drivers/gpu/drm/amd/display/dc/optc/dcn314/dcn314_optc.c

   1 // SPDX-License-Identifier: MIT
   2 /*
   3  * Copyright 2022 Advanced Micro Devices, Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21  * OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors: AMD
  24  *
  25  */
  26
  27 #include "dcn314_optc.h"
  28
  29 #include "dcn30/dcn30_optc.h"
  30 #include "dcn31/dcn31_optc.h"
  31 #include "reg_helper.h"
  32 #include "dc.h"
  33 #include "dcn_calc_math.h"
  34
  35 #define REG(reg)\
  36         optc1->tg_regs->reg
  37
  38 #define CTX \
  39         optc1->base.ctx
  40
  41 #undef FN
  42 #define FN(reg_name, field_name) \
  43         optc1->tg_shift->field_name, optc1->tg_mask->field_name
  44
  45 /*
  46  * Enable CRTC
  47  * Enable CRTC - call ASIC Control Object to enable Timing generator.
  48  */
  49
  50 static void optc314_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_cnt,
  51                 int segment_width, int last_segment_width)
  52 {
  53         struct optc *optc1 = DCN10TG_FROM_TG(optc);
  54         uint32_t memory_mask = 0;
  55         int h_active = segment_width * opp_cnt;
  56         /* Each memory instance is 2048x(314x2) bits to support half line of 4096 */
  57         int odm_mem_count = (h_active + 2047) / 2048;
  58
  59         /*
  60          * display <= 4k : 2 memories + 2 pipes
  61          * 4k < display <= 8k : 4 memories + 2 pipes
  62          * 8k < display <= 12k : 6 memories + 4 pipes
  63          */
  64         if (opp_cnt == 4) {
  65                 if (odm_mem_count <= 2)
  66                         memory_mask = 0x3;
  67                 else if (odm_mem_count <= 4)
  68                         memory_mask = 0xf;
  69                 else
  70                         memory_mask = 0x3f;
  71         } else {
  72                 if (odm_mem_count <= 2)
  73                         memory_mask = 0x1 << (opp_id[0] * 2) | 0x1 << (opp_id[1] * 2);
  74                 else if (odm_mem_count <= 4)
  75                         memory_mask = 0x3 << (opp_id[0] * 2) | 0x3 << (opp_id[1] * 2);
  76                 else
  77                         memory_mask = 0x77;
  78         }
  79
  80         REG_SET(OPTC_MEMORY_CONFIG, 0,
  81                 OPTC_MEM_SEL, memory_mask);
  82
  83         if (opp_cnt == 2) {
  84                 REG_SET_3(OPTC_DATA_SOURCE_SELECT, 0,
  85                                 OPTC_NUM_OF_INPUT_SEGMENT, 1,
  86                                 OPTC_SEG0_SRC_SEL, opp_id[0],
  87                                 OPTC_SEG1_SRC_SEL, opp_id[1]);
  88         } else if (opp_cnt == 4) {
  89                 REG_SET_5(OPTC_DATA_SOURCE_SELECT, 0,
  90                                 OPTC_NUM_OF_INPUT_SEGMENT, 3,
  91                                 OPTC_SEG0_SRC_SEL, opp_id[0],
  92                                 OPTC_SEG1_SRC_SEL, opp_id[1],
  93                                 OPTC_SEG2_SRC_SEL, opp_id[2],
  94                                 OPTC_SEG3_SRC_SEL, opp_id[3]);
  95         }
  96
  97         REG_UPDATE(OPTC_WIDTH_CONTROL,
  98                         OPTC_SEGMENT_WIDTH, segment_width);
  99
 100         REG_UPDATE(OTG_H_TIMING_CNTL,
 101                         OTG_H_TIMING_DIV_MODE, opp_cnt - 1);
 102         optc1->opp_count = opp_cnt;
 103 }
 104
 105 static bool optc314_enable_crtc(struct timing_generator *optc)
 106 {
 107         struct optc *optc1 = DCN10TG_FROM_TG(optc);
 108
 109         /* opp instance for OTG, 1 to 1 mapping and odm will adjust */
 110         REG_UPDATE(OPTC_DATA_SOURCE_SELECT,
