1 /* 2 * Copyright 2019 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 "dmub_psr.h" 27 #include "dc.h" 28 #include "dc_dmub_srv.h" 29 #include "dmub/dmub_srv.h" 30 #include "core_types.h" 31 32 #define DC_TRACE_LEVEL_MESSAGE(...) do {} while (0) /* do nothing */ 33 34 #define MAX_PIPES 6 35 36 /* 37 * Convert dmcub psr state to dmcu psr state. 38 */ 39 static enum dc_psr_state convert_psr_state(uint32_t raw_state) 40 { 41 enum dc_psr_state state = PSR_STATE0; 42 43 if (raw_state == 0) 44 state = PSR_STATE0; 45 else if (raw_state == 0x10) 46 state = PSR_STATE1; 47 else if (raw_state == 0x11) 48 state = PSR_STATE1a; 49 else if (raw_state == 0x20) 50 state = PSR_STATE2; 51 else if (raw_state == 0x21) 52 state = PSR_STATE2a; 53 else if (raw_state == 0x22) 54 state = PSR_STATE2b; 55 else if (raw_state == 0x30) 56 state = PSR_STATE3; 57 else if (raw_state == 0x31) 58 state = PSR_STATE3Init; 59 else if (raw_state == 0x40) 60 state = PSR_STATE4; 61 else if (raw_state == 0x41) 62 state = PSR_STATE4a; 63 else if (raw_state == 0x42) 64 state = PSR_STATE4b; 65 else if (raw_state == 0x43) 66 state = PSR_STATE4c; 67 else if (raw_state == 0x44) 68 state = PSR_STATE4d; 69 else if (raw_state == 0x50) 70 state = PSR_STATE5; 71 else if (raw_state == 0x51) 72 state = PSR_STATE5a; 73 else if (raw_state == 0x52) 74 state = PSR_STATE5b; 75 else if (raw_state == 0x53) 76 state = PSR_STATE5c; 77 else if (raw_state == 0x4A) 78 state = PSR_STATE4_FULL_FRAME; 79 else if (raw_state == 0x4B) 80 state = PSR_STATE4a_FULL_FRAME; 81 else if (raw_state == 0x4C) 82 state = PSR_STATE4b_FULL_FRAME; 83 else if (raw_state == 0x4D) 84 state = PSR_STATE4c_FULL_FRAME; 85 else if (raw_state == 0x4E) 86 state = PSR_STATE4_FULL_FRAME_POWERUP; 87 else if (raw_state == 0x60) 88 state = PSR_STATE_HWLOCK_MGR; 89 else if (raw_state == 0x61) 90 state = PSR_STATE_POLLVUPDATE; 91 else 92 state = PSR_STATE_INVALID; 93 94 return state; 95 } 96 97 /* 98 * Get PSR state from firmware. 99 */ 100 static void dmub_psr_get_state(struct dmub_psr *dmub, enum dc_psr_state *state, uint8_t panel_inst) 101 { 102 struct dmub_srv *srv = dmub->ctx->dmub_srv->dmub; 103 uint32_t raw_state = 0; 104 uint32_t retry_count = 0; 105 enum dmub_status status; 106 107 do { 108 // Send gpint command and wait for ack 109 status = dmub_srv_send_gpint_command(srv, DMUB_GPINT__GET_PSR_STATE, panel_inst, 30); 110 111 if (status == DMUB_STATUS_OK) { 112 // GPINT was executed, get response 113 dmub_srv_get_gpint_response(srv, &raw_state); 114 *state = convert_psr_state(raw_state); 115 } else 116 // Return invalid state when GPINT times out 117 *state = PSR_STATE_INVALID; 118 119 } while (++retry_count <= 1000 && *state == PSR_STATE_INVALID); 120 121 // Assert if max retry hit 122 if (retry_count >= 1000 && *state == PSR_STATE_INVALID) { 123 ASSERT(0); 124 DC_TRACE_LEVEL_MESSAGE(DAL_TRACE_LEVEL_ERROR, 125 WPP_BIT_FLAG_Firmware_PsrState, 126 "Unable to get PSR state from FW."); 127 } else 128 DC_TRACE_LEVEL_MESSAGE(DAL_TRACE_LEVEL_VERBOSE, 129 WPP_BIT_FLAG_Firmware_PsrState, 130 "Got PSR state from FW. PSR state: %d, Retry count: %d", 131 *state, retry_count); 132 } 133 134 /* 135 * Set PSR version. 