| 1 | /*
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| 2 | * hal_acpi.h - ACPI-specific values and structures
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| 3 | *
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| 4 | * Copyright (c) 2017 Maxime Villard
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| 5 | * Inspired by ACPICA.
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| 6 | *
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| 7 | * This file is part of ALMOS-MKH.
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| 8 | *
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| 9 | * ALMOS-MKH is free software; you can redistribute it and/or modify it
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| 10 | * under the terms of the GNU General Public License as published by
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| 11 | * the Free Software Foundation; version 2.0 of the License.
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| 12 | *
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| 13 | * ALMOS-MKH is distributed in the hope that it will be useful, but
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| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 16 | * General Public License for more details.
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| 17 | *
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| 18 | * You should have received a copy of the GNU General Public License
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| 19 | * along with ALMOS-MKH; if not, write to the Free Software Foundation,
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| 20 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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| 21 | */
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| 22 |
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| 23 | /*
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| 24 | * Copyright (C) 2000 - 2017, Intel Corp.
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| 25 | * All rights reserved.
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| 26 | *
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| 27 | * Redistribution and use in source and binary forms, with or without
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| 28 | * modification, are permitted provided that the following conditions
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| 29 | * are met:
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| 30 | * 1. Redistributions of source code must retain the above copyright
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| 31 | * notice, this list of conditions, and the following disclaimer,
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| 32 | * without modification.
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| 33 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer
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| 34 | * substantially similar to the "NO WARRANTY" disclaimer below
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| 35 | * ("Disclaimer") and any redistribution must be conditioned upon
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| 36 | * including a substantially similar Disclaimer requirement for further
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| 37 | * binary redistribution.
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| 38 | * 3. Neither the names of the above-listed copyright holders nor the names
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| 39 | * of any contributors may be used to endorse or promote products derived
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| 40 | * from this software without specific prior written permission.
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| 41 | *
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| 42 | * Alternatively, this software may be distributed under the terms of the
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| 43 | * GNU General Public License ("GPL") version 2 as published by the Free
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| 44 | * Software Foundation.
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| 45 | *
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| 46 | * NO WARRANTY
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| 47 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 48 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 49 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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| 50 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 51 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 52 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 53 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 54 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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| 55 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 56 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 57 | * POSSIBILITY OF SUCH DAMAGES.
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| 58 | */
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| 59 |
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| 60 | void hal_acpi_init( void );
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| 61 |
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| 62 | #define ACPI_RSDP_ALIGN 16
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| 63 | #define ACPI_RSDP_SIGNATURE "RSD PTR "
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| 64 | #define ACPI_RSDP_SIGNATURE_SIZE 8
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| 65 |
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| 66 | #define ACPI_OEM_ID_SIZE 6
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| 67 |
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| 68 | #define ACPI_NAME_SIZE 4
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| 69 |
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| 70 | /* Sizes for ACPI table headers */
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| 71 | #define ACPI_OEM_ID_SIZE 6
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| 72 | #define ACPI_OEM_TABLE_ID_SIZE 8
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| 73 |
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| 74 |
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| 75 | /*******************************************************************************
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| 76 | * RSDP - Root System Description Pointer (Signature is "RSD PTR ")
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| 77 | * Version 2
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| 78 | ******************************************************************************/
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| 79 |
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| 80 | struct acpi_table_rsdp {
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| 81 | char Signature[8]; /* ACPI signature, contains "RSD PTR " */
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| 82 | uint8_t Checksum; /* ACPI 1.0 checksum */
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| 83 | char OemId[ACPI_OEM_ID_SIZE]; /* OEM identification */
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| 84 | uint8_t Revision; /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
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| 85 | uint32_t RsdtPhysicalAddress; /* 32-bit physical address of the RSDT */
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| 86 | uint32_t Length; /* Table length in bytes, including header (ACPI 2.0+) */
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| 87 | uint64_t XsdtPhysicalAddress; /* 64-bit physical address of the XSDT (ACPI 2.0+) */
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| 88 | uint8_t ExtendedChecksum; /* Checksum of entire table (ACPI 2.0+) */
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| 89 | uint8_t Reserved[3]; /* Reserved, must be zero */
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| 90 | } __packed;
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| 91 | typedef struct acpi_table_rsdp rsdp_t;
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| 92 |
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| 93 | /*******************************************************************************
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| 94 | * Master ACPI Table Header. This common header is used by all ACPI tables
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| 95 | * except the RSDP and FACS.
