drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c

   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
  52 enum 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
  61 enum 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
  78 enum 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
  88 static 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
 116 static 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
 133 static 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
 149 static 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
 158 static 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
 167 static 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
 201 static void dpp1_power_on_dscl(
 202         struct dpp *dpp_base,
 203         bool power_on)
 204 {
 205         struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
 206
 207         if (dpp->tf_regs->DSCL_MEM_PWR_CTRL) {
 208                 REG_UPDATE(DSCL_MEM_PWR_CTRL, LUT_MEM_PWR_FORCE, power_on ? 0 : 3);
 209                 if (power_on)
 210                         REG_WAIT(DSCL_MEM_PWR_STATUS, LUT_MEM_PWR_STATE, 0, 1, 5);
 211         }
 212 }
 213
 214
 215 static void dpp1_dscl_set_lb(
 216         struct dcn10_dpp *dpp,
 217         const struct line_buffer_params *lb_params,
 218         enum lb_memory_config mem_size_config)
 219 {
 220         /* LB */
 221         if (dpp->base.caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT) {
 222                 /* DSCL caps: pixel data processed in fixed format */
 223                 uint32_t pixel_depth = dpp1_dscl_get_pixel_depth_val(lb_params->depth);
 224                 uint32_t dyn_pix_depth = lb_params->dynamic_pixel_depth;
 225
 226                 REG_SET_7(LB_DATA_FORMAT, 0,
 227                         PIXEL_DEPTH, pixel_depth, /* Pixel depth stored in LB */
 228                         PIXEL_EXPAN_MODE, lb_params->pixel_expan_mode, /* Pixel expansion mode */
 229                         PIXEL_REDUCE_MODE, 1, /* Pixel reduction mode: Rounding */
 230                         DYNAMIC_PIXEL_DEPTH, dyn_pix_depth, /* Dynamic expansion pixel depth */
 231                         DITHER_EN, 0, /* Dithering enable: Disabled */
 232                         INTERLEAVE_EN, lb_params->interleave_en, /* Interleave source enable */
 233                         LB_DATA_FORMAT__ALPHA_EN, lb_params->alpha_en); /* Alpha enable */
 234         }
 235         else {
 236                 /* DSCL caps: pixel data processed in float format */
 237                 REG_SET_2(LB_DATA_FORMAT, 0,
 238                         INTERLEAVE_EN, lb_params->interleave_en, /* Interleave source enable */
 239                         LB_DATA_FORMAT__ALPHA_EN, lb_params->alpha_en); /* Alpha enable */
 240         }
 241
 242         REG_SET_2(LB_MEMORY_CTRL, 0,
 243                 MEMORY_CONFIG, mem_size_config,
 244                 LB_MAX_PARTITIONS, 63);
 245 }
 246
 247 static const uint16_t *dpp1_dscl_get_filter_coeffs_64p(int taps, struct fixed31_32 ratio)
 248 {
 249         if (taps == 8)
 250                 return get_filter_8tap_64p(ratio);
 251         else if (taps == 7)
 252                 return get_filter_7tap_64p(ratio);
 253         else if (taps == 6)
 254                 return get_filter_6tap_64p(ratio);
 255         else if (taps == 5)
 256                 return get_filter_5tap_64p(ratio);
 257         else if (taps == 4)
 258                 return get_filter_4tap_64p(ratio);
 259         else if (taps == 3)
 260                 return get_filter_3tap_64p(ratio);
 261         else if (taps == 2)
 262                 return get_filter_2tap_64p();
 263         else if (taps == 1)
 264                 return NULL;
 265         else {
 266                 /* should never happen, bug */
 267                 BREAK_TO_DEBUGGER();
 268                 return NULL;
 269         }
 270 }
 271
 272 static void dpp1_dscl_set_scaler_filter(
 273                 struct dcn10_dpp *dpp,
 274                 uint32_t taps,
 275                 enum dcn10_coef_filter_type_sel filter_type,
 276                 const uint16_t *filter)
