1 /* 2 * Copyright 2021 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 "dccg.h" 27 #include "clk_mgr_internal.h" 28 29 #include "dcn32/dcn32_clk_mgr_smu_msg.h" 30 #include "dcn20/dcn20_clk_mgr.h" 31 #include "dce100/dce_clk_mgr.h" 32 #include "dcn31/dcn31_clk_mgr.h" 33 #include "reg_helper.h" 34 #include "core_types.h" 35 #include "dm_helpers.h" 36 #include "link.h" 37 38 #include "atomfirmware.h" 39 #include "smu13_driver_if.h" 40 41 #include "dcn/dcn_3_2_0_offset.h" 42 #include "dcn/dcn_3_2_0_sh_mask.h" 43 44 #include "dcn32/dcn32_clk_mgr.h" 45 #include "dml/dcn32/dcn32_fpu.h" 46 47 #define DCN_BASE__INST0_SEG1 0x000000C0 48 49 #define mmCLK1_CLK_PLL_REQ 0x16E37 50 #define mmCLK1_CLK0_DFS_CNTL 0x16E69 51 #define mmCLK1_CLK1_DFS_CNTL 0x16E6C 52 #define mmCLK1_CLK2_DFS_CNTL 0x16E6F 53 #define mmCLK1_CLK3_DFS_CNTL 0x16E72 54 #define mmCLK1_CLK4_DFS_CNTL 0x16E75 55 56 #define CLK1_CLK_PLL_REQ__FbMult_int_MASK 0x000001ffUL 57 #define CLK1_CLK_PLL_REQ__PllSpineDiv_MASK 0x0000f000UL 58 #define CLK1_CLK_PLL_REQ__FbMult_frac_MASK 0xffff0000UL 59 #define CLK1_CLK_PLL_REQ__FbMult_int__SHIFT 0x00000000 60 #define CLK1_CLK_PLL_REQ__PllSpineDiv__SHIFT 0x0000000c 61 #define CLK1_CLK_PLL_REQ__FbMult_frac__SHIFT 0x00000010 62 63 #define mmCLK01_CLK0_CLK_PLL_REQ 0x16E37 64 #define mmCLK01_CLK0_CLK0_DFS_CNTL 0x16E64 65 #define mmCLK01_CLK0_CLK1_DFS_CNTL 0x16E67 66 #define mmCLK01_CLK0_CLK2_DFS_CNTL 0x16E6A 67 #define mmCLK01_CLK0_CLK3_DFS_CNTL 0x16E6D 68 #define mmCLK01_CLK0_CLK4_DFS_CNTL 0x16E70 69 70 #define CLK0_CLK_PLL_REQ__FbMult_int_MASK 0x000001ffL 71 #define CLK0_CLK_PLL_REQ__PllSpineDiv_MASK 0x0000f000L 72 #define CLK0_CLK_PLL_REQ__FbMult_frac_MASK 0xffff0000L 73 #define CLK0_CLK_PLL_REQ__FbMult_int__SHIFT 0x00000000 74 #define CLK0_CLK_PLL_REQ__PllSpineDiv__SHIFT 0x0000000c 75 #define CLK0_CLK_PLL_REQ__FbMult_frac__SHIFT 0x00000010 76 77 #undef FN 78 #define FN(reg_name, field_name) \ 79 clk_mgr->clk_mgr_shift->field_name, clk_mgr->clk_mgr_mask->field_name 80 81 #define REG(reg) \ 82 (clk_mgr->regs->reg) 83 84 #define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg 85 86 #define BASE(seg) BASE_INNER(seg) 87 88 #define SR(reg_name)\ 89 .reg_name = BASE(reg ## reg_name ## _BASE_IDX) + \ 90 reg ## reg_name 91 92 #define CLK_SR_DCN32(reg_name)\ 93 .reg_name = mm ## reg_name 94 95 static const struct clk_mgr_registers clk_mgr_regs_dcn32 = { 96 CLK_REG_LIST_DCN32() 97 }; 98 99 static const struct clk_mgr_shift clk_mgr_shift_dcn32 = { 100 CLK_COMMON_MASK_SH_LIST_DCN32(__SHIFT) 101 }; 102 103 static const struct clk_mgr_mask clk_mgr_mask_dcn32 = { 104 CLK_COMMON_MASK_SH_LIST_DCN32(_MASK) 105 }; 106 107 108 #define CLK_SR_DCN321(reg_name, block, inst)\ 109 .reg_name = mm ## block ## _ ## reg_name 110 111 static const struct clk_mgr_registers clk_mgr_regs_dcn321 = { 112 CLK_REG_LIST_DCN321() 113 }; 114 115 static const struct clk_mgr_shift clk_mgr_shift_dcn321 = { 116 CLK_COMMON_MASK_SH_LIST_DCN321(__SHIFT) 117 }; 118 119 static const struct clk_mgr_mask clk_mgr_mask_dcn321 = { 120 CLK_COMMON_MASK_SH_LIST_DCN321(_MASK) 121 }; 122 123 124 /* Query SMU for all clock states for a particular clock */ dcn32_init_single_clock(struct clk_mgr_internal * clk_mgr,PPCLK_e clk,unsigned int * entry_0,unsigned int * num_levels)125 static void dcn32_init_single_clock(struct clk_mgr_internal *clk_mgr, PPCLK_e clk, unsigned int *entry_0, 126 unsigned int *num_levels) 127 { 128 unsigned int i; 129 char *entry_i = (char *)entry_0; 130 131 uint32_t ret = dcn30_smu_get_dpm_freq_by_index(clk_mgr, clk, 0xFF); 132 133 if (ret & (1 << 31)) 134 /* fine-grained, only min and max */ 135 *num_levels = 2; 136 else 137 /* discrete, a number of fixed states */ 138 /* will set num_levels to 0 on failure */ 139 *num_levels = ret & 0xFF; 140 141 /* if the initial message failed, num_levels will be 0 */ 142 for (i = 0; i < *num_levels; i++) { 143 *((unsigned int *)entry_i) = (dcn30_smu_get_dpm_freq_by_index(clk_mgr, clk, i) & 0xFFFF); 144 entry_i += sizeof(clk_mgr->base.bw_params->clk_table.entries[0]); 145 } 146 } 147 dcn32_build_wm_range_table(struct clk_mgr_internal * clk_mgr)148 static void dcn32_build_wm_range_table(struct clk_mgr_internal *clk_mgr) 149 { 150 DC_FP_START(); 151 dcn32_build_wm_range_table_fpu(clk_mgr); 152 DC_FP_END(); 153 } 154 dcn32_init_clocks(struct clk_mgr * clk_mgr_base)155 void dcn32_init_clocks(struct clk_mgr *clk_mgr_base) 156 { 157 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 158 unsigned int num_levels; 159 struct clk_limit_num_entries *num_entries_per_clk = &clk_mgr_base->bw_params->clk_table.num_entries_per_clk; 160 unsigned int i; 161 162 memset(&(clk_mgr_base->clks), 0, sizeof(struct dc_clocks)); 163 clk_mgr_base->clks.p_state_change_support = true; 164 clk_mgr_base->clks.prev_p_state_change_support = true; 165 clk_mgr_base->clks.fclk_prev_p_state_change_support = true; 166 clk_mgr->smu_present = false; 167 clk_mgr->dpm_present = false; 168 169 if (!clk_mgr_base->bw_params) 170 return; 171 172 if (!clk_mgr_base->force_smu_not_present && dcn30_smu_get_smu_version(clk_mgr, &clk_mgr->smu_ver)) 173 clk_mgr->smu_present = true; 174 175 if (!clk_mgr->smu_present) 176 return; 