drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c

   1 /*
   2  * Copyright 2012-15 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: AMD
  23  *
  24  */
  25
  26 #include "dcn31_optc.h"
  27
  28 #include "dcn30/dcn30_optc.h"
  29 #include "reg_helper.h"
  30 #include "dc.h"
  31 #include "dcn_calc_math.h"
  32
  33 #define REG(reg)\
  34         optc1->tg_regs->reg
  35
  36 #define CTX \
  37         optc1->base.ctx
  38
  39 #undef FN
  40 #define FN(reg_name, field_name) \
  41         optc1->tg_shift->field_name, optc1->tg_mask->field_name
  42
  43 static void optc31_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_cnt,
  44                 int segment_width, int last_segment_width)
  45 {
  46         struct optc *optc1 = DCN10TG_FROM_TG(optc);
  47         uint32_t memory_mask = 0;
  48         int mem_count_per_opp = (segment_width + 2559) / 2560;
  49
  50         /* Assume less than 6 pipes */
  51         if (opp_cnt == 4) {
  52                 if (mem_count_per_opp == 1)
  53                         memory_mask = 0xf;
  54                 else {
  55                         ASSERT(mem_count_per_opp == 2);
  56                         memory_mask = 0xff;
  57                 }
  58         } else if (mem_count_per_opp == 1)
  59                 memory_mask = 0x1 << (opp_id[0] * 2) | 0x1 << (opp_id[1] * 2);
  60         else if (mem_count_per_opp == 2)
  61                 memory_mask = 0x3 << (opp_id[0] * 2) | 0x3 << (opp_id[1] * 2);
  62         else if (mem_count_per_opp == 3)
  63                 memory_mask = 0x77;
  64         else if (mem_count_per_opp == 4)
  65                 memory_mask = 0xff;
  66
  67         if (REG(OPTC_MEMORY_CONFIG))
  68                 REG_SET(OPTC_MEMORY_CONFIG, 0,
  69                         OPTC_MEM_SEL, memory_mask);
  70
  71         if (opp_cnt == 2) {
  72                 REG_SET_3(OPTC_DATA_SOURCE_SELECT, 0,
  73                                 OPTC_NUM_OF_INPUT_SEGMENT, 1,
  74                                 OPTC_SEG0_SRC_SEL, opp_id[0],
  75                                 OPTC_SEG1_SRC_SEL, opp_id[1]);
  76         } else if (opp_cnt == 4) {
  77                 REG_SET_5(OPTC_DATA_SOURCE_SELECT, 0,
  78                                 OPTC_NUM_OF_INPUT_SEGMENT, 3,
  79                                 OPTC_SEG0_SRC_SEL, opp_id[0],
  80                                 OPTC_SEG1_SRC_SEL, opp_id[1],
  81                                 OPTC_SEG2_SRC_SEL, opp_id[2],
  82                                 OPTC_SEG3_SRC_SEL, opp_id[3]);
  83         }
  84
  85         REG_UPDATE(OPTC_WIDTH_CONTROL,
  86                         OPTC_SEGMENT_WIDTH, segment_width);
  87
  88         REG_SET(OTG_H_TIMING_CNTL, 0, OTG_H_TIMING_DIV_MODE, opp_cnt - 1);
  89         optc1->opp_count = opp_cnt;
  90 }
  91
  92 /*
  93  * Enable CRTC - call ASIC Control Object to enable Timing generator.
  94  */
  95 static bool optc31_enable_crtc(struct timing_generator *optc)
  96 {
  97         struct optc *optc1 = DCN10TG_FROM_TG(optc);
  98
  99         /* opp instance for OTG, 1 to 1 mapping and odm will adjust */
 100         REG_UPDATE(OPTC_DATA_SOURCE_SELECT,
 101                         OPTC_SEG0_SRC_SEL, optc->inst);
 102
 103         /* VTG enable first is for HW workaround */
 104         REG_UPDATE(CONTROL,
 105                         VTG0_ENABLE, 1);
 106
 107         REG_SEQ_START();
 108
 109         /* Enable CRTC */
 110         REG_UPDATE_2(OTG_CONTROL,
 111                         OTG_DISABLE_POINT_CNTL, 2,
 112                         OTG_MASTER_EN, 1);
 113
 114         REG_SEQ_SUBMIT();
 115         REG_SEQ_WAIT_DONE();
 116
 117         return true;
 118 }
 119
 120 /* disable_crtc - call ASIC Control Object to disable Timing generator. */
 121 static bool optc31_disable_crtc(struct timing_generator *optc)
 122 {
 123         struct optc *optc1 = DCN10TG_FROM_TG(optc);
 124
 125         REG_UPDATE_5(OPTC_DATA_SOURCE_SELECT,
 126                         OPTC_SEG0_SRC_SEL, 0xf,
 127                         OPTC_SEG1_SRC_SEL, 0xf,
 128                         OPTC_SEG2_SRC_SEL, 0xf,
 129                         OPTC_SEG3_SRC_SEL, 0xf,
 130                         OPTC_NUM_OF_INPUT_SEGMENT, 0);
 131
 132         REG_UPDATE(OPTC_MEMORY_CONFIG,
 133                         OPTC_MEM_SEL, 0);
 134
 135         /* disable otg request until end of the first line
 136          * in the vertical blank region
 137          */
 138         REG_UPDATE(OTG_CONTROL,
 139                         OTG_MASTER_EN, 0);
 140
 141         REG_UPDATE(CONTROL,
 142                         VTG0_ENABLE, 0);
 143
 144         /* CRTC disabled, so disable  clock. */
 145         REG_WAIT(OTG_CLOCK_CONTROL,
 146                         OTG_BUSY, 0,
 147                         1, 100000);
 148         optc1_clear_optc_underflow(optc);
 149
 150         return true;
 151 }
 152 /*
 153  * Immediate_Disable_Crtc - this is to temp disable Timing generator without reset ODM.
