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 #include "dc/dc_types.h" 69 70 #define DMUB_PC_SNAPSHOT_COUNT 10 71 72 /* Default tracebuffer size if meta is absent. */ 73 #define DMUB_TRACE_BUFFER_SIZE (64 * 1024) 74 75 /* Forward declarations */ 76 struct dmub_srv; 77 struct dmub_srv_common_regs; 78 struct dmub_srv_dcn31_regs; 79 80 struct dmcub_trace_buf_entry; 81 82 /* enum dmub_window_memory_type - memory location type specification for windows */ 83 enum dmub_window_memory_type { 84 DMUB_WINDOW_MEMORY_TYPE_FB = 0, 85 DMUB_WINDOW_MEMORY_TYPE_GART 86 }; 87 88 /* enum dmub_status - return code for dmcub functions */ 89 enum dmub_status { 90 DMUB_STATUS_OK = 0, 91 DMUB_STATUS_NO_CTX, 92 DMUB_STATUS_QUEUE_FULL, 93 DMUB_STATUS_TIMEOUT, 94 DMUB_STATUS_INVALID, 95 DMUB_STATUS_HW_FAILURE, 96 DMUB_STATUS_POWER_STATE_D3 97 }; 98 99 /* enum dmub_asic - dmub asic identifier */ 100 enum dmub_asic { 101 DMUB_ASIC_NONE = 0, 102 DMUB_ASIC_DCN20, 103 DMUB_ASIC_DCN21, 104 DMUB_ASIC_DCN30, 105 DMUB_ASIC_DCN301, 106 DMUB_ASIC_DCN302, 107 DMUB_ASIC_DCN303, 108 DMUB_ASIC_DCN31, 109 DMUB_ASIC_DCN31B, 110 DMUB_ASIC_DCN314, 111 DMUB_ASIC_DCN315, 112 DMUB_ASIC_DCN316, 113 DMUB_ASIC_DCN32, 114 DMUB_ASIC_DCN321, 115 DMUB_ASIC_DCN35, 116 DMUB_ASIC_DCN351, 117 DMUB_ASIC_DCN36, 118 DMUB_ASIC_DCN401, 119 DMUB_ASIC_MAX, 120 }; 121 122 /* enum dmub_window_id - dmub window identifier */ 123 enum dmub_window_id { 124 DMUB_WINDOW_0_INST_CONST = 0, 125 DMUB_WINDOW_1_STACK, 126 DMUB_WINDOW_2_BSS_DATA, 127 DMUB_WINDOW_3_VBIOS, 128 DMUB_WINDOW_4_MAILBOX, 129 DMUB_WINDOW_5_TRACEBUFF, 130 DMUB_WINDOW_6_FW_STATE, 131 DMUB_WINDOW_7_SCRATCH_MEM, 132 DMUB_WINDOW_SHARED_STATE, 133 DMUB_WINDOW_TOTAL, 134 }; 135 136 /* enum dmub_notification_type - dmub outbox notification identifier */ 137 enum dmub_notification_type { 138 DMUB_NOTIFICATION_NO_DATA = 0, 139 DMUB_NOTIFICATION_AUX_REPLY, 140 DMUB_NOTIFICATION_HPD, 141 DMUB_NOTIFICATION_HPD_IRQ, 142 DMUB_NOTIFICATION_SET_CONFIG_REPLY, 143 DMUB_NOTIFICATION_DPIA_NOTIFICATION, 144 DMUB_NOTIFICATION_HPD_SENSE_NOTIFY, 145 DMUB_NOTIFICATION_MAX 146 }; 147 148 /** 149 * DPIA NOTIFICATION Response Type 150 */ 151 enum dpia_notify_bw_alloc_status { 152 153 DPIA_BW_REQ_FAILED = 0, 154 DPIA_BW_REQ_SUCCESS, 155 DPIA_EST_BW_CHANGED, 156 DPIA_BW_ALLOC_CAPS_CHANGED 157 }; 158 159 /* enum dmub_memory_access_type - memory access method */ 160 enum dmub_memory_access_type { 161 DMUB_MEMORY_ACCESS_DEFAULT, 162 DMUB_MEMORY_ACCESS_CPU = DMUB_MEMORY_ACCESS_DEFAULT, 163 DMUB_MEMORY_ACCESS_DMA 164 }; 165 166 /* enum dmub_power_state type - to track DC power state in dmub_srv */ 167 enum dmub_srv_power_state_type { 168 DMUB_POWER_STATE_UNDEFINED = 0, 169 DMUB_POWER_STATE_D0 = 1, 170 DMUB_POWER_STATE_D3 = 8 171 }; 172 173 /** 174 * struct dmub_region - dmub hw memory region 175 * @base: base address for region, must be 256 byte aligned 176 * @top: top address for region 177 */ 178 struct dmub_region { 179 uint32_t base; 180 uint32_t top; 181 }; 182 183 /** 184 * struct dmub_window - dmub hw cache window 185 * @off: offset to the fb memory in gpu address space 186 * @r: region in uc address space for cache window 187 */ 188 struct dmub_window { 189 union dmub_addr offset; 190 struct dmub_region region; 191 }; 192 193 /** 194 * struct dmub_fb - defines a dmub framebuffer memory region 195 * @cpu_addr: cpu virtual address for the region, NULL if invalid 196 * @gpu_addr: gpu virtual address for the region, NULL if invalid 197 * @size: size of the region in bytes, zero if invalid 198 */ 199 struct dmub_fb { 200 void *cpu_addr; 201 uint64_t gpu_addr; 202 uint32_t size; 203 }; 204 205 /** 206 * struct dmub_srv_region_params - params used for calculating dmub regions 207 * @inst_const_size: size of the fw inst const section 208 * @bss_data_size: size of the