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 #ifndef _DMUB_SRV_H_ 27 #define _DMUB_SRV_H_ 28 29 /** 30 * DOC: DMUB interface and operation 31 * 32 * DMUB is the interface to the display DMCUB microcontroller on DCN hardware. 33 * It delegates hardware initialization and command submission to the 34 * microcontroller. DMUB is the shortname for DMCUB. 35 * 36 * This interface is not thread-safe. Ensure that all access to the interface 37 * is properly synchronized by the caller. 38 * 39 * Initialization and usage of the DMUB service should be done in the 40 * steps given below: 41 * 42 * 1. dmub_srv_create() 43 * 2. dmub_srv_has_hw_support() 44 * 3. dmub_srv_calc_region_info() 45 * 4. dmub_srv_hw_init() 46 * 47 * The call to dmub_srv_create() is required to use the server. 48 * 49 * The calls to dmub_srv_has_hw_support() and dmub_srv_calc_region_info() 50 * are helpers to query cache window size and allocate framebuffer(s) 51 * for the cache windows. 52 * 53 * The call to dmub_srv_hw_init() programs the DMCUB registers to prepare 54 * for command submission. Commands can be queued via dmub_srv_cmd_queue() 55 * and executed via dmub_srv_cmd_execute(). 56 * 57 * If the queue is full the dmub_srv_wait_for_idle() call can be used to 58 * wait until the queue has been cleared. 59 * 60 * Destroying the DMUB service can be done by calling dmub_srv_destroy(). 61 * This does not clear DMUB hardware state, only software state. 62 * 63 * The interface is intended to be standalone and should not depend on any 64 * other component within DAL. 65 */ 66 67 #include "inc/dmub_cmd.h" 68 69 #if defined(__cplusplus) 70 extern "C" { 71 #endif 72 73 /* Forward declarations */ 74 struct dmub_srv; 75 struct dmub_srv_common_regs; 76 struct dmub_srv_dcn31_regs; 77 78 struct dmcub_trace_buf_entry; 79 80 /* enum dmub_status - return code for dmcub functions */ 81 enum dmub_status { 82 DMUB_STATUS_OK = 0, 83 DMUB_STATUS_NO_CTX, 84 DMUB_STATUS_QUEUE_FULL, 85 DMUB_STATUS_TIMEOUT, 86 DMUB_STATUS_INVALID, 87 DMUB_STATUS_HW_FAILURE, 88 }; 89 90 /* enum dmub_asic - dmub asic identifier */ 91 enum dmub_asic { 92 DMUB_ASIC_NONE = 0, 93 DMUB_ASIC_DCN20, 94 DMUB_ASIC_DCN21, 95 DMUB_ASIC_DCN30, 96 DMUB_ASIC_DCN301, 97 DMUB_ASIC_DCN302, 98 DMUB_ASIC_DCN303, 99 DMUB_ASIC_DCN31, 100 DMUB_ASIC_DCN31B, 101 DMUB_ASIC_DCN314, 102 DMUB_ASIC_DCN315, 103 DMUB_ASIC_DCN316, 104 DMUB_ASIC_DCN32, 105 DMUB_ASIC_DCN321, 106 DMUB_ASIC_MAX, 107 }; 108 109 /* enum dmub_window_id - dmub window identifier */ 110 enum dmub_window_id { 111 DMUB_WINDOW_0_INST_CONST = 0, 112 DMUB_WINDOW_1_STACK, 113 DMUB_WINDOW_2_BSS_DATA, 114 DMUB_WINDOW_3_VBIOS, 115 DMUB_WINDOW_4_MAILBOX, 116 DMUB_WINDOW_5_TRACEBUFF, 117 DMUB_WINDOW_6_FW_STATE, 118 DMUB_WINDOW_7_SCRATCH_MEM, 119 DMUB_WINDOW_TOTAL, 120 }; 121 122 /* enum dmub_notification_type - dmub outbox notification identifier */ 123 enum dmub_notification_type { 124 DMUB_NOTIFICATION_NO_DATA = 0, 125 DMUB_NOTIFICATION_AUX_REPLY, 126 DMUB_NOTIFICATION_HPD, 127 DMUB_NOTIFICATION_HPD_IRQ, 128 DMUB_NOTIFICATION_SET_CONFIG_REPLY, 129 DMUB_NOTIFICATION_DPIA_NOTIFICATION, 130 DMUB_NOTIFICATION_MAX 131 }; 132 133 /** 134 * DPIA NOTIFICATION Response Type 135 */ 136 enum dpia_notify_bw_alloc_status { 137 138 DPIA_BW_REQ_FAILED = 0, 139 DPIA_BW_REQ_SUCCESS, 140 DPIA_EST_BW_CHANGED, 141 DPIA_BW_ALLOC_CAPS_CHANGED 142 }; 143 144 /** 145 * struct dmub_region - dmub hw memory region 146 * @base: base address for region, must be 256 byte aligned 147 * @top: top address for region 148 */ 149 struct dmub_region { 150 uint32_t base; 151 uint32_t top; 152 }; 153 154 /** 155 * struct dmub_window - dmub hw cache window 156 * @off: offset to the fb memory in gpu address space 157 * @r: region in uc address space for cache window 158 */ 159 struct dmub_window { 160 union dmub_addr offset; 161 struct dmub_region region; 162 }; 163 164 /** 165 * struct dmub_fb - defines a dmub framebuffer memory region 166 * @cpu_addr: cpu virtual address for the region, NULL if invalid 167 * @gpu_addr: gpu virtual address for the region, NULL if invalid 168 * @size: size of the region in bytes, zero if invalid 169 */ 170 struct dmub_fb { 171 void *cpu_addr; 172 uint64_t gpu_addr; 173 uint32_t size; 174 }; 175 176 /** 177 * struct dmub_srv_region_params - params used for calculating dmub regions 178 * @inst_const_size: size of the fw inst const section 179 * @bss_data_size: size of the fw bss data section 180 * @vbios_size: size of the vbios data 181 * @fw_bss_data: raw firmware bss data section 182 */ 183 struct dmub_srv_region_params { 184 uint32_t inst_const_size; 185 uint32_t bss_data_size; 186 uint32_t vbios_size; 187 const uint8_t *fw_inst_const; 188 const uint8_t *fw_bss_data; 189 }; 190 191 /** 192 * struct dmub_srv_region_info - output region info from the dmub service 193 * @fb_size: required minimum fb size for all regions, aligned to 4096 bytes 194 * @num_regions: number of regions used by the dmub service 195 * @regions: region info 196 * 197 * The regions are aligned such that they can be all placed within the 198 * same framebuffer but they can also be placed into different framebuffers. 199 * 200 * The size of each region can be calculated by the caller: 201 * size = reg.top - reg.base 202 * 203 * Care must be taken when performing custom allocations to ensure that each 204 * region base address is 256 byte aligned. 205 */ 206 struct dmub_srv_region_info { 207 uint32_t fb_size; 208 uint8_t num_regions; 209 struct dmub_region regions[DMUB_WINDOW_TOTAL]; 210 }; 211 212 /** 213 * struct dmub_srv_fb_params - parameters used for driver fb setup 214 * @region_info: region info calculated by dmub service 215 * @cpu_addr: base cpu address for the framebuffer 216 * @gpu_addr: base gpu virtual address for the framebuffer 217 */ 218 struct dmub_srv_fb_params { 219 const struct dmub_srv_region_info *region_info; 220 void *cpu_addr; 221 uint64_t gpu_addr; 222 }; 223 224 /** 225 * struct dmub_srv_fb_info - output fb info from the dmub service 226 * @num_fbs: number of required dmub framebuffers 227 * @fbs: fb data for each region 228 * 229 * Output from the dmub service helper that can be used by the 230 * driver to prepare dmub_fb that can be passed into the dmub 231 * hw init service. 232 * 233 * Assumes that all regions are within the same framebuffer 234 * and have been setup according to the region_info generated 235 * by the dmub service. 