1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Helpers for ACPI table generation 4 * 5 * Based on acpi.c from coreboot 6 * 7 * Copyright 2019 Google LLC 8 * 9 * Copyright (C) 2015, Saket Sinha <saket.sinha89@gmail.com> 10 * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com> 11 */ 12 13 #ifndef __ACPI_TABLE_H__ 14 #define __ACPI_TABLE_H__ 15 16 #include <dm/acpi.h> 17 18 #define RSDP_SIG "RSD PTR " /* RSDP pointer signature */ 19 #define OEM_ID "U-BOOT" /* U-Boot */ 20 #define OEM_TABLE_ID "U-BOOTBL" /* U-Boot Table */ 21 #define ASLC_ID "INTL" /* Intel ASL Compiler */ 22 23 /* TODO(sjg@chromium.org): Figure out how to get compiler revision */ 24 #define ASL_REVISION 0 25 26 #define ACPI_RSDP_REV_ACPI_1_0 0 27 #define ACPI_RSDP_REV_ACPI_2_0 2 28 29 #if !defined(__ACPI__) 30 31 #include <linux/bitops.h> 32 33 struct acpi_ctx; 34 35 /* 36 * RSDP (Root System Description Pointer) 37 * Note: ACPI 1.0 didn't have length, xsdt_address, and ext_checksum 38 */ 39 struct acpi_rsdp { 40 char signature[8]; /* RSDP signature */ 41 u8 checksum; /* Checksum of the first 20 bytes */ 42 char oem_id[6]; /* OEM ID */ 43 u8 revision; /* 0 for ACPI 1.0, others 2 */ 44 u32 rsdt_address; /* Physical address of RSDT (32 bits) */ 45 u32 length; /* Total RSDP length (incl. extended part) */ 46 u64 xsdt_address; /* Physical address of XSDT (64 bits) */ 47 u8 ext_checksum; /* Checksum of the whole table */ 48 u8 reserved[3]; 49 }; 50 51 /* Generic ACPI header, provided by (almost) all tables */ 52 struct __packed acpi_table_header { 53 char signature[ACPI_NAME_LEN]; /* ACPI signature (4 ASCII chars) */ 54 u32 length; /* Table length in bytes (incl. header) */ 55 u8 revision; /* Table version (not ACPI version!) */ 56 volatile u8 checksum; /* To make sum of entire table == 0 */ 57 char oem_id[6]; /* OEM identification */ 58 char oem_table_id[8]; /* OEM table identification */ 59 u32 oem_revision; /* OEM revision number */ 60 char aslc_id[4]; /* ASL compiler vendor ID */ 61 u32 aslc_revision; /* ASL compiler revision number */ 62 }; 63 64 struct acpi_gen_regaddr { 65 u8 space_id; /* Address space ID */ 66 u8 bit_width; /* Register size in bits */ 67 u8 bit_offset; /* Register bit offset */ 68 u8 access_size; /* Access size */ 69 u32 addrl; /* Register address, low 32 bits */ 70 u32 addrh; /* Register address, high 32 bits */ 71 }; 72 73 /* A maximum number of 32 ACPI tables ought to be enough for now */ 74 #define MAX_ACPI_TABLES 32 75 76 /* RSDT (Root System Description Table) */ 77 struct acpi_rsdt { 78 struct acpi_table_header header; 79 u32 entry[MAX_ACPI_TABLES]; 80 }; 81 82 /* XSDT (Extended System Description Table) */ 83 struct acpi_xsdt { 84 struct acpi_table_header header; 85 u64 entry[MAX_ACPI_TABLES]; 86 }; 87 88 /* HPET timers */ 89 struct __packed