fw bss data section 209 * @vbios_size: size of the vbios data 210 * @fw_bss_data: raw firmware bss data section 211 */ 212 struct dmub_srv_region_params { 213 uint32_t inst_const_size; 214 uint32_t bss_data_size; 215 uint32_t vbios_size; 216 const uint8_t *fw_inst_const; 217 const uint8_t *fw_bss_data; 218 const enum dmub_window_memory_type *window_memory_type; 219 }; 220 221 /** 222 * struct dmub_srv_region_info - output region info from the dmub service 223 * @fb_size: required minimum fb size for all regions, aligned to 4096 bytes 224 * @num_regions: number of regions used by the dmub service 225 * @regions: region info 226 * 227 * The regions are aligned such that they can be all placed within the 228 * same framebuffer but they can also be placed into different framebuffers. 229 * 230 * The size of each region can be calculated by the caller: 231 * size = reg.top - reg.base 232 * 233 * Care must be taken when performing custom allocations to ensure that each 234 * region base address is 256 byte aligned. 235 */ 236 struct dmub_srv_region_info { 237 uint32_t fb_size; 238 uint32_t gart_size; 239 uint8_t num_regions; 240 struct dmub_region regions[DMUB_WINDOW_TOTAL]; 241 }; 242 243 /** 244 * struct dmub_srv_memory_params - parameters used for driver fb setup 245 * @region_info: region info calculated by dmub service 246 * @cpu_fb_addr: base cpu address for the framebuffer 247 * @cpu_inbox_addr: base cpu address for the gart 248 * @gpu_fb_addr: base gpu virtual address for the framebuffer 249 * @gpu_inbox_addr: base gpu virtual address for the gart 250 */ 251 struct dmub_srv_memory_params { 252 const struct dmub_srv_region_info *region_info; 253 void *cpu_fb_addr; 254 void *cpu_gart_addr; 255 uint64_t gpu_fb_addr; 256 uint64_t gpu_gart_addr; 257 const enum dmub_window_memory_type *window_memory_type; 258 }; 259 260 /** 261 * struct dmub_srv_fb_info - output fb info from the dmub service 262 * @num_fbs: number of required dmub framebuffers 263 * @fbs: fb data for each region 264 * 265 * Output from the dmub service helper that can be used by the 266 * driver to prepare dmub_fb that can be passed into the dmub 267 * hw init service. 268 * 269 * Assumes that all regions are within the same framebuffer 270 * and have been setup according to the region_info generated 271 * by the dmub service. 272 */ 273 struct dmub_srv_fb_info { 274 uint8_t num_fb; 275 struct dmub_fb fb[DMUB_WINDOW_TOTAL]; 276 }; 277 278 /* 279 * struct dmub_srv_hw_params - params for dmub hardware initialization 280 * @fb: framebuffer info for each region 281 * @fb_base: base of the framebuffer aperture 282 * @fb_offset: offset of the framebuffer aperture 283 * @psp_version: psp version to pass for DMCU init 284 * @load_inst_const: true if DMUB should load inst const fw 285 */ 286 struct dmub_srv_hw_params { 287 struct dmub_fb *fb[DMUB_WINDOW_TOTAL]; 288 uint64_t fb_base; 289 uint64_t fb_offset; 290 uint32_t psp_version; 291 bool load_inst_const; 292 bool skip_panel_power_sequence; 293 bool disable_z10; 294 bool power_optimization; 295 bool dpia_supported; 296 bool disable_dpia; 297 bool usb4_cm_version; 298 bool fw_in_system_memory; 299 bool dpia_hpd_int_enable_supported; 300 bool disable_clock_gate; 301 bool disallow_dispclk_dppclk_ds; 302 bool ips_sequential_ono; 303 enum dmub_memory_access_type mem_access_type; 304 enum dmub_ips_disable_type disable_ips; 305 bool disallow_phy_access; 306 bool disable_sldo_opt; 307 bool enable_non_transparent_setconfig; 308 bool lower_hbr3_phy_ssc; 309 }; 310 311 /** 312 * struct dmub_srv_debug - Debug info for dmub_srv 313 * @timeout_occured: Indicates a timeout occured on any message from driver to dmub 314 * @timeout_cmd: first cmd sent from driver that timed out - subsequent timeouts are not stored 315 */ 316 struct dmub_timeout_info { 317 bool timeout_occured; 318 union dmub_rb_cmd timeout_cmd; 319 unsigned long long timestamp; 320 }; 321 322 /** 323 * struct dmub_diagnostic_data - Diagnostic data retrieved from DMCUB for 324 * debugging purposes, including logging, crash analysis, etc. 325 */ 326 struct dmub_diagnostic_data { 327 uint32_t dmcub_version; 328 uint32_t scratch[17]; 329 uint32_t pc[DMUB_PC_SNAPSHOT_COUNT]; 330 uint32_t undefined_address_fault_addr; 331 uint32_t inst_fetch_fault_addr; 332 uint32_t data_write_fault_addr; 333 uint32_t inbox1_rptr; 334 uint32_t inbox1_wptr; 335 uint32_t inbox1_size; 336 uint32_t inbox0_rptr; 337 uint32_t inbox0_wptr; 338 uint32_t inbox0_size; 339 uint32_t outbox1_rptr; 340 uint32_t outbox1_wptr; 341 uint32_t outbox1_size; 342 uint32_t gpint_datain0; 343 struct dmub_timeout_info timeout_info; 344 uint8_t is_dmcub_enabled : 1; 345 uint8_t is_dmcub_soft_reset : 1; 346 uint8_t is_dmcub_secure_reset : 1; 347 uint8_t is_traceport_en : 1; 348 uint8_t is_cw0_enabled : 1; 349 uint8_t is_cw6_enabled : 1; 350 }; 351 352 /** 353 * struct dmub_srv_base_funcs - Driver specific base callbacks 354 */ 355 struct dmub_srv_base_funcs { 356 /** 357 * @reg_read: 358 * 359 * Hook for reading a register. 360 * 361 * Return: The 32-bit register value from the given address. 362 */ 363 uint32_t (*reg_read)(void *ctx, uint32_t address); 364 365 /** 366 * @reg_write: 367 * 368 * Hook for writing a value to the register specified by address. 369 */ 370 void (*reg_write)(void *ctx, uint32_t address, uint32_t value); 371 }; 372 373 /** 374 * struct dmub_srv_hw_funcs - hardware sequencer funcs for dmub 375 */ 376 struct dmub_srv_hw_funcs { 377 /* private: internal use only */ 378 379 void (*init)(struct dmub_srv *dmub); 380 381 void (*reset)(struct dmub_srv *dmub); 382 383 void (*reset_release)(struct dmub_srv *dmub); 384 385 void (*backdoor_load)(struct dmub_srv *dmub, 386 const struct dmub_window *cw0, 387 const struct dmub_window *cw1); 388 389 void (*backdoor_load_zfb_mode)(struct dmub_srv *dmub, 390 const struct dmub_window *cw0, 391 const struct dmub_window *cw1); 392 void (*setup_windows)(struct dmub_srv *dmub, 393 const struct dmub_window *cw2, 394 const struct dmub_window *cw3, 395 const struct dmub_window *cw4, 396 const struct dmub_window *cw5, 397 const struct dmub_window *cw6, 398 const struct dmub_window *region6); 399 400 void (*setup_mailbox)(struct dmub_srv *dmub, 401 const struct dmub_region *inbox1); 402 403 uint32_t (*get_inbox1_wptr)(struct dmub_srv *dmub); 404 405 uint32_t (*get_inbox1_rptr)(struct dmub_srv *dmub); 406 407 void (*set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset); 408 409 void (*setup_out_mailbox)(struct dmub_srv *dmub, 410 const struct dmub_region *outbox1); 411 412 uint32_t (*get_outbox1_wptr)(struct dmub_srv *dmub); 413 414 void (*set_outbox1_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset); 415 416 void (*setup_outbox0)(struct dmub_srv *dmub, 417 const struct dmub_region *outbox0); 418 419 uint32_t (*get_outbox0_wptr)(struct dmub_srv *dmub); 420 421 void (*set_outbox0_rptr)(struct dmub_srv *dmub, uint32_t rptr_offset); 422 423 uint32_t (*emul_get_inbox1_rptr)(struct dmub_srv *dmub); 424 425 void (*emul_set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset); 426 427 bool (*is_supported)(struct dmub_srv *dmub); 428 429 bool (*is_psrsu_supported)(struct dmub_srv *dmub); 430 431 bool (*is_hw_init)(struct dmub_srv *dmub); 432 bool (*is_hw_powered_up)(struct dmub_srv *dmub); 433 434 void (*enable_dmub_boot_options)(struct dmub_srv *dmub, 435 const struct dmub_srv_hw_params *params); 436 437 void (*skip_dmub_panel_power_sequence)(struct dmub_srv *dmub, bool skip); 438 439 union dmub_fw_boot_status (*get_fw_status)(struct dmub_srv *dmub); 440 441 union dmub_fw_boot_options (*get_fw_boot_option)(struct