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| 96 | ******************************************************************************/
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| 97 |
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| 98 | struct acpi_table_header {
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| 99 | char Signature[ACPI_NAME_SIZE]; /* ASCII table signature */
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| 100 | uint32_t Length; /* Length of table in bytes, including this header */
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| 101 | uint8_t Revision; /* ACPI Specification minor version number */
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| 102 | uint8_t Checksum; /* To make sum of entire table == 0 */
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| 103 | char OemId[ACPI_OEM_ID_SIZE]; /* ASCII OEM identification */
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| 104 | char OemTableId[ACPI_OEM_TABLE_ID_SIZE]; /* ASCII OEM table identification */
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| 105 | uint32_t OemRevision; /* OEM revision number */
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| 106 | char AslCompilerId[ACPI_NAME_SIZE]; /* ASCII ASL compiler vendor ID */
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| 107 | uint32_t AslCompilerRevision; /* ASL compiler version */
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| 108 | } __packed;
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| 109 | typedef struct acpi_table_header header_t;
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| 110 |
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| 111 | /*******************************************************************************
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| 112 | * RSDT - Root System Description Tables
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| 113 | * Version 1
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| 114 | ******************************************************************************/
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| 115 |
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| 116 | struct acpi_table_rsdt {
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| 117 | header_t Header; /* Common ACPI table header */
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| 118 | uint32_t TableOffsetEntry[1]; /* Array of pointers to ACPI tables */
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| 119 | } __packed;
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| 120 | typedef struct acpi_table_rsdt rsdt_t;
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| 121 |
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| 122 | /*******************************************************************************
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| 123 | * Common subtable headers
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| 124 | ******************************************************************************/
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| 125 |
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| 126 | struct acpi_subtable_header {
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| 127 | uint8_t Type;
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| 128 | uint8_t Length;
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| 129 | } __packed;
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| 130 | typedef struct acpi_subtable_header subheader_t;
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| 131 |
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| 132 | /*******************************************************************************
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| 133 | * MADT - Multiple APIC Description Table
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| 134 | * Version 3
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| 135 | ******************************************************************************/
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| 136 |
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| 137 | struct acpi_table_madt {
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| 138 | header_t Header; /* Common ACPI table header */
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| 139 | uint32_t Address; /* Physical address of local APIC */
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| 140 | uint32_t Flags;
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| 141 | } __packed;
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| 142 | typedef struct acpi_table_madt madt_t;
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| 143 |
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| 144 | /*******************************************************************************
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| 145 | * MADT structures
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| 146 | ******************************************************************************/
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| 147 |
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| 148 | #define ACPI_MADT_LAPIC_ENABLED 0x01
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| 149 |
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| 150 | enum AcpiMadtType {
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| 151 | ACPI_MADT_TYPE_LOCAL_APIC = 0,
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| 152 | ACPI_MADT_TYPE_IO_APIC = 1,
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| 153 | ACPI_MADT_TYPE_INTERRUPT_OVERRIDE = 2,
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| 154 | ACPI_MADT_TYPE_NMI_SOURCE = 3,
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| 155 | ACPI_MADT_TYPE_LOCAL_APIC_NMI = 4,
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| 156 | ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE = 5,
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| 157 | ACPI_MADT_TYPE_IO_SAPIC = 6,
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| 158 | ACPI_MADT_TYPE_LOCAL_SAPIC = 7,
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| 159 | ACPI_MADT_TYPE_INTERRUPT_SOURCE = 8,
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| 160 | ACPI_MADT_TYPE_LOCAL_X2APIC = 9,
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| 161 | ACPI_MADT_TYPE_LOCAL_X2APIC_NMI = 10,
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| 162 | ACPI_MADT_TYPE_GENERIC_INTERRUPT = 11,
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| 163 | ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR = 12,
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| 164 | ACPI_MADT_TYPE_GENERIC_MSI_FRAME = 13,
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| 165 | ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR = 14,
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| 166 | ACPI_MADT_TYPE_GENERIC_TRANSLATOR = 15,
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| 167 | ACPI_MADT_TYPE_RESERVED = 16 /* 16 and greater are reserved */
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| 168 | };