136 */ 137 static bool dmub_psr_set_version(struct dmub_psr *dmub, struct dc_stream_state *stream, uint8_t panel_inst) 138 { 139 union dmub_rb_cmd cmd; 140 struct dc_context *dc = dmub->ctx; 141 142 if (stream->link->psr_settings.psr_version == DC_PSR_VERSION_UNSUPPORTED) 143 return false; 144 145 memset(&cmd, 0, sizeof(cmd)); 146 cmd.psr_set_version.header.type = DMUB_CMD__PSR; 147 cmd.psr_set_version.header.sub_type = DMUB_CMD__PSR_SET_VERSION; 148 switch (stream->link->psr_settings.psr_version) { 149 case DC_PSR_VERSION_1: 150 cmd.psr_set_version.psr_set_version_data.version = PSR_VERSION_1; 151 break; 152 case DC_PSR_VERSION_SU_1: 153 cmd.psr_set_version.psr_set_version_data.version = PSR_VERSION_SU_1; 154 break; 155 case DC_PSR_VERSION_UNSUPPORTED: 156 default: 157 cmd.psr_set_version.psr_set_version_data.version = PSR_VERSION_UNSUPPORTED; 158 break; 159 } 160 161 if (cmd.psr_set_version.psr_set_version_data.version == PSR_VERSION_UNSUPPORTED) 162 return false; 163 164 cmd.psr_set_version.psr_set_version_data.cmd_version = DMUB_CMD_PSR_CONTROL_VERSION_1; 165 cmd.psr_set_version.psr_set_version_data.panel_inst = panel_inst; 166 cmd.psr_set_version.header.payload_bytes = sizeof(struct dmub_cmd_psr_set_version_data); 167 168 dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd); 169 dc_dmub_srv_cmd_execute(dc->dmub_srv); 170 dc_dmub_srv_wait_idle(dc->dmub_srv); 171 172 return true; 173 } 174 175 /* 176 * Enable/Disable PSR. 177 */ 178 static void dmub_psr_enable(struct dmub_psr *dmub, bool enable, bool wait, uint8_t panel_inst) 179 { 180 union dmub_rb_cmd cmd; 181 struct dc_context *dc = dmub->ctx; 182 uint32_t retry_count; 183 enum dc_psr_state state = PSR_STATE0; 184 185 memset(&cmd, 0, sizeof(cmd)); 186 cmd.psr_enable.header.type = DMUB_CMD__PSR; 187 188 cmd.psr_enable.data.cmd_version = DMUB_CMD_PSR_CONTROL_VERSION_1; 189 cmd.psr_enable.data.panel_inst = panel_inst; 190 191 if (enable) 192 cmd.psr_enable.header.sub_type = DMUB_CMD__PSR_ENABLE; 193 else 194 cmd.psr_enable.header.sub_type = DMUB_CMD__PSR_DISABLE; 195 196 cmd.psr_enable.header.payload_bytes = 0; // Send header only 197 198 dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd); 199 dc_dmub_srv_cmd_execute(dc->dmub_srv); 200 dc_dmub_srv_wait_idle(dc->dmub_srv); 201 202 /* Below loops 1000 x 500us = 500 ms. 203 * Exit PSR may need to wait 1-2 frames to power up. Timeout after at 204 * least a few frames. Should never hit the max retry assert below. 205 */ 206 if (wait) { 207 for (retry_count = 0; retry_count <= 1000; retry_count++) { 208 dmub_psr_get_state(dmub, &state, panel_inst); 209 210 if (enable) { 211 if (state != PSR_STATE0) 212 break; 213 } else { 214 if (state == PSR_STATE0) 215 break; 216 } 217 218 udelay(500); 219 } 220 221 /* assert if max retry hit */ 222 if (retry_count >= 1000) 223 ASSERT(0); 224 } 225 } 226 227 /* 228 * Set PSR level. 229 */ 230 static void dmub_psr_set_level(struct dmub_psr *dmub, uint16_t psr_level, uint8_t panel_inst) 231 { 232 union dmub_rb_cmd cmd; 233 enum dc_psr_state state = PSR_STATE0; 234 struct dc_context *dc = dmub->ctx; 235 236 dmub_psr_get_state(dmub, &state, panel_inst); 237 238 if (state == PSR_STATE0) 239 return; 240 241 memset(&cmd, 0, sizeof(cmd)); 242 cmd.psr_set_level.header.type = DMUB_CMD__PSR; 243 cmd.psr_set_level.header.sub_type = DMUB_CMD__PSR_SET_LEVEL; 244 cmd.psr_set_level.header.payload_bytes = sizeof(struct