forked from KolibriOS/kolibrios
9969 lines
418 KiB
Plaintext
9969 lines
418 KiB
Plaintext
----------------------------------------
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28 May 2010. Summary of changes for version 20100528:
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This release is available at www.acpica.org/downloads
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Note: The ACPI 4.0a specification was released on April 5, 2010 and is
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available at www.acpi.info. This is primarily an errata release.
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1) ACPI CA Core Subsystem:
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Undefined ACPI tables: We are looking for the definitions for the following
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ACPI tables that have been seen in the field: ATKG, IEIT, GSCI.
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Implemented support to enable multi-byte transfers for Embedded Controller
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(EC) operation regions. Previously, the maximum data size passed to the EC
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operation region handler was a single byte. There are often EC Fields larger
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than one byte that need to be transferred, and it is useful for the EC driver
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to lock these as a single transaction. This change enables single transfers
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larger than 8 bits. This effectively changes the access to the EC space from
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ByteAcc to AnyAcc, and will probably require changes to the host OS Embedded
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Controller driver to enable 16/32/64/256-bit transfers in addition to 8-bit
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transfers. Alexey Starikovskiy, Lin Ming
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Implemented a performance enhancement for namespace search and access. This
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change enhances the performance of namespace searches and walks by adding a
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backpointer to the parent in each namespace node. On large namespaces, this
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change can improve overall ACPI performance by up to 9X. Adding a pointer to
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each namespace node increases the overall size of the internal namespace by
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about 5%, since each namespace entry usually consists of both a namespace
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node and an ACPI operand object. However, this is the first growth of the
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namespace in ten years. ACPICA bugzilla 817. Alexey Starikovskiy.
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Implemented a performance optimization that reduces the number of namespace
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walks. On control method exit, only walk the namespace if the method is known
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to have created namespace objects outside of its local scope. Previously, the
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entire namespace was traversed on each control method exit. This change can
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improve overall ACPI performance by up to 3X. Alexey Starikovskiy, Bob Moore.
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Added support to truncate I/O addresses to 16 bits for Windows compatibility.
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Some ASL code has been seen in the field that inadvertently has bits set
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above bit 15. This feature is optional and is enabled if the BIOS requests
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any Windows OSI strings. It can also be enabled by the host OS. Matthew
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Garrett, Bob Moore.
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Added support to limit the maximum time for the ASL Sleep() operator. To
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prevent accidental deep sleeps, limit the maximum time that Sleep() will
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actually sleep. Configurable, the default maximum is two seconds. ACPICA
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bugzilla 854.
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Added run-time validation support for the _WDG and_WED Microsoft predefined
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methods. These objects are defined by "Windows Instrumentation", and are not
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part of the ACPI spec. ACPICA BZ 860.
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Expanded all statistic counters used during namespace and device
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initialization from 16 to 32 bits in order to support very large namespaces.
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Replaced all instances of %d in printf format specifiers with %u since nearly
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all integers in ACPICA are unsigned.
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Fixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly returned
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as AE_NO_HANDLER.
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Example Code and Data Size: These are the sizes for the OS-independent
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acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
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debug version of the code includes the debug output trace mechanism and has a
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much larger code and data size.
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Previous Release:
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Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total
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Debug Version: 164.2K Code, 51.5K Data, 215.7K Total
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Current Release:
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Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total
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Debug Version: 164.1K Code, 51.5K Data, 215.6K Total
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2) iASL Compiler/Disassembler and Tools:
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iASL: Added compiler support for the _WDG and_WED Microsoft predefined
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methods. These objects are defined by "Windows Instrumentation", and are not
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part of the ACPI spec. ACPICA BZ 860.
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AcpiExec: added option to disable the memory tracking mechanism. The -dt
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option will disable the tracking mechanism, which improves performance
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considerably.
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AcpiExec: Restructured the command line options into -d (disable) and -e
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(enable) options.
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----------------------------------------
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28 April 2010. Summary of changes for version 20100428:
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1) ACPI CA Core Subsystem:
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Implemented GPE support for dynamically loaded ACPI tables. For all GPEs,
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including FADT-based and GPE Block Devices, execute any _PRW methods in the
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new table, and process any _Lxx/_Exx GPE methods in the new table. Any
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runtime GPE that is referenced by an _Lxx/_Exx method in the new table is
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immediately enabled. Handles the FADT-defined GPEs as well as GPE Block
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Devices. Provides compatibility with other ACPI implementations. Two new
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files added, evgpeinit.c and evgpeutil.c. ACPICA BZ 833. Lin Ming, Bob Moore.
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Fixed a regression introduced in version 20100331 within the table manager
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where initial table loading could fail. This was introduced in the fix for
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AcpiReallocateRootTable. Also, renamed some of fields in the table manager
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data structures to clarify their meaning and use.
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Fixed a possible allocation overrun during internal object copy in
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AcpiUtCopySimpleObject. The original code did not correctly handle the case
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where the object to be copied was a namespace node. Lin Ming. ACPICA BZ 847.
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Updated the allocation dump routine, AcpiUtDumpAllocation and fixed a
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possible access beyond end-of-allocation. Also, now fully validate descriptor
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(size and type) before output. Lin Ming, Bob Moore. ACPICA BZ 847
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Example Code and Data Size: These are the sizes for the OS-independent
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acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
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debug version of the code includes the debug output trace mechanism and has a
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much larger code and data size.
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Previous Release:
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Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total
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Debug Version: 163.5K Code, 51.3K Data, 214.8K Total
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Current Release:
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Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total
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Debug Version: 164.2K Code, 51.5K Data, 215.7K Total
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2) iASL Compiler/Disassembler and Tools:
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iASL: Implemented Min/Max/Len/Gran validation for address resource
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descriptors. This change implements validation for the address fields that
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are common to all address-type resource descriptors. These checks are
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implemented: Checks for valid Min/Max, length within the Min/Max window,
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valid granularity, Min/Max a multiple of granularity, and _MIF/_MAF as per
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table 6-40 in the ACPI 4.0a specification. Also split the large aslrestype1.c
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and aslrestype2.c files into five new files. ACPICA BZ 840.
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iASL: Added support for the _Wxx predefined names. This support was missing
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and these names were not recognized by the compiler as valid predefined
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names. ACPICA BZ 851.
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iASL: Added an error for all predefined names that are defined to return no
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value and thus must be implemented as Control Methods. These include all of
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the _Lxx, _Exx, _Wxx, and _Qxx names, as well as some other miscellaneous
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names such as _DIS, _INI, _IRC, _OFF, _ON, and _PSx. ACPICA BZ 850, 856.
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iASL: Implemented the -ts option to emit hex AML data in ASL format, as an
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ASL Buffer. Allows ACPI tables to be easily included within ASL files, to be
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dynamically loaded via the Load() operator. Also cleaned up output for the -
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ta and -tc options. ACPICA BZ 853.
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Tests: Added a new file with examples of extended iASL error checking.
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Demonstrates the advanced error checking ability of the iASL compiler.
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Available at tests/misc/badcode.asl.
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----------------------------------------
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31 March 2010. Summary of changes for version 20100331:
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1) ACPI CA Core Subsystem:
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Completed a major update for the GPE support in order to improve support for
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shared GPEs and to simplify both host OS and ACPICA code. Added a reference
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count mechanism to support shared GPEs that require multiple device drivers.
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Several external interfaces have changed. One external interface has been
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removed. One new external interface was added. Most of the GPE external
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interfaces now use the GPE spinlock instead of the events mutex (and the
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Flags parameter for many GPE interfaces has been removed.) See the updated
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ACPICA Programmer Reference for details. Matthew Garrett, Bob Moore, Rafael
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Wysocki. ACPICA BZ 831.
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Changed:
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AcpiEnableGpe, AcpiDisableGpe, AcpiClearGpe, AcpiGetGpeStatus
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Removed:
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AcpiSetGpeType
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New:
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AcpiSetGpe
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Implemented write support for DataTable operation regions. These regions are
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defined via the DataTableRegion() operator. Previously, only read support was
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implemented. The ACPI specification allows DataTableRegions to be read/write,
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however.
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Implemented a new subsystem option to force a copy of the DSDT to local
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memory. Optionally copy the entire DSDT to local memory (instead of simply
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mapping it.) There are some (albeit very rare) BIOSs that corrupt or replace
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the original DSDT, creating the need for this option. Default is FALSE, do
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not copy the DSDT.
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Implemented detection of a corrupted or replaced DSDT. This change adds
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support to detect a DSDT that has been corrupted and/or replaced from outside
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the OS (by firmware). This is typically catastrophic for the system, but has
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been seen on some machines. Once this problem has been detected, the DSDT
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copy option can be enabled via system configuration. Lin Ming, Bob Moore.
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Fixed two problems with AcpiReallocateRootTable during the root table copy.
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When copying the root table to the new allocation, the length used was
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incorrect. The new size was used instead of the current table size, meaning
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too much data was copied. Also, the count of available slots for ACPI tables
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was not set correctly. Alexey Starikovskiy, Bob Moore.
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Example Code and Data Size: These are the sizes for the OS-independent
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acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
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debug version of the code includes the debug output trace mechanism and has a
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much larger code and data size.
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Previous Release:
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Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total
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Debug Version: 163.4K Code, 51.1K Data, 214.5K Total
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Current Release:
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Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total
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Debug Version: 163.5K Code, 51.3K Data, 214.8K Total
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2) iASL Compiler/Disassembler and Tools:
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iASL: Implement limited typechecking for values returned from predefined
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control methods. The type of any returned static (unnamed) object is now
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validated. For example, Return(1). ACPICA BZ 786.
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iASL: Fixed a predefined name object verification regression. Fixes a problem
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introduced in version 20100304. An error is incorrectly generated if a
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predefined name is declared as a static named object with a value defined
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using the keywords "Zero", "One", or "Ones". Lin Ming.
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iASL: Added Windows 7 support for the -g option (get local ACPI tables) by
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reducing the requested registry access rights. ACPICA BZ 842.
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Disassembler: fixed a possible fault when generating External() statements.
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Introduced in commit ae7d6fd: Properly handle externals with parent-prefix
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(carat). Fixes a string length allocation calculation. Lin Ming.
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----------------------------------------
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04 March 2010. Summary of changes for version 20100304:
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1) ACPI CA Core Subsystem:
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Fixed a possible problem with the AML Mutex handling function
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AcpiExReleaseMutex where the function could fault under the very rare
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condition when the interpreter has blocked, the interpreter lock is released,
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the interpreter is then reentered via the same thread, and attempts to
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acquire an AML mutex that was previously acquired. FreeBSD report 140979. Lin
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Ming.
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Implemented additional configuration support for the AML "Debug Object".
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Output from the debug object can now be enabled via a global variable,
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AcpiGbl_EnableAmlDebugObject. This will assist with remote machine debugging.
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This debug output is now available in the release version of ACPICA instead
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of just the debug version. Also, the entire debug output module can now be
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configured out of the ACPICA build if desired. One new file added,
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executer/exdebug.c. Lin Ming, Bob Moore.
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Added header support for the ACPI MCHI table (Management Controller Host
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Interface Table). This table was added in ACPI 4.0, but the defining document
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has only recently become available.
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Standardized output of integer values for ACPICA warnings/errors. Always use
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0x prefix for hex output, always use %u for unsigned integer decimal output.
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Affects ACPI_INFO, ACPI_ERROR, ACPI_EXCEPTION, and ACPI_WARNING (about 400
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invocations.) These invocations were converted from the original
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ACPI_DEBUG_PRINT invocations and were not consistent. ACPICA BZ 835.
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Example Code and Data Size: These are the sizes for the OS-independent
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acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
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debug version of the code includes the debug output trace mechanism and has a
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much larger code and data size.
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Previous Release:
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Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total
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Debug Version: 163.5K Code, 50.9K Data, 214.4K Total
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Current Release:
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Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total
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Debug Version: 163.4K Code, 51.1K Data, 214.5K Total
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2) iASL Compiler/Disassembler and Tools:
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iASL: Implemented typechecking support for static (non-control method)
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predefined named objects that are declared with the Name() operator. For
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example, the type of this object is now validated to be of type Integer:
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Name(_BBN, 1). This change migrates the compiler to using the core predefined
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name table instead of maintaining a local version. Added a new file,
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aslpredef.c. ACPICA BZ 832.
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Disassembler: Added support for the ACPI 4.0 MCHI table.
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----------------------------------------
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21 January 2010. Summary of changes for version 20100121:
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1) ACPI CA Core Subsystem:
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Added the 2010 copyright to all module headers and signons. This affects
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virtually every file in the ACPICA core subsystem, the iASL compiler, the
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tools/utilities, and the test suites.
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Implemented a change to the AcpiGetDevices interface to eliminate unnecessary
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invocations of the _STA method. In the case where a specific _HID is
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requested, do not run _STA until a _HID match is found. This eliminates
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potentially dozens of _STA calls during a search for a particular device/HID,
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which in turn can improve boot times. ACPICA BZ 828. Lin Ming.
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Implemented an additional repair for predefined method return values. Attempt
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to repair unexpected NULL elements within returned Package objects. Create an
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Integer of value zero, a NULL String, or a zero-length Buffer as appropriate.
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ACPICA BZ 818. Lin Ming, Bob Moore.
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Removed the obsolete ACPI_INTEGER data type. This type was introduced as the
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code was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with
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64-bit AML integers). It is now obsolete and this change removes it from the
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ACPICA code base, replaced by UINT64. The original typedef has been retained
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for now for compatibility with existing device driver code. ACPICA BZ 824.
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Removed the unused UINT32_STRUCT type, and the obsolete Integer64 field in
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the parse tree object.
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Added additional warning options for the gcc-4 generation. Updated the source
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accordingly. This includes some code restructuring to eliminate unreachable
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code, elimination of some gotos, elimination of unused return values, some
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additional casting, and removal of redundant declarations.
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Example Code and Data Size: These are the sizes for the OS-independent
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acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
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debug version of the code includes the debug output trace mechanism and has a
|
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much larger code and data size.
|
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Previous Release:
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Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total
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Debug Version: 163.4K Code, 50.8K Data, 214.2K Total
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Current Release:
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Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total
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Debug Version: 163.5K Code, 50.9K Data, 214.4K Total
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2) iASL Compiler/Disassembler and Tools:
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No functional changes for this release.
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----------------------------------------
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14 December 2009. Summary of changes for version 20091214:
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1) ACPI CA Core Subsystem:
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Enhanced automatic data type conversions for predefined name repairs. This
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change expands the automatic repairs/conversions for predefined name return
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values to make Integers, Strings, and Buffers fully interchangeable. Also, a
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Buffer can be converted to a Package of Integers if necessary. The nsrepair.c
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module was completely restructured. Lin Ming, Bob Moore.
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Implemented automatic removal of null package elements during predefined name
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repairs. This change will automatically remove embedded and trailing NULL
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package elements from returned package objects that are defined to contain a
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variable number of sub-packages. The driver is then presented with a package
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with no null elements to deal with. ACPICA BZ 819.
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Implemented a repair for the predefined _FDE and _GTM names. The expected
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return value for both names is a Buffer of 5 DWORDs. This repair fixes two
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possible problems (both seen in the field), where a package of integers is
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returned, or a buffer of BYTEs is returned. With assistance from Jung-uk Kim.
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Implemented additional module-level code support. This change will properly
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execute module-level code that is not at the root of the namespace (under a
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Device object, etc.). Now executes the code within the current scope instead
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of the root. ACPICA BZ 762. Lin Ming.
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Fixed possible mutex acquisition errors when running _REG methods. Fixes a
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problem where mutex errors can occur when running a _REG method that is in
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the same scope as a method-defined operation region or an operation region
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under a module-level IF block. This type of code is rare, so the problem has
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not been seen before. ACPICA BZ 826. Lin Ming, Bob Moore.
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Fixed a possible memory leak during module-level code execution. An object
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could be leaked for each block of executed module-level code if the
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interpreter slack mode is enabled This change deletes any implicitly returned
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object from the module-level code block. Lin Ming.
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Removed messages for successful predefined repair(s). The repair mechanism
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was considered too wordy. Now, messages are only unconditionally emitted if
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the return object cannot be repaired. Existing messages for successful
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repairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827.
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Example Code and Data Size: These are the sizes for the OS-independent
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acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total
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Debug Version: 162.7K Code, 50.8K Data, 213.5K Total
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Current Release:
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Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total
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Debug Version: 163.4K Code, 50.8K Data, 214.2K Total
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2) iASL Compiler/Disassembler and Tools:
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iASL: Fixed a regression introduced in 20091112 where intermediate .SRC files
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were no longer automatically removed at the termination of the compile.
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acpiexec: Implemented the -f option to specify default region fill value.
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This option specifies the value used to initialize buffers that simulate
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operation regions. Default value is zero. Useful for debugging problems that
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depend on a specific initial value for a region or field.
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----------------------------------------
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12 November 2009. Summary of changes for version 20091112:
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1) ACPI CA Core Subsystem:
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Implemented a post-order callback to AcpiWalkNamespace. The existing
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interface only has a pre-order callback. This change adds an additional
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parameter for a post-order callback which will be more useful for bus scans.
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ACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference.
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Modified the behavior of the operation region memory mapping cache for
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SystemMemory. Ensure that the memory mappings created for operation regions
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do not cross 4K page boundaries. Crossing a page boundary while mapping
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regions can cause kernel warnings on some hosts if the pages have different
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attributes. Such regions are probably BIOS bugs, and this is the workaround.
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Linux BZ 14445. Lin Ming.
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Implemented an automatic repair for predefined methods that must return
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sorted lists. This change will repair (by sorting) packages returned by _ALR,
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_PSS, and _TSS. Drivers can now assume that the packages are correctly sorted
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and do not contain NULL package elements. Adds one new file,
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namespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore.
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Fixed a possible fault during predefined name validation if a return Package
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object contains NULL elements. Also adds a warning if a NULL element is
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followed by any non-null elements. ACPICA BZ 813, 814. Future enhancement may
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include repair or removal of all such NULL elements where possible.
