 247        /* TODO: add stereo support */
 248}
 249
 250static void calculate_inits(
 251        struct dce_transform *xfm_dce,
 252        const struct scaler_data *data,
 253        struct scl_ratios_inits *inits)
 254{
 255        struct fixed31_32 h_init;
 256        struct fixed31_32 v_init;
 257
 258        inits->h_int_scale_ratio =
 259                dc_fixpt_u2d19(data->ratios.horz) << 5;
 260        inits->v_int_scale_ratio =
 261                dc_fixpt_u2d19(data->ratios.vert) << 5;
 262
 263        h_init =
 264                dc_fixpt_div_int(
 265                        dc_fixpt_add(
 266                                data->ratios.horz,
 267                                dc_fixpt_from_int(data->taps.h_taps + 1)),
 268                                2);
 269        inits->h_init.integer = dc_fixpt_floor(h_init);
 270        inits->h_init.fraction = dc_fixpt_u0d19(h_init) << 5;
 271
 272        v_init =
 273                dc_fixpt_div_int(
 274                        dc_fixpt_add(
 275                                data->ratios.vert,
 276                                dc_fixpt_from_int(data->taps.v_taps + 1)),
 277                                2);
 278        inits->v_init.integer = dc_fixpt_floor(v_init);
 279        inits->v_init.fraction = dc_fixpt_u0d19(v_init) << 5;
 280}
 281
 282static void program_scl_ratios_inits(
 283        struct dce_transform *xfm_dce,
 284        struct scl_ratios_inits *inits)
 285{
 286
 287        REG_SET(SCL_HORZ_FILTER_SCALE_RATIO, 0,
 288                        SCL_H_SCALE_RATIO, inits->h_int_scale_ratio);
 289
 290        REG_SET(SCL_VERT_FILTER_SCALE_RATIO, 0,
 291                        SCL_V_SCALE_RATIO, inits->v_int_scale_ratio);
 292
 293        REG_SET_2(SCL_HORZ_FILTER_INIT, 0,
 294                        SCL_H_INIT_INT, inits->h_init.integer,
 295                        SCL_H_INIT_FRAC, inits->h_init.fraction);
 296
 297        REG_SET_2(SCL_VERT_FILTER_INIT, 0,
 298                        SCL_V_INIT_INT, inits->v_init.integer,
 299                        SCL_V_INIT_FRAC, inits->v_init.fraction);
 300
 301        REG_WRITE(SCL_AUTOMATIC_MODE_CONTROL, 0);
 302}
 303
 304static const uint16_t *get_filter_coeffs_16p(int taps, struct fixed31_32 ratio)
 305{
 306        if (taps == 4)
 307                return get_filter_4tap_16p(ratio);
 308        else if (taps == 3)
 309                return get_filter_3tap_16p(ratio);
 310        else if (taps == 2)
 311                return get_filter_2tap_16p();
 312        else if (taps == 1)
 313                return NULL;
 314        else {
 315                /* should never happen, bug */
 316                BREAK_TO_DEBUGGER();
 317                return NULL;
 318        }
 319}
 320
 321static void dce_transform_set_scaler(
 322        struct transform *xfm,
 323        const struct scaler_data *data)
 324{
 325        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
 326        bool is_scaling_required;
 327        bool filter_updated = false;
 328        const uint16_t *coeffs_v, *coeffs_h;
 329
 330        /*Use all three pieces of memory always*/
 331        REG_SET_2(LB_MEMORY_CTRL, 0,
 332                        LB_MEMORY_CONFIG, 0,
 333                        LB_MEMORY_SIZE, xfm_dce->lb_memory_size);
 334
 335        /* Clear SCL_F_SHARP_CONTROL value to 0 */
 336        REG_WRITE(SCL_F_SHARP_CONTROL, 0);
 337
 338        /* 1. Program overscan */
 339        program_overscan(xfm_dce, data);
 340
 341        /* 2. Program taps and configuration */
 342        is_scaling_required = setup_scaling_configuration(xfm_dce, data);
 343
 344        if (is_scaling_required) {
 345                /* 3. Calculate and program ratio, filter initialization */
 346                struct scl_ratios_inits inits = { 0 };
 347
 348                calculate_inits(xfm_dce, data, &inits);
 349
 350                program_scl_ratios_inits(xfm_dce, &inits);
 351
 352                coeffs_v = get_filter_coeffs_16p(data->taps.v_taps, data->ratios.vert);
 353                coeffs_h = get_filter_coeffs_16p(data->taps.h_taps, data->ratios.horz);
 354
 355                if (coeffs_v != xfm_dce->filter_v || coeffs_h != xfm_dce->filter_h) {
 356                        /* 4. Program vertical filters */
 357                        if (xfm_dce->filter_v == NULL)
 358                                REG_SET(SCL_VERT_FILTER_CONTROL, 0,
 359                                                SCL_V_2TAP_HARDCODE_COEF_EN, 0);
 360                        program_multi_taps_filter(
 361                                        xfm_dce,
 362                                        data->taps.v_taps,
 363                                        coeffs_v,
 364                                        FILTER_TYPE_RGB_Y_VERTICAL);
 365                        program_multi_taps_filter(
 366                                        xfm_dce,
 367                                        data->taps.v_taps,
 368                                        coeffs_v,
 369                                        FILTER_TYPE_ALPHA_VERTICAL);
 370
 371                        /* 5. Program horizontal filters */
 372                        if (xfm_dce->filter_h == NULL)
 373                                REG_SET(SCL_HORZ_FILTER_CONTROL, 0,
 374                                                SCL_H_2TAP_HARDCODE_COEF_EN, 0);
 375                        program_multi_taps_filter(
 376                                        xfm_dce,
 377                                        data->taps.h_taps,
 378                                        coeffs_h,
 379                                        FILTER_TYPE_RGB_Y_HORIZONTAL);
 380                        program_multi_taps_filter(
 381                                        xfm_dce,
 382                                        data->taps.h_taps,
 383                                        coeffs_h,
 384                                        FILTER_TYPE_ALPHA_HORIZONTAL);
 385
 386                        xfm_dce->filter_v = coeffs_v;
 387                        xfm_dce->filter_h = coeffs_h;
 388                        filter_updated = true;
 389                }
 390        }
 391
 392        /* 6. Program the viewport */
 393        program_viewport(xfm_dce, &data->viewport);
 394
 395        /* 7. Set bit to flip to new coefficient memory */
 396        if (filter_updated)
 397                REG_UPDATE(SCL_UPDATE, SCL_COEF_UPDATE_COMPLETE, 1);
 398
 399        REG_UPDATE(LB_DATA_FORMAT, ALPHA_EN, data->lb_params.alpha_en);
 400}
 401
 402/*****************************************************************************
 403 * set_clamp
 404 *
 405 * @param depth : bit depth to set the clamp to (should match denorm)
 406 *
 407 * @brief
 408 *     Programs clamp according to panel bit depth.
