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 }; 88 89 /* enum dmub_asic - dmub asic identifier */ 90 enum dmub_asic { 91 DMUB_ASIC_NONE = 0, 92 DMUB_ASIC_DCN20, 93 DMUB_ASIC_DCN21, 94 DMUB_ASIC_DCN30, 95 DMUB_ASIC_DCN301, 96 DMUB_ASIC_DCN302, 97 DMUB_ASIC_DCN303, 98 DMUB_ASIC_DCN31, 99 DMUB_ASIC_MAX, 100 }; 101 102 /* enum dmub_window_id - dmub window identifier */ 103 enum dmub_window_id { 104 DMUB_WINDOW_0_INST_CONST = 0, 105 DMUB_WINDOW_1_STACK, 106 DMUB_WINDOW_2_BSS_DATA, 107 DMUB_WINDOW_3_VBIOS, 108 DMUB_WINDOW_4_MAILBOX, 109 DMUB_WINDOW_5_TRACEBUFF, 110 DMUB_WINDOW_6_FW_STATE, 111 DMUB_WINDOW_7_SCRATCH_MEM, 112 DMUB_WINDOW_TOTAL, 113 }; 114 115 /* enum dmub_notification_type - dmub outbox notification identifier */ 116 enum dmub_notification_type { 117 DMUB_NOTIFICATION_NO_DATA = 0, 118 DMUB_NOTIFICATION_AUX_REPLY, 119 DMUB_NOTIFICATION_HPD, 120 DMUB_NOTIFICATION_HPD_IRQ, 121 DMUB_NOTIFICATION_MAX 122 }; 123 124 /** 125 * struct dmub_region - dmub hw memory region 126 * @base: base address for region, must be 256 byte aligned 127 * @top: top address for region 128 */ 129 struct dmub_region { 130 uint32_t base; 131 uint32_t top; 132 }; 133 134 /** 135 * struct dmub_window - dmub hw cache window 136 * @off: offset to the fb memory in gpu address space 137 * @r: region in uc address space for cache window 138 */ 139 struct dmub_window { 140 union dmub_addr offset; 141 struct dmub_region region; 142 }; 143 144 /** 145 * struct dmub_fb - defines a dmub framebuffer memory region 146 * @cpu_addr: cpu virtual address for the region, NULL if invalid 147 * @gpu_addr: gpu virtual address for the region, NULL if invalid 148 * @size: size of the region in bytes, zero if invalid 149 */ 150 struct dmub_fb { 151 void *cpu_addr; 152 uint64_t gpu_addr; 153 uint32_t size; 154 }; 155 156 /** 157 * struct dmub_srv_region_params - params used for calculating dmub regions 158 * @inst_const_size: size of the fw inst const section 159 * @bss_data_size: size of the fw bss data section 160 * @vbios_size: size of the vbios data 161 * @fw_bss_data: raw firmware bss data section 162 */ 163 struct dmub_srv_region_params { 164 uint32_t inst_const_size; 165 uint32_t bss_data_size; 166 uint32_t vbios_size; 167 const uint8_t *fw_inst_const; 168 const uint8_t *fw_bss_data; 169 }; 170 171 /** 172 * struct dmub_srv_region_info - output region info from the dmub service 173 * @fb_size: required minimum fb size for all regions, aligned to 4096 bytes 174 * @num_regions: number of regions used by the dmub service 175 * @regions: region info 176 * 177 * The regions are aligned such that they can be all placed within the 178 * same framebuffer but they can also be placed into different framebuffers. 179 * 180 * The size of each region can be calculated by the caller: 181 * size = reg.top - reg.base 182 * 183 * Care must be taken when performing custom allocations to ensure that each 184 * region base address is 256 byte aligned. 185 */ 186 struct dmub_srv_region_info { 187 uint32_t fb_size; 188 uint8_t num_regions; 189 struct dmub_region regions[DMUB_WINDOW_TOTAL]; 190 }; 191 192 /** 193 * struct dmub_srv_fb_params - parameters used for driver fb setup 194 * @region_info: region info calculated by dmub service 195 * @cpu_addr: base cpu address for the framebuffer 196 * @gpu_addr: base gpu virtual address for the framebuffer 197 */ 198 struct dmub_srv_fb_params { 199 const struct dmub_srv_region_info *region_info; 200 void *cpu_addr; 201 uint64_t gpu_addr; 202 }; 203 204 /** 205 * struct dmub_srv_fb_info - output fb info from the dmub service 206 * @num_fbs: number of required dmub framebuffers 207 * @fbs: fb data for each region 208 * 209 * Output from the dmub service helper that can be used by the 210 * driver to prepare dmub_fb that can be passed into the dmub 211 * hw init service. 