acpi_hpet { 90 struct acpi_table_header header; 91 u32 id; 92 struct acpi_gen_regaddr addr; 93 u8 number; 94 u16 min_tick; 95 u8 attributes; 96 }; 97 98 struct __packed acpi_tpm2 { 99 struct acpi_table_header header; 100 u16 platform_class; 101 u8 reserved[2]; 102 u64 control_area; 103 u32 start_method; 104 u8 msp[12]; 105 u32 laml; 106 u64 lasa; 107 }; 108 109 struct __packed acpi_tcpa { 110 struct acpi_table_header header; 111 u16 platform_class; 112 u32 laml; 113 u64 lasa; 114 }; 115 116 /* FADT Preferred Power Management Profile */ 117 enum acpi_pm_profile { 118 ACPI_PM_UNSPECIFIED = 0, 119 ACPI_PM_DESKTOP, 120 ACPI_PM_MOBILE, 121 ACPI_PM_WORKSTATION, 122 ACPI_PM_ENTERPRISE_SERVER, 123 ACPI_PM_SOHO_SERVER, 124 ACPI_PM_APPLIANCE_PC, 125 ACPI_PM_PERFORMANCE_SERVER, 126 ACPI_PM_TABLET 127 }; 128 129 /* FADT flags for p_lvl2_lat and p_lvl3_lat */ 130 #define ACPI_FADT_C2_NOT_SUPPORTED 101 131 #define ACPI_FADT_C3_NOT_SUPPORTED 1001 132 133 /* FADT Boot Architecture Flags */ 134 #define ACPI_FADT_LEGACY_FREE 0x00 135 #define ACPI_FADT_LEGACY_DEVICES BIT(0) 136 #define ACPI_FADT_8042 BIT(1) 137 #define ACPI_FADT_VGA_NOT_PRESENT BIT(2) 138 #define ACPI_FADT_MSI_NOT_SUPPORTED BIT(3) 139 #define ACPI_FADT_NO_PCIE_ASPM_CONTROL BIT(4) 140 141 /* FADT Feature Flags */ 142 #define ACPI_FADT_WBINVD BIT(0) 143 #define ACPI_FADT_WBINVD_FLUSH BIT(1) 144 #define ACPI_FADT_C1_SUPPORTED BIT(2) 145 #define ACPI_FADT_C2_MP_SUPPORTED BIT(3) 146 #define ACPI_FADT_POWER_BUTTON BIT(4) 147 #define ACPI_FADT_SLEEP_BUTTON BIT(5) 148 #define ACPI_FADT_FIXED_RTC BIT(6) 149 #define ACPI_FADT_S4_RTC_WAKE BIT(7) 150 #define ACPI_FADT_32BIT_TIMER BIT(8) 151 #define ACPI_FADT_DOCKING_SUPPORTED BIT(9) 152 #define ACPI_FADT_RESET_REGISTER BIT(10) 153 #define ACPI_FADT_SEALED_CASE BIT(11) 154 #define ACPI_FADT_HEADLESS BIT(12) 155 #define ACPI_FADT_SLEEP_TYPE BIT(13) 156 #define ACPI_FADT_PCI_EXPRESS_WAKE BIT(14) 157 #define ACPI_FADT_PLATFORM_CLOCK BIT(15) 158 #define ACPI_FADT_S4_RTC_VALID BIT(16) 159 #define ACPI_FADT_REMOTE_POWER_ON BIT(17) 160 #define ACPI_FADT_APIC_CLUSTER BIT(18) 161 #define ACPI_FADT_APIC_PHYSICAL BIT(19) 162 #define ACPI_FADT_HW_REDUCED_ACPI BIT(20) 163 #define ACPI_FADT_LOW_PWR_IDLE_S0 BIT(21) 164 165 enum acpi_address_space_type { 166 ACPI_ADDRESS_SPACE_MEMORY = 0, /* System memory */ 167 ACPI_ADDRESS_SPACE_IO, /* System I/O */ 168 ACPI_ADDRESS_SPACE_PCI, /* PCI config space */ 169 ACPI_ADDRESS_SPACE_EC, /* Embedded controller */ 170 ACPI_ADDRESS_SPACE_SMBUS, /* SMBus */ 171 ACPI_ADDRESS_SPACE_PCC = 0x0a, /* Platform Comm. Channel */ 172 ACPI_ADDRESS_SPACE_FIXED = 0x7f /* Functional fixed hardware */ 173 }; 174 175 enum acpi_address_space_size { 176 ACPI_ACCESS_SIZE_UNDEFINED = 0, 177 ACPI_ACCESS_SIZE_BYTE_ACCESS, 178 ACPI_ACCESS_SIZE_WORD_ACCESS, 