1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright 2023 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 "display_mode_core.h" 28 #include "dml2_internal_types.h" 29 #include "dml2_utils.h" 30 #include "dml2_policy.h" 31 #include "dml2_translation_helper.h" 32 #include "dml2_mall_phantom.h" 33 #include "dml2_dc_resource_mgmt.h" 34 35 36 static void initialize_dml2_ip_params(struct dml2_context *dml2, const struct dc *in_dc, struct ip_params_st *out) 37 { 38 if (dml2->config.use_native_soc_bb_construction) 39 dml2_init_ip_params(dml2, in_dc, out); 40 else 41 dml2_translate_ip_params(in_dc, out); 42 } 43 44 static void initialize_dml2_soc_bbox(struct dml2_context *dml2, const struct dc *in_dc, struct soc_bounding_box_st *out) 45 { 46 if (dml2->config.use_native_soc_bb_construction) 47 dml2_init_socbb_params(dml2, in_dc, out); 48 else 49 dml2_translate_socbb_params(in_dc, out); 50 } 51 52 static void initialize_dml2_soc_states(struct dml2_context *dml2, 53 const struct dc *in_dc, const struct soc_bounding_box_st *in_bbox, struct soc_states_st *out) 54 { 55 if (dml2->config.use_native_soc_bb_construction) 56 dml2_init_soc_states(dml2, in_dc, in_bbox, out); 57 else 58 dml2_translate_soc_states(in_dc, out, in_dc->dml.soc.num_states); 59 } 60 61 static void map_hw_resources(struct dml2_context *dml2, 62 struct dml_display_cfg_st *in_out_display_cfg, struct dml_mode_support_info_st *mode_support_info) 63 { 64 unsigned int num_pipes = 0; 65 int i, j; 66 67 for (i = 0; i < __DML_NUM_PLANES__; i++) { 68 in_out_display_cfg->hw.ODMMode[i] = mode_support_info->ODMMode[i]; 69 in_out_display_cfg->hw.DPPPerSurface[i] = mode_support_info->DPPPerSurface[i]; 70 in_out_display_cfg->hw.DSCEnabled[i] = mode_support_info->DSCEnabled[i]; 71 in_out_display_cfg->hw.NumberOfDSCSlices[i] = mode_support_info->NumberOfDSCSlices[i]; 72 in_out_display_cfg->hw.DLGRefClkFreqMHz = 24; 73 if (dml2->v20.dml_core_ctx.project != dml_project_dcn35 && 74 dml2->v20.dml_core_ctx.project != dml_project_dcn351) { 75 /*dGPU default as 50Mhz*/ 76 in_out_display_cfg->hw.DLGRefClkFreqMHz = 50; 77 } 78 for (j = 0; j < mode_support_info->DPPPerSurface[i]; j++) { 79 if (i >= __DML2_WRAPPER_MAX_STREAMS_PLANES__) { 80 dml_print("DML::%s: Index out of bounds: i=%d, __DML2_WRAPPER_MAX_STREAMS_PLANES__=%d\n", 81 __func__, i, __DML2_WRAPPER_MAX_STREAMS_PLANES__); 82 break; 83 } 84 dml2->v20.scratch.dml_to_dc_pipe_mapping.dml_pipe_idx_to_stream_id[num_pipes] = dml2->v20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_stream_id[i]; 85 dml2->v20.scratch.dml_to_dc_pipe_mapping.dml_pipe_idx_to_stream_id_valid[num_pipes] = true; 86 dml2->v20.scratch.dml_to_dc_pipe_mapping.dml_pipe_idx_to_plane_id[num_pipes] = dml2->v20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_plane_id[i]; 87 dml2->v20.scratch.dml_to_dc_pipe_mapping.dml_pipe_idx_to_plane_id_valid[num_pipes] = true; 88 num_pipes++; 89 } 90 } 91 } 92 93 static unsigned int pack_and_call_dml_mode_support_ex(struct dml2_context *dml2, 94 const struct dml_display_cfg_st *display_cfg, 95 struct dml_mode_support_info_st *evaluation_info) 96 { 97 struct dml2_wrapper_scratch *s = &dml2->v20.scratch; 98 99 s->mode_support_params.mode_lib = &dml2->v20.dml_core_ctx; 100 s->mode_support_params.in_display_cfg = display_cfg; 101 s->mode_support_params.out_evaluation_info = evaluation_info; 102 103 memset(evaluation_info, 0, sizeof(struct dml_mode_support_info_st)); 104 s->mode_support_params.out_lowest_state_idx = 0; 105 106 return dml_mode_support_ex(&s->mode_support_params); 107 } 108 109 static bool optimize_configuration(struct dml2_context *dml2, struct dml2_wrapper_optimize_configuration_params *p) 110 { 111 int unused_dpps = p->ip_params->max_num_dpp; 112 int i, j; 113 int odms_needed, refresh_rate_hz, dpps_needed, subvp_height, pstate_width_fw_delay_lines, surface_count; 114 int subvp_timing_to_add, new_timing_index, subvp_surface_to_add, new_surface_index; 115 float