212 * 213 * Assumes that all regions are within the same framebuffer 214 * and have been setup according to the region_info generated 215 * by the dmub service. 216 */ 217 struct dmub_srv_fb_info { 218 uint8_t num_fb; 219 struct dmub_fb fb[DMUB_WINDOW_TOTAL]; 220 }; 221 222 /* 223 * struct dmub_srv_hw_params - params for dmub hardware initialization 224 * @fb: framebuffer info for each region 225 * @fb_base: base of the framebuffer aperture 226 * @fb_offset: offset of the framebuffer aperture 227 * @psp_version: psp version to pass for DMCU init 228 * @load_inst_const: true if DMUB should load inst const fw 229 */ 230 struct dmub_srv_hw_params { 231 struct dmub_fb *fb[DMUB_WINDOW_TOTAL]; 232 uint64_t fb_base; 233 uint64_t fb_offset; 234 uint32_t psp_version; 235 bool load_inst_const; 236 bool skip_panel_power_sequence; 237 bool disable_z10; 238 }; 239 240 /** 241 * struct dmub_diagnostic_data - Diagnostic data retrieved from DMCUB for 242 * debugging purposes, including logging, crash analysis, etc. 243 */ 244 struct dmub_diagnostic_data { 245 uint32_t dmcub_version; 246 uint32_t scratch[16]; 247 uint32_t pc; 248 uint32_t undefined_address_fault_addr; 249 uint32_t inst_fetch_fault_addr; 250 uint32_t data_write_fault_addr; 251 uint32_t inbox1_rptr; 252 uint32_t inbox1_wptr; 253 uint32_t inbox1_size; 254 uint32_t inbox0_rptr; 255 uint32_t inbox0_wptr; 256 uint32_t inbox0_size; 257 uint8_t is_dmcub_enabled : 1; 258 uint8_t is_dmcub_soft_reset : 1; 259 uint8_t is_dmcub_secure_reset : 1; 260 uint8_t is_traceport_en : 1; 261 uint8_t is_cw0_enabled : 1; 262 uint8_t is_cw6_enabled : 1; 263 }; 264 265 /** 266 * struct dmub_srv_base_funcs - Driver specific base callbacks 267 */ 268 struct dmub_srv_base_funcs { 269 /** 270 * @reg_read: 271 * 272 * Hook for reading a register. 273 * 274 * Return: The 32-bit register value from the given address. 275 */ 276 uint32_t (*reg_read)(void *ctx, uint32_t address); 277 278 /** 279 * @reg_write: 280 * 281 * Hook for writing a value to the register specified by address. 282 */ 283 void (*reg_write)(void *ctx, uint32_t address, uint32_t value); 284 }; 285 286 /** 287 * struct dmub_srv_hw_funcs - hardware sequencer funcs for dmub 288 */ 289 struct dmub_srv_hw_funcs { 290 /* private: internal use only */ 291 292 void (*init)(struct dmub_srv *dmub); 293 294 void (*reset)(struct dmub_srv *dmub); 295 296 void (*reset_release)(struct dmub_srv *dmub); 297 298 void (*backdoor_load)(struct dmub_srv *dmub, 299 const struct dmub_window *cw0, 300 const struct dmub_window *cw1); 301 302 void (*setup_windows)(struct dmub_srv *dmub, 303 const struct dmub_window *cw2, 304 const struct dmub_window *cw3, 305 const struct dmub_window *cw4, 306 const struct dmub_window *cw5, 307 const struct dmub_window *cw6); 308 309 void (*setup_mailbox)(struct dmub_srv *dmub, 310 const struct dmub_region *inbox1); 311 312 uint32_t (*get_inbox1_rptr)(struct dmub_srv *dmub); 313 314 void (*set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset); 315 316 void (*setup_out_mailbox)(struct dmub_srv *dmub, 317 const struct dmub_region *outbox1); 318 319 uint32_t (*get_outbox1_wptr)(struct dmub_srv *dmub); 320 321 void (*set_outbox1_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset); 322 323 void (*setup_outbox0)(struct dmub_srv *dmub, 324 const struct dmub_region *outbox0); 325 326 uint32_t (*get_outbox0_wptr)(struct dmub_srv *dmub); 327 328 void (*set_outbox0_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset); 329 330 uint32_t (*emul_get_inbox1_rptr)(struct dmub_srv *dmub); 331 332 void (*emul_set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset); 333 334 bool (*is_supported)(struct dmub_srv *dmub); 335 336 bool (*is_hw_init)(struct dmub_srv *dmub); 337 338 bool (*is_phy_init)(struct dmub_srv *dmub); 339 void (*enable_dmub_boot_options)(struct dmub_srv *dmub, 340 const struct dmub_srv_hw_params *params); 341 342 void (*skip_dmub_panel_power_sequence)(struct dmub_srv *dmub, bool skip); 343 344 union dmub_fw_boot_status (*get_fw_status)(struct dmub_srv *dmub); 345 346 347 void (*set_gpint)(struct dmub_srv *dmub, 348 union dmub_gpint_data_register reg); 349 350 bool (*is_gpint_acked)(struct dmub_srv *dmub, 351 union dmub_gpint_data_register reg); 352 353 uint32_t (*get_gpint_response)(struct dmub_srv *dmub); 354 355 uint32_t (*get_gpint_dataout)(struct dmub_srv *dmub); 356 357 void (*send_inbox0_cmd)(struct dmub_srv *dmub, union dmub_inbox0_data_register data); 358 uint32_t (*get_current_time)(struct dmub_srv *dmub); 359 360 void (*get_diagnostic_data)(struct dmub_srv *dmub, struct dmub_diagnostic_data *dmub_oca); 361 }; 362 363 /** 364 * struct dmub_srv_create_params - params for dmub service creation 365 * @base_funcs: driver supplied base routines 366 * @hw_funcs: optional overrides for hw funcs 367 * @user_ctx: context data for callback funcs 368 * @asic: driver supplied asic 369 * @fw_version: the current firmware version, if any 370 * @is_virtual: false for hw support only 371 */ 372 struct dmub_srv_create_params { 373 struct dmub_srv_base_funcs funcs; 374 struct dmub_srv_hw_funcs *hw_funcs; 375 void *user_ctx; 376 enum dmub_asic asic; 377 uint32_t fw_version; 378 bool is_virtual; 379 }; 380 381 /** 382 * struct dmub_srv - software state for dmcub 383 * @asic: dmub asic identifier 384 * @user_ctx: user provided context for the dmub_srv 385 * @fw_version: the current firmware version, if any 386 * @is_virtual: false if hardware support only 387 * @fw_state: dmub firmware state pointer 388 */ 389 struct dmub_srv { 390 enum dmub_asic asic; 391 void *user_ctx; 392 uint32_t fw_version; 393 bool is_virtual; 394 struct dmub_fb scratch_mem_fb; 395 volatile const struct dmub_fw_state *fw_state; 396 397 /* private: internal use only */ 398 const struct dmub_srv_common_regs *regs; 399 const struct dmub_srv_dcn31_regs *regs_dcn31; 400 401 struct dmub_srv_base_funcs funcs; 402 struct dmub_srv_hw_funcs hw_funcs; 403 struct dmub_rb inbox1_rb; 404 /** 405 * outbox1_rb is accessed without locks (dal & dc) 406 * and to be used only in dmub_srv_stat_get_notification() 407 */ 408 struct dmub_rb outbox1_rb; 409 410 struct dmub_rb outbox0_rb; 411 412 bool sw_init; 413 bool hw_init; 414 415 uint64_t fb_base; 416 uint64_t fb_offset; 417 uint32_t psp_version; 418 419 /* Feature capabilities reported by fw */ 420 struct dmub_feature_caps