1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (c) 2003-2022, Intel Corporation. All rights reserved 4 * Intel Management Engine Interface (Intel MEI) Linux driver 5 */ 6 7 #ifndef _MEI_HW_TYPES_H_ 8 #define _MEI_HW_TYPES_H_ 9 10 #include <linux/uuid.h> 11 12 /* 13 * Timeouts in Seconds 14 */ 15 #define MEI_HW_READY_TIMEOUT 2 /* Timeout on ready message */ 16 #define MEI_CONNECT_TIMEOUT 3 /* HPS: at least 2 seconds */ 17 18 #define MEI_CL_CONNECT_TIMEOUT 15 /* HPS: Client Connect Timeout */ 19 #define MEI_CL_CONNECT_TIMEOUT_SLOW 30 /* HPS: Client Connect Timeout, slow FW */ 20 #define MEI_CLIENTS_INIT_TIMEOUT 15 /* HPS: Clients Enumeration Timeout */ 21 22 #define MEI_PGI_TIMEOUT 1 /* PG Isolation time response 1 sec */ 23 #define MEI_D0I3_TIMEOUT 5 /* D0i3 set/unset max response time */ 24 #define MEI_HBM_TIMEOUT 1 /* 1 second */ 25 #define MEI_HBM_TIMEOUT_SLOW 5 /* 5 second, slow FW */ 26 27 #define MKHI_RCV_TIMEOUT 500 /* receive timeout in msec */ 28 #define MKHI_RCV_TIMEOUT_SLOW 10000 /* receive timeout in msec, slow FW */ 29 30 /* 31 * FW page size for DMA allocations 32 */ 33 #define MEI_FW_PAGE_SIZE 4096UL 34 35 /* 36 * MEI Version 37 */ 38 #define HBM_MINOR_VERSION 2 39 #define HBM_MAJOR_VERSION 2 40 41 /* 42 * MEI version with PGI support 43 */ 44 #define HBM_MINOR_VERSION_PGI 1 45 #define HBM_MAJOR_VERSION_PGI 1 46 47 /* 48 * MEI version with Dynamic clients support 49 */ 50 #define HBM_MINOR_VERSION_DC 0 51 #define HBM_MAJOR_VERSION_DC 2 52 53 /* 54 * MEI version with immediate reply to enum request support 55 */ 56 #define HBM_MINOR_VERSION_IE 0 57 #define HBM_MAJOR_VERSION_IE 2 58 59 /* 60 * MEI version with disconnect on connection timeout support 61 */ 62 #define HBM_MINOR_VERSION_DOT 0 63 #define HBM_MAJOR_VERSION_DOT 2 64 65 /* 66 * MEI version with notification support 67 */ 68 #define HBM_MINOR_VERSION_EV 0 69 #define HBM_MAJOR_VERSION_EV 2 70 71 /* 72 * MEI version with fixed address client support 73 */ 74 #define HBM_MINOR_VERSION_FA 0 75 #define HBM_MAJOR_VERSION_FA 2 76 77 /* 78 * MEI version with OS ver message support 79 */ 80 #define HBM_MINOR_VERSION_OS 0 81 #define HBM_MAJOR_VERSION_OS 2 82 83 /* 84 * MEI version with dma ring support 85 */ 86 #define HBM_MINOR_VERSION_DR 1 87 #define HBM_MAJOR_VERSION_DR 2 88 89 /* 90 * MEI version with vm tag support 91 */ 92 #define HBM_MINOR_VERSION_VT 2 93 #define HBM_MAJOR_VERSION_VT 2 94 95 /* 96 * MEI version with capabilities message support 97 */ 98 #define HBM_MINOR_VERSION_CAP 2 99 #define HBM_MAJOR_VERSION_CAP 2 100 101 /* 102 * MEI version with client DMA support 103 */ 104 #define HBM_MINOR_VERSION_CD 2 105 #define HBM_MAJOR_VERSION_CD 2 106 107 /* Host bus message command opcode */ 108 #define MEI_HBM_CMD_OP_MSK 0x7f 109 /* Host bus message command RESPONSE */ 110 #define MEI_HBM_CMD_RES_MSK 0x80 111 112 /* 113 * MEI Bus Message Command IDs 114 */ 115 #define HOST_START_REQ_CMD 0x01 116 #define HOST_START_RES_CMD 0x81 117 118 #define HOST_STOP_REQ_CMD 0x02 119 #define HOST_STOP_RES_CMD 0x82 120 121 #define ME_STOP_REQ_CMD 0x03 122 123 #define HOST_ENUM_REQ_CMD 0x04 124 #define HOST_ENUM_RES_CMD 0x84 125 126 #define HOST_CLIENT_PROPERTIES_REQ_CMD 0x05 127 #define HOST_CLIENT_PROPERTIES_RES_CMD 0x85 128 129 #define CLIENT_CONNECT_REQ_CMD 0x06 130 #define CLIENT_CONNECT_RES_CMD 