frame_time_sec, max_frame_time_sec; 116 int largest_blend_and_timing = 0; 117 bool optimization_done = false; 118 119 for (i = 0; i < (int) p->cur_display_config->num_timings; i++) { 120 if (p->cur_display_config->plane.BlendingAndTiming[i] > largest_blend_and_timing) 121 largest_blend_and_timing = p->cur_display_config->plane.BlendingAndTiming[i]; 122 } 123 124 if (p->new_policy != p->cur_policy) 125 *p->new_policy = *p->cur_policy; 126 127 if (p->new_display_config != p->cur_display_config) 128 *p->new_display_config = *p->cur_display_config; 129 130 // Optimize P-State Support 131 if (dml2->config.use_native_pstate_optimization) { 132 if (p->cur_mode_support_info->DRAMClockChangeSupport[0] == dml_dram_clock_change_unsupported) { 133 // Find a display with < 120Hz refresh rate with maximal refresh rate that's not already subvp 134 subvp_timing_to_add = -1; 135 subvp_surface_to_add = -1; 136 max_frame_time_sec = 0; 137 surface_count = 0; 138 for (i = 0; i < (int) p->cur_display_config->num_timings; i++) { 139 refresh_rate_hz = (int)div_u64((unsigned long long) p->cur_display_config->timing.PixelClock[i] * 1000 * 1000, 140 (p->cur_display_config->timing.HTotal[i] * p->cur_display_config->timing.VTotal[i])); 141 if (refresh_rate_hz < 120) { 142 // Check its upstream surfaces to see if this one could be converted to subvp. 143 dpps_needed = 0; 144 for (j = 0; j < (int) p->cur_display_config->num_surfaces; j++) { 145 if (p->cur_display_config->plane.BlendingAndTiming[j] == i && 146 p->cur_display_config->plane.UseMALLForPStateChange[j] == dml_use_mall_pstate_change_disable) { 147 dpps_needed += p->cur_mode_support_info->DPPPerSurface[j]; 148 subvp_surface_to_add = j; 149 surface_count++; 150 } 151 } 152 153 if (surface_count == 1 && dpps_needed > 0 && dpps_needed <= unused_dpps) { 154 frame_time_sec = (float)1 / refresh_rate_hz; 155 if (frame_time_sec > max_frame_time_sec) { 156 max_frame_time_sec = frame_time_sec; 157 subvp_timing_to_add = i; 158 } 159 } 160 } 161 } 162 if (subvp_timing_to_add >= 0) { 163 new_timing_index = p->new_display_config->num_timings++; 164 new_surface_index = p->new_display_config->num_surfaces++; 165 // Add a phantom pipe reflecting the main pipe's timing 166 dml2_util_copy_dml_timing(&p->new_display_config->timing, new_timing_index, subvp_timing_to_add); 167 168 pstate_width_fw_delay_lines = (int)(((double)(p->config->svp_pstate.subvp_fw_processing_delay_us + 169 p->config->svp_pstate.subvp_pstate_allow_width_us) / 1000000) * 170 (p->new_display_config->timing.PixelClock[subvp_timing_to_add] * 1000 * 1000) / 171 (double)p->new_display_config->timing.HTotal[subvp_timing_to_add]); 172 173 subvp_height = p->cur_mode_support_info->SubViewportLinesNeededInMALL[subvp_timing_to_add] + pstate_width_fw_delay_lines; 174 175 p->new_display_config->timing.VActive[new_timing_index] = subvp_height; 176 p->new_display_config->timing.VTotal[new_timing_index] = subvp_height + 177 p->new_display_config->timing.VTotal[subvp_timing_to_add] - p->new_display_config->timing.VActive[subvp_timing_to_add]; 178 179 p->new_display_config->output.OutputDisabled[new_timing_index] = true; 180 181 p->new_display_config->plane.UseMALLForPStateChange[subvp_surface_to_add] = dml_use_mall_pstate_change_sub_viewport; 182 183 dml2_util_copy_dml_plane(&p->new_display_config->plane, new_surface_index, subvp_surface_to_add); 184 dml2_util_copy_dml_surface(&p->new_display_config->surface, new_surface_index, subvp_surface_to_add); 185 186 p->new_display_config->plane.ViewportHeight[new_surface_index] = subvp_height; 187 p->new_display_config->plane.ViewportHeightChroma[new_surface_index] = subvp_height; 188 p->new_display_config->plane.ViewportStationary[new_surface_index] = false; 189 190 p->new_display_config->plane.UseMALLForStaticScreen[new_surface_index] = dml_use_mall_static_screen_disable; 191 p->new_display_config->plane.UseMALLForPStateChange[new_surface_index] = dml_use_mall_pstate_change_phantom_pipe; 192 193 