 409 *
 410 *******************************************************************************/
 411static void set_clamp(
 412        struct dce_transform *xfm_dce,
 413        enum dc_color_depth depth)
 414{
 415        int clamp_max = 0;
 416
 417        /* At the clamp block the data will be MSB aligned, so we set the max
 418         * clamp accordingly.
 419         * For example, the max value for 6 bits MSB aligned (14 bit bus) would
 420         * be "11 1111 0000 0000" in binary, so 0x3F00.
 421         */
 422        switch (depth) {
 423        case COLOR_DEPTH_666:
 424                /* 6bit MSB aligned on 14 bit bus '11 1111 0000 0000' */
 425                clamp_max = 0x3F00;
 426                break;
 427        case COLOR_DEPTH_888:
 428                /* 8bit MSB aligned on 14 bit bus '11 1111 1100 0000' */
 429                clamp_max = 0x3FC0;
 430                break;
 431        case COLOR_DEPTH_101010:
 432                /* 10bit MSB aligned on 14 bit bus '11 1111 1111 1100' */
 433                clamp_max = 0x3FFC;
 434                break;
 435        case COLOR_DEPTH_121212:
 436                /* 12bit MSB aligned on 14 bit bus '11 1111 1111 1111' */
 437                clamp_max = 0x3FFF;
 438                break;
 439        default:
 440                clamp_max = 0x3FC0;
 441                BREAK_TO_DEBUGGER(); /* Invalid clamp bit depth */
 442        }
 443        REG_SET_2(OUT_CLAMP_CONTROL_B_CB, 0,
 444                        OUT_CLAMP_MIN_B_CB, 0,
 445                        OUT_CLAMP_MAX_B_CB, clamp_max);
 446
 447        REG_SET_2(OUT_CLAMP_CONTROL_G_Y, 0,
 448                        OUT_CLAMP_MIN_G_Y, 0,
 449                        OUT_CLAMP_MAX_G_Y, clamp_max);
 450
 451        REG_SET_2(OUT_CLAMP_CONTROL_R_CR, 0,
 452                        OUT_CLAMP_MIN_R_CR, 0,
 453                        OUT_CLAMP_MAX_R_CR, clamp_max);
 454}
 455
 456/*******************************************************************************
 457 * set_round
 458 *
 459 * @brief
 460 *     Programs Round/Truncate
 461 *
 462 * @param [in] mode  :round or truncate
 463 * @param [in] depth :bit depth to round/truncate to
 464 OUT_ROUND_TRUNC_MODE 3:0 0xA Output data round or truncate mode
 465 POSSIBLE VALUES:
 466      00 - truncate to u0.12
 467      01 - truncate to u0.11
 468      02 - truncate to u0.10
 469      03 - truncate to u0.9
 470      04 - truncate to u0.8
 471      05 - reserved
 472      06 - truncate to u0.14
 473      07 - truncate to u0.13            set_reg_field_value(
 474                        value,
 475                        clamp_max,
 476                        OUT_CLAMP_CONTROL_R_CR,
 477                        OUT_CLAMP_MAX_R_CR);
 478      08 - round to u0.12
 479      09 - round to u0.11
 480      10 - round to u0.10
 481      11 - round to u0.9
 482      12 - round to u0.8
 483      13 - reserved
 484      14 - round to u0.14
 485      15 - round to u0.13
 486
 487 ******************************************************************************/
 488static void set_round(
 489        struct dce_transform *xfm_dce,
 490        enum dcp_out_trunc_round_mode mode,
 491        enum dcp_out_trunc_round_depth depth)
 492{
 493        int depth_bits = 0;
 494        int mode_bit = 0;
 495
 496        /*  set up bit depth */
 497        switch (depth) {
 498        case DCP_OUT_TRUNC_ROUND_DEPTH_14BIT:
 499                depth_bits = 6;
 500                break;
 501        case DCP_OUT_TRUNC_ROUND_DEPTH_13BIT:
 502                depth_bits = 7;
 503                break;
 504        case DCP_OUT_TRUNC_ROUND_DEPTH_12BIT:
 505                depth_bits = 0;
 506                break;
 507        case DCP_OUT_TRUNC_ROUND_DEPTH_11BIT:
 508                depth_bits = 1;
 509                break;
 510        case DCP_OUT_TRUNC_ROUND_DEPTH_10BIT:
 511                depth_bits = 2;
 512                break;
 513        case DCP_OUT_TRUNC_ROUND_DEPTH_9BIT:
 514                depth_bits = 3;
 515                break;
 516        case DCP_OUT_TRUNC_ROUND_DEPTH_8BIT:
 517                depth_bits = 4;
 518                break;
 519        default:
 520                depth_bits = 4;
 521                BREAK_TO_DEBUGGER(); /* Invalid dcp_out_trunc_round_depth */
 522        }
 523
 524        /*  set up round or truncate */
 525        switch (mode) {
 526        case DCP_OUT_TRUNC_ROUND_MODE_TRUNCATE:
 527                mode_bit = 0;
 528                break;
 529        case DCP_OUT_TRUNC_ROUND_MODE_ROUND:
 530                mode_bit = 1;
 531                break;
 532        default:
 533                BREAK_TO_DEBUGGER(); /* Invalid dcp_out_trunc_round_mode */
 534        }
 535
 536        depth_bits |= mode_bit << 3;
 537
 538        REG_SET(OUT_ROUND_CONTROL, 0, OUT_ROUND_TRUNC_MODE, depth_bits);