dmub_srv *dmub); 442 443 void (*set_gpint)(struct dmub_srv *dmub, 444 union dmub_gpint_data_register reg); 445 446 bool (*is_gpint_acked)(struct dmub_srv *dmub, 447 union dmub_gpint_data_register reg); 448 449 uint32_t (*get_gpint_response)(struct dmub_srv *dmub); 450 451 uint32_t (*get_gpint_dataout)(struct dmub_srv *dmub); 452 453 void (*configure_dmub_in_system_memory)(struct dmub_srv *dmub); 454 void (*clear_inbox0_ack_register)(struct dmub_srv *dmub); 455 uint32_t (*read_inbox0_ack_register)(struct dmub_srv *dmub); 456 void (*send_inbox0_cmd)(struct dmub_srv *dmub, union dmub_inbox0_data_register data); 457 uint32_t (*get_current_time)(struct dmub_srv *dmub); 458 459 void (*get_diagnostic_data)(struct dmub_srv *dmub); 460 461 bool (*should_detect)(struct dmub_srv *dmub); 462 void (*init_reg_offsets)(struct dmub_srv *dmub, struct dc_context *ctx); 463 464 void (*subvp_save_surf_addr)(struct dmub_srv *dmub, const struct dc_plane_address *addr, uint8_t subvp_index); 465 void (*send_reg_inbox0_cmd_msg)(struct dmub_srv *dmub, 466 union dmub_rb_cmd *cmd); 467 uint32_t (*read_reg_inbox0_rsp_int_status)(struct dmub_srv *dmub); 468 void (*read_reg_inbox0_cmd_rsp)(struct dmub_srv *dmub, 469 union dmub_rb_cmd *cmd); 470 void (*write_reg_inbox0_rsp_int_ack)(struct dmub_srv *dmub); 471 uint32_t (*read_reg_outbox0_rdy_int_status)(struct dmub_srv *dmub); 472 void (*write_reg_outbox0_rdy_int_ack)(struct dmub_srv *dmub); 473 void (*read_reg_outbox0_msg)(struct dmub_srv *dmub, uint32_t *msg); 474 void (*write_reg_outbox0_rsp)(struct dmub_srv *dmub, uint32_t *rsp); 475 uint32_t (*read_reg_outbox0_rsp_int_status)(struct dmub_srv *dmub); 476 void (*enable_reg_inbox0_rsp_int)(struct dmub_srv *dmub, bool enable); 477 void (*enable_reg_outbox0_rdy_int)(struct dmub_srv *dmub, bool enable); 478 }; 479 480 /** 481 * struct dmub_srv_create_params - params for dmub service creation 482 * @base_funcs: driver supplied base routines 483 * @hw_funcs: optional overrides for hw funcs 484 * @user_ctx: context data for callback funcs 485 * @asic: driver supplied asic 486 * @fw_version: the current firmware version, if any 487 * @is_virtual: false for hw support only 488 */ 489 struct dmub_srv_create_params { 490 struct dmub_srv_base_funcs funcs; 491 struct dmub_srv_hw_funcs *hw_funcs; 492 void *user_ctx; 493 enum dmub_asic asic; 494 uint32_t fw_version; 495 bool is_virtual; 496 }; 497 498 /** 499 * struct dmub_srv - software state for dmcub 500 * @asic: dmub asic identifier 501 * @user_ctx: user provided context for the dmub_srv 502 * @fw_version: the current firmware version, if any 503 * @is_virtual: false if hardware support only 504 * @shared_state: dmub shared state between firmware and driver 505 * @fw_state: dmub firmware state pointer 506 */ 507 struct dmub_srv { 508 enum dmub_asic asic; 509 void *user_ctx; 510 uint32_t fw_version; 511 bool is_virtual; 512 struct dmub_fb scratch_mem_fb; 513 volatile struct dmub_shared_state_feature_block *shared_state; 514 volatile const struct dmub_fw_state *fw_state; 515 516 /* private: internal use only */ 517 const struct dmub_srv_common_regs *regs; 518 const struct dmub_srv_dcn31_regs *regs_dcn31; 519 struct dmub_srv_dcn32_regs *regs_dcn32; 520 struct dmub_srv_dcn35_regs *regs_dcn35; 521 const struct dmub_srv_dcn401_regs *regs_dcn401; 522 struct dmub_srv_base_funcs funcs; 523 struct dmub_srv_hw_funcs hw_funcs; 524 struct dmub_rb inbox1_rb; 525 uint32_t inbox1_last_wptr; 526 /** 527 * outbox1_rb is accessed without locks (dal & dc) 528 * and to be used only in dmub_srv_stat_get_notification() 529 */ 530 struct dmub_rb outbox1_rb; 531 532 struct dmub_rb outbox0_rb; 533 534 bool sw_init; 535 bool hw_init; 536 537 uint64_t fb_base; 538 uint64_t fb_offset; 539 uint32_t psp_version; 540 541 /* Feature capabilities