drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.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
  28
  29 #include "dcn314_clk_mgr.h"
  30
  31 #include "dccg.h"
  32 #include "clk_mgr_internal.h"
  33
  34 // For dce12_get_dp_ref_freq_khz
  35 #include "dce100/dce_clk_mgr.h"
  36
  37 // For dcn20_update_clocks_update_dpp_dto
  38 #include "dcn20/dcn20_clk_mgr.h"
  39
  40
  41
  42 #include "reg_helper.h"
  43 #include "core_types.h"
  44 #include "dm_helpers.h"
  45
  46 /* TODO: remove this include once we ported over remaining clk mgr functions*/
  47 #include "dcn30/dcn30_clk_mgr.h"
  48 #include "dcn31/dcn31_clk_mgr.h"
  49
  50 #include "dc_dmub_srv.h"
  51 #include "dc_link_dp.h"
  52 #include "dcn314_smu.h"
  53
  54 #define MAX_INSTANCE                                        7
  55 #define MAX_SEGMENT                                         8
  56
  57 struct IP_BASE_INSTANCE {
  58         unsigned int segment[MAX_SEGMENT];
  59 };
  60
  61 struct IP_BASE {
  62         struct IP_BASE_INSTANCE instance[MAX_INSTANCE];
  63 };
  64
  65 static const struct IP_BASE CLK_BASE = { { { { 0x00016C00, 0x02401800, 0, 0, 0, 0, 0, 0 } },
  66                                         { { 0x00016E00, 0x02401C00, 0, 0, 0, 0, 0, 0 } },
  67                                         { { 0x00017000, 0x02402000, 0, 0, 0, 0, 0, 0 } },
  68                                         { { 0x00017200, 0x02402400, 0, 0, 0, 0, 0, 0 } },
  69                                         { { 0x0001B000, 0x0242D800, 0, 0, 0, 0, 0, 0 } },
  70                                         { { 0x0001B200, 0x0242DC00, 0, 0, 0, 0, 0, 0 } },
  71                                         { { 0x0001B400, 0x0242E000, 0, 0, 0, 0, 0, 0 } } } };
  72
  73 #define regCLK1_CLK_PLL_REQ                     0x0237
  74 #define regCLK1_CLK_PLL_REQ_BASE_IDX            0
  75
  76 #define CLK1_CLK_PLL_REQ__FbMult_int__SHIFT     0x0
  77 #define CLK1_CLK_PLL_REQ__PllSpineDiv__SHIFT    0xc
  78 #define CLK1_CLK_PLL_REQ__FbMult_frac__SHIFT    0x10
  79 #define CLK1_CLK_PLL_REQ__FbMult_int_MASK       0x000001FFL
  80 #define CLK1_CLK_PLL_REQ__PllSpineDiv_MASK      0x0000F000L
  81 #define CLK1_CLK_PLL_REQ__FbMult_frac_MASK      0xFFFF0000L
  82
  83 #define REG(reg_name) \
  84         (CLK_BASE.instance[0].segment[reg ## reg_name ## _BASE_IDX] + reg ## reg_name)
  85
  86 #define TO_CLK_MGR_DCN314(clk_mgr)\
  87         container_of(clk_mgr, struct clk_mgr_dcn314, base)
  88
  89 static int dcn314_get_active_display_cnt_wa(
  90                 struct dc *dc,
  91                 struct dc_state *context)
  92 {
  93         int i, display_count;
  94         bool tmds_present = false;
  95
  96         display_count = 0;
  97         for (i = 0; i < context->stream_count; i++) {
  98                 const struct dc_stream_state *stream = context->streams[i];
  99
 100                 if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A ||
 101                                 stream->signal == SIGNAL_TYPE_DVI_SINGLE_LINK ||
 102                                 stream->signal == SIGNAL_TYPE_DVI_DUAL_LINK)
 103                         tmds_present = true;
 104         }
 105
 106         for (i = 0; i < dc->link_count; i++) {
 107                 const struct dc_link *link = dc->links[i];
 108
 109                 /* abusing the fact that the dig and phy are coupled to see if the phy is enabled */
 110                 if (link->link_enc && link->link_enc->funcs->is_dig_enabled &&
 111                                 link->link_enc->funcs->is_dig_enabled(link->link_enc))
 112                         display_count++;
 113         }
 114
 115         /* WA for hang on HDMI after display off back on*/
 116         if (display_count == 0 && tmds_present)
 117                 display_count = 1;
 118
 119         return display_count;
 120 }
 121
 122 static void dcn314_disable_otg_wa(struct clk_mgr *clk_mgr_base, bool disable)
 123 {
 124         struct dc *dc = clk_mgr_base->ctx->dc;
 125         int i;
 126
 127         for (i = 0; i < dc->res_pool->pipe_count; ++i) {
 128                 struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
 129
 130                 if (pipe->top_pipe || pipe->prev_odm_pipe)
 131                         continue;
 132                 if (pipe->stream && (pipe->stream->dpms_off || pipe->plane_state == NULL ||
 133                                      dc_is_virtual_signal(pipe->stream->signal))) {
 134                         if (disable)
 135                                 pipe->stream_res.tg->funcs->immediate_disable_crtc(pipe->stream_res.tg);
 136                         else
 137                                 pipe->stream_res.tg->funcs->enable_crtc(pipe->stream_res.tg);
 138                 }