177 178 dcn30_smu_check_driver_if_version(clk_mgr); 179 dcn30_smu_check_msg_header_version(clk_mgr); 180 181 /* DCFCLK */ 182 dcn32_init_single_clock(clk_mgr, PPCLK_DCFCLK, 183 &clk_mgr_base->bw_params->clk_table.entries[0].dcfclk_mhz, 184 &num_entries_per_clk->num_dcfclk_levels); 185 clk_mgr_base->bw_params->dc_mode_limit.dcfclk_mhz = dcn30_smu_get_dc_mode_max_dpm_freq(clk_mgr, PPCLK_DCFCLK); 186 187 /* SOCCLK */ 188 dcn32_init_single_clock(clk_mgr, PPCLK_SOCCLK, 189 &clk_mgr_base->bw_params->clk_table.entries[0].socclk_mhz, 190 &num_entries_per_clk->num_socclk_levels); 191 clk_mgr_base->bw_params->dc_mode_limit.socclk_mhz = dcn30_smu_get_dc_mode_max_dpm_freq(clk_mgr, PPCLK_SOCCLK); 192 193 /* DTBCLK */ 194 if (!clk_mgr->base.ctx->dc->debug.disable_dtb_ref_clk_switch) { 195 dcn32_init_single_clock(clk_mgr, PPCLK_DTBCLK, 196 &clk_mgr_base->bw_params->clk_table.entries[0].dtbclk_mhz, 197 &num_entries_per_clk->num_dtbclk_levels); 198 clk_mgr_base->bw_params->dc_mode_limit.dtbclk_mhz = 199 dcn30_smu_get_dc_mode_max_dpm_freq(clk_mgr, PPCLK_DTBCLK); 200 } 201 202 /* DISPCLK */ 203 dcn32_init_single_clock(clk_mgr, PPCLK_DISPCLK, 204 &clk_mgr_base->bw_params->clk_table.entries[0].dispclk_mhz, 205 &num_entries_per_clk->num_dispclk_levels); 206 num_levels = num_entries_per_clk->num_dispclk_levels; 207 clk_mgr_base->bw_params->dc_mode_limit.dispclk_mhz = dcn30_smu_get_dc_mode_max_dpm_freq(clk_mgr, PPCLK_DISPCLK); 208 //HW recommends limit of 1950 MHz in display clock for all DCN3.2.x 209 if (clk_mgr_base->bw_params->dc_mode_limit.dispclk_mhz > 1950) 210 clk_mgr_base->bw_params->dc_mode_limit.dispclk_mhz = 1950; 211 212 if (num_entries_per_clk->num_dcfclk_levels && 213 num_entries_per_clk->num_dtbclk_levels && 214 num_entries_per_clk->num_dispclk_levels) 215 clk_mgr->dpm_present = true; 216 217 if (clk_mgr_base->ctx->dc->debug.min_disp_clk_khz) { 218 for (i = 0; i < num_levels; i++) 219 if (clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz 220 < khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_disp_clk_khz)) 221 clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz 222 = khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_disp_clk_khz); 223 } 224 for (i = 0; i < num_levels; i++) 225 if (clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz > 1950) 226 clk_mgr_base->bw_params->clk_table.entries[i].dispclk_mhz = 1950; 227 228 if (clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz) { 229 for (i = 0; i < num_levels; i++) 230 if (clk_mgr_base->bw_params->clk_table.entries[i].dppclk_mhz 231 < khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz)) 232 clk_mgr_base->bw_params->clk_table.entries[i].dppclk_mhz 233 = khz_to_mhz_ceil(clk_mgr_base->ctx->dc->debug.min_dpp_clk_khz); 234 } 235 236 /* Get UCLK, update bounding box */ 237 clk_mgr_base->funcs->get_memclk_states_from_smu(clk_mgr_base); 238 239 DC_FP_START(); 240 /* WM range table */ 241 dcn32_build_wm_range_table(clk_mgr); 242 DC_FP_END(); 243 } 244 dcn32_update_clocks_update_dtb_dto(struct clk_mgr_internal * clk_mgr,struct dc_state * context,int ref_dtbclk_khz)245 static void dcn32_update_clocks_update_dtb_dto(struct clk_mgr_internal *clk_mgr, 246 struct dc_state *context, 247 int ref_dtbclk_khz) 248 { 249 struct dccg *dccg = clk_mgr->dccg; 250 uint32_t tg_mask = 0; 251 int i; 252 253 for (i = 0; i < clk_mgr->base.ctx->dc->res_pool->pipe_count; i++) { 254 struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i]; 255 struct dtbclk_dto_params dto_params = {0}; 256 257 /* use mask to program DTO once per tg */ 258 if (pipe_ctx->stream_res.tg && 259 !(tg_mask & (1 << pipe_ctx->stream_res.tg->inst))) { 260 tg_mask |= (1 << pipe_ctx->stream_res.tg->inst); 261 262 dto_params.otg_inst = pipe_ctx->stream_res.tg->inst; 263 dto_params.ref_dtbclk_khz = ref_dtbclk_khz; 264 265 dccg->funcs->set_dtbclk_dto(clk_mgr->dccg, &dto_params); 266 //dccg->funcs->set_audio_dtbclk_dto(clk_mgr->dccg, &dto_params); 267 } 268 } 269 } 270 271 /* Since DPPCLK request to PMFW needs to be exact (due to DPP DTO programming), 272 * update DPPCLK to be the exact frequency that will be set after the DPPCLK 273 * divider is updated. This will prevent rounding issues that could cause DPP 274 * refclk and DPP DTO to not match up. 275 */ dcn32_update_dppclk_dispclk_freq(struct clk_mgr_internal * clk_mgr,struct dc_clocks * new_clocks)276 static void dcn32_update_dppclk_dispclk_freq(struct clk_mgr_internal *clk_mgr, struct dc_clocks *new_clocks) 277 { 278 int dpp_divider = 0; 279 int disp_divider = 0; 280 281 if (new_clocks->dppclk_khz) { 282 dpp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR 283 * clk_mgr->base.dentist_vco_freq_khz / new_clocks->dppclk_khz; 284 new_clocks->dppclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR * clk_mgr->base.dentist_vco_freq_khz) / dpp_divider; 285 } 286 if (new_clocks->dispclk_khz > 0) { 287 disp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR 288 * clk_mgr->base.dentist_vco_freq_khz / new_clocks->dispclk_khz; 289 new_clocks->dispclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR * clk_mgr->base.dentist_vco_freq_khz) / disp_divider; 290 } 291 } 292 dcn32_update_clocks_update_dpp_dto(struct clk_mgr_internal * clk_mgr,struct dc_state * context,bool safe_to_lower)293 void dcn32_update_clocks_update_dpp_dto(struct clk_mgr_internal *clk_mgr, 294 struct dc_state *context, bool safe_to_lower) 295 { 296 int i; 297 298 clk_mgr->dccg->ref_dppclk = clk_mgr->base.clks.dppclk_khz; 299 for (i = 0; i < clk_mgr->base.ctx->dc->res_pool->pipe_count; i++) { 300 int dpp_inst = 0, dppclk_khz, prev_dppclk_khz; 301 302 dppclk_khz = context->res_ctx.pipe_ctx[i].plane_res.bw.dppclk_khz; 303 304 if (context->res_ctx.pipe_ctx[i].plane_res.dpp) 305 dpp_inst = context->res_ctx.pipe_ctx[i].plane_res.dpp->inst; 306 else if (!context->res_ctx.pipe_ctx[i].plane_res.dpp && dppclk_khz == 0) { 307 /* dpp == NULL && dppclk_khz == 0 is valid because of pipe harvesting. 