 539}
 540
 541/*****************************************************************************
 542 * set_dither
 543 *
 544 * @brief
 545 *     Programs Dither
 546 *
 547 * @param [in] dither_enable        : enable dither
 548 * @param [in] dither_mode           : dither mode to set
 549 * @param [in] dither_depth          : bit depth to dither to
 550 * @param [in] frame_random_enable    : enable frame random
 551 * @param [in] rgb_random_enable      : enable rgb random
 552 * @param [in] highpass_random_enable : enable highpass random
 553 *
 554 ******************************************************************************/
 555
 556static void set_dither(
 557        struct dce_transform *xfm_dce,
 558        bool dither_enable,
 559        enum dcp_spatial_dither_mode dither_mode,
 560        enum dcp_spatial_dither_depth dither_depth,
 561        bool frame_random_enable,
 562        bool rgb_random_enable,
 563        bool highpass_random_enable)
 564{
 565        int dither_depth_bits = 0;
 566        int dither_mode_bits = 0;
 567
 568        switch (dither_mode) {
 569        case DCP_SPATIAL_DITHER_MODE_AAAA:
 570                dither_mode_bits = 0;
 571                break;
 572        case DCP_SPATIAL_DITHER_MODE_A_AA_A:
 573                dither_mode_bits = 1;
 574                break;
 575        case DCP_SPATIAL_DITHER_MODE_AABBAABB:
 576                dither_mode_bits = 2;
 577                break;
 578        case DCP_SPATIAL_DITHER_MODE_AABBCCAABBCC:
 579                dither_mode_bits = 3;
 580                break;
 581        default:
 582                /* Invalid dcp_spatial_dither_mode */
 583                BREAK_TO_DEBUGGER();
 584        }
 585
 586        switch (dither_depth) {
 587        case DCP_SPATIAL_DITHER_DEPTH_30BPP:
 588                dither_depth_bits = 0;
 589                break;
 590        case DCP_SPATIAL_DITHER_DEPTH_24BPP:
 591                dither_depth_bits = 1;
 592                break;
 593        default:
 594                /* Invalid dcp_spatial_dither_depth */
 595                BREAK_TO_DEBUGGER();
 596        }
 597
 598        /*  write the register */
 599        REG_SET_6(DCP_SPATIAL_DITHER_CNTL, 0,
 600                        DCP_SPATIAL_DITHER_EN, dither_enable,
 601                        DCP_SPATIAL_DITHER_MODE, dither_mode_bits,
 602                        DCP_SPATIAL_DITHER_DEPTH, dither_depth_bits,
 603                        DCP_FRAME_RANDOM_ENABLE, frame_random_enable,
 604                        DCP_RGB_RANDOM_ENABLE, rgb_random_enable,
 605                        DCP_HIGHPASS_RANDOM_ENABLE, highpass_random_enable);
 606}
 607
 608/*****************************************************************************
 609 * dce_transform_bit_depth_reduction_program
 610 *
 611 * @brief
 612 *     Programs the DCP bit depth reduction registers (Clamp, Round/Truncate,
 613 *      Dither) for dce
 614 *
 615 * @param depth : bit depth to set the clamp to (should match denorm)
 616 *
 617 ******************************************************************************/
 618static void program_bit_depth_reduction(
 619        struct dce_transform *xfm_dce,
 620        enum dc_color_depth depth,
 621        const struct bit_depth_reduction_params *bit_depth_params)
 622{
 623        enum dcp_out_trunc_round_depth trunc_round_depth;
 624        enum dcp_out_trunc_round_mode trunc_mode;
 625        bool spatial_dither_enable;
 626
 627        ASSERT(depth < COLOR_DEPTH_121212); /* Invalid clamp bit depth */
 628
 629        spatial_dither_enable = bit_depth_params->flags.SPATIAL_DITHER_ENABLED;
 630        /* Default to 12 bit truncation without rounding */
 631        trunc_round_depth = DCP_OUT_TRUNC_ROUND_DEPTH_12BIT;
 632        trunc_mode = DCP_OUT_TRUNC_ROUND_MODE_TRUNCATE;
 633
 634        if (bit_depth_params->flags.TRUNCATE_ENABLED) {
 635                /* Don't enable dithering if truncation is enabled */
 636                spatial_dither_enable = false;
 637                trunc_mode = bit_depth_params->flags.TRUNCATE_MODE ?
 638                             DCP_OUT_TRUNC_ROUND_MODE_ROUND :
 639                             DCP_OUT_TRUNC_ROUND_MODE_TRUNCATE;
 640
 641                if (bit_depth_params->flags.TRUNCATE_DEPTH == 0 ||
 642                    bit_depth_params->flags.TRUNCATE_DEPTH == 1)
 643                        trunc_round_depth = DCP_OUT_TRUNC_ROUND_DEPTH_8BIT;
 644                else if (bit_depth_params->flags.TRUNCATE_DEPTH == 2)
 645                        trunc_round_depth = DCP_OUT_TRUNC_ROUND_DEPTH_10BIT;
 646                else {
 647                        /*
 648                         * Invalid truncate/round depth. Setting here to 12bit
 649                         * to prevent use-before-initialize errors.