p->new_display_config->plane.NumberOfCursors[new_surface_index] = 0; 194 195 p->new_policy->ImmediateFlipRequirement[new_surface_index] = dml_immediate_flip_not_required; 196 197 p->new_display_config->plane.BlendingAndTiming[new_surface_index] = new_timing_index; 198 199 optimization_done = true; 200 } 201 } 202 } 203 204 // Optimize Clocks 205 if (!optimization_done) { 206 if (largest_blend_and_timing == 0 && p->cur_policy->ODMUse[0] == dml_odm_use_policy_combine_as_needed && dml2->config.minimize_dispclk_using_odm) { 207 odms_needed = dml2_util_get_maximum_odm_combine_for_output(dml2->config.optimize_odm_4to1, 208 p->cur_display_config->output.OutputEncoder[0], p->cur_mode_support_info->DSCEnabled[0]) - 1; 209 210 if (odms_needed <= unused_dpps) { 211 unused_dpps -= odms_needed; 212 213 if (odms_needed == 1) { 214 p->new_policy->ODMUse[0] = dml_odm_use_policy_combine_2to1; 215 optimization_done = true; 216 } else if (odms_needed == 3) { 217 p->new_policy->ODMUse[0] = dml_odm_use_policy_combine_4to1; 218 optimization_done = true; 219 } else 220 optimization_done = false; 221 } 222 } 223 } 224 225 return optimization_done; 226 } 227 228 static int calculate_lowest_supported_state_for_temp_read(struct dml2_context *dml2, struct dc_state *display_state) 229 { 230 struct dml2_calculate_lowest_supported_state_for_temp_read_scratch *s = &dml2->v20.scratch.dml2_calculate_lowest_supported_state_for_temp_read_scratch; 231 struct dml2_wrapper_scratch *s_global = &dml2->v20.scratch; 232 233 unsigned int dml_result = 0; 234 int result = -1, i, j; 235 236 build_unoptimized_policy_settings(dml2->v20.dml_core_ctx.project, &dml2->v20.dml_core_ctx.policy); 237 238 /* Zero out before each call before proceeding */ 239 memset(s, 0, sizeof(struct dml2_calculate_lowest_supported_state_for_temp_read_scratch)); 240 memset(&s_global->mode_support_params, 0, sizeof(struct dml_mode_support_ex_params_st)); 241 memset(&s_global->dml_to_dc_pipe_mapping, 0, sizeof(struct dml2_dml_to_dc_pipe_mapping)); 242 243 for (i = 0; i < dml2->config.dcn_pipe_count; i++) { 244 /* Calling resource_build_scaling_params will populate the pipe params 245 * with the necessary information needed for correct DML calculations 246 * This is also done in DML1 driver code path and hence display_state 247 * cannot be const. 248 */ 249 struct pipe_ctx *pipe = &display_state->res_ctx.pipe_ctx[i]; 250 251 if (pipe->plane_state) { 252 if (!dml2->config.callbacks.build_scaling_params(pipe)) { 253 ASSERT(false); 254 return false; 255 } 256 } 257 } 258 259 map_dc_state_into_dml_display_cfg(dml2, display_state, &s->cur_display_config); 260 261 for (i = 0; i < dml2->v20.dml_core_ctx.states.num_states; i++) { 262 s->uclk_change_latencies[i] = dml2->v20.dml_core_ctx.states.state_array[i].dram_clock_change_latency_us; 263 } 264 265 for (i = 0; i < 4; i++) { 266 for (j = 0; j < dml2->v20.dml_core_ctx.states.num_states; j++) { 267 dml2->v20.dml_core_ctx.states.state_array[j].dram_clock_change_latency_us = s_global->dummy_pstate_table[i].dummy_pstate_latency_us; 268 } 269 270 dml_result = pack_and_call_dml_mode_support_ex(dml2, &s->cur_display_config, &s->evaluation_info); 271 272 if (dml_result && s->evaluation_info.DRAMClockChangeSupport[0] == dml_dram_clock_change_vactive) { 273 map_hw_resources(dml2, &s->cur_display_config, &s->evaluation_info); 274 dml_result = dml_mode_programming(&dml2->v20.dml_core_ctx, s_global->mode_support_params.out_lowest_state_idx, &s->cur_display_config, true); 275 276 ASSERT(dml_result); 277 278 dml2_extract_watermark_set(&dml2->v20.g6_temp_read_watermark_set, &dml2->v20.dml_core_ctx); 279 dml2->v20.g6_temp_read_watermark_set.cstate_pstate.fclk_pstate_change_ns = dml2->v20.g6_temp_read_watermark_set.cstate_pstate.pstate_change_ns; 280 281 result = s_global->mode_support_params.out_lowest_state_idx; 282 283 while (dml2->v20.dml_core_ctx.states.state_array[result].dram_speed_mts < s_global->dummy_pstate_table[i].dram_speed_mts) 