 139         }
 140 }
 141
 142 void dcn314_update_clocks(struct clk_mgr *clk_mgr_base,
 143                         struct dc_state *context,
 144                         bool safe_to_lower)
 145 {
 146         union dmub_rb_cmd cmd;
 147         struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base);
 148         struct dc_clocks *new_clocks = &context->bw_ctx.bw.dcn.clk;
 149         struct dc *dc = clk_mgr_base->ctx->dc;
 150         int display_count;
 151         bool update_dppclk = false;
 152         bool update_dispclk = false;
 153         bool dpp_clock_lowered = false;
 154
 155         if (dc->work_arounds.skip_clock_update)
 156                 return;
 157
 158         /*
 159          * if it is safe to lower, but we are already in the lower state, we don't have to do anything
 160          * also if safe to lower is false, we just go in the higher state
 161          */
 162         if (safe_to_lower) {
 163                 if (new_clocks->zstate_support != DCN_ZSTATE_SUPPORT_DISALLOW &&
 164                                 new_clocks->zstate_support != clk_mgr_base->clks.zstate_support) {
 165                         dcn314_smu_set_zstate_support(clk_mgr, new_clocks->zstate_support);
 166                         dm_helpers_enable_periodic_detection(clk_mgr_base->ctx, true);
 167                         clk_mgr_base->clks.zstate_support = new_clocks->zstate_support;
 168                 }
 169
 170                 if (clk_mgr_base->clks.dtbclk_en && !new_clocks->dtbclk_en) {
 171                         dcn314_smu_set_dtbclk(clk_mgr, false);
 172                         clk_mgr_base->clks.dtbclk_en = new_clocks->dtbclk_en;
 173                 }
 174                 /* check that we're not already in lower */
 175                 if (clk_mgr_base->clks.pwr_state != DCN_PWR_STATE_LOW_POWER) {
 176                         display_count = dcn314_get_active_display_cnt_wa(dc, context);
 177                         /* if we can go lower, go lower */
 178                         if (display_count == 0) {
 179                                 union display_idle_optimization_u idle_info = { 0 };
 180                                 idle_info.idle_info.df_request_disabled = 1;
 181                                 idle_info.idle_info.phy_ref_clk_off = 1;
 182                                 idle_info.idle_info.s0i2_rdy = 1;
 183                                 dcn314_smu_set_display_idle_optimization(clk_mgr, idle_info.data);
 184                                 /* update power state */
 185                                 clk_mgr_base->clks.pwr_state = DCN_PWR_STATE_LOW_POWER;
 186                         }
 187                 }
 188         } else {
 189                 if (new_clocks->zstate_support == DCN_ZSTATE_SUPPORT_DISALLOW &&
 190                                 new_clocks->zstate_support != clk_mgr_base->clks.zstate_support) {
 191                         dcn314_smu_set_zstate_support(clk_mgr, DCN_ZSTATE_SUPPORT_DISALLOW);
 192                         dm_helpers_enable_periodic_detection(clk_mgr_base->ctx, false);
 193                         clk_mgr_base->clks.zstate_support = new_clocks->zstate_support;
 194                 }
 195
 196                 if (!clk_mgr_base->clks.dtbclk_en && new_clocks->dtbclk_en) {
 197                         dcn314_smu_set_dtbclk(clk_mgr, true);
 198                         clk_mgr_base->clks.dtbclk_en = new_clocks->dtbclk_en;
 199                 }
 200
 201                 /* check that we're not already in D0 */
 202                 if (clk_mgr_base->clks.pwr_state != DCN_PWR_STATE_MISSION_MODE) {
 203                         union display_idle_optimization_u idle_info = { 0 };
 204
 205                         dcn314_smu_set_display_idle_optimization(clk_mgr, idle_info.data);
 206                         /* update power state */
 207                         clk_mgr_base->clks.pwr_state = DCN_PWR_STATE_MISSION_MODE;
 208                 }
 209         }
 210
 211         if (should_set_clock(safe_to_lower, new_clocks->dcfclk_khz, clk_mgr_base->clks.dcfclk_khz)) {
 212                 clk_mgr_base->clks.dcfclk_khz = new_clocks->dcfclk_khz;
 213                 dcn314_smu_set_hard_min_dcfclk(clk_mgr, clk_mgr_base->clks.dcfclk_khz);
 214         }
 215
 216         if (should_set_clock(safe_to_lower,
 217                         new_clocks->dcfclk_deep_sleep_khz, clk_mgr_base->clks.dcfclk_deep_sleep_khz)) {
 218                 clk_mgr_base->clks.dcfclk_deep_sleep_khz = new_clocks->dcfclk_deep_sleep_khz;
 219                 dcn314_smu_set_min_deep_sleep_dcfclk(clk_mgr, clk_mgr_base->clks.dcfclk_deep_sleep_khz);
 220         }
 221
 222         // workaround: Limit dppclk to 100Mhz to avoid lower eDP panel switch to plus 4K monitor underflow.
