linux/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
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   1/*
   2 * Copyright 2016 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 "dm_services.h"
  27
  28#include "core_types.h"
  29
  30#include "reg_helper.h"
  31#include "dcn10_dpp.h"
  32#include "basics/conversion.h"
  33
  34
  35#define NUM_PHASES    64
  36#define HORZ_MAX_TAPS 8
  37#define VERT_MAX_TAPS 8
  38
  39#define BLACK_OFFSET_RGB_Y 0x0
  40#define BLACK_OFFSET_CBCR  0x8000
  41
  42#define REG(reg)\
  43        dpp->tf_regs->reg
  44
  45#define CTX \
  46        dpp->base.ctx
  47
  48#undef FN
  49#define FN(reg_name, field_name) \
  50        dpp->tf_shift->field_name, dpp->tf_mask->field_name
  51
  52enum dcn10_coef_filter_type_sel {
  53        SCL_COEF_LUMA_VERT_FILTER = 0,
  54        SCL_COEF_LUMA_HORZ_FILTER = 1,
  55        SCL_COEF_CHROMA_VERT_FILTER = 2,
  56        SCL_COEF_CHROMA_HORZ_FILTER = 3,
  57        SCL_COEF_ALPHA_VERT_FILTER = 4,
  58        SCL_COEF_ALPHA_HORZ_FILTER = 5
  59};
  60
  61enum dscl_autocal_mode {
  62        AUTOCAL_MODE_OFF = 0,
  63
  64        /* Autocal calculate the scaling ratio and initial phase and the
  65         * DSCL_MODE_SEL must be set to 1
  66         */
  67        AUTOCAL_MODE_AUTOSCALE = 1,
  68        /* Autocal perform auto centering without replication and the
  69         * DSCL_MODE_SEL must be set to 0
  70         */
  71        AUTOCAL_MODE_AUTOCENTER = 2,
  72        /* Autocal perform auto centering and auto replication and the
  73         * DSCL_MODE_SEL must be set to 0
  74         */
  75        AUTOCAL_MODE_AUTOREPLICATE = 3
  76};
  77
  78enum dscl_mode_sel {
  79        DSCL_MODE_SCALING_444_BYPASS = 0,
  80        DSCL_MODE_SCALING_444_RGB_ENABLE = 1,
  81        DSCL_MODE_SCALING_444_YCBCR_ENABLE = 2,
  82        DSCL_MODE_SCALING_420_YCBCR_ENABLE = 3,
  83        DSCL_MODE_SCALING_420_LUMA_BYPASS = 4,
  84        DSCL_MODE_SCALING_420_CHROMA_BYPASS = 5,
  85        DSCL_MODE_DSCL_BYPASS = 6
  86};
  87
  88static void dpp1_dscl_set_overscan(
  89        struct dcn10_dpp *dpp,
  90        const struct scaler_data *data)
  91{
  92        uint32_t left = data->recout.x;
  93        uint32_t top = data->recout.y;
  94
  95        int right = data->h_active - data->recout.x - data->recout.width;
  96        int bottom = data->v_active - data->recout.y - data->recout.height;
  97
  98        if (right < 0) {
  99                BREAK_TO_DEBUGGER();
 100                right = 0;
 101        }
 102        if (bottom < 0) {
 103                BREAK_TO_DEBUGGER();
 104                bottom = 0;
 105        }
 106
 107        REG_SET_2(DSCL_EXT_OVERSCAN_LEFT_RIGHT, 0,
 108                EXT_OVERSCAN_LEFT, left,
 109                EXT_OVERSCAN_RIGHT, right);
 110
 111        REG_SET_2(DSCL_EXT_OVERSCAN_TOP_BOTTOM, 0,
 112                EXT_OVERSCAN_BOTTOM, bottom,
 113                EXT_OVERSCAN_TOP, top);
 114}
 115
 116static void dpp1_dscl_set_otg_blank(
 117                struct dcn10_dpp *dpp, const struct scaler_data *data)
 118{
 119        uint32_t h_blank_start = data->h_active;
 120        uint32_t h_blank_end = 0;
 121        uint32_t v_blank_start = data->v_active;
 122        uint32_t v_blank_end = 0;
 123
 124        REG_SET_2(OTG_H_BLANK, 0,
 125                        OTG_H_BLANK_START, h_blank_start,
 126                        OTG_H_BLANK_END, h_blank_end);
 127
 128        REG_SET_2(OTG_V_BLANK, 0,
 129                        OTG_V_BLANK_START, v_blank_start,
 130                        OTG_V_BLANK_END, v_blank_end);
 131}
 132
 133static int dpp1_dscl_get_pixel_depth_val(enum lb_pixel_depth depth)
 134{
 135        if (depth == LB_PIXEL_DEPTH_30BPP)
 136                return 0; /* 10 bpc */
 137        else if (depth == LB_PIXEL_DEPTH_24BPP)