284 result++; 285 286 break; 287 } 288 } 289 290 for (i = 0; i < dml2->v20.dml_core_ctx.states.num_states; i++) { 291 dml2->v20.dml_core_ctx.states.state_array[i].dram_clock_change_latency_us = s->uclk_change_latencies[i]; 292 } 293 294 return result; 295 } 296 297 static void copy_dummy_pstate_table(struct dummy_pstate_entry *dest, struct dummy_pstate_entry *src, unsigned int num_entries) 298 { 299 for (int i = 0; i < num_entries; i++) { 300 dest[i] = src[i]; 301 } 302 } 303 304 static bool are_timings_requiring_odm_doing_blending(const struct dml_display_cfg_st *display_cfg, 305 const struct dml_mode_support_info_st *evaluation_info) 306 { 307 unsigned int planes_per_timing[__DML_NUM_PLANES__] = {0}; 308 int i; 309 310 for (i = 0; i < display_cfg->num_surfaces; i++) 311 planes_per_timing[display_cfg->plane.BlendingAndTiming[i]]++; 312 313 for (i = 0; i < __DML_NUM_PLANES__; i++) { 314 if (planes_per_timing[i] > 1 && evaluation_info->ODMMode[i] != dml_odm_mode_bypass) 315 return true; 316 } 317 318 return false; 319 } 320 321 static bool does_configuration_meet_sw_policies(struct dml2_context *ctx, const struct dml_display_cfg_st *display_cfg, 322 const struct dml_mode_support_info_st *evaluation_info) 323 { 324 bool pass = true; 325 326 if (!ctx->config.enable_windowed_mpo_odm) { 327 if (are_timings_requiring_odm_doing_blending(display_cfg, evaluation_info)) 328 pass = false; 329 } 330 331 return pass; 332 } 333 334 static bool dml_mode_support_wrapper(struct dml2_context *dml2, 335 struct dc_state *display_state) 336 { 337 struct dml2_wrapper_scratch *s = &dml2->v20.scratch; 338 unsigned int result = 0, i; 339 unsigned int optimized_result = true; 340 341 build_unoptimized_policy_settings(dml2->v20.dml_core_ctx.project, &dml2->v20.dml_core_ctx.policy); 342 343 /* Zero out before each call before proceeding */ 344 memset(&s->cur_display_config, 0, sizeof(struct dml_display_cfg_st)); 345 memset(&s->mode_support_params, 0, sizeof(struct dml_mode_support_ex_params_st)); 346 memset(&s->dml_to_dc_pipe_mapping, 0, sizeof(struct dml2_dml_to_dc_pipe_mapping)); 347 memset(&s->optimize_configuration_params, 0, sizeof(struct dml2_wrapper_optimize_configuration_params)); 348 349 for (i = 0; i < dml2->config.dcn_pipe_count; i++) { 350 /* Calling resource_build_scaling_params will populate the pipe params 351 * with the necessary information needed for correct DML calculations 352 * This is also done in DML1 driver code path and hence display_state 353 * cannot be const. 354 */ 355 struct pipe_ctx *pipe = &display_state->res_ctx.pipe_ctx[i]; 356 357 if (pipe->plane_state) { 358 if (!dml2->config.callbacks.build_scaling_params(pipe)) { 359 ASSERT(false); 360 return false; 361 } 362 } 363 } 364 365 map_dc_state_into_dml_display_cfg(dml2, display_state, &s->cur_display_config); 366 if (!dml2->config.skip_hw_state_mapping) 367 dml2_apply_det_buffer_allocation_policy(dml2, &s->cur_display_config); 368 369 result = pack_and_call_dml_mode_support_ex(dml2, 370 &s->cur_display_config, 371 &s->mode_support_info); 372 373 if (result) 374 result = does_configuration_meet_sw_policies(dml2, &s->cur_display_config, &s->mode_support_info); 375 376 // Try to optimize 377 if (result) { 378 s->cur_policy = dml2->v20.dml_core_ctx.policy; 379 s->optimize_configuration_params.dml_core_ctx = &dml2->v20.dml_core_ctx; 380 s->optimize_configuration_params.config = &dml2->config; 381 s->optimize_configuration_params.ip_params = &dml2->v20.dml_core_ctx.ip; 382 s->optimize_configuration_params.cur_display_config = &s->cur_display_config; 383 s->optimize_configuration_params.cur_mode_support_info = &s->mode_support_info; 384 s->optimize_configuration_params.cur_policy = &s->cur_policy; 385 s->optimize_configuration_params.new_display_config = &s->new_display_config; 386 s->optimize_configuration_params.new_policy = &s->new_policy; 387 388 while (optimized_result && optimize_configuration(dml2, &s->optimize_configuration_params)) { 