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Implemented additional module-level executable AML code support. This change
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will execute module-level code that is not at the root of the namespace
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(under a Device object, etc.) at table load time. Module-level executable AML
|
|
code has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming.
|
|
|
|
Implemented a new internal function to create Integer objects. This function
|
|
simplifies miscellaneous object creation code. ACPICA BZ 823.
|
|
|
|
Reduced the severity of predefined repair messages, Warning to Info. Since
|
|
the object was successfully repaired, a warning is too severe. Reduced to an
|
|
info message for now. These messages may eventually be changed to debug-only.
|
|
ACPICA BZ 812.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total
|
|
Debug Version: 161.8K Code, 50.6K Data, 212.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total
|
|
Debug Version: 162.7K Code, 50.8K Data, 213.5K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
iASL: Implemented Switch() with While(1) so that Break works correctly. This
|
|
change correctly implements the Switch operator with a surrounding While(1)
|
|
so that the Break operator works as expected. ACPICA BZ 461. Lin Ming.
|
|
|
|
iASL: Added a message if a package initializer list is shorter than package
|
|
length. Adds a new remark for a Package() declaration if an initializer list
|
|
exists, but is shorter than the declared length of the package. Although
|
|
technically legal, this is probably a coding error and it is seen in the
|
|
field. ACPICA BZ 815. Lin Ming, Bob Moore.
|
|
|
|
iASL: Fixed a problem where the compiler could fault after the maximum number
|
|
of errors was reached (200).
|
|
|
|
acpixtract: Fixed a possible warning for pointer cast if the compiler warning
|
|
level set very high.
|
|
|
|
----------------------------------------
|
|
13 October 2009. Summary of changes for version 20091013:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where an Operation Region _REG method could be executed more
|
|
than once. If a custom address space handler is installed by the host before
|
|
the "initialize operation regions" phase of the ACPICA initialization, any
|
|
_REG methods for that address space could be executed twice. This change
|
|
fixes the problem. ACPICA BZ 427. Lin Ming.
|
|
|
|
Fixed a possible memory leak for the Scope() ASL operator. When the exact
|
|
invocation of "Scope(\)" is executed (change scope to root), one internal
|
|
operand object was leaked. Lin Ming.
|
|
|
|
Implemented a run-time repair for the _MAT predefined method. If the _MAT
|
|
return value is defined as a Field object in the AML, and the field
|
|
size is less than or equal to the default width of an integer (32 or 64),_MAT
|
|
can incorrectly return an Integer instead of a Buffer. ACPICA now
|
|
automatically repairs this problem. ACPICA BZ 810.
|
|
|
|
Implemented a run-time repair for the _BIF and _BIX predefined methods. The
|
|
"OEM Information" field is often incorrectly returned as an Integer with
|
|
value zero if the field is not supported by the platform. This is due to an
|
|
ambiguity in the ACPI specification. The field should always be a string.
|
|
ACPICA now automatically repairs this problem by returning a NULL string
|
|
within the returned Package. ACPICA BZ 807.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total
|
|
Debug Version: 161.7K Code, 50.9K Data, 212.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total
|
|
Debug Version: 161.8K Code, 50.6K Data, 212.4K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Disassembler: Fixed a problem where references to external symbols that
|
|
contained one or more parent-prefixes (carats) were not handled correctly,
|
|
possibly causing a fault. ACPICA BZ 806. Lin Ming.
|
|
|
|
Disassembler: Restructured the code so that all functions that handle
|
|
external symbols are in a single module. One new file is added,
|
|
common/dmextern.c.
|
|
|
|
AML Debugger: Added a max count argument for the Batch command (which
|
|
executes multiple predefined methods within the namespace.)
|
|
|
|
iASL: Updated the compiler documentation (User Reference.) Available at
|
|
http://www.acpica.org/documentation/. ACPICA BZ 750.
|
|
|
|
AcpiXtract: Updated for Lint and other formatting changes. Close all open
|
|
files.
|
|
|
|
----------------------------------------
|
|
03 September 2009. Summary of changes for version 20090903:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
For Windows Vista compatibility, added the automatic execution of an _INI
|
|
method located at the namespace root (\_INI). This method is executed at
|
|
table load time. This support is in addition to the automatic execution of
|
|
\_SB._INI. Lin Ming.
|
|
|
|
Fixed a possible memory leak in the interpreter for AML package objects if
|
|
the package initializer list is longer than the defined size of the package.
|
|
This apparently can only happen if the BIOS changes the package size on the
|
|
fly (seen in a _PSS object), as ASL compilers do not allow this. The
|
|
interpreter will truncate the package to the defined size (and issue an error
|
|
message), but previously could leave the extra objects undeleted if they were
|
|
pre-created during the argument processing (such is the case if the package
|
|
consists of a number of sub-packages as in the _PSS.) ACPICA BZ 805.
|
|
|
|
Fixed a problem seen when a Buffer or String is stored to itself via ASL.
|
|
This has been reported in the field. Previously, ACPICA would zero out the
|
|
buffer/string. Now, the operation is treated as a noop. Provides Windows
|
|
compatibility. ACPICA BZ 803. Lin Ming.
|
|
|
|
Removed an extraneous error message for ASL constructs of the form
|
|
Store(LocalX,LocalX) when LocalX is uninitialized. These curious statements
|
|
are seen in many BIOSs and are once again treated as NOOPs and no error is
|
|
emitted when they are encountered. ACPICA BZ 785.
|
|
|
|
Fixed an extraneous warning message if a _DSM reserved method returns a
|
|
Package object. _DSM can return any type of object, so validation on the
|
|
return type cannot be performed. ACPICA BZ 802.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total
|
|
Debug Version: 161.6K Code, 50.9K Data, 212.5K Total
|
|
Current Release:
|
|
Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total
|
|
Debug Version: 161.7K Code, 50.9K Data, 212.6K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
iASL: Fixed a problem with the use of the Alias operator and Resource
|
|
Templates. The correct alias is now constructed and no error is emitted.
|
|
ACPICA BZ 738.
|
|
|
|
iASL: Implemented the -I option to specify additional search directories for
|
|
include files. Allows multiple additional search paths for include files.
|
|
Directories are searched in the order specified on the command line (after
|
|
the local directory is searched.) ACPICA BZ 800.
|
|
|
|
iASL: Fixed a problem where the full pathname for include files was not
|
|
emitted for warnings/errors. This caused the IDE support to not work
|
|
properly. ACPICA BZ 765.
|
|
|
|
iASL: Implemented the -@ option to specify a Windows-style response file
|
|
containing additional command line options. ACPICA BZ 801.
|
|
|
|
AcpiExec: Added support to load multiple AML files simultaneously (such as a
|
|
DSDT and multiple SSDTs). Also added support for wildcards within the AML
|
|
pathname. These features allow all machine tables to be easily loaded and
|
|
debugged together. ACPICA BZ 804.
|
|
|
|
Disassembler: Added missing support for disassembly of HEST table Error Bank
|
|
subtables.
|
|
|
|
----------------------------------------
|
|
30 July 2009. Summary of changes for version 20090730:
|
|
|
|
The ACPI 4.0 implementation for ACPICA is complete with this release.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
ACPI 4.0: Added header file support for all new and changed ACPI tables.
|
|
Completely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new
|
|
for ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT,
|
|
EINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There
|
|
have been some ACPI 4.0 changes to other existing tables. Split the large
|
|
actbl1.h header into the existing actbl2.h header. ACPICA BZ 774.
|
|
|
|
ACPI 4.0: Implemented predefined name validation for all new names. There are
|
|
31 new names in ACPI 4.0. The predefined validation module was split into two
|
|
files. The new file is namespace/nsrepair.c. ACPICA BZ 770.
|
|
|
|
Implemented support for so-called "module-level executable code". This is
|
|
executable AML code that exists outside of any control method and is intended
|
|
to be executed at table load time. Although illegal since ACPI 2.0, this type
|
|
of code still exists and is apparently still being created. Blocks of this
|
|
code are now detected and executed as intended. Currently, the code blocks
|
|
must exist under either an If, Else, or While construct; these are the
|
|
typical cases seen in the field. ACPICA BZ 762. Lin Ming.
|
|
|
|
Implemented an automatic dynamic repair for predefined names that return
|
|
nested Package objects. This applies to predefined names that are defined to
|
|
return a variable-length Package of sub-packages. If the number of sub-
|
|
packages is one, BIOS code is occasionally seen that creates a simple single
|
|
package with no sub-packages. This code attempts to fix the problem by
|
|
wrapping a new package object around the existing package. These methods can
|
|
be repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ
|
|
790.
|
|
|
|
Fixed a regression introduced in 20090625 for the AcpiGetDevices interface.
|
|
The _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA
|
|
BZ 793.
|
|
|
|
Fixed a problem with AcpiReset where the reset would silently fail if the
|
|
register was one of the protected I/O ports. AcpiReset now bypasses the port
|
|
validation mechanism. This may eventually be driven into the AcpiRead/Write
|
|
interfaces.
|
|
|
|
Fixed a regression related to the recent update of the AcpiRead/Write
|
|
interfaces. A sleep/suspend could fail if the optional PM2 Control register
|
|
does not exist during an attempt to write the Bus Master Arbitration bit.
|
|
(However, some hosts already delete the code that writes this bit, and the
|
|
code may in fact be obsolete at this date.) ACPICA BZ 799.
|
|
|
|
Fixed a problem where AcpiTerminate could fault if inadvertently called twice
|
|
in succession. ACPICA BZ 795.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total
|
|
Debug Version: 160.5K Code, 50.6K Data, 211.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total
|
|
Debug Version: 161.6K Code, 50.9K Data, 212.5K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
ACPI 4.0: Implemented disassembler support for all new ACPI tables and
|
|
changes to existing tables. ACPICA BZ 775.
|
|
|
|
----------------------------------------
|
|
25 June 2009. Summary of changes for version 20090625:
|
|
|
|
The ACPI 4.0 Specification was released on June 16 and is available at
|
|
www.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will
|
|
continue for the next few releases.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
ACPI 4.0: Implemented interpreter support for the IPMI operation region
|
|
address space. Includes support for bi-directional data buffers and an IPMI
|
|
address space handler (to be installed by an IPMI device driver.) ACPICA BZ
|
|
773. Lin Ming.
|
|
|
|
ACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes
|
|
support in both the header files and the disassembler.
|
|
|
|
Completed a major update for the AcpiGetObjectInfo external interface.
|
|
Changes include:
|
|
- Support for variable, unlimited length HID, UID, and CID strings.
|
|
- Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.)
|
|
- Call the _SxW power methods on behalf of a device object.
|
|
- Determine if a device is a PCI root bridge.
|
|
- Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO.
|
|
These changes will require an update to all callers of this interface. See
|
|
the updated ACPICA Programmer Reference for details. One new source file has
|
|
been added - utilities/utids.c. ACPICA BZ 368, 780.
|
|
|
|
Updated the AcpiRead and AcpiWrite external interfaces to support 64-bit
|
|
transfers. The Value parameter has been extended from 32 bits to 64 bits in
|
|
order to support new ACPI 4.0 tables. These changes will require an update to
|
|
all callers of these interfaces. See the ACPICA Programmer Reference for
|
|
details. ACPICA BZ 768.
|
|
|
|
Fixed several problems with AcpiAttachData. The handler was not invoked when
|
|
the host node was deleted. The data sub-object was not automatically deleted
|
|
when the host node was deleted. The interface to the handler had an unused
|
|
parameter, this was removed. ACPICA BZ 778.
|
|
|
|
Enhanced the function that dumps ACPI table headers. All non-printable
|
|
characters in the string fields are now replaced with '?' (Signature, OemId,
|
|
OemTableId, and CompilerId.) ACPI tables with non-printable characters in
|
|
these fields are occasionally seen in the field. ACPICA BZ 788.
|
|
|
|
Fixed a problem with predefined method repair code where the code that
|
|
attempts to repair/convert an object of incorrect type is only executed on
|
|
the first time the predefined method is called. The mechanism that disables
|
|
warnings on subsequent calls was interfering with the repair mechanism.
|
|
ACPICA BZ 781.
|
|
|
|
Fixed a possible memory leak in the predefined validation/repair code when a
|
|
buffer is automatically converted to an expected string object.
|
|
|
|
Removed obsolete 16-bit files from the distribution and from the current git
|
|
tree head. ACPICA BZ 776.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total
|
|
Debug Version: 158.9K Code, 50.0K Data, 208.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total
|
|
Debug Version: 160.5K Code, 50.6K Data, 211.1K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
ACPI 4.0: iASL and Disassembler - implemented support for the new IPMI
|
|
operation region keyword. ACPICA BZ 771, 772. Lin Ming.
|
|
|
|
ACPI 4.0: iASL - implemented compile-time validation support for all new
|
|
predefined names and control methods (31 total). ACPICA BZ 769.
|
|
|
|
----------------------------------------
|
|
21 May 2009. Summary of changes for version 20090521:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Disabled the preservation of the SCI enable bit in the PM1 control register.
|
|
The SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be
|
|
a "preserved" bit - "OSPM always preserves this bit position", section
|
|
4.7.3.2.1. However, some machines fail if this bit is in fact preserved
|
|
because the bit needs to be explicitly set by the OS as a workaround. No
|
|
machines fail if the bit is not preserved. Therefore, ACPICA no longer
|
|
attempts to preserve this bit.
|
|
|
|
Fixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or
|
|
incorrectly formed _PRT package could cause a fault. Added validation to
|
|
ensure that each package element is actually a sub-package.
|
|
|
|
Implemented a new interface to install or override a single control method,
|
|
AcpiInstallMethod. This interface is useful when debugging in order to repair
|
|
an existing method or to install a missing method without having to override
|
|
the entire ACPI table. See the ACPICA Programmer Reference for use and
|
|
examples. Lin Ming, Bob Moore.
|
|
|
|
Fixed several reference count issues with the DdbHandle object that is
|
|
created from a Load or LoadTable operator. Prevent premature deletion of the
|
|
object. Also, mark the object as invalid once the table has been unloaded.
|
|
This is needed because the handle itself may not be deleted after the table
|
|
unload, depending on whether it has been stored in a named object by the
|
|
caller. Lin Ming.
|
|
|
|
Fixed a problem with Mutex Sync Levels. Fixed a problem where if multiple
|
|
mutexes of the same sync level are acquired but then not released in strict
|
|
opposite order, the internally maintained Current Sync Level becomes confused
|
|
and can cause subsequent execution errors. ACPICA BZ 471.
|
|
|
|
Changed the allowable release order for ASL mutex objects. The ACPI 4.0
|
|
specification has been changed to make the SyncLevel for mutex objects more
|
|
useful. When releasing a mutex, the SyncLevel of the mutex must now be the
|
|
same as the current sync level. This makes more sense than the previous rule
|
|
(SyncLevel less than or equal). This change updates the code to match the
|
|
specification.
|
|
|
|
Fixed a problem with the local version of the AcpiOsPurgeCache function. The
|
|
(local) cache must be locked during all cache object deletions. Andrew
|
|
Baumann.
|
|
|
|
Updated the Load operator to use operation region interfaces. This replaces
|
|
direct memory mapping with region access calls. Now, all region accesses go
|
|
through the installed region handler as they should.
|
|
|
|
Simplified and optimized the NsGetNextNode function. Reduced parameter count
|
|
and reduced code for this frequently used function.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total
|
|
Debug Version: 158.0K Code, 49.9K Data, 207.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total
|
|
Debug Version: 158.9K Code, 50.0K Data, 208.9K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Disassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems
|
|
with sub-table disassembly and handling invalid sub-tables. Attempt recovery
|
|
after an invalid sub-table ID.
|
|
|
|
----------------------------------------
|
|
22 April 2009. Summary of changes for version 20090422:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a compatibility issue with the recently released I/O port protection
|
|
mechanism. For windows compatibility, 1) On a port protection violation,
|
|
simply ignore the request and do not return an exception (allow the control
|
|
method to continue execution.) 2) If only part of the request overlaps a
|
|
protected port, read/write the individual ports that are not protected. Linux
|
|
BZ 13036. Lin Ming
|
|
|
|
Enhanced the execution of the ASL/AML BreakPoint operator so that it actually
|
|
breaks into the AML debugger if the debugger is present. This matches the
|
|
ACPI-defined behavior.
|
|
|
|
Fixed several possible warnings related to the use of the configurable
|
|
ACPI_THREAD_ID. This type can now be configured as either an integer or a
|
|
pointer with no warnings. Also fixes several warnings in printf-like
|
|
statements for the 64-bit build when the type is configured as a pointer.
|
|
ACPICA BZ 766, 767.
|
|
|
|
Fixed a number of possible warnings when compiling with gcc 4+ (depending on
|
|
warning options.) Examples include printf formats, aliasing, unused globals,
|
|
missing prototypes, missing switch default statements, use of non-ANSI
|
|
library functions, use of non-ANSI constructs. See generate/unix/Makefile for
|
|
a list of warning options used with gcc 3 and 4. ACPICA BZ 735.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total
|
|
Debug Version: 157.7K Code, 49.9K Data, 207.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total
|
|
Debug Version: 158.0K Code, 49.9K Data, 207.9K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
iASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on
|
|
the 64-bit build.
|
|
|
|
iASL: Fixed a problem where the Unix/Linux versions of the compiler could not
|
|
correctly digest Windows/DOS formatted files (with CR/LF).
|
|
|
|
iASL: Added a new option for "quiet mode" (-va) that produces only the
|
|
compilation summary, not individual errors and warnings. Useful for large
|
|
batch compilations.
|
|
|
|
AcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex
|
|
timeout that can be used to detect hang conditions during execution of AML
|
|
code (includes both internal semaphores and AML-defined mutexes and events.)
|
|
|
|
Added new makefiles for the generation of acpica in a generic unix-like
|
|
environment. These makefiles are intended to generate the acpica tools and
|
|
utilities from the original acpica git source tree structure.
|
|
|
|
Test Suites: Updated and cleaned up the documentation files. Updated the
|
|
copyrights to 2009, affecting all source files. Use the new version of iASL
|
|
with quiet mode. Increased the number of available semaphores in the Windows
|
|
OSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added
|
|
an alternate implementation of the semaphore timeout to allow aslts to
|
|
execute fully on Cygwin.
|
|
|
|
----------------------------------------
|
|
20 March 2009. Summary of changes for version 20090320:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a possible race condition between AcpiWalkNamespace and dynamic table
|
|
unloads. Added a reader/writer locking mechanism to allow multiple concurrent
|
|
namespace walks (readers), but block a dynamic table unload until it can gain
|
|
exclusive write access to the namespace. This fixes a problem where a table
|
|
unload could (possibly catastrophically) delete the portion of the namespace
|
|
that is currently being examined by a walk. Adds a new file, utlock.c, that
|
|
implements the reader/writer lock mechanism. ACPICA BZ 749.
|
|
|
|
Fixed a regression introduced in version 20090220 where a change to the FADT
|
|
handling could cause the ACPICA subsystem to access non-existent I/O ports.
|
|
|
|
Modified the handling of FADT register and table (FACS/DSDT) addresses. The
|
|
FADT can contain both 32-bit and 64-bit versions of these addresses.
|
|
Previously, the 64-bit versions were favored, meaning that if both 32 and 64
|
|
versions were valid, but not equal, the 64-bit version was used. This was
|
|
found to cause some machines to fail. Now, in this case, the 32-bit version
|
|
is used instead. This now matches the Windows behavior.
|
|
|
|
Implemented a new mechanism to protect certain I/O ports. Provides Microsoft
|
|
compatibility and protects the standard PC I/O ports from access via AML
|
|
code. Adds a new file, hwvalid.c
|
|
|
|
Fixed a possible extraneous warning message from the FADT support. The
|
|
message warns of a 32/64 length mismatch between the legacy and GAS
|
|
definitions for a register.
|
|
|
|
Removed the obsolete AcpiOsValidateAddress OSL interface. This interface is
|
|
made obsolete by the port protection mechanism above. It was previously used
|
|
to validate the entire address range of an operation region, which could be
|
|
incorrect if the range included illegal ports, but fields within the
|
|
operation region did not actually access those ports. Validation is now
|
|
performed on a per-field basis instead of the entire region.
|
|
|
|
Modified the handling of the PM1 Status Register ignored bit (bit 11.)
|
|
Ignored bits must be "preserved" according to the ACPI spec. Usually, this
|
|
means a read/modify/write when writing to the register. However, for status
|
|
registers, writing a one means clear the event. Writing a zero means preserve
|
|
the event (do not clear.) This behavior is clarified in the ACPI 4.0 spec,
|
|
and the ACPICA code now simply always writes a zero to the ignored bit.
|
|
|
|
Modified the handling of ignored bits for the PM1 A/B Control Registers. As
|
|
per the ACPI specification, for the control registers, preserve
|
|
(read/modify/write) all bits that are defined as either reserved or ignored.
|
|
|
|
Updated the handling of write-only bits in the PM1 A/B Control Registers.
|
|
When reading the register, zero the write-only bits as per the ACPI spec.
|
|
ACPICA BZ 443. Lin Ming.
|
|
|
|
Removed "Linux" from the list of supported _OSI strings. Linux no longer
|
|
wants to reply true to this request. The Windows strings are the only paths
|
|
through the AML that are tested and known to work properly.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total
|
|
Debug Version: 156.9K Code, 49.8K Data, 206.7K Total
|
|
Current Release:
|
|
Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total
|
|
Debug Version: 157.7K Code, 49.9K Data, 207.6K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Acpiexec: Split the large aeexec.c file into two new files, aehandlers.c and
|
|
aetables.c
|
|
|
|
----------------------------------------
|
|
20 February 2009. Summary of changes for version 20090220:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Optimized the ACPI register locking. Removed locking for reads from the ACPI
|
|
bit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is
|
|
not required when reading the single-bit registers. The
|
|
AcpiGetRegisterUnlocked function is no longer needed and has been removed.