dmub_cmd_psr_set_level_data); 245 cmd.psr_set_level.psr_set_level_data.psr_level = psr_level; 246 cmd.psr_set_level.psr_set_level_data.cmd_version = DMUB_CMD_PSR_CONTROL_VERSION_1; 247 cmd.psr_set_level.psr_set_level_data.panel_inst = panel_inst; 248 dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd); 249 dc_dmub_srv_cmd_execute(dc->dmub_srv); 250 dc_dmub_srv_wait_idle(dc->dmub_srv); 251 } 252 253 /** 254 * Set PSR vtotal requirement for FreeSync PSR. 255 */ 256 static void dmub_psr_set_sink_vtotal_in_psr_active(struct dmub_psr *dmub, 257 uint16_t psr_vtotal_idle, uint16_t psr_vtotal_su) 258 { 259 union dmub_rb_cmd cmd; 260 struct dc_context *dc = dmub->ctx; 261 262 memset(&cmd, 0, sizeof(cmd)); 263 cmd.psr_set_vtotal.header.type = DMUB_CMD__PSR; 264 cmd.psr_set_vtotal.header.sub_type = DMUB_CMD__SET_SINK_VTOTAL_IN_PSR_ACTIVE; 265 cmd.psr_set_vtotal.header.payload_bytes = sizeof(struct dmub_cmd_psr_set_vtotal_data); 266 cmd.psr_set_vtotal.psr_set_vtotal_data.psr_vtotal_idle = psr_vtotal_idle; 267 cmd.psr_set_vtotal.psr_set_vtotal_data.psr_vtotal_su = psr_vtotal_su; 268 269 dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd); 270 dc_dmub_srv_cmd_execute(dc->dmub_srv); 271 dc_dmub_srv_wait_idle(dc->dmub_srv); 272 } 273 274 /* 275 * Set PSR power optimization flags. 276 */ 277 static void dmub_psr_set_power_opt(struct dmub_psr *dmub, unsigned int power_opt, uint8_t panel_inst) 278 { 279 union dmub_rb_cmd cmd; 280 struct dc_context *dc = dmub->ctx; 281 282 memset(&cmd, 0, sizeof(cmd)); 283 cmd.psr_set_power_opt.header.type = DMUB_CMD__PSR; 284 cmd.psr_set_power_opt.header.sub_type = DMUB_CMD__SET_PSR_POWER_OPT; 285 cmd.psr_set_power_opt.header.payload_bytes = sizeof(struct dmub_cmd_psr_set_power_opt_data); 286 cmd.psr_set_power_opt.psr_set_power_opt_data.cmd_version = DMUB_CMD_PSR_CONTROL_VERSION_1; 287 cmd.psr_set_power_opt.psr_set_power_opt_data.power_opt = power_opt; 288 cmd.psr_set_power_opt.psr_set_power_opt_data.panel_inst = panel_inst; 289 290 dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd); 291 dc_dmub_srv_cmd_execute(dc->dmub_srv); 292 dc_dmub_srv_wait_idle(dc->dmub_srv); 293 } 294 295 /* 296 * Setup PSR by programming phy registers and sending psr hw context values to firmware. 297 */ 298 static bool dmub_psr_copy_settings(struct dmub_psr *dmub, 299 struct dc_link *link, 300 struct psr_context *psr_context, 301 uint8_t panel_inst) 302 { 303 union dmub_rb_cmd cmd; 304 struct dc_context *dc = dmub->ctx; 305 struct dmub_cmd_psr_copy_settings_data *copy_settings_data 306 = &cmd.psr_copy_settings.psr_copy_settings_data; 307 struct pipe_ctx *pipe_ctx = NULL; 308 struct resource_context *res_ctx = &link->ctx->dc->current_state->res_ctx; 309 int i = 0; 310 311 for (i = 0; i < MAX_PIPES; i++) { 312 if (res_ctx->pipe_ctx[i].stream && 313 res_ctx->pipe_ctx[i].stream->link == link && 314 res_ctx->pipe_ctx[i].stream->link->connector_signal == SIGNAL_TYPE_EDP) { 315 pipe_ctx = &res_ctx->pipe_ctx[i]; 316 //TODO: refactor for multi edp support 317 break; 318 } 319 } 320 321 if (!pipe_ctx) 322 return false; 323 324 // First, set the psr version 325 if (!dmub_psr_set_version(dmub, pipe_ctx->stream, panel_inst)) 326 return false; 327 328 // Program DP DPHY fast training registers 329 