1 /* 2 * Copyright 2020 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 "reg_helper.h" 27 #include "dcn30_optc.h" 28 #include "dc.h" 29 #include "dcn_calc_math.h" 30 31 #define REG(reg)\ 32 optc1->tg_regs->reg 33 34 #define CTX \ 35 optc1->base.ctx 36 37 #undef FN 38 #define FN(reg_name, field_name) \ 39 optc1->tg_shift->field_name, optc1->tg_mask->field_name 40 41 void optc3_triplebuffer_lock(struct timing_generator *optc) 42 { 43 struct optc *optc1 = DCN10TG_FROM_TG(optc); 44 45 REG_UPDATE(OTG_GLOBAL_CONTROL2, 46 OTG_MASTER_UPDATE_LOCK_SEL, optc->inst); 47 48 REG_SET(OTG_VUPDATE_KEEPOUT, 0, 49 OTG_MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_EN, 1); 50 51 REG_SET(OTG_MASTER_UPDATE_LOCK, 0, 52 OTG_MASTER_UPDATE_LOCK, 1); 53 54 if (optc->ctx->dce_environment != DCE_ENV_FPGA_MAXIMUS) 55 REG_WAIT(OTG_MASTER_UPDATE_LOCK, 56 UPDATE_LOCK_STATUS, 1, 57 1, 10); 58 } 59 60 void optc3_lock_doublebuffer_enable(struct timing_generator *optc) 61 { 62 struct optc *optc1 = DCN10TG_FROM_TG(optc); 63 uint32_t v_blank_start = 0; 64 uint32_t v_blank_end = 0; 65 uint32_t h_blank_start = 0; 66 uint32_t h_blank_end = 0; 67 68 REG_GET_2(OTG_V_BLANK_START_END, 69 OTG_V_BLANK_START, &v_blank_start, 70 OTG_V_BLANK_END, &v_blank_end); 71 REG_GET_2(OTG_H_BLANK_START_END, 72 OTG_H_BLANK_START, &h_blank_start, 73 OTG_H_BLANK_END, &h_blank_end); 74 75 REG_UPDATE_2(OTG_GLOBAL_CONTROL1, 76 MASTER_UPDATE_LOCK_DB_START_Y, v_blank_start - 1, 77 MASTER_UPDATE_LOCK_DB_END_Y, v_blank_start); 78 REG_UPDATE_2(OTG_GLOBAL_CONTROL4, 79 DIG_UPDATE_POSITION_X, h_blank_start - 180 - 1, 80 DIG_UPDATE_POSITION_Y, v_blank_start - 1); 81 // there is a DIG_UPDATE_VCOUNT_MODE and it is 0. 82 83 REG_UPDATE_3(OTG_GLOBAL_CONTROL0, 84 MASTER_UPDATE_LOCK_DB_START_X, h_blank_start - 200 - 1, 85 MASTER_UPDATE_LOCK_DB_END_X, h_blank_start - 180, 86 MASTER_UPDATE_LOCK_DB_EN, 1); 87 REG_UPDATE(OTG_GLOBAL_CONTROL2, GLOBAL_UPDATE_LOCK_EN, 1); 88 89 REG_SET_3(OTG_VUPDATE_KEEPOUT, 0, 90 MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_START_OFFSET, 0, 91 MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_END_OFFSET, 100, 92 OTG_MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_EN, 1); 93 } 94 95 void optc3_lock_doublebuffer_disable(struct timing_generator *optc) 96 { 97 struct optc *optc1 = DCN10TG_FROM_TG(optc); 98 99 REG_UPDATE_2(OTG_GLOBAL_CONTROL0, 100 MASTER_UPDATE_LOCK_DB_START_X, 0, 101 MASTER_UPDATE_LOCK_DB_END_X, 0); 102 REG_UPDATE_2(OTG_GLOBAL_CONTROL1, 103 MASTER_UPDATE_LOCK_DB_START_Y, 0, 104 MASTER_UPDATE_LOCK_DB_END_Y, 0); 105 106 REG_UPDATE(OTG_GLOBAL_CONTROL2, GLOBAL_UPDATE_LOCK_EN, 0); 107 REG_UPDATE(OTG_GLOBAL_CONTROL0, MASTER_UPDATE_LOCK_DB_EN, 0); 108 } 109 110 void optc3_lock(struct timing_generator *optc) 111 { 112 struct optc *optc1 = DCN10TG_FROM_TG(optc); 113 114 REG_UPDATE(OTG_GLOBAL_CONTROL2, 115 OTG_MASTER_UPDATE_LOCK_SEL, optc->inst); 116 REG_SET(OTG_MASTER_UPDATE_LOCK, 0, 117 OTG_MASTER_UPDATE_LOCK, 1); 