305 lines
9.2 KiB
C
305 lines
9.2 KiB
C
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/****************************************************************************
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* arch/x86_64/include/acpi.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_X86_64_INCLUDE_ACPI_H
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#define __ARCH_X86_64_INCLUDE_ACPI_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/compiler.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define ACPI_SIG_RSDP "RSD PTR " /* Root System Description Pointer */
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/* Tables defined by ACPI spec */
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#define ACPI_SIG_APIC "APIC" /* Multiple APIC Description Table (MADT) */
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#define ACPI_SIG_BERT "BERT"
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#define ACPI_SIG_BGRT "BGRT"
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#define ACPI_SIG_CCEL "CCEL"
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#define ACPI_SIG_CPEP "CPEP"
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#define ACPI_SIG_DSDT "DSDT"
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#define ACPI_SIG_ECDT "ECDT"
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#define ACPI_SIG_EINJ "EINJ"
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#define ACPI_SIG_ERST "ERST"
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#define ACPI_SIG_FACP "FACP"
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#define ACPI_SIG_FACS "FACS"
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#define ACPI_SIG_FPDT "FPDT"
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#define ACPI_SIG_GTDT "GTDT"
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#define ACPI_SIG_HEST "HEST"
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#define ACPI_SIG_MISC "MISC"
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#define ACPI_SIG_MSCT "MSCT"
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#define ACPI_SIG_MPST "MPST"
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#define ACPI_SIG_NFIT "NFIT"
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#define ACPI_SIG_OEMx "OEMx"
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#define ACPI_SIG_PCCT "PCCT"
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#define ACPI_SIG_PHAT "PHAT"
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#define ACPI_SIG_PMTT "PMTT"
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#define ACPI_SIG_PPTT "PPTT"
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#define ACPI_SIG_PSDT "PSDT"
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#define ACPI_SIG_RASF "RASF"
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#define ACPI_SIG_RAS2 "RAS2"
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#define ACPI_SIG_RSDT "RSDT"
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#define ACPI_SIG_SBST "SBST"
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#define ACPI_SIG_SDEV "SDEV"
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#define ACPI_SIG_SLIT "SLIT"
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#define ACPI_SIG_SRAT "SRAT"
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#define ACPI_SIG_SSDT "SSDT"
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#define ACPI_SIG_SVKL "SVKL"
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#define ACPI_SIG_XSDT "XSDT"
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/* Tables not defined by ACPI spec */
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#define ACPI_SIG_AEST "AEST"
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#define ACPI_SIG_AGDI "AGDI"
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#define ACPI_SIG_APMT "APMT"
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#define ACPI_SIG_BDAT "BDAT"
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#define ACPI_SIG_BOOT "BOOT"
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#define ACPI_SIG_CEDT "CEDT"
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#define ACPI_SIG_CSRT "CSRT"
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#define ACPI_SIG_DBGT "DBGT"
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#define ACPI_SIG_DBG2 "DBG2"
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#define ACPI_SIG_DMAR "DMAR"
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#define ACPI_SIG_DRTM "DRTM"
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#define ACPI_SIG_DTPR "DTPR"
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#define ACPI_SIG_ETDT "ETDT"
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#define ACPI_SIG_HPET "HPET"
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#define ACPI_SIG_IBFT "IBFT"
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#define ACPI_SIG_IERS "IERS"
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#define ACPI_SIG_IORT "IORT"
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#define ACPI_SIG_IVRS "IVRS"
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#define ACPI_SIG_KEYP "KEYP"
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#define ACPI_SIG_LPIT "LPIT"
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#define ACPI_SIG_MCFG "MCFG" /* PCI Express Memory-mapped Configuration table */
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#define ACPI_SIG_MCHI "MCHI"
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#define ACPI_SIG_MHSP "MHSP"
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#define ACPI_SIG_MPAM "MPAM"
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#define ACPI_SIG_MSDM "MSDM"
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#define ACPI_SIG_NBFT "NBFT"
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#define ACPI_SIG_PRMT "PRMT"
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#define ACPI_SIG_RGRT "RGRT"
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#define ACPI_SIG_SDEI "SDEI"
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#define ACPI_SIG_SLIC "SLIC"
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#define ACPI_SIG_SPCR "SPCR"
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#define ACPI_SIG_SPMI "SPMI"
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#define ACPI_SIG_STAO "STAO"
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#define ACPI_SIG_SWFT "SWFT"
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#define ACPI_SIG_TCPA "TCPA"
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#define ACPI_SIG_TPM2 "TPM2"
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#define ACPI_SIG_UEFI "UEFI"
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#define ACPI_SIG_WAET "WAET"
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#define ACPI_SIG_WDAT "WDAT"
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#define ACPI_SIG_WDDT "WDDT"
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#define ACPI_SIG_WDRT "WDRT"
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#define ACPI_SIG_WPBT "WPBT"
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#define ACPI_SIG_WSMT "WSMT"
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#define ACPI_SIG_XENV "XENV"
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/* MADT Interrupt Controller Structure types */
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#define ACPI_MADT_TYPE_LOCAL_APIC (0)
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#define ACPI_MADT_TYPE_IO_APIC (1)
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#define ACPI_MADT_TYPE_LOCAL_APIC64 (5)
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#define ACPI_MADT_TYPE_LOCAL_X2APIC (9)
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/* Local APIC Flags */
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#define ACPI_LAPIC_FLAGS_ENABLED (1 << 0)
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#define ACPI_LAPIC_FLAGS_ONLINECAP (1 << 1)
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#define ACPI_LAPIC_FLAGS_RESERVED (0xfffffffc)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Root System Description Pointer (RSDP) Structure */
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begin_packed_struct struct acpi_rsdp_s
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{
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char signature[8]; /* "RSD PTR " sugnature */
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uint8_t checksum; /* ACPI 1.0 checksum */
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char oem_id[6]; /* An OEM-supplied string */
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uint8_t revision; /* The revision of this structure */