389 dml2->v20.dml_core_ctx.policy = s->new_policy; 390 optimized_result = pack_and_call_dml_mode_support_ex(dml2, 391 &s->new_display_config, 392 &s->mode_support_info); 393 394 if (optimized_result) 395 optimized_result = does_configuration_meet_sw_policies(dml2, &s->new_display_config, &s->mode_support_info); 396 397 // If the new optimized state is supposed, then set current = new 398 if (optimized_result) { 399 s->cur_display_config = s->new_display_config; 400 s->cur_policy = s->new_policy; 401 } else { 402 // Else, restore policy to current 403 dml2->v20.dml_core_ctx.policy = s->cur_policy; 404 } 405 } 406 407 // Optimize ended with a failed config, so we need to restore DML state to last passing 408 if (!optimized_result) { 409 result = pack_and_call_dml_mode_support_ex(dml2, 410 &s->cur_display_config, 411 &s->mode_support_info); 412 } 413 } 414 415 if (result) 416 map_hw_resources(dml2, &s->cur_display_config, &s->mode_support_info); 417 418 return result; 419 } 420 421 static int find_drr_eligible_stream(struct dc_state *display_state) 422 { 423 int i; 424 425 for (i = 0; i < display_state->stream_count; i++) { 426 if (dc_state_get_stream_subvp_type(display_state, display_state->streams[i]) == SUBVP_NONE 427 && display_state->streams[i]->ignore_msa_timing_param) { 428 // Use ignore_msa_timing_param flag to identify as DRR 429 return i; 430 } 431 } 432 433 return -1; 434 } 435 436 static bool optimize_pstate_with_svp_and_drr(struct dml2_context *dml2, struct dc_state *display_state) 437 { 438 struct dml2_wrapper_scratch *s = &dml2->v20.scratch; 439 bool pstate_optimization_done = false; 440 bool pstate_optimization_success = false; 441 bool result = false; 442 int drr_display_index = 0, non_svp_streams = 0; 443 bool force_svp = dml2->config.svp_pstate.force_enable_subvp; 444 bool advanced_pstate_switching = false; 445 446 display_state->bw_ctx.bw.dcn.clk.fw_based_mclk_switching = false; 447 display_state->bw_ctx.bw.dcn.legacy_svp_drr_stream_index_valid = false; 448 449 result = dml_mode_support_wrapper(dml2, display_state); 450 451 if (!result) { 452 pstate_optimization_done = true; 453 } else if (!advanced_pstate_switching || 454 (s->mode_support_info.DRAMClockChangeSupport[0] != dml_dram_clock_change_unsupported && !force_svp)) { 455 pstate_optimization_success = true; 456 pstate_optimization_done = true; 457 } 458 459 if (display_state->stream_count == 1 && dml2->config.callbacks.can_support_mclk_switch_using_fw_based_vblank_stretch(dml2->config.callbacks.dc, display_state)) { 460 display_state->bw_ctx.bw.dcn.clk.fw_based_mclk_switching = true; 461 462 result = dml_mode_support_wrapper(dml2, display_state); 463 } else { 464 non_svp_streams = display_state->stream_count; 465 466 while (!pstate_optimization_done) { 467 result = dml_mode_programming(&dml2->v20.dml_core_ctx, s->mode_support_params.out_lowest_state_idx, &s->cur_display_config, true); 468 469 // Always try adding SVP first 470 if (result) 471 result = dml2_svp_add_phantom_pipe_to_dc_state(dml2, display_state, &s->mode_support_info); 472 else 473 pstate_optimization_done = true; 474 475 476 if (result) { 477 result = dml_mode_support_wrapper(dml2, display_state); 478 } else { 479 pstate_optimization_done = true; 480 } 481 482 if (result) { 483 non_svp_streams--; 484 485 if (s->mode_support_info.DRAMClockChangeSupport[0] != dml_dram_clock_change_unsupported) { 486 if (dml2_svp_validate_static_schedulability(dml2, display_state, s->mode_support_info.DRAMClockChangeSupport[0])) { 487 pstate_optimization_success = true; 488 pstate_optimization_done = true; 489 } else { 490 pstate_optimization_success = false; 491 pstate_optimization_done = false; 492 } 493 } else { 494 drr_display_index = find_drr_eligible_stream(display_state); 495 496 // If there is only 1 remaining non SubVP pipe that is DRR, check static 497 // schedulability for SubVP + DRR. 498 if (non_svp_streams == 1 && drr_display_index >= 0) { 499 if (dml2_svp_drr_schedulable(dml2, display_state, &display_state->streams[drr_display_index]->timing)) { 500 display_state->bw_ctx.bw.dcn.legacy_svp_drr_stream_index_valid = true; 501 display_state->bw_ctx.bw.dcn.legacy_svp_drr_stream_index = drr_display_index; 502 result = dml_mode_support_wrapper(dml2, display_state); 503 } 504 505 if (result && s->mode_support_info.DRAMClockChangeSupport[0] != dml_dram_clock_change_unsupported) { 506 pstate_optimization_success = true; 507 pstate_optimization_done = true; 508 } else { 509 pstate_optimization_success = false; 510 pstate_optimization_done = false; 511 } 512 } 513 514 if (pstate_optimization_success) { 515 pstate_optimization_done = true; 516 } else { 517 pstate_optimization_done = false; 518 } 519 } 520 } 521 } 522 } 523 524 if (!pstate_optimization_success) { 525 dml2_svp_remove_all_phantom_pipes(dml2, display_state); 526 display_state->bw_ctx.bw.dcn.clk.fw_based_mclk_switching = false; 527 display_state->bw_ctx.bw.dcn.legacy_svp_drr_stream_index_valid = false; 528 result = dml_mode_support_wrapper(dml2, display_state); 529 } 530 531 return result; 532 } 533 534 static bool call_dml_mode_support_and_programming(struct dc_state *context) 535 { 536 unsigned int result = 0; 537 unsigned int min_state; 538 int min_state_for_g6_temp_read = 0; 539 struct dml2_context *dml2 = context->bw_ctx.dml2; 540 struct dml2_wrapper_scratch *s = &dml2->v20.scratch; 541 542 min_state_for_g6_temp_read = calculate_lowest_supported_state_for_temp_read(dml2, context); 543 544 ASSERT(min_state_for_g6_temp_read >= 0); 545 546 if (!dml2->config.use_native_pstate_optimization) { 547 result = optimize_pstate_with_svp_and_drr(dml2, context); 548 } else { 549 result = dml_mode_support_wrapper(dml2, context); 550 } 551 552 /* Upon trying to sett certain frequencies in FRL, min_state_for_g6_temp_read is reported as -1. This leads to an invalid value of min_state causing crashes later on. 553 * Use the default logic for min_state only when min_state_for_g6_temp_read is a valid value. In other cases, use the value calculated by the DML directly. 554 */ 555 if (min_state_for_g6_temp_read >= 0) 556 min_state = min_state_for_g6_temp_read > s->mode_support_params.out_lowest_state_idx ? min_state_for_g6_temp_read : s->mode_support_params.out_lowest_state_idx; 557 else 558 min_state = s->mode_support_params.out_lowest_state_idx; 559 560 if (result) 561 result = dml_mode_programming(&dml2->v20.dml_core_ctx, min_state, &s->cur_display_config, true); 562 563 return result; 564 } 565 566 static bool dml2_validate_and_build_resource(const struct dc *in_dc, struct dc_state *context) 567 { 568 struct dml2_context *dml2 = context->bw_ctx.dml2; 569 struct dml2_wrapper_scratch *s = &dml2->v20.scratch; 570 struct dml2_dcn_clocks out_clks; 571 unsigned int result = 0; 572 bool need_recalculation = false; 573 574 if (!context || context->stream_count == 0) 575 return true; 576 577 /* Zero out before each call before proceeding */ 578 memset(&dml2->v20.scratch, 0, sizeof(struct dml2_wrapper_scratch)); 579 memset(&dml2->v20.dml_core_ctx.policy, 0, sizeof(struct dml_mode_eval_policy_st)); 580 memset(&dml2->v20.dml_core_ctx.ms, 0, sizeof(struct mode_support_st)); 581 memset(&dml2->v20.dml_core_ctx.mp, 0, sizeof(struct mode_program_st)); 582 583 /* Initialize DET scratch */ 584 dml2_initialize_det_scratch(dml2); 585 586 copy_dummy_pstate_table(s->dummy_pstate_table, in_dc->clk_mgr->bw_params->dummy_pstate_table, 4); 587 588 result = call_dml_mode_support_and_programming(context); 589 /* Call map dc pipes to map the pipes based on the DML output. For correctly determining if recalculation 590 * is required or not, the resource context needs to correctly reflect the number of active pipes. We would 591 * only know the correct number if active pipes after dml2_map_dc_pipes is called. 