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5fde244d39
The ACPI FADT table includes an ASPM control bit. If the bit is set, do not enable ASPM since it may indicate that the platform doesn't actually support the feature. Tested-by: Jack Howarth <howarth@bromo.msbb.uc.edu> Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
297 lines
14 KiB
C
297 lines
14 KiB
C
/******************************************************************************
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*
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* Name: actbl.h - Basic ACPI Table Definitions
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2008, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#ifndef __ACTBL_H__
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#define __ACTBL_H__
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/*
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* Values for description table header signatures. Useful because they make
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* it more difficult to inadvertently type in the wrong signature.
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*/
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#define ACPI_SIG_DSDT "DSDT" /* Differentiated System Description Table */
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#define ACPI_SIG_FADT "FACP" /* Fixed ACPI Description Table */
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#define ACPI_SIG_FACS "FACS" /* Firmware ACPI Control Structure */
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#define ACPI_SIG_PSDT "PSDT" /* Persistent System Description Table */
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#define ACPI_SIG_RSDP "RSD PTR " /* Root System Description Pointer */
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#define ACPI_SIG_RSDT "RSDT" /* Root System Description Table */
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#define ACPI_SIG_XSDT "XSDT" /* Extended System Description Table */
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#define ACPI_SIG_SSDT "SSDT" /* Secondary System Description Table */
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#define ACPI_RSDP_NAME "RSDP" /* Short name for RSDP, not signature */
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/*
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* All tables and structures must be byte-packed to match the ACPI
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* specification, since the tables are provided by the system BIOS
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*/
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#pragma pack(1)
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/*
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* These are the ACPI tables that are directly consumed by the subsystem.
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*
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* The RSDP and FACS do not use the common ACPI table header. All other ACPI
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* tables use the header.
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*
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* Note about bitfields: The u8 type is used for bitfields in ACPI tables.
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* This is the only type that is even remotely portable. Anything else is not
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* portable, so do not use any other bitfield types.
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*/
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/*******************************************************************************
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*
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* ACPI Table Header. This common header is used by all tables except the
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* RSDP and FACS. The define is used for direct inclusion of header into
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* other ACPI tables
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*
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******************************************************************************/
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struct acpi_table_header {
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char signature[ACPI_NAME_SIZE]; /* ASCII table signature */
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u32 length; /* Length of table in bytes, including this header */
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u8 revision; /* ACPI Specification minor version # */
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u8 checksum; /* To make sum of entire table == 0 */
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char oem_id[ACPI_OEM_ID_SIZE]; /* ASCII OEM identification */
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char oem_table_id[ACPI_OEM_TABLE_ID_SIZE]; /* ASCII OEM table identification */
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u32 oem_revision; /* OEM revision number */
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char asl_compiler_id[ACPI_NAME_SIZE]; /* ASCII ASL compiler vendor ID */
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u32 asl_compiler_revision; /* ASL compiler version */
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};
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/*
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* GAS - Generic Address Structure (ACPI 2.0+)
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*
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* Note: Since this structure is used in the ACPI tables, it is byte aligned.
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* If misalignment is not supported, access to the Address field must be
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* performed with care.
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*/
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struct acpi_generic_address {
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u8 space_id; /* Address space where struct or register exists */
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u8 bit_width; /* Size in bits of given register */
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u8 bit_offset; /* Bit offset within the register */
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u8 access_width; /* Minimum Access size (ACPI 3.0) */
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u64 address; /* 64-bit address of struct or register */
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};
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/*******************************************************************************
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*
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* RSDP - Root System Description Pointer (Signature is "RSD PTR ")
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*
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******************************************************************************/
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struct acpi_table_rsdp {
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char signature[8]; /* ACPI signature, contains "RSD PTR " */
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u8 checksum; /* ACPI 1.0 checksum */
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char oem_id[ACPI_OEM_ID_SIZE]; /* OEM identification */
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u8 revision; /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
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u32 rsdt_physical_address; /* 32-bit physical address of the RSDT */
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u32 length; /* Table length in bytes, including header (ACPI 2.0+) */
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u64 xsdt_physical_address; /* 64-bit physical address of the XSDT (ACPI 2.0+) */