 154  */
 155 bool optc31_immediate_disable_crtc(struct timing_generator *optc)
 156 {
 157         struct optc *optc1 = DCN10TG_FROM_TG(optc);
 158
 159         REG_UPDATE_2(OTG_CONTROL,
 160                         OTG_DISABLE_POINT_CNTL, 0,
 161                         OTG_MASTER_EN, 0);
 162
 163         REG_UPDATE(CONTROL,
 164                         VTG0_ENABLE, 0);
 165
 166         /* CRTC disabled, so disable  clock. */
 167         if (optc->ctx->dce_environment != DCE_ENV_DIAG)
 168                 REG_WAIT(OTG_CLOCK_CONTROL,
 169                         OTG_BUSY, 0,
 170                         1, 100000);
 171
 172
 173         /* clear the false state */
 174         optc1_clear_optc_underflow(optc);
 175
 176         return true;
 177 }
 178
 179 void optc31_set_drr(
 180         struct timing_generator *optc,
 181         const struct drr_params *params)
 182 {
 183         struct optc *optc1 = DCN10TG_FROM_TG(optc);
 184
 185         if (params != NULL &&
 186                 params->vertical_total_max > 0 &&
 187                 params->vertical_total_min > 0) {
 188
 189                 if (params->vertical_total_mid != 0) {
 190
 191                         REG_SET(OTG_V_TOTAL_MID, 0,
 192                                 OTG_V_TOTAL_MID, params->vertical_total_mid - 1);
 193
 194                         REG_UPDATE_2(OTG_V_TOTAL_CONTROL,
 195                                         OTG_VTOTAL_MID_REPLACING_MAX_EN, 1,
 196                                         OTG_VTOTAL_MID_FRAME_NUM,
 197                                         (uint8_t)params->vertical_total_mid_frame_num);
 198
 199                 }
 200
 201                 optc->funcs->set_vtotal_min_max(optc, params->vertical_total_min - 1, params->vertical_total_max - 1);
 202
 203                 /*
 204                  * MIN_MASK_EN is gone and MASK is now always enabled.
 205                  *
 206                  * To get it to it work with manual trigger we need to make sure
 207                  * we program the correct bit.
 208                  */
 209                 REG_UPDATE_4(OTG_V_TOTAL_CONTROL,
 210                                 OTG_V_TOTAL_MIN_SEL, 1,
 211                                 OTG_V_TOTAL_MAX_SEL, 1,
 212                                 OTG_FORCE_LOCK_ON_EVENT, 0,
 213                                 OTG_SET_V_TOTAL_MIN_MASK, (1 << 1)); /* TRIGA */
 214
 215                 // Setup manual flow control for EOF via TRIG_A
 216                 optc->funcs->setup_manual_trigger(optc);
 217         } else {
 218                 REG_UPDATE_4(OTG_V_TOTAL_CONTROL,
 219                                 OTG_SET_V_TOTAL_MIN_MASK, 0,
 220                                 OTG_V_TOTAL_MIN_SEL, 0,
 221                                 OTG_V_TOTAL_MAX_SEL, 0,
 222                                 OTG_FORCE_LOCK_ON_EVENT, 0);
 223
 224                 optc->funcs->set_vtotal_min_max(optc, 0, 0);
 225         }
 226 }
 227
 228 void optc3_init_odm(struct timing_generator *optc)
 229 {
 230         struct optc *optc1 = DCN10TG_FROM_TG(optc);
 231
 232         REG_SET_5(OPTC_DATA_SOURCE_SELECT, 0,
 233                         OPTC_NUM_OF_INPUT_SEGMENT, 0,
 234                         OPTC_SEG0_SRC_SEL, optc->inst,
 235                         OPTC_SEG1_SRC_SEL, 0xf,
 236                         OPTC_SEG2_SRC_SEL, 0xf,
 237                         OPTC_SEG3_SRC_SEL, 0xf
 238                         );
 239
 240         REG_SET(OTG_H_TIMING_CNTL, 0,
 241                         OTG_H_TIMING_DIV_MODE, 0);
 242
 243         REG_SET(OPTC_MEMORY_CONFIG, 0,
 244                         OPTC_MEM_SEL, 0);
 245         optc1->opp_count = 1;
 246 }
 247
 248 static struct timing_generator_funcs dcn31_tg_funcs = {
 249                 .validate_timing = optc1_validate_timing,
 250                 .program_timing = optc1_program_timing,
 251                 .setup_vertical_interrupt0 = optc1_setup_vertical_interrupt0,
 252                 .setup_vertical_interrupt1 = optc1_setup_vertical_interrupt1,
 253                 .setup_vertical_interrupt2 = optc1_setup_vertical_interrupt2,