 650                         */
 651                        trunc_round_depth = DCP_OUT_TRUNC_ROUND_DEPTH_12BIT;
 652                        BREAK_TO_DEBUGGER();
 653                }
 654        }
 655
 656        set_clamp(xfm_dce, depth);
 657        set_round(xfm_dce, trunc_mode, trunc_round_depth);
 658        set_dither(xfm_dce,
 659                   spatial_dither_enable,
 660                   DCP_SPATIAL_DITHER_MODE_A_AA_A,
 661                   DCP_SPATIAL_DITHER_DEPTH_30BPP,
 662                   bit_depth_params->flags.FRAME_RANDOM,
 663                   bit_depth_params->flags.RGB_RANDOM,
 664                   bit_depth_params->flags.HIGHPASS_RANDOM);
 665}
 666
 667static int dce_transform_get_max_num_of_supported_lines(
 668        struct dce_transform *xfm_dce,
 669        enum lb_pixel_depth depth,
 670        int pixel_width)
 671{
 672        int pixels_per_entries = 0;
 673        int max_pixels_supports = 0;
 674
 675        ASSERT(pixel_width);
 676
 677        /* Find number of pixels that can fit into a single LB entry and
 678         * take floor of the value since we cannot store a single pixel
 679         * across multiple entries. */
 680        switch (depth) {
 681        case LB_PIXEL_DEPTH_18BPP:
 682                pixels_per_entries = xfm_dce->lb_bits_per_entry / 18;
 683                break;
 684
 685        case LB_PIXEL_DEPTH_24BPP:
 686                pixels_per_entries = xfm_dce->lb_bits_per_entry / 24;
 687                break;
 688
 689        case LB_PIXEL_DEPTH_30BPP:
 690                pixels_per_entries = xfm_dce->lb_bits_per_entry / 30;
 691                break;
 692
 693        case LB_PIXEL_DEPTH_36BPP:
 694                pixels_per_entries = xfm_dce->lb_bits_per_entry / 36;
 695                break;
 696
 697        default:
 698                DC_LOG_WARNING("%s: Invalid LB pixel depth",
 699                        __func__);
 700                BREAK_TO_DEBUGGER();
 701                break;
 702        }
 703
 704        ASSERT(pixels_per_entries);
 705
 706        max_pixels_supports =
 707                        pixels_per_entries *
 708                        xfm_dce->lb_memory_size;
 709
 710        return (max_pixels_supports / pixel_width);
 711}
 712
 713static void set_denormalization(
 714        struct dce_transform *xfm_dce,
 715        enum dc_color_depth depth)
 716{
 717        int denorm_mode = 0;
 718
 719        switch (depth) {
 720        case COLOR_DEPTH_666:
 721                /* 63/64 for 6 bit output color depth */
 722                denorm_mode = 1;
 723                break;
 724        case COLOR_DEPTH_888:
 725                /* Unity for 8 bit output color depth
 726                 * because prescale is disabled by default */
 727                denorm_mode = 0;
 728                break;
 729        case COLOR_DEPTH_101010:
 730                /* 1023/1024 for 10 bit output color depth */
 731                denorm_mode = 3;
 732                break;
 733        case COLOR_DEPTH_121212:
 734                /* 4095/4096 for 12 bit output color depth */
 735                denorm_mode = 5;
 736                break;
 737        case COLOR_DEPTH_141414:
 738        case COLOR_DEPTH_161616:
 739        default:
 740                /* not valid used case! */
 741                break;
 742        }
 743
 744        REG_SET(DENORM_CONTROL, 0, DENORM_MODE, denorm_mode);
 745}
 746
 747static void dce_transform_set_pixel_storage_depth(
 748        struct transform *xfm,
 749        enum lb_pixel_depth depth,
 750        const struct bit_depth_reduction_params *bit_depth_params)
 751{
 752        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
 753        int pixel_depth, expan_mode;
 754        enum dc_color_depth color_depth;
 755
 756        switch (depth) {
 757        case LB_PIXEL_DEPTH_18BPP:
 758                color_depth = COLOR_DEPTH_666;
 759                pixel_depth = 2;
 760                expan_mode  = 1;
 761                break;
 762        case LB_PIXEL_DEPTH_24BPP:
 763                color_depth = COLOR_DEPTH_888;
 764                pixel_depth = 1;
 765                expan_mode  = 1;
 766                break;
 767        case LB_PIXEL_DEPTH_30BPP:
 768                color_depth = COLOR_DEPTH_101010;
 769                pixel_depth = 0;
 770                expan_mode  = 1;
 771                break;
 772        case LB_PIXEL_DEPTH_36BPP:
 773                color_depth = COLOR_DEPTH_121212;
 774                pixel_depth = 3;
 775                expan_mode  = 0;
 776                break;
 777        default:
 778                color_depth = COLOR_DEPTH_101010;
 779                pixel_depth = 0;
 780                expan_mode  = 1;
 781                BREAK_TO_DEBUGGER();
 782                break;
 783        }
 784
 785        set_denormalization(xfm_dce, color_depth);
 786        program_bit_depth_reduction(xfm_dce, color_depth, bit_depth_params);
 787
 788        REG_UPDATE_2(LB_DATA_FORMAT,
 789                        PIXEL_DEPTH, pixel_depth,
 790                        PIXEL_EXPAN_MODE, expan_mode);
 791
 792        if (!(xfm_dce->lb_pixel_depth_supported & depth)) {
 793                /*we should use unsupported capabilities
 794                 *  unless it is required by w/a*/
 795                DC_LOG_WARNING("%s: Capability not supported",
 796                        __func__);
 797        }
 798}
 799
 800static void program_gamut_remap(
 801        struct dce_transform *xfm_dce,
 802        const uint16_t *reg_val)
 803{
 804        if (reg_val) {
 805                REG_SET_2(GAMUT_REMAP_C11_C12, 0,
 806                                GAMUT_REMAP_C11, reg_val[0],
 807                                GAMUT_REMAP_C12, reg_val[1]);
 808                REG_SET_2(GAMUT_REMAP_C13_C14, 0,
 809                                GAMUT_REMAP_C13, reg_val[2],
 810                                GAMUT_REMAP_C14, reg_val[3]);
 811                REG_SET_2(GAMUT_REMAP_C21_C22, 0,
 812                                GAMUT_REMAP_C21, reg_val[4],
 813                                GAMUT_REMAP_C22, reg_val[5]);