 223         if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
 224                 if (new_clocks->dppclk_khz < 100000)
 225                         new_clocks->dppclk_khz = 100000;
 226         }
 227
 228         if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) {
 229                 if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz)
 230                         dpp_clock_lowered = true;
 231                 clk_mgr_base->clks.dppclk_khz = new_clocks->dppclk_khz;
 232                 update_dppclk = true;
 233         }
 234
 235         if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) {
 236                 dcn314_disable_otg_wa(clk_mgr_base, true);
 237
 238                 clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz;
 239                 dcn314_smu_set_dispclk(clk_mgr, clk_mgr_base->clks.dispclk_khz);
 240                 dcn314_disable_otg_wa(clk_mgr_base, false);
 241
 242                 update_dispclk = true;
 243         }
 244
 245         if (dpp_clock_lowered) {
 246                 // increase per DPP DTO before lowering global dppclk
 247                 dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower);
 248                 dcn314_smu_set_dppclk(clk_mgr, clk_mgr_base->clks.dppclk_khz);
 249         } else {
 250                 // increase global DPPCLK before lowering per DPP DTO
 251                 if (update_dppclk || update_dispclk)
 252                         dcn314_smu_set_dppclk(clk_mgr, clk_mgr_base->clks.dppclk_khz);
 253                 // always update dtos unless clock is lowered and not safe to lower
 254                 if (new_clocks->dppclk_khz >= dc->current_state->bw_ctx.bw.dcn.clk.dppclk_khz)
 255                         dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower);
 256         }
 257
 258         // notify DMCUB of latest clocks
 259         memset(&cmd, 0, sizeof(cmd));
 260         cmd.notify_clocks.header.type = DMUB_CMD__CLK_MGR;
 261         cmd.notify_clocks.header.sub_type = DMUB_CMD__CLK_MGR_NOTIFY_CLOCKS;
 262         cmd.notify_clocks.clocks.dcfclk_khz = clk_mgr_base->clks.dcfclk_khz;
 263         cmd.notify_clocks.clocks.dcfclk_deep_sleep_khz =
 264                 clk_mgr_base->clks.dcfclk_deep_sleep_khz;
 265         cmd.notify_clocks.clocks.dispclk_khz = clk_mgr_base->clks.dispclk_khz;
 266         cmd.notify_clocks.clocks.dppclk_khz = clk_mgr_base->clks.dppclk_khz;
 267
 268         dc_dmub_srv_cmd_queue(dc->ctx->dmub_srv, &cmd);
 269         dc_dmub_srv_cmd_execute(dc->ctx->dmub_srv);
 270         dc_dmub_srv_wait_idle(dc->ctx->dmub_srv);
 271 }
 272
 273 static int get_vco_frequency_from_reg(struct clk_mgr_internal *clk_mgr)
 274 {
 275         /* get FbMult value */
 276         struct fixed31_32 pll_req;
 277         unsigned int fbmult_frac_val = 0;
 278         unsigned int fbmult_int_val = 0;
 279
 280         /*
 281          * Register value of fbmult is in 8.16 format, we are converting to 314.32
 282          * to leverage the fix point operations available in driver
 283          */
 284
 285         REG_GET(CLK1_CLK_PLL_REQ, FbMult_frac, &fbmult_frac_val); /* 16 bit fractional part*/
 286         REG_GET(CLK1_CLK_PLL_REQ, FbMult_int, &fbmult_int_val); /* 8 bit integer part */
 287
 288         pll_req = dc_fixpt_from_int(fbmult_int_val);
 289
 290         /*
 291          * since fractional part is only 16 bit in register definition but is 32 bit
 292          * in our fix point definiton, need to shift left by 16 to obtain correct value
 293          */
 294         pll_req.value |= fbmult_frac_val << 16;
 295
 296         /* multiply by REFCLK period */
 297         pll_req = dc_fixpt_mul_int(pll_req, clk_mgr->dfs_ref_freq_khz);
 298
 299         /* integer part is now VCO frequency in kHz */
 300         return dc_fixpt_floor(pll_req);
 301 }
 302
 303 static void dcn314_enable_pme_wa(struct clk_mgr *clk_mgr_base)
 304 {
 305         struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base);
 306