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u8 extended_checksum; /* Checksum of entire table (ACPI 2.0+) */
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u8 reserved[3]; /* Reserved, must be zero */
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};
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#define ACPI_RSDP_REV0_SIZE 20 /* Size of original ACPI 1.0 RSDP */
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/*******************************************************************************
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*
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* RSDT/XSDT - Root System Description Tables
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*
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******************************************************************************/
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struct acpi_table_rsdt {
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struct acpi_table_header header; /* Common ACPI table header */
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u32 table_offset_entry[1]; /* Array of pointers to ACPI tables */
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};
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struct acpi_table_xsdt {
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struct acpi_table_header header; /* Common ACPI table header */
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u64 table_offset_entry[1]; /* Array of pointers to ACPI tables */
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};
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/*******************************************************************************
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*
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* FACS - Firmware ACPI Control Structure (FACS)
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*
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******************************************************************************/
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struct acpi_table_facs {
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char signature[4]; /* ASCII table signature */
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u32 length; /* Length of structure, in bytes */
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u32 hardware_signature; /* Hardware configuration signature */
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u32 firmware_waking_vector; /* 32-bit physical address of the Firmware Waking Vector */
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u32 global_lock; /* Global Lock for shared hardware resources */
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u32 flags;
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u64 xfirmware_waking_vector; /* 64-bit version of the Firmware Waking Vector (ACPI 2.0+) */
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u8 version; /* Version of this table (ACPI 2.0+) */
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u8 reserved[31]; /* Reserved, must be zero */
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};
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/* Flag macros */
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#define ACPI_FACS_S4_BIOS_PRESENT (1) /* 00: S4BIOS support is present */
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/* Global lock flags */
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#define ACPI_GLOCK_PENDING 0x01 /* 00: Pending global lock ownership */
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#define ACPI_GLOCK_OWNED 0x02 /* 01: Global lock is owned */
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/*******************************************************************************
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*
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* FADT - Fixed ACPI Description Table (Signature "FACP")
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*
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******************************************************************************/
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/* Fields common to all versions of the FADT */
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struct acpi_table_fadt {
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struct acpi_table_header header; /* Common ACPI table header */
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u32 facs; /* 32-bit physical address of FACS */
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u32 dsdt; /* 32-bit physical address of DSDT */
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u8 model; /* System Interrupt Model (ACPI 1.0) - not used in ACPI 2.0+ */
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u8 preferred_profile; /* Conveys preferred power management profile to OSPM. */
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u16 sci_interrupt; /* System vector of SCI interrupt */
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u32 smi_command; /* 32-bit Port address of SMI command port */
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u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */
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u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */
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u8 S4bios_request; /* Value to write to SMI CMD to enter S4BIOS state */
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u8 pstate_control; /* Processor performance state control */
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u32 pm1a_event_block; /* 32-bit Port address of Power Mgt 1a Event Reg Blk */
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u32 pm1b_event_block; /* 32-bit Port address of Power Mgt 1b Event Reg Blk */
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u32 pm1a_control_block; /* 32-bit Port address of Power Mgt 1a Control Reg Blk */
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u32 pm1b_control_block; /* 32-bit Port address of Power Mgt 1b Control Reg Blk */
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u32 pm2_control_block; /* 32-bit Port address of Power Mgt 2 Control Reg Blk */
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u32 pm_timer_block; /* 32-bit Port address of Power Mgt Timer Ctrl Reg Blk */
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u32 gpe0_block; /* 32-bit Port address of General Purpose Event 0 Reg Blk */
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u32 gpe1_block; /* 32-bit Port address of General Purpose Event 1 Reg Blk */
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u8 pm1_event_length; /* Byte Length of ports at pm1x_event_block */
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u8 pm1_control_length; /* Byte Length of ports at pm1x_control_block */
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u8 pm2_control_length; /* Byte Length of ports at pm2_control_block */
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u8 pm_timer_length; /* Byte Length of ports at pm_timer_block */
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u8 gpe0_block_length; /* Byte Length of ports at gpe0_block */
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u8 gpe1_block_length; /* Byte Length of ports at gpe1_block */
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u8 gpe1_base; /* Offset in GPE number space where GPE1 events start */
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u8 cst_control; /* Support for the _CST object and C States change notification */
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u16 C2latency; /* Worst case HW latency to enter/exit C2 state */
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u16 C3latency; /* Worst case HW latency to enter/exit C3 state */
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u16 flush_size; /* Processor's memory cache line width, in bytes */