 814                REG_SET_2(GAMUT_REMAP_C23_C24, 0,
 815                                GAMUT_REMAP_C23, reg_val[6],
 816                                GAMUT_REMAP_C24, reg_val[7]);
 817                REG_SET_2(GAMUT_REMAP_C31_C32, 0,
 818                                GAMUT_REMAP_C31, reg_val[8],
 819                                GAMUT_REMAP_C32, reg_val[9]);
 820                REG_SET_2(GAMUT_REMAP_C33_C34, 0,
 821                                GAMUT_REMAP_C33, reg_val[10],
 822                                GAMUT_REMAP_C34, reg_val[11]);
 823
 824                REG_SET(GAMUT_REMAP_CONTROL, 0, GRPH_GAMUT_REMAP_MODE, 1);
 825        } else
 826                REG_SET(GAMUT_REMAP_CONTROL, 0, GRPH_GAMUT_REMAP_MODE, 0);
 827
 828}
 829
 830/**
 831 *****************************************************************************
 832 *  Function: dal_transform_wide_gamut_set_gamut_remap
 833 *
 834 *  @param [in] const struct xfm_grph_csc_adjustment *adjust
 835 *
 836 *  @return
 837 *     void
 838 *
 839 *  @note calculate and apply color temperature adjustment to in Rgb color space
 840 *
 841 *  @see
 842 *
 843 *****************************************************************************
 844 */
 845static void dce_transform_set_gamut_remap(
 846        struct transform *xfm,
 847        const struct xfm_grph_csc_adjustment *adjust)
 848{
 849        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
 850        int i = 0;
 851
 852        if (adjust->gamut_adjust_type != GRAPHICS_GAMUT_ADJUST_TYPE_SW)
 853                /* Bypass if type is bypass or hw */
 854                program_gamut_remap(xfm_dce, NULL);
 855        else {
 856                struct fixed31_32 arr_matrix[GAMUT_MATRIX_SIZE];
 857                uint16_t arr_reg_val[GAMUT_MATRIX_SIZE];
 858
 859                for (i = 0; i < GAMUT_MATRIX_SIZE; i++)
 860                        arr_matrix[i] = adjust->temperature_matrix[i];
 861
 862                convert_float_matrix(
 863                        arr_reg_val, arr_matrix, GAMUT_MATRIX_SIZE);
 864
 865                program_gamut_remap(xfm_dce, arr_reg_val);
 866        }
 867}
 868
 869static uint32_t decide_taps(struct fixed31_32 ratio, uint32_t in_taps, bool chroma)
 870{
 871        uint32_t taps;
 872
 873        if (IDENTITY_RATIO(ratio)) {
 874                return 1;
 875        } else if (in_taps != 0) {
 876                taps = in_taps;
 877        } else {
 878                taps = 4;
 879        }
 880
 881        if (chroma) {
 882                taps /= 2;
 883                if (taps < 2)
 884                        taps = 2;
 885        }
 886
 887        return taps;
 888}
 889
 890
 891bool dce_transform_get_optimal_number_of_taps(
 892        struct transform *xfm,
 893        struct scaler_data *scl_data,
 894        const struct scaling_taps *in_taps)
 895{
 896        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
 897        int pixel_width = scl_data->viewport.width;
 898        int max_num_of_lines;
 899
 900        if (xfm_dce->prescaler_on &&
 901                        (scl_data->viewport.width > scl_data->recout.width))
 902                pixel_width = scl_data->recout.width;
 903
 904        max_num_of_lines = dce_transform_get_max_num_of_supported_lines(
 905                xfm_dce,
 906                scl_data->lb_params.depth,
 907                pixel_width);
 908
 909        /* Fail if in_taps are impossible */
 910        if (in_taps->v_taps >= max_num_of_lines)
 911                return false;
 912
 913        /*
 914         * Set taps according to this policy (in this order)
 915         * - Use 1 for no scaling
 916         * - Use input taps
 917         * - Use 4 and reduce as required by line buffer size
 918         * - Decide chroma taps if chroma is scaled
 919         *
 920         * Ignore input chroma taps. Decide based on non-chroma
 921         */
 922        scl_data->taps.h_taps = decide_taps(scl_data->ratios.horz, in_taps->h_taps, false);
 923        scl_data->taps.v_taps = decide_taps(scl_data->ratios.vert, in_taps->v_taps, false);
 924        scl_data->taps.h_taps_c = decide_taps(scl_data->ratios.horz_c, in_taps->h_taps, true);
 925        scl_data->taps.v_taps_c = decide_taps(scl_data->ratios.vert_c, in_taps->v_taps, true);
 926
 927        if (!IDENTITY_RATIO(scl_data->ratios.vert)) {
 928                /* reduce v_taps if needed but ensure we have at least two */
 929                if (in_taps->v_taps == 0
 930                                && max_num_of_lines <= scl_data->taps.v_taps
 931                                && scl_data->taps.v_taps > 1) {
 932                        scl_data->taps.v_taps = max_num_of_lines - 1;
 933                }
 934
 935                if (scl_data->taps.v_taps <= 1)
 936                        return false;
 937        }
 938
 939        if (!IDENTITY_RATIO(scl_data->ratios.vert_c)) {
 940                /* reduce chroma v_taps if needed but ensure we have at least two */
 941                if (max_num_of_lines <= scl_data->taps.v_taps_c && scl_data->taps.v_taps_c > 1) {
 942                        scl_data->taps.v_taps_c = max_num_of_lines - 1;
 943                }
 944
 945                if (scl_data->taps.v_taps_c <= 1)
 946                        return false;
 947        }
 948
 949        /* we've got valid taps */
 950        return true;
 951}
 952
 953static void dce_transform_reset(struct transform *xfm)
 954{
 955        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
 956
 957        xfm_dce->filter_h = NULL;
 958        xfm_dce->filter_v = NULL;
 959}
 960
 961static void program_color_matrix(
 962        struct dce_transform *xfm_dce,
 963        const struct out_csc_color_matrix *tbl_entry,
 964        enum grph_color_adjust_option options)
 965{
 966        {
 967                REG_SET_2(OUTPUT_CSC_C11_C12, 0,
 968                        OUTPUT_CSC_C11, tbl_entry->regval[0],
 969                        OUTPUT_CSC_C12, tbl_entry->regval[1]);
 970        }
 971        {
 972                REG_SET_2(OUTPUT_CSC_C13_C14, 0,
 973                        OUTPUT_CSC_C11, tbl_entry->regval[2],