179 ACPI_ACCESS_SIZE_DWORD_ACCESS, 180 ACPI_ACCESS_SIZE_QWORD_ACCESS 181 }; 182 183 /* FADT (Fixed ACPI Description Table) */ 184 struct __packed acpi_fadt { 185 struct acpi_table_header header; 186 u32 firmware_ctrl; 187 u32 dsdt; 188 u8 res1; 189 u8 preferred_pm_profile; 190 u16 sci_int; 191 u32 smi_cmd; 192 u8 acpi_enable; 193 u8 acpi_disable; 194 u8 s4bios_req; 195 u8 pstate_cnt; 196 u32 pm1a_evt_blk; 197 u32 pm1b_evt_blk; 198 u32 pm1a_cnt_blk; 199 u32 pm1b_cnt_blk; 200 u32 pm2_cnt_blk; 201 u32 pm_tmr_blk; 202 u32 gpe0_blk; 203 u32 gpe1_blk; 204 u8 pm1_evt_len; 205 u8 pm1_cnt_len; 206 u8 pm2_cnt_len; 207 u8 pm_tmr_len; 208 u8 gpe0_blk_len; 209 u8 gpe1_blk_len; 210 u8 gpe1_base; 211 u8 cst_cnt; 212 u16 p_lvl2_lat; 213 u16 p_lvl3_lat; 214 u16 flush_size; 215 u16 flush_stride; 216 u8 duty_offset; 217 u8 duty_width; 218 u8 day_alrm; 219 u8 mon_alrm; 220 u8 century; 221 u16 iapc_boot_arch; 222 u8 res2; 223 u32 flags; 224 struct acpi_gen_regaddr reset_reg; 225 u8 reset_value; 226 u16 arm_boot_arch; 227 u8 minor_revision; 228 u32 x_firmware_ctl_l; 229 u32 x_firmware_ctl_h; 230 u32 x_dsdt_l; 231 u32 x_dsdt_h; 232 struct acpi_gen_regaddr x_pm1a_evt_blk; 233 struct acpi_gen_regaddr x_pm1b_evt_blk; 234 struct acpi_gen_regaddr x_pm1a_cnt_blk; 235 struct acpi_gen_regaddr x_pm1b_cnt_blk; 236 struct acpi_gen_regaddr x_pm2_cnt_blk; 237 struct acpi_gen_regaddr x_pm_tmr_blk; 238 struct acpi_gen_regaddr x_gpe0_blk; 239 struct acpi_gen_regaddr x_gpe1_blk; 240 }; 241 242 /* FADT TABLE Revision values - note these do not match the ACPI revision */ 243 #define ACPI_FADT_REV_ACPI_1_0 1 244 #define ACPI_FADT_REV_ACPI_2_0 3 245 #define ACPI_FADT_REV_ACPI_3_0 4 246 #define ACPI_FADT_REV_ACPI_4_0 4 247 #define ACPI_FADT_REV_ACPI_5_0 5 248 #define ACPI_FADT_REV_ACPI_6_0 6 249 250 /* MADT TABLE Revision values - note these do not match the ACPI revision */ 251 #define ACPI_MADT_REV_ACPI_3_0 2 252 #define ACPI_MADT_REV_ACPI_4_0 3 253 #define ACPI_MADT_REV_ACPI_5_0 3 254 #define ACPI_MADT_REV_ACPI_6_0 5 255 256 #define ACPI_MCFG_REV_ACPI_3_0 1 257 258 /* IVRS Revision Field */ 259 #define IVRS_FORMAT_FIXED 0x01 /* Type 10h & 11h only */ 260 #define IVRS_FORMAT_MIXED 0x02 /* Type 10h, 11h, & 40h */ 261 262 /* FACS flags */ 263 #define ACPI_FACS_S4BIOS_F BIT(0) 264 #define ACPI_FACS_64BIT_WAKE_F BIT(1) 265 266 /* FACS (Firmware ACPI Control Structure) */ 267 struct acpi_facs { 268 char signature[ACPI_NAME_LEN]; /* "FACS" */ 269 u32 length; /* Length in bytes (>= 64) */ 270 u32 hardware_signature; /* Hardware signature */ 271 u32 firmware_waking_vector; /* Firmware waking vector */ 272 u32 global_lock; /* Global lock */ 273 u32 flags; /* FACS flags */ 274 u32 x_firmware_waking_vector_l; /* X FW waking vector, low */ 275 u32 x_firmware_waking_vector_h; /* X FW waking vector, high */ 276 u8 version; /* Version 2 */ 277 u8 res1[3]; 278 u32 ospm_flags; /* OSPM enabled flags */ 279 u8 res2[24]; 280 }; 281 282 /* MADT flags */ 283 #define ACPI_MADT_PCAT_COMPAT BIT(0) 284 285 /* MADT (Multiple APIC Description Table) */ 286 struct acpi_madt { 287 struct acpi_table_header header; 288 u32 lapic_addr; /* Local APIC address */ 289 u32 flags; /* Multiple APIC flags */ 290 }; 291 292 /* MADT: APIC Structure Type*/ 293 enum acpi_apic_types { 294 ACPI_APIC_LAPIC = 0, /* Processor local APIC */ 295 ACPI_APIC_IOAPIC, /* I/O APIC */ 296 ACPI_APIC_IRQ_SRC_OVERRIDE, /* Interrupt source override */ 297 ACPI_APIC_NMI_SRC, /* NMI source */ 298 ACPI_APIC_LAPIC_NMI, /* Local APIC NMI */ 299 ACPI_APIC_LAPIC_ADDR_OVERRIDE, /* Local APIC address override */ 300 ACPI_APIC_IOSAPIC, /* I/O SAPIC */ 301 ACPI_APIC_LSAPIC, /* Local SAPIC */ 302 ACPI_APIC_PLATFORM_IRQ_SRC, /* Platform interrupt sources */ 303 ACPI_APIC_LX2APIC, /* Processor local x2APIC */ 304 ACPI_APIC_LX2APIC_NMI, /* Local x2APIC NMI */ 305 }; 306 307 /* MADT: Processor Local APIC Structure */ 308 309 #define LOCAL_APIC_FLAG_ENABLED BIT(0) 310 311 struct acpi_madt_lapic { 312 u8 type; /* Type (0) */ 313 u8 length; /* Length in bytes (8) */ 314 u8 processor_id; /* ACPI processor ID */ 315 u8 apic_id; /* Local APIC ID */ 316 u32 flags; /* Local APIC flags */ 317 }; 318 319 /* MADT: I/O APIC Structure */ 320 struct acpi_madt_ioapic { 321 u8 type; /* Type (1) */ 322 u8 length; /* Length in bytes (12) */ 323 u8 ioapic_id; /* I/O APIC ID */ 324 u8 reserved; 325 u32 ioapic_addr; /* I/O APIC address */ 326 u32 gsi_base; /* Global system interrupt base */ 327 }; 328 329 /* MADT: Interrupt Source Override Structure */ 330 struct __packed acpi_madt_irqoverride { 331 u8 type; /* Type (2) */ 332 u8 length; /* Length in bytes (10) */ 333 u8 bus; /* ISA (0) */ 334 u8 source; /* Bus-relative int. source (IRQ) */ 335 u32 gsirq; /* Global system interrupt */ 336 u16 flags; /* MPS INTI flags */ 337 }; 338 339 /* MADT: Local APIC NMI Structure */ 340 struct __packed acpi_madt_lapic_nmi { 341 u8 type; /* Type (4) */ 342 u8 length; /* Length in bytes (6) */ 343 u8 processor_id; /* ACPI processor ID */ 344 u16 flags; /* MPS INTI flags */ 345 u8 lint; /* Local APIC LINT# */ 346 }; 347 348 /* MCFG (PCI Express MMIO config space BAR description table) */ 349 struct acpi_mcfg { 350 struct acpi_table_header header; 351 u8 reserved[8]; 352 }; 353 354 struct acpi_mcfg_mmconfig { 355 u32 base_address_l; 356 u32 base_address_h; 357 u16 pci_segment_group_number; 358 u8 start_bus_number; 359 u8 end_bus_number; 360 u8 reserved[4]; 361 }; 362 363 /* PM1_CNT bit defines */ 364 #define PM1_CNT_SCI_EN BIT(0) 365 366 /* ACPI global NVS structure */ 367 struct acpi_global_nvs; 368 369 /* CSRT (Core System Resource