236 */ 237 struct dmub_srv_fb_info { 238 uint8_t num_fb; 239 struct dmub_fb fb[DMUB_WINDOW_TOTAL]; 240 }; 241 242 /* 243 * struct dmub_srv_hw_params - params for dmub hardware initialization 244 * @fb: framebuffer info for each region 245 * @fb_base: base of the framebuffer aperture 246 * @fb_offset: offset of the framebuffer aperture 247 * @psp_version: psp version to pass for DMCU init 248 * @load_inst_const: true if DMUB should load inst const fw 249 */ 250 struct dmub_srv_hw_params { 251 struct dmub_fb *fb[DMUB_WINDOW_TOTAL]; 252 uint64_t fb_base; 253 uint64_t fb_offset; 254 uint32_t psp_version; 255 bool load_inst_const; 256 bool skip_panel_power_sequence; 257 bool disable_z10; 258 bool power_optimization; 259 bool dpia_supported; 260 bool disable_dpia; 261 bool usb4_cm_version; 262 bool fw_in_system_memory; 263 bool dpia_hpd_int_enable_supported; 264 bool disable_clock_gate; 265 bool disallow_dispclk_dppclk_ds; 266 }; 267 268 /** 269 * struct dmub_diagnostic_data - Diagnostic data retrieved from DMCUB for 270 * debugging purposes, including logging, crash analysis, etc. 271 */ 272 struct dmub_diagnostic_data { 273 uint32_t dmcub_version; 274 uint32_t scratch[17]; 275 uint32_t pc; 276 uint32_t undefined_address_fault_addr; 277 uint32_t inst_fetch_fault_addr; 278 uint32_t data_write_fault_addr; 279 uint32_t inbox1_rptr; 280 uint32_t inbox1_wptr; 281 uint32_t inbox1_size; 282 uint32_t inbox0_rptr; 283 uint32_t inbox0_wptr; 284 uint32_t inbox0_size; 285 uint32_t gpint_datain0; 286 uint8_t is_dmcub_enabled : 1; 287 uint8_t is_dmcub_soft_reset : 1; 288 uint8_t is_dmcub_secure_reset : 1; 289 uint8_t is_traceport_en : 1; 290 uint8_t is_cw0_enabled : 1; 291 uint8_t is_cw6_enabled : 1; 292 }; 293 294 /** 295 * struct dmub_srv_base_funcs - Driver specific base callbacks 296 */ 297 struct dmub_srv_base_funcs { 298 /** 299 * @reg_read: 300 * 301 * Hook for reading a register. 302 * 303 * Return: The 32-bit register value from the given address. 304 */ 305 uint32_t (*reg_read)(void *ctx, uint32_t address); 306 307 /** 308 * @reg_write: 309 * 310 * Hook for writing a value to the register specified by address. 311 */ 312 void (*reg_write)(void *ctx, uint32_t address, uint32_t value); 313 }; 314 315 /** 316 * struct dmub_srv_hw_funcs - hardware sequencer funcs for dmub 317 */ 318 struct dmub_srv_hw_funcs { 319 /* private: internal use only */ 320 321 void (*init)(struct dmub_srv *dmub); 322 323 void (*reset)(struct dmub_srv *dmub); 324 325 void (*reset_release)(struct dmub_srv *dmub); 326 327 void (*backdoor_load)(struct dmub_srv *dmub, 328 const struct dmub_window *cw0, 329 const struct dmub_window *cw1); 330 331 void (*backdoor_load_zfb_mode)(struct dmub_srv *dmub, 332 const struct dmub_window *cw0, 333 const struct dmub_window *cw1); 334 void (*setup_windows)(struct dmub_srv *dmub, 335 const struct dmub_window *cw2, 336 const struct dmub_window *cw3, 337 const struct dmub_window *cw4, 338 const struct dmub_window *cw5, 339 const struct dmub_window *cw6); 340 341 void (*setup_mailbox)(struct dmub_srv *dmub, 342 const struct dmub_region *inbox1); 343 344 uint32_t (*get_inbox1_wptr)(struct dmub_srv *dmub); 345 346 uint32_t (*get_inbox1_rptr)(struct dmub_srv *dmub); 347 348 void (*set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset); 