include/acpi/acpi_table.h

   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 #endif /* !__ACPI__*/
 692
 693 #include <asm/acpi_table.h>
 694
 695 #endif /* __ACPI_TABLE_H__ */