118 119 REG_WAIT(OTG_MASTER_UPDATE_LOCK, 120 UPDATE_LOCK_STATUS, 1, 121 1, 10); 122 } 123 124 void optc3_set_out_mux(struct timing_generator *optc, enum otg_out_mux_dest dest) 125 { 126 struct optc *optc1 = DCN10TG_FROM_TG(optc); 127 128 REG_UPDATE(OTG_CONTROL, OTG_OUT_MUX, dest); 129 } 130 131 void optc3_program_blank_color(struct timing_generator *optc, 132 const struct tg_color *blank_color) 133 { 134 struct optc *optc1 = DCN10TG_FROM_TG(optc); 135 136 REG_SET_3(OTG_BLANK_DATA_COLOR, 0, 137 OTG_BLANK_DATA_COLOR_BLUE_CB, blank_color->color_b_cb, 138 OTG_BLANK_DATA_COLOR_GREEN_Y, blank_color->color_g_y, 139 OTG_BLANK_DATA_COLOR_RED_CR, blank_color->color_r_cr); 140 141 REG_SET_3(OTG_BLANK_DATA_COLOR_EXT, 0, 142 OTG_BLANK_DATA_COLOR_BLUE_CB_EXT, blank_color->color_b_cb >> 10, 143 OTG_BLANK_DATA_COLOR_GREEN_Y_EXT, blank_color->color_g_y >> 10, 144 OTG_BLANK_DATA_COLOR_RED_CR_EXT, blank_color->color_r_cr >> 10); 145 } 146 147 void optc3_set_drr_trigger_window(struct timing_generator *optc, 148 uint32_t window_start, uint32_t window_end) 149 { 150 struct optc *optc1 = DCN10TG_FROM_TG(optc); 151 152 REG_SET_2(OTG_DRR_TRIGGER_WINDOW, 0, 153 OTG_DRR_TRIGGER_WINDOW_START_X, window_start, 154 OTG_DRR_TRIGGER_WINDOW_END_X, window_end); 155 } 156 157 void optc3_set_vtotal_change_limit(struct timing_generator *optc, 158 uint32_t limit) 159 { 160 struct optc *optc1 = DCN10TG_FROM_TG(optc); 161 162 163 REG_SET(OTG_DRR_V_TOTAL_CHANGE, 0, 164 OTG_DRR_V_TOTAL_CHANGE_LIMIT, limit); 165 } 166 167 168 /* Set DSC-related configuration. 169 * dsc_mode: 0 disables DSC, other values enable DSC in specified format 170 * sc_bytes_per_pixel: Bytes per pixel in u3.28 format 171 * dsc_slice_width: Slice width in pixels 172 */ 173 void optc3_set_dsc_config(struct timing_generator *optc, 174 enum optc_dsc_mode dsc_mode, 175 uint32_t dsc_bytes_per_pixel, 176 uint32_t dsc_slice_width) 177 { 178 struct optc *optc1 = DCN10TG_FROM_TG(optc); 179 180 optc2_set_dsc_config(optc, dsc_mode, dsc_bytes_per_pixel, 181 dsc_slice_width); 182 183 REG_UPDATE(OTG_V_SYNC_A_CNTL, OTG_V_SYNC_MODE, 0); 184 185 } 186 187 void optc3_set_odm_bypass(struct timing_generator *optc, 188 const struct dc_crtc_timing *dc_crtc_timing) 189 { 190 struct optc *optc1 = DCN10TG_FROM_TG(optc); 191 enum h_timing_div_mode h_div = H_TIMING_NO_DIV; 192 193 REG_SET_5(OPTC_DATA_SOURCE_SELECT, 0, 194 OPTC_NUM_OF_INPUT_SEGMENT, 0, 195 OPTC_SEG0_SRC_SEL, optc->inst, 196 OPTC_SEG1_SRC_SEL, 0xf, 197 OPTC_SEG2_SRC_SEL, 0xf, 198 OPTC_SEG3_SRC_SEL, 0xf 199 ); 200 201 h_div = optc1_is_two_pixels_per_containter(dc_crtc_timing); 202 REG_SET(OTG_H_TIMING_CNTL, 0, 203 OTG_H_TIMING_DIV_MODE, h_div); 204 205 REG_SET(OPTC_MEMORY_CONFIG, 0, 206 OPTC_MEM_SEL, 0); 207 optc1->opp_count = 1; 208 } 209 210 static void optc3_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_cnt, 211 struct dc_crtc_timing *timing) 212 { 213 struct optc *optc1 = DCN10TG_FROM_TG(optc); 214 int mpcc_hactive = (timing->h_addressable + timing->h_border_left + timing->h_border_right) 215 / opp_cnt; 216 uint32_t memory_mask = 0; 217 218 /* TODO: In pseudocode but does not affect maximus, delete comment if we dont need on asic 219 * REG_SET(OTG_GLOBAL_CONTROL2, 0, GLOBAL_UPDATE_LOCK_EN, 1); 220 * Program OTG register MASTER_UPDATE_LOCK_DB_X/Y to the position before DP frame start 221 * REG_SET_2(OTG_GLOBAL_CONTROL1, 0, 222 * MASTER_UPDATE_LOCK_DB_X, 160, 223 * MASTER_UPDATE_LOCK_DB_Y, 240); 224 */ 225 226 ASSERT(opp_cnt == 2 || opp_cnt == 4); 227 228 /* 2 pieces of memory required for up to 5120 displays, 4 for up to 8192, 229 * however, for ODM combine we can simplify by always using 4. 230 */ 231 if (opp_cnt == 2) { 232 /* To make sure there's no memory overlap, each instance "reserves" 2 233 * memories and they are uniquely combined here. 234 */ 235 memory_mask = 0x3 << (opp_id[0] * 2) | 0x3 << (opp_id[1] * 2); 236 } else if (opp_cnt == 4) { 237 /* To make sure there's no memory overlap, each instance "reserves" 1 238 * memory and they are uniquely combined here. 239 */ 240 memory_mask = 0x1 << (opp_id[0] * 2) | 0x1 << (opp_id[1] * 2) | 0x1 << (opp_id[2] * 2) | 0x1 << (opp_id[3] * 2); 241 } 242 243 if (REG(OPTC_MEMORY_CONFIG)) 244 REG_SET(OPTC_MEMORY_CONFIG, 0, 245 OPTC_MEM_SEL, memory_mask); 246 247 if (opp_cnt == 2) { 248 REG_SET_3(OPTC_DATA_SOURCE_SELECT, 0, 249 OPTC_NUM_OF_INPUT_SEGMENT, 1, 250 OPTC_SEG0_SRC_SEL, opp_id[0], 251 OPTC_SEG1_SRC_SEL, opp_id[1]); 252 } else if (opp_cnt == 4) { 253 REG_SET_5(OPTC_DATA_SOURCE_SELECT, 0, 254 OPTC_NUM_OF_INPUT_SEGMENT, 3, 255 OPTC_SEG0_SRC_SEL, opp_id[0], 256 OPTC_SEG1_SRC_SEL, opp_id[1], 257 OPTC_SEG2_SRC_SEL, opp_id[2], 258 OPTC_SEG3_SRC_SEL, opp_id[3]); 259 } 260 261 REG_UPDATE(OPTC_WIDTH_CONTROL, 262 OPTC_SEGMENT_WIDTH, mpcc_hactive); 263 264 REG_SET(OTG_H_TIMING_CNTL, 0, OTG_H_TIMING_DIV_MODE, opp_cnt - 1); 265 optc1->opp_count = opp_cnt; 266 } 267 268 /** 269 * optc3_set_timing_double_buffer() - DRR double buffering control 270 * 271 * Sets double buffer point for V_TOTAL, H_TOTAL, VTOTAL_MIN, 272 * VTOTAL_MAX, VTOTAL_MIN_SEL and VTOTAL_MAX_SEL registers. 273 * 274 * Options: any time, start of frame, dp start of frame (range timing) 275 */ 276 static void optc3_set_timing_double_buffer(struct timing_generator *optc, bool enable) 277 { 278 struct optc *optc1 = DCN10TG_FROM_TG(optc); 279 uint32_t mode = enable ? 2 : 0; 280 281 REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL, 282 OTG_DRR_TIMING_DBUF_UPDATE_MODE, mode); 283 } 284 285 void optc3_tg_init(struct timing_generator *optc) 286 { 287 optc3_set_timing_double_buffer(optc, true); 288 optc1_clear_optc_underflow(optc); 289 } 290 291 static struct timing_generator_funcs dcn30_tg_funcs = { 292 .validate_timing = optc1_validate_timing, 293 .program_timing = optc1_program_timing, 294 .setup_vertical_interrupt0 = optc1_setup_vertical_interrupt0, 295 .setup_vertical_interrupt1 = optc1_setup_vertical_interrupt1, 