 111                         OPTC_SEG0_SRC_SEL, optc->inst);
 112
 113         /* VTG enable first is for HW workaround */
 114         REG_UPDATE(CONTROL,
 115                         VTG0_ENABLE, 1);
 116
 117         REG_SEQ_START();
 118
 119         /* Enable CRTC */
 120         REG_UPDATE_2(OTG_CONTROL,
 121                         OTG_DISABLE_POINT_CNTL, 2,
 122                         OTG_MASTER_EN, 1);
 123
 124         REG_SEQ_SUBMIT();
 125         REG_SEQ_WAIT_DONE();
 126
 127         return true;
 128 }
 129
 130 /* disable_crtc */
 131 static bool optc314_disable_crtc(struct timing_generator *optc)
 132 {
 133         struct optc *optc1 = DCN10TG_FROM_TG(optc);
 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
 149         return true;
 150 }
 151
 152 static void optc314_phantom_crtc_post_enable(struct timing_generator *optc)
 153 {
 154         struct optc *optc1 = DCN10TG_FROM_TG(optc);
 155
 156         /* Disable immediately. */
 157         REG_UPDATE_2(OTG_CONTROL, OTG_DISABLE_POINT_CNTL, 0, OTG_MASTER_EN, 0);
 158
 159         /* CRTC disabled, so disable  clock. */
 160         REG_WAIT(OTG_CLOCK_CONTROL, OTG_BUSY, 0, 1, 100000);
 161 }
 162
 163 static void optc314_set_odm_bypass(struct timing_generator *optc,
 164                 const struct dc_crtc_timing *dc_crtc_timing)
 165 {
 166         struct optc *optc1 = DCN10TG_FROM_TG(optc);
 167         enum h_timing_div_mode h_div = H_TIMING_NO_DIV;
 168
 169         REG_SET_5(OPTC_DATA_SOURCE_SELECT, 0,
 170                         OPTC_NUM_OF_INPUT_SEGMENT, 0,
 171                         OPTC_SEG0_SRC_SEL, optc->inst,
 172                         OPTC_SEG1_SRC_SEL, 0xf,
 173                         OPTC_SEG2_SRC_SEL, 0xf,
 174                         OPTC_SEG3_SRC_SEL, 0xf
 175                         );
 176
 177         h_div = optc->funcs->is_two_pixels_per_container(dc_crtc_timing);
 178         REG_UPDATE(OTG_H_TIMING_CNTL,
 179                         OTG_H_TIMING_DIV_MODE, h_div);
 180
 181         REG_SET(OPTC_MEMORY_CONFIG, 0,
 182                         OPTC_MEM_SEL, 0);
 183         optc1->opp_count = 1;
 184 }
 185
 186 static void optc314_set_h_timing_div_manual_mode(struct timing_generator *optc, bool manual_mode)
 187 {
 188         struct optc *optc1 = DCN10TG_FROM_TG(optc);
 189
 190         REG_UPDATE(OTG_H_TIMING_CNTL,
 191                         OTG_H_TIMING_DIV_MODE_MANUAL, manual_mode ? 1 : 0);
 192 }
 193
 194
 195 static struct timing_generator_funcs dcn314_tg_funcs = {
 196                 .validate_timing = optc1_validate_timing,
 197                 .program_timing = optc1_program_timing,
 198                 .setup_vertical_interrupt0 = optc1_setup_vertical_interrupt0,
 199                 .setup_vertical_interrupt1 = optc1_setup_vertical_interrupt1,
 200                 .setup_vertical_interrupt2 = optc1_setup_vertical_interrupt2,
 201                 .program_global_sync = optc1_program_global_sync,
 202                 .enable_crtc = optc314_enable_crtc,
 203                 .disable_crtc = optc314_disable_crtc,
 204                 .immediate_disable_crtc = optc31_immediate_disable_crtc,
 205                 .phantom_crtc_post_enable = optc314_phantom_crtc_post_enable,
 206                 /* used by enable_timing_synchronization. Not need for FPGA */
 207                 .is_counter_moving = optc1_is_counter_moving,
 208                 .get_position = optc1_get_position,
 209                 .get_frame_count = optc1_get_vblank_counter,
 210                 .get_scanoutpos = optc1_get_crtc_scanoutpos,