 277 {
 278         const int tap_pairs = (taps + 1) / 2;
 279         int phase;
 280         int pair;
 281         uint16_t odd_coef, even_coef;
 282
 283         REG_SET_3(SCL_COEF_RAM_TAP_SELECT, 0,
 284                 SCL_COEF_RAM_TAP_PAIR_IDX, 0,
 285                 SCL_COEF_RAM_PHASE, 0,
 286                 SCL_COEF_RAM_FILTER_TYPE, filter_type);
 287
 288         for (phase = 0; phase < (NUM_PHASES / 2 + 1); phase++) {
 289                 for (pair = 0; pair < tap_pairs; pair++) {
 290                         even_coef = filter[phase * taps + 2 * pair];
 291                         if ((pair * 2 + 1) < taps)
 292                                 odd_coef = filter[phase * taps + 2 * pair + 1];
 293                         else
 294                                 odd_coef = 0;
 295
 296                         REG_SET_4(SCL_COEF_RAM_TAP_DATA, 0,
 297                                 /* Even tap coefficient (bits 1:0 fixed to 0) */
 298                                 SCL_COEF_RAM_EVEN_TAP_COEF, even_coef,
 299                                 /* Write/read control for even coefficient */
 300                                 SCL_COEF_RAM_EVEN_TAP_COEF_EN, 1,
 301                                 /* Odd tap coefficient (bits 1:0 fixed to 0) */
 302                                 SCL_COEF_RAM_ODD_TAP_COEF, odd_coef,
 303                                 /* Write/read control for odd coefficient */
 304                                 SCL_COEF_RAM_ODD_TAP_COEF_EN, 1);
 305                 }
 306         }
 307
 308 }
 309
 310 static void dpp1_dscl_set_scl_filter(
 311                 struct dcn10_dpp *dpp,
 312                 const struct scaler_data *scl_data,
 313                 bool chroma_coef_mode)
 314 {
 315         bool h_2tap_hardcode_coef_en = false;
 316         bool v_2tap_hardcode_coef_en = false;
 317         bool h_2tap_sharp_en = false;
 318         bool v_2tap_sharp_en = false;
 319         uint32_t h_2tap_sharp_factor = scl_data->sharpness.horz;
 320         uint32_t v_2tap_sharp_factor = scl_data->sharpness.vert;
 321         bool coef_ram_current;
 322         const uint16_t *filter_h = NULL;
 323         const uint16_t *filter_v = NULL;
 324         const uint16_t *filter_h_c = NULL;
 325         const uint16_t *filter_v_c = NULL;
 326
 327         h_2tap_hardcode_coef_en = scl_data->taps.h_taps < 3
 328                                         && scl_data->taps.h_taps_c < 3
 329                 && (scl_data->taps.h_taps > 1 && scl_data->taps.h_taps_c > 1);
 330         v_2tap_hardcode_coef_en = scl_data->taps.v_taps < 3
 331                                         && scl_data->taps.v_taps_c < 3
 332                 && (scl_data->taps.v_taps > 1 && scl_data->taps.v_taps_c > 1);
 333
 334         h_2tap_sharp_en = h_2tap_hardcode_coef_en && h_2tap_sharp_factor != 0;
 335         v_2tap_sharp_en = v_2tap_hardcode_coef_en && v_2tap_sharp_factor != 0;
 336
 337         REG_UPDATE_6(DSCL_2TAP_CONTROL,
 338                 SCL_H_2TAP_HARDCODE_COEF_EN, h_2tap_hardcode_coef_en,
 339                 SCL_H_2TAP_SHARP_EN, h_2tap_sharp_en,
 340                 SCL_H_2TAP_SHARP_FACTOR, h_2tap_sharp_factor,
 341                 SCL_V_2TAP_HARDCODE_COEF_EN, v_2tap_hardcode_coef_en,
 342                 SCL_V_2TAP_SHARP_EN, v_2tap_sharp_en,
 343                 SCL_V_2TAP_SHARP_FACTOR, v_2tap_sharp_factor);
 344
 345         if (!v_2tap_hardcode_coef_en || !h_2tap_hardcode_coef_en) {
 346                 bool filter_updated = false;
 347
 348                 filter_h = dpp1_dscl_get_filter_coeffs_64p(
 349                                 scl_data->taps.h_taps, scl_data->ratios.horz);
 350                 filter_v = dpp1_dscl_get_filter_coeffs_64p(
 351                                 scl_data->taps.v_taps, scl_data->ratios.vert);
 352
 353                 filter_updated = (filter_h && (filter_h != dpp->filter_h))
 354                                 || (filter_v && (filter_v != dpp->filter_v));
 355
 356                 if (chroma_coef_mode) {
 357                         filter_h_c = dpp1_dscl_get_filter_coeffs_64p(