 138                return 1; /* 8 bpc */
 139        else if (depth == LB_PIXEL_DEPTH_18BPP)
 140                return 2; /* 6 bpc */
 141        else if (depth == LB_PIXEL_DEPTH_36BPP)
 142                return 3; /* 12 bpc */
 143        else {
 144                ASSERT(0);
 145                return -1; /* Unsupported */
 146        }
 147}
 148
 149static bool dpp1_dscl_is_video_format(enum pixel_format format)
 150{
 151        if (format >= PIXEL_FORMAT_VIDEO_BEGIN
 152                        && format <= PIXEL_FORMAT_VIDEO_END)
 153                return true;
 154        else
 155                return false;
 156}
 157
 158static bool dpp1_dscl_is_420_format(enum pixel_format format)
 159{
 160        if (format == PIXEL_FORMAT_420BPP8 ||
 161                        format == PIXEL_FORMAT_420BPP10)
 162                return true;
 163        else
 164                return false;
 165}
 166
 167static enum dscl_mode_sel dpp1_dscl_get_dscl_mode(
 168                struct dpp *dpp_base,
 169                const struct scaler_data *data,
 170                bool dbg_always_scale)
 171{
 172        const long long one = dc_fixpt_one.value;
 173
 174        if (dpp_base->caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT) {
 175                /* DSCL is processing data in fixed format */
 176                if (data->format == PIXEL_FORMAT_FP16)
 177                        return DSCL_MODE_DSCL_BYPASS;
 178        }
 179
 180        if (data->ratios.horz.value == one
 181                        && data->ratios.vert.value == one
 182                        && data->ratios.horz_c.value == one
 183                        && data->ratios.vert_c.value == one
 184                        && !dbg_always_scale)
 185                return DSCL_MODE_SCALING_444_BYPASS;
 186
 187        if (!dpp1_dscl_is_420_format(data->format)) {
 188                if (dpp1_dscl_is_video_format(data->format))
 189                        return DSCL_MODE_SCALING_444_YCBCR_ENABLE;
 190                else
 191                        return DSCL_MODE_SCALING_444_RGB_ENABLE;
 192        }
 193        if (data->ratios.horz.value == one && data->ratios.vert.value == one)
 194                return DSCL_MODE_SCALING_420_LUMA_BYPASS;
 195        if (data->ratios.horz_c.value == one && data->ratios.vert_c.value == one)
 196                return DSCL_MODE_SCALING_420_CHROMA_BYPASS;
 197
 198        return DSCL_MODE_SCALING_420_YCBCR_ENABLE;
 199}
 200
 201static void dpp1_dscl_set_lb(
 202        struct dcn10_dpp *dpp,
 203        const struct line_buffer_params *lb_params,
 204        enum lb_memory_config mem_size_config)
 205{
 206        /* LB */
 207        if (dpp->base.caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT) {
 208                /* DSCL caps: pixel data processed in fixed format */
 209                uint32_t pixel_depth = dpp1_dscl_get_pixel_depth_val(lb_params->depth);
 210                uint32_t dyn_pix_depth = lb_params->dynamic_pixel_depth;
 211
 212                REG_SET_7(LB_DATA_FORMAT, 0,
 213                        PIXEL_DEPTH, pixel_depth, /* Pixel depth stored in LB */
 214                        PIXEL_EXPAN_MODE, lb_params->pixel_expan_mode, /* Pixel expansion mode */
 215                        PIXEL_REDUCE_MODE, 1, /* Pixel reduction mode: Rounding */
 216                        DYNAMIC_PIXEL_DEPTH, dyn_pix_depth, /* Dynamic expansion pixel depth */
 217                        DITHER_EN, 0, /* Dithering enable: Disabled */
 218                        INTERLEAVE_EN, lb_params->interleave_en, /* Interleave source enable */
 219                        LB_DATA_FORMAT__ALPHA_EN, lb_params->alpha_en); /* Alpha enable */
 220        }
 221
 222        REG_SET_2(LB_MEMORY_CTRL, 0,
 223                MEMORY_CONFIG, mem_size_config,
