uboot/include/acpi/acpi_table.h
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   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
  33struct 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 */
  39struct 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 */
  52struct __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
  64struct 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) */
  77struct acpi_rsdt {
  78        struct acpi_table_header header;
  79        u32 entry[MAX_ACPI_TABLES];
  80};
  81
  82/* XSDT (Extended System Description Table) */
  83struct acpi_xsdt {
  84        struct acpi_table_header header;
  85        u64 entry[MAX_ACPI_TABLES];
  86};
  87
  88/* HPET timers */
  89struct __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
  98struct __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
 109struct __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 */
 117enum 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
 165enum 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
 175enum 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) */
 184struct __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) */
 267struct 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) */
 286struct 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*/
 293enum 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
 311struct 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 */
 320struct 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 */
 330struct __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 */
 340struct __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) */
 349struct acpi_mcfg {
 350        struct acpi_table_header header;
 351        u8 reserved[8];
 352};
 353
 354struct 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 */
 367struct acpi_global_nvs;
 368
 369/* CSRT (Core System Resource Table) */
 370struct acpi_csrt {
 371        struct acpi_table_header header;
 372};
 373
 374struct 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
 385struct 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 */
 401enum 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
 423enum 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
 431struct __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
 443enum dmar_type {
 444        DMAR_DRHD = 0,
 445        DMAR_RMRR = 1,
 446        DMAR_ATSR = 2,
 447        DMAR_RHSA = 3,
 448        DMAR_ANDD = 4
 449};
 450
 451enum {
 452        DRHD_INCLUDE_PCI_ALL = BIT(0)
 453};
 454
 455enum 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
 461struct dmar_entry {
 462        u16 type;
 463        u16 length;
 464        u8 flags;
 465        u8 reserved;
 466        u16 segment;
 467        u64 bar;
 468};
 469
 470struct 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) */
 480struct __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 */
 515struct __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 */
 522struct __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) */
 538struct __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 */
 563enum 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 */
 600int 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 */
 609int 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 */
 623void 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 */
 636void 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 */
 643void 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 */
 650void 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 */
 660void 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 */
 670void 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 */
 679int 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 */
 689void 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 */
 698void 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