reported by fw */ 542 struct dmub_fw_meta_info meta_info; 543 struct dmub_feature_caps feature_caps; 544 struct dmub_visual_confirm_color visual_confirm_color; 545 546 enum dmub_srv_power_state_type power_state; 547 struct dmub_diagnostic_data debug; 548 }; 549 550 /** 551 * struct dmub_notification - dmub notification data 552 * @type: dmub notification type 553 * @link_index: link index to identify aux connection 554 * @result: USB4 status returned from dmub 555 * @pending_notification: Indicates there are other pending notifications 556 * @aux_reply: aux reply 557 * @hpd_status: hpd status 558 * @bw_alloc_reply: BW Allocation reply from CM/DPIA 559 */ 560 struct dmub_notification { 561 enum dmub_notification_type type; 562 uint8_t link_index; 563 uint8_t result; 564 bool pending_notification; 565 union { 566 struct aux_reply_data aux_reply; 567 enum dp_hpd_status hpd_status; 568 enum set_config_status sc_status; 569 /** 570 * DPIA notification command. 571 */ 572 struct dmub_rb_cmd_dpia_notification dpia_notification; 573 struct dmub_rb_cmd_hpd_sense_notify_data hpd_sense_notify; 574 }; 575 }; 576 577 /* enum dmub_ips_mode - IPS mode identifier */ 578 enum dmub_ips_mode { 579 DMUB_IPS_MODE_IPS1_MAX = 0, 580 DMUB_IPS_MODE_IPS2, 581 DMUB_IPS_MODE_IPS1_RCG, 582 DMUB_IPS_MODE_IPS1_ONO2_ON 583 }; 584 585 /** 586 * DMUB firmware version helper macro - useful for checking if the version 587 * of a firmware to know if feature or functionality is supported or present. 588 */ 589 #define DMUB_FW_VERSION(major, minor, revision) \ 590 ((((major) & 0xFF) << 24) | (((minor) & 0xFF) << 16) | (((revision) & 0xFF) << 8)) 591 592 /** 593 * dmub_srv_create() - creates the DMUB service. 594 * @dmub: the dmub service 595 * @params: creation parameters for the service 596 * 597 * Return: 598 * DMUB_STATUS_OK - success 599 * DMUB_STATUS_INVALID - unspecified error 600 */ 601 enum dmub_status dmub_srv_create(struct dmub_srv *dmub, 602 const struct dmub_srv_create_params *params); 603 604 /** 605 * dmub_srv_destroy() - destroys the DMUB service. 606 * @dmub: the dmub service 607 */ 608 void dmub_srv_destroy(struct dmub_srv *dmub); 609 610 /** 611 * dmub_srv_calc_region_info() - retreives region info from the dmub service 612 * @dmub: the dmub service 613 * @params: parameters used to calculate region locations 614 * @info_out: the output region info from dmub 615 * 616 * Calculates the base and top address for all relevant dmub regions 617 * using the parameters given (if any). 618 * 619 * Return: 620 * DMUB_STATUS_OK - success 621 * DMUB_STATUS_INVALID - unspecified error 622 */ 623 enum dmub_status 624 dmub_srv_calc_region_info(struct dmub_srv *dmub, 625 const struct dmub_srv_region_params *params, 626 struct dmub_srv_region_info *out); 627 628 /** 629 * dmub_srv_calc_region_info() - retreives fb info from the dmub service 630 * @dmub: the dmub service 631 * @params: parameters used to calculate fb locations 632 * @info_out: the output fb info from dmub 633 * 634 * Calculates the base and top address for all relevant dmub regions 635 * using the parameters given (if any). 636 * 637 * Return: 638 * DMUB_STATUS_OK - success 639 * DMUB_STATUS_INVALID - unspecified error 640 */ 641 enum dmub_status dmub_srv_calc_mem_info(struct dmub_srv *dmub, 642 const struct dmub_srv_memory_params *params, 643 struct dmub_srv_fb_info *out); 644 645 /** 646 * dmub_srv_has_hw_support() - returns hw support state for dmcub 647 * @dmub: the dmub service 648 * @is_supported: hw support state 649 * 650 * Queries the hardware for DMCUB support and returns the result. 651 * 652 * Can be called before dmub_srv_hw_init(). 