 224                LB_MAX_PARTITIONS, 63);
 225}
 226
 227static const uint16_t *dpp1_dscl_get_filter_coeffs_64p(int taps, struct fixed31_32 ratio)
 228{
 229        if (taps == 8)
 230                return get_filter_8tap_64p(ratio);
 231        else if (taps == 7)
 232                return get_filter_7tap_64p(ratio);
 233        else if (taps == 6)
 234                return get_filter_6tap_64p(ratio);
 235        else if (taps == 5)
 236                return get_filter_5tap_64p(ratio);
 237        else if (taps == 4)
 238                return get_filter_4tap_64p(ratio);
 239        else if (taps == 3)
 240                return get_filter_3tap_64p(ratio);
 241        else if (taps == 2)
 242                return get_filter_2tap_64p();
 243        else if (taps == 1)
 244                return NULL;
 245        else {
 246                /* should never happen, bug */
 247                BREAK_TO_DEBUGGER();
 248                return NULL;
 249        }
 250}
 251
 252static void dpp1_dscl_set_scaler_filter(
 253                struct dcn10_dpp *dpp,
 254                uint32_t taps,
 255                enum dcn10_coef_filter_type_sel filter_type,
 256                const uint16_t *filter)
 257{
 258        const int tap_pairs = (taps + 1) / 2;
 259        int phase;
 260        int pair;
 261        uint16_t odd_coef, even_coef;
 262
 263        REG_SET_3(SCL_COEF_RAM_TAP_SELECT, 0,
 264                SCL_COEF_RAM_TAP_PAIR_IDX, 0,
 265                SCL_COEF_RAM_PHASE, 0,
 266                SCL_COEF_RAM_FILTER_TYPE, filter_type);
 267
 268        for (phase = 0; phase < (NUM_PHASES / 2 + 1); phase++) {
 269                for (pair = 0; pair < tap_pairs; pair++) {
 270                        even_coef = filter[phase * taps + 2 * pair];
 271                        if ((pair * 2 + 1) < taps)
 272                                odd_coef = filter[phase * taps + 2 * pair + 1];
 273                        else
 274                                odd_coef = 0;
 275
 276                        REG_SET_4(SCL_COEF_RAM_TAP_DATA, 0,
 277                                /* Even tap coefficient (bits 1:0 fixed to 0) */
 278                                SCL_COEF_RAM_EVEN_TAP_COEF, even_coef,
 279                                /* Write/read control for even coefficient */
 280                                SCL_COEF_RAM_EVEN_TAP_COEF_EN, 1,
 281                                /* Odd tap coefficient (bits 1:0 fixed to 0) */
 282                                SCL_COEF_RAM_ODD_TAP_COEF, odd_coef,
 283                                /* Write/read control for odd coefficient */
 284                                SCL_COEF_RAM_ODD_TAP_COEF_EN, 1);
 285                }
 286        }
 287
 288}
 289
 290static void dpp1_dscl_set_scl_filter(
 291                struct dcn10_dpp *dpp,
 292                const struct scaler_data *scl_data,
 293                bool chroma_coef_mode)
 294{
 295        bool h_2tap_hardcode_coef_en = false;
 296        bool v_2tap_hardcode_coef_en = false;
 297        bool h_2tap_sharp_en = false;
 298        bool v_2tap_sharp_en = false;
 299        uint32_t h_2tap_sharp_factor = scl_data->sharpness.horz;
 300        uint32_t v_2tap_sharp_factor = scl_data->sharpness.vert;
 301        bool coef_ram_current;
 302        const uint16_t *filter_h = NULL;
 303        const uint16_t *filter_v = NULL;
 304        const uint16_t *filter_h_c = NULL;
 305        const uint16_t *filter_v_c = NULL;
 306
 307        h_2tap_hardcode_coef_en = scl_data->taps.h_taps < 3
 308                                        && scl_data->taps.h_taps_c < 3
 309                && (scl_data->taps.h_taps > 1 && scl_data->taps.h_taps_c > 1);
 310        v_2tap_hardcode_coef_en = scl_data->taps.v_taps < 3
 311                                        && scl_data->taps.v_taps_c < 3