 974                        OUTPUT_CSC_C12, tbl_entry->regval[3]);
 975        }
 976        {
 977                REG_SET_2(OUTPUT_CSC_C21_C22, 0,
 978                        OUTPUT_CSC_C11, tbl_entry->regval[4],
 979                        OUTPUT_CSC_C12, tbl_entry->regval[5]);
 980        }
 981        {
 982                REG_SET_2(OUTPUT_CSC_C23_C24, 0,
 983                        OUTPUT_CSC_C11, tbl_entry->regval[6],
 984                        OUTPUT_CSC_C12, tbl_entry->regval[7]);
 985        }
 986        {
 987                REG_SET_2(OUTPUT_CSC_C31_C32, 0,
 988                        OUTPUT_CSC_C11, tbl_entry->regval[8],
 989                        OUTPUT_CSC_C12, tbl_entry->regval[9]);
 990        }
 991        {
 992                REG_SET_2(OUTPUT_CSC_C33_C34, 0,
 993                        OUTPUT_CSC_C11, tbl_entry->regval[10],
 994                        OUTPUT_CSC_C12, tbl_entry->regval[11]);
 995        }
 996}
 997
 998static bool configure_graphics_mode(
 999        struct dce_transform *xfm_dce,
1000        enum csc_color_mode config,
1001        enum graphics_csc_adjust_type csc_adjust_type,
1002        enum dc_color_space color_space)
1003{
1004        REG_SET(OUTPUT_CSC_CONTROL, 0,
1005                OUTPUT_CSC_GRPH_MODE, 0);
1006
1007        if (csc_adjust_type == GRAPHICS_CSC_ADJUST_TYPE_SW) {
1008                if (config == CSC_COLOR_MODE_GRAPHICS_OUTPUT_CSC) {
1009                        REG_SET(OUTPUT_CSC_CONTROL, 0,
1010                                OUTPUT_CSC_GRPH_MODE, 4);
1011                } else {
1012
1013                        switch (color_space) {
1014                        case COLOR_SPACE_SRGB:
1015                                /* by pass */
1016                                REG_SET(OUTPUT_CSC_CONTROL, 0,
1017                                        OUTPUT_CSC_GRPH_MODE, 0);
1018                                break;
1019                        case COLOR_SPACE_SRGB_LIMITED:
1020                                /* TV RGB */
1021                                REG_SET(OUTPUT_CSC_CONTROL, 0,
1022                                        OUTPUT_CSC_GRPH_MODE, 1);
1023                                break;
1024                        case COLOR_SPACE_YCBCR601:
1025                        case COLOR_SPACE_YCBCR601_LIMITED:
1026                                /* YCbCr601 */
1027                                REG_SET(OUTPUT_CSC_CONTROL, 0,
1028                                        OUTPUT_CSC_GRPH_MODE, 2);
1029                                break;
1030                        case COLOR_SPACE_YCBCR709:
1031                        case COLOR_SPACE_YCBCR709_LIMITED:
1032                                /* YCbCr709 */
1033                                REG_SET(OUTPUT_CSC_CONTROL, 0,
1034                                        OUTPUT_CSC_GRPH_MODE, 3);
1035                                break;
1036                        default:
1037                                return false;
1038                        }
1039                }
1040        } else if (csc_adjust_type == GRAPHICS_CSC_ADJUST_TYPE_HW) {
1041                switch (color_space) {
1042                case COLOR_SPACE_SRGB:
1043                        /* by pass */
1044                        REG_SET(OUTPUT_CSC_CONTROL, 0,
1045                                OUTPUT_CSC_GRPH_MODE, 0);
1046                        break;
1047                        break;
1048                case COLOR_SPACE_SRGB_LIMITED:
1049                        /* TV RGB */
1050                        REG_SET(OUTPUT_CSC_CONTROL, 0,
1051                                OUTPUT_CSC_GRPH_MODE, 1);
1052                        break;
1053                case COLOR_SPACE_YCBCR601:
1054                case COLOR_SPACE_YCBCR601_LIMITED:
1055                        /* YCbCr601 */
1056                        REG_SET(OUTPUT_CSC_CONTROL, 0,
1057                                OUTPUT_CSC_GRPH_MODE, 2);
1058                        break;
1059                case COLOR_SPACE_YCBCR709:
1060                case COLOR_SPACE_YCBCR709_LIMITED:
1061                         /* YCbCr709 */
1062                        REG_SET(OUTPUT_CSC_CONTROL, 0,
1063                                OUTPUT_CSC_GRPH_MODE, 3);
1064                        break;
1065                default:
1066                        return false;
1067                }
1068
1069        } else
1070                /* by pass */
1071                REG_SET(OUTPUT_CSC_CONTROL, 0,
1072                        OUTPUT_CSC_GRPH_MODE, 0);
1073
1074        return true;
1075}
1076
1077void dce110_opp_set_csc_adjustment(
1078        struct transform *xfm,
1079        const struct out_csc_color_matrix *tbl_entry)
1080{
1081        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
1082        enum csc_color_mode config =
1083                        CSC_COLOR_MODE_GRAPHICS_OUTPUT_CSC;
1084
1085        program_color_matrix(
1086                        xfm_dce, tbl_entry, GRPH_COLOR_MATRIX_SW);
1087
1088        /*  We did everything ,now program DxOUTPUT_CSC_CONTROL */
1089        configure_graphics_mode(xfm_dce, config, GRAPHICS_CSC_ADJUST_TYPE_SW,
1090                        tbl_entry->color_space);
1091}
1092
1093void dce110_opp_set_csc_default(
1094        struct transform *xfm,
1095        const struct default_adjustment *default_adjust)
1096{
1097        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
1098        enum csc_color_mode config =
1099                        CSC_COLOR_MODE_GRAPHICS_PREDEFINED;
1100
1101        if (default_adjust->force_hw_default == false) {
1102                const struct out_csc_color_matrix *elm;
1103                /* currently parameter not in use */
1104                enum grph_color_adjust_option option =
1105                        GRPH_COLOR_MATRIX_HW_DEFAULT;
1106                uint32_t i;
1107                /*
1108                 * HW default false we program locally defined matrix
1109                 * HW default true  we use predefined hw matrix and we
1110                 * do not need to program matrix
1111                 * OEM wants the HW default via runtime parameter.
