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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * Helpers for ACPI table generation
- *
- * Based on acpi.c from coreboot
- *
- * Copyright 2019 Google LLC
- *
- * Copyright (C) 2015, Saket Sinha <saket.sinha89@gmail.com>
- * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
- */
- #ifndef __ACPI_TABLE_H__
- #define __ACPI_TABLE_H__
- #include <dm/acpi.h>
- #define RSDP_SIG "RSD PTR " /* RSDP pointer signature */
- #define OEM_ID "U-BOOT" /* U-Boot */
- #define OEM_TABLE_ID "U-BOOTBL" /* U-Boot Table */
- #define ASLC_ID "INTL" /* Intel ASL Compiler */
- /* TODO(sjg@chromium.org): Figure out how to get compiler revision */
- #define ASL_REVISION 0
- #define ACPI_RSDP_REV_ACPI_1_0 0
- #define ACPI_RSDP_REV_ACPI_2_0 2
- #if !defined(__ACPI__)
- #include <linux/bitops.h>
- struct acpi_ctx;
- /*
- * RSDP (Root System Description Pointer)
- * Note: ACPI 1.0 didn't have length, xsdt_address, and ext_checksum
- */
- struct acpi_rsdp {
- char signature[8]; /* RSDP signature */
- u8 checksum; /* Checksum of the first 20 bytes */
- char oem_id[6]; /* OEM ID */
- u8 revision; /* 0 for ACPI 1.0, others 2 */
- u32 rsdt_address; /* Physical address of RSDT (32 bits) */
- u32 length; /* Total RSDP length (incl. extended part) */
- u64 xsdt_address; /* Physical address of XSDT (64 bits) */
- u8 ext_checksum; /* Checksum of the whole table */
- u8 reserved[3];
- };
- /* Generic ACPI header, provided by (almost) all tables */
- struct __packed acpi_table_header {
- char signature[ACPI_NAME_LEN]; /* ACPI signature (4 ASCII chars) */
- u32 length; /* Table length in bytes (incl. header) */
- u8 revision; /* Table version (not ACPI version!) */
- volatile u8 checksum; /* To make sum of entire table == 0 */
- char oem_id[6]; /* OEM identification */
- char oem_table_id[8]; /* OEM table identification */
- u32 oem_revision; /* OEM revision number */
- char aslc_id[4]; /* ASL compiler vendor ID */
- u32 aslc_revision; /* ASL compiler revision number */
- };
- struct acpi_gen_regaddr {
- u8 space_id; /* Address space ID */
- u8 bit_width; /* Register size in bits */
- u8 bit_offset; /* Register bit offset */
- u8 access_size; /* Access size */
- u32 addrl; /* Register address, low 32 bits */
- u32 addrh; /* Register address, high 32 bits */
- };
- /* A maximum number of 32 ACPI tables ought to be enough for now */
- #define MAX_ACPI_TABLES 32
- /* RSDT (Root System Description Table) */
- struct acpi_rsdt {
- struct acpi_table_header header;
- u32 entry[MAX_ACPI_TABLES];
- };
- /* XSDT (Extended System Description Table) */
- struct acpi_xsdt {
- struct acpi_table_header header;
- u64 entry[MAX_ACPI_TABLES];
- };
- /* HPET timers */
- struct __packed acpi_hpet {
- struct acpi_table_header header;
- u32 id;
- struct acpi_gen_regaddr addr;
- u8 number;
- u16 min_tick;
- u8 attributes;
- };