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uint32_t rsdt_addr; /* 32 bit physical address of the RSDT */
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uint32_t length; /* The length of the table */
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uint64_t xsdt_addr; /* 64 bit physical address of the XSDT */
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uint8_t ext_checksum; /* Extended checksum */
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uint8_t reserved[3]; /* Reserved field */
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} end_packed_struct;
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/* System Description Table Header */
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begin_packed_struct struct acpi_sdt_s
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{
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char signature[4]; /* Table ASCII identifier */
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uint32_t length; /* The length of the table in bytes */
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uint8_t revision; /* The revision of the structure */
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uint8_t checksum; /* The entire table checksum */
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char oem_id[6]; /* An OEM identification string */
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char oem_table_id[8]; /* An OEM data table string */
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uint32_t oem_revision; /* An OEM revision number */
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uint32_t creator_id; /* Vendor ID */
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uint32_t creator_revision; /* Vendor revision */
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} end_packed_struct;
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/* Root System Description Table */
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begin_packed_struct struct acpi_rsdt_s
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{
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struct acpi_sdt_s sdt;
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uint32_t table_ptrs;
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} end_packed_struct;
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/* Extended System Descriptior Table */
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begin_packed_struct struct acpi_xsdt_s
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{
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struct acpi_sdt_s sdt;
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uint64_t table_ptrs;
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} end_packed_struct;
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/* Common structure for tables entry */
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begin_packed_struct struct acpi_entry_s
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{
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uint8_t type;
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uint8_t length;
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} end_packed_struct;
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/* Multiple APIC Description Table */
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begin_packed_struct struct acpi_madt_s
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{
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struct acpi_sdt_s sdt;
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uint32_t loapic;
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uint32_t flags;
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struct acpi_entry_s entries;
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} end_packed_struct;
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/* Multiple APIC Description Table */
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begin_packed_struct struct acpi_lapic_s
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{
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struct acpi_entry_s entry;
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uint8_t acpi_id;
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uint8_t apic_id;
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uint8_t flags;
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} end_packed_struct;
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/* Configuration space base address allocation structure */
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begin_packed_struct struct acpi_pciseg_s
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{
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uint64_t base_addr; /* Base address */
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uint16_t seg_group_num; /* PCI Segment Group Number */
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uint8_t start_bus; /* Strt PCI bus number */
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uint8_t end_bus; /* End PCI bus number */
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uint32_t reserved; /* Reserved */
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} end_packed_struct;
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/* PCI Express Memory-mapped Configuration Table */
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begin_packed_struct struct acpi_mcfg_s
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{
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struct acpi_sdt_s sdt; /* Header */
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uint64_t reserved; /* Reserved */
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struct acpi_pciseg_s segs; /* Configuration space base addresses */
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} end_packed_struct;
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: acpi_init
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*
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* Description:
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* Initialize ACPI parser.
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*
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****************************************************************************/
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int acpi_init(uintptr_t rsdp);
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/****************************************************************************
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* Name: acpi_madt_get
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*
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* Description:
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* Find the n'th occurence of a MADT entry with a given type.
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*
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****************************************************************************/
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int acpi_madt_get(int type, int n, struct acpi_entry_s **entry);
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/****************************************************************************
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* Name: acpi_lapi_get
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*
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* Description:
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* Get Local APIC entry for a given CPU.
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*
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****************************************************************************/
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int acpi_lapic_get(int cpu, struct acpi_lapic_s **lapic);
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#ifdef CONFIG_ARCH_X86_64_ACPI_DUMP
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/****************************************************************************
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* Name: acpi_dump
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*
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* Description:
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* Dump ACPI tables.
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*
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****************************************************************************/
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void acpi_dump(void);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_X86_64_INCLUDE_ACPI_H */
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