 312                && (scl_data->taps.v_taps > 1 && scl_data->taps.v_taps_c > 1);
 313
 314        h_2tap_sharp_en = h_2tap_hardcode_coef_en && h_2tap_sharp_factor != 0;
 315        v_2tap_sharp_en = v_2tap_hardcode_coef_en && v_2tap_sharp_factor != 0;
 316
 317        REG_UPDATE_6(DSCL_2TAP_CONTROL,
 318                SCL_H_2TAP_HARDCODE_COEF_EN, h_2tap_hardcode_coef_en,
 319                SCL_H_2TAP_SHARP_EN, h_2tap_sharp_en,
 320                SCL_H_2TAP_SHARP_FACTOR, h_2tap_sharp_factor,
 321                SCL_V_2TAP_HARDCODE_COEF_EN, v_2tap_hardcode_coef_en,
 322                SCL_V_2TAP_SHARP_EN, v_2tap_sharp_en,
 323                SCL_V_2TAP_SHARP_FACTOR, v_2tap_sharp_factor);
 324
 325        if (!v_2tap_hardcode_coef_en || !h_2tap_hardcode_coef_en) {
 326                bool filter_updated = false;
 327
 328                filter_h = dpp1_dscl_get_filter_coeffs_64p(
 329                                scl_data->taps.h_taps, scl_data->ratios.horz);
 330                filter_v = dpp1_dscl_get_filter_coeffs_64p(
 331                                scl_data->taps.v_taps, scl_data->ratios.vert);
 332
 333                filter_updated = (filter_h && (filter_h != dpp->filter_h))
 334                                || (filter_v && (filter_v != dpp->filter_v));
 335
 336                if (chroma_coef_mode) {
 337                        filter_h_c = dpp1_dscl_get_filter_coeffs_64p(
 338                                        scl_data->taps.h_taps_c, scl_data->ratios.horz_c);
 339                        filter_v_c = dpp1_dscl_get_filter_coeffs_64p(
 340                                        scl_data->taps.v_taps_c, scl_data->ratios.vert_c);
 341                        filter_updated = filter_updated || (filter_h_c && (filter_h_c != dpp->filter_h_c))
 342                                                        || (filter_v_c && (filter_v_c != dpp->filter_v_c));
 343                }
 344
 345                if (filter_updated) {
 346                        uint32_t scl_mode = REG_READ(SCL_MODE);
 347
 348                        if (!h_2tap_hardcode_coef_en && filter_h) {
 349                                dpp1_dscl_set_scaler_filter(
 350                                        dpp, scl_data->taps.h_taps,
 351                                        SCL_COEF_LUMA_HORZ_FILTER, filter_h);
 352                        }
 353                        dpp->filter_h = filter_h;
 354                        if (!v_2tap_hardcode_coef_en && filter_v) {
 355                                dpp1_dscl_set_scaler_filter(
 356                                        dpp, scl_data->taps.v_taps,
 357                                        SCL_COEF_LUMA_VERT_FILTER, filter_v);
 358                        }
 359                        dpp->filter_v = filter_v;
 360                        if (chroma_coef_mode) {
 361                                if (!h_2tap_hardcode_coef_en && filter_h_c) {
 362                                        dpp1_dscl_set_scaler_filter(
 363                                                dpp, scl_data->taps.h_taps_c,
 364                                                SCL_COEF_CHROMA_HORZ_FILTER, filter_h_c);
 365                                }
 366                                if (!v_2tap_hardcode_coef_en && filter_v_c) {
 367                                        dpp1_dscl_set_scaler_filter(
 368                                                dpp, scl_data->taps.v_taps_c,
 369                                                SCL_COEF_CHROMA_VERT_FILTER, filter_v_c);
 370                                }
 371                        }
 372                        dpp->filter_h_c = filter_h_c;
 373                        dpp->filter_v_c = filter_v_c;
 374
 375                        coef_ram_current = get_reg_field_value_ex(