 307         dcn314_smu_enable_pme_wa(clk_mgr);
 308 }
 309
 310 void dcn314_init_clocks(struct clk_mgr *clk_mgr)
 311 {
 312         memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks));
 313         // Assumption is that boot state always supports pstate
 314         clk_mgr->clks.p_state_change_support = true;
 315         clk_mgr->clks.prev_p_state_change_support = true;
 316         clk_mgr->clks.pwr_state = DCN_PWR_STATE_UNKNOWN;
 317         clk_mgr->clks.zstate_support = DCN_ZSTATE_SUPPORT_UNKNOWN;
 318 }
 319
 320 bool dcn314_are_clock_states_equal(struct dc_clocks *a,
 321                 struct dc_clocks *b)
 322 {
 323         if (a->dispclk_khz != b->dispclk_khz)
 324                 return false;
 325         else if (a->dppclk_khz != b->dppclk_khz)
 326                 return false;
 327         else if (a->dcfclk_khz != b->dcfclk_khz)
 328                 return false;
 329         else if (a->dcfclk_deep_sleep_khz != b->dcfclk_deep_sleep_khz)
 330                 return false;
 331         else if (a->zstate_support != b->zstate_support)
 332                 return false;
 333         else if (a->dtbclk_en != b->dtbclk_en)
 334                 return false;
 335
 336         return true;
 337 }
 338
 339 static void dcn314_dump_clk_registers(struct clk_state_registers_and_bypass *regs_and_bypass,
 340                 struct clk_mgr *clk_mgr_base, struct clk_log_info *log_info)
 341 {
 342         return;
 343 }
 344
 345 static struct clk_bw_params dcn314_bw_params = {
 346         .vram_type = Ddr4MemType,
 347         .num_channels = 1,
 348         .clk_table = {
 349                 .num_entries = 4,
 350         },
 351
 352 };
 353
 354 static struct wm_table ddr5_wm_table = {
 355         .entries = {
 356                 {
 357                         .wm_inst = WM_A,
 358                         .wm_type = WM_TYPE_PSTATE_CHG,
 359                         .pstate_latency_us = 11.72,
 360                         .sr_exit_time_us = 9,
 361                         .sr_enter_plus_exit_time_us = 11,
 362                         .valid = true,
 363                 },
 364                 {
 365                         .wm_inst = WM_B,
 366                         .wm_type = WM_TYPE_PSTATE_CHG,
 367                         .pstate_latency_us = 11.72,
 368                         .sr_exit_time_us = 9,
 369                         .sr_enter_plus_exit_time_us = 11,
 370                         .valid = true,
 371                 },
 372                 {
 373                         .wm_inst = WM_C,
 374                         .wm_type = WM_TYPE_PSTATE_CHG,
 375                         .pstate_latency_us = 11.72,
 376                         .sr_exit_time_us = 9,
 377                         .sr_enter_plus_exit_time_us = 11,
 378                         .valid = true,
 379                 },
 380                 {
 381                         .wm_inst = WM_D,
 382                         .wm_type = WM_TYPE_PSTATE_CHG,
 383                         .pstate_latency_us = 11.72,
 384                         .sr_exit_time_us = 9,
 385                         .sr_enter_plus_exit_time_us = 11,
 386                         .valid = true,
 387                 },
 388         }
 389 };
 390
 391 static struct wm_table lpddr5_wm_table = {
 392         .entries = {
 393                 {
 394                         .wm_inst = WM_A,
 395                         .wm_type = WM_TYPE_PSTATE_CHG,
 396                         .pstate_latency_us = 11.65333,
 397                         .sr_exit_time_us = 11.5,
 398                         .sr_enter_plus_exit_time_us = 14.5,
 399                         .valid = true,
 400                 },
 401                 {
 402                         .wm_inst = WM_B,
 403                         .wm_type = WM_TYPE_PSTATE_CHG,
 404                         .pstate_latency_us = 11.65333,
 405                         .sr_exit_time_us = 11.5,
 406                         .sr_enter_plus_exit_time_us = 14.5,