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u16 flush_stride; /* Number of flush strides that need to be read */
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u8 duty_offset; /* Processor duty cycle index in processor's P_CNT reg */
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u8 duty_width; /* Processor duty cycle value bit width in P_CNT register. */
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u8 day_alarm; /* Index to day-of-month alarm in RTC CMOS RAM */
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u8 month_alarm; /* Index to month-of-year alarm in RTC CMOS RAM */
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u8 century; /* Index to century in RTC CMOS RAM */
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u16 boot_flags; /* IA-PC Boot Architecture Flags. See Table 5-10 for description */
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u8 reserved; /* Reserved, must be zero */
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u32 flags; /* Miscellaneous flag bits (see below for individual flags) */
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struct acpi_generic_address reset_register; /* 64-bit address of the Reset register */
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u8 reset_value; /* Value to write to the reset_register port to reset the system */
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u8 reserved4[3]; /* Reserved, must be zero */
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u64 Xfacs; /* 64-bit physical address of FACS */
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u64 Xdsdt; /* 64-bit physical address of DSDT */
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struct acpi_generic_address xpm1a_event_block; /* 64-bit Extended Power Mgt 1a Event Reg Blk address */
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struct acpi_generic_address xpm1b_event_block; /* 64-bit Extended Power Mgt 1b Event Reg Blk address */
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struct acpi_generic_address xpm1a_control_block; /* 64-bit Extended Power Mgt 1a Control Reg Blk address */
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struct acpi_generic_address xpm1b_control_block; /* 64-bit Extended Power Mgt 1b Control Reg Blk address */
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struct acpi_generic_address xpm2_control_block; /* 64-bit Extended Power Mgt 2 Control Reg Blk address */
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struct acpi_generic_address xpm_timer_block; /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */
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struct acpi_generic_address xgpe0_block; /* 64-bit Extended General Purpose Event 0 Reg Blk address */
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struct acpi_generic_address xgpe1_block; /* 64-bit Extended General Purpose Event 1 Reg Blk address */
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};
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/* FADT flags */
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#define ACPI_FADT_WBINVD (1) /* 00: The wbinvd instruction works properly */
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#define ACPI_FADT_WBINVD_FLUSH (1<<1) /* 01: The wbinvd flushes but does not invalidate */
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#define ACPI_FADT_C1_SUPPORTED (1<<2) /* 02: All processors support C1 state */
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#define ACPI_FADT_C2_MP_SUPPORTED (1<<3) /* 03: C2 state works on MP system */
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#define ACPI_FADT_POWER_BUTTON (1<<4) /* 04: Power button is handled as a generic feature */
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#define ACPI_FADT_SLEEP_BUTTON (1<<5) /* 05: Sleep button is handled as a generic feature, or not present */
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#define ACPI_FADT_FIXED_RTC (1<<6) /* 06: RTC wakeup stat not in fixed register space */
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#define ACPI_FADT_S4_RTC_WAKE (1<<7) /* 07: RTC wakeup stat not possible from S4 */
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#define ACPI_FADT_32BIT_TIMER (1<<8) /* 08: tmr_val is 32 bits 0=24-bits */
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#define ACPI_FADT_DOCKING_SUPPORTED (1<<9) /* 09: Docking supported */
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#define ACPI_FADT_RESET_REGISTER (1<<10) /* 10: System reset via the FADT RESET_REG supported */
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#define ACPI_FADT_SEALED_CASE (1<<11) /* 11: No internal expansion capabilities and case is sealed */
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#define ACPI_FADT_HEADLESS (1<<12) /* 12: No local video capabilities or local input devices */
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#define ACPI_FADT_SLEEP_TYPE (1<<13) /* 13: Must execute native instruction after writing SLP_TYPx register */
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#define ACPI_FADT_PCI_EXPRESS_WAKE (1<<14) /* 14: System supports PCIEXP_WAKE (STS/EN) bits (ACPI 3.0) */
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#define ACPI_FADT_PLATFORM_CLOCK (1<<15) /* 15: OSPM should use platform-provided timer (ACPI 3.0) */
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#define ACPI_FADT_S4_RTC_VALID (1<<16) /* 16: Contents of RTC_STS valid after S4 wake (ACPI 3.0) */
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#define ACPI_FADT_REMOTE_POWER_ON (1<<17) /* 17: System is compatible with remote power on (ACPI 3.0) */
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#define ACPI_FADT_APIC_CLUSTER (1<<18) /* 18: All local APICs must use cluster model (ACPI 3.0) */
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#define ACPI_FADT_APIC_PHYSICAL (1<<19) /* 19: All local x_aPICs must use physical dest mode (ACPI 3.0) */
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/*
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* FADT Prefered Power Management Profiles
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*/
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enum acpi_prefered_pm_profiles {
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PM_UNSPECIFIED = 0,
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PM_DESKTOP = 1,
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PM_MOBILE = 2,
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PM_WORKSTATION = 3,
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PM_ENTERPRISE_SERVER = 4,
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PM_SOHO_SERVER = 5,
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PM_APPLIANCE_PC = 6
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};
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/* FADT Boot Arch Flags */
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#define BAF_LEGACY_DEVICES 0x0001
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#define BAF_8042_KEYBOARD_CONTROLLER 0x0002
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#define BAF_MSI_NOT_SUPPORTED 0x0008
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#define BAF_PCIE_ASPM_CONTROL 0x0010
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#define FADT2_REVISION_ID 3
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#define FADT2_MINUS_REVISION_ID 2
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/* Reset to default packing */
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#pragma pack()
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#define ACPI_FADT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_table_fadt, f)
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/*
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* Get the remaining ACPI tables
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*/
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#include <acpi/actbl1.h>
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#endif /* __ACTBL_H__ */
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