- struct __packed acpi_tpm2 {
- struct acpi_table_header header;
- u16 platform_class;
- u8 reserved[2];
- u64 control_area;
- u32 start_method;
- u8 msp[12];
- u32 laml;
- u64 lasa;
- };
- struct __packed acpi_tcpa {
- struct acpi_table_header header;
- u16 platform_class;
- u32 laml;
- u64 lasa;
- };
- /* FADT Preferred Power Management Profile */
- enum acpi_pm_profile {
- ACPI_PM_UNSPECIFIED = 0,
- ACPI_PM_DESKTOP,
- ACPI_PM_MOBILE,
- ACPI_PM_WORKSTATION,
- ACPI_PM_ENTERPRISE_SERVER,
- ACPI_PM_SOHO_SERVER,
- ACPI_PM_APPLIANCE_PC,
- ACPI_PM_PERFORMANCE_SERVER,
- ACPI_PM_TABLET
- };
- /* FADT flags for p_lvl2_lat and p_lvl3_lat */
- #define ACPI_FADT_C2_NOT_SUPPORTED 101
- #define ACPI_FADT_C3_NOT_SUPPORTED 1001
- /* FADT Boot Architecture Flags */
- #define ACPI_FADT_LEGACY_FREE 0x00
- #define ACPI_FADT_LEGACY_DEVICES BIT(0)
- #define ACPI_FADT_8042 BIT(1)
- #define ACPI_FADT_VGA_NOT_PRESENT BIT(2)
- #define ACPI_FADT_MSI_NOT_SUPPORTED BIT(3)
- #define ACPI_FADT_NO_PCIE_ASPM_CONTROL BIT(4)
- /* FADT Feature Flags */
- #define ACPI_FADT_WBINVD BIT(0)
- #define ACPI_FADT_WBINVD_FLUSH BIT(1)
- #define ACPI_FADT_C1_SUPPORTED BIT(2)
- #define ACPI_FADT_C2_MP_SUPPORTED BIT(3)
- #define ACPI_FADT_POWER_BUTTON BIT(4)
- #define ACPI_FADT_SLEEP_BUTTON BIT(5)
- #define ACPI_FADT_FIXED_RTC BIT(6)
- #define ACPI_FADT_S4_RTC_WAKE BIT(7)
- #define ACPI_FADT_32BIT_TIMER BIT(8)
- #define ACPI_FADT_DOCKING_SUPPORTED BIT(9)
- #define ACPI_FADT_RESET_REGISTER BIT(10)
- #define ACPI_FADT_SEALED_CASE BIT(11)
- #define ACPI_FADT_HEADLESS BIT(12)
- #define ACPI_FADT_SLEEP_TYPE BIT(13)
- #define ACPI_FADT_PCI_EXPRESS_WAKE BIT(14)
- #define ACPI_FADT_PLATFORM_CLOCK BIT(15)
- #define ACPI_FADT_S4_RTC_VALID BIT(16)
- #define ACPI_FADT_REMOTE_POWER_ON BIT(17)
- #define ACPI_FADT_APIC_CLUSTER BIT(18)
- #define ACPI_FADT_APIC_PHYSICAL BIT(19)
- #define ACPI_FADT_HW_REDUCED_ACPI BIT(20)
- #define ACPI_FADT_LOW_PWR_IDLE_S0 BIT(21)
- enum acpi_address_space_type {
- ACPI_ADDRESS_SPACE_MEMORY = 0, /* System memory */
- ACPI_ADDRESS_SPACE_IO, /* System I/O */
- ACPI_ADDRESS_SPACE_PCI, /* PCI config space */
- ACPI_ADDRESS_SPACE_EC, /* Embedded controller */
- ACPI_ADDRESS_SPACE_SMBUS, /* SMBus */
- ACPI_ADDRESS_SPACE_PCC = 0x0a, /* Platform Comm. Channel */
- ACPI_ADDRESS_SPACE_FIXED = 0x7f /* Functional fixed hardware */
- };
- enum acpi_address_space_size {
- ACPI_ACCESS_SIZE_UNDEFINED = 0,
- ACPI_ACCESS_SIZE_BYTE_ACCESS,
- ACPI_ACCESS_SIZE_WORD_ACCESS,
- ACPI_ACCESS_SIZE_DWORD_ACCESS,
- ACPI_ACCESS_SIZE_QWORD_ACCESS
- };
- /* FADT (Fixed ACPI Description Table) */
- struct __packed acpi_fadt {
- struct acpi_table_header header;
- u32 firmware_ctrl;
- u32 dsdt;
- u8 res1;
- u8 preferred_pm_profile;
- u16 sci_int;
- u32 smi_cmd;
- u8 acpi_enable;
- u8 acpi_disable;
- u8 s4bios_req;
- u8 pstate_cnt;
- u32 pm1a_evt_blk;
- u32 pm1b_evt_blk;
- u32 pm1a_cnt_blk;
- u32 pm1b_cnt_blk;