 376                                scl_mode, dpp->tf_mask->SCL_COEF_RAM_SELECT_CURRENT,
 377                                dpp->tf_shift->SCL_COEF_RAM_SELECT_CURRENT);
 378
 379                        /* Swap coefficient RAM and set chroma coefficient mode */
 380                        REG_SET_2(SCL_MODE, scl_mode,
 381                                        SCL_COEF_RAM_SELECT, !coef_ram_current,
 382                                        SCL_CHROMA_COEF_MODE, chroma_coef_mode);
 383                }
 384        }
 385}
 386
 387static int dpp1_dscl_get_lb_depth_bpc(enum lb_pixel_depth depth)
 388{
 389        if (depth == LB_PIXEL_DEPTH_30BPP)
 390                return 10;
 391        else if (depth == LB_PIXEL_DEPTH_24BPP)
 392                return 8;
 393        else if (depth == LB_PIXEL_DEPTH_18BPP)
 394                return 6;
 395        else if (depth == LB_PIXEL_DEPTH_36BPP)
 396                return 12;
 397        else {
 398                BREAK_TO_DEBUGGER();
 399                return -1; /* Unsupported */
 400        }
 401}
 402
 403void dpp1_dscl_calc_lb_num_partitions(
 404                const struct scaler_data *scl_data,
 405                enum lb_memory_config lb_config,
 406                int *num_part_y,
 407                int *num_part_c)
 408{
 409        int lb_memory_size, lb_memory_size_c, lb_memory_size_a, num_partitions_a,
 410        lb_bpc, memory_line_size_y, memory_line_size_c, memory_line_size_a;
 411
 412        int line_size = scl_data->viewport.width < scl_data->recout.width ?
 413                        scl_data->viewport.width : scl_data->recout.width;
 414        int line_size_c = scl_data->viewport_c.width < scl_data->recout.width ?
 415                        scl_data->viewport_c.width : scl_data->recout.width;
 416
 417        if (line_size == 0)
 418                line_size = 1;
 419
 420        if (line_size_c == 0)
 421                line_size_c = 1;
 422
 423
 424        lb_bpc = dpp1_dscl_get_lb_depth_bpc(scl_data->lb_params.depth);
 425        memory_line_size_y = (line_size * lb_bpc + 71) / 72; /* +71 to ceil */
 426        memory_line_size_c = (line_size_c * lb_bpc + 71) / 72; /* +71 to ceil */
 427        memory_line_size_a = (line_size + 5) / 6; /* +5 to ceil */
 428
 429        if (lb_config == LB_MEMORY_CONFIG_1) {
 430                lb_memory_size = 816;
 431                lb_memory_size_c = 816;
 432                lb_memory_size_a = 984;
 433        } else if (lb_config == LB_MEMORY_CONFIG_2) {
 434                lb_memory_size = 1088;
 435                lb_memory_size_c = 1088;
 436                lb_memory_size_a = 1312;
 437        } else if (lb_config == LB_MEMORY_CONFIG_3) {
 438                /* 420 mode: using 3rd mem from Y, Cr and Cb */
 439                lb_memory_size = 816 + 1088 + 848 + 848 + 848;
 440                lb_memory_size_c = 816 + 1088;
 441                lb_memory_size_a = 984 + 1312 + 456;
 442        } else {
 443                lb_memory_size = 816 + 1088 + 848;
 444                lb_memory_size_c = 816 + 1088 + 848;
 445                lb_memory_size_a = 984 + 1312 + 456;
 446        }
 447        *num_part_y = lb_memory_size / memory_line_size_y;
 448        *num_part_c = lb_memory_size_c / memory_line_size_c;
 449        num_partitions_a = lb_memory_size_a / memory_line_size_a;
 450
 451        if (scl_data->lb_params.alpha_en
 452                        && (num_partitions_a < *num_part_y))
 453                *num_part_y = num_partitions_a;
 454
 455        if (*num_part_y > 64)
 456                *num_part_y = 64;
 457        if (*num_part_c > 64)
 458                *num_part_c = 64;
 459
 460}
 461
 462bool dpp1_dscl_is_lb_conf_valid(int ceil_vratio, int num_partitions, int vtaps)
 463{
 464        if (ceil_vratio > 2)