349 350 void (*setup_out_mailbox)(struct dmub_srv *dmub, 351 const struct dmub_region *outbox1); 352 353 uint32_t (*get_outbox1_wptr)(struct dmub_srv *dmub); 354 355 void (*set_outbox1_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset); 356 357 void (*setup_outbox0)(struct dmub_srv *dmub, 358 const struct dmub_region *outbox0); 359 360 uint32_t (*get_outbox0_wptr)(struct dmub_srv *dmub); 361 362 void (*set_outbox0_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset); 363 364 uint32_t (*emul_get_inbox1_rptr)(struct dmub_srv *dmub); 365 366 void (*emul_set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset); 367 368 bool (*is_supported)(struct dmub_srv *dmub); 369 370 bool (*is_psrsu_supported)(struct dmub_srv *dmub); 371 372 bool (*is_hw_init)(struct dmub_srv *dmub); 373 374 void (*enable_dmub_boot_options)(struct dmub_srv *dmub, 375 const struct dmub_srv_hw_params *params); 376 377 void (*skip_dmub_panel_power_sequence)(struct dmub_srv *dmub, bool skip); 378 379 union dmub_fw_boot_status (*get_fw_status)(struct dmub_srv *dmub); 380 381 union dmub_fw_boot_options (*get_fw_boot_option)(struct dmub_srv *dmub); 382 383 void (*set_gpint)(struct dmub_srv *dmub, 384 union dmub_gpint_data_register reg); 385 386 bool (*is_gpint_acked)(struct dmub_srv *dmub, 387 union dmub_gpint_data_register reg); 388 389 uint32_t (*get_gpint_response)(struct dmub_srv *dmub); 390 391 uint32_t (*get_gpint_dataout)(struct dmub_srv *dmub); 392 393 void (*configure_dmub_in_system_memory)(struct dmub_srv *dmub); 394 void (*clear_inbox0_ack_register)(struct dmub_srv *dmub); 395 uint32_t (*read_inbox0_ack_register)(struct dmub_srv *dmub); 396 void (*send_inbox0_cmd)(struct dmub_srv *dmub, union dmub_inbox0_data_register data); 397 uint32_t (*get_current_time)(struct dmub_srv *dmub); 398 399 void (*get_diagnostic_data)(struct dmub_srv *dmub, struct dmub_diagnostic_data *dmub_oca); 400 401 bool (*should_detect)(struct dmub_srv *dmub); 402 }; 403 404 /** 405 * struct dmub_srv_create_params - params for dmub service creation 406 * @base_funcs: driver supplied base routines 407 * @hw_funcs: optional overrides for hw funcs 408 * @user_ctx: context data for callback funcs 409 * @asic: driver supplied asic 410 * @fw_version: the current firmware version, if any 411 * @is_virtual: false for hw support only 412 */ 413 struct dmub_srv_create_params { 414 struct dmub_srv_base_funcs funcs; 415 struct dmub_srv_hw_funcs *hw_funcs; 416 void *user_ctx; 417 enum dmub_asic asic; 418 uint32_t fw_version; 419 bool is_virtual; 420 }; 421 422 /** 423 * struct dmub_srv - software state for dmcub 424 * @asic: dmub asic identifier 425 * @user_ctx: user provided context for the dmub_srv 426 * @fw_version: the current firmware version, if any 427 * @is_virtual: false if hardware support only 428 * @fw_state: dmub firmware state pointer 429 */ 430 struct dmub_srv { 431 enum dmub_asic asic; 432 void *user_ctx; 433 uint32_t fw_version; 434 bool is_virtual; 435 struct dmub_fb scratch_mem_fb; 436 volatile const struct dmub_fw_state *fw_state; 437 438 /* private: internal use only */ 439 const struct dmub_srv_common_regs *regs; 440 const struct dmub_srv_dcn31_regs *regs_dcn31; 441 const struct dmub_srv_dcn32_regs *regs_dcn32; 442 443 struct dmub_srv_base_funcs funcs; 444 struct dmub_srv_hw_funcs hw_funcs; 445 struct dmub_rb inbox1_rb; 446 uint32_t inbox1_last_wptr; 447 /** 448 * outbox1_rb is accessed without locks (dal & dc) 449 * and to be used only in dmub_srv_stat_get_notification() 450 */ 451 struct dmub_rb outbox1_rb; 452 453 struct dmub_rb outbox0_rb; 454 455 bool sw_init; 456 bool hw_init; 457 458 uint64_t fb_base; 459 uint64_t fb_offset; 460 uint32_t psp_version; 461 462 /* Feature capabilities reported by fw */ 463 struct dmub_feature_caps feature_caps; 464 struct dmub_visual_confirm_color visual_confirm_color; 465 }; 466 467 /** 468 * struct dmub_notification - dmub notification data 469 * @type: dmub notification type 470 * @link_index: link index to identify aux connection 471 * @result: USB4 status returned from dmub 472 * @pending_notification: Indicates there are other pending notifications 473 * @aux_reply: aux reply 474 * @hpd_status: hpd status 475 * @bw_alloc_reply: BW Allocation reply from CM/DPIA 476 */ 477 struct dmub_notification { 478 enum dmub_notification_type type; 479 uint8_t link_index; 480 uint8_t result; 481 bool pending_notification; 482 union { 483 struct aux_reply_data aux_reply; 484 enum dp_hpd_status hpd_status; 485 enum set_config_status sc_status; 486 /** 487 * DPIA notification command. 488 */ 489 struct dmub_rb_cmd_dpia_notification dpia_notification; 490 }; 491 }; 492 493 /** 494 * DMUB firmware version helper macro - useful for checking if the version 495 * of a firmware to know if feature or functionality is supported or present. 496 */ 497 #define DMUB_FW_VERSION(major, minor, revision) \ 498 ((((major) & 0xFF) << 24) | (((minor) & 0xFF) << 16) | (((revision) & 0xFF) << 8)) 499 500 /** 501 * dmub_srv_create() - creates the DMUB service. 502 * @dmub: the dmub service 503 * @params: creation parameters for the service 504 * 505 * Return: 506 * DMUB_STATUS_OK - success 507 * DMUB_STATUS_INVALID - unspecified error 508 */ 509 enum dmub_status dmub_srv_create(struct dmub_srv *dmub, 510 const struct dmub_srv_create_params *params); 511 512 /** 513 * dmub_srv_destroy() - destroys the DMUB service. 514 * @dmub: the dmub service 515 */ 516 void dmub_srv_destroy(struct dmub_srv *dmub); 517 518 /** 519 * dmub_srv_calc_region_info() - retreives region info from the dmub service 520 * @dmub: the dmub service 521 * @params: parameters used to calculate region locations 522 * @info_out: the output region info from dmub 523 * 524 * Calculates the base and top address for all relevant dmub regions 525 * using the parameters given (if any). 526 * 527 * Return: 528 * DMUB_STATUS_OK - success 529 * DMUB_STATUS_INVALID - unspecified error 530 */ 531 enum dmub_status 532 dmub_srv_calc_region_info(struct dmub_srv *dmub, 533 const struct dmub_srv_region_params *params, 534 struct dmub_srv_region_info *out); 535 536 /** 537 * dmub_srv_calc_region_info() - retreives fb info from the dmub service 538 * @dmub: the dmub service 539 * @params: parameters used to calculate fb locations 540 * @info_out: the output fb info from dmub 541 * 542 * Calculates the base and top address for all relevant dmub regions 543 * using the parameters given (if any). 