link->link_enc->funcs->psr_program_dp_dphy_fast_training(link->link_enc, 330 psr_context->psrExitLinkTrainingRequired); 331 332 // Program DP_SEC_CNTL1 register to set transmission GPS0 line num and priority to high 333 link->link_enc->funcs->psr_program_secondary_packet(link->link_enc, 334 psr_context->sdpTransmitLineNumDeadline); 335 336 memset(&cmd, 0, sizeof(cmd)); 337 cmd.psr_copy_settings.header.type = DMUB_CMD__PSR; 338 cmd.psr_copy_settings.header.sub_type = DMUB_CMD__PSR_COPY_SETTINGS; 339 cmd.psr_copy_settings.header.payload_bytes = sizeof(struct dmub_cmd_psr_copy_settings_data); 340 341 // Hw insts 342 copy_settings_data->dpphy_inst = psr_context->transmitterId; 343 copy_settings_data->aux_inst = psr_context->channel; 344 copy_settings_data->digfe_inst = psr_context->engineId; 345 copy_settings_data->digbe_inst = psr_context->transmitterId; 346 347 copy_settings_data->mpcc_inst = pipe_ctx->plane_res.mpcc_inst; 348 349 if (pipe_ctx->plane_res.dpp) 350 copy_settings_data->dpp_inst = pipe_ctx->plane_res.dpp->inst; 351 else 352 copy_settings_data->dpp_inst = 0; 353 if (pipe_ctx->stream_res.opp) 354 copy_settings_data->opp_inst = pipe_ctx->stream_res.opp->inst; 355 else 356 copy_settings_data->opp_inst = 0; 357 if (pipe_ctx->stream_res.tg) 358 copy_settings_data->otg_inst = pipe_ctx->stream_res.tg->inst; 359 else 360 copy_settings_data->otg_inst = 0; 361 362 // Misc 363 copy_settings_data->use_phy_fsm = link->ctx->dc->debug.psr_power_use_phy_fsm; 364 copy_settings_data->psr_level = psr_context->psr_level.u32all; 365 copy_settings_data->smu_optimizations_en = psr_context->allow_smu_optimizations; 366 copy_settings_data->multi_disp_optimizations_en = psr_context->allow_multi_disp_optimizations; 367 copy_settings_data->frame_delay = psr_context->frame_delay; 368 copy_settings_data->frame_cap_ind = psr_context->psrFrameCaptureIndicationReq; 369 copy_settings_data->init_sdp_deadline = psr_context->sdpTransmitLineNumDeadline; 370 copy_settings_data->debug.u32All = 0; 371 copy_settings_data->debug.bitfields.visual_confirm = dc->dc->debug.visual_confirm == VISUAL_CONFIRM_PSR; 372 copy_settings_data->debug.bitfields.use_hw_lock_mgr = 1; 373 copy_settings_data->debug.bitfields.force_full_frame_update = 0; 374 375 if (psr_context->su_granularity_required == 0) 376 copy_settings_data->su_y_granularity = 0; 377 else 378 copy_settings_data->su_y_granularity = psr_context->su_y_granularity; 379 380 copy_settings_data->line_capture_indication = 0; 381 copy_settings_data->line_time_in_us = psr_context->line_time_in_us; 382 copy_settings_data->rate_control_caps = psr_context->rate_control_caps; 383 copy_settings_data->fec_enable_status = (link->fec_state == dc_link_fec_enabled); 384 copy_settings_data->fec_enable_delay_in100us = link->dc->debug.fec_enable_delay_in100us; 385 copy_settings_data->cmd_version = DMUB_CMD_PSR_CONTROL_VERSION_1; 386 copy_settings_data->panel_inst = panel_inst; 387 copy_settings_data->dsc_enable_status = (pipe_ctx->stream->timing.flags.DSC == 1); 388 389 /** 390 * WA for PSRSU+DSC on specific TCON, if DSC is enabled, force PSRSU as ffu mode(full frame update) 391 * Note that PSRSU+DSC is still under development. 