 465                return vtaps <= (num_partitions - ceil_vratio + 2);
 466        else
 467                return vtaps <= num_partitions;
 468}
 469
 470/*find first match configuration which meets the min required lb size*/
 471static enum lb_memory_config dpp1_dscl_find_lb_memory_config(struct dcn10_dpp *dpp,
 472                const struct scaler_data *scl_data)
 473{
 474        int num_part_y, num_part_c;
 475        int vtaps = scl_data->taps.v_taps;
 476        int vtaps_c = scl_data->taps.v_taps_c;
 477        int ceil_vratio = dc_fixpt_ceil(scl_data->ratios.vert);
 478        int ceil_vratio_c = dc_fixpt_ceil(scl_data->ratios.vert_c);
 479        enum lb_memory_config mem_cfg = LB_MEMORY_CONFIG_0;
 480
 481        if (dpp->base.ctx->dc->debug.use_max_lb)
 482                return mem_cfg;
 483
 484        dpp->base.caps->dscl_calc_lb_num_partitions(
 485                        scl_data, LB_MEMORY_CONFIG_1, &num_part_y, &num_part_c);
 486
 487        if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
 488                        && dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
 489                return LB_MEMORY_CONFIG_1;
 490
 491        dpp->base.caps->dscl_calc_lb_num_partitions(
 492                        scl_data, LB_MEMORY_CONFIG_2, &num_part_y, &num_part_c);
 493
 494        if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
 495                        && dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
 496                return LB_MEMORY_CONFIG_2;
 497
 498        if (scl_data->format == PIXEL_FORMAT_420BPP8
 499                        || scl_data->format == PIXEL_FORMAT_420BPP10) {
 500                dpp->base.caps->dscl_calc_lb_num_partitions(
 501                                scl_data, LB_MEMORY_CONFIG_3, &num_part_y, &num_part_c);
 502
 503                if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
 504                                && dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
 505                        return LB_MEMORY_CONFIG_3;
 506        }
 507
 508        dpp->base.caps->dscl_calc_lb_num_partitions(
 509                        scl_data, LB_MEMORY_CONFIG_0, &num_part_y, &num_part_c);
 510
 511        /*Ensure we can support the requested number of vtaps*/
 512        ASSERT(dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
 513                        && dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c));
 514
 515        return LB_MEMORY_CONFIG_0;
 516}
 517
 518void dpp1_dscl_set_scaler_auto_scale(
 519        struct dpp *dpp_base,
 520        const struct scaler_data *scl_data)
 521{
 522        enum lb_memory_config lb_config;
 523        struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
 524        enum dscl_mode_sel dscl_mode = dpp1_dscl_get_dscl_mode(
 525                        dpp_base, scl_data, dpp_base->ctx->dc->debug.always_scale);
 526        bool ycbcr = scl_data->format >= PIXEL_FORMAT_VIDEO_BEGIN
 527                                && scl_data->format <= PIXEL_FORMAT_VIDEO_END;
 528
 529        dpp1_dscl_set_overscan(dpp, scl_data);
 530
 531        dpp1_dscl_set_otg_blank(dpp, scl_data);
 532
 533        REG_UPDATE(SCL_MODE, DSCL_MODE, dscl_mode);
 534
 535        if (dscl_mode == DSCL_MODE_DSCL_BYPASS)
 536                return;
 537
 538        lb_config =  dpp1_dscl_find_lb_memory_config(dpp, scl_data);
 539        dpp1_dscl_set_lb(dpp, &scl_data->lb_params, lb_config);
 540
 541        if (dscl_mode == DSCL_MODE_SCALING_444_BYPASS)
 542                return;
 543
 544        /* TODO: v_min */
 545        REG_SET_3(DSCL_AUTOCAL, 0,
 546                AUTOCAL_MODE, AUTOCAL_MODE_AUTOSCALE,
 547                AUTOCAL_NUM_PIPE, 0,
 548                AUTOCAL_PIPE_ID, 0);
 549
 550        /* Black offsets */
 551        if (ycbcr)