544 * 545 * Return: 546 * DMUB_STATUS_OK - success 547 * DMUB_STATUS_INVALID - unspecified error 548 */ 549 enum dmub_status dmub_srv_calc_fb_info(struct dmub_srv *dmub, 550 const struct dmub_srv_fb_params *params, 551 struct dmub_srv_fb_info *out); 552 553 /** 554 * dmub_srv_has_hw_support() - returns hw support state for dmcub 555 * @dmub: the dmub service 556 * @is_supported: hw support state 557 * 558 * Queries the hardware for DMCUB support and returns the result. 559 * 560 * Can be called before dmub_srv_hw_init(). 561 * 562 * Return: 563 * DMUB_STATUS_OK - success 564 * DMUB_STATUS_INVALID - unspecified error 565 */ 566 enum dmub_status dmub_srv_has_hw_support(struct dmub_srv *dmub, 567 bool *is_supported); 568 569 /** 570 * dmub_srv_is_hw_init() - returns hardware init state 571 * 572 * Return: 573 * DMUB_STATUS_OK - success 574 * DMUB_STATUS_INVALID - unspecified error 575 */ 576 enum dmub_status dmub_srv_is_hw_init(struct dmub_srv *dmub, bool *is_hw_init); 577 578 /** 579 * dmub_srv_hw_init() - initializes the underlying DMUB hardware 580 * @dmub: the dmub service 581 * @params: params for hardware initialization 582 * 583 * Resets the DMUB hardware and performs backdoor loading of the 584 * required cache regions based on the input framebuffer regions. 585 * 586 * Return: 587 * DMUB_STATUS_OK - success 588 * DMUB_STATUS_NO_CTX - dmcub context not initialized 589 * DMUB_STATUS_INVALID - unspecified error 590 */ 591 enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, 592 const struct dmub_srv_hw_params *params); 593 594 /** 595 * dmub_srv_hw_reset() - puts the DMUB hardware in reset state if initialized 596 * @dmub: the dmub service 597 * 598 * Before destroying the DMUB service or releasing the backing framebuffer 599 * memory we'll need to put the DMCUB into reset first. 600 * 601 * A subsequent call to dmub_srv_hw_init() will re-enable the DMCUB. 602 * 603 * Return: 604 * DMUB_STATUS_OK - success 605 * DMUB_STATUS_INVALID - unspecified error 606 */ 607 enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub); 608 609 /** 610 * dmub_srv_sync_inbox1() - sync sw state with hw state 611 * @dmub: the dmub service 612 * 613 * Sync sw state with hw state when resume from S0i3 614 * 615 * Return: 616 * DMUB_STATUS_OK - success 617 * DMUB_STATUS_INVALID - unspecified error 618 */ 619 enum dmub_status dmub_srv_sync_inbox1(struct dmub_srv *dmub); 620 621 /** 622 * dmub_srv_cmd_queue() - queues a command to the DMUB 623 * @dmub: the dmub service 624 * @cmd: the command to queue 625 * 626 * Queues a command to the DMUB service but does not begin execution 627 * immediately. 628 * 629 * Return: 630 * DMUB_STATUS_OK - success 631 * DMUB_STATUS_QUEUE_FULL - no remaining room in queue 632 * DMUB_STATUS_INVALID - unspecified error 633 */ 634 enum dmub_status dmub_srv_cmd_queue(struct dmub_srv *dmub, 635 const union dmub_rb_cmd *cmd); 636 637 /** 638 * dmub_srv_cmd_execute() - Executes a queued sequence to the dmub 639 * @dmub: the dmub service 640 * 641 * Begins execution of queued commands on the dmub. 642 * 643 * Return: 644 * DMUB_STATUS_OK - success 645 * DMUB_STATUS_INVALID - unspecified error 646 */ 647 enum dmub_status dmub_srv_cmd_execute(struct dmub_srv *dmub); 648 649 /** 650 * dmub_srv_wait_for_auto_load() - Waits for firmware auto load to complete 651 * @dmub: the dmub service 652 * @timeout_us: the maximum number of microseconds to wait 653 * 654 * Waits until firmware has been autoloaded by the DMCUB. The maximum 655 * wait time is given in microseconds to prevent spinning forever. 