- u32 pm2_cnt_blk;
- u32 pm_tmr_blk;
- u32 gpe0_blk;
- u32 gpe1_blk;
- u8 pm1_evt_len;
- u8 pm1_cnt_len;
- u8 pm2_cnt_len;
- u8 pm_tmr_len;
- u8 gpe0_blk_len;
- u8 gpe1_blk_len;
- u8 gpe1_base;
- u8 cst_cnt;
- u16 p_lvl2_lat;
- u16 p_lvl3_lat;
- u16 flush_size;
- u16 flush_stride;
- u8 duty_offset;
- u8 duty_width;
- u8 day_alrm;
- u8 mon_alrm;
- u8 century;
- u16 iapc_boot_arch;
- u8 res2;
- u32 flags;
- struct acpi_gen_regaddr reset_reg;
- u8 reset_value;
- u16 arm_boot_arch;
- u8 minor_revision;
- u32 x_firmware_ctl_l;
- u32 x_firmware_ctl_h;
- u32 x_dsdt_l;
- u32 x_dsdt_h;
- struct acpi_gen_regaddr x_pm1a_evt_blk;
- struct acpi_gen_regaddr x_pm1b_evt_blk;
- struct acpi_gen_regaddr x_pm1a_cnt_blk;
- struct acpi_gen_regaddr x_pm1b_cnt_blk;
- struct acpi_gen_regaddr x_pm2_cnt_blk;
- struct acpi_gen_regaddr x_pm_tmr_blk;
- struct acpi_gen_regaddr x_gpe0_blk;
- struct acpi_gen_regaddr x_gpe1_blk;
- };
- /* FADT TABLE Revision values - note these do not match the ACPI revision */
- #define ACPI_FADT_REV_ACPI_1_0 1
- #define ACPI_FADT_REV_ACPI_2_0 3
- #define ACPI_FADT_REV_ACPI_3_0 4
- #define ACPI_FADT_REV_ACPI_4_0 4
- #define ACPI_FADT_REV_ACPI_5_0 5
- #define ACPI_FADT_REV_ACPI_6_0 6
- /* MADT TABLE Revision values - note these do not match the ACPI revision */
- #define ACPI_MADT_REV_ACPI_3_0 2
- #define ACPI_MADT_REV_ACPI_4_0 3
- #define ACPI_MADT_REV_ACPI_5_0 3
- #define ACPI_MADT_REV_ACPI_6_0 5
- #define ACPI_MCFG_REV_ACPI_3_0 1
- /* IVRS Revision Field */
- #define IVRS_FORMAT_FIXED 0x01 /* Type 10h & 11h only */
- #define IVRS_FORMAT_MIXED 0x02 /* Type 10h, 11h, & 40h */
- /* FACS flags */
- #define ACPI_FACS_S4BIOS_F BIT(0)
- #define ACPI_FACS_64BIT_WAKE_F BIT(1)
- /* FACS (Firmware ACPI Control Structure) */
- struct acpi_facs {
- char signature[ACPI_NAME_LEN]; /* "FACS" */
- u32 length; /* Length in bytes (>= 64) */
- u32 hardware_signature; /* Hardware signature */
- u32 firmware_waking_vector; /* Firmware waking vector */
- u32 global_lock; /* Global lock */
- u32 flags; /* FACS flags */
- u32 x_firmware_waking_vector_l; /* X FW waking vector, low */
- u32 x_firmware_waking_vector_h; /* X FW waking vector, high */
- u8 version; /* Version 2 */
- u8 res1[3];
- u32 ospm_flags; /* OSPM enabled flags */
- u8 res2[24];
- };
- /* MADT flags */
- #define ACPI_MADT_PCAT_COMPAT BIT(0)
- /* MADT (Multiple APIC Description Table) */
- struct acpi_madt {
- struct acpi_table_header header;
- u32 lapic_addr; /* Local APIC address */
- u32 flags; /* Multiple APIC flags */
- };
- /* MADT: APIC Structure Type*/
- enum acpi_apic_types {
- ACPI_APIC_LAPIC = 0, /* Processor local APIC */
- ACPI_APIC_IOAPIC, /* I/O APIC */
- ACPI_APIC_IRQ_SRC_OVERRIDE, /* Interrupt source override */
- ACPI_APIC_NMI_SRC, /* NMI source */
- ACPI_APIC_LAPIC_NMI, /* Local APIC NMI */
- ACPI_APIC_LAPIC_ADDR_OVERRIDE, /* Local APIC address override */