|
|
This will improve performance for reads on these registers. ACPICA BZ 760.
|
|
|
|
Fixed the parameter validation for AcpiRead/Write. Now return
|
|
AE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if
|
|
the register has an address of zero. Previously, these cases simply returned
|
|
AE_OK. For optional registers such as PM1B status/enable/control, the caller
|
|
should check for a valid register address before calling. ACPICA BZ 748.
|
|
|
|
Renamed the external ACPI bit register access functions. Renamed
|
|
AcpiGetRegister and AcpiSetRegister to clarify the purpose of these
|
|
functions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister.
|
|
Also, restructured the code for these functions by simplifying the code path
|
|
and condensing duplicate code to reduce code size.
|
|
|
|
Added new functions to transparently handle the possibly split PM1 A/B
|
|
registers. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions
|
|
now handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ
|
|
746.
|
|
|
|
Added a function to handle the PM1 control registers, AcpiHwWritePm1Control.
|
|
This function writes both of the PM1 control registers (A/B). These registers
|
|
are different than the PM1 A/B status and enable registers in that different
|
|
values can be written to the A/B registers. Most notably, the SLP_TYP bits
|
|
can be different, as per the values returned from the _Sx predefined methods.
|
|
|
|
Removed an extra register write within AcpiHwClearAcpiStatus. This function
|
|
was writing an optional PM1B status register twice. The existing call to the
|
|
low-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B
|
|
register. ACPICA BZ 751.
|
|
|
|
Split out the PM1 Status registers from the FADT. Added new globals for these
|
|
registers (A/B), similar to the way the PM1 Enable registers are handled.
|
|
Instead of overloading the FADT Event Register blocks. This makes the code
|
|
clearer and less prone to error.
|
|
|
|
Fixed the warning message for when the platform contains too many ACPI tables
|
|
for the default size of the global root table data structure. The calculation
|
|
for the truncation value was incorrect.
|
|
|
|
Removed the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this
|
|
obsolete macro, since it is now a simple reference to ->common.type. There
|
|
were about 150 invocations of the macro across 41 files. ACPICA BZ 755.
|
|
|
|
Removed the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as
|
|
TYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to
|
|
simply SLEEP_TYPE. ACPICA BZ 754.
|
|
|
|
Conditionally compile the AcpiSetFirmwareWakingVector64 function. This
|
|
function is only needed on 64-bit host operating systems and is thus not
|
|
included for 32-bit hosts.
|
|
|
|
Debug output: print the input and result for invocations of the _OSI reserved
|
|
control method via the ACPI_LV_INFO debug level. Also, reduced some of the
|
|
verbosity of this debug level. Len Brown.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total
|
|
Debug Version: 157.3K Code, 49.8K Data, 207.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total
|
|
Debug Version: 156.9K Code, 49.8K Data, 206.7K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Disassembler: Decode the FADT PM_Profile field. Emit ascii names for the
|
|
various legal performance profiles.
|
|
|
|
----------------------------------------
|
|
23 January 2009. Summary of changes for version 20090123:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Added the 2009 copyright to all module headers and signons. This affects
|
|
virtually every file in the ACPICA core subsystem, the iASL compiler, and
|
|
the tools/utilities.
|
|
|
|
Implemented a change to allow the host to override any ACPI table, including
|
|
dynamically loaded tables. Previously, only the DSDT could be replaced by the
|
|
host. With this change, the AcpiOsTableOverride interface is called for each
|
|
table found in the RSDT/XSDT during ACPICA initialization, and also whenever
|
|
a table is dynamically loaded via the AML Load operator.
|
|
|
|
Updated FADT flag definitions, especially the Boot Architecture flags.
|
|
|
|
Debugger: For the Find command, automatically pad the input ACPI name with
|
|
underscores if the name is shorter than 4 characters. This enables a match
|
|
with the actual namespace entry which is itself padded with underscores.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total
|
|
Debug Version: 157.1K Code, 49.7K Data, 206.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total
|
|
Debug Version: 157.3K Code, 49.8K Data, 207.1K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Fix build error under Bison-2.4.
|
|
|
|
Dissasembler: Enhanced FADT support. Added decoding of the Boot Architecture
|
|
flags. Now decode all flags, regardless of the FADT version. Flag output
|
|
includes the FADT version which first defined each flag.
|
|
|
|
The iASL -g option now dumps the RSDT to a file (in addition to the FADT and
|
|
DSDT). Windows only.
|
|
|
|
----------------------------------------
|
|
04 December 2008. Summary of changes for version 20081204:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
The ACPICA Programmer Reference has been completely updated and revamped for
|
|
this release. This includes updates to the external interfaces, OSL
|
|
interfaces, the overview sections, and the debugger reference.
|
|
|
|
Several new ACPICA interfaces have been implemented and documented in the
|
|
programmer reference:
|
|
AcpiReset - Writes the reset value to the FADT-defined reset register.
|
|
AcpiDisableAllGpes - Disable all available GPEs.
|
|
AcpiEnableAllRuntimeGpes - Enable all available runtime GPEs.
|
|
AcpiGetGpeDevice - Get the GPE block device associated with a GPE.
|
|
AcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs.
|
|
AcpiRead - Low-level read ACPI register (was HwLowLevelRead.)
|
|
AcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.)
|
|
|
|
Most of the public ACPI hardware-related interfaces have been moved to a new
|
|
file, components/hardware/hwxface.c
|
|
|
|
Enhanced the FADT parsing and low-level ACPI register access: The ACPI
|
|
register lengths within the FADT are now used, and the low level ACPI
|
|
register access no longer hardcodes the ACPI register lengths. Given that
|
|
there may be some risk in actually trusting the FADT register lengths, a run-
|
|
time option was added to fall back to the default hardcoded lengths if the
|
|
FADT proves to contain incorrect values - UseDefaultRegisterWidths. This
|
|
option is set to true for now, and a warning is issued if a suspicious FADT
|
|
register length is overridden with the default value.
|
|
|
|
Fixed a reference count issue in NsRepairObject. This problem was introduced
|
|
in version 20081031 as part of a fix to repair Buffer objects within
|
|
Packages. Lin Ming.
|
|
|
|
Added semaphore support to the Linux/Unix application OS-services layer
|
|
(OSL). ACPICA BZ 448. Lin Ming.
|
|
|
|
Added the ACPI_MUTEX_TYPE configuration option to select whether mutexes will
|
|
be implemented in the OSL, or will binary semaphores be used instead.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total
|
|
Debug Version: 156.4K Code, 49.4K Data, 205.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total
|
|
Debug Version: 157.1K Code, 49.7K Data, 206.8K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
iASL: Completed the '-e' option to include additional ACPI tables in order to
|
|
aid with disassembly and External statement generation. ACPICA BZ 742. Lin
|
|
Ming.
|
|
|
|
iASL: Removed the "named object in while loop" error. The compiler cannot
|
|
determine how many times a loop will execute. ACPICA BZ 730.
|
|
|
|
Disassembler: Implemented support for FADT revision 2 (MS extension). ACPICA
|
|
BZ 743.
|
|
|
|
Disassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG).
|
|
|
|
----------------------------------------
|
|
31 October 2008. Summary of changes for version 20081031:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Restructured the ACPICA header files into public/private. acpi.h now includes
|
|
only the "public" acpica headers. All other acpica headers are "private" and
|
|
should not be included by acpica users. One new file, accommon.h is used to
|
|
include the commonly used private headers for acpica code generation. Future
|
|
plans include moving all private headers to a new subdirectory.
|
|
|
|
Implemented an automatic Buffer->String return value conversion for
|
|
predefined ACPI methods. For these methods (such as _BIF), added automatic
|
|
conversion for return objects that are required to be a String, but a Buffer
|
|
was found instead. This can happen when reading string battery data from an
|
|
operation region, because it used to be difficult to convert the data from
|
|
buffer to string from within the ASL. Ensures that the host OS is provided
|
|
with a valid null-terminated string. Linux BZ 11822.
|
|
|
|
Updated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector
|
|
into two: one for the 32-bit vector, another for the 64-bit vector. This is
|
|
required because the host OS must setup the wake much differently for each
|
|
vector (real vs. protected mode, etc.) and the interface itself should not be
|
|
deciding which vector to use. Also, eliminated the GetFirmwareWakingVector
|
|
interface, as it served no purpose (only the firmware reads the vector, OS
|
|
only writes the vector.) ACPICA BZ 731.
|
|
|
|
Implemented a mechanism to escape infinite AML While() loops. Added a loop
|
|
counter to force exit from AML While loops if the count becomes too large.
|
|
This can occur in poorly written AML when the hardware does not respond
|
|
within a while loop and the loop does not implement a timeout. The maximum
|
|
loop count is configurable. A new exception code is returned when a loop is
|
|
broken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore.
|
|
|
|
Optimized the execution of AML While loops. Previously, a control state
|
|
object was allocated and freed for each execution of the loop. The
|
|
optimization is to simply reuse the control state for each iteration. This
|
|
speeds up the raw loop execution time by about 5%.
|
|
|
|
Enhanced the implicit return mechanism. For Windows compatibility, return an
|
|
implicit integer of value zero for methods that contain no executable code.
|
|
Such methods are seen in the field as stubs (presumably), and can cause
|
|
drivers to fail if they expect a return value. Lin Ming.
|
|
|
|
Allow multiple backslashes as root prefixes in namepaths. In a fully
|
|
qualified namepath, allow multiple backslash prefixes. This can happen (and
|
|
is seen in the field) because of the use of a double-backslash in strings
|
|
(since backslash is the escape character) causing confusion. ACPICA BZ 739
|
|
Lin Ming.
|
|
|
|
Emit a warning if two different FACS or DSDT tables are discovered in the
|
|
FADT. Checks if there are two valid but different addresses for the FACS and
|
|
DSDT within the FADT (mismatch between the 32-bit and 64-bit fields.)
|
|
|
|
Consolidated the method argument count validation code. Merged the code that
|
|
validates control method argument counts into the predefined validation
|
|
module. Eliminates possible multiple warnings for incorrect argument counts.
|
|
|
|
Implemented ACPICA example code. Includes code for ACPICA initialization,
|
|
handler installation, and calling a control method. Available at
|
|
source/tools/examples.
|
|
|
|
Added a global pointer for FACS table to simplify internal FACS access. Use
|
|
the global pointer instead of using AcpiGetTableByIndex for each FACS access.
|
|
This simplifies the code for the Global Lock and the Firmware Waking
|
|
Vector(s).
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total
|
|
Debug Version: 155.8K Code, 49.1K Data, 204.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total
|
|
Debug Version: 156.4K Code, 49.4K Data, 205.8K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
iASL: Improved disassembly of external method calls. Added the -e option to
|
|
allow the inclusion of additional ACPI tables to help with the disassembly of
|
|
method invocations and the generation of external declarations during the
|
|
disassembly. Certain external method invocations cannot be disassembled
|
|
properly without the actual declaration of the method. Use the -e option to
|
|
include the table where the external method(s) are actually declared. Most
|
|
useful for disassembling SSDTs that make method calls back to the master
|
|
DSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d
|
|
-e dsdt.aml ssdt1.aml
|
|
|
|
iASL: Fix to allow references to aliases within ASL namepaths. Fixes a
|
|
problem where the use of an alias within a namepath would result in a not
|
|
found error or cause the compiler to fault. Also now allows forward
|
|
references from the Alias operator itself. ACPICA BZ 738.
|
|
|
|
----------------------------------------
|
|
26 September 2008. Summary of changes for version 20080926:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Designed and implemented a mechanism to validate predefined ACPI methods and
|
|
objects. This code validates the predefined ACPI objects (objects whose names
|
|
start with underscore) that appear in the namespace, at the time they are
|
|
evaluated. The argument count and the type of the returned object are
|
|
validated against the ACPI specification. The purpose of this validation is
|
|
to detect problems with the BIOS-implemented predefined ACPI objects before
|
|
the results are returned to the ACPI-related drivers. Future enhancements may
|
|
include actual repair of incorrect return objects where possible. Two new
|
|
files are nspredef.c and acpredef.h.
|
|
|
|
Fixed a fault in the AML parser if a memory allocation fails during the Op
|
|
completion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492.
|
|
|
|
Fixed an issue with implicit return compatibility. This change improves the
|
|
implicit return mechanism to be more compatible with the MS interpreter. Lin
|
|
Ming, ACPICA BZ 349.
|
|
|
|
Implemented support for zero-length buffer-to-string conversions. Allow zero
|
|
length strings during interpreter buffer-to-string conversions. For example,
|
|
during the ToDecimalString and ToHexString operators, as well as implicit
|
|
conversions. Fiodor Suietov, ACPICA BZ 585.
|
|
|
|
Fixed two possible memory leaks in the error exit paths of
|
|
AcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are
|
|
similar in that they use a stack of state objects in order to eliminate
|
|
recursion. The stack must be fully unwound and deallocated if an error
|
|
occurs. Lin Ming. ACPICA BZ 383.
|
|
|
|
Removed the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global
|
|
ACPI register table. This bit does not exist and is unused. Lin Ming, Bob
|
|
Moore ACPICA BZ 442.
|
|
|
|
Removed the obsolete version number in module headers. Removed the
|
|
"$Revision" number that appeared in each module header. This version number
|
|
was useful under SourceSafe and CVS, but has no meaning under git. It is not
|
|
only incorrect, it could also be misleading.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total
|
|
Debug Version: 153.7K Code, 48.2K Data, 201.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total
|
|
Debug Version: 155.8K Code, 49.1K Data, 204.9K Total
|
|
|
|
----------------------------------------
|
|
29 August 2008. Summary of changes for version 20080829:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Completed a major cleanup of the internal ACPI_OPERAND_OBJECT of type
|
|
Reference. Changes include the elimination of cheating on the Object field
|
|
for the DdbHandle subtype, addition of a reference class field to
|
|
differentiate the various reference types (instead of an AML opcode), and the
|
|
cleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723
|
|
|
|
Reduce an error to a warning for an incorrect method argument count.
|
|
Previously aborted with an error if too few arguments were passed to a
|
|
control method via the external ACPICA interface. Now issue a warning instead
|
|
and continue. Handles the case where the method inadvertently declares too
|
|
many arguments, but does not actually use the extra ones. Applies mainly to
|
|
the predefined methods. Lin Ming. Linux BZ 11032.
|
|
|
|
Disallow the evaluation of named object types with no intrinsic value. Return
|
|
AE_TYPE for objects that have no value and therefore evaluation is undefined:
|
|
Device, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of
|
|
these types were allowed, but an exception would be generated at some point
|
|
during the evaluation. Now, the error is generated up front.
|
|
|
|
Fixed a possible memory leak in the AcpiNsGetExternalPathname function
|
|
(nsnames.c). Fixes a leak in the error exit path.
|
|
|
|
Removed the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug
|
|
levels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION
|
|
interfaces. Also added ACPI_DB_EVENTS to correspond with the existing
|
|
ACPI_LV_EVENTS.
|
|
|
|
Removed obsolete and/or unused exception codes from the acexcep.h header.
|
|
There is the possibility that certain device drivers may be affected if they
|
|
use any of these exceptions.
|
|
|
|
The ACPICA documentation has been added to the public git source tree, under
|
|
acpica/documents. Included are the ACPICA programmer reference, the iASL
|
|
compiler reference, and the changes.txt release logfile.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total
|
|
Debug Version: 153.9K Code, 48.4K Data, 202.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total
|
|
Debug Version: 153.7K Code, 48.2K Data, 201.9K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Allow multiple argument counts for the predefined _SCP method. ACPI 3.0
|
|
defines _SCP with 3 arguments. Previous versions defined it with only 1
|
|
argument. iASL now allows both definitions.
|
|
|
|
iASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero-
|
|
length subtables when disassembling ACPI tables. Also fixed a couple of
|
|
errors where a full 16-bit table type field was not extracted from the input
|
|
properly.
|
|
|
|
acpisrc: Improve comment counting mechanism for generating source code
|
|
statistics. Count first and last lines of multi-line comments as whitespace,
|
|
not comment lines. Handle Linux legal header in addition to standard acpica
|
|
header.
|
|
|
|
----------------------------------------
|
|
|
|
29 July 2008. Summary of changes for version 20080729:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fix a possible deadlock in the GPE dispatch. Remove call to
|
|
AcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt
|
|
to acquire the GPE lock but can deadlock since the GPE lock is already held
|
|
at dispatch time. This code was introduced in version 20060831 as a response
|
|
to Linux BZ 6881 and has since been removed from Linux.
|
|
|
|
Add a function to dereference returned reference objects. Examines the return
|
|
object from a call to AcpiEvaluateObject. Any Index or RefOf references are
|
|
automatically dereferenced in an attempt to return something useful (these
|
|
reference types cannot be converted into an external ACPI_OBJECT.) Provides
|
|
MS compatibility. Lin Ming, Bob Moore. Linux BZ 11105
|
|
|
|
x2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new
|
|
subtables for the MADT and one new subtable for the SRAT. Includes
|
|
disassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC
|
|
Specification, June 2008.
|
|
|
|
Additional error checking for pathname utilities. Add error check after all
|
|
calls to AcpiNsGetPathnameLength. Add status return from
|
|
AcpiNsBuildExternalPath and check after all calls. Add parameter validation
|
|
to AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar.
|
|
|
|
Return status from the global init function AcpiUtGlobalInitialize. This is
|
|
used by both the kernel subsystem and the utilities such as iASL compiler.
|
|
The function could possibly fail when the caches are initialized. Yang Yi.
|
|
|
|
Add a function to decode reference object types to strings. Created for
|
|
improved error messages.
|
|
|
|
Improve object conversion error messages. Better error messages during object
|
|
conversion from internal to the external ACPI_OBJECT. Used for external calls
|
|
to AcpiEvaluateObject.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total
|
|
Debug Version: 153.5K Code, 48.2K Data, 201.7K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total
|
|
Debug Version: 153.9K Code, 48.4K Data, 202.3K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Debugger: fix a possible hang when evaluating non-methods. Fixes a problem
|
|
introduced in version 20080701. If the object being evaluated (via execute
|
|
command) is not a method, the debugger can hang while trying to obtain non-
|
|
existent parameters.
|
|
|
|
iASL: relax error for using reserved "_T_x" identifiers. These names can
|
|
appear in a disassembled ASL file if they were emitted by the original
|
|
compiler. Instead of issuing an error or warning and forcing the user to
|
|
manually change these names, issue a remark instead.
|
|
|
|
iASL: error if named object created in while loop. Emit an error if any named
|
|
object is created within a While loop. If allowed, this code will generate a
|
|
run-time error on the second iteration of the loop when an attempt is made to
|
|
create the same named object twice. ACPICA bugzilla 730.
|
|
|
|
iASL: Support absolute pathnames for include files. Add support for absolute
|
|
pathnames within the Include operator. previously, only relative pathnames
|
|
were supported.
|
|
|
|
iASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor.
|
|
The ACPI spec requires one interrupt minimum. BZ 423
|
|
|
|
iASL: Handle a missing ResourceSource arg, with a present SourceIndex.
|
|
Handles the case for the Interrupt Resource Descriptor where
|
|
the ResourceSource argument is omitted but ResourceSourceIndex
|
|
is present. Now leave room for the Index. BZ 426
|
|
|
|
iASL: Prevent error message if CondRefOf target does not exist. Fixes cases
|
|
where an error message is emitted if the target does not exist. BZ 516
|
|
|
|
iASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option
|
|
(get ACPI tables on Windows). This was apparently broken in version 20070919.
