| #ifndef __ACPI_H |
| #define __ACPI_H |
| |
| #include "types.h" // u32 |
| |
| /* |
| * ACPI 2.0 Generic Address Space definition. |
| */ |
| struct acpi_20_generic_address { |
| u8 address_space_id; |
| u8 register_bit_width; |
| u8 register_bit_offset; |
| u8 reserved; |
| u64 address; |
| } PACKED; |
| |
| #define RSDP_SIGNATURE 0x2052545020445352LL // "RSD PTR " |
| |
| struct rsdp_descriptor { /* Root System Descriptor Pointer */ |
| u64 signature; /* ACPI signature, contains "RSD PTR " */ |
| u8 checksum; /* To make sum of struct == 0 */ |
| u8 oem_id [6]; /* OEM identification */ |
| u8 revision; /* Must be 0 for 1.0, 2 for 2.0 */ |
| u32 rsdt_physical_address; /* 32-bit physical address of RSDT */ |
| u32 length; /* XSDT Length in bytes including hdr */ |
| u64 xsdt_physical_address; /* 64-bit physical address of XSDT */ |
| u8 extended_checksum; /* Checksum of entire table */ |
| u8 reserved [3]; /* Reserved field must be 0 */ |
| }; |
| |
| /* Table structure from Linux kernel (the ACPI tables are under the |
| BSD license) */ |
| |
| #define ACPI_TABLE_HEADER_DEF /* ACPI common table header */ \ |
| u32 signature; /* ACPI signature (4 ASCII characters) */ \ |
| u32 length; /* Length of table, in bytes, including header */ \ |
| u8 revision; /* ACPI Specification minor version # */ \ |
| u8 checksum; /* To make sum of entire table == 0 */ \ |
| u8 oem_id [6]; /* OEM identification */ \ |
| u8 oem_table_id [8]; /* OEM table identification */ \ |
| u32 oem_revision; /* OEM revision number */ \ |
| u8 asl_compiler_id [4]; /* ASL compiler vendor ID */ \ |
| u32 asl_compiler_revision; /* ASL compiler revision number */ |
| |
| |
| /* |
| * ACPI 1.0 Fixed ACPI Description Table (FADT) |
| */ |
| #define FACP_SIGNATURE 0x50434146 // FACP |
| struct fadt_descriptor_rev1 |
| { |
| ACPI_TABLE_HEADER_DEF /* ACPI common table header */ |
| u32 firmware_ctrl; /* Physical address of FACS */ |
| u32 dsdt; /* Physical address of DSDT */ |
| u8 model; /* System Interrupt Model */ |
| u8 reserved1; /* Reserved */ |
| u16 sci_int; /* System vector of SCI interrupt */ |
| u32 smi_cmd; /* Port address of SMI command port */ |
| u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */ |
| u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */ |
| u8 S4bios_req; /* Value to write to SMI CMD to enter S4BIOS state */ |
| u8 reserved2; /* Reserved - must be zero */ |
| u32 pm1a_evt_blk; /* Port address of Power Mgt 1a acpi_event Reg Blk */ |
| u32 pm1b_evt_blk; /* Port address of Power Mgt 1b acpi_event Reg Blk */ |
| u32 pm1a_cnt_blk; /* Port address of Power Mgt 1a Control Reg Blk */ |
| u32 pm1b_cnt_blk; /* Port address of Power Mgt 1b Control Reg Blk */ |
| u32 pm2_cnt_blk; /* Port address of Power Mgt 2 Control Reg Blk */ |
| u32 pm_tmr_blk; /* Port address of Power Mgt Timer Ctrl Reg Blk */ |