- ACPI_APIC_IOSAPIC, /* I/O SAPIC */
- ACPI_APIC_LSAPIC, /* Local SAPIC */
- ACPI_APIC_PLATFORM_IRQ_SRC, /* Platform interrupt sources */
- ACPI_APIC_LX2APIC, /* Processor local x2APIC */
- ACPI_APIC_LX2APIC_NMI, /* Local x2APIC NMI */
- };
- /* MADT: Processor Local APIC Structure */
- #define LOCAL_APIC_FLAG_ENABLED BIT(0)
- struct acpi_madt_lapic {
- u8 type; /* Type (0) */
- u8 length; /* Length in bytes (8) */
- u8 processor_id; /* ACPI processor ID */
- u8 apic_id; /* Local APIC ID */
- u32 flags; /* Local APIC flags */
- };
- /* MADT: I/O APIC Structure */
- struct acpi_madt_ioapic {
- u8 type; /* Type (1) */
- u8 length; /* Length in bytes (12) */
- u8 ioapic_id; /* I/O APIC ID */
- u8 reserved;
- u32 ioapic_addr; /* I/O APIC address */
- u32 gsi_base; /* Global system interrupt base */
- };
- /* MADT: Interrupt Source Override Structure */
- struct __packed acpi_madt_irqoverride {
- u8 type; /* Type (2) */
- u8 length; /* Length in bytes (10) */
- u8 bus; /* ISA (0) */
- u8 source; /* Bus-relative int. source (IRQ) */
- u32 gsirq; /* Global system interrupt */
- u16 flags; /* MPS INTI flags */
- };
- /* MADT: Local APIC NMI Structure */
- struct __packed acpi_madt_lapic_nmi {
- u8 type; /* Type (4) */
- u8 length; /* Length in bytes (6) */
- u8 processor_id; /* ACPI processor ID */
- u16 flags; /* MPS INTI flags */
- u8 lint; /* Local APIC LINT# */
- };
- /* MCFG (PCI Express MMIO config space BAR description table) */
- struct acpi_mcfg {
- struct acpi_table_header header;
- u8 reserved[8];
- };
- struct acpi_mcfg_mmconfig {
- u32 base_address_l;
- u32 base_address_h;
- u16 pci_segment_group_number;
- u8 start_bus_number;
- u8 end_bus_number;
- u8 reserved[4];
- };
- /* PM1_CNT bit defines */
- #define PM1_CNT_SCI_EN BIT(0)
- /* ACPI global NVS structure */
- struct acpi_global_nvs;
- /* CSRT (Core System Resource Table) */
- struct acpi_csrt {
- struct acpi_table_header header;
- };
- struct acpi_csrt_group {
- u32 length;
- u32 vendor_id;
- u32 subvendor_id;
- u16 device_id;
- u16 subdevice_id;
- u16 revision;
- u16 reserved;
- u32 shared_info_length;
- };
- struct acpi_csrt_shared_info {
- u16 major_version;
- u16 minor_version;
- u32 mmio_base_low;
- u32 mmio_base_high;
- u32 gsi_interrupt;
- u8 interrupt_polarity;
- u8 interrupt_mode;
- u8 num_channels;
- u8 dma_address_width;
- u16 base_request_line;
- u16 num_handshake_signals;
- u32 max_block_size;
- };
- /* Port types for ACPI _UPC object */
- enum acpi_upc_type {
- UPC_TYPE_A,
- UPC_TYPE_MINI_AB,
- UPC_TYPE_EXPRESSCARD,
- UPC_TYPE_USB3_A,
- UPC_TYPE_USB3_B,
- UPC_TYPE_USB3_MICRO_B,
- UPC_TYPE_USB3_MICRO_AB,
- UPC_TYPE_USB3_POWER_B,
- UPC_TYPE_C_USB2_ONLY,
- UPC_TYPE_C_USB2_SS_SWITCH,
- UPC_TYPE_C_USB2_SS,
- UPC_TYPE_PROPRIETARY = 0xff,
- /*
- * The following types are not directly defined in the ACPI
- * spec but are used by coreboot to identify a USB device type.