 358                                         scl_data->taps.h_taps_c, scl_data->ratios.horz_c);
 359                         filter_v_c = dpp1_dscl_get_filter_coeffs_64p(
 360                                         scl_data->taps.v_taps_c, scl_data->ratios.vert_c);
 361                         filter_updated = filter_updated || (filter_h_c && (filter_h_c != dpp->filter_h_c))
 362                                                         || (filter_v_c && (filter_v_c != dpp->filter_v_c));
 363                 }
 364
 365                 if (filter_updated) {
 366                         uint32_t scl_mode = REG_READ(SCL_MODE);
 367
 368                         if (!h_2tap_hardcode_coef_en && filter_h) {
 369                                 dpp1_dscl_set_scaler_filter(
 370                                         dpp, scl_data->taps.h_taps,
 371                                         SCL_COEF_LUMA_HORZ_FILTER, filter_h);
 372                         }
 373                         dpp->filter_h = filter_h;
 374                         if (!v_2tap_hardcode_coef_en && filter_v) {
 375                                 dpp1_dscl_set_scaler_filter(
 376                                         dpp, scl_data->taps.v_taps,
 377                                         SCL_COEF_LUMA_VERT_FILTER, filter_v);
 378                         }
 379                         dpp->filter_v = filter_v;
 380                         if (chroma_coef_mode) {
 381                                 if (!h_2tap_hardcode_coef_en && filter_h_c) {
 382                                         dpp1_dscl_set_scaler_filter(
 383                                                 dpp, scl_data->taps.h_taps_c,
 384                                                 SCL_COEF_CHROMA_HORZ_FILTER, filter_h_c);
 385                                 }
 386                                 if (!v_2tap_hardcode_coef_en && filter_v_c) {
 387                                         dpp1_dscl_set_scaler_filter(
 388                                                 dpp, scl_data->taps.v_taps_c,
 389                                                 SCL_COEF_CHROMA_VERT_FILTER, filter_v_c);
 390                                 }
 391                         }
 392                         dpp->filter_h_c = filter_h_c;
 393                         dpp->filter_v_c = filter_v_c;
 394
 395                         coef_ram_current = get_reg_field_value_ex(
 396                                 scl_mode, dpp->tf_mask->SCL_COEF_RAM_SELECT_CURRENT,
 397                                 dpp->tf_shift->SCL_COEF_RAM_SELECT_CURRENT);
 398
 399                         /* Swap coefficient RAM and set chroma coefficient mode */
 400                         REG_SET_2(SCL_MODE, scl_mode,
 401                                         SCL_COEF_RAM_SELECT, !coef_ram_current,
 402                                         SCL_CHROMA_COEF_MODE, chroma_coef_mode);
 403                 }
 404         }
 405 }
 406
 407 static int dpp1_dscl_get_lb_depth_bpc(enum lb_pixel_depth depth)
 408 {
 409         if (depth == LB_PIXEL_DEPTH_30BPP)
 410                 return 10;
 411         else if (depth == LB_PIXEL_DEPTH_24BPP)
 412                 return 8;
 413         else if (depth == LB_PIXEL_DEPTH_18BPP)
 414                 return 6;
 415         else if (depth == LB_PIXEL_DEPTH_36BPP)
 416                 return 12;
 417         else {
 418                 BREAK_TO_DEBUGGER();
 419                 return -1; /* Unsupported */
 420         }
 421 }
 422
 423 void dpp1_dscl_calc_lb_num_partitions(
 424                 const struct scaler_data *scl_data,
 425                 enum lb_memory_config lb_config,
 426                 int *num_part_y,
 427                 int *num_part_c)
 428 {
 429         int lb_memory_size, lb_memory_size_c, lb_memory_size_a, num_partitions_a,
 430         lb_bpc, memory_line_size_y, memory_line_size_c, memory_line_size_a;
 431
 432         int line_size = scl_data->viewport.width < scl_data->recout.width ?
 433                         scl_data->viewport.width : scl_data->recout.width;
 434         int line_size_c = scl_data->viewport_c.width < scl_data->recout.width ?