0x86 131 132 #define CLIENT_DISCONNECT_REQ_CMD 0x07 133 #define CLIENT_DISCONNECT_RES_CMD 0x87 134 135 #define MEI_FLOW_CONTROL_CMD 0x08 136 137 #define MEI_PG_ISOLATION_ENTRY_REQ_CMD 0x0a 138 #define MEI_PG_ISOLATION_ENTRY_RES_CMD 0x8a 139 #define MEI_PG_ISOLATION_EXIT_REQ_CMD 0x0b 140 #define MEI_PG_ISOLATION_EXIT_RES_CMD 0x8b 141 142 #define MEI_HBM_ADD_CLIENT_REQ_CMD 0x0f 143 #define MEI_HBM_ADD_CLIENT_RES_CMD 0x8f 144 145 #define MEI_HBM_NOTIFY_REQ_CMD 0x10 146 #define MEI_HBM_NOTIFY_RES_CMD 0x90 147 #define MEI_HBM_NOTIFICATION_CMD 0x11 148 149 #define MEI_HBM_DMA_SETUP_REQ_CMD 0x12 150 #define MEI_HBM_DMA_SETUP_RES_CMD 0x92 151 152 #define MEI_HBM_CAPABILITIES_REQ_CMD 0x13 153 #define MEI_HBM_CAPABILITIES_RES_CMD 0x93 154 155 #define MEI_HBM_CLIENT_DMA_MAP_REQ_CMD 0x14 156 #define MEI_HBM_CLIENT_DMA_MAP_RES_CMD 0x94 157 158 #define MEI_HBM_CLIENT_DMA_UNMAP_REQ_CMD 0x15 159 #define MEI_HBM_CLIENT_DMA_UNMAP_RES_CMD 0x95 160 161 /* 162 * MEI Stop Reason 163 * used by hbm_host_stop_request.reason 164 */ 165 enum mei_stop_reason_types { 166 DRIVER_STOP_REQUEST = 0x00, 167 DEVICE_D1_ENTRY = 0x01, 168 DEVICE_D2_ENTRY = 0x02, 169 DEVICE_D3_ENTRY = 0x03, 170 SYSTEM_S1_ENTRY = 0x04, 171 SYSTEM_S2_ENTRY = 0x05, 172 SYSTEM_S3_ENTRY = 0x06, 173 SYSTEM_S4_ENTRY = 0x07, 174 SYSTEM_S5_ENTRY = 0x08 175 }; 176 177 178 /** 179 * enum mei_hbm_status - mei host bus messages return values 180 * 181 * @MEI_HBMS_SUCCESS : status success 182 * @MEI_HBMS_CLIENT_NOT_FOUND : client not found 183 * @MEI_HBMS_ALREADY_EXISTS : connection already established 184 * @MEI_HBMS_REJECTED : connection is rejected 185 * @MEI_HBMS_INVALID_PARAMETER : invalid parameter 186 * @MEI_HBMS_NOT_ALLOWED : operation not allowed 187 * @MEI_HBMS_ALREADY_STARTED : system is already started 188 * @MEI_HBMS_NOT_STARTED : system not started 189 * 190 * @MEI_HBMS_MAX : sentinel 191 */ 192 enum mei_hbm_status { 193 MEI_HBMS_SUCCESS = 0, 194 MEI_HBMS_CLIENT_NOT_FOUND = 1, 195 MEI_HBMS_ALREADY_EXISTS = 2, 196 MEI_HBMS_REJECTED = 3, 197 MEI_HBMS_INVALID_PARAMETER = 4, 198 MEI_HBMS_NOT_ALLOWED = 5, 199 MEI_HBMS_ALREADY_STARTED = 6, 200 MEI_HBMS_NOT_STARTED = 7, 201 202 MEI_HBMS_MAX 203 }; 204 205 206 /* 207 * Client Connect Status 208 * used by hbm_client_connect_response.status 209 */ 210 enum mei_cl_connect_status { 211 MEI_CL_CONN_SUCCESS = MEI_HBMS_SUCCESS, 212 MEI_CL_CONN_NOT_FOUND = MEI_HBMS_CLIENT_NOT_FOUND, 213 MEI_CL_CONN_ALREADY_STARTED = MEI_HBMS_ALREADY_EXISTS, 214 MEI_CL_CONN_OUT_OF_RESOURCES = MEI_HBMS_REJECTED, 215 MEI_CL_CONN_MESSAGE_SMALL = MEI_HBMS_INVALID_PARAMETER, 216 MEI_CL_CONN_NOT_ALLOWED = MEI_HBMS_NOT_ALLOWED, 217 }; 218 219 /* 220 * Client Disconnect Status 221 */ 222 enum mei_cl_disconnect_status { 223 MEI_CL_DISCONN_SUCCESS = MEI_HBMS_SUCCESS 224 }; 225 226 /** 227 * enum mei_ext_hdr_type - extended header type used in 228 * extended header TLV 229 * 230 * @MEI_EXT_HDR_NONE: sentinel 231 * @MEI_EXT_HDR_VTAG: vtag header 232 */ 233 enum mei_ext_hdr_type { 234 MEI_EXT_HDR_NONE = 0, 235 MEI_EXT_HDR_VTAG = 1, 236 }; 237 238 /** 239 * struct mei_ext_hdr - extend header descriptor (TLV) 240 * @type: enum mei_ext_hdr_type 241 * @length: length excluding descriptor 242 * @ext_payload: payload of the specific extended header 243 * @hdr: place holder for actual header 244 */ 245 