 254                 .program_global_sync = optc1_program_global_sync,
 255                 .enable_crtc = optc31_enable_crtc,
 256                 .disable_crtc = optc31_disable_crtc,
 257                 .immediate_disable_crtc = optc31_immediate_disable_crtc,
 258                 /* used by enable_timing_synchronization. Not need for FPGA */
 259                 .is_counter_moving = optc1_is_counter_moving,
 260                 .get_position = optc1_get_position,
 261                 .get_frame_count = optc1_get_vblank_counter,
 262                 .get_scanoutpos = optc1_get_crtc_scanoutpos,
 263                 .get_otg_active_size = optc1_get_otg_active_size,
 264                 .set_early_control = optc1_set_early_control,
 265                 /* used by enable_timing_synchronization. Not need for FPGA */
 266                 .wait_for_state = optc1_wait_for_state,
 267                 .set_blank_color = optc3_program_blank_color,
 268                 .did_triggered_reset_occur = optc1_did_triggered_reset_occur,
 269                 .triplebuffer_lock = optc3_triplebuffer_lock,
 270                 .triplebuffer_unlock = optc2_triplebuffer_unlock,
 271                 .enable_reset_trigger = optc1_enable_reset_trigger,
 272                 .enable_crtc_reset = optc1_enable_crtc_reset,
 273                 .disable_reset_trigger = optc1_disable_reset_trigger,
 274                 .lock = optc3_lock,
 275                 .unlock = optc1_unlock,
 276                 .lock_doublebuffer_enable = optc3_lock_doublebuffer_enable,
 277                 .lock_doublebuffer_disable = optc3_lock_doublebuffer_disable,
 278                 .enable_optc_clock = optc1_enable_optc_clock,
 279                 .set_drr = optc31_set_drr,
 280                 .get_last_used_drr_vtotal = optc2_get_last_used_drr_vtotal,
 281                 .set_vtotal_min_max = optc1_set_vtotal_min_max,
 282                 .set_static_screen_control = optc1_set_static_screen_control,
 283                 .program_stereo = optc1_program_stereo,
 284                 .is_stereo_left_eye = optc1_is_stereo_left_eye,
 285                 .tg_init = optc3_tg_init,
 286                 .is_tg_enabled = optc1_is_tg_enabled,
 287                 .is_optc_underflow_occurred = optc1_is_optc_underflow_occurred,
 288                 .clear_optc_underflow = optc1_clear_optc_underflow,
 289                 .setup_global_swap_lock = NULL,
 290                 .get_crc = optc1_get_crc,
 291                 .configure_crc = optc2_configure_crc,
 292                 .set_dsc_config = optc3_set_dsc_config,
 293                 .get_dsc_status = optc2_get_dsc_status,
 294                 .set_dwb_source = NULL,
 295                 .set_odm_bypass = optc3_set_odm_bypass,
 296                 .set_odm_combine = optc31_set_odm_combine,
 297                 .get_optc_source = optc2_get_optc_source,
 298                 .set_out_mux = optc3_set_out_mux,
 299                 .set_drr_trigger_window = optc3_set_drr_trigger_window,
 300                 .set_vtotal_change_limit = optc3_set_vtotal_change_limit,
 301                 .set_gsl = optc2_set_gsl,
 302                 .set_gsl_source_select = optc2_set_gsl_source_select,
 303                 .set_vtg_params = optc1_set_vtg_params,
 304                 .program_manual_trigger = optc2_program_manual_trigger,
 305                 .setup_manual_trigger = optc2_setup_manual_trigger,
 306                 .get_hw_timing = optc1_get_hw_timing,
 307                 .init_odm = optc3_init_odm,
 308                 .is_two_pixels_per_container = optc1_is_two_pixels_per_container,
 309 };
 310
 311 void dcn31_timing_generator_init(struct optc *optc1)
 312 {
 313         optc1->base.funcs = &dcn31_tg_funcs;
 314
 315         optc1->max_h_total = optc1->tg_mask->OTG_H_TOTAL + 1;
 316         optc1->max_v_total = optc1->tg_mask->OTG_V_TOTAL + 1;
 317
 318         optc1->min_h_blank = 32;
 319         optc1->min_v_blank = 3;
 320         optc1->min_v_blank_interlace = 5;
 321         optc1->min_h_sync_width = 4;
 322         optc1->min_v_sync_width = 1;
 323 }
 324