feature_caps; 421 }; 422 423 /** 424 * struct dmub_notification - dmub notification data 425 * @type: dmub notification type 426 * @link_index: link index to identify aux connection 427 * @result: USB4 status returned from dmub 428 * @pending_notification: Indicates there are other pending notifications 429 * @aux_reply: aux reply 430 * @hpd_status: hpd status 431 */ 432 struct dmub_notification { 433 enum dmub_notification_type type; 434 uint8_t link_index; 435 uint8_t result; 436 bool pending_notification; 437 union { 438 struct aux_reply_data aux_reply; 439 enum dp_hpd_status hpd_status; 440 }; 441 }; 442 443 /** 444 * DMUB firmware version helper macro - useful for checking if the version 445 * of a firmware to know if feature or functionality is supported or present. 446 */ 447 #define DMUB_FW_VERSION(major, minor, revision) \ 448 ((((major) & 0xFF) << 24) | (((minor) & 0xFF) << 16) | ((revision) & 0xFFFF)) 449 450 /** 451 * dmub_srv_create() - creates the DMUB service. 452 * @dmub: the dmub service 453 * @params: creation parameters for the service 454 * 455 * Return: 456 * DMUB_STATUS_OK - success 457 * DMUB_STATUS_INVALID - unspecified error 458 */ 459 enum dmub_status dmub_srv_create(struct dmub_srv *dmub, 460 const struct dmub_srv_create_params *params); 461 462 /** 463 * dmub_srv_destroy() - destroys the DMUB service. 464 * @dmub: the dmub service 465 */ 466 void dmub_srv_destroy(struct dmub_srv *dmub); 467 468 /** 469 * dmub_srv_calc_region_info() - retreives region info from the dmub service 470 * @dmub: the dmub service 471 * @params: parameters used to calculate region locations 472 * @info_out: the output region info from dmub 473 * 474 * Calculates the base and top address for all relevant dmub regions 475 * using the parameters given (if any). 476 * 477 * Return: 478 * DMUB_STATUS_OK - success 479 * DMUB_STATUS_INVALID - unspecified error 480 */ 481 enum dmub_status 482 dmub_srv_calc_region_info(struct dmub_srv *dmub, 483 const struct dmub_srv_region_params *params, 484 struct dmub_srv_region_info *out); 485 486 /** 487 * dmub_srv_calc_region_info() - retreives fb info from the dmub service 488 * @dmub: the dmub service 489 * @params: parameters used to calculate fb locations 490 * @info_out: the output fb info from dmub 491 * 492 * Calculates the base and top address for all relevant dmub regions 493 * using the parameters given (if any). 494 * 495 * Return: 496 * DMUB_STATUS_OK - success 497 * DMUB_STATUS_INVALID - unspecified error 498 */ 499 enum dmub_status dmub_srv_calc_fb_info(struct dmub_srv *dmub, 500 const struct dmub_srv_fb_params *params, 501 struct dmub_srv_fb_info *out); 502 503 /** 504 * dmub_srv_has_hw_support() - returns hw support state for dmcub 505 * @dmub: the dmub service 506 * @is_supported: hw support state 507 * 508 * Queries the hardware for DMCUB support and returns the result. 509 * 510 * Can be called before dmub_srv_hw_init(). 511 * 512 * Return: 513 * DMUB_STATUS_OK - success 514 * DMUB_STATUS_INVALID - unspecified error 515 */ 516 enum dmub_status dmub_srv_has_hw_support(struct dmub_srv *dmub, 517 bool *is_supported); 518 519 /** 520 * dmub_srv_is_hw_init() - returns hardware init state 521 * 522 * Return: 523 * DMUB_STATUS_OK - success 524 * DMUB_STATUS_INVALID - unspecified error 525 */ 526 enum dmub_status dmub_srv_is_hw_init(struct dmub_srv *dmub, bool *is_hw_init); 527 528 /** 529 * dmub_srv_hw_init() - initializes the underlying DMUB hardware 530 * @dmub: the dmub service 531 * @params: params for hardware initialization 532 * 533 * Resets the DMUB hardware and performs backdoor loading of the 534 * required cache regions based on the input framebuffer regions. 