struct mei_ext_hdr { 246 u8 type; 247 u8 length; 248 u8 data[]; 249 } __packed; 250 251 /** 252 * struct mei_ext_meta_hdr - extend header meta data 253 * @count: number of headers 254 * @size: total size of the extended header list excluding meta header 255 * @reserved: reserved 256 * @hdrs: extended headers TLV list 257 */ 258 struct mei_ext_meta_hdr { 259 u8 count; 260 u8 size; 261 u8 reserved[2]; 262 u8 hdrs[]; 263 } __packed; 264 265 /** 266 * struct mei_ext_hdr_vtag - extend header for vtag 267 * 268 * @hdr: standard extend header 269 * @vtag: virtual tag 270 * @reserved: reserved 271 */ 272 struct mei_ext_hdr_vtag { 273 struct mei_ext_hdr hdr; 274 u8 vtag; 275 u8 reserved; 276 } __packed; 277 278 /* 279 * Extended header iterator functions 280 */ 281 /** 282 * mei_ext_hdr - extended header iterator begin 283 * 284 * @meta: meta header of the extended header list 285 * 286 * Return: 287 * The first extended header 288 */ 289 static inline struct mei_ext_hdr *mei_ext_begin(struct mei_ext_meta_hdr *meta) 290 { 291 return (struct mei_ext_hdr *)meta->hdrs; 292 } 293 294 /** 295 * mei_ext_last - check if the ext is the last one in the TLV list 296 * 297 * @meta: meta header of the extended header list 298 * @ext: a meta header on the list 299 * 300 * Return: true if ext is the last header on the list 301 */ 302 static inline bool mei_ext_last(struct mei_ext_meta_hdr *meta, 303 struct mei_ext_hdr *ext) 304 { 305 return (u8 *)ext >= (u8 *)meta + sizeof(*meta) + (meta->size * 4); 306 } 307 308 /** 309 * mei_ext_next - following extended header on the TLV list 310 * 311 * @ext: current extend header 312 * 313 * Context: The function does not check for the overflows, 314 * one should call mei_ext_last before. 315 * 316 * Return: The following extend header after @ext 317 */ 318 static inline struct mei_ext_hdr *mei_ext_next(struct mei_ext_hdr *ext) 319 { 320 return (struct mei_ext_hdr *)((u8 *)ext + (ext->length * 4)); 321 } 322 323 /** 324 * struct mei_msg_hdr - MEI BUS Interface Section 325 * 326 * @me_addr: device address 327 * @host_addr: host address 328 * @length: message length 329 * @reserved: reserved 330 * @extended: message has extended header 331 * @dma_ring: message is on dma ring 332 * @internal: message is internal 333 * @msg_complete: last packet of the message 334 * @extension: extension of the header 335 */ 336 struct mei_msg_hdr { 337 u32 me_addr:8; 338 u32 host_addr:8; 339 u32 length:9; 340 u32 reserved:3; 341 u32 extended:1; 342 u32 dma_ring:1; 343 u32 internal:1; 344 u32 msg_complete:1; 345 u32 extension[]; 346 } __packed; 347 348 /* The length is up to 9 bits */ 349 #define MEI_MSG_MAX_LEN_MASK GENMASK(9, 0) 350 351 struct mei_bus_message { 352 u8 hbm_cmd; 353 u8 data[]; 354 } __packed; 355 356 /** 357 * struct hbm_cl_cmd - client specific host bus command 358 * CONNECT, DISCONNECT, and FlOW CONTROL 359 * 360 * @hbm_cmd: bus message command header 361 * @me_addr: address of the client in ME 362 * @host_addr: address of the client in the driver 363 * @data: generic data 364 */ 365 struct mei_hbm_cl_cmd { 366 u8 hbm_cmd; 367 u8 me_addr; 368 u8 host_addr; 369 u8 data; 370 }; 371 372 struct hbm_version { 373 u8 minor_version; 374 u8 major_version; 375 } __packed; 376 377 struct hbm_host_version_request { 378 u8 hbm_cmd; 379 u8 reserved; 380 