308 * In this case just continue in loop 309 */ 310 continue; 311 } else if (!context->res_ctx.pipe_ctx[i].plane_res.dpp && dppclk_khz > 0) { 312 /* The software state is not valid if dpp resource is NULL and 313 * dppclk_khz > 0. 314 */ 315 ASSERT(false); 316 continue; 317 } 318 319 prev_dppclk_khz = clk_mgr->dccg->pipe_dppclk_khz[i]; 320 321 if (safe_to_lower || prev_dppclk_khz < dppclk_khz) 322 clk_mgr->dccg->funcs->update_dpp_dto( 323 clk_mgr->dccg, dpp_inst, dppclk_khz); 324 } 325 } 326 dcn32_update_clocks_update_dentist(struct clk_mgr_internal * clk_mgr,struct dc_state * context)327 static void dcn32_update_clocks_update_dentist( 328 struct clk_mgr_internal *clk_mgr, 329 struct dc_state *context) 330 { 331 uint32_t new_disp_divider = 0; 332 uint32_t new_dispclk_wdivider = 0; 333 uint32_t old_dispclk_wdivider = 0; 334 uint32_t i; 335 uint32_t dentist_dispclk_wdivider_readback = 0; 336 struct dc *dc = clk_mgr->base.ctx->dc; 337 338 if (clk_mgr->base.clks.dispclk_khz == 0) 339 return; 340 341 new_disp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR 342 * clk_mgr->base.dentist_vco_freq_khz / clk_mgr->base.clks.dispclk_khz; 343 344 new_dispclk_wdivider = dentist_get_did_from_divider(new_disp_divider); 345 REG_GET(DENTIST_DISPCLK_CNTL, 346 DENTIST_DISPCLK_WDIVIDER, &old_dispclk_wdivider); 347 348 /* When changing divider to or from 127, some extra programming is required to prevent corruption */ 349 if (old_dispclk_wdivider == 127 && new_dispclk_wdivider != 127) { 350 for (i = 0; i < clk_mgr->base.ctx->dc->res_pool->pipe_count; i++) { 351 struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i]; 352 uint32_t fifo_level; 353 struct dccg *dccg = clk_mgr->base.ctx->dc->res_pool->dccg; 354 struct stream_encoder *stream_enc = pipe_ctx->stream_res.stream_enc; 355 int32_t N; 356 int32_t j; 357 358 if (!resource_is_pipe_type(pipe_ctx, OTG_MASTER)) 359 continue; 360 /* Virtual encoders don't have this function */ 361 if (!stream_enc->funcs->get_fifo_cal_average_level) 362 continue; 363 fifo_level = stream_enc->funcs->get_fifo_cal_average_level( 364 stream_enc); 365 N = fifo_level / 4; 366 dccg->funcs->set_fifo_errdet_ovr_en( 367 dccg, 368 true); 369 for (j = 0; j < N - 4; j++) 370 dccg->funcs->otg_drop_pixel( 371 dccg, 372 pipe_ctx->stream_res.tg->inst); 373 dccg->funcs->set_fifo_errdet_ovr_en( 374 dccg, 375 false); 376 } 377 } else if (new_dispclk_wdivider == 127 && old_dispclk_wdivider != 127) { 378 /* request clock with 126 divider first */ 379 uint32_t temp_disp_divider = dentist_get_divider_from_did(126); 380 uint32_t temp_dispclk_khz = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR * clk_mgr->base.dentist_vco_freq_khz) / temp_disp_divider; 381 382 if (clk_mgr->smu_present) 383 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, khz_to_mhz_ceil(temp_dispclk_khz)); 384 385 if (dc->debug.override_dispclk_programming) { 386 REG_GET(DENTIST_DISPCLK_CNTL, 387 DENTIST_DISPCLK_WDIVIDER, &dentist_dispclk_wdivider_readback); 388 389 if (dentist_dispclk_wdivider_readback != 126) { 390 REG_UPDATE(DENTIST_DISPCLK_CNTL, 391 DENTIST_DISPCLK_WDIVIDER, 126); 392 REG_WAIT(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_CHG_DONE, 1, 50, 2000); 393 } 394 } 395 396 for (i = 0; i < clk_mgr->base.ctx->dc->res_pool->pipe_count; i++) { 397 struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i]; 398 struct dccg *dccg = clk_mgr->base.ctx->dc->res_pool->dccg; 399 struct stream_encoder *stream_enc = pipe_ctx->stream_res.stream_enc; 400 uint32_t fifo_level; 401 int32_t N; 402 int32_t j; 403 404 if (!resource_is_pipe_type(pipe_ctx, OTG_MASTER)) 405 continue; 406 /* Virtual encoders don't have this function */ 407 if (!stream_enc->funcs->get_fifo_cal_average_level) 408 continue; 409 fifo_level = stream_enc->funcs->get_fifo_cal_average_level( 410 stream_enc); 411 N = fifo_level / 4; 412 dccg->funcs->set_fifo_errdet_ovr_en(dccg, true); 413 for (j = 0; j < 12 - N; j++) 414 dccg->funcs->otg_add_pixel(dccg, 415 pipe_ctx->stream_res.tg->inst); 416 dccg->funcs->set_fifo_errdet_ovr_en(dccg, false); 417 } 418 } 419 420 /* do requested DISPCLK updates*/ 421 if (clk_mgr->smu_present) 422 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DISPCLK, khz_to_mhz_ceil(clk_mgr->base.clks.dispclk_khz)); 423 424 if (dc->debug.override_dispclk_programming) { 425 REG_GET(DENTIST_DISPCLK_CNTL, 426 DENTIST_DISPCLK_WDIVIDER, &dentist_dispclk_wdivider_readback); 