 407                         .valid = true,
 408                 },
 409                 {
 410                         .wm_inst = WM_C,
 411                         .wm_type = WM_TYPE_PSTATE_CHG,
 412                         .pstate_latency_us = 11.65333,
 413                         .sr_exit_time_us = 11.5,
 414                         .sr_enter_plus_exit_time_us = 14.5,
 415                         .valid = true,
 416                 },
 417                 {
 418                         .wm_inst = WM_D,
 419                         .wm_type = WM_TYPE_PSTATE_CHG,
 420                         .pstate_latency_us = 11.65333,
 421                         .sr_exit_time_us = 11.5,
 422                         .sr_enter_plus_exit_time_us = 14.5,
 423                         .valid = true,
 424                 },
 425         }
 426 };
 427
 428 static DpmClocks_t dummy_clocks;
 429
 430 static struct dcn314_watermarks dummy_wms = { 0 };
 431
 432 static void dcn314_build_watermark_ranges(struct clk_bw_params *bw_params, struct dcn314_watermarks *table)
 433 {
 434         int i, num_valid_sets;
 435
 436         num_valid_sets = 0;
 437
 438         for (i = 0; i < WM_SET_COUNT; i++) {
 439                 /* skip empty entries, the smu array has no holes*/
 440                 if (!bw_params->wm_table.entries[i].valid)
 441                         continue;
 442
 443                 table->WatermarkRow[WM_DCFCLK][num_valid_sets].WmSetting = bw_params->wm_table.entries[i].wm_inst;
 444                 table->WatermarkRow[WM_DCFCLK][num_valid_sets].WmType = bw_params->wm_table.entries[i].wm_type;
 445                 /* We will not select WM based on fclk, so leave it as unconstrained */
 446                 table->WatermarkRow[WM_DCFCLK][num_valid_sets].MinClock = 0;
 447                 table->WatermarkRow[WM_DCFCLK][num_valid_sets].MaxClock = 0xFFFF;
 448
 449                 if (table->WatermarkRow[WM_DCFCLK][num_valid_sets].WmType == WM_TYPE_PSTATE_CHG) {
 450                         if (i == 0)
 451                                 table->WatermarkRow[WM_DCFCLK][num_valid_sets].MinMclk = 0;
 452                         else {
 453                                 /* add 1 to make it non-overlapping with next lvl */
 454                                 table->WatermarkRow[WM_DCFCLK][num_valid_sets].MinMclk =
 455                                                 bw_params->clk_table.entries[i - 1].dcfclk_mhz + 1;
 456                         }
 457                         table->WatermarkRow[WM_DCFCLK][num_valid_sets].MaxMclk =
 458                                         bw_params->clk_table.entries[i].dcfclk_mhz;
 459
 460                 } else {
 461                         /* unconstrained for memory retraining */
 462                         table->WatermarkRow[WM_DCFCLK][num_valid_sets].MinClock = 0;
 463                         table->WatermarkRow[WM_DCFCLK][num_valid_sets].MaxClock = 0xFFFF;
 464
 465                         /* Modify previous watermark range to cover up to max */
 466                         table->WatermarkRow[WM_DCFCLK][num_valid_sets - 1].MaxClock = 0xFFFF;
 467                 }
 468                 num_valid_sets++;
 469         }
 470
 471         ASSERT(num_valid_sets != 0); /* Must have at least one set of valid watermarks */
 472
 473         /* modify the min and max to make sure we cover the whole range*/
 474         table->WatermarkRow[WM_DCFCLK][0].MinMclk = 0;
 475         table->WatermarkRow[WM_DCFCLK][0].MinClock = 0;
 476         table->WatermarkRow[WM_DCFCLK][num_valid_sets - 1].MaxMclk = 0xFFFF;
 477         table->WatermarkRow[WM_DCFCLK][num_valid_sets - 1].MaxClock = 0xFFFF;
 478
 479         /* This is for writeback only, does not matter currently as no writeback support*/
 480         table->WatermarkRow[WM_SOCCLK][0].WmSetting = WM_A;
 481         table->WatermarkRow[WM_SOCCLK][0].MinClock = 0;
 482         table->WatermarkRow[WM_SOCCLK][0].MaxClock = 0xFFFF;
 483         table->WatermarkRow[WM_SOCCLK][0].MinMclk = 0;