 211                 .get_otg_active_size = optc1_get_otg_active_size,
 212                 .set_early_control = optc1_set_early_control,
 213                 /* used by enable_timing_synchronization. Not need for FPGA */
 214                 .wait_for_state = optc1_wait_for_state,
 215                 .set_blank_color = optc3_program_blank_color,
 216                 .did_triggered_reset_occur = optc1_did_triggered_reset_occur,
 217                 .triplebuffer_lock = optc3_triplebuffer_lock,
 218                 .triplebuffer_unlock = optc2_triplebuffer_unlock,
 219                 .enable_reset_trigger = optc1_enable_reset_trigger,
 220                 .enable_crtc_reset = optc1_enable_crtc_reset,
 221                 .disable_reset_trigger = optc1_disable_reset_trigger,
 222                 .lock = optc3_lock,
 223                 .unlock = optc1_unlock,
 224                 .lock_doublebuffer_enable = optc3_lock_doublebuffer_enable,
 225                 .lock_doublebuffer_disable = optc3_lock_doublebuffer_disable,
 226                 .enable_optc_clock = optc1_enable_optc_clock,
 227                 .set_drr = optc31_set_drr,
 228                 .get_last_used_drr_vtotal = optc2_get_last_used_drr_vtotal,
 229                 .set_vtotal_min_max = optc1_set_vtotal_min_max,
 230                 .set_static_screen_control = optc1_set_static_screen_control,
 231                 .program_stereo = optc1_program_stereo,
 232                 .is_stereo_left_eye = optc1_is_stereo_left_eye,
 233                 .tg_init = optc3_tg_init,
 234                 .is_tg_enabled = optc1_is_tg_enabled,
 235                 .is_optc_underflow_occurred = optc1_is_optc_underflow_occurred,
 236                 .clear_optc_underflow = optc1_clear_optc_underflow,
 237                 .setup_global_swap_lock = NULL,
 238                 .get_crc = optc1_get_crc,
 239                 .configure_crc = optc1_configure_crc,
 240                 .set_dsc_config = optc3_set_dsc_config,
 241                 .get_dsc_status = optc2_get_dsc_status,
 242                 .set_dwb_source = NULL,
 243                 .get_optc_source = optc2_get_optc_source,
 244                 .set_out_mux = optc3_set_out_mux,
 245                 .set_drr_trigger_window = optc3_set_drr_trigger_window,
 246                 .set_vtotal_change_limit = optc3_set_vtotal_change_limit,
 247                 .set_gsl = optc2_set_gsl,
 248                 .set_gsl_source_select = optc2_set_gsl_source_select,
 249                 .set_vtg_params = optc1_set_vtg_params,
 250                 .program_manual_trigger = optc2_program_manual_trigger,
 251                 .setup_manual_trigger = optc2_setup_manual_trigger,
 252                 .get_hw_timing = optc1_get_hw_timing,
 253                 .init_odm = optc3_init_odm,
 254                 .set_odm_bypass = optc314_set_odm_bypass,
 255                 .set_odm_combine = optc314_set_odm_combine,
 256                 .set_h_timing_div_manual_mode = optc314_set_h_timing_div_manual_mode,
 257                 .is_two_pixels_per_container = optc1_is_two_pixels_per_container,
 258 };
 259
 260 void dcn314_timing_generator_init(struct optc *optc1)
 261 {
 262         optc1->base.funcs = &dcn314_tg_funcs;
 263
 264         optc1->max_h_total = optc1->tg_mask->OTG_H_TOTAL + 1;
 265         optc1->max_v_total = optc1->tg_mask->OTG_V_TOTAL + 1;
 266
 267         optc1->min_h_blank = 32;
 268         optc1->min_v_blank = 3;
 269         optc1->min_v_blank_interlace = 5;
 270         optc1->min_h_sync_width = 4;
 271         optc1->min_v_sync_width = 1;
 272 }
 273