- */
- UPC_TYPE_INTERNAL = 0xff,
- UPC_TYPE_UNUSED,
- UPC_TYPE_HUB
- };
- enum dev_scope_type {
- SCOPE_PCI_ENDPOINT = 1,
- SCOPE_PCI_SUB = 2,
- SCOPE_IOAPIC = 3,
- SCOPE_MSI_HPET = 4,
- SCOPE_ACPI_NAMESPACE_DEVICE = 5
- };
- struct __packed dev_scope {
- u8 type;
- u8 length;
- u8 reserved[2];
- u8 enumeration;
- u8 start_bus;
- struct {
- u8 dev;
- u8 fn;
- } __packed path[0];
- };
- enum dmar_type {
- DMAR_DRHD = 0,
- DMAR_RMRR = 1,
- DMAR_ATSR = 2,
- DMAR_RHSA = 3,
- DMAR_ANDD = 4
- };
- enum {
- DRHD_INCLUDE_PCI_ALL = BIT(0)
- };
- enum dmar_flags {
- DMAR_INTR_REMAP = BIT(0),
- DMAR_X2APIC_OPT_OUT = BIT(1),
- DMAR_CTRL_PLATFORM_OPT_IN_FLAG = BIT(2),
- };
- struct dmar_entry {
- u16 type;
- u16 length;
- u8 flags;
- u8 reserved;
- u16 segment;
- u64 bar;
- };
- struct dmar_rmrr_entry {
- u16 type;
- u16 length;
- u16 reserved;
- u16 segment;
- u64 bar;
- u64 limit;
- };
- /* DMAR (DMA Remapping Reporting Structure) */
- struct __packed acpi_dmar {
- struct acpi_table_header header;
- u8 host_address_width;
- u8 flags;
- u8 reserved[10];
- struct dmar_entry structure[0];
- };
- /* DBG2 definitions are partially used for SPCR interface_type */
- /* Types for port_type field */
- #define ACPI_DBG2_SERIAL_PORT 0x8000
- #define ACPI_DBG2_1394_PORT 0x8001
- #define ACPI_DBG2_USB_PORT 0x8002
- #define ACPI_DBG2_NET_PORT 0x8003
- /* Subtypes for port_subtype field */
- #define ACPI_DBG2_16550_COMPATIBLE 0x0000
- #define ACPI_DBG2_16550_SUBSET 0x0001
- #define ACPI_DBG2_ARM_PL011 0x0003
- #define ACPI_DBG2_ARM_SBSA_32BIT 0x000D
- #define ACPI_DBG2_ARM_SBSA_GENERIC 0x000E
- #define ACPI_DBG2_ARM_DCC 0x000F
- #define ACPI_DBG2_BCM2835 0x0010
- #define ACPI_DBG2_1394_STANDARD 0x0000
- #define ACPI_DBG2_USB_XHCI 0x0000
- #define ACPI_DBG2_USB_EHCI 0x0001
- #define ACPI_DBG2_UNKNOWN 0x00FF
- /* DBG2: Microsoft Debug Port Table 2 header */
- struct __packed acpi_dbg2_header {
- struct acpi_table_header header;
- u32 devices_offset;
- u32 devices_count;
- };
- /* DBG2: Microsoft Debug Port Table 2 device entry */
- struct __packed acpi_dbg2_device {
- u8 revision;
- u16 length;
- u8 address_count;
- u16 namespace_string_length;
- u16 namespace_string_offset;
- u16 oem_data_length;
- u16 oem_data_offset;
- u16 port_type;
- u16 port_subtype;
- u8 reserved[2];
- u16 base_address_offset;
- u16 address_size_offset;
- };
- /* SPCR (Serial Port Console Redirection table) */
- struct __packed acpi_spcr {
- struct acpi_table_header header;
- u8 interface_type;
- u8 reserved[3];
- struct acpi_gen_regaddr serial_port;
- u8 interrupt_type;
- u8 pc_interrupt;
- u32 interrupt; /* Global system interrupt */
- u8 baud_rate;
- u8 parity;
- u8 stop_bits;
- u8 flow_control;
- u8 terminal_type;
- u8 reserved1;
- u16 pci_device_id; /* Must be 0xffff if not PCI device */
- u16 pci_vendor_id; /* Must be 0xffff if not PCI device */
- u8 pci_bus;
- u8 pci_device;
- u8 pci_function;
- u32 pci_flags;
- u8 pci_segment;
- u32 reserved2;
- };
- /* Tables defined/reserved by ACPI and generated by U-Boot */
- enum acpi_tables {
- ACPITAB_BERT,
- ACPITAB_DBG2,
- ACPITAB_DMAR,
- ACPITAB_DSDT,
- ACPITAB_ECDT,
- ACPITAB_FACS,
- ACPITAB_FADT,
- ACPITAB_HEST,
- ACPITAB_HPET,
- ACPITAB_IVRS,
- ACPITAB_MADT,
- ACPITAB_MCFG,
- ACPITAB_NHLT,
- ACPITAB_RSDP,
- ACPITAB_RSDT,
- ACPITAB_SLIT,
- ACPITAB_SPCR,
- ACPITAB_SPMI,