 435                         scl_data->viewport_c.width : scl_data->recout.width;
 436
 437         if (line_size == 0)
 438                 line_size = 1;
 439
 440         if (line_size_c == 0)
 441                 line_size_c = 1;
 442
 443
 444         lb_bpc = dpp1_dscl_get_lb_depth_bpc(scl_data->lb_params.depth);
 445         memory_line_size_y = (line_size * lb_bpc + 71) / 72; /* +71 to ceil */
 446         memory_line_size_c = (line_size_c * lb_bpc + 71) / 72; /* +71 to ceil */
 447         memory_line_size_a = (line_size + 5) / 6; /* +5 to ceil */
 448
 449         if (lb_config == LB_MEMORY_CONFIG_1) {
 450                 lb_memory_size = 816;
 451                 lb_memory_size_c = 816;
 452                 lb_memory_size_a = 984;
 453         } else if (lb_config == LB_MEMORY_CONFIG_2) {
 454                 lb_memory_size = 1088;
 455                 lb_memory_size_c = 1088;
 456                 lb_memory_size_a = 1312;
 457         } else if (lb_config == LB_MEMORY_CONFIG_3) {
 458                 /* 420 mode: using 3rd mem from Y, Cr and Cb */
 459                 lb_memory_size = 816 + 1088 + 848 + 848 + 848;
 460                 lb_memory_size_c = 816 + 1088;
 461                 lb_memory_size_a = 984 + 1312 + 456;
 462         } else {
 463                 lb_memory_size = 816 + 1088 + 848;
 464                 lb_memory_size_c = 816 + 1088 + 848;
 465                 lb_memory_size_a = 984 + 1312 + 456;
 466         }
 467         *num_part_y = lb_memory_size / memory_line_size_y;
 468         *num_part_c = lb_memory_size_c / memory_line_size_c;
 469         num_partitions_a = lb_memory_size_a / memory_line_size_a;
 470
 471         if (scl_data->lb_params.alpha_en
 472                         && (num_partitions_a < *num_part_y))
 473                 *num_part_y = num_partitions_a;
 474
 475         if (*num_part_y > 64)
 476                 *num_part_y = 64;
 477         if (*num_part_c > 64)
 478                 *num_part_c = 64;
 479
 480 }
 481
 482 bool dpp1_dscl_is_lb_conf_valid(int ceil_vratio, int num_partitions, int vtaps)
 483 {
 484         if (ceil_vratio > 2)
 485                 return vtaps <= (num_partitions - ceil_vratio + 2);
 486         else
 487                 return vtaps <= num_partitions;
 488 }
 489
 490 /*find first match configuration which meets the min required lb size*/
 491 static enum lb_memory_config dpp1_dscl_find_lb_memory_config(struct dcn10_dpp *dpp,
 492                 const struct scaler_data *scl_data)
 493 {
 494         int num_part_y, num_part_c;
 495         int vtaps = scl_data->taps.v_taps;
 496         int vtaps_c = scl_data->taps.v_taps_c;
 497         int ceil_vratio = dc_fixpt_ceil(scl_data->ratios.vert);
 498         int ceil_vratio_c = dc_fixpt_ceil(scl_data->ratios.vert_c);
 499
 500         if (dpp->base.ctx->dc->debug.use_max_lb) {
 501                 if (scl_data->format == PIXEL_FORMAT_420BPP8
 502                                 || scl_data->format == PIXEL_FORMAT_420BPP10)
 503                         return LB_MEMORY_CONFIG_3;
 504                 return LB_MEMORY_CONFIG_0;
 505         }
 506
 507         dpp->base.caps->dscl_calc_lb_num_partitions(
 508                         scl_data, LB_MEMORY_CONFIG_1, &num_part_y, &num_part_c);
 509
 510         if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
 511                         && dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
 512                 return LB_MEMORY_CONFIG_1;
 513
 514         dpp->base.caps->dscl_calc_lb_num_partitions(
 515                         scl_data, LB_MEMORY_CONFIG_2, &num_part_y, &num_part_c);
 516
 517         if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
 518                         && dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
 519                 return LB_MEMORY_CONFIG_2;
 520
 521         if (scl_data->format == PIXEL_FORMAT_420BPP8