|
|
|
|
AcpiXtract: Handle EOF while extracting data. Correctly handle the case where
|
|
the EOF happens immediately after the last table in the input file. Print
|
|
completion message. Previously, no message was displayed in this case.
|
|
|
|
----------------------------------------
|
|
01 July 2008. Summary of changes for version 20080701:
|
|
|
|
0) Git source tree / acpica.org
|
|
|
|
Fixed a problem where a git-clone from http would not transfer the entire
|
|
source tree.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one
|
|
enable bit. Now performs a read-change-write of the enable register instead
|
|
of simply writing out the cached enable mask. This will prevent inadvertent
|
|
enabling of GPEs if a rogue GPE is received during initialization (before GPE
|
|
handlers are installed.)
|
|
|
|
Implemented a copy for dynamically loaded tables. Previously, dynamically
|
|
loaded tables were simply mapped - but on some machines this memory is
|
|
corrupted after suspend. Now copy the table to a local buffer. For the
|
|
OpRegion case, added checksum verify. Use the table length from the table
|
|
header, not the region length. For the Buffer case, use the table length
|
|
also. Dennis Noordsij, Bob Moore. BZ 10734
|
|
|
|
Fixed a problem where the same ACPI table could not be dynamically loaded and
|
|
unloaded more than once. Without this change, a table cannot be loaded again
|
|
once it has been loaded/unloaded one time. The current mechanism does not
|
|
unregister a table upon an unload. During a load, if the same table is found,
|
|
this no longer returns an exception. BZ 722
|
|
|
|
Fixed a problem where the wrong descriptor length was calculated for the
|
|
EndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag
|
|
are calculated as 12 bytes long, but the actual length in the internal
|
|
descriptor is 16 because of the round-up to 8 on the 64-bit build. Reported
|
|
by Linn Crosetto. BZ 728
|
|
|
|
Fixed a possible memory leak in the Unload operator. The DdbHandle returned
|
|
by Load() did not have its reference count decremented during unload, leading
|
|
to a memory leak. Lin Ming. BZ 727
|
|
|
|
Fixed a possible memory leak when deleting thermal/processor objects. Any
|
|
associated notify handlers (and objects) were not being deleted. Fiodor
|
|
Suietov. BZ 506
|
|
|
|
Fixed the ordering of the ASCII names in the global mutex table to match the
|
|
actual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only.
|
|
Vegard Nossum. BZ 726
|
|
|
|
Enhanced the AcpiGetObjectInfo interface to return the number of required
|
|
arguments if the object is a control method. Added this call to the debugger
|
|
so the proper number of default arguments are passed to a method. This
|
|
prevents a warning when executing methods from AcpiExec.
|
|
|
|
Added a check for an invalid handle in AcpiGetObjectInfo. Return
|
|
AE_BAD_PARAMETER if input handle is invalid. BZ 474
|
|
|
|
Fixed an extraneous warning from exconfig.c on the 64-bit build.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total
|
|
Debug Version: 153.0K Code, 48.2K Data, 201.2K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total
|
|
Debug Version: 153.5K Code, 48.2K Data, 201.7K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
iASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both
|
|
resource descriptor names.
|
|
|
|
iASL: Detect invalid ASCII characters in input (windows version). Removed the
|
|
"-CF" flag from the flex compile, enables correct detection of non-ASCII
|
|
characters in the input. BZ 441
|
|
|
|
iASL: Eliminate warning when result of LoadTable is not used. Eliminate the
|
|
"result of operation not used" warning when the DDB handle returned from
|
|
LoadTable is not used. The warning is not needed. BZ 590
|
|
|
|
AcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to
|
|
pass address of table to the AML. Added option to disable OpRegion simulation
|
|
to allow creation of an OpRegion with a real address that was passed to _CFG.
|
|
All of this allows testing of the Load and Unload operators from AcpiExec.
|
|
|
|
Debugger: update tables command for unloaded tables. Handle unloaded tables
|
|
and use the standard table header output routine.
|
|
|
|
----------------------------------------
|
|
09 June 2008. Summary of changes for version 20080609:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented a workaround for reversed _PRT entries. A significant number of
|
|
BIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This
|
|
change dynamically detects and repairs this problem. Provides compatibility
|
|
with MS ACPI. BZ 6859
|
|
|
|
Simplified the internal ACPI hardware interfaces to eliminate the locking
|
|
flag parameter from Register Read/Write. Added a new external interface,
|
|
AcpiGetRegisterUnlocked.
|
|
|
|
Fixed a problem where the invocation of a GPE control method could hang. This
|
|
was a regression introduced in 20080514. The new method argument count
|
|
validation mechanism can enter an infinite loop when a GPE method is
|
|
dispatched. Problem fixed by removing the obsolete code that passed GPE block
|
|
information to the notify handler via the control method parameter pointer.
|
|
|
|
Fixed a problem where the _SST execution status was incorrectly returned to
|
|
the caller of AcpiEnterSleepStatePrep. This was a regression introduced in
|
|
20080514. _SST is optional and a NOT_FOUND exception should never be
|
|
returned. BZ 716
|
|
|
|
Fixed a problem where a deleted object could be accessed from within the AML
|
|
parser. This was a regression introduced in version 20080123 as a fix for the
|
|
Unload operator. Lin Ming. BZ 10669
|
|
|
|
Cleaned up the debug operand dump mechanism. Eliminated unnecessary operands
|
|
and eliminated the use of a negative index in a loop. Operands are now
|
|
displayed in the correct order, not backwards. This also fixes a regression
|
|
introduced in 20080514 on 64-bit systems where the elimination of
|
|
ACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715
|
|
|
|
Fixed a possible memory leak in EvPciConfigRegionSetup where the error exit
|
|
path did not delete a locally allocated structure.
|
|
|
|
Updated definitions for the DMAR and SRAT tables to synchronize with the
|
|
current specifications. Includes disassembler support.
|
|
|
|
Fixed a problem in the mutex debug code (in utmutex.c) where an incorrect
|
|
loop termination value was used. Loop terminated on iteration early, missing
|
|
one mutex. Linn Crosetto
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total
|
|
Debug Version: 153.3K Code, 48.3K Data, 201.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total
|
|
Debug Version: 153.0K Code, 48.2K Data, 201.2K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Disassembler: Implemented support for EisaId() within _CID objects. Now
|
|
disassemble integer _CID objects back to EisaId invocations, including
|
|
multiple integers within _CID packages. Includes single-step support for
|
|
debugger also.
|
|
|
|
Disassembler: Added support for DMAR and SRAT table definition changes.
|
|
|
|
----------------------------------------
|
|
14 May 2008. Summary of changes for version 20080514:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where GPEs were enabled too early during the ACPICA
|
|
initialization. This could lead to "handler not installed" errors on some
|
|
machines. Moved GPE enable until after _REG/_STA/_INI methods are run. This
|
|
ensures that all operation regions and devices throughout the namespace have
|
|
been initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916.
|
|
|
|
Implemented a change to the enter sleep code. Moved execution of the _GTS
|
|
method to just before setting sleep enable bit. The execution was moved from
|
|
AcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed
|
|
immediately before the SLP_EN bit is set, as per the ACPI specification.
|
|
Luming Yu, BZ 1653.
|
|
|
|
Implemented a fix to disable unknown GPEs (2nd version). Now always disable
|
|
the GPE, even if ACPICA thinks that that it is already disabled. It is
|
|
possible that the AML or some other code has enabled the GPE unbeknownst to
|
|
the ACPICA code.
|
|
|
|
Fixed a problem with the Field operator where zero-length fields would return
|
|
an AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL
|
|
field declarations in Field(), BankField(), and IndexField(). BZ 10606.
|
|
|
|
Implemented a fix for the Load operator, now load the table at the namespace
|
|
root. This reverts a change introduced in version 20071019. The table is now
|
|
loaded at the namespace root even though this goes against the ACPI
|
|
specification. This provides compatibility with other ACPI implementations.
|
|
The ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming.
|
|
|
|
Fixed a problem where ACPICA would not Load() tables with unusual signatures.
|
|
Now ignore ACPI table signature for Load() operator. Only "SSDT" is
|
|
acceptable to the ACPI spec, but tables are seen with OEMx and null sigs.
|
|
Therefore, signature validation is worthless. Apparently MS ACPI accepts such
|
|
signatures, ACPICA must be compatible. BZ 10454.
|
|
|
|
Fixed a possible negative array index in AcpiUtValidateException. Added NULL
|
|
fields to the exception string arrays to eliminate a -1 subtraction on the
|
|
SubStatus field.
|
|
|
|
Updated the debug tracking macros to reduce overall code and data size.
|
|
Changed ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings
|
|
instead of pointers to static strings. Jan Beulich and Bob Moore.
|
|
|
|
Implemented argument count checking in control method invocation via
|
|
AcpiEvaluateObject. Now emit an error if too few arguments, warning if too
|
|
many. This applies only to extern programmatic control method execution, not
|
|
method-to-method calls within the AML. Lin Ming.
|
|
|
|
Eliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no
|
|
longer needed, especially with the removal of 16-bit support. It was replaced
|
|
mostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on
|
|
32/64-bit platforms is required.
|
|
|
|
Added the C const qualifier for appropriate string constants -- mostly
|
|
MODULE_NAME and printf format strings. Jan Beulich.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has a
|
|
much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total
|
|
Debug Version: 159.4K Code, 64.4K Data, 223.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total
|
|
Debug Version: 153.3K Code, 48.3K Data, 201.6K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Implemented ACPI table revision ID validation in the disassembler. Zero is
|
|
always invalid. For DSDTs, the ID controls the interpreter integer width. 1
|
|
means 32-bit and this is unusual. 2 or greater is 64-bit.
|
|
|
|
----------------------------------------
|
|
21 March 2008. Summary of changes for version 20080321:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented an additional change to the GPE support in order to suppress
|
|
spurious or stray GPEs. The AcpiEvDisableGpe function will now permanently
|
|
disable incoming GPEs that are neither enabled nor disabled -- meaning that
|
|
the GPE is unknown to the system. This should prevent future interrupt floods
|
|
from that GPE. BZ 6217 (Zhang Rui)
|
|
|
|
Fixed a problem where NULL package elements were not returned to the
|
|
AcpiEvaluateObject interface correctly. The element was simply ignored
|
|
instead of returning a NULL ACPI_OBJECT package element, potentially causing
|
|
a buffer overflow and/or confusing the caller who expected a fixed number of
|
|
elements. BZ 10132 (Lin Ming, Bob Moore)
|
|
|
|
Fixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword,
|
|
Qword), Field, BankField, and IndexField operators when invoked from inside
|
|
an executing control method. In this case, these operators created namespace
|
|
nodes that were incorrectly left marked as permanent nodes instead of
|
|
temporary nodes. This could cause a problem if there is race condition
|
|
between an exiting control method and a running namespace walk. (Reported by
|
|
Linn Crosetto)
|
|
|
|
Fixed a problem where the CreateField and CreateXXXField operators would
|
|
incorrectly allow duplicate names (the name of the field) with no exception
|
|
generated.
|
|
|
|
Implemented several changes for Notify handling. Added support for new Notify
|
|
values (ACPI 2.0+) and improved the Notify debug output. Notify on
|
|
PowerResource objects is no longer allowed, as per the ACPI specification.
|
|
(Bob Moore, Zhang Rui)
|
|
|
|
All Reference Objects returned via the AcpiEvaluateObject interface are now
|
|
marked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for
|
|
NULL objects - either NULL package elements or unresolved named references.
|
|
|
|
Fixed a problem where an extraneous debug message was produced for package
|
|
objects (when debugging enabled). The message "Package List length larger
|
|
than NumElements count" is now produced in the correct case, and is now an
|
|
error message rather than a debug message. Added a debug message for the
|
|
opposite case, where NumElements is larger than the Package List (the package
|
|
will be padded out with NULL elements as per the ACPI spec.)
|
|
|
|
Implemented several improvements for the output of the ASL "Debug" object to
|
|
clarify and keep all data for a given object on one output line.
|
|
|
|
Fixed two size calculation issues with the variable-length Start Dependent
|
|
resource descriptor.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total
|
|
Debug Version: 158.9K Code, 64.0K Data, 222.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total
|
|
Debug Version: 159.4K Code, 64.4K Data, 223.8K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Fixed a problem with the use of the Switch operator where execution of the
|
|
containing method by multiple concurrent threads could cause an
|
|
AE_ALREADY_EXISTS exception. This is caused by the fact that there is no
|
|
actual Switch opcode, it must be simulated with local named temporary
|
|
variables and if/else pairs. The solution chosen was to mark any method that
|
|
uses Switch as Serialized, thus preventing multiple thread entries. BZ 469.
|
|
|
|
----------------------------------------
|
|
13 February 2008. Summary of changes for version 20080213:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented another MS compatibility design change for GPE/Notify handling.
|
|
GPEs are now cleared/enabled asynchronously to allow all pending notifies to
|
|
complete first. It is expected that the OSL will queue the enable request
|
|
behind all pending notify requests (may require changes to the local host OSL
|
|
in AcpiOsExecute). Alexey Starikovskiy.
|
|
|
|
Fixed a problem where buffer and package objects passed as arguments to a
|
|
control method via the external AcpiEvaluateObject interface could cause an
|
|
AE_AML_INTERNAL exception depending on the order and type of operators
|
|
executed by the target control method.
|
|
|
|
Fixed a problem where resource descriptor size optimization could cause a
|
|
problem when a _CRS resource template is passed to a _SRS method. The _SRS
|
|
resource template must use the same descriptors (with the same size) as
|
|
returned from _CRS. This change affects the following resource descriptors:
|
|
IRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487)
|
|
|
|
Fixed a problem where a CopyObject to RegionField, BankField, and IndexField
|
|
objects did not perform an implicit conversion as it should. These types must
|
|
retain their initial type permanently as per the ACPI specification. However,
|
|
a CopyObject to all other object types should not perform an implicit
|
|
conversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388
|
|
|
|
Fixed a problem with the AcpiGetDevices interface where the mechanism to
|
|
match device CIDs did not examine the entire list of available CIDs, but
|
|
instead aborted on the first non-matching CID. Andrew Patterson.
|
|
|
|
Fixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was
|
|
inadvertently changed to return a 16-bit value instead of a 32-bit value,
|
|
truncating the upper dword of a 64-bit value. This macro is only used to
|
|
display debug output, so no incorrect calculations were made. Also,
|
|
reimplemented the macro so that a 64-bit shift is not performed by
|
|
inefficient compilers.
|
|
|
|
Added missing va_end statements that should correspond with each va_start
|
|
statement.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total
|
|
Debug Version: 159.0K Code, 63.8K Data, 222.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total
|
|
Debug Version: 158.9K Code, 64.0K Data, 222.9K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Implemented full disassembler support for the following new ACPI tables:
|
|
BERT, EINJ, and ERST. Implemented partial disassembler support for the
|
|
complicated HEST table. These tables support the Windows Hardware Error
|
|
Architecture (WHEA).
|
|
|
|
----------------------------------------
|
|
23 January 2008. Summary of changes for version 20080123:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Added the 2008 copyright to all module headers and signons. This affects
|
|
virtually every file in the ACPICA core subsystem, the iASL compiler, and
|
|
the tools/utilities.
|
|
|
|
Fixed a problem with the SizeOf operator when used with Package and Buffer
|
|
objects. These objects have deferred execution for some arguments, and the
|
|
execution is now completed before the SizeOf is executed. This problem caused
|
|
unexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ
|
|
9558
|
|
|
|
Implemented an enhancement to the interpreter "slack mode". In the absence of
|
|
an explicit return or an implicitly returned object from the last executed
|
|
opcode, a control method will now implicitly return an integer of value 0 for
|
|
Microsoft compatibility. (Lin Ming) BZ 392
|
|
|
|
Fixed a problem with the Load operator where an exception was not returned in
|
|
the case where the table is already loaded. (Lin Ming) BZ 463
|
|
|
|
Implemented support for the use of DDBHandles as an Indexed Reference, as per
|
|
the ACPI spec. (Lin Ming) BZ 486
|
|
|
|
Implemented support for UserTerm (Method invocation) for the Unload operator
|
|
as per the ACPI spec. (Lin Ming) BZ 580
|
|
|
|
Fixed a problem with the LoadTable operator where the OemId and OemTableId
|
|
input strings could cause unexpected failures if they were shorter than the
|
|
maximum lengths allowed. (Lin Ming, Bob Moore) BZ 576
|
|
|
|
Implemented support for UserTerm (Method invocation) for the Unload operator
|
|
as per the ACPI spec. (Lin Ming) BZ 580
|
|
|
|
Implemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST,
|
|
IBFT, UEFI, WDAT. Disassembler support is forthcoming.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total
|
|
Debug Version: 158.6K Code, 63.8K Data, 222.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total
|
|
Debug Version: 159.0K Code, 63.8K Data, 222.8K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Implemented support in the disassembler for checksum validation on incoming
|
|
binary DSDTs and SSDTs. If incorrect, a message is displayed within the table
|
|
header dump at the start of the disassembly.
|
|
|
|
Implemented additional debugging information in the namespace listing file
|
|
created during compilation. In addition to the namespace hierarchy, the full
|
|
pathname to each namespace object is displayed.
|
|
|
|
Fixed a problem with the disassembler where invalid ACPI tables could cause
|
|
faults or infinite loops.
|
|
|
|
Fixed an unexpected parse error when using the optional "parameter types"
|
|
list in a control method declaration. (Lin Ming) BZ 397
|
|
|
|
Fixed a problem where two External declarations with the same name did not
|
|
cause an error (Lin Ming) BZ 509
|
|
|
|
Implemented support for full TermArgs (adding Argx, Localx and method
|
|
invocation) for the ParameterData parameter to the LoadTable operator. (Lin
|
|
Ming) BZ 583,587
|
|
|
|
----------------------------------------
|
|
19 December 2007. Summary of changes for version 20071219:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented full support for deferred execution for the TermArg string
|
|
arguments for DataTableRegion. This enables forward references and full
|
|
operand resolution for the three string arguments. Similar to OperationRegion
|
|
deferred argument execution.) Lin Ming. BZ 430
|
|
|
|
Implemented full argument resolution support for the BankValue argument to
|
|
BankField. Previously, only constants were supported, now any TermArg may be
|
|
used. Lin Ming BZ 387, 393
|
|
|
|
Fixed a problem with AcpiGetDevices where the search of a branch of the
|
|
device tree could be terminated prematurely. In accordance with the ACPI
|
|
specification, the search down the current branch is terminated if a device
|
|
is both not present and not functional (instead of just not present.) Yakui
|
|
Zhao.
|
|
|
|
Fixed a problem where "unknown" GPEs could be allowed to fire repeatedly if
|
|
the underlying AML code changed the GPE enable registers. Now, any unknown
|
|
incoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled
|
|
instead of simply ignored. Rui Zhang.
|
|
|
|
Fixed a problem with Index Fields where the Index register was incorrectly
|
|
limited to a maximum of 32 bits. Now any size may be used.
|
|
|
|
Fixed a couple memory leaks associated with "implicit return" objects when
|
|
the AML Interpreter slack mode is enabled. Lin Ming BZ 349
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total
|
|
Debug Version: 157.9K Code, 63.6K Data, 221.5K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total
|
|
Debug Version: 158.6K Code, 63.8K Data, 222.4K Total
|
|
|
|
----------------------------------------
|
|
14 November 2007. Summary of changes for version 20071114:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented event counters for each of the Fixed Events, the ACPI SCI
|
|
(interrupt) itself, and control methods executed. Named
|
|
AcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These
|
|
should be useful for debugging and statistics.