 552                REG_SET_2(SCL_BLACK_OFFSET, 0,
 553                                SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
 554                                SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_CBCR);
 555        else
 556
 557                REG_SET_2(SCL_BLACK_OFFSET, 0,
 558                                SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
 559                                SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_RGB_Y);
 560
 561        REG_SET_4(SCL_TAP_CONTROL, 0,
 562                SCL_V_NUM_TAPS, scl_data->taps.v_taps - 1,
 563                SCL_H_NUM_TAPS, scl_data->taps.h_taps - 1,
 564                SCL_V_NUM_TAPS_C, scl_data->taps.v_taps_c - 1,
 565                SCL_H_NUM_TAPS_C, scl_data->taps.h_taps_c - 1);
 566
 567        dpp1_dscl_set_scl_filter(dpp, scl_data, ycbcr);
 568}
 569
 570
 571static void dpp1_dscl_set_manual_ratio_init(
 572                struct dcn10_dpp *dpp, const struct scaler_data *data)
 573{
 574        uint32_t init_frac = 0;
 575        uint32_t init_int = 0;
 576
 577        REG_SET(SCL_HORZ_FILTER_SCALE_RATIO, 0,
 578                        SCL_H_SCALE_RATIO, dc_fixpt_u3d19(data->ratios.horz) << 5);
 579
 580        REG_SET(SCL_VERT_FILTER_SCALE_RATIO, 0,
 581                        SCL_V_SCALE_RATIO, dc_fixpt_u3d19(data->ratios.vert) << 5);
 582
 583        REG_SET(SCL_HORZ_FILTER_SCALE_RATIO_C, 0,
 584                        SCL_H_SCALE_RATIO_C, dc_fixpt_u3d19(data->ratios.horz_c) << 5);
 585
 586        REG_SET(SCL_VERT_FILTER_SCALE_RATIO_C, 0,
 587                        SCL_V_SCALE_RATIO_C, dc_fixpt_u3d19(data->ratios.vert_c) << 5);
 588
 589        /*
 590         * 0.24 format for fraction, first five bits zeroed
 591         */
 592        init_frac = dc_fixpt_u0d19(data->inits.h) << 5;
 593        init_int = dc_fixpt_floor(data->inits.h);
 594        REG_SET_2(SCL_HORZ_FILTER_INIT, 0,
 595                SCL_H_INIT_FRAC, init_frac,
 596                SCL_H_INIT_INT, init_int);
 597
 598        init_frac = dc_fixpt_u0d19(data->inits.h_c) << 5;
 599        init_int = dc_fixpt_floor(data->inits.h_c);
 600        REG_SET_2(SCL_HORZ_FILTER_INIT_C, 0,
 601                SCL_H_INIT_FRAC_C, init_frac,
 602                SCL_H_INIT_INT_C, init_int);
 603
 604        init_frac = dc_fixpt_u0d19(data->inits.v) << 5;
 605        init_int = dc_fixpt_floor(data->inits.v);
 606        REG_SET_2(SCL_VERT_FILTER_INIT, 0,
 607                SCL_V_INIT_FRAC, init_frac,
 608                SCL_V_INIT_INT, init_int);
 609
 610        if (REG(SCL_VERT_FILTER_INIT_BOT)) {
 611                init_frac = dc_fixpt_u0d19(data->inits.v_bot) << 5;
 612                init_int = dc_fixpt_floor(data->inits.v_bot);
 613                REG_SET_2(SCL_VERT_FILTER_INIT_BOT, 0,
 614                        SCL_V_INIT_FRAC_BOT, init_frac,
 615                        SCL_V_INIT_INT_BOT, init_int);
 616        }
 617
 618        init_frac = dc_fixpt_u0d19(data->inits.v_c) << 5;
 619        init_int = dc_fixpt_floor(data->inits.v_c);
 620        REG_SET_2(SCL_VERT_FILTER_INIT_C, 0,
 621                SCL_V_INIT_FRAC_C, init_frac,
 622                SCL_V_INIT_INT_C, init_int);
 623
 624        if (REG(SCL_VERT_FILTER_INIT_BOT_C)) {
 625                init_frac = dc_fixpt_u0d19(data->inits.v_c_bot) << 5;
 626                init_int = dc_fixpt_floor(data->inits.v_c_bot);
 627                REG_SET_2(SCL_VERT_FILTER_INIT_BOT_C, 0,
 628                        SCL_V_INIT_FRAC_BOT_C, init_frac,
 629                        SCL_V_INIT_INT_BOT_C, init_int);
 630        }
 631}
 632
 633
 634
 635static void dpp1_dscl_set_recout(
 636                        struct dcn10_dpp *dpp, const struct rect *recout)
 637{
 638        int visual_confirm_on = 0;