653 * 654 * Return: 655 * DMUB_STATUS_OK - success 656 * DMUB_STATUS_INVALID - unspecified error 657 */ 658 enum dmub_status dmub_srv_has_hw_support(struct dmub_srv *dmub, 659 bool *is_supported); 660 661 /** 662 * dmub_srv_is_hw_init() - returns hardware init state 663 * 664 * Return: 665 * DMUB_STATUS_OK - success 666 * DMUB_STATUS_INVALID - unspecified error 667 */ 668 enum dmub_status dmub_srv_is_hw_init(struct dmub_srv *dmub, bool *is_hw_init); 669 670 /** 671 * dmub_srv_hw_init() - initializes the underlying DMUB hardware 672 * @dmub: the dmub service 673 * @params: params for hardware initialization 674 * 675 * Resets the DMUB hardware and performs backdoor loading of the 676 * required cache regions based on the input framebuffer regions. 677 * 678 * Return: 679 * DMUB_STATUS_OK - success 680 * DMUB_STATUS_NO_CTX - dmcub context not initialized 681 * DMUB_STATUS_INVALID - unspecified error 682 */ 683 enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, 684 const struct dmub_srv_hw_params *params); 685 686 /** 687 * dmub_srv_hw_reset() - puts the DMUB hardware in reset state if initialized 688 * @dmub: the dmub service 689 * 690 * Before destroying the DMUB service or releasing the backing framebuffer 691 * memory we'll need to put the DMCUB into reset first. 692 * 693 * A subsequent call to dmub_srv_hw_init() will re-enable the DMCUB. 694 * 695 * Return: 696 * DMUB_STATUS_OK - success 697 * DMUB_STATUS_INVALID - unspecified error 698 */ 699 enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub); 700 701 /** 702 * dmub_srv_sync_inbox1() - sync sw state with hw state 703 * @dmub: the dmub service 704 * 705 * Sync sw state with hw state when resume from S0i3 706 * 707 * Return: 708 * DMUB_STATUS_OK - success 709 * DMUB_STATUS_INVALID - unspecified error 710 */ 711 enum dmub_status dmub_srv_sync_inbox1(struct dmub_srv *dmub); 712 713 /** 714 * dmub_srv_cmd_queue() - queues a command to the DMUB 715 * @dmub: the dmub service 716 * @cmd: the command to queue 717 * 718 * Queues a command to the DMUB service but does not begin execution 719 * immediately. 720 * 721 * Return: 722 * DMUB_STATUS_OK - success 723 * DMUB_STATUS_QUEUE_FULL - no remaining room in queue 724 * DMUB_STATUS_INVALID - unspecified error 725 */ 726 enum dmub_status dmub_srv_cmd_queue(struct dmub_srv *dmub, 727 const union dmub_rb_cmd *cmd); 728 729 /** 730 * dmub_srv_cmd_execute() - Executes a queued sequence to the dmub 731 * @dmub: the dmub service 732 * 733 * Begins execution of queued commands on the dmub. 734 * 735 * Return: 736 * DMUB_STATUS_OK - success 737 * DMUB_STATUS_INVALID - unspecified error 738 */ 739 enum dmub_status dmub_srv_cmd_execute(struct dmub_srv *dmub); 740 741 /** 742 * dmub_srv_wait_for_hw_pwr_up() - Waits for firmware hardware power up is completed 743 * @dmub: the dmub service 744 * @timeout_us: the maximum number of microseconds to wait 745 * 746 * Waits until firmware hardware is powered up. The maximum 747 * wait time is given in microseconds to prevent spinning forever. 748 * 749 * Return: 750 * DMUB_STATUS_OK - success 751 * DMUB_STATUS_TIMEOUT - timed out 752 * DMUB_STATUS_INVALID - unspecified error 753 */ 754 enum dmub_status dmub_srv_wait_for_hw_pwr_up(struct dmub_srv *dmub, 755 uint32_t timeout_us); 756 757 bool dmub_srv_is_hw_pwr_up(struct dmub_srv *dmub); 758 759 /** 760 * dmub_srv_wait_for_auto_load() - Waits for firmware auto load to complete 761 * @dmub: the dmub service 762 * @timeout_us: the maximum number of microseconds to wait 763 * 764 * Waits until firmware has been autoloaded by the DMCUB. The maximum 765 * wait time is given in microseconds to prevent spinning forever. 766 * 767 * On ASICs without firmware autoload support this function will return 768 * immediately. 