forked from Minki/linux
b229cf92ee
Removed a device initialization optimization introduced in 20051216 where the _STA method was not run unless an _INI was also present for the same device. This optimization could cause problems because it could allow _INI methods to be run within a not-present device subtree (If a not-present device had no _INI, _STA would not be run, the not-present status would not be discovered, and the children of the device would be incorrectly traversed.) Implemented a new _STA optimization where namespace subtrees that do not contain _INI are identified and ignored during device initialization. Selectively running _STA can significantly improve boot time on large machines (with assistance from Len Brown.) Implemented support for the device initialization case where the returned _STA flags indicate a device not-present but functioning. In this case, _INI is not run, but the device children are examined for presence, as per the ACPI specification. Implemented an additional change to the IndexField support in order to conform to MS behavior. The value written to the Index Register is not simply a byte offset, it is a byte offset in units of the access width of the parent Index Field. (Fiodor Suietov) Defined and deployed a new OSL interface, acpi_os_validate_address(). This interface is called during the creation of all AML operation regions, and allows the host OS to exert control over what addresses it will allow the AML code to access. Operation Regions whose addresses are disallowed will cause a runtime exception when they are actually accessed (will not affect or abort table loading.) Defined and deployed a new OSL interface, acpi_os_validate_interface(). This interface allows the host OS to match the various "optional" interface/behavior strings for the _OSI predefined control method as appropriate (with assistance from Bjorn Helgaas.) Restructured and corrected various problems in the exception handling code paths within DsCallControlMethod and DsTerminateControlMethod in dsmethod (with assistance from Takayoshi Kochi.) Modified the Linux source converter to ignore quoted string literals while converting identifiers from mixed to lower case. This will correct problems with the disassembler and other areas where such strings must not be modified. The ACPI_FUNCTION_* macros no longer require quotes around the function name. This allows the Linux source converter to convert the names, now that the converter ignores quoted strings. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
205 lines
7.2 KiB
C
205 lines
7.2 KiB
C
/******************************************************************************
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*
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* Name: acconfig.h - Global configuration constants
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2006, R. Byron Moore
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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 _ACCONFIG_H
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#define _ACCONFIG_H
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/******************************************************************************
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*
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* Configuration options
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*
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*****************************************************************************/
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/*
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* ACPI_DEBUG_OUTPUT - This switch enables all the debug facilities of the
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* ACPI subsystem. This includes the DEBUG_PRINT output
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* statements. When disabled, all DEBUG_PRINT
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* statements are compiled out.
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*
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* ACPI_APPLICATION - Use this switch if the subsystem is going to be run
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* at the application level.
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*
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*/
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/* Current ACPICA subsystem version in YYYYMMDD format */
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#define ACPI_CA_VERSION 0x20060421
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/*
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* OS name, used for the _OS object. The _OS object is essentially obsolete,
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* but there is a large base of ASL/AML code in existing machines that check
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* for the string below. The use of this string usually guarantees that
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* the ASL will execute down the most tested code path. Also, there is some
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* code that will not execute the _OSI method unless _OS matches the string
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* below. Therefore, change this string at your own risk.
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*/
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#define ACPI_OS_NAME "Microsoft Windows NT"
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/* Maximum objects in the various object caches */
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#define ACPI_MAX_STATE_CACHE_DEPTH 96 /* State objects */
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#define ACPI_MAX_PARSE_CACHE_DEPTH 96 /* Parse tree objects */
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#define ACPI_MAX_EXTPARSE_CACHE_DEPTH 96 /* Parse tree objects */
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#define ACPI_MAX_OBJECT_CACHE_DEPTH 96 /* Interpreter operand objects */
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#define ACPI_MAX_NAMESPACE_CACHE_DEPTH 96 /* Namespace objects */
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/*
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* Should the subsystem abort the loading of an ACPI table if the
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* table checksum is incorrect?