struct hbm_version host_version; 381 } __packed; 382 383 struct hbm_host_version_response { 384 u8 hbm_cmd; 385 u8 host_version_supported; 386 struct hbm_version me_max_version; 387 } __packed; 388 389 struct hbm_host_stop_request { 390 u8 hbm_cmd; 391 u8 reason; 392 u8 reserved[2]; 393 } __packed; 394 395 struct hbm_host_stop_response { 396 u8 hbm_cmd; 397 u8 reserved[3]; 398 } __packed; 399 400 struct hbm_me_stop_request { 401 u8 hbm_cmd; 402 u8 reason; 403 u8 reserved[2]; 404 } __packed; 405 406 /** 407 * enum hbm_host_enum_flags - enumeration request flags (HBM version >= 2.0) 408 * 409 * @MEI_HBM_ENUM_F_ALLOW_ADD: allow dynamic clients add 410 * @MEI_HBM_ENUM_F_IMMEDIATE_ENUM: allow FW to send answer immediately 411 */ 412 enum hbm_host_enum_flags { 413 MEI_HBM_ENUM_F_ALLOW_ADD = BIT(0), 414 MEI_HBM_ENUM_F_IMMEDIATE_ENUM = BIT(1), 415 }; 416 417 /** 418 * struct hbm_host_enum_request - enumeration request from host to fw 419 * 420 * @hbm_cmd : bus message command header 421 * @flags : request flags 422 * @reserved: reserved 423 */ 424 struct hbm_host_enum_request { 425 u8 hbm_cmd; 426 u8 flags; 427 u8 reserved[2]; 428 } __packed; 429 430 struct hbm_host_enum_response { 431 u8 hbm_cmd; 432 u8 reserved[3]; 433 u8 valid_addresses[32]; 434 } __packed; 435 436 /** 437 * struct mei_client_properties - mei client properties 438 * 439 * @protocol_name: guid of the client 440 * @protocol_version: client protocol version 441 * @max_number_of_connections: number of possible connections. 442 * @fixed_address: fixed me address (0 if the client is dynamic) 443 * @single_recv_buf: 1 if all connections share a single receive buffer. 444 * @vt_supported: the client support vtag 445 * @reserved: reserved 446 * @max_msg_length: MTU of the client 447 */ 448 struct mei_client_properties { 449 uuid_le protocol_name; 450 u8 protocol_version; 451 u8 max_number_of_connections; 452 u8 fixed_address; 453 u8 single_recv_buf:1; 454 u8 vt_supported:1; 455 u8 reserved:6; 456 u32 max_msg_length; 457 } __packed; 458 459 struct hbm_props_request { 460 u8 hbm_cmd; 461 u8 me_addr; 462 u8 reserved[2]; 463 } __packed; 464 465 struct hbm_props_response { 466 u8 hbm_cmd; 467 u8 me_addr; 468 u8 status; 469 u8 reserved; 470 struct mei_client_properties client_properties; 471 } __packed; 472 473 /** 474 * struct hbm_add_client_request - request to add a client 475 * might be sent by fw after enumeration has already completed 476 * 477 * @hbm_cmd: bus message command header 478 * @me_addr: address of the client in ME 479 * @reserved: reserved 480 * @client_properties: client properties 481 */ 482 struct hbm_add_client_request { 483 u8 hbm_cmd; 484 u8 me_addr; 485 u8 reserved[2]; 486 struct mei_client_properties client_properties; 487 } __packed; 488 489 /** 490 * struct hbm_add_client_response - response to add a client 491 * sent by the host to report client addition status to fw 492 * 493 * @hbm_cmd: bus message command header 494 * @me_addr: address of the client in ME 495 * @status: if HBMS_SUCCESS then the client can now accept connections. 