392 */ 393 if (copy_settings_data->dsc_enable_status && 394 link->dpcd_caps.sink_dev_id == DP_DEVICE_ID_38EC11 && 395 !memcmp(link->dpcd_caps.sink_dev_id_str, DP_SINK_DEVICE_STR_ID_1, 396 sizeof(DP_SINK_DEVICE_STR_ID_1))) 397 link->psr_settings.force_ffu_mode = 1; 398 else 399 link->psr_settings.force_ffu_mode = 0; 400 copy_settings_data->force_ffu_mode = link->psr_settings.force_ffu_mode; 401 402 if (link->fec_state == dc_link_fec_enabled && 403 link->dpcd_caps.sink_dev_id == DP_DEVICE_ID_38EC11 && 404 (!memcmp(link->dpcd_caps.sink_dev_id_str, DP_SINK_DEVICE_STR_ID_1, 405 sizeof(DP_SINK_DEVICE_STR_ID_1)) || 406 !memcmp(link->dpcd_caps.sink_dev_id_str, DP_SINK_DEVICE_STR_ID_2, 407 sizeof(DP_SINK_DEVICE_STR_ID_2)))) 408 copy_settings_data->debug.bitfields.force_wakeup_by_tps3 = 1; 409 else 410 copy_settings_data->debug.bitfields.force_wakeup_by_tps3 = 0; 411 412 dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd); 413 dc_dmub_srv_cmd_execute(dc->dmub_srv); 414 dc_dmub_srv_wait_idle(dc->dmub_srv); 415 416 return true; 417 } 418 419 /* 420 * Send command to PSR to force static ENTER and ignore all state changes until exit 421 */ 422 static void dmub_psr_force_static(struct dmub_psr *dmub, uint8_t panel_inst) 423 { 424 union dmub_rb_cmd cmd; 425 struct dc_context *dc = dmub->ctx; 426 427 memset(&cmd, 0, sizeof(cmd)); 428 429 cmd.psr_force_static.psr_force_static_data.panel_inst = panel_inst; 430 cmd.psr_force_static.psr_force_static_data.cmd_version = DMUB_CMD_PSR_CONTROL_VERSION_1; 431 cmd.psr_force_static.header.type = DMUB_CMD__PSR; 432 cmd.psr_force_static.header.sub_type = DMUB_CMD__PSR_FORCE_STATIC; 433 cmd.psr_enable.header.payload_bytes = 0; 434 435 dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd); 436 dc_dmub_srv_cmd_execute(dc->dmub_srv); 437 dc_dmub_srv_wait_idle(dc->dmub_srv); 438 } 439 440 /* 441 * Get PSR residency from firmware. 442 */ 443 static void dmub_psr_get_residency(struct dmub_psr *dmub, uint32_t *residency, uint8_t panel_inst) 444 { 445 struct dmub_srv *srv = dmub->ctx->dmub_srv->dmub; 446 uint16_t param = (uint16_t)(panel_inst << 8); 447 448 /* Send gpint command and wait for ack */ 449 dmub_srv_send_gpint_command(srv, DMUB_GPINT__PSR_RESIDENCY, param, 30); 450 451 dmub_srv_get_gpint_response(srv, residency); 452 } 453 454 static const struct dmub_psr_funcs psr_funcs = { 455 .psr_copy_settings = dmub_psr_copy_settings, 456 .psr_enable = dmub_psr_enable, 457 .psr_get_state = dmub_psr_get_state, 458 .psr_set_level = dmub_psr_set_level, 459 .psr_force_static = dmub_psr_force_static, 460 .psr_get_residency = dmub_psr_get_residency, 461 .psr_set_sink_vtotal_in_psr_active = dmub_psr_set_sink_vtotal_in_psr_active, 462 .psr_set_power_opt = dmub_psr_set_power_opt, 463 }; 464 465 /* 466 * Construct PSR object. 467 */ 468 static void dmub_psr_construct(struct dmub_psr *psr, struct dc_context *ctx) 469 { 470 psr->ctx = ctx; 471 psr->funcs = &psr_funcs; 472 } 473 474 /* 475 * Allocate and initialize PSR object. 476 */ 477 struct dmub_psr *dmub_psr_create(struct dc_context *ctx) 478 { 479 struct dmub_psr *psr = kzalloc(sizeof(struct dmub_psr), GFP_KERNEL); 480 481 if (psr == NULL) { 482 BREAK_TO_DEBUGGER(); 483 return NULL; 484 } 485 486 dmub_psr_construct(psr, ctx); 487 488 return psr; 489 } 490 491 /* 492 * Deallocate PSR object. 493 */ 494 void dmub_psr_destroy(struct dmub_psr **dmub) 495 { 496 kfree(*dmub); 497 *dmub = NULL; 498 } 499