/* * Copyright 2008, Dustin Howett, dustin.howett@gmail.com. All rights reserved. * Copyright 2007, Michael Lotz, mmlr@mlotz.ch. All rights reserved. * Distributed under the terms of the MIT License. */ #ifndef _KERNEL_ARCH_x86_ARCH_ACPI_H #define _KERNEL_ARCH_x86_ARCH_ACPI_H #define ACPI_RSDP_SIGNATURE "RSD PTR " #define ACPI_RSDT_SIGNATURE "RSDT" #define ACPI_XSDT_SIGNATURE "XSDT" #define ACPI_MADT_SIGNATURE "APIC" #define ACPI_LOCAL_APIC_ENABLED 0x01 typedef struct acpi_rsdp_legacy { char signature[8]; /* "RSD PTR " including blank */ uint8 checksum; /* checksum of bytes 0-19 (per ACPI 1.0) */ char oem_id[6]; /* not null terminated */ uint8 revision; /* 0 = ACPI 1.0, 2 = ACPI 3.0 */ uint32 rsdt_address; /* physical memory address of RSDT */ } _PACKED acpi_rsdp_legacy; typedef struct acpi_rsdp_extended { char signature[8]; /* "RSD PTR " including blank */ uint8 checksum; /* checksum of bytes 0-19 (per ACPI 1.0) */ char oem_id[6]; /* not null terminated */ uint8 revision; /* 0 = ACPI 1.0, 2 = ACPI 3.0 */ uint32 rsdt_address; /* physical memory address of RSDT */ uint32 xsdt_length; /* length in bytes including header */ uint64 xsdt_address; /* 64bit physical memory address of XSDT */ uint8 extended_checksum; /* including entire table */ uint8 reserved[3]; } _PACKED acpi_rsdp_extended; typedef acpi_rsdp_extended acpi_rsdp; typedef struct acpi_descriptor_header { char signature[4]; /* table identifier as ASCII string */ uint32 length; /* length in bytes of the entire table */ uint8 revision; uint8 checksum; /* checksum of entire table */ char oem_id[6]; /* not null terminated */ char oem_table_id[8]; /* oem supplied table identifier */ uint32 oem_revision; /* oem supplied revision number */ char creator_id[4]; /* creator / asl compiler id */ uint32 creator_revision; /* compiler revision */ } _PACKED acpi_descriptor_header; typedef struct acpi_madt { acpi_descriptor_header header; /* "APIC" signature */ uint32 local_apic_address; /* physical address for local CPUs APICs */ uint32 flags; } _PACKED acpi_madt; enum { ACPI_MADT_LOCAL_APIC = 0, ACPI_MADT_IO_APIC = 1, ACPI_MADT_INTERRUPT_SOURCE_OVERRIDE = 2, ACPI_MADT_NMI_SOURCE = 3, ACPI_MADT_LOCAL_APIC_NMI = 4, ACPI_MADT_LOCAL_APIC_ADDRESS_OVERRIDE = 5, ACPI_MADT_IO_SAPIC = 6, ACPI_MADT_LOCAL_SAPIC = 7, ACPI_MADT_PLATFORM_INTERRUPT_SOURCE = 8, ACPI_MADT_PROCESSOR_LOCAL_X2_APIC_NMI = 9, ACPI_MADT_LOCAL_X2_APIC_NMI = 0XA }; typedef struct acpi_apic { uint8 type; uint8 length; } _PACKED acpi_apic; typedef struct acpi_local_apic { uint8 type; /* 0 = processor local APIC */ uint8 length; /* 8 bytes */ uint8 acpi_processor_id; uint8 apic_id; /* the id of this APIC */ uint32 flags; /* 1 = enabled */ } _PACKED acpi_local_apic; typedef struct acpi_io_apic { uint8 type; /* 1 = I/O APIC */ uint8 length; /* 12 bytes */ uint8 io_apic_id; /* the id of this APIC */ uint8 reserved; uint32 io_apic_address; /* physical address of I/O APIC */ uint32 interrupt_base; /* global system interrupt base */ } _PACKED acpi_io_apic; typedef struct acpi_int_source_override { uint8 type; /* 2 = Interrupt source override */ uint8 length; /* 10 bytes */ uint8 bus; /* 0 = ISA */ uint8 source; /* Bus-relative interrupt source (IRQ) */ uint32 interrupt; /* global system interrupt this bus-relative source int will signal */ uint16 flags; /* MPS INTI flags. See Table 5-25 in ACPI Spec 4.0a or similar */ } _PACKED acpi_int_source_override; typedef struct acpi_nmi_source { uint8 type; /* 3 = NMI */ uint8 length; /* 8 bytes */ uint16 flags; /* Same as MPS INTI flags. See Table 5-25 in ACPI Spec 4.0a or similar */ uint32 interrupt; /* global system interrupt this non-maskable interrupt will trigger */ } _PACKED acpi_nmi_source; typedef struct acpi_local_apic_nmi { uint8 type; /* 4 = local APIC NMI */ uint8 length; /* 6 bytes */ uint8 acpi_processor_id; /* Processor ID corresponding to processor ID in acpi_local_apic. 0xFF means it applies to all processors */ uint16 flags; /* Same as MPS INTI flags. See Table 5-25 in ACPI Spec 4.0a or similar */ uint8 local_interrupt; /* Local APIC interrupt input LINTn to which NMI is connected */ } _PACKED acpi_local_apic_nmi; typedef struct acpi_local_apic_address_override { uint8 type; /* 5 = local APIC address override */ uint8 length; /* 12 bytes */ uint16 reserved; /* reserved (must be set to zero) */ uint64 local_apic_address; /* Physical address of local APIC. See table 5-28 in ACPI Spec 4.0a for more */ } _PACKED acpi_local_apic_address_override; typedef struct acpi_io_sapic { uint8 type; /* 6 = I/0 SAPIC (should be used if it exists instead of I/O APIC if both exists for a APIC ID.*/ uint8 length; /* 16 bytes */ uint8 io_apic_id; /* the id of this SAPIC */ uint8 reserved; /* reserved (must be set to zero) */ uint32 interrupt_base; /* global system interrupt base */ uint64 sapic_address; /* The physical address to access this I/0 SAPIC. Each SAPIC resides at a unique address */ } _PACKED acpi_io_sapic; typedef struct acpi_local_sapic { uint8 type; /* 7 = processor local SAPIC */ uint8 length; /* n bytes */ uint8 acpi_processor_id; uint8 local_sapic_id; uint8 local_sapic_eid; uint8 reserved1; /* reserved (must be set to zero) */ uint8 reserved2; /* reserved (must be set to zero) */ uint8 reserved3; /* reserved (must be set to zero) */ uint32 flags; /* Local SAPIC flags, see table 5-22 in ACPI Spec 4.0a */ uint32 processor_uid_nr; /* Matches _UID of a processor when it is a number */ char processor_uid_str[]; /* Matches _UID of a processor when it is a string. Null-terminated */ } _PACKED acpi_local_sapic; typedef struct acpi_platform_interrupt_source { uint8 type; /* 8 = platform interrupt source */ uint8 length; /* 16 bytes */ uint16 flags; /* Same as MPS INTI flags. See Table 5-25 in ACPI Spec 4.0a or similar */ uint8 interrupt_type; /* 1 PMI, 2 INIT, 3 Corrected Platform Error Interrupt */ uint8 processor_id; /* processor ID of destination */ uint8 processor_eid; /* processor EID of destination */ uint8 io_sapic_vector; /* value that must be used to program the vector field of the I/O SAPIC redirection entry for entries with PMI type. */ uint32 interrupt; /* global system interrupt this platform interrupt will trigger */ uint32 platform_int_flags; /* Platform Interrupt Source Flags. See Table 5-32 of ACPI Spec 4.0a for desc */ } _PACKED acpi_platform_interrupt_source; typedef struct acpi_local_x2_apic { uint8 type; /* 9 = processor local x2APIC */ uint8 length; /* 16 bytes */ uint16 reserved; /* reserved (must be zero) */ uint32 x2apic_id; /* processor's local x2APIC ID */ uint32 flags; /* 1 = enabled. */ uint32 processor_uid_nr; /* Matches _UID of a processor when it is a number */ } _PACKED acpi_local_x2_apic; typedef struct acpi_local_x2_apic_nmi { uint8 type; /* 0xA = local x2APIC NMI */ uint8 length; /* 12 bytes */ uint16 flags; /* Same as MPS INTI flags. See Table 5-25 in ACPI Spec 4.0a or similar */ uint32 acpi_processor_uid; /* UID corresponding to ID in processor device object. 0xFFFFFFFF means it applies to all processors */ uint8 local_interrupt; /* Local x2APIC interrupt input LINTn to which NMI is connected */ uint8 reserved1; /* reserved (must be set to zero) */ uint8 reserved2; /* reserved (must be set to zero) */ uint8 reserved3; /* reserved (must be set to zero) */ } _PACKED acpi_local_x2_apic_nmi; #endif /* _KERNEL_ARCH_x86_ARCH_ACPI_H */
