1/* 2 * Copyright 2008, Dustin Howett, dustin.howett@gmail.com. All rights reserved. 3 * Copyright 2007, Michael Lotz, mmlr@mlotz.ch. All rights reserved. 4 * Distributed under the terms of the MIT License. 5 */ 6#ifndef _KERNEL_ARCH_x86_ARCH_ACPI_H 7#define _KERNEL_ARCH_x86_ARCH_ACPI_H 8 9#define ACPI_RSDP_SIGNATURE "RSD PTR " 10#define ACPI_RSDT_SIGNATURE "RSDT" 11#define ACPI_XSDT_SIGNATURE "XSDT" 12#define ACPI_MADT_SIGNATURE "APIC" 13 14#define ACPI_LOCAL_APIC_ENABLED 0x01 15 16typedef struct acpi_rsdp_legacy { 17 char signature[8]; /* "RSD PTR " including blank */ 18 uint8 checksum; /* checksum of bytes 0-19 (per ACPI 1.0) */ 19 char oem_id[6]; /* not null terminated */ 20 uint8 revision; /* 0 = ACPI 1.0, 2 = ACPI 3.0 */ 21 uint32 rsdt_address; /* physical memory address of RSDT */ 22} _PACKED acpi_rsdp_legacy; 23 24typedef struct acpi_rsdp_extended { 25 char signature[8]; /* "RSD PTR " including blank */ 26 uint8 checksum; /* checksum of bytes 0-19 (per ACPI 1.0) */ 27 char oem_id[6]; /* not null terminated */ 28 uint8 revision; /* 0 = ACPI 1.0, 2 = ACPI 3.0 */ 29 uint32 rsdt_address; /* physical memory address of RSDT */ 30 uint32 xsdt_length; /* length in bytes including header */ 31 uint64 xsdt_address; /* 64bit physical memory address of XSDT */ 32 uint8 extended_checksum; /* including entire table */ 33 uint8 reserved[3]; 34} _PACKED acpi_rsdp_extended; 35 36typedef acpi_rsdp_extended acpi_rsdp; 37 38typedef struct acpi_descriptor_header { 39 char signature[4]; /* table identifier as ASCII string */ 40 uint32 length; /* length in bytes of the entire table */ 41 uint8 revision; 42 uint8 checksum; /* checksum of entire table */ 43 char oem_id[6]; /* not null terminated */ 44 char oem_table_id[8]; /* oem supplied table identifier */ 45 uint32 oem_revision; /* oem supplied revision number */ 46 char creator_id[4]; /* creator / asl compiler id */ 47 uint32 creator_revision; /* compiler revision */ 48} _PACKED acpi_descriptor_header; 49 50typedef struct acpi_madt { 51 acpi_descriptor_header header; /* "APIC" signature */ 52 uint32 local_apic_address; /* physical address for local CPUs APICs */ 53 uint32 flags; 54} _PACKED acpi_madt; 55 56enum { 57 ACPI_MADT_LOCAL_APIC = 0, 58 ACPI_MADT_IO_APIC = 1, 59 ACPI_MADT_INTERRUPT_SOURCE_OVERRIDE = 2, 60 ACPI_MADT_NMI_SOURCE = 3, 61 ACPI_MADT_LOCAL_APIC_NMI = 4, 62 ACPI_MADT_LOCAL_APIC_ADDRESS_OVERRIDE = 5, 63 ACPI_MADT_IO_SAPIC = 6, 64 ACPI_MADT_LOCAL_SAPIC = 7, 65 ACPI_MADT_PLATFORM_INTERRUPT_SOURCE = 8, 66 ACPI_MADT_PROCESSOR_LOCAL_X2_APIC_NMI = 9, 67 ACPI_MADT_LOCAL_X2_APIC_NMI = 0XA 68}; 69 70typedef struct acpi_apic { 71 uint8 type; 72 uint8 length; 73} _PACKED acpi_apic; 74 75typedef struct acpi_local_apic { 76 uint8 type; /* 0 = processor local APIC */ 77 uint8 length; /* 8 bytes */ 78 uint8 acpi_processor_id; 79 uint8 apic_id; /* the id of this APIC */ 80 uint32 flags; /* 1 = enabled */ 81} _PACKED acpi_local_apic; 82 83typedef struct acpi_io_apic { 84 uint8 type; /* 1 = I/O APIC */ 85 uint8 length; /* 12 bytes */ 86 uint8 io_apic_id; /* the id of this APIC */ 87 uint8 reserved; 88 uint32 io_apic_address; /* physical address of I/O APIC */ 89 uint32 interrupt_base; /* global system interrupt base */ 90} _PACKED acpi_io_apic; 91 92typedef struct acpi_int_source_override { 93 uint8 type; /* 2 = Interrupt source override */ 94 uint8 length; /* 10 bytes */ 95 uint8 bus; /* 0 = ISA */ 96 uint8 source; /* Bus-relative interrupt source (IRQ) */ 97 uint32 interrupt; /* global system interrupt this 98 bus-relative source int will signal */ 99 uint16 flags; /* MPS INTI flags. See Table 5-25 in 100 ACPI Spec 4.0a or similar */ 101} _PACKED acpi_int_source_override; 102 103typedef struct acpi_nmi_source { 104 uint8 type; /* 3 = NMI */ 105 uint8 length; /* 8 bytes */ 106 uint16 flags; /* Same as MPS INTI flags. See Table 5-25 in 107 ACPI Spec 4.0a or similar */ 108 uint32 interrupt; /* global system interrupt this 109 non-maskable interrupt will trigger */ 110} _PACKED acpi_nmi_source; 111 