Table) */ 370 struct acpi_csrt { 371 struct acpi_table_header header; 372 }; 373 374 struct acpi_csrt_group { 375 u32 length; 376 u32 vendor_id; 377 u32 subvendor_id; 378 u16 device_id; 379 u16 subdevice_id; 380 u16 revision; 381 u16 reserved; 382 u32 shared_info_length; 383 }; 384 385 struct acpi_csrt_shared_info { 386 u16 major_version; 387 u16 minor_version; 388 u32 mmio_base_low; 389 u32 mmio_base_high; 390 u32 gsi_interrupt; 391 u8 interrupt_polarity; 392 u8 interrupt_mode; 393 u8 num_channels; 394 u8 dma_address_width; 395 u16 base_request_line; 396 u16 num_handshake_signals; 397 u32 max_block_size; 398 }; 399 400 /* Port types for ACPI _UPC object */ 401 enum acpi_upc_type { 402 UPC_TYPE_A, 403 UPC_TYPE_MINI_AB, 404 UPC_TYPE_EXPRESSCARD, 405 UPC_TYPE_USB3_A, 406 UPC_TYPE_USB3_B, 407 UPC_TYPE_USB3_MICRO_B, 408 UPC_TYPE_USB3_MICRO_AB, 409 UPC_TYPE_USB3_POWER_B, 410 UPC_TYPE_C_USB2_ONLY, 411 UPC_TYPE_C_USB2_SS_SWITCH, 412 UPC_TYPE_C_USB2_SS, 413 UPC_TYPE_PROPRIETARY = 0xff, 414 /* 415 * The following types are not directly defined in the ACPI 416 * spec but are used by coreboot to identify a USB device type. 417 */ 418 UPC_TYPE_INTERNAL = 0xff, 419 UPC_TYPE_UNUSED, 420 UPC_TYPE_HUB 421 }; 422 423 enum dev_scope_type { 424 SCOPE_PCI_ENDPOINT = 1, 425 SCOPE_PCI_SUB = 2, 426 SCOPE_IOAPIC = 3, 427 SCOPE_MSI_HPET = 4, 428 SCOPE_ACPI_NAMESPACE_DEVICE = 5 429 }; 430 431 struct __packed dev_scope { 432 u8 type; 433 u8 length; 434 u8 reserved[2]; 435 u8 enumeration; 436 u8 start_bus; 437 struct { 438 u8 dev; 439 u8 fn; 440 } __packed path[0]; 441 }; 442 443 enum dmar_type { 444 DMAR_DRHD = 0, 445 DMAR_RMRR = 1, 446 DMAR_ATSR = 2, 447 DMAR_RHSA = 3, 448 DMAR_ANDD = 4 449 }; 450 451 enum { 452 DRHD_INCLUDE_PCI_ALL = BIT(0) 453 }; 454 455 enum dmar_flags { 456 DMAR_INTR_REMAP = BIT(0), 457 DMAR_X2APIC_OPT_OUT = BIT(1), 458 DMAR_CTRL_PLATFORM_OPT_IN_FLAG = BIT(2), 459 }; 460 461 struct dmar_entry { 462 u16 type; 463 u16 length; 464 u8 flags; 465 u8 reserved; 466 u16 segment; 467 u64 bar; 468 }; 469 470 struct dmar_rmrr_entry { 471 u16 type; 472 u16 length; 473 u16 reserved; 474 u16 segment; 475 u64 bar; 476 u64 limit; 477 }; 478 479 /* DMAR (DMA Remapping Reporting Structure) */ 480 struct __packed acpi_dmar { 481 struct acpi_table_header header; 482 u8 host_address_width; 483 u8 flags; 484 u8 reserved[10]; 485 struct dmar_entry structure[0]; 486 }; 487 488 /* DBG2 definitions are partially used for SPCR interface_type */ 489 490 /* Types for port_type field */ 491 492 #define ACPI_DBG2_SERIAL_PORT 0x8000 493 #define ACPI_DBG2_1394_PORT 0x8001 494 #define ACPI_DBG2_USB_PORT 0x8002 495 #define ACPI_DBG2_NET_PORT 0x8003 496 497 /* Subtypes for port_subtype field */ 498 499 #define ACPI_DBG2_16550_COMPATIBLE 0x0000 500 #define ACPI_DBG2_16550_SUBSET 0x0001 501 #define ACPI_DBG2_ARM_PL011 0x0003 502 #define ACPI_DBG2_ARM_SBSA_32BIT 0x000D 503 #define ACPI_DBG2_ARM_SBSA_GENERIC 0x000E 504 #define ACPI_DBG2_ARM_DCC 0x000F 505 #define ACPI_DBG2_BCM2835 0x0010 506 507 #define ACPI_DBG2_1394_STANDARD 0x0000 508 509 #define ACPI_DBG2_USB_XHCI 0x0000 510 #define ACPI_DBG2_USB_EHCI 0x0001 511 512 #define ACPI_DBG2_UNKNOWN 0x00FF 513 514 /* DBG2: Microsoft Debug Port Table 2 header */ 515 struct __packed acpi_dbg2_header { 516 struct acpi_table_header header; 517 u32 devices_offset; 518 u32 devices_count; 519 }; 520 521 /* DBG2: Microsoft Debug Port Table 2 device entry */ 522 struct __packed acpi_dbg2_device { 523 u8 revision; 524 u16 length; 525 u8 address_count; 526 u16 namespace_string_length; 527 u16 namespace_string_offset; 528 u16 oem_data_length; 529 u16 oem_data_offset; 530 u16 port_type; 531 u16 port_subtype; 532 u8 reserved[2]; 533 u16 base_address_offset; 534 u16 address_size_offset; 535 }; 536 537 /* SPCR (Serial Port Console Redirection table) */ 538 struct __packed acpi_spcr { 539 struct acpi_table_header header; 540 u8 interface_type; 541 u8 reserved[3]; 542 struct acpi_gen_regaddr serial_port; 543 u8 interrupt_type; 544 u8 pc_interrupt; 545 u32 interrupt; /* Global system interrupt */ 546 u8 baud_rate; 547 u8 parity; 548 u8 stop_bits; 549 u8 flow_control; 550 u8 terminal_type; 551 u8 reserved1; 552 u16 pci_device_id; /* Must be 0xffff if not PCI device */ 553 u16 pci_vendor_id; /* Must be 0xffff if not PCI device */ 554 u8 pci_bus; 555 u8 pci_device; 556 u8 pci_function; 557 u32 pci_flags; 558 u8 pci_segment; 559 u32 reserved2; 560 }; 561 562 /* Tables defined/reserved by ACPI and generated by U-Boot */ 563 enum acpi_tables { 564 ACPITAB_BERT, 565 ACPITAB_DBG2, 566 ACPITAB_DMAR, 567 ACPITAB_DSDT, 568 ACPITAB_ECDT, 569 ACPITAB_FACS, 570 ACPITAB_FADT, 571 ACPITAB_HEST, 572 ACPITAB_HPET, 573 ACPITAB_IVRS, 574 ACPITAB_MADT, 575 ACPITAB_MCFG, 576 ACPITAB_NHLT, 577 ACPITAB_RSDP, 578 ACPITAB_RSDT, 579 ACPITAB_SLIT, 580 ACPITAB_SPCR, 581 ACPITAB_SPMI, 582 ACPITAB_SRAT, 583 ACPITAB_SSDT, 584 ACPITAB_TCPA, 585 ACPITAB_TPM2, 586 ACPITAB_VFCT, 587 ACPITAB_XSDT, 588 589 ACPITAB_COUNT, 590 }; 591 592 /** 593 * acpi_get_table_revision() - Get the revision number generated for a table 594 * 595 * This keeps the version-number information in one place 596 * 597 * @table: ACPI table to check 598 * @return version number that U-Boot generates 599 */ 600 int acpi_get_table_revision(enum acpi_tables table); 601 602 /** 603 * acpi_create_dmar() - Create a DMA Remapping Reporting (DMAR) table 604 * 605 * @dmar: Place to put the table 606 * @flags: DMAR flags to use 607 * @return 0 if OK, -ve on error 608 */ 609 int acpi_create_dmar(struct acpi_dmar *dmar, enum dmar_flags flags); 610 611 /** 612 * acpi_create_dbg2() - Create a DBG2 table 613 * 614 * This table describes how to access the debug UART 615 * 616 * @dbg2: Place to put information 617 * @port_type: Serial port type (see ACPI_DBG2_...) 