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| 169 |
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| 170 | struct acpi_madt_local_apic {
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| 171 | subheader_t Header;
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| 172 | uint8_t ProcessorId; /* ACPI processor id */
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| 173 | uint8_t Id; /* Processor's local APIC id */
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| 174 | uint32_t LapicFlags;
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| 175 | } __packed;
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| 176 | typedef struct acpi_madt_local_apic madt_lapic_t;
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| 177 |
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| 178 | struct acpi_madt_local_apic_override {
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| 179 | subheader_t Header;
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| 180 | uint16_t Reserved; /* Reserved, must be zero */
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| 181 | uint64_t Address; /* APIC physical address */
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| 182 | } __packed;
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| 183 | typedef struct acpi_madt_local_apic_override madt_lapic_override_t;
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| 184 |
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| 185 | struct acpi_madt_io_apic {
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| 186 | subheader_t Header;
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| 187 | uint8_t Id; /* I/O APIC ID */
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| 188 | uint8_t Reserved; /* Reserved - must be zero */
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| 189 | uint32_t Address; /* APIC physical address */
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| 190 | uint32_t GlobalIrqBase; /* Global system interrupt where INTI lines start */
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| 191 | } __packed;
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| 192 | typedef struct acpi_madt_io_apic madt_ioapic_t;
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| 193 |
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| 194 | /*******************************************************************************
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| 195 | * SRAT - System Resource Affinity Table
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| 196 | * Version 3
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| 197 | ******************************************************************************/
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| 198 |
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| 199 | struct acpi_table_srat {
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| 200 | header_t Header; /* Common ACPI table header */
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| 201 | uint32_t TableRevision; /* Must be value '1' */
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| 202 | uint64_t Reserved; /* Reserved, must be zero */
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| 203 | };
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| 204 | typedef struct acpi_table_srat srat_t;
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| 205 |
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| 206 | /*******************************************************************************
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| 207 | * SRAT structures
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| 208 | ******************************************************************************/
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| 209 |
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| 210 | enum AcpiSratType {
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| 211 | ACPI_SRAT_TYPE_CPU_AFFINITY = 0,
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| 212 | ACPI_SRAT_TYPE_MEMORY_AFFINITY = 1,
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| 213 | ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY = 2,
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| 214 | ACPI_SRAT_TYPE_GICC_AFFINITY = 3,
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| 215 | ACPI_SRAT_TYPE_RESERVED = 4 /* 4 and greater are reserved */
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| 216 | };
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| 217 |
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| 218 | #define ACPI_SRAT_CPU_USE_AFFINITY (1) /* 00: Use affinity structure */
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| 219 |
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| 220 | struct acpi_srat_cpu_affinity {
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| 221 | subheader_t Header;
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| 222 | uint8_t ProximityDomainLo;
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| 223 | uint8_t ApicId;
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| 224 | uint32_t Flags;
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| 225 | uint8_t LocalSapicEid;
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| 226 | uint8_t ProximityDomainHi[3];
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| 227 | uint32_t ClockDomain;
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| 228 | };
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| 229 | typedef struct acpi_srat_cpu_affinity srat_cpu_affinity_t;
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| 230 |
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| 231 | #define ACPI_SRAT_MEM_ENABLED (1) /* 00: Use affinity structure */
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| 232 | #define ACPI_SRAT_MEM_HOT_PLUGGABLE (1<<1) /* 01: Memory region is hot pluggable */
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| 233 | #define ACPI_SRAT_MEM_NON_VOLATILE (1<<2) /* 02: Memory region is non-volatile */
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| 234 |
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| 235 | struct acpi_srat_mem_affinity {
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| 236 | subheader_t Header;
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| 237 | uint32_t ProximityDomain;
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| 238 | uint16_t Reserved; /* Reserved, must be zero */
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| 239 | uint64_t BaseAddress;
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| 240 | uint64_t Length;
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| 241 | uint32_t Reserved1;
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| 242 | uint32_t Flags;
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| 243 | uint64_t Reserved2; /* Reserved, must be zero */
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| 244 | };
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| 245 | typedef struct acpi_srat_mem_affinity srat_mem_affinity_t;
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| 246 |
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