427 428 if (dentist_dispclk_wdivider_readback > new_dispclk_wdivider) { 429 REG_UPDATE(DENTIST_DISPCLK_CNTL, 430 DENTIST_DISPCLK_WDIVIDER, new_dispclk_wdivider); 431 REG_WAIT(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_CHG_DONE, 1, 50, 2000); 432 } 433 } 434 435 } 436 dcn32_get_dispclk_from_dentist(struct clk_mgr * clk_mgr_base)437 static int dcn32_get_dispclk_from_dentist(struct clk_mgr *clk_mgr_base) 438 { 439 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 440 uint32_t dispclk_wdivider; 441 int disp_divider; 442 443 REG_GET(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_WDIVIDER, &dispclk_wdivider); 444 disp_divider = dentist_get_divider_from_did(dispclk_wdivider); 445 446 /* Return DISPCLK freq in Khz */ 447 if (disp_divider) 448 return (DENTIST_DIVIDER_RANGE_SCALE_FACTOR * clk_mgr->base.dentist_vco_freq_khz) / disp_divider; 449 450 return 0; 451 } 452 453 dcn32_update_clocks(struct clk_mgr * clk_mgr_base,struct dc_state * context,bool safe_to_lower)454 static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base, 455 struct dc_state *context, 456 bool safe_to_lower) 457 { 458 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 459 struct dc_clocks *new_clocks = &context->bw_ctx.bw.dcn.clk; 460 struct dc *dc = clk_mgr_base->ctx->dc; 461 int display_count; 462 bool update_dppclk = false; 463 bool update_dispclk = false; 464 bool enter_display_off = false; 465 bool dpp_clock_lowered = false; 466 struct dmcu *dmcu = clk_mgr_base->ctx->dc->res_pool->dmcu; 467 bool force_reset = false; 468 bool update_uclk = false, update_fclk = false; 469 bool p_state_change_support; 470 bool fclk_p_state_change_support; 471 472 if (clk_mgr_base->clks.dispclk_khz == 0 || 473 (dc->debug.force_clock_mode & 0x1)) { 474 /* This is from resume or boot up, if forced_clock cfg option used, 475 * we bypass program dispclk and DPPCLK, but need set them for S3. 476 */ 477 force_reset = true; 478 479 dcn2_read_clocks_from_hw_dentist(clk_mgr_base); 480 481 /* Force_clock_mode 0x1: force reset the clock even it is the same clock 482 * as long as it is in Passive level. 483 */ 484 } 485 display_count = clk_mgr_helper_get_active_display_cnt(dc, context); 486 487 if (display_count == 0) 488 enter_display_off = true; 489 490 if (clk_mgr->smu_present) { 491 if (enter_display_off == safe_to_lower) 492 dcn30_smu_set_num_of_displays(clk_mgr, display_count); 493 494 clk_mgr_base->clks.fclk_prev_p_state_change_support = clk_mgr_base->clks.fclk_p_state_change_support; 495 496 fclk_p_state_change_support = new_clocks->fclk_p_state_change_support; 497 498 if (should_update_pstate_support(safe_to_lower, fclk_p_state_change_support, clk_mgr_base->clks.fclk_p_state_change_support) && 499 !dc->work_arounds.clock_update_disable_mask.fclk) { 500 clk_mgr_base->clks.fclk_p_state_change_support = fclk_p_state_change_support; 501 502 /* To enable FCLK P-state switching, send FCLK_PSTATE_SUPPORTED message to PMFW */ 503 if (clk_mgr_base->ctx->dce_version != DCN_VERSION_3_21 && clk_mgr_base->clks.fclk_p_state_change_support) { 504 /* Handle the code for sending a message to PMFW that FCLK P-state change is supported */ 505 dcn32_smu_send_fclk_pstate_message(clk_mgr, FCLK_PSTATE_SUPPORTED); 506 } 507 } 508 509 if (dc->debug.force_min_dcfclk_mhz > 0) 510 new_clocks->dcfclk_khz = (new_clocks->dcfclk_khz > (dc->debug.force_min_dcfclk_mhz * 1000)) ? 511 new_clocks->dcfclk_khz : (dc->debug.force_min_dcfclk_mhz * 1000); 512 513 if (should_set_clock(safe_to_lower, new_clocks->dcfclk_khz, clk_mgr_base->clks.dcfclk_khz) && 514 !dc->work_arounds.clock_update_disable_mask.dcfclk) { 515 clk_mgr_base->clks.dcfclk_khz = new_clocks->dcfclk_khz; 516 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DCFCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dcfclk_khz)); 517 } 518 519 if (should_set_clock(safe_to_lower, new_clocks->dcfclk_deep_sleep_khz, clk_mgr_base->clks.dcfclk_deep_sleep_khz) && 520 !dc->work_arounds.clock_update_disable_mask.dcfclk_ds) { 521 clk_mgr_base->clks.dcfclk_deep_sleep_khz = new_clocks->dcfclk_deep_sleep_khz; 522 dcn30_smu_set_min_deep_sleep_dcef_clk(clk_mgr, khz_to_mhz_ceil(clk_mgr_base->clks.dcfclk_deep_sleep_khz)); 523 } 524 525 if (should_set_clock(safe_to_lower, new_clocks->socclk_khz, clk_mgr_base->clks.socclk_khz)) 526 /* We don't actually care about socclk, don't notify SMU of hard min */ 527 clk_mgr_base->clks.socclk_khz = new_clocks->socclk_khz; 528 529 clk_mgr_base->clks.prev_p_state_change_support = clk_mgr_base->clks.p_state_change_support; 530 clk_mgr_base->clks.prev_num_ways = clk_mgr_base->clks.num_ways; 531 532 if (clk_mgr_base->clks.num_ways != new_clocks->num_ways && 533 clk_mgr_base->clks.num_ways < new_clocks->num_ways) { 534 clk_mgr_base->clks.num_ways = new_clocks->num_ways; 535 dcn32_smu_send_cab_for_uclk_message(clk_mgr, clk_mgr_base->clks.num_ways); 536 } 537 538 p_state_change_support = new_clocks->p_state_change_support; 539 if (should_update_pstate_support(safe_to_lower, p_state_change_support, clk_mgr_base->clks.p_state_change_support) && 540 !dc->work_arounds.clock_update_disable_mask.uclk) { 541 clk_mgr_base->clks.p_state_change_support = p_state_change_support; 542 543 /* to disable P-State switching, set UCLK min = max */ 544 if (!clk_mgr_base->clks.p_state_change_support) { 545 if (dc->clk_mgr->dc_mode_softmax_enabled) { 546 /* On DCN32x we will never have the functional UCLK min above the softmax 547 * since we calculate mode support based on softmax being the max UCLK 548 * frequency. 