|
|
|
|
Implemented a new external interface, AcpiGetStatistics, to retrieve the
|
|
contents of the various event counters. Returns the current values for
|
|
AcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and
|
|
AcpiMethodCount. The interface can be expanded in the future if new counters
|
|
are added. Device drivers should use this interface rather than access the
|
|
counters directly.
|
|
|
|
Fixed a problem with the FromBCD and ToBCD operators. With some compilers,
|
|
the ShortDivide function worked incorrectly, causing problems with the BCD
|
|
functions with large input values. A truncation from 64-bit to 32-bit
|
|
inadvertently occurred. Internal BZ 435. Lin Ming
|
|
|
|
Fixed a problem with Index references passed as method arguments. References
|
|
passed as arguments to control methods were dereferenced immediately (before
|
|
control was passed to the called method). The references are now correctly
|
|
passed directly to the called method. BZ 5389. Lin Ming
|
|
|
|
Fixed a problem with CopyObject used in conjunction with the Index operator.
|
|
The reference was incorrectly dereferenced before the copy. The reference is
|
|
now correctly copied. BZ 5391. Lin Ming
|
|
|
|
Fixed a problem with Control Method references within Package objects. These
|
|
references are now correctly generated. This completes the package
|
|
construction overhaul that began in version 20071019.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total
|
|
Debug Version: 157.2K Code, 63.4K Data, 220.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total
|
|
Debug Version: 157.9K Code, 63.6K Data, 221.5K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
The AcpiExec utility now installs handlers for all of the predefined
|
|
Operation Region types. New types supported are: PCI_Config, CMOS, and
|
|
PCIBARTarget.
|
|
|
|
Fixed a problem with the 64-bit version of AcpiExec where the extended (64-
|
|
bit) address fields for the DSDT and FACS within the FADT were not being
|
|
used, causing truncation of the upper 32-bits of these addresses. Lin Ming
|
|
and Bob Moore
|
|
|
|
----------------------------------------
|
|
19 October 2007. Summary of changes for version 20071019:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem with the Alias operator when the target of the alias is a
|
|
named ASL operator that opens a new scope -- Scope, Device, PowerResource,
|
|
Processor, and ThermalZone. In these cases, any children of the original
|
|
operator could not be accessed via the alias, potentially causing unexpected
|
|
AE_NOT_FOUND exceptions. (BZ 9067)
|
|
|
|
Fixed a problem with the Package operator where all named references were
|
|
created as object references and left otherwise unresolved. According to the
|
|
ACPI specification, a Package can only contain Data Objects or references to
|
|
control methods. The implication is that named references to Data Objects
|
|
(Integer, Buffer, String, Package, BufferField, Field) should be resolved
|
|
immediately upon package creation. This is the approach taken with this
|
|
change. References to all other named objects (Methods, Devices, Scopes,
|
|
etc.) are all now properly created as reference objects. (BZ 5328)
|
|
|
|
Reverted a change to Notify handling that was introduced in version
|
|
20070508. This version changed the Notify handling from asynchronous to
|
|
fully synchronous (Device driver Notify handling with respect to the Notify
|
|
ASL operator). It was found that this change caused more problems than it
|
|
solved and was removed by most users.
|
|
|
|
Fixed a problem with the Increment and Decrement operators where the type of
|
|
the target object could be unexpectedly and incorrectly changed. (BZ 353)
|
|
Lin Ming.
|
|
|
|
Fixed a problem with the Load and LoadTable operators where the table
|
|
location within the namespace was ignored. Instead, the table was always
|
|
loaded into the root or current scope. Lin Ming.
|
|
|
|
Fixed a problem with the Load operator when loading a table from a buffer
|
|
object. The input buffer was prematurely zeroed and/or deleted. (BZ 577)
|
|
|
|
Fixed a problem with the Debug object where a store of a DdbHandle reference
|
|
object to the Debug object could cause a fault.
|
|
|
|
Added a table checksum verification for the Load operator, in the case where
|
|
the load is from a buffer. (BZ 578).
|
|
|
|
Implemented additional parameter validation for the LoadTable operator. The
|
|
length of the input strings SignatureString, OemIdString, and OemTableId are
|
|
now checked for maximum lengths. (BZ 582) Lin Ming.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total
|
|
Debug Version: 156.7K Code, 63.2K Data, 219.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total
|
|
Debug Version: 157.2K Code, 63.4K Data, 220.6K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem where if a single file was specified and the file did not
|
|
exist, no error message was emitted. (Introduced with wildcard support in
|
|
version 20070917.)
|
|
|
|
----------------------------------------
|
|
19 September 2007. Summary of changes for version 20070919:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Designed and implemented new external interfaces to install and remove
|
|
handlers for ACPI table-related events. Current events that are defined are
|
|
LOAD and UNLOAD. These interfaces allow the host to track ACPI tables as
|
|
they are dynamically loaded and unloaded. See AcpiInstallTableHandler and
|
|
AcpiRemoveTableHandler. (Lin Ming and Bob Moore)
|
|
|
|
Fixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag
|
|
(acpi_serialized option on Linux) could cause some systems to hang during
|
|
initialization. (Bob Moore) BZ 8171
|
|
|
|
Fixed a problem where objects of certain types (Device, ThermalZone,
|
|
Processor, PowerResource) can be not found if they are declared and
|
|
referenced from within the same control method (Lin Ming) BZ 341
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total
|
|
Debug Version: 156.3K Code, 63.1K Data, 219.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total
|
|
Debug Version: 156.7K Code, 63.2K Data, 219.9K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented support to allow multiple files to be compiled/disassembled in a
|
|
single invocation. This includes command line wildcard support for both the
|
|
Windows and Unix versions of the compiler. This feature simplifies the
|
|
disassembly and compilation of multiple ACPI tables in a single directory.
|
|
|
|
----------------------------------------
|
|
08 May 2007. Summary of changes for version 20070508:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented a Microsoft compatibility design change for the handling of the
|
|
Notify AML operator. Previously, notify handlers were dispatched and
|
|
executed completely asynchronously in a deferred thread. The new design
|
|
still executes the notify handlers in a different thread, but the original
|
|
thread that executed the Notify() now waits at a synchronization point for
|
|
the notify handler to complete. Some machines depend on a synchronous Notify
|
|
operator in order to operate correctly.
|
|
|
|
Implemented support to allow Package objects to be passed as method
|
|
arguments to the external AcpiEvaluateObject interface. Previously, this
|
|
would return the AE_NOT_IMPLEMENTED exception. This feature had not been
|
|
implemented since there were no reserved control methods that required it
|
|
until recently.
|
|
|
|
Fixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that
|
|
contained invalid non-zero values in reserved fields could cause later
|
|
failures because these fields have meaning in later revisions of the FADT.
|
|
For incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields
|
|
are: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.)
|
|
|
|
Fixed a problem where the Global Lock handle was not properly updated if a
|
|
thread that acquired the Global Lock via executing AML code then attempted
|
|
to acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe
|
|
Liu.
|
|
|
|
Fixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list
|
|
could be corrupted if the interrupt being removed was at the head of the
|
|
list. Reported by Linn Crosetto.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
|
|
Debug Version: 155.9K Code, 63.1K Data, 219.0K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total
|
|
Debug Version: 156.3K Code, 63.1K Data, 219.4K Total
|
|
|
|
----------------------------------------
|
|
20 March 2007. Summary of changes for version 20070320:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented a change to the order of interpretation and evaluation of AML
|
|
operand objects within the AML interpreter. The interpreter now evaluates
|
|
operands in the order that they appear in the AML stream (and the
|
|
corresponding ASL code), instead of in the reverse order (after the entire
|
|
operand list has been parsed). The previous behavior caused several subtle
|
|
incompatibilities with the Microsoft AML interpreter as well as being
|
|
somewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov.
|
|
|
|
Implemented a change to the ACPI Global Lock support. All interfaces to the
|
|
global lock now allow the same thread to acquire the lock multiple times.
|
|
This affects the AcpiAcquireGlobalLock external interface to the global lock
|
|
as well as the internal use of the global lock to support AML fields -- a
|
|
control method that is holding the global lock can now simultaneously access
|
|
AML fields that require global lock protection. Previously, in both cases,
|
|
this would have resulted in an AE_ALREADY_ACQUIRED exception. The change to
|
|
AcpiAcquireGlobalLock is of special interest to drivers for the Embedded
|
|
Controller. There is no change to the behavior of the AML Acquire operator,
|
|
as this can already be used to acquire a mutex multiple times by the same
|
|
thread. BZ 8066. With assistance from Alexey Starikovskiy.
|
|
|
|
Fixed a problem where invalid objects could be referenced in the AML
|
|
Interpreter after error conditions. During operand evaluation, ensure that
|
|
the internal "Return Object" field is cleared on error and only valid
|
|
pointers are stored there. Caused occasional access to deleted objects that
|
|
resulted in "large reference count" warning messages. Valery Podrezov.
|
|
|
|
Fixed a problem where an AE_STACK_OVERFLOW internal exception could occur on
|
|
deeply nested control method invocations. BZ 7873, local BZ 487. Valery
|
|
Podrezov.
|
|
|
|
Fixed an internal problem with the handling of result objects on the
|
|
interpreter result stack. BZ 7872. Valery Podrezov.
|
|
|
|
Removed obsolete code that handled the case where AML_NAME_OP is the target
|
|
of a reference (Reference.Opcode). This code was no longer necessary. BZ
|
|
7874. Valery Podrezov.
|
|
|
|
Removed obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a
|
|
remnant from the previously discontinued 16-bit support.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
|
|
Debug Version: 155.8K Code, 63.3K Data, 219.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
|
|
Debug Version: 155.9K Code, 63.1K Data, 219.0K Total
|
|
|
|
----------------------------------------
|
|
26 January 2007. Summary of changes for version 20070126:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Added the 2007 copyright to all module headers and signons. This affects
|
|
virtually every file in the ACPICA core subsystem, the iASL compiler, and
|
|
the utilities.
|
|
|
|
Implemented a fix for an incorrect parameter passed to AcpiTbDeleteTable
|
|
during a table load. A bad pointer was passed in the case where the DSDT is
|
|
overridden, causing a fault in this case.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
|
|
Debug Version: 155.8K Code, 63.3K Data, 219.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
|
|
Debug Version: 155.8K Code, 63.3K Data, 219.1K Total
|
|
|
|
----------------------------------------
|
|
15 December 2006. Summary of changes for version 20061215:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Support for 16-bit ACPICA has been completely removed since it is no longer
|
|
necessary and it clutters the code. All 16-bit macros, types, and
|
|
conditional compiles have been removed, cleaning up and simplifying the code
|
|
across the entire subsystem. DOS support is no longer needed since the
|
|
bootable Linux firmware kit is now available.
|
|
|
|
The handler for the Global Lock is now removed during AcpiTerminate to
|
|
enable a clean subsystem restart, via the implementation of the
|
|
AcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz,
|
|
HP)
|
|
|
|
Implemented enhancements to the multithreading support within the debugger
|
|
to enable improved multithreading debugging and evaluation of the subsystem.
|
|
(Valery Podrezov)
|
|
|
|
Debugger: Enhanced the Statistics/Memory command to emit the total (maximum)
|
|
memory used during the execution, as well as the maximum memory consumed by
|
|
each of the various object types. (Valery Podrezov)
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total
|
|
Debug Version: 155.2K Code, 63.1K Data, 218.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total
|
|
Debug Version: 155.8K Code, 63.3K Data, 219.1K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
AcpiExec: Implemented a new option (-m) to display full memory use
|
|
statistics upon subsystem/program termination. (Valery Podrezov)
|
|
|
|
----------------------------------------
|
|
09 November 2006. Summary of changes for version 20061109:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Optimized the Load ASL operator in the case where the source operand is an
|
|
operation region. Simply map the operation region memory, instead of
|
|
performing a bytewise read. (Region must be of type SystemMemory, see
|
|
below.)
|
|
|
|
Fixed the Load ASL operator for the case where the source operand is a
|
|
region field. A buffer object is also allowed as the source operand. BZ 480
|
|
|
|
Fixed a problem where the Load ASL operator allowed the source operand to be
|
|
an operation region of any type. It is now restricted to regions of type
|
|
SystemMemory, as per the ACPI specification. BZ 481
|
|
|
|
Additional cleanup and optimizations for the new Table Manager code.
|
|
|
|
AcpiEnable will now fail if all of the required ACPI tables are not loaded
|
|
(FADT, FACS, DSDT). BZ 477
|
|
|
|
Added #pragma pack(8/4) to acobject.h to ensure that the structures in this
|
|
header are always compiled as aligned. The ACPI_OPERAND_OBJECT has been
|
|
manually optimized to be aligned and will not work if it is byte-packed.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total
|
|
Debug Version: 155.4K Code, 63.1K Data, 218.5K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total
|
|
Debug Version: 155.2K Code, 63.1K Data, 218.3K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Fixed a problem where the presence of the _OSI predefined control method
|
|
within complex expressions could cause an internal compiler error.
|
|
|
|
AcpiExec: Implemented full region support for multiple address spaces.
|
|
SpaceId is now part of the REGION object. BZ 429
|
|
|
|
----------------------------------------
|
|
11 October 2006. Summary of changes for version 20061011:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Completed an AML interpreter performance enhancement for control method
|
|
execution. Previously a 2-pass parse/execution, control methods are now
|
|
completely parsed and executed in a single pass. This improves overall
|
|
interpreter performance by ~25%, reduces code size, and reduces CPU stack
|
|
use. (Valery Podrezov + interpreter changes in version 20051202 that
|
|
eliminated namespace loading during the pass one parse.)
|
|
|
|
Implemented _CID support for PCI Root Bridge detection. If the _HID does not
|
|
match the predefined PCI Root Bridge IDs, the _CID list (if present) is now
|
|
obtained and also checked for an ID match.
|
|
|
|
Implemented additional support for the PCI _ADR execution: upsearch until a
|
|
device scope is found before executing _ADR. This allows PCI_Config
|
|
operation regions to be declared locally within control methods underneath
|
|
PCI device objects.
|
|
|
|
Fixed a problem with a possible race condition between threads executing
|
|
AcpiWalkNamespace and the AML interpreter. This condition was removed by
|
|
modifying AcpiWalkNamespace to (by default) ignore all temporary namespace
|
|
entries created during any concurrent control method execution. An
|
|
additional namespace race condition is known to exist between
|
|
AcpiWalkNamespace and the Load/Unload ASL operators and is still under
|
|
investigation.
|
|
|
|
Restructured the AML ParseLoop function, breaking it into several
|
|
subfunctions in order to reduce CPU stack use and improve maintainability.
|
|
(Mikhail Kouzmich)
|
|
|
|
AcpiGetHandle: Fix for parameter validation to detect invalid combinations
|
|
of prefix handle and pathname. BZ 478
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total
|
|
Debug Version: 154.6K Code, 63.0K Data, 217.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total
|
|
Debug Version: 155.4K Code, 63.1K Data, 218.5K Total
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Ported the -g option (get local ACPI tables) to the new ACPICA Table Manager
|
|
to restore original behavior.
|
|
|
|
----------------------------------------
|
|
27 September 2006. Summary of changes for version 20060927:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Removed the "Flags" parameter from AcpiGetRegister and AcpiSetRegister.
|
|
These functions now use a spinlock for mutual exclusion and the interrupt
|
|
level indication flag is not needed.
|
|
|
|
Fixed a problem with the Global Lock where the lock could appear to be
|
|
obtained before it is actually obtained. The global lock semaphore was
|
|
inadvertently created with one unit instead of zero units. (BZ 464) Fiodor
|
|
Suietov.
|
|
|
|
Fixed a possible memory leak and fault in AcpiExResolveObjectToValue during
|
|
a read from a buffer or region field. (BZ 458) Fiodor Suietov.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total
|
|
Debug Version: 154.7K Code, 63.0K Data, 217.7K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total
|
|
Debug Version: 154.6K Code, 63.0K Data, 217.6K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Fixed a compilation problem with the pre-defined Resource Descriptor field
|
|
names where an "object does not exist" error could be incorrectly generated
|
|
if the parent ResourceTemplate pathname places the template within a
|
|
different namespace scope than the current scope. (BZ 7212)
|
|
|
|
Fixed a problem where the compiler could hang after syntax errors detected
|
|
in an ElseIf construct. (BZ 453)
|
|
|
|
Fixed a problem with the AmlFilename parameter to the DefinitionBlock()
|
|
operator. An incorrect output filename was produced when this parameter was
|
|
a null string (""). Now, the original input filename is used as the AML
|
|
output filename, with an ".aml" extension.
|
|
|
|
Implemented a generic batch command mode for the AcpiExec utility (execute
|
|
any AML debugger command) (Valery Podrezov).
|
|
|
|
----------------------------------------
|
|
12 September 2006. Summary of changes for version 20060912:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Enhanced the implementation of the "serialized mode" of the interpreter
|
|
(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is
|
|
specified, instead of creating a serialization semaphore per control method,
|
|
the interpreter lock is simply no longer released before a blocking
|
|
operation during control method execution. This effectively makes the AML
|
|
Interpreter single-threaded. The overhead of a semaphore per-method is
|
|
eliminated.
|
|
|
|
Fixed a regression where an error was no longer emitted if a control method
|
|
attempts to create 2 objects of the same name. This once again returns
|
|
AE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that
|
|
will dynamically serialize the control method to possible prevent future
|
|
errors. (BZ 440)
|
|
|
|
Integrated a fix for a problem with PCI Express HID detection in the PCI
|
|
Config Space setup procedure. (BZ 7145)
|
|
|
|
Moved all FADT-related functions to a new file, tbfadt.c. Eliminated the
|
|
AcpiHwInitialize function - the FADT registers are now validated when the
|
|
table is loaded.
|
|
|
|
Added two new warnings during FADT verification - 1) if the FADT is larger
|
|
than the largest known FADT version, and 2) if there is a mismatch between a
|
|
32-bit block address and the 64-bit X counterpart (when both are non-zero.)