592 */ 593 if (result && !dml2->config.skip_hw_state_mapping) 594 dml2_map_dc_pipes(dml2, context, &s->cur_display_config, &s->dml_to_dc_pipe_mapping, in_dc->current_state); 595 596 /* Verify and update DET Buffer configuration if needed. dml2_verify_det_buffer_configuration will check if DET Buffer 597 * size needs to be updated. If yes it will update the DETOverride variable and set need_recalculation flag to true. 598 * Based on that flag, run mode support again. Verification needs to be run after dml_mode_programming because the getters 599 * return correct det buffer values only after dml_mode_programming is called. 600 */ 601 if (result && !dml2->config.skip_hw_state_mapping) { 602 need_recalculation = dml2_verify_det_buffer_configuration(dml2, context, &dml2->det_helper_scratch); 603 if (need_recalculation) { 604 /* Engage the DML again if recalculation is required. */ 605 call_dml_mode_support_and_programming(context); 606 if (!dml2->config.skip_hw_state_mapping) { 607 dml2_map_dc_pipes(dml2, context, &s->cur_display_config, &s->dml_to_dc_pipe_mapping, in_dc->current_state); 608 } 609 need_recalculation = dml2_verify_det_buffer_configuration(dml2, context, &dml2->det_helper_scratch); 610 ASSERT(need_recalculation == false); 611 } 612 } 613 614 if (result) { 615 unsigned int lowest_state_idx = s->mode_support_params.out_lowest_state_idx; 616 out_clks.dispclk_khz = (unsigned int)dml2->v20.dml_core_ctx.mp.Dispclk_calculated * 1000; 617 out_clks.p_state_supported = s->mode_support_info.DRAMClockChangeSupport[0] != dml_dram_clock_change_unsupported; 618 if (in_dc->config.use_default_clock_table && 619 (lowest_state_idx < dml2->v20.dml_core_ctx.states.num_states - 1)) { 620 lowest_state_idx = dml2->v20.dml_core_ctx.states.num_states - 1; 621 out_clks.dispclk_khz = (unsigned int)dml2->v20.dml_core_ctx.states.state_array[lowest_state_idx].dispclk_mhz * 1000; 622 } 623 624 out_clks.dcfclk_khz = (unsigned int)dml2->v20.dml_core_ctx.states.state_array[lowest_state_idx].dcfclk_mhz * 1000; 625 out_clks.fclk_khz = (unsigned int)dml2->v20.dml_core_ctx.states.state_array[lowest_state_idx].fabricclk_mhz * 1000; 626 out_clks.uclk_mts = (unsigned int)dml2->v20.dml_core_ctx.states.state_array[lowest_state_idx].dram_speed_mts; 627 out_clks.phyclk_khz = (unsigned int)dml2->v20.dml_core_ctx.states.state_array[lowest_state_idx].phyclk_mhz * 1000; 628 out_clks.socclk_khz = (unsigned int)dml2->v20.dml_core_ctx.states.state_array[lowest_state_idx].socclk_mhz * 1000; 629 out_clks.ref_dtbclk_khz = (unsigned int)dml2->v20.dml_core_ctx.states.state_array[lowest_state_idx].dtbclk_mhz * 1000; 630 context->bw_ctx.bw.dcn.clk.dtbclk_en = is_dtbclk_required(in_dc, context); 631 632 if (!dml2->config.skip_hw_state_mapping) { 633 /* Call dml2_calculate_rq_and_dlg_params */ 634 dml2_calculate_rq_and_dlg_params(in_dc, context, &context->res_ctx, dml2, in_dc->res_pool->pipe_count); 635 } 636 637 dml2_copy_clocks_to_dc_state(&out_clks, context); 638 dml2_extract_watermark_set(&context->bw_ctx.bw.dcn.watermarks.a, &dml2->v20.dml_core_ctx); 639 dml2_extract_watermark_set(&context->bw_ctx.bw.dcn.watermarks.b, &dml2->v20.dml_core_ctx); 640 memcpy(&context->bw_ctx.bw.dcn.watermarks.c, &dml2->v20.g6_temp_read_watermark_set, sizeof(context->bw_ctx.bw.dcn.watermarks.c)); 641 dml2_extract_watermark_set(&context->bw_ctx.bw.dcn.watermarks.d, &dml2->v20.dml_core_ctx); 642 //copy for deciding zstate use 643 context->bw_ctx.dml.vba.StutterPeriod = context->bw_ctx.dml2->v20.dml_core_ctx.mp.StutterPeriod; 644 } 645 646 return result; 647 } 648 649 static bool dml2_validate_only(struct dc_state *context) 650 { 651 struct dml2_context *dml2 = context->bw_ctx.dml2; 652 unsigned int result = 0; 653 654 if (!context || context->stream_count == 0) 655 return true; 656 657 /* Zero out before each call before proceeding */ 658 memset(&dml2->v20.scratch, 0, sizeof(struct dml2_wrapper_scratch)); 659 memset(&dml2->v20.dml_core_ctx.policy, 0, sizeof(struct dml_mode_eval_policy_st)); 660 memset(&dml2->v20.dml_core_ctx.ms, 0, sizeof(struct mode_support_st)); 661 