1112                 */
1113                option = GRPH_COLOR_MATRIX_SW;
1114
1115                for (i = 0; i < ARRAY_SIZE(global_color_matrix); ++i) {
1116                        elm = &global_color_matrix[i];
1117                        if (elm->color_space != default_adjust->out_color_space)
1118                                continue;
1119                        /* program the matrix with default values from this
1120                         * file */
1121                        program_color_matrix(xfm_dce, elm, option);
1122                        config = CSC_COLOR_MODE_GRAPHICS_OUTPUT_CSC;
1123                        break;
1124                }
1125        }
1126
1127        /* configure the what we programmed :
1128         * 1. Default values from this file
1129         * 2. Use hardware default from ROM_A and we do not need to program
1130         * matrix */
1131
1132        configure_graphics_mode(xfm_dce, config,
1133                default_adjust->csc_adjust_type,
1134                default_adjust->out_color_space);
1135}
1136
1137static void program_pwl(struct dce_transform *xfm_dce,
1138                        const struct pwl_params *params)
1139{
1140        int retval;
1141        uint8_t max_tries = 10;
1142        uint8_t counter = 0;
1143        uint32_t i = 0;
1144        const struct pwl_result_data *rgb = params->rgb_resulted;
1145
1146        /* Power on LUT memory */
1147        if (REG(DCFE_MEM_PWR_CTRL))
1148                REG_UPDATE(DCFE_MEM_PWR_CTRL,
1149                           DCP_REGAMMA_MEM_PWR_DIS, 1);
1150        else
1151                REG_UPDATE(DCFE_MEM_LIGHT_SLEEP_CNTL,
1152                           REGAMMA_LUT_LIGHT_SLEEP_DIS, 1);
1153
1154        while (counter < max_tries) {
1155                if (REG(DCFE_MEM_PWR_STATUS)) {
1156                        REG_GET(DCFE_MEM_PWR_STATUS,
1157                                DCP_REGAMMA_MEM_PWR_STATE,
1158                                &retval);
1159
1160                        if (retval == 0)
1161                                break;
1162                        ++counter;
1163                } else {
1164                        REG_GET(DCFE_MEM_LIGHT_SLEEP_CNTL,
1165                                REGAMMA_LUT_MEM_PWR_STATE,
1166                                &retval);
1167
1168                        if (retval == 0)
1169                                break;
1170                        ++counter;
1171                }
1172        }
1173
1174        if (counter == max_tries) {
1175                DC_LOG_WARNING("%s: regamma lut was not powered on "
1176                                "in a timely manner,"
1177                                " programming still proceeds\n",
1178                                __func__);
1179        }
1180
1181        REG_UPDATE(REGAMMA_LUT_WRITE_EN_MASK,
1182                   REGAMMA_LUT_WRITE_EN_MASK, 7);
1183
1184        REG_WRITE(REGAMMA_LUT_INDEX, 0);
1185
1186        /* Program REGAMMA_LUT_DATA */
1187        while (i != params->hw_points_num) {
1188
1189                REG_WRITE(REGAMMA_LUT_DATA, rgb->red_reg);
1190                REG_WRITE(REGAMMA_LUT_DATA, rgb->green_reg);
1191                REG_WRITE(REGAMMA_LUT_DATA, rgb->blue_reg);
1192                REG_WRITE(REGAMMA_LUT_DATA, rgb->delta_red_reg);
1193                REG_WRITE(REGAMMA_LUT_DATA, rgb->delta_green_reg);
1194                REG_WRITE(REGAMMA_LUT_DATA, rgb->delta_blue_reg);
1195
1196                ++rgb;
1197                ++i;
1198        }
1199
1200        /*  we are done with DCP LUT memory; re-enable low power mode */
1201        if (REG(DCFE_MEM_PWR_CTRL))
1202                REG_UPDATE(DCFE_MEM_PWR_CTRL,
1203                           DCP_REGAMMA_MEM_PWR_DIS, 0);
1204        else
1205                REG_UPDATE(DCFE_MEM_LIGHT_SLEEP_CNTL,
1206                           REGAMMA_LUT_LIGHT_SLEEP_DIS, 0);
1207}
1208
1209static void regamma_config_regions_and_segments(struct dce_transform *xfm_dce,
1210                                                const struct pwl_params *params)
1211{
1212        const struct gamma_curve *curve;
1213
1214        REG_SET_2(REGAMMA_CNTLA_START_CNTL, 0,
1215                  REGAMMA_CNTLA_EXP_REGION_START, params->arr_points[0].custom_float_x,
1216                  REGAMMA_CNTLA_EXP_REGION_START_SEGMENT, 0);
1217
1218        REG_SET(REGAMMA_CNTLA_SLOPE_CNTL, 0,
1219                REGAMMA_CNTLA_EXP_REGION_LINEAR_SLOPE, params->arr_points[0].custom_float_slope);
1220
1221        REG_SET(REGAMMA_CNTLA_END_CNTL1, 0,
1222                REGAMMA_CNTLA_EXP_REGION_END, params->arr_points[1].custom_float_x);
1223
1224        REG_SET_2(REGAMMA_CNTLA_END_CNTL2, 0,
1225                  REGAMMA_CNTLA_EXP_REGION_END_BASE, params->arr_points[1].custom_float_y,
1226                  REGAMMA_CNTLA_EXP_REGION_END_SLOPE, params->arr_points[1].custom_float_slope);
1227
1228        curve = params->arr_curve_points;
1229
1230        REG_SET_4(REGAMMA_CNTLA_REGION_0_1, 0,
1231                  REGAMMA_CNTLA_EXP_REGION0_LUT_OFFSET, curve[0].offset,
1232                  REGAMMA_CNTLA_EXP_REGION0_NUM_SEGMENTS, curve[0].segments_num,
1233                  REGAMMA_CNTLA_EXP_REGION1_LUT_OFFSET, curve[1].offset,
1234                  REGAMMA_CNTLA_EXP_REGION1_NUM_SEGMENTS, curve[1].segments_num);
1235        curve += 2;
1236
1237        REG_SET_4(REGAMMA_CNTLA_REGION_2_3, 0,
1238                  REGAMMA_CNTLA_EXP_REGION0_LUT_OFFSET, curve[0].offset,
1239                  REGAMMA_CNTLA_EXP_REGION0_NUM_SEGMENTS, curve[0].segments_num,
1240                  REGAMMA_CNTLA_EXP_REGION1_LUT_OFFSET, curve[1].offset,
1241                  REGAMMA_CNTLA_EXP_REGION1_NUM_SEGMENTS, curve[1].segments_num);