 522                         || scl_data->format == PIXEL_FORMAT_420BPP10) {
 523                 dpp->base.caps->dscl_calc_lb_num_partitions(
 524                                 scl_data, LB_MEMORY_CONFIG_3, &num_part_y, &num_part_c);
 525
 526                 if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
 527                                 && dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
 528                         return LB_MEMORY_CONFIG_3;
 529         }
 530
 531         dpp->base.caps->dscl_calc_lb_num_partitions(
 532                         scl_data, LB_MEMORY_CONFIG_0, &num_part_y, &num_part_c);
 533
 534         /*Ensure we can support the requested number of vtaps*/
 535         ASSERT(dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
 536                         && dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c));
 537
 538         return LB_MEMORY_CONFIG_0;
 539 }
 540
 541 void dpp1_dscl_set_scaler_auto_scale(
 542         struct dpp *dpp_base,
 543         const struct scaler_data *scl_data)
 544 {
 545         enum lb_memory_config lb_config;
 546         struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
 547         enum dscl_mode_sel dscl_mode = dpp1_dscl_get_dscl_mode(
 548                         dpp_base, scl_data, dpp_base->ctx->dc->debug.always_scale);
 549         bool ycbcr = scl_data->format >= PIXEL_FORMAT_VIDEO_BEGIN
 550                                 && scl_data->format <= PIXEL_FORMAT_VIDEO_END;
 551
 552         dpp1_dscl_set_overscan(dpp, scl_data);
 553
 554         dpp1_dscl_set_otg_blank(dpp, scl_data);
 555
 556         REG_UPDATE(SCL_MODE, DSCL_MODE, dscl_mode);
 557
 558         if (dscl_mode == DSCL_MODE_DSCL_BYPASS)
 559                 return;
 560
 561         lb_config =  dpp1_dscl_find_lb_memory_config(dpp, scl_data);
 562         dpp1_dscl_set_lb(dpp, &scl_data->lb_params, lb_config);
 563
 564         if (dscl_mode == DSCL_MODE_SCALING_444_BYPASS)
 565                 return;
 566
 567         /* TODO: v_min */
 568         REG_SET_3(DSCL_AUTOCAL, 0,
 569                 AUTOCAL_MODE, AUTOCAL_MODE_AUTOSCALE,
 570                 AUTOCAL_NUM_PIPE, 0,
 571                 AUTOCAL_PIPE_ID, 0);
 572
 573         /* Black offsets */
 574         if (ycbcr)
 575                 REG_SET_2(SCL_BLACK_OFFSET, 0,
 576                                 SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
 577                                 SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_CBCR);
 578         else
 579
 580                 REG_SET_2(SCL_BLACK_OFFSET, 0,
 581                                 SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
 582                                 SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_RGB_Y);
 583
 584         REG_SET_4(SCL_TAP_CONTROL, 0,
 585                 SCL_V_NUM_TAPS, scl_data->taps.v_taps - 1,
 586                 SCL_H_NUM_TAPS, scl_data->taps.h_taps - 1,
 587                 SCL_V_NUM_TAPS_C, scl_data->taps.v_taps_c - 1,
 588                 SCL_H_NUM_TAPS_C, scl_data->taps.h_taps_c - 1);
 589
 590         dpp1_dscl_set_scl_filter(dpp, scl_data, ycbcr);
 591 }
 592
 593
 594 static void dpp1_dscl_set_manual_ratio_init(
 595                 struct dcn10_dpp *dpp, const struct scaler_data *data)
 596 {
 597         uint32_t init_frac = 0;
 598         uint32_t init_int = 0;
 599
 600         REG_SET(SCL_HORZ_FILTER_SCALE_RATIO, 0,
 601                         SCL_H_SCALE_RATIO, dc_fixpt_u3d19(data->ratios.horz) << 5);
 602
 603         REG_SET(SCL_VERT_FILTER_SCALE_RATIO, 0,
 604                         SCL_V_SCALE_RATIO, dc_fixpt_u3d19(data->ratios.vert) << 5);
 605
 606         REG_SET(SCL_HORZ_FILTER_SCALE_RATIO_C, 0,
 607                         SCL_H_SCALE_RATIO_C, dc_fixpt_u3d19(data->ratios.horz_c) << 5);
 608
 609         REG_SET(SCL_VERT_FILTER_SCALE_RATIO_C, 0,