296 .setup_vertical_interrupt2 = optc1_setup_vertical_interrupt2, 297 .program_global_sync = optc1_program_global_sync, 298 .enable_crtc = optc2_enable_crtc, 299 .disable_crtc = optc1_disable_crtc, 300 /* used by enable_timing_synchronization. Not need for FPGA */ 301 .is_counter_moving = optc1_is_counter_moving, 302 .get_position = optc1_get_position, 303 .get_frame_count = optc1_get_vblank_counter, 304 .get_scanoutpos = optc1_get_crtc_scanoutpos, 305 .get_otg_active_size = optc1_get_otg_active_size, 306 .set_early_control = optc1_set_early_control, 307 /* used by enable_timing_synchronization. Not need for FPGA */ 308 .wait_for_state = optc1_wait_for_state, 309 .set_blank_color = optc3_program_blank_color, 310 .did_triggered_reset_occur = optc1_did_triggered_reset_occur, 311 .triplebuffer_lock = optc3_triplebuffer_lock, 312 .triplebuffer_unlock = optc2_triplebuffer_unlock, 313 .enable_reset_trigger = optc1_enable_reset_trigger, 314 .enable_crtc_reset = optc1_enable_crtc_reset, 315 .disable_reset_trigger = optc1_disable_reset_trigger, 316 .lock = optc3_lock, 317 .is_locked = optc1_is_locked, 318 .unlock = optc1_unlock, 319 .lock_doublebuffer_enable = optc3_lock_doublebuffer_enable, 320 .lock_doublebuffer_disable = optc3_lock_doublebuffer_disable, 321 .enable_optc_clock = optc1_enable_optc_clock, 322 .set_drr = optc1_set_drr, 323 .get_last_used_drr_vtotal = optc2_get_last_used_drr_vtotal, 324 .set_static_screen_control = optc1_set_static_screen_control, 325 .program_stereo = optc1_program_stereo, 326 .is_stereo_left_eye = optc1_is_stereo_left_eye, 327 .tg_init = optc3_tg_init, 328 .is_tg_enabled = optc1_is_tg_enabled, 329 .is_optc_underflow_occurred = optc1_is_optc_underflow_occurred, 330 .clear_optc_underflow = optc1_clear_optc_underflow, 331 .setup_global_swap_lock = NULL, 332 .get_crc = optc1_get_crc, 333 .configure_crc = optc2_configure_crc, 334 .set_dsc_config = optc3_set_dsc_config, 335 .set_dwb_source = NULL, 336 .set_odm_bypass = optc3_set_odm_bypass, 337 .set_odm_combine = optc3_set_odm_combine, 338 .get_optc_source = optc2_get_optc_source, 339 .set_out_mux = optc3_set_out_mux, 340 .set_drr_trigger_window = optc3_set_drr_trigger_window, 341 .set_vtotal_change_limit = optc3_set_vtotal_change_limit, 342 .set_gsl = optc2_set_gsl, 343 .set_gsl_source_select = optc2_set_gsl_source_select, 344 .set_vtg_params = optc1_set_vtg_params, 345 .program_manual_trigger = optc2_program_manual_trigger, 346 .setup_manual_trigger = optc2_setup_manual_trigger, 347 .get_hw_timing = optc1_get_hw_timing, 348 }; 349 350 void dcn30_timing_generator_init(struct optc *optc1) 351 { 352 optc1->base.funcs = &dcn30_tg_funcs; 353 354 optc1->max_h_total = optc1->tg_mask->OTG_H_TOTAL + 1; 355 optc1->max_v_total = optc1->tg_mask->OTG_V_TOTAL + 1; 356 357 optc1->min_h_blank = 32; 358 optc1->min_v_blank = 3; 359 optc1->min_v_blank_interlace = 5; 360 optc1->min_h_sync_width = 4; 361 optc1->min_v_sync_width = 1; 362 } 363 364