496 * @reserved: reserved 497 */ 498 struct hbm_add_client_response { 499 u8 hbm_cmd; 500 u8 me_addr; 501 u8 status; 502 u8 reserved; 503 } __packed; 504 505 /** 506 * struct hbm_power_gate - power gate request/response 507 * 508 * @hbm_cmd: bus message command header 509 * @reserved: reserved 510 */ 511 struct hbm_power_gate { 512 u8 hbm_cmd; 513 u8 reserved[3]; 514 } __packed; 515 516 /** 517 * struct hbm_client_connect_request - connect/disconnect request 518 * 519 * @hbm_cmd: bus message command header 520 * @me_addr: address of the client in ME 521 * @host_addr: address of the client in the driver 522 * @reserved: reserved 523 */ 524 struct hbm_client_connect_request { 525 u8 hbm_cmd; 526 u8 me_addr; 527 u8 host_addr; 528 u8 reserved; 529 } __packed; 530 531 /** 532 * struct hbm_client_connect_response - connect/disconnect response 533 * 534 * @hbm_cmd: bus message command header 535 * @me_addr: address of the client in ME 536 * @host_addr: address of the client in the driver 537 * @status: status of the request 538 */ 539 struct hbm_client_connect_response { 540 u8 hbm_cmd; 541 u8 me_addr; 542 u8 host_addr; 543 u8 status; 544 } __packed; 545 546 547 #define MEI_FC_MESSAGE_RESERVED_LENGTH 5 548 549 struct hbm_flow_control { 550 u8 hbm_cmd; 551 u8 me_addr; 552 u8 host_addr; 553 u8 reserved[MEI_FC_MESSAGE_RESERVED_LENGTH]; 554 } __packed; 555 556 #define MEI_HBM_NOTIFICATION_START 1 557 #define MEI_HBM_NOTIFICATION_STOP 0 558 /** 559 * struct hbm_notification_request - start/stop notification request 560 * 561 * @hbm_cmd: bus message command header 562 * @me_addr: address of the client in ME 563 * @host_addr: address of the client in the driver 564 * @start: start = 1 or stop = 0 asynchronous notifications 565 */ 566 struct hbm_notification_request { 567 u8 hbm_cmd; 568 u8 me_addr; 569 u8 host_addr; 570 u8 start; 571 } __packed; 572 573 /** 574 * struct hbm_notification_response - start/stop notification response 575 * 576 * @hbm_cmd: bus message command header 577 * @me_addr: address of the client in ME 578 * @host_addr: - address of the client in the driver 579 * @status: (mei_hbm_status) response status for the request 580 * - MEI_HBMS_SUCCESS: successful stop/start 581 * - MEI_HBMS_CLIENT_NOT_FOUND: if the connection could not be found. 582 * - MEI_HBMS_ALREADY_STARTED: for start requests for a previously 583 * started notification. 584 * - MEI_HBMS_NOT_STARTED: for stop request for a connected client for whom 585 * asynchronous notifications are currently disabled. 586 * 587 * @start: start = 1 or stop = 0 asynchronous notifications 588 * @reserved: reserved 589 */ 590 struct hbm_notification_response { 591 u8 hbm_cmd; 592 u8 me_addr; 593 u8 host_addr; 594 u8 status; 595 u8 start; 596 u8 reserved[3]; 597 } __packed; 598 599 /** 600 * struct hbm_notification - notification event 601 * 602 * @hbm_cmd: bus message command header 603 * @me_addr: address of the client in ME 604 * @host_addr: address of the client in the driver 605 * @reserved: reserved for alignment 606 */ 607 struct hbm_notification { 608 u8 hbm_cmd; 609 u8 me_addr; 610 u8 host_addr; 611 u8 reserved; 612 } __packed; 613 614 /** 615 * struct hbm_dma_mem_dscr - dma ring 616 * 617 * @addr_hi: the high 32bits of 64 bit address 618 * @addr_lo: the low 32bits of 64 bit address 619 * @size : size in bytes (must be power of 2) 620 */ 621 struct hbm_dma_mem_dscr { 622 u32 addr_hi; 623 u32 addr_lo; 624 u32 size; 625 } __packed; 626 627 enum { 628 DMA_DSCR_HOST = 0, 629 DMA_DSCR_DEVICE = 1, 630 DMA_DSCR_CTRL = 2, 631 DMA_DSCR_NUM, 632 }; 633 