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nuttx/arch/x86_64/include/acpi.h
p-szafonimateusz 30226901c0 arch/x86_64: add simple ACPI parser 
add simple ACPI parser for intel64.

For now RSDP signature can be found in BIOS legacy region or can be provided by multiboot2

Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
2024-04-22 23:47:09 +08:00

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