1242        curve += 2;
1243
1244        REG_SET_4(REGAMMA_CNTLA_REGION_4_5, 0,
1245                  REGAMMA_CNTLA_EXP_REGION0_LUT_OFFSET, curve[0].offset,
1246                  REGAMMA_CNTLA_EXP_REGION0_NUM_SEGMENTS, curve[0].segments_num,
1247                  REGAMMA_CNTLA_EXP_REGION1_LUT_OFFSET, curve[1].offset,
1248                  REGAMMA_CNTLA_EXP_REGION1_NUM_SEGMENTS, curve[1].segments_num);
1249        curve += 2;
1250
1251        REG_SET_4(REGAMMA_CNTLA_REGION_6_7, 0,
1252                  REGAMMA_CNTLA_EXP_REGION0_LUT_OFFSET, curve[0].offset,
1253                  REGAMMA_CNTLA_EXP_REGION0_NUM_SEGMENTS, curve[0].segments_num,
1254                  REGAMMA_CNTLA_EXP_REGION1_LUT_OFFSET, curve[1].offset,
1255                  REGAMMA_CNTLA_EXP_REGION1_NUM_SEGMENTS, curve[1].segments_num);
1256        curve += 2;
1257
1258        REG_SET_4(REGAMMA_CNTLA_REGION_8_9, 0,
1259                  REGAMMA_CNTLA_EXP_REGION0_LUT_OFFSET, curve[0].offset,
1260                  REGAMMA_CNTLA_EXP_REGION0_NUM_SEGMENTS, curve[0].segments_num,
1261                  REGAMMA_CNTLA_EXP_REGION1_LUT_OFFSET, curve[1].offset,
1262                  REGAMMA_CNTLA_EXP_REGION1_NUM_SEGMENTS, curve[1].segments_num);
1263        curve += 2;
1264
1265        REG_SET_4(REGAMMA_CNTLA_REGION_10_11, 0,
1266                  REGAMMA_CNTLA_EXP_REGION0_LUT_OFFSET, curve[0].offset,
1267                  REGAMMA_CNTLA_EXP_REGION0_NUM_SEGMENTS, curve[0].segments_num,
1268                  REGAMMA_CNTLA_EXP_REGION1_LUT_OFFSET, curve[1].offset,
1269                  REGAMMA_CNTLA_EXP_REGION1_NUM_SEGMENTS, curve[1].segments_num);
1270        curve += 2;
1271
1272        REG_SET_4(REGAMMA_CNTLA_REGION_12_13, 0,
1273                  REGAMMA_CNTLA_EXP_REGION0_LUT_OFFSET, curve[0].offset,
1274                  REGAMMA_CNTLA_EXP_REGION0_NUM_SEGMENTS, curve[0].segments_num,
1275                  REGAMMA_CNTLA_EXP_REGION1_LUT_OFFSET, curve[1].offset,
1276                  REGAMMA_CNTLA_EXP_REGION1_NUM_SEGMENTS, curve[1].segments_num);
1277        curve += 2;
1278
1279        REG_SET_4(REGAMMA_CNTLA_REGION_14_15, 0,
1280                  REGAMMA_CNTLA_EXP_REGION0_LUT_OFFSET, curve[0].offset,
1281                  REGAMMA_CNTLA_EXP_REGION0_NUM_SEGMENTS, curve[0].segments_num,
1282                  REGAMMA_CNTLA_EXP_REGION1_LUT_OFFSET, curve[1].offset,
1283                  REGAMMA_CNTLA_EXP_REGION1_NUM_SEGMENTS, curve[1].segments_num);
1284}
1285
1286
1287
1288void dce110_opp_program_regamma_pwl(struct transform *xfm,
1289                                    const struct pwl_params *params)
1290{
1291        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
1292
1293        /* Setup regions */
1294        regamma_config_regions_and_segments(xfm_dce, params);
1295
1296        /* Program PWL */
1297        program_pwl(xfm_dce, params);
1298}
1299
1300void dce110_opp_power_on_regamma_lut(struct transform *xfm,
1301                                     bool power_on)
1302{
1303        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
1304
1305        if (REG(DCFE_MEM_PWR_CTRL))
1306                REG_UPDATE_2(DCFE_MEM_PWR_CTRL,
1307                             DCP_REGAMMA_MEM_PWR_DIS, power_on,
1308                             DCP_LUT_MEM_PWR_DIS, power_on);
1309        else
1310                REG_UPDATE_2(DCFE_MEM_LIGHT_SLEEP_CNTL,
1311                            REGAMMA_LUT_LIGHT_SLEEP_DIS, power_on,
1312                            DCP_LUT_LIGHT_SLEEP_DIS, power_on);
1313
1314}
1315
1316void dce110_opp_set_regamma_mode(struct transform *xfm,
1317                                 enum opp_regamma mode)
1318{
1319        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
1320
1321        REG_SET(REGAMMA_CONTROL, 0,
1322                GRPH_REGAMMA_MODE, mode);
1323}
1324
1325static const struct transform_funcs dce_transform_funcs = {
1326        .transform_reset = dce_transform_reset,
1327        .transform_set_scaler = dce_transform_set_scaler,
1328        .transform_set_gamut_remap = dce_transform_set_gamut_remap,
1329        .opp_set_csc_adjustment = dce110_opp_set_csc_adjustment,
1330        .opp_set_csc_default = dce110_opp_set_csc_default,
1331        .opp_power_on_regamma_lut = dce110_opp_power_on_regamma_lut,
1332        .opp_program_regamma_pwl = dce110_opp_program_regamma_pwl,
1333        .opp_set_regamma_mode = dce110_opp_set_regamma_mode,
1334        .transform_set_pixel_storage_depth = dce_transform_set_pixel_storage_depth,
1335        .transform_get_optimal_number_of_taps = dce_transform_get_optimal_number_of_taps
1336};
1337
1338/*****************************************/
1339/* Constructor, Destructor               */
1340/*****************************************/
1341
1342void dce_transform_construct(
1343        struct dce_transform *xfm_dce,
1344        struct dc_context *ctx,
1345        uint32_t inst,
1346        const struct dce_transform_registers *regs,
1347        const struct dce_transform_shift *xfm_shift,
1348        const struct dce_transform_mask *xfm_mask)
1349{
1350        xfm_dce->base.ctx = ctx;
1351
1352        xfm_dce->base.inst = inst;
1353        xfm_dce->base.funcs = &dce_transform_funcs;
1354
1355        xfm_dce->regs = regs;
1356        xfm_dce->xfm_shift = xfm_shift;
1357        xfm_dce->xfm_mask = xfm_mask;
1358
1359        xfm_dce->prescaler_on = true;
1360        xfm_dce->lb_pixel_depth_supported =
1361                        LB_PIXEL_DEPTH_18BPP |
1362                        LB_PIXEL_DEPTH_24BPP |
1363                        LB_PIXEL_DEPTH_30BPP;
1364
1365        xfm_dce->lb_bits_per_entry = LB_BITS_PER_ENTRY;
1366        xfm_dce->lb_memory_size = LB_TOTAL_NUMBER_OF_ENTRIES; /*0x6B0*/
1367}
1368