656 * 657 * On ASICs without firmware autoload support this function will return 658 * immediately. 659 * 660 * Return: 661 * DMUB_STATUS_OK - success 662 * DMUB_STATUS_TIMEOUT - wait for phy init timed out 663 * DMUB_STATUS_INVALID - unspecified error 664 */ 665 enum dmub_status dmub_srv_wait_for_auto_load(struct dmub_srv *dmub, 666 uint32_t timeout_us); 667 668 /** 669 * dmub_srv_wait_for_phy_init() - Waits for DMUB PHY init to complete 670 * @dmub: the dmub service 671 * @timeout_us: the maximum number of microseconds to wait 672 * 673 * Waits until the PHY has been initialized by the DMUB. The maximum 674 * wait time is given in microseconds to prevent spinning forever. 675 * 676 * On ASICs without PHY init support this function will return 677 * immediately. 678 * 679 * Return: 680 * DMUB_STATUS_OK - success 681 * DMUB_STATUS_TIMEOUT - wait for phy init timed out 682 * DMUB_STATUS_INVALID - unspecified error 683 */ 684 enum dmub_status dmub_srv_wait_for_phy_init(struct dmub_srv *dmub, 685 uint32_t timeout_us); 686 687 /** 688 * dmub_srv_wait_for_idle() - Waits for the DMUB to be idle 689 * @dmub: the dmub service 690 * @timeout_us: the maximum number of microseconds to wait 691 * 692 * Waits until the DMUB buffer is empty and all commands have 693 * finished processing. The maximum wait time is given in 694 * microseconds to prevent spinning forever. 695 * 696 * Return: 697 * DMUB_STATUS_OK - success 698 * DMUB_STATUS_TIMEOUT - wait for buffer to flush timed out 699 * DMUB_STATUS_INVALID - unspecified error 700 */ 701 enum dmub_status dmub_srv_wait_for_idle(struct dmub_srv *dmub, 702 uint32_t timeout_us); 703 704 /** 705 * dmub_srv_send_gpint_command() - Sends a GPINT based command. 706 * @dmub: the dmub service 707 * @command_code: the command code to send 708 * @param: the command parameter to send 709 * @timeout_us: the maximum number of microseconds to wait 710 * 711 * Sends a command via the general purpose interrupt (GPINT). 712 * Waits for the number of microseconds specified by timeout_us 713 * for the command ACK before returning. 714 * 715 * Can be called after software initialization. 716 * 717 * Return: 718 * DMUB_STATUS_OK - success 719 * DMUB_STATUS_TIMEOUT - wait for ACK timed out 720 * DMUB_STATUS_INVALID - unspecified error 721 */ 722 enum dmub_status 723 dmub_srv_send_gpint_command(struct dmub_srv *dmub, 724 enum dmub_gpint_command command_code, 725 uint16_t param, uint32_t timeout_us); 726 727 /** 728 * dmub_srv_get_gpint_response() - Queries the GPINT response. 729 * @dmub: the dmub service 730 * @response: the response for the last GPINT 731 * 732 * Returns the response code for the last GPINT interrupt. 733 * 734 * Can be called after software initialization. 735 * 736 * Return: 737 * DMUB_STATUS_OK - success 738 * DMUB_STATUS_INVALID - unspecified error 739 */ 740 enum dmub_status dmub_srv_get_gpint_response(struct dmub_srv *dmub, 741 uint32_t *response); 742 743 /** 744 * dmub_srv_get_gpint_dataout() - Queries the GPINT DATAOUT. 