 610                         SCL_V_SCALE_RATIO_C, dc_fixpt_u3d19(data->ratios.vert_c) << 5);
 611
 612         /*
 613          * 0.24 format for fraction, first five bits zeroed
 614          */
 615         init_frac = dc_fixpt_u0d19(data->inits.h) << 5;
 616         init_int = dc_fixpt_floor(data->inits.h);
 617         REG_SET_2(SCL_HORZ_FILTER_INIT, 0,
 618                 SCL_H_INIT_FRAC, init_frac,
 619                 SCL_H_INIT_INT, init_int);
 620
 621         init_frac = dc_fixpt_u0d19(data->inits.h_c) << 5;
 622         init_int = dc_fixpt_floor(data->inits.h_c);
 623         REG_SET_2(SCL_HORZ_FILTER_INIT_C, 0,
 624                 SCL_H_INIT_FRAC_C, init_frac,
 625                 SCL_H_INIT_INT_C, init_int);
 626
 627         init_frac = dc_fixpt_u0d19(data->inits.v) << 5;
 628         init_int = dc_fixpt_floor(data->inits.v);
 629         REG_SET_2(SCL_VERT_FILTER_INIT, 0,
 630                 SCL_V_INIT_FRAC, init_frac,
 631                 SCL_V_INIT_INT, init_int);
 632
 633         if (REG(SCL_VERT_FILTER_INIT_BOT)) {
 634                 struct fixed31_32 bot = dc_fixpt_add(data->inits.v, data->ratios.vert);
 635
 636                 init_frac = dc_fixpt_u0d19(bot) << 5;
 637                 init_int = dc_fixpt_floor(bot);
 638                 REG_SET_2(SCL_VERT_FILTER_INIT_BOT, 0,
 639                         SCL_V_INIT_FRAC_BOT, init_frac,
 640                         SCL_V_INIT_INT_BOT, init_int);
 641         }
 642
 643         init_frac = dc_fixpt_u0d19(data->inits.v_c) << 5;
 644         init_int = dc_fixpt_floor(data->inits.v_c);
 645         REG_SET_2(SCL_VERT_FILTER_INIT_C, 0,
 646                 SCL_V_INIT_FRAC_C, init_frac,
 647                 SCL_V_INIT_INT_C, init_int);
 648
 649         if (REG(SCL_VERT_FILTER_INIT_BOT_C)) {
 650                 struct fixed31_32 bot = dc_fixpt_add(data->inits.v_c, data->ratios.vert_c);
 651
 652                 init_frac = dc_fixpt_u0d19(bot) << 5;
 653                 init_int = dc_fixpt_floor(bot);
 654                 REG_SET_2(SCL_VERT_FILTER_INIT_BOT_C, 0,
 655                         SCL_V_INIT_FRAC_BOT_C, init_frac,
 656                         SCL_V_INIT_INT_BOT_C, init_int);
 657         }
 658 }
 659
 660 /**
 661  * dpp1_dscl_set_recout - Set the first pixel of RECOUT in the OTG active area
 662  *
 663  * @dpp: DPP data struct
 664  * @recount: Rectangle information
 665  *
 666  * This function sets the MPC RECOUT_START and RECOUT_SIZE registers based on
 667  * the values specified in the recount parameter.
 668  *
 669  * Note: This function only have effect if AutoCal is disabled.
 670  */
 671 static void dpp1_dscl_set_recout(struct dcn10_dpp *dpp,
 672                                  const struct rect *recout)
 673 {
 674         int visual_confirm_on = 0;
 675         if (dpp->base.ctx->dc->debug.visual_confirm != VISUAL_CONFIRM_DISABLE)
 676                 visual_confirm_on = 1;
 677
 678         REG_SET_2(RECOUT_START, 0,
 679                   /* First pixel of RECOUT in the active OTG area */
 680                   RECOUT_START_X, recout->x,
 681                   /* First line of RECOUT in the active OTG area */
 682                   RECOUT_START_Y, recout->y);
 683
 684         REG_SET_2(RECOUT_SIZE, 0,
 685                   /* Number of RECOUT horizontal pixels */
 686                   RECOUT_WIDTH, recout->width,
 687                   /* Number of RECOUT vertical lines */
 688                   RECOUT_HEIGHT, recout->height
 689                          - visual_confirm_on * 2 * (dpp->base.inst + 1));
 690 }
 691
 692 /**
 693  * dpp1_dscl_set_scaler_manual_scale - Manually program scaler and line buffer
 694  *
 695  * @dpp_base: High level DPP struct
 696  * @scl_data: scalaer_data info
 697  *
 698  * This is the primary function to program scaler and line buffer in manual
 699  * scaling mode. To execute the required operations for manual scale, we need
 700  * to disable AutoCal first.