memset(&dml2->v20.dml_core_ctx.mp, 0, sizeof(struct mode_program_st)); 662 663 build_unoptimized_policy_settings(dml2->v20.dml_core_ctx.project, &dml2->v20.dml_core_ctx.policy); 664 665 map_dc_state_into_dml_display_cfg(dml2, context, &dml2->v20.scratch.cur_display_config); 666 667 result = pack_and_call_dml_mode_support_ex(dml2, 668 &dml2->v20.scratch.cur_display_config, 669 &dml2->v20.scratch.mode_support_info); 670 671 if (result) 672 result = does_configuration_meet_sw_policies(dml2, &dml2->v20.scratch.cur_display_config, &dml2->v20.scratch.mode_support_info); 673 674 return (result == 1) ? true : false; 675 } 676 677 static void dml2_apply_debug_options(const struct dc *dc, struct dml2_context *dml2) 678 { 679 if (dc->debug.override_odm_optimization) { 680 dml2->config.minimize_dispclk_using_odm = dc->debug.minimize_dispclk_using_odm; 681 } 682 } 683 684 bool dml2_validate(const struct dc *in_dc, struct dc_state *context, bool fast_validate) 685 { 686 bool out = false; 687 688 if (!(context->bw_ctx.dml2)) 689 return false; 690 dml2_apply_debug_options(in_dc, context->bw_ctx.dml2); 691 692 693 /* Use dml_validate_only for fast_validate path */ 694 if (fast_validate) 695 out = dml2_validate_only(context); 696 else 697 out = dml2_validate_and_build_resource(in_dc, context); 698 return out; 699 } 700 701 static inline struct dml2_context *dml2_allocate_memory(void) 702 { 703 return (struct dml2_context *) kzalloc(sizeof(struct dml2_context), GFP_KERNEL); 704 } 705 706 static void dml2_init(const struct dc *in_dc, const struct dml2_configuration_options *config, struct dml2_context **dml2) 707 { 708 709 // Store config options 710 (*dml2)->config = *config; 711 712 switch (in_dc->ctx->dce_version) { 713 case DCN_VERSION_3_5: 714 (*dml2)->v20.dml_core_ctx.project = dml_project_dcn35; 715 break; 716 case DCN_VERSION_3_51: 717 (*dml2)->v20.dml_core_ctx.project = dml_project_dcn351; 718 break; 719 case DCN_VERSION_3_2: 720 (*dml2)->v20.dml_core_ctx.project = dml_project_dcn32; 721 break; 722 case DCN_VERSION_3_21: 723 (*dml2)->v20.dml_core_ctx.project = dml_project_dcn321; 724 break; 725 default: 726 (*dml2)->v20.dml_core_ctx.project = dml_project_default; 727 break; 728 } 729 730 initialize_dml2_ip_params(*dml2, in_dc, &(*dml2)->v20.dml_core_ctx.ip); 731 732 initialize_dml2_soc_bbox(*dml2, in_dc, &(*dml2)->v20.dml_core_ctx.soc); 733 734 initialize_dml2_soc_states(*dml2, in_dc, &(*dml2)->v20.dml_core_ctx.soc, &(*dml2)->v20.dml_core_ctx.states); 735 } 736 737 bool dml2_create(const struct dc *in_dc, const struct dml2_configuration_options *config, struct dml2_context **dml2) 738 { 739 // Allocate Mode Lib Ctx 740 *dml2 = dml2_allocate_memory(); 741 742 if (!(*dml2)) 743 return false; 744 745 dml2_init(in_dc, config, dml2); 746 747 return true; 748 } 749 750 void dml2_destroy(struct dml2_context *dml2) 751 { 752 if (!dml2) 753 return; 754 755 kfree(dml2); 756 } 757 758 void dml2_extract_dram_and_fclk_change_support(struct dml2_context *dml2, 759 unsigned int *fclk_change_support, unsigned int *dram_clk_change_support) 760 { 761 *fclk_change_support = (unsigned int) dml2->v20.dml_core_ctx.ms.support.FCLKChangeSupport[0]; 762 *dram_clk_change_support = (unsigned int) dml2->v20.dml_core_ctx.ms.support.DRAMClockChangeSupport[0]; 763 } 764 765 void dml2_copy(struct dml2_context *dst_dml2, 766 struct dml2_context *src_dml2) 767 { 768 /* copy Mode Lib Ctx */ 769 memcpy(dst_dml2, src_dml2, sizeof(struct dml2_context)); 770 } 771 772 bool dml2_create_copy(struct dml2_context **dst_dml2, 773 struct dml2_context *src_dml2) 774 { 775 /* Allocate Mode Lib Ctx */ 776 *dst_dml2 = dml2_allocate_memory(); 777 778 if (!(*dst_dml2)) 779 return false; 780 781 /* copy Mode Lib Ctx */ 782 dml2_copy(*dst_dml2, src_dml2); 783 784 return true; 785 } 786 787 void dml2_reinit(const struct dc *in_dc, 788 const struct dml2_configuration_options *config, 789 struct dml2_context **dml2) 790 { 791 792 dml2_init(in_dc, config, dml2); 793 } 794