535 * 536 * Return: 537 * DMUB_STATUS_OK - success 538 * DMUB_STATUS_NO_CTX - dmcub context not initialized 539 * DMUB_STATUS_INVALID - unspecified error 540 */ 541 enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, 542 const struct dmub_srv_hw_params *params); 543 544 /** 545 * dmub_srv_hw_reset() - puts the DMUB hardware in reset state if initialized 546 * @dmub: the dmub service 547 * 548 * Before destroying the DMUB service or releasing the backing framebuffer 549 * memory we'll need to put the DMCUB into reset first. 550 * 551 * A subsequent call to dmub_srv_hw_init() will re-enable the DMCUB. 552 * 553 * Return: 554 * DMUB_STATUS_OK - success 555 * DMUB_STATUS_INVALID - unspecified error 556 */ 557 enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub); 558 559 /** 560 * dmub_srv_cmd_queue() - queues a command to the DMUB 561 * @dmub: the dmub service 562 * @cmd: the command to queue 563 * 564 * Queues a command to the DMUB service but does not begin execution 565 * immediately. 566 * 567 * Return: 568 * DMUB_STATUS_OK - success 569 * DMUB_STATUS_QUEUE_FULL - no remaining room in queue 570 * DMUB_STATUS_INVALID - unspecified error 571 */ 572 enum dmub_status dmub_srv_cmd_queue(struct dmub_srv *dmub, 573 const union dmub_rb_cmd *cmd); 574 575 /** 576 * dmub_srv_cmd_execute() - Executes a queued sequence to the dmub 577 * @dmub: the dmub service 578 * 579 * Begins execution of queued commands on the dmub. 580 * 581 * Return: 582 * DMUB_STATUS_OK - success 583 * DMUB_STATUS_INVALID - unspecified error 584 */ 585 enum dmub_status dmub_srv_cmd_execute(struct dmub_srv *dmub); 586 587 /** 588 * dmub_srv_wait_for_auto_load() - Waits for firmware auto load to complete 589 * @dmub: the dmub service 590 * @timeout_us: the maximum number of microseconds to wait 591 * 592 * Waits until firmware has been autoloaded by the DMCUB. The maximum 593 * wait time is given in microseconds to prevent spinning forever. 594 * 595 * On ASICs without firmware autoload support this function will return 596 * immediately. 597 * 598 * Return: 599 * DMUB_STATUS_OK - success 600 * DMUB_STATUS_TIMEOUT - wait for phy init timed out 601 * DMUB_STATUS_INVALID - unspecified error 602 */ 603 enum dmub_status dmub_srv_wait_for_auto_load(struct dmub_srv *dmub, 604 uint32_t timeout_us); 605 606 /** 607 * dmub_srv_wait_for_phy_init() - Waits for DMUB PHY init to complete 608 * @dmub: the dmub service 609 * @timeout_us: the maximum number of microseconds to wait 610 * 611 * Waits until the PHY has been initialized by the DMUB. The maximum 612 * wait time is given in microseconds to prevent spinning forever. 613 * 614 * On ASICs without PHY init support this function will return 615 * immediately. 616 * 617 * Return: 618 * DMUB_STATUS_OK - success 619 * DMUB_STATUS_TIMEOUT - wait for phy init timed out 620 * DMUB_STATUS_INVALID - unspecified error 621 */ 622 enum dmub_status dmub_srv_wait_for_phy_init(struct dmub_srv *dmub, 623 uint32_t timeout_us); 624 625 /** 626 * dmub_srv_wait_for_idle() - Waits for the DMUB to be idle 627 * @dmub: the dmub service 628 * @timeout_us: the maximum number of microseconds to wait 629 * 630 * Waits until the DMUB buffer is empty and all commands have 631 * finished processing. The maximum wait time is given in 632 * microseconds to prevent spinning forever. 