| u32 gpe0_blk; /* Port addr of General Purpose acpi_event 0 Reg Blk */ |
| u32 gpe1_blk; /* Port addr of General Purpose acpi_event 1 Reg Blk */ |
| u8 pm1_evt_len; /* Byte length of ports at pm1_x_evt_blk */ |
| u8 pm1_cnt_len; /* Byte length of ports at pm1_x_cnt_blk */ |
| u8 pm2_cnt_len; /* Byte Length of ports at pm2_cnt_blk */ |
| u8 pm_tmr_len; /* Byte Length of ports at pm_tm_blk */ |
| u8 gpe0_blk_len; /* Byte Length of ports at gpe0_blk */ |
| u8 gpe1_blk_len; /* Byte Length of ports at gpe1_blk */ |
| u8 gpe1_base; /* Offset in gpe model where gpe1 events start */ |
| u8 reserved3; /* Reserved */ |
| u16 plvl2_lat; /* Worst case HW latency to enter/exit C2 state */ |
| u16 plvl3_lat; /* Worst case HW latency to enter/exit C3 state */ |
| u16 flush_size; /* Size of area read to flush caches */ |
| u16 flush_stride; /* Stride used in flushing caches */ |
| u8 duty_offset; /* Bit location of duty cycle field in p_cnt reg */ |
| u8 duty_width; /* Bit width of duty cycle field in p_cnt reg */ |
| u8 day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */ |
| u8 mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */ |
| u8 century; /* Index to century in RTC CMOS RAM */ |
| u8 reserved4; /* Reserved */ |
| u8 reserved4a; /* Reserved */ |
| u8 reserved4b; /* Reserved */ |
| u32 flags; |
| } PACKED; |
| |
| struct acpi_table_header /* ACPI common table header */ |
| { |
| ACPI_TABLE_HEADER_DEF |
| } PACKED; |
| |
| /* |
| * ACPI 1.0 Root System Description Table (RSDT) |
| */ |
| #define RSDT_SIGNATURE 0x54445352 // RSDT |
| struct rsdt_descriptor_rev1 |
| { |
| ACPI_TABLE_HEADER_DEF /* ACPI common table header */ |
| u32 table_offset_entry[0]; /* Array of pointers to other */ |
| /* ACPI tables */ |
| } PACKED; |
| |
| /* |
| * ACPI 1.0 Firmware ACPI Control Structure (FACS) |
| */ |
| #define FACS_SIGNATURE 0x53434146 // FACS |
| struct facs_descriptor_rev1 |
| { |
| u32 signature; /* ACPI Signature */ |
| u32 length; /* Length of structure, in bytes */ |
| u32 hardware_signature; /* Hardware configuration signature */ |
| u32 firmware_waking_vector; /* ACPI OS waking vector */ |
| u32 global_lock; /* Global Lock */ |
| u32 flags; |
| u8 resverved3 [40]; /* Reserved - must be zero */ |
| } PACKED; |
| |
| /* |
| * Differentiated System Description Table (DSDT) |
| */ |
| #define DSDT_SIGNATURE 0x54445344 // DSDT |
| |
| /* |
| * MADT values and structures |
| */ |
| |
| /* Values for MADT PCATCompat */ |
| |
| #define DUAL_PIC 0 |
| #define MULTIPLE_APIC 1 |
| |
| /* Master MADT */ |
| |
| #define APIC_SIGNATURE 0x43495041 // APIC |
| struct multiple_apic_table |
| { |
| ACPI_TABLE_HEADER_DEF /* ACPI common table header */ |
| u32 local_apic_address; /* Physical address of local APIC */ |
| u32 flags; |
| } PACKED; |
| |
| /* Values for Type in APIC sub-headers */ |
| |
| #define APIC_PROCESSOR 0 |
| #define APIC_IO 1 |