549 */ 550 if (dc->debug.disable_dc_mode_overwrite) { 551 dcn30_smu_set_hard_max_by_freq(clk_mgr, PPCLK_UCLK, dc->clk_mgr->bw_params->max_memclk_mhz); 552 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, dc->clk_mgr->bw_params->max_memclk_mhz); 553 } else 554 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, 555 dc->clk_mgr->bw_params->dc_mode_softmax_memclk); 556 } else { 557 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, dc->clk_mgr->bw_params->max_memclk_mhz); 558 } 559 } 560 } 561 562 if (context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching) 563 dcn32_smu_wait_for_dmub_ack_mclk(clk_mgr, true); 564 else 565 dcn32_smu_wait_for_dmub_ack_mclk(clk_mgr, false); 566 567 /* Always update saved value, even if new value not set due to P-State switching unsupported. Also check safe_to_lower for FCLK */ 568 if (safe_to_lower && (clk_mgr_base->clks.fclk_p_state_change_support != clk_mgr_base->clks.fclk_prev_p_state_change_support)) { 569 update_fclk = true; 570 } 571 572 if (clk_mgr_base->ctx->dce_version != DCN_VERSION_3_21 && !clk_mgr_base->clks.fclk_p_state_change_support && update_fclk && 573 !dc->work_arounds.clock_update_disable_mask.fclk) { 574 /* Handle code for sending a message to PMFW that FCLK P-state change is not supported */ 575 dcn32_smu_send_fclk_pstate_message(clk_mgr, FCLK_PSTATE_NOTSUPPORTED); 576 } 577 578 /* Always update saved value, even if new value not set due to P-State switching unsupported */ 579 if (should_set_clock(safe_to_lower, new_clocks->dramclk_khz, clk_mgr_base->clks.dramclk_khz) && 580 !dc->work_arounds.clock_update_disable_mask.uclk) { 581 clk_mgr_base->clks.dramclk_khz = new_clocks->dramclk_khz; 582 update_uclk = true; 583 } 584 585 /* set UCLK to requested value if P-State switching is supported, or to re-enable P-State switching */ 586 if (clk_mgr_base->clks.p_state_change_support && 587 (update_uclk || !clk_mgr_base->clks.prev_p_state_change_support) && 588 !dc->work_arounds.clock_update_disable_mask.uclk) { 589 if (dc->clk_mgr->dc_mode_softmax_enabled && dc->debug.disable_dc_mode_overwrite) 590 dcn30_smu_set_hard_max_by_freq(clk_mgr, PPCLK_UCLK, 591 max((int)dc->clk_mgr->bw_params->dc_mode_softmax_memclk, khz_to_mhz_ceil(clk_mgr_base->clks.dramclk_khz))); 592 593 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dramclk_khz)); 594 } 595 596 if (clk_mgr_base->clks.num_ways != new_clocks->num_ways && 597 clk_mgr_base->clks.num_ways > new_clocks->num_ways) { 598 clk_mgr_base->clks.num_ways = new_clocks->num_ways; 599 dcn32_smu_send_cab_for_uclk_message(clk_mgr, clk_mgr_base->clks.num_ways); 600 } 601 } 602 603 dcn32_update_dppclk_dispclk_freq(clk_mgr, new_clocks); 604 if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr_base->clks.dppclk_khz)) { 605 if (clk_mgr_base->clks.dppclk_khz > new_clocks->dppclk_khz) 606 dpp_clock_lowered = true; 607 608 clk_mgr_base->clks.dppclk_khz = new_clocks->dppclk_khz; 609 610 if (clk_mgr->smu_present && !dpp_clock_lowered) 611 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dppclk_khz)); 612 613 update_dppclk = true; 614 } 615 616 if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) { 617 clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz; 618 619 update_dispclk = true; 620 } 621 622 if (!new_clocks->dtbclk_en) { 623 new_clocks->ref_dtbclk_khz = clk_mgr_base->bw_params->clk_table.entries[0].dtbclk_mhz * 1000; 624 } 625 626 /* clock limits are received with MHz precision, divide by 1000 to prevent setting clocks at every call */ 627 if (!dc->debug.disable_dtb_ref_clk_switch && 628 should_set_clock(safe_to_lower, new_clocks->ref_dtbclk_khz / 1000, clk_mgr_base->clks.ref_dtbclk_khz / 1000)) { 629 /* DCCG requires KHz precision for DTBCLK */ 630 clk_mgr_base->clks.ref_dtbclk_khz = 631 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DTBCLK, khz_to_mhz_ceil(new_clocks->ref_dtbclk_khz)); 632 dcn32_update_clocks_update_dtb_dto(clk_mgr, context, clk_mgr_base->clks.ref_dtbclk_khz); 633 } 634 635 if (dc->config.forced_clocks == false || (force_reset && safe_to_lower)) { 636 if (dpp_clock_lowered) { 637 /* if clock is being lowered, increase DTO before lowering refclk */ 638 dcn32_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); 639 dcn32_update_clocks_update_dentist(clk_mgr, context); 640 if (clk_mgr->smu_present) 641 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_DPPCLK, khz_to_mhz_ceil(clk_mgr_base->clks.dppclk_khz)); 642 } else { 643 /* if clock is being raised, increase refclk before lowering DTO */ 644 if (update_dppclk || update_dispclk) 645 dcn32_update_clocks_update_dentist(clk_mgr, context); 646 /* There is a check inside dcn20_update_clocks_update_dpp_dto which ensures 647 * that we do not lower dto when it is not safe to lower. We do not need to 648 * compare the current and new dppclk before calling this function. 