634 /** 635 * struct hbm_dma_setup_request - dma setup request 636 * 637 * @hbm_cmd: bus message command header 638 * @reserved: reserved for alignment 639 * @dma_dscr: dma descriptor for HOST, DEVICE, and CTRL 640 */ 641 struct hbm_dma_setup_request { 642 u8 hbm_cmd; 643 u8 reserved[3]; 644 struct hbm_dma_mem_dscr dma_dscr[DMA_DSCR_NUM]; 645 } __packed; 646 647 /** 648 * struct hbm_dma_setup_response - dma setup response 649 * 650 * @hbm_cmd: bus message command header 651 * @status: 0 on success; otherwise DMA setup failed. 652 * @reserved: reserved for alignment 653 */ 654 struct hbm_dma_setup_response { 655 u8 hbm_cmd; 656 u8 status; 657 u8 reserved[2]; 658 } __packed; 659 660 /** 661 * struct mei_dma_ring_ctrl - dma ring control block 662 * 663 * @hbuf_wr_idx: host circular buffer write index in slots 664 * @reserved1: reserved for alignment 665 * @hbuf_rd_idx: host circular buffer read index in slots 666 * @reserved2: reserved for alignment 667 * @dbuf_wr_idx: device circular buffer write index in slots 668 * @reserved3: reserved for alignment 669 * @dbuf_rd_idx: device circular buffer read index in slots 670 * @reserved4: reserved for alignment 671 */ 672 struct hbm_dma_ring_ctrl { 673 u32 hbuf_wr_idx; 674 u32 reserved1; 675 u32 hbuf_rd_idx; 676 u32 reserved2; 677 u32 dbuf_wr_idx; 678 u32 reserved3; 679 u32 dbuf_rd_idx; 680 u32 reserved4; 681 } __packed; 682 683 /* virtual tag supported */ 684 #define HBM_CAP_VT BIT(0) 685 /* client dma supported */ 686 #define HBM_CAP_CD BIT(2) 687 688 /** 689 * struct hbm_capability_request - capability request from host to fw 690 * 691 * @hbm_cmd : bus message command header 692 * @capability_requested: bitmask of capabilities requested by host 693 */ 694 struct hbm_capability_request { 695 u8 hbm_cmd; 696 u8 capability_requested[3]; 697 } __packed; 698 699 /** 700 * struct hbm_capability_response - capability response from fw to host 701 * 702 * @hbm_cmd : bus message command header 703 * @capability_granted: bitmask of capabilities granted by FW 704 */ 705 struct hbm_capability_response { 706 u8 hbm_cmd; 707 u8 capability_granted[3]; 708 } __packed; 709 710 /** 711 * struct hbm_client_dma_map_request - client dma map request from host to fw 712 * 713 * @hbm_cmd: bus message command header 714 * @client_buffer_id: client buffer id 715 * @reserved: reserved 716 * @address_lsb: DMA address LSB 717 * @address_msb: DMA address MSB 718 * @size: DMA size 719 */ 720 struct hbm_client_dma_map_request { 721 u8 hbm_cmd; 722 u8 client_buffer_id; 723 u8 reserved[2]; 724 u32 address_lsb; 725 u32 address_msb; 726 u32 size; 727 } __packed; 728 729 /** 730 * struct hbm_client_dma_unmap_request 731 * client dma unmap request from the host to the firmware 732 * 733 * @hbm_cmd: bus message command header 734 * @status: unmap status 735 * @client_buffer_id: client buffer id 736 * @reserved: reserved 737 */ 738 struct hbm_client_dma_unmap_request { 739 u8 hbm_cmd; 740 u8 status; 741 u8 client_buffer_id; 742 u8 reserved; 743 } __packed; 744 745 /** 746 * struct hbm_client_dma_response 747 * client dma unmap response from the firmware to the host 748 * 749 * @hbm_cmd: bus message command header 750 * @status: command status 751 */ 752 struct hbm_client_dma_response { 753 u8 hbm_cmd; 754 u8 status; 755 } __packed; 756 757 #endif 758