- ACPITAB_SRAT,
- ACPITAB_SSDT,
- ACPITAB_TCPA,
- ACPITAB_TPM2,
- ACPITAB_VFCT,
- ACPITAB_XSDT,
- ACPITAB_COUNT,
- };
- /**
- * acpi_get_table_revision() - Get the revision number generated for a table
- *
- * This keeps the version-number information in one place
- *
- * @table: ACPI table to check
- * @return version number that U-Boot generates
- */
- int acpi_get_table_revision(enum acpi_tables table);
- /**
- * acpi_create_dmar() - Create a DMA Remapping Reporting (DMAR) table
- *
- * @dmar: Place to put the table
- * @flags: DMAR flags to use
- * @return 0 if OK, -ve on error
- */
- int acpi_create_dmar(struct acpi_dmar *dmar, enum dmar_flags flags);
- /**
- * acpi_create_dbg2() - Create a DBG2 table
- *
- * This table describes how to access the debug UART
- *
- * @dbg2: Place to put information
- * @port_type: Serial port type (see ACPI_DBG2_...)
- * @port_subtype: Serial port sub-type (see ACPI_DBG2_...)
- * @address: ACPI address of port
- * @address_size: Size of address space
- * @device_path: Path of device (created using acpi_device_path())
- */
- void acpi_create_dbg2(struct acpi_dbg2_header *dbg2,
- int port_type, int port_subtype,
- struct acpi_gen_regaddr *address, uint32_t address_size,
- const char *device_path);
- /**
- * acpi_fill_header() - Set up a new table header
- *
- * This sets all fields except length, revision, checksum and aslc_revision
- *
- * @header: ACPI header to update
- * @signature: Table signature to use (4 characters)
- */
- void acpi_fill_header(struct acpi_table_header *header, char *signature);
- /**
- * acpi_align() - Align the ACPI output pointer to a 16-byte boundary
- *
- * @ctx: ACPI context
- */
- void acpi_align(struct acpi_ctx *ctx);
- /**
- * acpi_align64() - Align the ACPI output pointer to a 64-byte boundary
- *
- * @ctx: ACPI context
- */
- void acpi_align64(struct acpi_ctx *ctx);
- /**
- * acpi_inc() - Increment the ACPI output pointer by a bit
- *
- * The pointer is NOT aligned afterwards.
- *
- * @ctx: ACPI context
- * @amount: Amount to increment by
- */
- void acpi_inc(struct acpi_ctx *ctx, uint amount);
- /**
- * acpi_inc_align() - Increment the ACPI output pointer by a bit and align
- *
- * The pointer is aligned afterwards to a 16-byte boundary
- *
- * @ctx: ACPI context
- * @amount: Amount to increment by
- */
- void acpi_inc_align(struct acpi_ctx *ctx, uint amount);
- /**
- * acpi_add_table() - Add a new table to the RSDP and XSDT
- *
- * @ctx: ACPI context
- * @table: Table to add
- * @return 0 if OK, -E2BIG if too many tables
- */
- int acpi_add_table(struct acpi_ctx *ctx, void *table);
- /**
- * acpi_setup_base_tables() - Set up context along with RSDP, RSDT and XSDT
- *
- * Set up the context with the given start position. Some basic tables are
- * always needed, so set them up as well.
- *
- * @ctx: Context to set up
- */
- void acpi_setup_base_tables(struct acpi_ctx *ctx, void *start);
- /**
- * acpi_write_rsdp() - Write out an RSDP indicating where the ACPI tables are
- *
- * @rsdp: Address to write RSDP
- * @rsdt: Address of RSDT
- * @xsdt: Address of XSDT
- */
- void acpi_write_rsdp(struct acpi_rsdp *rsdp, struct acpi_rsdt *rsdt,
- struct acpi_xsdt *xsdt);
- #endif /* !__ACPI__*/
- #include <asm/acpi_table.h>
- #endif /* __ACPI_TABLE_H__ */
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