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*/
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#define ACPI_CHECKSUM_ABORT FALSE
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/******************************************************************************
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*
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* Subsystem Constants
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*
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*****************************************************************************/
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/* Version of ACPI supported */
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#define ACPI_CA_SUPPORT_LEVEL 3
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/* Maximum count for a semaphore object */
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#define ACPI_MAX_SEMAPHORE_COUNT 256
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/* Maximum object reference count (detects object deletion issues) */
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#define ACPI_MAX_REFERENCE_COUNT 0x800
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/* Size of cached memory mapping for system memory operation region */
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#define ACPI_SYSMEM_REGION_WINDOW_SIZE 4096
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/* owner_id tracking. 8 entries allows for 255 owner_ids */
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#define ACPI_NUM_OWNERID_MASKS 8
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/******************************************************************************
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*
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* ACPI Specification constants (Do not change unless the specification changes)
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*
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*****************************************************************************/
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/* Number of distinct GPE register blocks and register width */
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#define ACPI_MAX_GPE_BLOCKS 2
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#define ACPI_GPE_REGISTER_WIDTH 8
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/* Method info (in WALK_STATE), containing local variables and argumetns */
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#define ACPI_METHOD_NUM_LOCALS 8
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#define ACPI_METHOD_MAX_LOCAL 7
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#define ACPI_METHOD_NUM_ARGS 7
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#define ACPI_METHOD_MAX_ARG 6
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/* Length of _HID, _UID, _CID, and UUID values */
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#define ACPI_DEVICE_ID_LENGTH 0x09
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#define ACPI_MAX_CID_LENGTH 48
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#define ACPI_UUID_LENGTH 16
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/*
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* Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
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*/
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#define ACPI_OBJ_NUM_OPERANDS 8
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#define ACPI_OBJ_MAX_OPERAND 7
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/* Names within the namespace are 4 bytes long */
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#define ACPI_NAME_SIZE 4
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#define ACPI_PATH_SEGMENT_LENGTH 5 /* 4 chars for name + 1 char for separator */
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#define ACPI_PATH_SEPARATOR '.'
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/* Constants used in searching for the RSDP in low memory */
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#define ACPI_EBDA_PTR_LOCATION 0x0000040E /* Physical Address */
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#define ACPI_EBDA_PTR_LENGTH 2
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#define ACPI_EBDA_WINDOW_SIZE 1024
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#define ACPI_HI_RSDP_WINDOW_BASE 0x000E0000 /* Physical Address */
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#define ACPI_HI_RSDP_WINDOW_SIZE 0x00020000
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#define ACPI_RSDP_SCAN_STEP 16
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/* Operation regions */
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#define ACPI_NUM_PREDEFINED_REGIONS 8
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#define ACPI_USER_REGION_BEGIN 0x80
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/* Maximum space_ids for Operation Regions */
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#define ACPI_MAX_ADDRESS_SPACE 255
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/* Array sizes. Used for range checking also */
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#define ACPI_MAX_MATCH_OPCODE 5
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#if 0
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#define ACPI_NUM_ACCESS_TYPES 6
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#define ACPI_NUM_UPDATE_RULES 3
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#define ACPI_NUM_LOCK_RULES 2
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#define ACPI_NUM_FIELD_NAMES 2
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#define ACPI_NUM_OPCODES 256
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#endif
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/* RSDP checksums */
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#define ACPI_RSDP_CHECKSUM_LENGTH 20
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#define ACPI_RSDP_XCHECKSUM_LENGTH 36
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/* SMBus bidirectional buffer size */
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#define ACPI_SMBUS_BUFFER_SIZE 34
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/******************************************************************************
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*
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* ACPI AML Debugger
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*
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*****************************************************************************/
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#define ACPI_DEBUGGER_MAX_ARGS 8 /* Must be max method args + 1 */
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#define ACPI_DEBUGGER_COMMAND_PROMPT '-'
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#define ACPI_DEBUGGER_EXECUTE_PROMPT '%'
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#endif /* _ACCONFIG_H */
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