633 * 634 * Return: 635 * DMUB_STATUS_OK - success 636 * DMUB_STATUS_TIMEOUT - wait for buffer to flush timed out 637 * DMUB_STATUS_INVALID - unspecified error 638 */ 639 enum dmub_status dmub_srv_wait_for_idle(struct dmub_srv *dmub, 640 uint32_t timeout_us); 641 642 /** 643 * dmub_srv_send_gpint_command() - Sends a GPINT based command. 644 * @dmub: the dmub service 645 * @command_code: the command code to send 646 * @param: the command parameter to send 647 * @timeout_us: the maximum number of microseconds to wait 648 * 649 * Sends a command via the general purpose interrupt (GPINT). 650 * Waits for the number of microseconds specified by timeout_us 651 * for the command ACK before returning. 652 * 653 * Can be called after software initialization. 654 * 655 * Return: 656 * DMUB_STATUS_OK - success 657 * DMUB_STATUS_TIMEOUT - wait for ACK timed out 658 * DMUB_STATUS_INVALID - unspecified error 659 */ 660 enum dmub_status 661 dmub_srv_send_gpint_command(struct dmub_srv *dmub, 662 enum dmub_gpint_command command_code, 663 uint16_t param, uint32_t timeout_us); 664 665 /** 666 * dmub_srv_get_gpint_response() - Queries the GPINT response. 667 * @dmub: the dmub service 668 * @response: the response for the last GPINT 669 * 670 * Returns the response code for the last GPINT interrupt. 671 * 672 * Can be called after software initialization. 673 * 674 * Return: 675 * DMUB_STATUS_OK - success 676 * DMUB_STATUS_INVALID - unspecified error 677 */ 678 enum dmub_status dmub_srv_get_gpint_response(struct dmub_srv *dmub, 679 uint32_t *response); 680 681 /** 682 * dmub_srv_get_gpint_dataout() - Queries the GPINT DATAOUT. 683 * @dmub: the dmub service 684 * @dataout: the data for the GPINT DATAOUT 685 * 686 * Returns the response code for the last GPINT DATAOUT interrupt. 687 * 688 * Can be called after software initialization. 689 * 690 * Return: 691 * DMUB_STATUS_OK - success 692 * DMUB_STATUS_INVALID - unspecified error 693 */ 694 enum dmub_status dmub_srv_get_gpint_dataout(struct dmub_srv *dmub, 695 uint32_t *dataout); 696 697 /** 698 * dmub_flush_buffer_mem() - Read back entire frame buffer region. 699 * This ensures that the write from x86 has been flushed and will not 700 * hang the DMCUB. 701 * @fb: frame buffer to flush 702 * 703 * Can be called after software initialization. 704 */ 705 void dmub_flush_buffer_mem(const struct dmub_fb *fb); 706 707 /** 708 * dmub_srv_get_fw_boot_status() - Returns the DMUB boot status bits. 709 * 710 * @dmub: the dmub service 711 * @status: out pointer for firmware status 712 * 713 * Return: 714 * DMUB_STATUS_OK - success 715 * DMUB_STATUS_INVALID - unspecified error, unsupported 716 */ 717 enum dmub_status dmub_srv_get_fw_boot_status(struct dmub_srv *dmub, 718 union dmub_fw_boot_status *status); 719 720 enum dmub_status dmub_srv_cmd_with_reply_data(struct dmub_srv *dmub, 721 union dmub_rb_cmd *cmd); 722 723 bool dmub_srv_get_outbox0_msg(struct dmub_srv *dmub, struct dmcub_trace_buf_entry *entry); 724 725 bool dmub_srv_get_diagnostic_data(struct dmub_srv *dmub, struct dmub_diagnostic_data *diag_data); 726 727 #if defined(__cplusplus) 728 } 729 #endif 730 731 #endif /* _DMUB_SRV_H_ */ 732