649 */ 650 dcn32_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); 651 } 652 } 653 654 if (update_dispclk && dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) 655 /*update dmcu for wait_loop count*/ 656 dmcu->funcs->set_psr_wait_loop(dmcu, 657 clk_mgr_base->clks.dispclk_khz / 1000 / 7); 658 } 659 dcn32_get_vco_frequency_from_reg(struct clk_mgr_internal * clk_mgr)660 static uint32_t dcn32_get_vco_frequency_from_reg(struct clk_mgr_internal *clk_mgr) 661 { 662 struct fixed31_32 pll_req; 663 uint32_t pll_req_reg = 0; 664 665 /* get FbMult value */ 666 if (ASICREV_IS_GC_11_0_2(clk_mgr->base.ctx->asic_id.hw_internal_rev)) 667 pll_req_reg = REG_READ(CLK0_CLK_PLL_REQ); 668 else 669 pll_req_reg = REG_READ(CLK1_CLK_PLL_REQ); 670 671 /* set up a fixed-point number 672 * this works because the int part is on the right edge of the register 673 * and the frac part is on the left edge 674 */ 675 pll_req = dc_fixpt_from_int(pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_int); 676 pll_req.value |= pll_req_reg & clk_mgr->clk_mgr_mask->FbMult_frac; 677 678 /* multiply by REFCLK period */ 679 pll_req = dc_fixpt_mul_int(pll_req, clk_mgr->dfs_ref_freq_khz); 680 681 return dc_fixpt_floor(pll_req); 682 } 683 dcn32_dump_clk_registers(struct clk_state_registers_and_bypass * regs_and_bypass,struct clk_mgr * clk_mgr_base,struct clk_log_info * log_info)684 static void dcn32_dump_clk_registers(struct clk_state_registers_and_bypass *regs_and_bypass, 685 struct clk_mgr *clk_mgr_base, struct clk_log_info *log_info) 686 { 687 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 688 uint32_t dprefclk_did = 0; 689 uint32_t dcfclk_did = 0; 690 uint32_t dtbclk_did = 0; 691 uint32_t dispclk_did = 0; 692 uint32_t dppclk_did = 0; 693 uint32_t target_div = 0; 694 695 if (ASICREV_IS_GC_11_0_2(clk_mgr->base.ctx->asic_id.hw_internal_rev)) { 696 /* DFS Slice 0 is used for DISPCLK */ 697 dispclk_did = REG_READ(CLK0_CLK0_DFS_CNTL); 698 /* DFS Slice 1 is used for DPPCLK */ 699 dppclk_did = REG_READ(CLK0_CLK1_DFS_CNTL); 700 /* DFS Slice 2 is used for DPREFCLK */ 701 dprefclk_did = REG_READ(CLK0_CLK2_DFS_CNTL); 702 /* DFS Slice 3 is used for DCFCLK */ 703 dcfclk_did = REG_READ(CLK0_CLK3_DFS_CNTL); 704 /* DFS Slice 4 is used for DTBCLK */ 705 dtbclk_did = REG_READ(CLK0_CLK4_DFS_CNTL); 706 } else { 707 /* DFS Slice 0 is used for DISPCLK */ 708 dispclk_did = REG_READ(CLK1_CLK0_DFS_CNTL); 709 /* DFS Slice 1 is used for DPPCLK */ 710 dppclk_did = REG_READ(CLK1_CLK1_DFS_CNTL); 711 /* DFS Slice 2 is used for DPREFCLK */ 712 dprefclk_did = REG_READ(CLK1_CLK2_DFS_CNTL); 713 /* DFS Slice 3 is used for DCFCLK */ 714 dcfclk_did = REG_READ(CLK1_CLK3_DFS_CNTL); 715 /* DFS Slice 4 is used for DTBCLK */ 716 dtbclk_did = REG_READ(CLK1_CLK4_DFS_CNTL); 717 } 718 719 /* Convert DISPCLK DFS Slice DID to divider*/ 720 target_div = dentist_get_divider_from_did(dispclk_did); 721 //Get dispclk in khz 722 regs_and_bypass->dispclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR 723 * clk_mgr->base.dentist_vco_freq_khz) / target_div; 724 725 /* Convert DISPCLK DFS Slice DID to divider*/ 726 target_div = dentist_get_divider_from_did(dppclk_did); 727 //Get dppclk in khz 728 regs_and_bypass->dppclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR 729 * clk_mgr->base.dentist_vco_freq_khz) / target_div; 730 731 /* Convert DPREFCLK DFS Slice DID to divider*/ 732 target_div = dentist_get_divider_from_did(dprefclk_did); 733 //Get dprefclk in khz 734 regs_and_bypass->dprefclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR 735 * clk_mgr->base.dentist_vco_freq_khz) / target_div; 736 737 /* Convert DCFCLK DFS Slice DID to divider*/ 738 target_div = dentist_get_divider_from_did(dcfclk_did); 739 //Get dcfclk in khz 740 regs_and_bypass->dcfclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR 741 * clk_mgr->base.dentist_vco_freq_khz) / target_div; 742 743 /* Convert DTBCLK DFS Slice DID to divider*/ 744 target_div = dentist_get_divider_from_did(dtbclk_did); 745 //Get dtbclk in khz 746 regs_and_bypass->dtbclk = (DENTIST_DIVIDER_RANGE_SCALE_FACTOR 747 * clk_mgr->base.dentist_vco_freq_khz) / target_div; 748 } 749 dcn32_clock_read_ss_info(struct clk_mgr_internal * clk_mgr)750 static void dcn32_clock_read_ss_info(struct clk_mgr_internal *clk_mgr) 751 { 752 struct dc_bios *bp = clk_mgr->base.ctx->dc_bios; 753 int ss_info_num = bp->funcs->get_ss_entry_number( 754 bp, AS_SIGNAL_TYPE_GPU_PLL); 755 756 if (ss_info_num) { 757 struct spread_spectrum_info info = { { 0 } }; 758 enum bp_result result = bp->funcs->get_spread_spectrum_info( 759 bp, AS_SIGNAL_TYPE_GPU_PLL, 0, &info); 760 761 /* SSInfo.spreadSpectrumPercentage !