745 * @dmub: the dmub service 746 * @dataout: the data for the GPINT DATAOUT 747 * 748 * Returns the response code for the last GPINT DATAOUT interrupt. 749 * 750 * Can be called after software initialization. 751 * 752 * Return: 753 * DMUB_STATUS_OK - success 754 * DMUB_STATUS_INVALID - unspecified error 755 */ 756 enum dmub_status dmub_srv_get_gpint_dataout(struct dmub_srv *dmub, 757 uint32_t *dataout); 758 759 /** 760 * dmub_flush_buffer_mem() - Read back entire frame buffer region. 761 * This ensures that the write from x86 has been flushed and will not 762 * hang the DMCUB. 763 * @fb: frame buffer to flush 764 * 765 * Can be called after software initialization. 766 */ 767 void dmub_flush_buffer_mem(const struct dmub_fb *fb); 768 769 /** 770 * dmub_srv_get_fw_boot_status() - Returns the DMUB boot status bits. 771 * 772 * @dmub: the dmub service 773 * @status: out pointer for firmware status 774 * 775 * Return: 776 * DMUB_STATUS_OK - success 777 * DMUB_STATUS_INVALID - unspecified error, unsupported 778 */ 779 enum dmub_status dmub_srv_get_fw_boot_status(struct dmub_srv *dmub, 780 union dmub_fw_boot_status *status); 781 782 enum dmub_status dmub_srv_get_fw_boot_option(struct dmub_srv *dmub, 783 union dmub_fw_boot_options *option); 784 785 enum dmub_status dmub_srv_cmd_with_reply_data(struct dmub_srv *dmub, 786 union dmub_rb_cmd *cmd); 787 788 enum dmub_status dmub_srv_set_skip_panel_power_sequence(struct dmub_srv *dmub, 789 bool skip); 790 791 bool dmub_srv_get_outbox0_msg(struct dmub_srv *dmub, struct dmcub_trace_buf_entry *entry); 792 793 bool dmub_srv_get_diagnostic_data(struct dmub_srv *dmub, struct dmub_diagnostic_data *diag_data); 794 795 bool dmub_srv_should_detect(struct dmub_srv *dmub); 796 797 /** 798 * dmub_srv_send_inbox0_cmd() - Send command to DMUB using INBOX0 799 * @dmub: the dmub service 800 * @data: the data to be sent in the INBOX0 command 801 * 802 * Send command by writing directly to INBOX0 WPTR 803 * 804 * Return: 805 * DMUB_STATUS_OK - success 806 * DMUB_STATUS_INVALID - hw_init false or hw function does not exist 807 */ 808 enum dmub_status dmub_srv_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data); 809 810 /** 811 * dmub_srv_wait_for_inbox0_ack() - wait for DMUB to ACK INBOX0 command 812 * @dmub: the dmub service 813 * @timeout_us: the maximum number of microseconds to wait 814 * 815 * Wait for DMUB to ACK the INBOX0 message 816 * 817 * Return: 818 * DMUB_STATUS_OK - success 819 * DMUB_STATUS_INVALID - hw_init false or hw function does not exist 820 * DMUB_STATUS_TIMEOUT - wait for ack timed out 821 */ 822 enum dmub_status dmub_srv_wait_for_inbox0_ack(struct dmub_srv *dmub, uint32_t timeout_us); 823 824 /** 825 * dmub_srv_wait_for_inbox0_ack() - clear ACK register for INBOX0 826 * @dmub: the dmub service 827 * 828 * Clear ACK register for INBOX0 829 * 830 * Return: 831 * DMUB_STATUS_OK - success 832 * DMUB_STATUS_INVALID - hw_init false or hw function does not exist 833 */ 834 enum dmub_status dmub_srv_clear_inbox0_ack(struct dmub_srv *dmub); 835 836 #if defined(__cplusplus) 837 } 838 #endif 839 840 #endif /* _DMUB_SRV_H_ */ 841