 484         table->WatermarkRow[WM_SOCCLK][0].MaxMclk = 0xFFFF;
 485 }
 486
 487 static void dcn314_notify_wm_ranges(struct clk_mgr *clk_mgr_base)
 488 {
 489         struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base);
 490         struct clk_mgr_dcn314 *clk_mgr_dcn314 = TO_CLK_MGR_DCN314(clk_mgr);
 491         struct dcn314_watermarks *table = clk_mgr_dcn314->smu_wm_set.wm_set;
 492
 493         if (!clk_mgr->smu_ver)
 494                 return;
 495
 496         if (!table || clk_mgr_dcn314->smu_wm_set.mc_address.quad_part == 0)
 497                 return;
 498
 499         memset(table, 0, sizeof(*table));
 500
 501         dcn314_build_watermark_ranges(clk_mgr_base->bw_params, table);
 502
 503         dcn314_smu_set_dram_addr_high(clk_mgr,
 504                         clk_mgr_dcn314->smu_wm_set.mc_address.high_part);
 505         dcn314_smu_set_dram_addr_low(clk_mgr,
 506                         clk_mgr_dcn314->smu_wm_set.mc_address.low_part);
 507         dcn314_smu_transfer_wm_table_dram_2_smu(clk_mgr);
 508 }
 509
 510 static void dcn314_get_dpm_table_from_smu(struct clk_mgr_internal *clk_mgr,
 511                 struct dcn314_smu_dpm_clks *smu_dpm_clks)
 512 {
 513         DpmClocks_t *table = smu_dpm_clks->dpm_clks;
 514
 515         if (!clk_mgr->smu_ver)
 516                 return;
 517
 518         if (!table || smu_dpm_clks->mc_address.quad_part == 0)
 519                 return;
 520
 521         memset(table, 0, sizeof(*table));
 522
 523         dcn314_smu_set_dram_addr_high(clk_mgr,
 524                         smu_dpm_clks->mc_address.high_part);
 525         dcn314_smu_set_dram_addr_low(clk_mgr,
 526                         smu_dpm_clks->mc_address.low_part);
 527         dcn314_smu_transfer_dpm_table_smu_2_dram(clk_mgr);
 528 }
 529
 530 static uint32_t find_max_clk_value(const uint32_t clocks[], uint32_t num_clocks)
 531 {
 532         uint32_t max = 0;
 533         int i;
 534
 535         for (i = 0; i < num_clocks; ++i) {
 536                 if (clocks[i] > max)
 537                         max = clocks[i];
 538         }
 539
 540         return max;
 541 }
 542
 543 static unsigned int find_clk_for_voltage(
 544                 const DpmClocks_t *clock_table,
 545                 const uint32_t clocks[],
 546                 unsigned int voltage)
 547 {
 548         int i;
 549         int max_voltage = 0;
 550         int clock = 0;
 551
 552         for (i = 0; i < NUM_SOC_VOLTAGE_LEVELS; i++) {
 553                 if (clock_table->SocVoltage[i] == voltage) {
 554                         return clocks[i];
 555                 } else if (clock_table->SocVoltage[i] >= max_voltage &&
 556                                 clock_table->SocVoltage[i] < voltage) {
 557                         max_voltage = clock_table->SocVoltage[i];
 558                         clock = clocks[i];
 559                 }
 560         }
 561
 562         ASSERT(clock);
 563         return clock;
 564 }
 565
 566 static void dcn314_clk_mgr_helper_populate_bw_params(struct clk_mgr_internal *clk_mgr,
 567                                                     struct integrated_info *bios_info,
 568                                                     const DpmClocks_t *clock_table)
 569 {
 570         int i, j;
 571         struct clk_bw_params *bw_params = clk_mgr->base.bw_params;
 572         uint32_t max_dispclk = 0, max_dppclk = 0;
 573
 574         j = -1;
 575
 576         ASSERT(NUM_DF_PSTATE_LEVELS <= MAX_NUM_DPM_LVL);
 577
 578         /* Find lowest DPM, FCLK is filled in reverse order*/
 579
 580         for (i = NUM_DF_PSTATE_LEVELS - 1; i >= 0; i--) {
 581                 if (clock_table->DfPstateTable[i].FClk != 0) {
 582                         j = i;
 583                         break;
 584                 }
 585         }
 586
 587         if (j == -1) {
 588                 /* clock table is all 0s, just use our own hardcode */
 589                 ASSERT(0);
 590                 return;
 591         }