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total
|
|
Debug Version: 154.9K Code, 62.6K Data, 217.5K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total
|
|
Debug Version: 154.7K Code, 63.0K Data, 217.7K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Fixed a problem with the implementation of the Switch() operator where the
|
|
temporary variable was declared too close to the actual Switch, instead of
|
|
at method level. This could cause a problem if the Switch() operator is
|
|
within a while loop, causing an error on the second iteration. (BZ 460)
|
|
|
|
Disassembler - fix for error emitted for unknown type for target of scope
|
|
operator. Now, ignore it and continue.
|
|
|
|
Disassembly of an FADT now verifies the input FADT and reports any errors
|
|
found. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs.
|
|
|
|
Disassembly of raw data buffers with byte initialization data now prefixes
|
|
each output line with the current buffer offset.
|
|
|
|
Disassembly of ASF! table now includes all variable-length data fields at
|
|
the end of some of the subtables.
|
|
|
|
The disassembler now emits a comment if a buffer appears to be a
|
|
ResourceTemplate, but cannot be disassembled as such because the EndTag does
|
|
not appear at the very end of the buffer.
|
|
|
|
AcpiExec - Added the "-t" command line option to enable the serialized mode
|
|
of the AML interpreter.
|
|
|
|
----------------------------------------
|
|
31 August 2006. Summary of changes for version 20060831:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Miscellaneous fixes for the Table Manager:
|
|
- Correctly initialize internal common FADT for all 64-bit "X" fields
|
|
- Fixed a couple table mapping issues during table load
|
|
- Fixed a couple alignment issues for IA64
|
|
- Initialize input array to zero in AcpiInitializeTables
|
|
- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader,
|
|
AcpiGetTableByIndex
|
|
|
|
Change for GPE support: when a "wake" GPE is received, all wake GPEs are now
|
|
immediately disabled to prevent the waking GPE from firing again and to
|
|
prevent other wake GPEs from interrupting the wake process.
|
|
|
|
Added the AcpiGpeCount global that tracks the number of processed GPEs, to
|
|
be used for debugging systems with a large number of ACPI interrupts.
|
|
|
|
Implemented support for the "DMAR" ACPI table (DMA Redirection Table) in
|
|
both the ACPICA headers and the disassembler.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total
|
|
Debug Version: 154.6K Code, 62.3K Data, 216.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total
|
|
Debug Version: 154.9K Code, 62.6K Data, 217.5K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Disassembler support for the DMAR ACPI table.
|
|
|
|
----------------------------------------
|
|
23 August 2006. Summary of changes for version 20060823:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
The Table Manager component has been completely redesigned and
|
|
reimplemented. The new design is much simpler, and reduces the overall code
|
|
and data size of the kernel-resident ACPICA by approximately 5%. Also, it is
|
|
now possible to obtain the ACPI tables very early during kernel
|
|
initialization, even before dynamic memory management is initialized.
|
|
(Alexey Starikovskiy, Fiodor Suietov, Bob Moore)
|
|
|
|
Obsolete ACPICA interfaces:
|
|
|
|
- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init
|
|
time).
|
|
- AcpiLoadTable: Not needed.
|
|
- AcpiUnloadTable: Not needed.
|
|
|
|
New ACPICA interfaces:
|
|
|
|
- AcpiInitializeTables: Must be called before the table manager can be used.
|
|
- AcpiReallocateRootTable: Used to transfer the root table to dynamically
|
|
allocated memory after it becomes available.
|
|
- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables
|
|
in the RSDT/XSDT.
|
|
|
|
Other ACPICA changes:
|
|
|
|
- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use
|
|
AcpiOsUnmapMemory to free this mapping.
|
|
- AcpiGetTable returns the actual mapped table. The mapping is managed
|
|
internally and must not be deleted by the caller. Use of this interface
|
|
causes no additional dynamic memory allocation.
|
|
- AcpiFindRootPointer: Support for physical addressing has been eliminated,
|
|
it appeared to be unused.
|
|
- The interface to AcpiOsMapMemory has changed to be consistent with the
|
|
other allocation interfaces.
|
|
- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary
|
|
parameters.
|
|
- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64-
|
|
bit platforms. Was previously 64 bits on all platforms.
|
|
- The interface to the ACPI Global Lock acquire/release macros have changed
|
|
slightly since ACPICA no longer keeps a local copy of the FACS with a
|
|
constructed pointer to the actual global lock.
|
|
|
|
Porting to the new table manager:
|
|
|
|
- AcpiInitializeTables: Must be called once, and can be called anytime
|
|
during the OS initialization process. It allows the host to specify an area
|
|
of memory to be used to store the internal version of the RSDT/XSDT (root
|
|
table). This allows the host to access ACPI tables before memory management
|
|
is initialized and running.
|
|
- AcpiReallocateRootTable: Can be called after memory management is running
|
|
to copy the root table to a dynamically allocated array, freeing up the
|
|
scratch memory specified in the call to AcpiInitializeTables.
|
|
- AcpiSubsystemInitialize: This existing interface is independent of the
|
|
Table Manager, and does not have to be called before the Table Manager can
|
|
be used, it only must be called before the rest of ACPICA can be used.
|
|
- ACPI Tables: Some changes have been made to the names and structure of the
|
|
actbl.h and actbl1.h header files and may require changes to existing code.
|
|
For example, bitfields have been completely removed because of their lack of
|
|
portability across C compilers.
|
|
- Update interfaces to the Global Lock acquire/release macros if local
|
|
versions are used. (see acwin.h)
|
|
|
|
Obsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c
|
|
|
|
New files: tbfind.c
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total
|
|
Debug Version: 161.0K Code, 65.1K Data, 226.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total
|
|
Debug Version: 154.6K Code, 62.3K Data, 216.9K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
No changes for this release.
|
|
|
|
----------------------------------------
|
|
21 July 2006. Summary of changes for version 20060721:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
The full source code for the ASL test suite used to validate the iASL
|
|
compiler and the ACPICA core subsystem is being released with the ACPICA
|
|
source for the first time. The source is contained in a separate package and
|
|
consists of over 1100 files that exercise all ASL/AML operators. The package
|
|
should appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor
|
|
Suietov)
|
|
|
|
Completed a new design and implementation for support of the ACPI Global
|
|
Lock. On the OS side, the global lock is now treated as a standard AML
|
|
mutex. Previously, multiple OS threads could "acquire" the global lock
|
|
simultaneously. However, this could cause the BIOS to be starved out of the
|
|
lock - especially in cases such as the Embedded Controller driver where
|
|
there is a tight coupling between the OS and the BIOS.
|
|
|
|
Implemented an optimization for the ACPI Global Lock interrupt mechanism.
|
|
The Global Lock interrupt handler no longer queues the execution of a
|
|
separate thread to signal the global lock semaphore. Instead, the semaphore
|
|
is signaled directly from the interrupt handler.
|
|
|
|
Implemented support within the AML interpreter for package objects that
|
|
contain a larger AML length (package list length) than the package element
|
|
count. In this case, the length of the package is truncated to match the
|
|
package element count. Some BIOS code apparently modifies the package length
|
|
on the fly, and this change supports this behavior. Provides compatibility
|
|
with the MS AML interpreter. (With assistance from Fiodor Suietov)
|
|
|
|
Implemented a temporary fix for the BankValue parameter of a Bank Field to
|
|
support all constant values, now including the Zero and One opcodes.
|
|
Evaluation of this parameter must eventually be converted to a full TermArg
|
|
evaluation. A not-implemented error is now returned (temporarily) for non-
|
|
constant values for this parameter.
|
|
|
|
Fixed problem reports (Fiodor Suietov) integrated:
|
|
- Fix for premature object deletion after CopyObject on Operation Region (BZ
|
|
350)
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total
|
|
Debug Version: 160.9K Code, 65.1K Data, 226.0K Total
|
|
Current Release:
|
|
Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total
|
|
Debug Version: 161.0K Code, 65.1K Data, 226.1K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
No changes for this release.
|
|
|
|
----------------------------------------
|
|
07 July 2006. Summary of changes for version 20060707:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Added the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers
|
|
that do not allow the initialization of address pointers within packed
|
|
structures - even though the hardware itself may support misaligned
|
|
transfers. Some of the debug data structures are packed by default to
|
|
minimize size.
|
|
|
|
Added an error message for the case where AcpiOsGetThreadId() returns zero.
|
|
A non-zero value is required by the core ACPICA code to ensure the proper
|
|
operation of AML mutexes and recursive control methods.
|
|
|
|
The DSDT is now the only ACPI table that determines whether the AML
|
|
interpreter is in 32-bit or 64-bit mode. Not really a functional change, but
|
|
the hooks for per-table 32/64 switching have been removed from the code. A
|
|
clarification to the ACPI specification is forthcoming in ACPI 3.0B.
|
|
|
|
Fixed a possible leak of an OwnerID in the error path of
|
|
AcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID
|
|
deletion to a single place in AcpiTbUninstallTable to correct possible leaks
|
|
when using the AcpiTbDeleteTablesByType interface (with assistance from
|
|
Lance Ortiz.)
|
|
|
|
Fixed a problem with Serialized control methods where the semaphore
|
|
associated with the method could be over-signaled after multiple method
|
|
invocations.
|
|
|
|
Fixed two issues with the locking of the internal namespace data structure.
|
|
Both the Unload() operator and AcpiUnloadTable interface now lock the
|
|
namespace during the namespace deletion associated with the table unload
|
|
(with assistance from Linn Crosetto.)
|
|
|
|
Fixed problem reports (Valery Podrezov) integrated:
|
|
- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426)
|
|
|
|
Fixed problem reports (Fiodor Suietov) integrated:
|
|
- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369)
|
|
- On Address Space handler deletion, needless deactivation call (BZ 374)
|
|
- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375)
|
|
- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone
|
|
(BZ 376)
|
|
- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378)
|
|
- Minimum Length of RSDT should be validated (BZ 379)
|
|
- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no
|
|
Handler (BZ (380)
|
|
- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded
|
|
(BZ 381)
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total
|
|
Debug Version: 160.8K Code, 64.8K Data, 225.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total
|
|
Debug Version: 161.0K Code, 65.1K Data, 226.1K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Fixed problem reports:
|
|
Compiler segfault when ASL contains a long (>1024) String declaration (BZ
|
|
436)
|
|
|
|
----------------------------------------
|
|
23 June 2006. Summary of changes for version 20060623:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This
|
|
allows the type to be customized to the host OS for improved efficiency
|
|
(since a spinlock is usually a very small object.)
|
|
|
|
Implemented support for "ignored" bits in the ACPI registers. According to
|
|
the ACPI specification, these bits should be preserved when writing the
|
|
registers via a read/modify/write cycle. There are 3 bits preserved in this
|
|
manner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11].
|
|
|
|
Implemented the initial deployment of new OSL mutex interfaces. Since some
|
|
host operating systems have separate mutex and semaphore objects, this
|
|
feature was requested. The base code now uses mutexes (and the new mutex
|
|
interfaces) wherever a binary semaphore was used previously. However, for
|
|
the current release, the mutex interfaces are defined as macros to map them
|
|
to the existing semaphore interfaces. Therefore, no OSL changes are required
|
|
at this time. (See acpiosxf.h)
|
|
|
|
Fixed several problems with the support for the control method SyncLevel
|
|
parameter. The SyncLevel now works according to the ACPI specification and
|
|
in concert with the Mutex SyncLevel parameter, since the current SyncLevel
|
|
is a property of the executing thread. Mutual exclusion for control methods
|
|
is now implemented with a mutex instead of a semaphore.
|
|
|
|
Fixed three instances of the use of the C shift operator in the bitfield
|
|
support code (exfldio.c) to avoid the use of a shift value larger than the
|
|
target data width. The behavior of C compilers is undefined in this case and
|
|
can cause unpredictable results, and therefore the case must be detected and
|
|
avoided. (Fiodor Suietov)
|
|
|
|
Added an info message whenever an SSDT or OEM table is loaded dynamically
|
|
via the Load() or LoadTable() ASL operators. This should improve debugging
|
|
capability since it will show exactly what tables have been loaded (beyond
|
|
the tables present in the RSDT/XSDT.)
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total
|
|
Debug Version: 160.2K Code, 64.7K Data, 224.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total
|
|
Debug Version: 160.8K Code, 64.8K Data, 225.6K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
No changes for this release.
|
|
|
|
----------------------------------------
|
|
08 June 2006. Summary of changes for version 20060608:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Converted the locking mutex used for the ACPI hardware to a spinlock. This
|
|
change should eliminate all problems caused by attempting to acquire a
|
|
semaphore at interrupt level, and it means that all ACPICA external
|
|
interfaces that directly access the ACPI hardware can be safely called from
|
|
interrupt level. OSL code that implements the semaphore interfaces should be
|
|
able to eliminate any workarounds for being called at interrupt level.
|
|
|
|
Fixed a regression introduced in 20060526 where the ACPI device
|
|
initialization could be prematurely aborted with an AE_NOT_FOUND if a device
|
|
did not have an optional _INI method.
|
|
|
|
Fixed an IndexField issue where a write to the Data Register should be
|
|
limited in size to the AccessSize (width) of the IndexField itself. (BZ 433,
|
|
Fiodor Suietov)
|
|
|
|
Fixed problem reports (Valery Podrezov) integrated:
|
|
- Allow store of ThermalZone objects to Debug object (BZ 5369/5370)
|
|
|
|
Fixed problem reports (Fiodor Suietov) integrated:
|
|
- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364)
|
|
|
|
Removed four global mutexes that were obsolete and were no longer being
|
|
used.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total
|
|
Debug Version: 160.3K Code, 64.9K Data, 225.2K Total
|
|
Current Release:
|
|
Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total
|
|
Debug Version: 160.2K Code, 64.7K Data, 224.9K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Fixed a fault when using -g option (get tables from registry) on Windows
|
|
machines.
|
|
|
|
Fixed problem reports integrated:
|
|
- Generate error if CreateField NumBits parameter is zero. (BZ 405)
|
|
- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor
|
|
Suietov)
|
|
- Global table revision override (-r) is ignored (BZ 413)
|
|
|
|
----------------------------------------
|
|
26 May 2006. Summary of changes for version 20060526:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Restructured, flattened, and simplified the internal interfaces for
|
|
namespace object evaluation - resulting in smaller code, less CPU stack use,
|
|
and fewer interfaces. (With assistance from Mikhail Kouzmich)
|
|
|
|
Fixed a problem with the CopyObject operator where the first parameter was
|
|
not typed correctly for the parser, interpreter, compiler, and disassembler.
|
|
Caused various errors and unexpected behavior.
|
|
|
|
Fixed a problem where a ShiftLeft or ShiftRight of more than 64 bits
|
|
produced incorrect results with some C compilers. Since the behavior of C
|
|
compilers when the shift value is larger than the datatype width is
|
|
apparently not well defined, the interpreter now detects this condition and
|
|
simply returns zero as expected in all such cases. (BZ 395)
|
|
|
|
Fixed problem reports (Valery Podrezov) integrated:
|
|
- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329)
|
|
- Allow interpreter to handle nested method declarations (BZ 5361)
|
|
|
|
Fixed problem reports (Fiodor Suietov) integrated:
|
|
- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355)
|
|
- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356)
|
|
- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357)
|
|
- Resource Manager should return AE_TYPE for non-device objects (BZ 358)
|
|
- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359)
|
|
- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360)
|
|
- Incomplete cleanup branch in AcpiPsParseAml (BZ 361)
|
|
- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362)
|
|
- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365)
|
|
- Status of the Global Initialization Handler call not used (BZ 366)
|
|
- Incorrect object parameter to Global Initialization Handler (BZ 367)
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total
|
|
Debug Version: 160.5K Code, 65.1K Data, 225.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total
|
|
Debug Version: 160.3K Code, 64.9K Data, 225.2K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Modified the parser to allow the names IO, DMA, and IRQ to be used as
|
|
namespace identifiers with no collision with existing resource descriptor
|
|
macro names. This provides compatibility with other ASL compilers and is
|
|
most useful for disassembly/recompilation of existing tables without parse
|
|
errors. (With assistance from Thomas Renninger)
|
|
|
|
Disassembler: fixed an incorrect disassembly problem with the
|
|
DataTableRegion and CopyObject operators. Fixed a possible fault during
|
|
disassembly of some Alias operators.
|
|
|
|
----------------------------------------
|
|
12 May 2006. Summary of changes for version 20060512:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Replaced the AcpiOsQueueForExecution interface with a new interface named
|
|
AcpiOsExecute. The major difference is that the new interface does not have
|
|
a Priority parameter, this appeared to be useless and has been replaced by a
|
|
Type parameter. The Type tells the host what type of execution is being
|
|
requested, such as global lock handler, notify handler, GPE handler, etc.
|
|
This allows the host to queue and execute the request as appropriate for the
|
|
request type, possibly using different work queues and different priorities
|
|
for the various request types. This enables fixes for multithreading
|
|
deadlock problems such as BZ #5534, and will require changes to all existing
|
|
OS interface layers. (Alexey Starikovskiy and Bob Moore)
|
|
|
|
Fixed a possible memory leak associated with the support for the so-called
|
|
"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor
|
|
Suietov)
|
|
|
|
Fixed a problem with the Load() operator where a table load from an
|
|
operation region could overwrite an internal table buffer by up to 7 bytes
|
|
and cause alignment faults on IPF systems. (With assistance from Luming Yu)
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total
|
|
Debug Version: 160.1K Code, 65.2K Data, 225.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total
|
|
Debug Version: 160.5K Code, 65.1K Data, 225.6K Total
|
|
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Disassembler: Implemented support to cross reference the internal namespace
|
|
and automatically generate ASL External() statements for symbols not defined
|
|
within the current table being disassembled. This will simplify the
|
|
disassembly and recompilation of interdependent tables such as SSDTs since
|
|
these statements will no longer have to be added manually.
|
|
|
|
Disassembler: Implemented experimental support to automatically detect
|
|
invocations of external control methods and generate appropriate External()
|
|
statements. This is problematic because the AML cannot be correctly parsed
|
|
until the number of arguments for each control method is known. Currently,
|
|
standalone method invocations and invocations as the source operand of a
|
|
Store() statement are supported.
|
|
|
|
Disassembler: Implemented support for the ASL pseudo-operators LNotEqual,
|
|
LLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()),
|
|
LNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code
|
|
more readable and likely closer to the original ASL source.
|
|
|
|
----------------------------------------
|
|
21 April 2006. Summary of changes for version 20060421:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
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, AcpiOsValidateAddress. 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.) See oswinxf or osunixxf for an example
|
|
implementation.
|
|
|
|
Defined and deployed a new OSL interface, AcpiOsValidateInterface. 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.) See oswinxf or osunixxf
|
|
for an example implementation.
|
|
|
|
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.