 639        if (dpp->base.ctx->dc->debug.visual_confirm != VISUAL_CONFIRM_DISABLE)
 640                visual_confirm_on = 1;
 641
 642        REG_SET_2(RECOUT_START, 0,
 643                /* First pixel of RECOUT */
 644                         RECOUT_START_X, recout->x,
 645                /* First line of RECOUT */
 646                         RECOUT_START_Y, recout->y);
 647
 648        REG_SET_2(RECOUT_SIZE, 0,
 649                /* Number of RECOUT horizontal pixels */
 650                         RECOUT_WIDTH, recout->width,
 651                /* Number of RECOUT vertical lines */
 652                         RECOUT_HEIGHT, recout->height
 653                         - visual_confirm_on * 4 * (dpp->base.inst + 1));
 654}
 655
 656/* Main function to program scaler and line buffer in manual scaling mode */
 657void dpp1_dscl_set_scaler_manual_scale(
 658        struct dpp *dpp_base,
 659        const struct scaler_data *scl_data)
 660{
 661        enum lb_memory_config lb_config;
 662        struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
 663        enum dscl_mode_sel dscl_mode = dpp1_dscl_get_dscl_mode(
 664                        dpp_base, scl_data, dpp_base->ctx->dc->debug.always_scale);
 665        bool ycbcr = scl_data->format >= PIXEL_FORMAT_VIDEO_BEGIN
 666                                && scl_data->format <= PIXEL_FORMAT_VIDEO_END;
 667
 668        if (memcmp(&dpp->scl_data, scl_data, sizeof(*scl_data)) == 0)
 669                return;
 670
 671        PERF_TRACE();
 672
 673        dpp->scl_data = *scl_data;
 674
 675        /* Autocal off */
 676        REG_SET_3(DSCL_AUTOCAL, 0,
 677                AUTOCAL_MODE, AUTOCAL_MODE_OFF,
 678                AUTOCAL_NUM_PIPE, 0,
 679                AUTOCAL_PIPE_ID, 0);
 680
 681        /* Recout */
 682        dpp1_dscl_set_recout(dpp, &scl_data->recout);
 683
 684        /* MPC Size */
 685        REG_SET_2(MPC_SIZE, 0,
 686                /* Number of horizontal pixels of MPC */
 687                         MPC_WIDTH, scl_data->h_active,
 688                /* Number of vertical lines of MPC */
 689                         MPC_HEIGHT, scl_data->v_active);
 690
 691        /* SCL mode */
 692        REG_UPDATE(SCL_MODE, DSCL_MODE, dscl_mode);
 693
 694        if (dscl_mode == DSCL_MODE_DSCL_BYPASS)
 695                return;
 696
 697        /* LB */
 698        lb_config =  dpp1_dscl_find_lb_memory_config(dpp, scl_data);
 699        dpp1_dscl_set_lb(dpp, &scl_data->lb_params, lb_config);
 700
 701        if (dscl_mode == DSCL_MODE_SCALING_444_BYPASS)
 702                return;
 703
 704        /* Black offsets */
 705        if (REG(SCL_BLACK_OFFSET)) {
 706                if (ycbcr)
 707                        REG_SET_2(SCL_BLACK_OFFSET, 0,
 708                                        SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
 709                                        SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_CBCR);
 710                else
 711
 712                        REG_SET_2(SCL_BLACK_OFFSET, 0,
 713                                        SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
 714                                        SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_RGB_Y);
 715        }
 716
 717        /* Manually calculate scale ratio and init values */
 718        dpp1_dscl_set_manual_ratio_init(dpp, scl_data);
 719
 720        /* HTaps/VTaps */
 721        REG_SET_4(SCL_TAP_CONTROL, 0,
 722                SCL_V_NUM_TAPS, scl_data->taps.v_taps - 1,
 723                SCL_H_NUM_TAPS, scl_data->taps.h_taps - 1,
 724                SCL_V_NUM_TAPS_C, scl_data->taps.v_taps_c - 1,
 725                SCL_H_NUM_TAPS_C, scl_data->taps.h_taps_c - 1);
 726
 727        dpp1_dscl_set_scl_filter(dpp, scl_data, ycbcr);
 728        PERF_TRACE();
 729}
 730