 592
 593         bw_params->clk_table.num_entries = j + 1;
 594
 595         /* dispclk and dppclk can be max at any voltage, same number of levels for both */
 596         if (clock_table->NumDispClkLevelsEnabled <= NUM_DISPCLK_DPM_LEVELS &&
 597             clock_table->NumDispClkLevelsEnabled <= NUM_DPPCLK_DPM_LEVELS) {
 598                 max_dispclk = find_max_clk_value(clock_table->DispClocks, clock_table->NumDispClkLevelsEnabled);
 599                 max_dppclk = find_max_clk_value(clock_table->DppClocks, clock_table->NumDispClkLevelsEnabled);
 600         } else {
 601                 ASSERT(0);
 602         }
 603
 604         for (i = 0; i < bw_params->clk_table.num_entries; i++, j--) {
 605                 bw_params->clk_table.entries[i].fclk_mhz = clock_table->DfPstateTable[j].FClk;
 606                 bw_params->clk_table.entries[i].memclk_mhz = clock_table->DfPstateTable[j].MemClk;
 607                 bw_params->clk_table.entries[i].voltage = clock_table->DfPstateTable[j].Voltage;
 608                 switch (clock_table->DfPstateTable[j].WckRatio) {
 609                 case WCK_RATIO_1_2:
 610                         bw_params->clk_table.entries[i].wck_ratio = 2;
 611                         break;
 612                 case WCK_RATIO_1_4:
 613                         bw_params->clk_table.entries[i].wck_ratio = 4;
 614                         break;
 615                 default:
 616                         bw_params->clk_table.entries[i].wck_ratio = 1;
 617                 }
 618                 bw_params->clk_table.entries[i].dcfclk_mhz = find_clk_for_voltage(clock_table, clock_table->DcfClocks, clock_table->DfPstateTable[j].Voltage);
 619                 bw_params->clk_table.entries[i].socclk_mhz = find_clk_for_voltage(clock_table, clock_table->SocClocks, clock_table->DfPstateTable[j].Voltage);
 620                 bw_params->clk_table.entries[i].dispclk_mhz = max_dispclk;
 621                 bw_params->clk_table.entries[i].dppclk_mhz = max_dppclk;
 622         }
 623
 624         bw_params->vram_type = bios_info->memory_type;
 625         bw_params->num_channels = bios_info->ma_channel_number;
 626
 627         for (i = 0; i < WM_SET_COUNT; i++) {
 628                 bw_params->wm_table.entries[i].wm_inst = i;
 629
 630                 if (i >= bw_params->clk_table.num_entries) {
 631                         bw_params->wm_table.entries[i].valid = false;
 632                         continue;
 633                 }
 634
 635                 bw_params->wm_table.entries[i].wm_type = WM_TYPE_PSTATE_CHG;
 636                 bw_params->wm_table.entries[i].valid = true;
 637         }
 638 }
 639
 640 static struct clk_mgr_funcs dcn314_funcs = {
 641         .get_dp_ref_clk_frequency = dce12_get_dp_ref_freq_khz,
 642         .get_dtb_ref_clk_frequency = dcn31_get_dtb_ref_freq_khz,
 643         .update_clocks = dcn314_update_clocks,
 644         .init_clocks = dcn314_init_clocks,
 645         .enable_pme_wa = dcn314_enable_pme_wa,
 646         .are_clock_states_equal = dcn314_are_clock_states_equal,
 647         .notify_wm_ranges = dcn314_notify_wm_ranges
 648 };
 649 extern struct clk_mgr_funcs dcn3_fpga_funcs;
 650
 651 void dcn314_clk_mgr_construct(
 652                 struct dc_context *ctx,
 653                 struct clk_mgr_dcn314 *clk_mgr,
 654                 struct pp_smu_funcs *pp_smu,
 655                 struct dccg *dccg)
 656 {
 657         struct dcn314_smu_dpm_clks smu_dpm_clks = { 0 };
 658
 659         clk_mgr->base.base.ctx = ctx;
 660         clk_mgr->base.base.funcs = &dcn314_funcs;
 661
 662         clk_mgr->base.pp_smu = pp_smu;
 663
 664         clk_mgr->base.dccg = dccg;
 665         clk_mgr->base.dfs_bypass_disp_clk = 0;
 666
 667         clk_mgr->base.dprefclk_ss_percentage = 0;
 668         clk_mgr->base.dprefclk_ss_divider = 1000;
 669         clk_mgr->base.ss_on_dprefclk = false;
 670         clk_mgr->base.dfs_ref_freq_khz = 48000;
 671
 672         clk_mgr->smu_wm_set.wm_set = (struct dcn314_watermarks *)dm_helpers_allocate_gpu_mem(