| #define APIC_XRUPT_OVERRIDE 2 |
| #define APIC_NMI 3 |
| #define APIC_LOCAL_NMI 4 |
| #define APIC_ADDRESS_OVERRIDE 5 |
| #define APIC_IO_SAPIC 6 |
| #define APIC_LOCAL_SAPIC 7 |
| #define APIC_XRUPT_SOURCE 8 |
| #define APIC_RESERVED 9 /* 9 and greater are reserved */ |
| |
| /* |
| * MADT sub-structures (Follow MULTIPLE_APIC_DESCRIPTION_TABLE) |
| */ |
| #define ACPI_SUB_HEADER_DEF /* Common ACPI sub-structure header */\ |
| u8 type; \ |
| u8 length; |
| |
| /* Sub-structures for MADT */ |
| |
| struct madt_processor_apic |
| { |
| ACPI_SUB_HEADER_DEF |
| u8 processor_id; /* ACPI processor id */ |
| u8 local_apic_id; /* Processor's local APIC id */ |
| u32 flags; |
| } PACKED; |
| |
| struct madt_io_apic |
| { |
| ACPI_SUB_HEADER_DEF |
| u8 io_apic_id; /* I/O APIC ID */ |
| u8 reserved; /* Reserved - must be zero */ |
| u32 address; /* APIC physical address */ |
| u32 interrupt; /* Global system interrupt where INTI |
| * lines start */ |
| } PACKED; |
| |
| struct madt_intsrcovr { |
| ACPI_SUB_HEADER_DEF |
| u8 bus; |
| u8 source; |
| u32 gsi; |
| u16 flags; |
| } PACKED; |
| |
| struct madt_local_nmi { |
| ACPI_SUB_HEADER_DEF |
| u8 processor_id; /* ACPI processor id */ |
| u16 flags; /* MPS INTI flags */ |
| u8 lint; /* Local APIC LINT# */ |
| } PACKED; |
| |
| /* |
| * HPET Description Table |
| */ |
| #define HPET_SIGNATURE 0x54455048 // HPET |
| struct acpi_20_hpet { |
| ACPI_TABLE_HEADER_DEF /* ACPI common table header */ |
| u32 timer_block_id; |
| struct acpi_20_generic_address addr; |
| u8 hpet_number; |
| u16 min_tick; |
| u8 page_protect; |
| } PACKED; |
| |
| /* |
| * SRAT (NUMA topology description) table |
| */ |
| |
| #define SRAT_SIGNATURE 0x54415253 // SRAT |
| struct system_resource_affinity_table |
| { |
| ACPI_TABLE_HEADER_DEF |
| u32 reserved1; |
| u32 reserved2[2]; |
| } PACKED; |
| |
| #define SRAT_PROCESSOR 0 |
| #define SRAT_MEMORY 1 |
| |
| struct srat_processor_affinity |
| { |
| ACPI_SUB_HEADER_DEF |
| u8 proximity_lo; |
| u8 local_apic_id; |
| u32 flags; |
| u8 local_sapic_eid; |
| u8 proximity_hi[3]; |
| u32 reserved; |
| } PACKED; |
| |
| struct srat_memory_affinity |
| { |
| ACPI_SUB_HEADER_DEF |
| u8 proximity[4]; |
| u16 reserved1; |
| u64 base_addr; |
| u64 range_length; |
| u32 reserved2; |
| u32 flags; |
| u32 reserved3[2]; |
| } PACKED; |
| |
| /* PCI fw r3.0 MCFG table. */ |
| /* Subtable */ |
| struct acpi_mcfg_allocation { |
| u64 address; /* Base address, processor-relative */ |
| u16 pci_segment; /* PCI segment group number */ |
| u8 start_bus_number; /* Starting PCI Bus number */ |
| u8 end_bus_number; /* Final PCI Bus number */ |
| u32 reserved; |
| } PACKED; |
| |
| #define MCFG_SIGNATURE 0x4746434d // MCFG |
| struct acpi_table_mcfg { |
| ACPI_TABLE_HEADER_DEF; |
| u8 reserved[8]; |
| struct acpi_mcfg_allocation allocation[0]; |
| } PACKED; |
| |
| #endif // acpi.h |