=0 would be sign 762 * that SS is enabled 763 */ 764 if (result == BP_RESULT_OK && 765 info.spread_spectrum_percentage != 0) { 766 clk_mgr->ss_on_dprefclk = true; 767 clk_mgr->dprefclk_ss_divider = info.spread_percentage_divider; 768 769 if (info.type.CENTER_MODE == 0) { 770 /* Currently for DP Reference clock we 771 * need only SS percentage for 772 * downspread 773 */ 774 clk_mgr->dprefclk_ss_percentage = 775 info.spread_spectrum_percentage; 776 } 777 } 778 } 779 } dcn32_notify_wm_ranges(struct clk_mgr * clk_mgr_base)780 static void dcn32_notify_wm_ranges(struct clk_mgr *clk_mgr_base) 781 { 782 unsigned int i; 783 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 784 WatermarksExternal_t *table = (WatermarksExternal_t *) clk_mgr->wm_range_table; 785 786 if (!clk_mgr->smu_present) 787 return; 788 789 if (!table) 790 return; 791 792 memset(table, 0, sizeof(*table)); 793 794 /* collect valid ranges, place in pmfw table */ 795 for (i = 0; i < WM_SET_COUNT; i++) 796 if (clk_mgr->base.bw_params->wm_table.nv_entries[i].valid) { 797 table->Watermarks.WatermarkRow[i].WmSetting = i; 798 table->Watermarks.WatermarkRow[i].Flags = clk_mgr->base.bw_params->wm_table.nv_entries[i].pmfw_breakdown.wm_type; 799 } 800 dcn30_smu_set_dram_addr_high(clk_mgr, clk_mgr->wm_range_table_addr >> 32); 801 dcn30_smu_set_dram_addr_low(clk_mgr, clk_mgr->wm_range_table_addr & 0xFFFFFFFF); 802 dcn32_smu_transfer_wm_table_dram_2_smu(clk_mgr); 803 } 804 805 /* Set min memclk to minimum, either constrained by the current mode or DPM0 */ dcn32_set_hard_min_memclk(struct clk_mgr * clk_mgr_base,bool current_mode)806 static void dcn32_set_hard_min_memclk(struct clk_mgr *clk_mgr_base, bool current_mode) 807 { 808 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 809 810 if (!clk_mgr->smu_present) 811 return; 812 813 if (current_mode) { 814 if (clk_mgr_base->clks.p_state_change_support) 815 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, 816 khz_to_mhz_ceil(clk_mgr_base->clks.dramclk_khz)); 817 else 818 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, 819 clk_mgr_base->bw_params->max_memclk_mhz); 820 } else { 821 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, 822 clk_mgr_base->bw_params->clk_table.entries[0].memclk_mhz); 823 } 824 } 825 826 /* Set max memclk to highest DPM value */ dcn32_set_hard_max_memclk(struct clk_mgr * clk_mgr_base)827 static void dcn32_set_hard_max_memclk(struct clk_mgr *clk_mgr_base) 828 { 829 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 830 831 if (!clk_mgr->smu_present) 832 return; 833 834 dcn30_smu_set_hard_max_by_freq(clk_mgr, PPCLK_UCLK, clk_mgr_base->bw_params->max_memclk_mhz); 835 } 836 837 /* Get current memclk states, update bounding box */ dcn32_get_memclk_states_from_smu(struct clk_mgr * clk_mgr_base)838 static void dcn32_get_memclk_states_from_smu(struct clk_mgr *clk_mgr_base) 839 { 840 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 841 struct clk_limit_num_entries *num_entries_per_clk = &clk_mgr_base->bw_params->clk_table.num_entries_per_clk; 842 unsigned int num_levels; 843 844 if (!clk_mgr->smu_present) 845 return; 846 847 /* Refresh memclk and fclk states */ 848 dcn32_init_single_clock(clk_mgr, PPCLK_UCLK, 849 &clk_mgr_base->bw_params->clk_table.entries[0].memclk_mhz, 850 &num_entries_per_clk->num_memclk_levels); 851 clk_mgr_base->bw_params->dc_mode_limit.memclk_mhz = dcn30_smu_get_dc_mode_max_dpm_freq(clk_mgr, PPCLK_UCLK); 852 clk_mgr_base->bw_params->dc_mode_softmax_memclk = clk_mgr_base->bw_params->dc_mode_limit.memclk_mhz; 853 854 /* memclk must have at least one level */ 855 num_entries_per_clk->num_memclk_levels = num_entries_per_clk->num_memclk_levels ? num_entries_per_clk->num_memclk_levels : 1; 856 857 dcn32_init_single_clock(clk_mgr, PPCLK_FCLK, 858 &clk_mgr_base->bw_params->clk_table.entries[0].fclk_mhz, 859 &num_entries_per_clk->num_fclk_levels); 860 clk_mgr_base->bw_params->dc_mode_limit.fclk_mhz = dcn30_smu_get_dc_mode_max_dpm_freq(clk_mgr, PPCLK_FCLK); 861 862 if (num_entries_per_clk->num_memclk_levels >= num_entries_per_clk->num_fclk_levels) { 863 num_levels = num_entries_per_clk->num_memclk_levels; 864 } else { 865 num_levels = num_entries_per_clk->num_fclk_levels; 866 } 867 clk_mgr_base->bw_params->max_memclk_mhz = 868 clk_mgr_base->bw_params->clk_table.entries[num_entries_per_clk->num_memclk_levels - 1].memclk_mhz; 869 clk_mgr_base->bw_params->clk_table.num_entries = num_levels ? num_levels : 1; 870 871 if (clk_mgr->dpm_present && !num_levels) 872 clk_mgr->dpm_present = false; 873 874 if (!clk_mgr->dpm_present) 875 dcn32_patch_dpm_table(clk_mgr_base->bw_params); 876 877 DC_FP_START(); 878 /* Refresh bounding box */ 879 clk_mgr_base->ctx->dc->res_pool->funcs->update_bw_bounding_box( 880 clk_mgr->base.ctx->dc, clk_mgr_base->bw_params); 881 DC_FP_END(); 882 } 883 dcn32_are_clock_states_equal(struct dc_clocks * a,struct dc_clocks * b)884 static bool dcn32_are_clock_states_equal(struct dc_clocks *a, 885 struct dc_clocks *b) 886 { 887 if (a->dispclk_khz != b->dispclk_khz) 888 return false; 889 else if (a->dppclk_khz != b->dppclk_khz) 890 return false; 891 else if (a->dcfclk_khz != b->dcfclk_khz) 892 return false; 893 else if (a->dcfclk_deep_sleep_khz != b->dcfclk_deep_sleep_khz) 894 return false; 895 else if (a->dramclk_khz != b->dramclk_khz) 896 return false; 897 else if (a->p_state_change_support != b->p_state_change_support) 898 return false; 899 else if (a->fclk_p_state_change_support != b->fclk_p_state_change_support) 900 return false; 901 902 return true; 903 } 904 dcn32_enable_pme_wa(struct clk_mgr * clk_mgr_base)905 static void dcn32_enable_pme_wa(struct clk_mgr *clk_mgr_base) 906 { 907 