 673                                 clk_mgr->base.base.ctx,
 674                                 DC_MEM_ALLOC_TYPE_FRAME_BUFFER,
 675                                 sizeof(struct dcn314_watermarks),
 676                                 &clk_mgr->smu_wm_set.mc_address.quad_part);
 677
 678         if (!clk_mgr->smu_wm_set.wm_set) {
 679                 clk_mgr->smu_wm_set.wm_set = &dummy_wms;
 680                 clk_mgr->smu_wm_set.mc_address.quad_part = 0;
 681         }
 682         ASSERT(clk_mgr->smu_wm_set.wm_set);
 683
 684         smu_dpm_clks.dpm_clks = (DpmClocks_t *)dm_helpers_allocate_gpu_mem(
 685                                 clk_mgr->base.base.ctx,
 686                                 DC_MEM_ALLOC_TYPE_FRAME_BUFFER,
 687                                 sizeof(DpmClocks_t),
 688                                 &smu_dpm_clks.mc_address.quad_part);
 689
 690         if (smu_dpm_clks.dpm_clks == NULL) {
 691                 smu_dpm_clks.dpm_clks = &dummy_clocks;
 692                 smu_dpm_clks.mc_address.quad_part = 0;
 693         }
 694
 695         ASSERT(smu_dpm_clks.dpm_clks);
 696
 697         if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
 698                 clk_mgr->base.base.funcs = &dcn3_fpga_funcs;
 699         } else {
 700                 struct clk_log_info log_info = {0};
 701
 702                 clk_mgr->base.smu_ver = dcn314_smu_get_smu_version(&clk_mgr->base);
 703
 704                 if (clk_mgr->base.smu_ver)
 705                         clk_mgr->base.smu_present = true;
 706
 707                 /* TODO: Check we get what we expect during bringup */
 708                 clk_mgr->base.base.dentist_vco_freq_khz = get_vco_frequency_from_reg(&clk_mgr->base);
 709
 710                 if (ctx->dc_bios->integrated_info->memory_type == LpDdr5MemType)
 711                         dcn314_bw_params.wm_table = lpddr5_wm_table;
 712                 else
 713                         dcn314_bw_params.wm_table = ddr5_wm_table;
 714
 715                 /* Saved clocks configured at boot for debug purposes */
 716                 dcn314_dump_clk_registers(&clk_mgr->base.base.boot_snapshot,
 717                                           &clk_mgr->base.base, &log_info);
 718
 719         }
 720
 721         clk_mgr->base.base.dprefclk_khz = 600000;
 722         clk_mgr->base.base.clks.ref_dtbclk_khz = 600000;
 723         dce_clock_read_ss_info(&clk_mgr->base);
 724         /*if bios enabled SS, driver needs to adjust dtb clock, only enable with correct bios*/
 725         //clk_mgr->base.dccg->ref_dtbclk_khz = dce_adjust_dp_ref_freq_for_ss(clk_mgr_internal, clk_mgr->base.base.dprefclk_khz);
 726
 727         clk_mgr->base.base.bw_params = &dcn314_bw_params;
 728
 729         if (clk_mgr->base.base.ctx->dc->debug.pstate_enabled) {
 730                 dcn314_get_dpm_table_from_smu(&clk_mgr->base, &smu_dpm_clks);
 731
 732                 if (ctx->dc_bios && ctx->dc_bios->integrated_info) {
 733                         dcn314_clk_mgr_helper_populate_bw_params(
 734                                         &clk_mgr->base,
 735                                         ctx->dc_bios->integrated_info,
 736                                         smu_dpm_clks.dpm_clks);
 737                 }
 738         }
 739
 740         if (smu_dpm_clks.dpm_clks && smu_dpm_clks.mc_address.quad_part != 0)
 741                 dm_helpers_free_gpu_mem(clk_mgr->base.base.ctx, DC_MEM_ALLOC_TYPE_FRAME_BUFFER,
 742                                 smu_dpm_clks.dpm_clks);
 743 }
 744
 745 void dcn314_clk_mgr_destroy(struct clk_mgr_internal *clk_mgr_int)
 746 {
 747         struct clk_mgr_dcn314 *clk_mgr = TO_CLK_MGR_DCN314(clk_mgr_int);
 748
 749         if (clk_mgr->smu_wm_set.wm_set && clk_mgr->smu_wm_set.mc_address.quad_part != 0)
 750                 dm_helpers_free_gpu_mem(clk_mgr_int->base.ctx, DC_MEM_ALLOC_TYPE_FRAME_BUFFER,
 751                                 clk_mgr->smu_wm_set.wm_set);
 752 }