618 * @port_subtype: Serial port sub-type (see ACPI_DBG2_...) 619 * @address: ACPI address of port 620 * @address_size: Size of address space 621 * @device_path: Path of device (created using acpi_device_path()) 622 */ 623 void acpi_create_dbg2(struct acpi_dbg2_header *dbg2, 624 int port_type, int port_subtype, 625 struct acpi_gen_regaddr *address, uint32_t address_size, 626 const char *device_path); 627 628 /** 629 * acpi_fill_header() - Set up a new table header 630 * 631 * This sets all fields except length, revision, checksum and aslc_revision 632 * 633 * @header: ACPI header to update 634 * @signature: Table signature to use (4 characters) 635 */ 636 void acpi_fill_header(struct acpi_table_header *header, char *signature); 637 638 /** 639 * acpi_align() - Align the ACPI output pointer to a 16-byte boundary 640 * 641 * @ctx: ACPI context 642 */ 643 void acpi_align(struct acpi_ctx *ctx); 644 645 /** 646 * acpi_align64() - Align the ACPI output pointer to a 64-byte boundary 647 * 648 * @ctx: ACPI context 649 */ 650 void acpi_align64(struct acpi_ctx *ctx); 651 652 /** 653 * acpi_inc() - Increment the ACPI output pointer by a bit 654 * 655 * The pointer is NOT aligned afterwards. 656 * 657 * @ctx: ACPI context 658 * @amount: Amount to increment by 659 */ 660 void acpi_inc(struct acpi_ctx *ctx, uint amount); 661 662 /** 663 * acpi_inc_align() - Increment the ACPI output pointer by a bit and align 664 * 665 * The pointer is aligned afterwards to a 16-byte boundary 666 * 667 * @ctx: ACPI context 668 * @amount: Amount to increment by 669 */ 670 void acpi_inc_align(struct acpi_ctx *ctx, uint amount); 671 672 /** 673 * acpi_add_table() - Add a new table to the RSDP and XSDT 674 * 675 * @ctx: ACPI context 676 * @table: Table to add 677 * @return 0 if OK, -E2BIG if too many tables 678 */ 679 int acpi_add_table(struct acpi_ctx *ctx, void *table); 680 681 /** 682 * acpi_setup_base_tables() - Set up context along with RSDP, RSDT and XSDT 683 * 684 * Set up the context with the given start position. Some basic tables are 685 * always needed, so set them up as well. 686 * 687 * @ctx: Context to set up 688 */ 689 void acpi_setup_base_tables(struct acpi_ctx *ctx, void *start); 690 691 /** 692 * acpi_write_rsdp() - Write out an RSDP indicating where the ACPI tables are 693 * 694 * @rsdp: Address to write RSDP 695 * @rsdt: Address of RSDT 696 * @xsdt: Address of XSDT 697 */ 698 void acpi_write_rsdp(struct acpi_rsdp *rsdp, struct acpi_rsdt *rsdt, 699 struct acpi_xsdt *xsdt); 700 701 #endif /* !__ACPI__*/ 702 703 #include <asm/acpi_table.h> 704 705 #endif /* __ACPI_TABLE_H__ */ 706