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
|
|
Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total
|
|
Debug Version: 158.9K Code, 64.9K Data, 223.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total
|
|
Debug Version: 160.1K Code, 65.2K Data, 225.3K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Implemented 3 new warnings for iASL, and implemented multiple warning levels
|
|
(w2 flag).
|
|
|
|
1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not
|
|
WAIT_FOREVER (0xFFFF) and the code does not examine the return value to
|
|
check for the possible timeout, a warning is issued.
|
|
|
|
2) Useless operators: If an ASL operator does not specify an optional target
|
|
operand and it also does not use the function return value from the
|
|
operator, a warning is issued since the operator effectively does nothing.
|
|
|
|
3) Unreferenced objects: If a namespace object is created, but never
|
|
referenced, a warning is issued. This is a warning level 2 since there are
|
|
cases where this is ok, such as when a secondary table is loaded that uses
|
|
the unreferenced objects. Even so, care is taken to only flag objects that
|
|
don't look like they will ever be used. For example, the reserved methods
|
|
(starting with an underscore) are usually not referenced because it is
|
|
expected that the OS will invoke them.
|
|
|
|
----------------------------------------
|
|
31 March 2006. Summary of changes for version 20060331:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented header file support for the following additional ACPI tables:
|
|
ASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support,
|
|
all current and known ACPI tables are now defined in the ACPICA headers and
|
|
are available for use by device drivers and other software.
|
|
|
|
Implemented support to allow tables that contain ACPI names with invalid
|
|
characters to be loaded. Previously, this would cause the table load to
|
|
fail, but since there are several known cases of such tables on existing
|
|
machines, this change was made to enable ACPI support for them. Also, this
|
|
matches the behavior of the Microsoft ACPI implementation.
|
|
|
|
Fixed a couple regressions introduced during the memory optimization in the
|
|
20060317 release. The namespace node definition required additional
|
|
reorganization and an internal datatype that had been changed to 8-bit was
|
|
restored to 32-bit. (Valery Podrezov)
|
|
|
|
Fixed a problem where a null pointer passed to AcpiUtDeleteGenericState
|
|
could be passed through to AcpiOsReleaseObject which is unexpected. Such
|
|
null pointers are now trapped and ignored, matching the behavior of the
|
|
previous implementation before the deployment of AcpiOsReleaseObject.
|
|
(Valery Podrezov, Fiodor Suietov)
|
|
|
|
Fixed a memory mapping leak during the deletion of a SystemMemory operation
|
|
region where a cached memory mapping was not deleted. This became a
|
|
noticeable problem for operation regions that are defined within frequently
|
|
used control methods. (Dana Meyers)
|
|
|
|
Reorganized the ACPI table header files into two main files: one for the
|
|
ACPI tables consumed by the ACPICA core, and another for the miscellaneous
|
|
ACPI tables that are consumed by the drivers and other software. The various
|
|
FADT definitions were merged into one common section and three different
|
|
tables (ACPI 1.0, 1.0+, and 2.0)
|
|
|
|
Example Code and Data Size: These are the sizes for the OS-independent
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
|
|
debug version of the code includes the debug output trace mechanism and has
|
|
a much larger code and data size.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total
|
|
Debug Version: 158.7K Code, 64.8K Data, 223.5K Total
|
|
Current Release:
|
|
Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total
|
|
Debug Version: 158.9K Code, 64.9K Data, 223.8K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Disassembler: Implemented support to decode and format all non-AML ACPI
|
|
tables (tables other than DSDTs and SSDTs.) This includes the new tables
|
|
added to the ACPICA headers, therefore all current and known ACPI tables are
|
|
supported.
|
|
|
|
Disassembler: The change to allow ACPI names with invalid characters also
|
|
enables the disassembly of such tables. Invalid characters within names are
|
|
changed to '*' to make the name printable; the iASL compiler will still
|
|
generate an error for such names, however, since this is an invalid ACPI
|
|
character.
|
|
|
|
Implemented an option for AcpiXtract (-a) to extract all tables found in the
|
|
input file. The default invocation extracts only the DSDTs and SSDTs.
|
|
|
|
Fixed a couple of gcc generation issues for iASL and AcpiExec and added a
|
|
makefile for the AcpiXtract utility.
|
|
|
|
----------------------------------------
|
|
17 March 2006. Summary of changes for version 20060317:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented the use of a cache object for all internal namespace nodes.
|
|
Since there are about 1000 static nodes in a typical system, this will
|
|
decrease memory use for cache implementations that minimize per-allocation
|
|
overhead (such as a slab allocator.)
|
|
|
|
Removed the reference count mechanism for internal namespace nodes, since it
|
|
was deemed unnecessary. This reduces the size of each namespace node by
|
|
about 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case,
|
|
and 32 bytes for the 64-bit case.
|
|
|
|
Optimized several internal data structures to reduce object size on 64-bit
|
|
platforms by packing data within the 64-bit alignment. This includes the
|
|
frequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static
|
|
instances corresponding to the namespace objects.
|
|
|
|
Added two new strings for the predefined _OSI method: "Windows 2001.1 SP1"
|
|
and "Windows 2006".
|
|
|
|
Split the allocation tracking mechanism out to a separate file, from
|
|
utalloc.c to uttrack.c. This mechanism appears to be only useful for
|
|
application-level code. Kernels may wish to not include uttrack.c in
|
|
distributions.
|
|
|
|
Removed all remnants of the obsolete ACPI_REPORT_* macros and the associated
|
|
code. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING
|
|
macros.)
|
|
|
|
Code and Data Size: These are the sizes for the acpica.lib produced by the
|
|
Microsoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI
|
|
driver or OSPM code. The debug version of the code includes the debug output
|
|
trace mechanism and has a much larger code and data size. Note that these
|
|
values will vary depending on the efficiency of the compiler and the
|
|
compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total
|
|
Debug Version: 161.6K Code, 65.7K Data, 227.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total
|
|
Debug Version: 158.7K Code, 64.8K Data, 223.5K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler and Tools:
|
|
|
|
Implemented an ANSI C version of the acpixtract utility. This version will
|
|
automatically extract the DSDT and all SSDTs from the input acpidump text
|
|
file and dump the binary output to separate files. It can also display a
|
|
summary of the input file including the headers for each table found and
|
|
will extract any single ACPI table, with any signature. (See
|
|
source/tools/acpixtract)
|
|
|
|
----------------------------------------
|
|
10 March 2006. Summary of changes for version 20060310:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Tagged all external interfaces to the subsystem with the new
|
|
ACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist
|
|
kernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL
|
|
macro. The default definition is NULL.
|
|
|
|
Added the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId.
|
|
This allows the host to define this as necessary to simplify kernel
|
|
integration. The default definition is ACPI_NATIVE_UINT.
|
|
|
|
Fixed two interpreter problems related to error processing, the deletion of
|
|
objects, and placing invalid pointers onto the internal operator result
|
|
stack. BZ 6028, 6151 (Valery Podrezov)
|
|
|
|
Increased the reference count threshold where a warning is emitted for large
|
|
reference counts in order to eliminate unnecessary warnings on systems with
|
|
large namespaces (especially 64-bit.) Increased the value from 0x400 to
|
|
0x800.
|
|
|
|
Due to universal disagreement as to the meaning of the 'c' in the calloc()
|
|
function, the ACPI_MEM_CALLOCATE macro has been renamed to
|
|
ACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'.
|
|
ACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and
|
|
ACPI_FREE.
|
|
|
|
Code and Data Size: These are the sizes for the acpica.lib produced by the
|
|
Microsoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI
|
|
driver or OSPM code. The debug version of the code includes the debug output
|
|
trace mechanism and has a much larger code and data size. Note that these
|
|
values will vary depending on the efficiency of the compiler and the
|
|
compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total
|
|
Debug Version: 161.4K Code, 65.7K Data, 227.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total
|
|
Debug Version: 161.6K Code, 65.7K Data, 227.3K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Disassembler: implemented support for symbolic resource descriptor
|
|
references. If a CreateXxxxField operator references a fixed offset within a
|
|
resource descriptor, a name is assigned to the descriptor and the offset is
|
|
translated to the appropriate resource tag and pathname. The addition of
|
|
this support brings the disassembled code very close to the original ASL
|
|
source code and helps eliminate run-time errors when the disassembled code
|
|
is modified (and recompiled) in such a way as to invalidate the original
|
|
fixed offsets.
|
|
|
|
Implemented support for a Descriptor Name as the last parameter to the ASL
|
|
Register() macro. This parameter was inadvertently left out of the ACPI
|
|
specification, and will be added for ACPI 3.0b.
|
|
|
|
Fixed a problem where the use of the "_OSI" string (versus the full path
|
|
"\_OSI") caused an internal compiler error. ("No back ptr to op")
|
|
|
|
Fixed a problem with the error message that occurs when an invalid string is
|
|
used for a _HID object (such as one with an embedded asterisk: "*PNP010A".)
|
|
The correct message is now displayed.
|
|
|
|
----------------------------------------
|
|
17 February 2006. Summary of changes for version 20060217:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented a change to the IndexField support to match the behavior of the
|
|
Microsoft AML interpreter. The value written to the Index register is now a
|
|
byte offset, no longer an index based upon the width of the Data register.
|
|
This should fix IndexField problems seen on some machines where the Data
|
|
register is not exactly one byte wide. The ACPI specification will be
|
|
clarified on this point.
|
|
|
|
Fixed a problem where several resource descriptor types could overrun the
|
|
internal descriptor buffer due to size miscalculation: VendorShort,
|
|
VendorLong, and Interrupt. This was noticed on IA64 machines, but could
|
|
affect all platforms.
|
|
|
|
Fixed a problem where individual resource descriptors were misaligned within
|
|
the internal buffer, causing alignment faults on IA64 platforms.
|
|
|
|
Code and Data Size: These are the sizes for the acpica.lib produced by the
|
|
Microsoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI
|
|
driver or OSPM code. The debug version of the code includes the debug output
|
|
trace mechanism and has a much larger code and data size. Note that these
|
|
values will vary depending on the efficiency of the compiler and the
|
|
compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total
|
|
Debug Version: 161.3K Code, 65.6K Data, 226.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total
|
|
Debug Version: 161.4K Code, 65.7K Data, 227.1K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented support for new reserved names: _WDG and _WED are Microsoft
|
|
extensions for Windows Instrumentation Management, _TDL is a new ACPI-
|
|
defined method (Throttling Depth Limit.)
|
|
|
|
Fixed a problem where a zero-length VendorShort or VendorLong resource
|
|
descriptor was incorrectly emitted as a descriptor of length one.
|
|
|
|
----------------------------------------
|
|
10 February 2006. Summary of changes for version 20060210:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Removed a couple of extraneous ACPI_ERROR messages that appeared during
|
|
normal execution. These became apparent after the conversion from
|
|
ACPI_DEBUG_PRINT.
|
|
|
|
Fixed a problem where the CreateField operator could hang if the BitIndex or
|
|
NumBits parameter referred to a named object. (Valery Podrezov, BZ 5359)
|
|
|
|
Fixed a problem where a DeRefOf operation on a buffer object incorrectly
|
|
failed with an exception. This also fixes a couple of related RefOf and
|
|
DeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387)
|
|
|
|
Fixed a problem where the AE_BUFFER_LIMIT exception was returned instead of
|
|
AE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ
|
|
5480)
|
|
|
|
Implemented a memory cleanup at the end of the execution of each iteration
|
|
of an AML While() loop, preventing the accumulation of outstanding objects.
|
|
(Valery Podrezov, BZ 5427)
|
|
|
|
Eliminated a chunk of duplicate code in the object resolution code. (Valery
|
|
Podrezov, BZ 5336)
|
|
|
|
Fixed several warnings during the 64-bit code generation.
|
|
|
|
The AcpiSrc source code conversion tool now inserts one line of whitespace
|
|
after an if() statement that is followed immediately by a comment, improving
|
|
readability of the Linux code.
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total
|
|
Debug Version: 161.3K Code, 65.7K Data, 227.0K Total
|
|
Current Release:
|
|
Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total
|
|
Debug Version: 161.3K Code, 65.6K Data, 226.9K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem with the disassembly of a BankField operator with a complex
|
|
expression for the BankValue parameter.
|
|
|
|
----------------------------------------
|
|
27 January 2006. Summary of changes for version 20060127:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support in the Resource Manager to allow unresolved namestring
|
|
references within resource package objects for the _PRT method. This support
|
|
is in addition to the previously implemented unresolved reference support
|
|
within the AML parser. If the interpreter slack mode is enabled, these
|
|
unresolved references will be passed through to the caller as a NULL package
|
|
entry.
|
|
|
|
Implemented and deployed new macros and functions for error and warning
|
|
messages across the subsystem. These macros are simpler and generate less
|
|
code than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION,
|
|
ACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older
|
|
macros remain defined to allow ACPI drivers time to migrate to the new
|
|
macros.
|
|
|
|
Implemented the ACPI_CPU_FLAGS type to simplify host OS integration of the
|
|
Acquire/Release Lock OSL interfaces.
|
|
|
|
Fixed a problem where Alias ASL operators are sometimes not correctly
|
|
resolved, in both the interpreter and the iASL compiler.
|
|
|
|
Fixed several problems with the implementation of the ConcatenateResTemplate
|
|
ASL operator. As per the ACPI specification, zero length buffers are now
|
|
treated as a single EndTag. One-length buffers always cause a fatal
|
|
exception. Non-zero length buffers that do not end with a full 2-byte EndTag
|
|
cause a fatal exception.
|
|
|
|
Fixed a possible structure overwrite in the AcpiGetObjectInfo external
|
|
interface. (With assistance from Thomas Renninger)
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total
|
|
Debug Version: 163.2K Code, 66.2K Data, 229.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total
|
|
Debug Version: 161.3K Code, 65.7K Data, 227.0K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed an internal error that was generated for any forward references to ASL
|
|
Alias objects.
|
|
|
|
----------------------------------------
|
|
13 January 2006. Summary of changes for version 20060113:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Added 2006 copyright to all module headers and signons. This affects
|
|
virtually every file in the ACPICA core subsystem, iASL compiler, and the
|
|
utilities.
|
|
|
|
Enhanced the ACPICA error reporting in order to simplify user migration to
|
|
the non-debug version of ACPICA. Replaced all instances of the
|
|
ACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug
|
|
levels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros,
|
|
respectively. This preserves all error and warning messages in the non-debug
|
|
version of the ACPICA code (this has been referred to as the "debug lite"
|
|
option.) Over 200 cases were converted to create a total of over 380
|
|
error/warning messages across the ACPICA code. This increases the code and
|
|
data size of the default non-debug version of the code somewhat (about 13K),
|
|
but all error/warning reporting may be disabled if desired (and code
|
|
eliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time
|
|
configuration option. The size of the debug version of ACPICA remains about
|
|
the same.
|
|
|
|
Fixed a memory leak within the AML Debugger "Set" command. One object was
|
|
not properly deleted for every successful invocation of the command.
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total
|
|
Debug Version: 163.7K Code, 67.5K Data, 231.2K Total
|
|
Current Release:
|
|
Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total
|
|
Debug Version: 163.2K Code, 66.2K Data, 229.4K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
The compiler now officially supports the ACPI 3.0a specification that was
|
|
released on December 30, 2005. (Specification is available at www.acpi.info)
|
|
|
|
----------------------------------------
|
|
16 December 2005. Summary of changes for version 20051216:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented optional support to allow unresolved names within ASL Package
|
|
objects. A null object is inserted in the package when a named reference
|
|
cannot be located in the current namespace. Enabled via the interpreter
|
|
slack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines
|
|
that contain such code.
|
|
|
|
Implemented an optimization to the initialization sequence that can improve
|
|
boot time. During ACPI device initialization, the _STA method is now run if
|
|
and only if the _INI method exists. The _STA method is used to determine if
|
|
the device is present; An _INI can only be run if _STA returns present, but
|
|
it is a waste of time to run the _STA method if the _INI does not exist.
|
|
(Prototype and assistance from Dong Wei)
|
|
|
|
Implemented use of the C99 uintptr_t for the pointer casting macros if it is
|
|
available in the current compiler. Otherwise, the default (void *) cast is
|
|
used as before.
|
|
|
|
Fixed some possible memory leaks found within the execution path of the
|
|
Break, Continue, If, and CreateField operators. (Valery Podrezov)
|
|
|
|
Fixed a problem introduced in the 20051202 release where an exception is
|
|
generated during method execution if a control method attempts to declare
|
|
another method.
|
|
|
|
Moved resource descriptor string constants that are used by both the AML
|
|
disassembler and AML debugger to the common utilities directory so that
|
|
these components are independent.
|
|
|
|
Implemented support in the AcpiExec utility (-e switch) to globally ignore
|
|
exceptions during control method execution (method is not aborted.)
|
|
|
|
Added the rsinfo.c source file to the AcpiExec makefile for Linux/Unix
|
|
generation.
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total
|
|
Debug Version: 163.2K Code, 67.4K Data, 230.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total
|
|
Debug Version: 163.7K Code, 67.5K Data, 231.2K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem where a CPU stack overflow fault could occur if a recursive
|
|
method call was made from within a Return statement.
|
|
|
|
----------------------------------------
|
|
02 December 2005. Summary of changes for version 20051202:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Modified the parsing of control methods to no longer create namespace
|
|
objects during the first pass of the parse. Objects are now created only
|
|
during the execute phase, at the moment the namespace creation operator is
|
|
encountered in the AML (Name, OperationRegion, CreateByteField, etc.) This
|
|
should eliminate ALREADY_EXISTS exceptions seen on some machines where
|
|
reentrant control methods are protected by an AML mutex. The mutex will now
|
|
correctly block multiple threads from attempting to create the same object
|
|
more than once.
|
|
|
|
Increased the number of available Owner Ids for namespace object tracking
|
|
from 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on
|
|
some machines with a large number of ACPI tables (either static or dynamic).
|
|
|
|
Fixed a problem with the AcpiExec utility where a fault could occur when the
|
|
-b switch (batch mode) is used.
|
|
|
|
Enhanced the namespace dump routine to output the owner ID for each
|
|
namespace object.
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total
|
|
Debug Version: 163.0K Code, 67.4K Data, 230.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total
|
|
Debug Version: 163.2K Code, 67.4K Data, 230.6K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a parse error during compilation of certain Switch/Case constructs. To
|
|
simplify the parse, the grammar now allows for multiple Default statements
|
|
and this error is now detected and flagged during the analysis phase.
|
|
|
|
Disassembler: The disassembly now includes the contents of the original
|
|
table header within a comment at the start of the file. This includes the
|
|
name and version of the original ASL compiler.
|
|
|
|
----------------------------------------
|
|
17 November 2005. Summary of changes for version 20051117:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem in the AML parser where the method thread count could be
|
|
decremented below zero if any errors occurred during the method parse phase.
|
|
This should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines.
|
|
This also fixed a related regression with the mechanism that detects and
|
|
corrects methods that cannot properly handle reentrancy (related to the
|
|
deployment of the new OwnerId mechanism.)
|
|
|
|
Eliminated the pre-parsing of control methods (to detect errors) during
|
|
table load. Related to the problem above, this was causing unwind issues if
|
|
any errors occurred during the parse, and it seemed to be overkill. A table
|
|
load should not be aborted if there are problems with any single control
|
|
method, thus rendering this feature rather pointless.
|
|
|
|
Fixed a problem with the new table-driven resource manager where an internal
|
|
buffer overflow could occur for small resource templates.
|
|
|
|
Implemented a new external interface, AcpiGetVendorResource. This interface
|
|
will find and return a vendor-defined resource descriptor within a _CRS or
|
|
_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas.
|
|
|
|
Removed the length limit (200) on string objects as per the upcoming ACPI
|
|
3.0A specification. This affects the following areas of the interpreter: 1)
|
|
any implicit conversion of a Buffer to a String, 2) a String object result
|
|
of the ASL Concatentate operator, 3) the String object result of the ASL
|
|
ToString operator.
|
|
|
|
Fixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER
|
|
on a semaphore object would incorrectly timeout. This allows the
|
|
multithreading features of the AcpiExec utility to work properly under
|
|
Windows.
|
|
|
|
Updated the Linux makefiles for the iASL compiler and AcpiExec to include
|
|
the recently added file named "utresrc.c".
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total
|
|
Debug Version: 163.0K Code, 67.4K Data, 230.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total
|
|
Debug Version: 163.0K Code, 67.4K Data, 230.4K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Removed the limit (200) on string objects as per the upcoming ACPI 3.0A
|
|
specification. For the iASL compiler, this means that string literals within
|
|
the source ASL can be of any length.
|
|
|
|
Enhanced the listing output to dump the AML code for resource descriptors
|
|
immediately after the ASL code for each descriptor, instead of in a block at
|
|
the end of the entire resource template.
|
|
|
|
Enhanced the compiler debug output to dump the entire original parse tree
|
|
constructed during the parse phase, before any transforms are applied to the
|
|
tree. The transformed tree is dumped also.
|
|
|
|
----------------------------------------
|
|
02 November 2005. Summary of changes for version 20051102:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Modified the subsystem initialization sequence to improve GPE support. The
|
|
GPE initialization has been split into two parts in order to defer execution
|
|
of the _PRW methods (Power Resources for Wake) until after the hardware is
|
|
fully initialized and the SCI handler is installed. This allows the _PRW
|
|
methods to access fields protected by the Global Lock. This will fix systems
|
|
where a NO_GLOBAL_LOCK exception has been seen during initialization.
|
|
|
|
Converted the ACPI internal object disassemble and display code within the
|
|
AML debugger to fully table-driven operation, reducing code size and
|
|
increasing maintainability.
|
|
|
|
Fixed a regression with the ConcatenateResTemplate() ASL operator introduced
|
|
in the 20051021 release.
|
|
|
|
Implemented support for "local" internal ACPI object types within the
|
|
debugger "Object" command and the AcpiWalkNamespace external interfaces.
|
|
These local types include RegionFields, BankFields, IndexFields, Alias, and
|
|
reference objects.
|
|
|
|
Moved common AML resource handling code into a new file, "utresrc.c". This
|
|
code is shared by both the Resource Manager and the AML Debugger.