769 * 770 * Return: 771 * DMUB_STATUS_OK - success 772 * DMUB_STATUS_TIMEOUT - wait for phy init timed out 773 * DMUB_STATUS_INVALID - unspecified error 774 */ 775 enum dmub_status dmub_srv_wait_for_auto_load(struct dmub_srv *dmub, 776 uint32_t timeout_us); 777 778 /** 779 * dmub_srv_wait_for_phy_init() - Waits for DMUB PHY init to complete 780 * @dmub: the dmub service 781 * @timeout_us: the maximum number of microseconds to wait 782 * 783 * Waits until the PHY has been initialized by the DMUB. The maximum 784 * wait time is given in microseconds to prevent spinning forever. 785 * 786 * On ASICs without PHY init support this function will return 787 * immediately. 788 * 789 * Return: 790 * DMUB_STATUS_OK - success 791 * DMUB_STATUS_TIMEOUT - wait for phy init timed out 792 * DMUB_STATUS_INVALID - unspecified error 793 */ 794 enum dmub_status dmub_srv_wait_for_phy_init(struct dmub_srv *dmub, 795 uint32_t timeout_us); 796 797 /** 798 * dmub_srv_wait_for_idle() - Waits for the DMUB to be idle 799 * @dmub: the dmub service 800 * @timeout_us: the maximum number of microseconds to wait 801 * 802 * Waits until the DMUB buffer is empty and all commands have 803 * finished processing. The maximum wait time is given in 804 * microseconds to prevent spinning forever. 805 * 806 * Return: 807 * DMUB_STATUS_OK - success 808 * DMUB_STATUS_TIMEOUT - wait for buffer to flush timed out 809 * DMUB_STATUS_INVALID - unspecified error 810 */ 811 enum dmub_status dmub_srv_wait_for_idle(struct dmub_srv *dmub, 812 uint32_t timeout_us); 813 814 /** 815 * dmub_srv_send_gpint_command() - Sends a GPINT based command. 816 * @dmub: the dmub service 817 * @command_code: the command code to send 818 * @param: the command parameter to send 819 * @timeout_us: the maximum number of microseconds to wait 820 * 821 * Sends a command via the general purpose interrupt (GPINT). 822 * Waits for the number of microseconds specified by timeout_us 823 * for the command ACK before returning. 824 * 825 * Can be called after software initialization. 826 * 827 * Return: 828 * DMUB_STATUS_OK - success 829 * DMUB_STATUS_TIMEOUT - wait for ACK timed out 830 * DMUB_STATUS_INVALID - unspecified error 831 */ 832 enum dmub_status 833 dmub_srv_send_gpint_command(struct dmub_srv *dmub, 834 enum dmub_gpint_command command_code, 835 uint16_t param, uint32_t timeout_us); 836 837 /** 838 * dmub_srv_get_gpint_response() - Queries the GPINT response. 839 * @dmub: the dmub service 840 * @response: the response for the last GPINT 841 * 842 * Returns the response code for the last GPINT interrupt. 843 * 844 * Can be called after software initialization. 845 * 846 * Return: 847 * DMUB_STATUS_OK - success 848 * DMUB_STATUS_INVALID - unspecified error 849 */ 850 enum dmub_status dmub_srv_get_gpint_response(struct dmub_srv *dmub, 851 uint32_t *response); 852 853 /** 854 * dmub_srv_get_gpint_dataout() - Queries the GPINT DATAOUT. 855 * @dmub: the dmub service 856 * @dataout: the data for the GPINT DATAOUT 857 * 858 * Returns the response code for the last GPINT DATAOUT interrupt. 859 * 860 * Can be called after software initialization. 861 * 862 * Return: 863 * DMUB_STATUS_OK - success 864 * DMUB_STATUS_INVALID - unspecified error 865 */ 866 enum dmub_status dmub_srv_get_gpint_dataout(struct dmub_srv *dmub, 867 uint32_t *dataout); 868 869 /** 870 * dmub_flush_buffer_mem() - Read back entire frame buffer region. 871 * This ensures that the write from x86 has been flushed and will not 872 * hang the DMCUB. 873 * @fb: frame buffer to flush 874 * 875 * Can be called after software initialization. 