112typedef struct acpi_local_apic_nmi { 113 uint8 type; /* 4 = local APIC NMI */ 114 uint8 length; /* 6 bytes */ 115 uint8 acpi_processor_id; /* Processor ID corresponding to processor 116 ID in acpi_local_apic. 0xFF means 117 it applies to all processors */ 118 uint16 flags; /* Same as MPS INTI flags. See Table 5-25 in 119 ACPI Spec 4.0a or similar */ 120 uint8 local_interrupt; /* Local APIC interrupt input LINTn to which 121 NMI is connected */ 122} _PACKED acpi_local_apic_nmi; 123 124typedef struct acpi_local_apic_address_override { 125 uint8 type; /* 5 = local APIC address override */ 126 uint8 length; /* 12 bytes */ 127 uint16 reserved; /* reserved (must be set to zero) */ 128 uint64 local_apic_address; /* Physical address of local APIC. See table 129 5-28 in ACPI Spec 4.0a for more */ 130} _PACKED acpi_local_apic_address_override; 131 132typedef struct acpi_io_sapic { 133 uint8 type; /* 6 = I/0 SAPIC (should be used if it 134 exists instead of I/O APIC if both exists 135 for a APIC ID.*/ 136 uint8 length; /* 16 bytes */ 137 uint8 io_apic_id; /* the id of this SAPIC */ 138 uint8 reserved; /* reserved (must be set to zero) */ 139 uint32 interrupt_base; /* global system interrupt base */ 140 uint64 sapic_address; /* The physical address to access this I/0 141 SAPIC. Each SAPIC resides at a unique 142 address */ 143} _PACKED acpi_io_sapic; 144 145typedef struct acpi_local_sapic { 146 uint8 type; /* 7 = processor local SAPIC */ 147 uint8 length; /* n bytes */ 148 uint8 acpi_processor_id; 149 uint8 local_sapic_id; 150 uint8 local_sapic_eid; 151 uint8 reserved1; /* reserved (must be set to zero) */ 152 uint8 reserved2; /* reserved (must be set to zero) */ 153 uint8 reserved3; /* reserved (must be set to zero) */ 154 uint32 flags; /* Local SAPIC flags, see table 5-22 in 155 ACPI Spec 4.0a */ 156 uint32 processor_uid_nr; /* Matches _UID of a processor when it is a 157 number */ 158 char processor_uid_str[]; /* Matches _UID of a processor when it is a 159 string. Null-terminated */ 160} _PACKED acpi_local_sapic; 161 162typedef struct acpi_platform_interrupt_source { 163 uint8 type; /* 8 = platform interrupt source */ 164 uint8 length; /* 16 bytes */ 165 uint16 flags; /* Same as MPS INTI flags. See Table 5-25 in 166 ACPI Spec 4.0a or similar */ 167 uint8 interrupt_type; /* 1 PMI, 2 INIT, 3 Corrected Platform 168 Error Interrupt */ 169 uint8 processor_id; /* processor ID of destination */ 170 uint8 processor_eid; /* processor EID of destination */ 171 uint8 io_sapic_vector; /* value that must be used to program the 172 vector field of the I/O SAPIC redirection 173 entry for entries with PMI type. */ 174 uint32 interrupt; /* global system interrupt this 175 platform interrupt will trigger */ 176 uint32 platform_int_flags; /* Platform Interrupt Source Flags. See 177 Table 5-32 of ACPI Spec 4.0a for desc */ 178} _PACKED acpi_platform_interrupt_source; 179 180typedef struct acpi_local_x2_apic { 181 uint8 type; /* 9 = processor local x2APIC */ 182 uint8 length; /* 16 bytes */ 183 uint16 reserved; /* reserved (must be zero) */ 184 uint32 x2apic_id; /* processor's local x2APIC ID */ 185 uint32 flags; /* 1 = enabled. */ 186 uint32 processor_uid_nr; /* Matches _UID of a processor when it is a 187 number */ 188} _PACKED acpi_local_x2_apic; 189 190typedef struct acpi_local_x2_apic_nmi { 191 uint8 type; /* 0xA = local x2APIC NMI */ 192 uint8 length; /* 12 bytes */ 193 uint16 flags; /* Same as MPS INTI flags. See Table 5-25 in 194 ACPI Spec 4.0a or similar */ 195 uint32 acpi_processor_uid; /* UID corresponding to ID in processor 196 device object. 0xFFFFFFFF means 197 it applies to all processors */ 198 uint8 local_interrupt; /* Local x2APIC interrupt input LINTn to 199 which NMI is connected */ 200 uint8 reserved1; /* reserved (must be set to zero) */ 201 uint8 reserved2; /* reserved (must be set to zero) */ 202 uint8 reserved3; /* reserved (must be set to zero) */ 203} _PACKED acpi_local_x2_apic_nmi; 204 205 206#endif /* _KERNEL_ARCH_x86_ARCH_ACPI_H */ 207