 701  */
 702 void dpp1_dscl_set_scaler_manual_scale(struct dpp *dpp_base,
 703                                        const struct scaler_data *scl_data)
 704 {
 705         enum lb_memory_config lb_config;
 706         struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
 707         enum dscl_mode_sel dscl_mode = dpp1_dscl_get_dscl_mode(
 708                         dpp_base, scl_data, dpp_base->ctx->dc->debug.always_scale);
 709         bool ycbcr = scl_data->format >= PIXEL_FORMAT_VIDEO_BEGIN
 710                                 && scl_data->format <= PIXEL_FORMAT_VIDEO_END;
 711
 712         if (memcmp(&dpp->scl_data, scl_data, sizeof(*scl_data)) == 0)
 713                 return;
 714
 715         PERF_TRACE();
 716
 717         dpp->scl_data = *scl_data;
 718
 719         if (dpp_base->ctx->dc->debug.enable_mem_low_power.bits.dscl) {
 720                 if (dscl_mode != DSCL_MODE_DSCL_BYPASS)
 721                         dpp1_power_on_dscl(dpp_base, true);
 722         }
 723
 724         /* Autocal off */
 725         REG_SET_3(DSCL_AUTOCAL, 0,
 726                 AUTOCAL_MODE, AUTOCAL_MODE_OFF,
 727                 AUTOCAL_NUM_PIPE, 0,
 728                 AUTOCAL_PIPE_ID, 0);
 729
 730         /* Recout */
 731         dpp1_dscl_set_recout(dpp, &scl_data->recout);
 732
 733         /* MPC Size */
 734         REG_SET_2(MPC_SIZE, 0,
 735                 /* Number of horizontal pixels of MPC */
 736                          MPC_WIDTH, scl_data->h_active,
 737                 /* Number of vertical lines of MPC */
 738                          MPC_HEIGHT, scl_data->v_active);
 739
 740         /* SCL mode */
 741         REG_UPDATE(SCL_MODE, DSCL_MODE, dscl_mode);
 742
 743         if (dscl_mode == DSCL_MODE_DSCL_BYPASS) {
 744                 if (dpp_base->ctx->dc->debug.enable_mem_low_power.bits.dscl)
 745                         dpp1_power_on_dscl(dpp_base, false);
 746                 return;
 747         }
 748
 749         /* LB */
 750         lb_config =  dpp1_dscl_find_lb_memory_config(dpp, scl_data);
 751         dpp1_dscl_set_lb(dpp, &scl_data->lb_params, lb_config);
 752
 753         if (dscl_mode == DSCL_MODE_SCALING_444_BYPASS)
 754                 return;
 755
 756         /* Black offsets */
 757         if (REG(SCL_BLACK_OFFSET)) {
 758                 if (ycbcr)
 759                         REG_SET_2(SCL_BLACK_OFFSET, 0,
 760                                         SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
 761                                         SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_CBCR);
 762                 else
 763
 764                         REG_SET_2(SCL_BLACK_OFFSET, 0,
 765                                         SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
 766                                         SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_RGB_Y);
 767         }
 768
 769         /* Manually calculate scale ratio and init values */
 770         dpp1_dscl_set_manual_ratio_init(dpp, scl_data);
 771
 772         /* HTaps/VTaps */
 773         REG_SET_4(SCL_TAP_CONTROL, 0,
 774                 SCL_V_NUM_TAPS, scl_data->taps.v_taps - 1,
 775                 SCL_H_NUM_TAPS, scl_data->taps.h_taps - 1,
 776                 SCL_V_NUM_TAPS_C, scl_data->taps.v_taps_c - 1,
 777                 SCL_H_NUM_TAPS_C, scl_data->taps.h_taps_c - 1);
 778
 779         dpp1_dscl_set_scl_filter(dpp, scl_data, ycbcr);
 780         PERF_TRACE();
 781 }