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 908 909 if (!clk_mgr->smu_present) 910 return; 911 912 dcn32_smu_set_pme_workaround(clk_mgr); 913 } 914 dcn32_is_smu_present(struct clk_mgr * clk_mgr_base)915 static bool dcn32_is_smu_present(struct clk_mgr *clk_mgr_base) 916 { 917 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 918 return clk_mgr->smu_present; 919 } 920 dcn32_set_max_memclk(struct clk_mgr * clk_mgr_base,unsigned int memclk_mhz)921 static void dcn32_set_max_memclk(struct clk_mgr *clk_mgr_base, unsigned int memclk_mhz) 922 { 923 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 924 925 if (!clk_mgr->smu_present) 926 return; 927 928 dcn30_smu_set_hard_max_by_freq(clk_mgr, PPCLK_UCLK, memclk_mhz); 929 } 930 dcn32_set_min_memclk(struct clk_mgr * clk_mgr_base,unsigned int memclk_mhz)931 static void dcn32_set_min_memclk(struct clk_mgr *clk_mgr_base, unsigned int memclk_mhz) 932 { 933 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 934 935 if (!clk_mgr->smu_present) 936 return; 937 938 dcn32_smu_set_hard_min_by_freq(clk_mgr, PPCLK_UCLK, memclk_mhz); 939 } 940 941 static struct clk_mgr_funcs dcn32_funcs = { 942 .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz, 943 .get_dtb_ref_clk_frequency = dcn31_get_dtb_ref_freq_khz, 944 .update_clocks = dcn32_update_clocks, 945 .dump_clk_registers = dcn32_dump_clk_registers, 946 .init_clocks = dcn32_init_clocks, 947 .notify_wm_ranges = dcn32_notify_wm_ranges, 948 .set_hard_min_memclk = dcn32_set_hard_min_memclk, 949 .set_hard_max_memclk = dcn32_set_hard_max_memclk, 950 .set_max_memclk = dcn32_set_max_memclk, 951 .set_min_memclk = dcn32_set_min_memclk, 952 .get_memclk_states_from_smu = dcn32_get_memclk_states_from_smu, 953 .are_clock_states_equal = dcn32_are_clock_states_equal, 954 .enable_pme_wa = dcn32_enable_pme_wa, 955 .is_smu_present = dcn32_is_smu_present, 956 .get_dispclk_from_dentist = dcn32_get_dispclk_from_dentist, 957 }; 958 dcn32_clk_mgr_construct(struct dc_context * ctx,struct clk_mgr_internal * clk_mgr,struct pp_smu_funcs * pp_smu,struct dccg * dccg)959 void dcn32_clk_mgr_construct( 960 struct dc_context *ctx, 961 struct clk_mgr_internal *clk_mgr, 962 struct pp_smu_funcs *pp_smu, 963 struct dccg *dccg) 964 { 965 struct clk_log_info log_info = {0}; 966 967 clk_mgr->base.ctx = ctx; 968 clk_mgr->base.funcs = &dcn32_funcs; 969 if (ASICREV_IS_GC_11_0_2(clk_mgr->base.ctx->asic_id.hw_internal_rev)) { 970 clk_mgr->regs = &clk_mgr_regs_dcn321; 971 clk_mgr->clk_mgr_shift = &clk_mgr_shift_dcn321; 972 clk_mgr->clk_mgr_mask = &clk_mgr_mask_dcn321; 973 } else { 974 clk_mgr->regs = &clk_mgr_regs_dcn32; 975 clk_mgr->clk_mgr_shift = &clk_mgr_shift_dcn32; 976 clk_mgr->clk_mgr_mask = &clk_mgr_mask_dcn32; 977 } 978 979 clk_mgr->dccg = dccg; 980 clk_mgr->dfs_bypass_disp_clk = 0; 981 982 clk_mgr->dprefclk_ss_percentage = 0; 983 clk_mgr->dprefclk_ss_divider = 1000; 984 clk_mgr->ss_on_dprefclk = false; 985 clk_mgr->dfs_ref_freq_khz = 100000; 986 987 /* Changed from DCN3.2_clock_frequency doc to match 988 * dcn32_dump_clk_registers from 4 * dentist_vco_freq_khz / 989 * dprefclk DID divider 990 */ 991 clk_mgr->base.dprefclk_khz = 716666; 992 if (ctx->dc->debug.disable_dtb_ref_clk_switch) { 993 //initialize DTB ref clock value if DPM disabled 994 if (ctx->dce_version == DCN_VERSION_3_21) 995 clk_mgr->base.clks.ref_dtbclk_khz = 477800; 996 else 997 clk_mgr->base.clks.ref_dtbclk_khz = 268750; 998 } 999 1000 1001 /* integer part is now VCO frequency in kHz */ 1002 clk_mgr->base.dentist_vco_freq_khz = dcn32_get_vco_frequency_from_reg(clk_mgr); 1003 1004 /* in case we don't get a value from the register, use default */ 1005 if (clk_mgr->base.dentist_vco_freq_khz == 0) 1006 clk_mgr->base.dentist_vco_freq_khz = 4300000; /* Updated as per HW docs */ 1007 1008 dcn32_dump_clk_registers(&clk_mgr->base.boot_snapshot, &clk_mgr->base, &log_info); 1009 1010 if (ctx->dc->debug.disable_dtb_ref_clk_switch && 1011 clk_mgr->base.clks.ref_dtbclk_khz != clk_mgr->base.boot_snapshot.dtbclk) { 1012 clk_mgr->base.clks.ref_dtbclk_khz = clk_mgr->base.boot_snapshot.dtbclk; 1013 } 1014 1015 if (clk_mgr->base.boot_snapshot.dprefclk != 0) { 1016 clk_mgr->base.dprefclk_khz = clk_mgr->base.boot_snapshot.dprefclk; 1017 } 1018 dcn32_clock_read_ss_info(clk_mgr); 1019 1020 clk_mgr->dfs_bypass_enabled = false; 1021 1022 clk_mgr->smu_present = false; 1023 1024 clk_mgr->base.bw_params = kzalloc(sizeof(*clk_mgr->base.bw_params), GFP_KERNEL); 1025 if (!clk_mgr->base.bw_params) { 1026 BREAK_TO_DEBUGGER(); 1027 return; 1028 } 1029 1030 /* need physical address of table to give to PMFW */ 1031 clk_mgr->wm_range_table = dm_helpers_allocate_gpu_mem(clk_mgr->base.ctx, 1032 DC_MEM_ALLOC_TYPE_GART, sizeof(WatermarksExternal_t), 1033 &clk_mgr->wm_range_table_addr); 1034 if (!clk_mgr->wm_range_table) { 1035 BREAK_TO_DEBUGGER(); 1036 return; 1037 } 1038 } 1039 dcn32_clk_mgr_destroy(struct clk_mgr_internal * clk_mgr)1040 void dcn32_clk_mgr_destroy(struct clk_mgr_internal *clk_mgr) 1041 { 1042 kfree(clk_mgr->base.bw_params); 1043 1044 if (clk_mgr->wm_range_table) 1045 dm_helpers_free_gpu_mem(clk_mgr->base.ctx, DC_MEM_ALLOC_TYPE_GART, 1046 clk_mgr->wm_range_table); 1047 } 1048 1049