876 */ 877 void dmub_flush_buffer_mem(const struct dmub_fb *fb); 878 879 /** 880 * dmub_srv_get_fw_boot_status() - Returns the DMUB boot status bits. 881 * 882 * @dmub: the dmub service 883 * @status: out pointer for firmware status 884 * 885 * Return: 886 * DMUB_STATUS_OK - success 887 * DMUB_STATUS_INVALID - unspecified error, unsupported 888 */ 889 enum dmub_status dmub_srv_get_fw_boot_status(struct dmub_srv *dmub, 890 union dmub_fw_boot_status *status); 891 892 enum dmub_status dmub_srv_get_fw_boot_option(struct dmub_srv *dmub, 893 union dmub_fw_boot_options *option); 894 895 enum dmub_status dmub_srv_cmd_with_reply_data(struct dmub_srv *dmub, 896 union dmub_rb_cmd *cmd); 897 898 enum dmub_status dmub_srv_set_skip_panel_power_sequence(struct dmub_srv *dmub, 899 bool skip); 900 901 bool dmub_srv_get_outbox0_msg(struct dmub_srv *dmub, struct dmcub_trace_buf_entry *entry); 902 903 bool dmub_srv_get_diagnostic_data(struct dmub_srv *dmub); 904 905 bool dmub_srv_should_detect(struct dmub_srv *dmub); 906 907 /** 908 * dmub_srv_send_inbox0_cmd() - Send command to DMUB using INBOX0 909 * @dmub: the dmub service 910 * @data: the data to be sent in the INBOX0 command 911 * 912 * Send command by writing directly to INBOX0 WPTR 913 * 914 * Return: 915 * DMUB_STATUS_OK - success 916 * DMUB_STATUS_INVALID - hw_init false or hw function does not exist 917 */ 918 enum dmub_status dmub_srv_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data); 919 920 /** 921 * dmub_srv_wait_for_inbox0_ack() - wait for DMUB to ACK INBOX0 command 922 * @dmub: the dmub service 923 * @timeout_us: the maximum number of microseconds to wait 924 * 925 * Wait for DMUB to ACK the INBOX0 message 926 * 927 * Return: 928 * DMUB_STATUS_OK - success 929 * DMUB_STATUS_INVALID - hw_init false or hw function does not exist 930 * DMUB_STATUS_TIMEOUT - wait for ack timed out 931 */ 932 enum dmub_status dmub_srv_wait_for_inbox0_ack(struct dmub_srv *dmub, uint32_t timeout_us); 933 934 /** 935 * dmub_srv_wait_for_inbox0_ack() - clear ACK register for INBOX0 936 * @dmub: the dmub service 937 * 938 * Clear ACK register for INBOX0 939 * 940 * Return: 941 * DMUB_STATUS_OK - success 942 * DMUB_STATUS_INVALID - hw_init false or hw function does not exist 943 */ 944 enum dmub_status dmub_srv_clear_inbox0_ack(struct dmub_srv *dmub); 945 946 /** 947 * dmub_srv_subvp_save_surf_addr() - Save primary and meta address for subvp on each flip 948 * @dmub: The dmub service 949 * @addr: The surface address to be programmed on the current flip 950 * @subvp_index: Index of subvp pipe, indicates which subvp pipe the address should be saved for 951 * 952 * Function to save the surface flip addr into scratch registers. This is to fix a race condition 953 * between FW and driver reading / writing to the surface address at the same time. This is 954 * required because there is no EARLIEST_IN_USE_META. 955 * 956 * Return: 957 * void 958 */ 959 void dmub_srv_subvp_save_surf_addr(struct dmub_srv *dmub, const struct dc_plane_address *addr, uint8_t subvp_index); 960 961 /** 962 * dmub_srv_send_reg_inbox0_cmd() - send a dmub command and wait for the command 963 * being processed by DMUB. 964 * @dmub: The dmub service 965 * @cmd: The dmub command being sent. If with_replay is true, the function will 966 * update cmd with replied data. 967 * @with_reply: true if DMUB reply needs to be copied back to cmd. false if the 968 * cmd doesn't need to be replied. 969 * @timeout_us: timeout in microseconds. 970 * 971 * Return: 972 * DMUB_STATUS_OK - success 973 * DMUB_STATUS_TIMEOUT - DMUB fails to process the command within the timeout 974 * interval. 975 */ 976 enum dmub_status dmub_srv_send_reg_inbox0_cmd( 977 struct dmub_srv *dmub, 978 union dmub_rb_cmd *cmd, 979 bool with_reply, uint32_t timeout_us); 980 981 /** 982 * dmub_srv_set_power_state() - Track DC power state in dmub_srv 983 * @dmub: The dmub service 984 * @power_state: DC power state setting 985 * 986 * Store DC power state in dmub_srv. If dmub_srv is in D3, then don't send messages to DMUB 987 * 988 * Return: 989 * void 990 */ 991 void dmub_srv_set_power_state(struct dmub_srv *dmub, enum dmub_srv_power_state_type dmub_srv_power_state); 992 993 #endif /* _DMUB_SRV_H_ */ 994