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total
|
|
Debug Version: 163.5K Code, 67.0K Data, 230.5K Total
|
|
Current Release:
|
|
Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total
|
|
Debug Version: 163.0K Code, 67.4K Data, 230.4K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem with very large initializer lists (more than 4000 elements)
|
|
for both Buffer and Package objects where the parse stack could overflow.
|
|
|
|
Enhanced the pre-compile source code scan for non-ASCII characters to ignore
|
|
characters within comment fields. The scan is now always performed and is no
|
|
longer optional, detecting invalid characters within a source file
|
|
immediately rather than during the parse phase or later.
|
|
|
|
Enhanced the ASL grammar definition to force early reductions on all list-
|
|
style grammar elements so that the overall parse stack usage is greatly
|
|
reduced. This should improve performance and reduce the possibility of parse
|
|
stack overflow.
|
|
|
|
Eliminated all reduce/reduce conflicts in the iASL parser generation. Also,
|
|
with the addition of a %expected statement, the compiler generates from
|
|
source with no warnings.
|
|
|
|
Fixed a possible segment fault in the disassembler if the input filename
|
|
does not contain a "dot" extension (Thomas Renninger).
|
|
|
|
----------------------------------------
|
|
21 October 2005. Summary of changes for version 20051021:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support for the EM64T and other x86-64 processors. This
|
|
essentially entails recognizing that these processors support non-aligned
|
|
memory transfers. Previously, all 64-bit processors were assumed to lack
|
|
hardware support for non-aligned transfers.
|
|
|
|
Completed conversion of the Resource Manager to nearly full table-driven
|
|
operation. Specifically, the resource conversion code (convert AML to
|
|
internal format and the reverse) and the debug code to dump internal
|
|
resource descriptors are fully table-driven, reducing code and data size and
|
|
improving maintainability.
|
|
|
|
The OSL interfaces for Acquire and Release Lock now use a 64-bit flag word
|
|
on 64-bit processors instead of a fixed 32-bit word. (With assistance from
|
|
Alexey Starikovskiy)
|
|
|
|
Implemented support within the resource conversion code for the Type-
|
|
Specific byte within the various ACPI 3.0 *WordSpace macros.
|
|
|
|
Fixed some issues within the resource conversion code for the type-specific
|
|
flags for both Memory and I/O address resource descriptors. For Memory,
|
|
implemented support for the MTP and TTP flags. For I/O, split the TRS and
|
|
TTP flags into two separate fields.
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total
|
|
Debug Version: 168.0K Code, 68.3K Data, 236.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total
|
|
Debug Version: 163.5K Code, 67.0K Data, 230.5K Total
|
|
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Relaxed a compiler restriction that disallowed a ResourceIndex byte if the
|
|
corresponding ResourceSource string was not also present in a resource
|
|
descriptor declaration. This restriction caused problems with existing
|
|
AML/ASL code that includes the Index byte without the string. When such AML
|
|
was disassembled, it could not be compiled without modification. Further,
|
|
the modified code created a resource template with a different size than the
|
|
original, breaking code that used fixed offsets into the resource template
|
|
buffer.
|
|
|
|
Removed a recent feature of the disassembler to ignore a lone ResourceIndex
|
|
byte. This byte is now emitted if present so that the exact AML can be
|
|
reproduced when the disassembled code is recompiled.
|
|
|
|
Improved comments and text alignment for the resource descriptor code
|
|
emitted by the disassembler.
|
|
|
|
Implemented disassembler support for the ACPI 3.0 AccessSize field within a
|
|
Register() resource descriptor.
|
|
|
|
----------------------------------------
|
|
30 September 2005. Summary of changes for version 20050930:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Completed a major overhaul of the Resource Manager code - specifically,
|
|
optimizations in the area of the AML/internal resource conversion code. The
|
|
code has been optimized to simplify and eliminate duplicated code, CPU stack
|
|
use has been decreased by optimizing function parameters and local
|
|
variables, and naming conventions across the manager have been standardized
|
|
for clarity and ease of maintenance (this includes function, parameter,
|
|
variable, and struct/typedef names.) The update may force changes in some
|
|
driver code, depending on how resources are handled by the host OS.
|
|
|
|
All Resource Manager dispatch and information tables have been moved to a
|
|
single location for clarity and ease of maintenance. One new file was
|
|
created, named "rsinfo.c".
|
|
|
|
The ACPI return macros (return_ACPI_STATUS, etc.) have been modified to
|
|
guarantee that the argument is not evaluated twice, making them less prone
|
|
to macro side-effects. However, since there exists the possibility of
|
|
additional stack use if a particular compiler cannot optimize them (such as
|
|
in the debug generation case), the original macros are optionally available.
|
|
Note that some invocations of the return_VALUE macro may now cause size
|
|
mismatch warnings; the return_UINT8 and return_UINT32 macros are provided to
|
|
eliminate these. (From Randy Dunlap)
|
|
|
|
Implemented a new mechanism to enable debug tracing for individual control
|
|
methods. A new external interface, AcpiDebugTrace, is provided to enable
|
|
this mechanism. The intent is to allow the host OS to easily enable and
|
|
disable tracing for problematic control methods. This interface can be
|
|
easily exposed to a user or debugger interface if desired. See the file
|
|
psxface.c for details.
|
|
|
|
AcpiUtCallocate will now return a valid pointer if a length of zero is
|
|
specified - a length of one is used and a warning is issued. This matches
|
|
the behavior of AcpiUtAllocate.
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total
|
|
Debug Version: 168.1K Code, 68.4K Data, 236.5K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total
|
|
Debug Version: 168.0K Code, 68.3K Data, 236.3K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
A remark is issued if the effective compile-time length of a package or
|
|
buffer is zero. Previously, this was a warning.
|
|
|
|
----------------------------------------
|
|
16 September 2005. Summary of changes for version 20050916:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem within the Resource Manager where support for the Generic
|
|
Register descriptor was not fully implemented. This descriptor is now fully
|
|
recognized, parsed, disassembled, and displayed.
|
|
|
|
Completely restructured the Resource Manager code to utilize table-driven
|
|
dispatch and lookup, eliminating many of the large switch() statements. This
|
|
reduces overall subsystem code size and code complexity. Affects the
|
|
resource parsing and construction, disassembly, and debug dump output.
|
|
|
|
Cleaned up and restructured the debug dump output for all resource
|
|
descriptors. Improved readability of the output and reduced code size.
|
|
|
|
Fixed a problem where changes to internal data structures caused the
|
|
optional ACPI_MUTEX_DEBUG code to fail compilation if specified.
|
|
|
|
Code and Data Size: The current and previous library sizes for the core
|
|
subsystem are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These
|
|
values do not include any ACPI driver or OSPM code. The debug version of the
|
|
code includes the debug output trace mechanism and has a much larger code
|
|
and data size. Note that these values will vary depending on the efficiency
|
|
of the compiler and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total
|
|
Debug Version: 169.6K Code, 69.9K Data, 239.5K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total
|
|
Debug Version: 168.1K Code, 68.4K Data, 236.5K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Updated the disassembler to automatically insert an EndDependentFn() macro
|
|
into the ASL stream if this macro is missing in the original AML code,
|
|
simplifying compilation of the resulting ASL module.
|
|
|
|
Fixed a problem in the disassembler where a disassembled ResourceSource
|
|
string (within a large resource descriptor) was not surrounded by quotes and
|
|
not followed by a comma, causing errors when the resulting ASL module was
|
|
compiled. Also, escape sequences within a ResourceSource string are now
|
|
handled correctly (especially "\\")
|
|
|
|
----------------------------------------
|
|
02 September 2005. Summary of changes for version 20050902:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem with the internal Owner ID allocation and deallocation
|
|
mechanisms for control method execution and recursive method invocation.
|
|
This should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId"
|
|
messages seen on some systems. Recursive method invocation depth is
|
|
currently limited to 255. (Alexey Starikovskiy)
|
|
|
|
Completely eliminated all vestiges of support for the "module-level
|
|
executable code" until this support is fully implemented and debugged. This
|
|
should eliminate the NO_RETURN_VALUE exceptions seen during table load on
|
|
some systems that invoke this support.
|
|
|
|
Fixed a problem within the resource manager code where the transaction flags
|
|
for a 64-bit address descriptor were handled incorrectly in the type-
|
|
specific flag byte.
|
|
|
|
Consolidated duplicate code within the address descriptor resource manager
|
|
code, reducing overall subsystem code size.
|
|
|
|
Fixed a fault when using the AML debugger "disassemble" command to
|
|
disassemble individual control methods.
|
|
|
|
Removed references to the "release_current" directory within the Unix
|
|
release package.
|
|
|
|
Code and Data Size: The current and previous core subsystem library sizes
|
|
are shown below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler. These values do not
|
|
include any ACPI driver or OSPM code. The debug version of the code includes
|
|
the debug output trace mechanism and has a much larger code and data size.
|
|
Note that these values will vary depending on the efficiency of the compiler
|
|
and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total
|
|
Debug Version: 170.0K Code, 69.9K Data, 239.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total
|
|
Debug Version: 169.6K Code, 69.9K Data, 239.5K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented an error check for illegal duplicate values in the interrupt and
|
|
dma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and
|
|
Interrupt().
|
|
|
|
Implemented error checking for the Irq() and IrqNoFlags() macros to detect
|
|
too many values in the interrupt list (16 max) and invalid values in the
|
|
list (range 0 - 15)
|
|
|
|
The maximum length string literal within an ASL file is now restricted to
|
|
200 characters as per the ACPI specification.
|
|
|
|
Fixed a fault when using the -ln option (generate namespace listing).
|
|
|
|
Implemented an error check to determine if a DescriptorName within a
|
|
resource descriptor has already been used within the current scope.
|
|
|
|
----------------------------------------
|
|
15 August 2005. Summary of changes for version 20050815:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented a full bytewise compare to determine if a table load request is
|
|
attempting to load a duplicate table. The compare is performed if the table
|
|
signatures and table lengths match. This will allow different tables with
|
|
the same OEM Table ID and revision to be loaded - probably against the ACPI
|
|
specification, but discovered in the field nonetheless.
|
|
|
|
Added the changes.txt logfile to each of the zipped release packages.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total
|
|
Debug Version: 167.0K Code, 69.9K Data, 236.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total
|
|
Debug Version: 170.0K Code, 69.9K Data, 239.9K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem where incorrect AML code could be generated for Package
|
|
objects if optimization is disabled (via the -oa switch).
|
|
|
|
Fixed a problem with where incorrect AML code is generated for variable-
|
|
length packages when the package length is not specified and the number of
|
|
initializer values is greater than 255.
|
|
|
|
|
|
----------------------------------------
|
|
29 July 2005. Summary of changes for version 20050729:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support to ignore an attempt to install/load a particular ACPI
|
|
table more than once. Apparently there exists BIOS code that repeatedly
|
|
attempts to load the same SSDT upon certain events. With assistance from
|
|
Venkatesh Pallipadi.
|
|
|
|
Restructured the main interface to the AML parser in order to correctly
|
|
handle all exceptional conditions. This will prevent leakage of the OwnerId
|
|
resource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some
|
|
machines. With assistance from Alexey Starikovskiy.
|
|
|
|
Support for "module level code" has been disabled in this version due to a
|
|
number of issues that have appeared on various machines. The support can be
|
|
enabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem
|
|
compilation. When the issues are fully resolved, the code will be enabled by
|
|
default again.
|
|
|
|
Modified the internal functions for debug print support to define the
|
|
FunctionName parameter as a (const char *) for compatibility with compiler
|
|
built-in macros such as __FUNCTION__, etc.
|
|
|
|
Linted the entire ACPICA source tree for both 32-bit and 64-bit.
|
|
|
|
Implemented support to display an object count summary for the AML Debugger
|
|
commands Object and Methods.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total
|
|
Debug Version: 170.0K Code, 69.7K Data, 239.7K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total
|
|
Debug Version: 167.0K Code, 69.9K Data, 236.9K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a regression that appeared in the 20050708 version of the compiler
|
|
where an error message was inadvertently emitted for invocations of the _OSI
|
|
reserved control method.
|
|
|
|
----------------------------------------
|
|
08 July 2005. Summary of changes for version 20050708:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
The use of the CPU stack in the debug version of the subsystem has been
|
|
considerably reduced. Previously, a debug structure was declared in every
|
|
function that used the debug macros. This structure has been removed in
|
|
favor of declaring the individual elements as parameters to the debug
|
|
functions. This reduces the cumulative stack use during nested execution of
|
|
ACPI function calls at the cost of a small increase in the code size of the
|
|
debug version of the subsystem. With assistance from Alexey Starikovskiy and
|
|
Len Brown.
|
|
|
|
Added the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent
|
|
headers to define a macro that will return the current function name at
|
|
runtime (such as __FUNCTION__ or _func_, etc.) The function name is used by
|
|
the debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the
|
|
compiler-dependent header, the function name is saved on the CPU stack (one
|
|
pointer per function.) This mechanism is used because apparently there
|
|
exists no standard ANSI-C defined macro that that returns the function name.
|
|
|
|
Redesigned and reimplemented the "Owner ID" mechanism used to track
|
|
namespace objects created/deleted by ACPI tables and control method
|
|
execution. A bitmap is now used to allocate and free the IDs, thus solving
|
|
the wraparound problem present in the previous implementation. The size of
|
|
the namespace node descriptor was reduced by 2 bytes as a result (Alexey
|
|
Starikovskiy).
|
|
|
|
Removed the UINT32_BIT and UINT16_BIT types that were used for the bitfield
|
|
flag definitions within the headers for the predefined ACPI tables. These
|
|
have been replaced by UINT8_BIT in order to increase the code portability of
|
|
the subsystem. If the use of UINT8 remains a problem, we may be forced to
|
|
eliminate bitfields entirely because of a lack of portability.
|
|
|
|
Enhanced the performance of the AcpiUtUpdateObjectReference procedure. This
|
|
is a frequently used function and this improvement increases the performance
|
|
of the entire subsystem (Alexey Starikovskiy).
|
|
|
|
Fixed several possible memory leaks and the inverse - premature object
|
|
deletion (Alexey Starikovskiy).
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total
|
|
Debug Version: 165.2K Code, 69.6K Data, 234.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total
|
|
Debug Version: 170.0K Code, 69.7K Data, 239.7K Total
|
|
|
|
----------------------------------------
|
|
24 June 2005. Summary of changes for version 20050624:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Modified the new OSL cache interfaces to use ACPI_CACHE_T as the type for
|
|
the host-defined cache object. This allows the OSL implementation to define
|
|
and type this object in any manner desired, simplifying the OSL
|
|
implementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for
|
|
Linux, and should be defined in the OS-specific header file for other
|
|
operating systems as required.
|
|
|
|
Changed the interface to AcpiOsAcquireObject to directly return the
|
|
requested object as the function return (instead of ACPI_STATUS.) This
|
|
change was made for performance reasons, since this is the purpose of the
|
|
interface in the first place. AcpiOsAcquireObject is now similar to the
|
|
AcpiOsAllocate interface.
|
|
|
|
Implemented a new AML debugger command named Businfo. This command displays
|
|
information about all devices that have an associate _PRT object. The _ADR,
|
|
_HID, _UID, and _CID are displayed for these devices.
|
|
|
|
Modified the initialization sequence in AcpiInitializeSubsystem to call the
|
|
OSL interface AcpiOslInitialize first, before any local initialization. This
|
|
change was required because the global initialization now calls OSL
|
|
interfaces.
|
|
|
|
Enhanced the Dump command to display the entire contents of Package objects
|
|
(including all sub-objects and their values.)
|
|
|
|
Restructured the code base to split some files because of size and/or
|
|
because the code logically belonged in a separate file. New files are listed
|
|
below. All makefiles and project files included in the ACPI CA release have
|
|
been updated.
|
|
utilities/utcache.c /* Local cache interfaces */
|
|
utilities/utmutex.c /* Local mutex support */
|
|
utilities/utstate.c /* State object support */
|
|
interpreter/parser/psloop.c /* Main AML parse loop */
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total
|
|
Debug Version: 164.0K Code, 69.1K Data, 233.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total
|
|
Debug Version: 165.2K Code, 69.6K Data, 234.8K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a regression introduced in version 20050513 where the use of a Package
|
|
object within a Case() statement caused a compile time exception. The
|
|
original behavior has been restored (a Match() operator is emitted.)
|
|
|
|
----------------------------------------
|
|
17 June 2005. Summary of changes for version 20050617:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Moved the object cache operations into the OS interface layer (OSL) to allow
|
|
the host OS to handle these operations if desired (for example, the Linux
|
|
OSL will invoke the slab allocator). This support is optional; the compile
|
|
time define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache
|
|
code in the ACPI CA core. The new OSL interfaces are shown below. See
|
|
utalloc.c for an example implementation, and acpiosxf.h for the exact
|
|
interface definitions. With assistance from Alexey Starikovskiy.
|
|
AcpiOsCreateCache
|
|
AcpiOsDeleteCache
|
|
AcpiOsPurgeCache
|
|
AcpiOsAcquireObject
|
|
AcpiOsReleaseObject
|
|
|
|
Modified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return
|
|
and restore a flags parameter. This fits better with many OS lock models.
|
|
Note: the current execution state (interrupt handler or not) is no longer
|
|
passed to these interfaces. If necessary, the OSL must determine this state
|
|
by itself, a simple and fast operation. With assistance from Alexey
|
|
Starikovskiy.
|
|
|
|
Fixed a problem in the ACPI table handling where a valid XSDT was assumed
|
|
present if the revision of the RSDP was 2 or greater. According to the ACPI
|
|
specification, the XSDT is optional in all cases, and the table manager
|
|
therefore now checks for both an RSDP >=2 and a valid XSDT pointer.
|
|
Otherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain
|
|
only the RSDT.
|
|
|
|
Fixed an interpreter problem with the Mid() operator in the case of an input
|
|
string where the resulting output string is of zero length. It now correctly
|
|
returns a valid, null terminated string object instead of a string object
|
|
with a null pointer.
|
|
|
|
Fixed a problem with the control method argument handling to allow a store
|
|
to an Arg object that already contains an object of type Device. The Device
|
|
object is now correctly overwritten. Previously, an error was returned.
|
|
|
|
|
|
Enhanced the debugger Find command to emit object values in addition to the
|
|
found object pathnames. The output format is the same as the dump namespace
|
|
command.
|
|
|
|
Enhanced the debugger Set command. It now has the ability to set the value
|
|
of any Named integer object in the namespace (Previously, only method locals
|
|
and args could be set.)
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total
|
|
Debug Version: 164.0K Code, 69.3K Data, 233.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total
|
|
Debug Version: 164.0K Code, 69.1K Data, 233.1K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a regression in the disassembler where if/else/while constructs were
|
|
output incorrectly. This problem was introduced in the previous release
|
|
(20050526). This problem also affected the single-step disassembly in the
|
|
debugger.
|
|
|
|
Fixed a problem where compiling the reserved _OSI method would randomly (but
|
|
rarely) produce compile errors.
|
|
|
|
Enhanced the disassembler to emit compilable code in the face of incorrect
|
|
AML resource descriptors. If the optional ResourceSourceIndex is present,
|
|
but the ResourceSource is not, do not emit the ResourceSourceIndex in the
|
|
disassembly. Otherwise, the resulting code cannot be compiled without
|
|
errors.
|
|
|
|
----------------------------------------
|
|
26 May 2005. Summary of changes for version 20050526:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support to execute Type 1 and Type 2 AML opcodes appearing at
|
|
the module level (not within a control method.) These opcodes are executed
|
|
exactly once at the time the table is loaded. This type of code was legal up
|
|
until the release of ACPI 2.0B (2002) and is now supported within ACPI CA in
|
|
order to provide backwards compatibility with earlier BIOS implementations.
|
|
This eliminates the "Encountered executable code at module level" warning
|
|
that was previously generated upon detection of such code.
|
|
|
|
Fixed a problem in the interpreter where an AE_NOT_FOUND exception could
|
|
inadvertently be generated during the lookup of namespace objects in the
|
|
second pass parse of ACPI tables and control methods. It appears that this
|
|
problem could occur during the resolution of forward references to namespace
|
|
objects.
|
|
|
|
Added the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function,
|
|
corresponding to the same #ifdef in the AcpiUtAcquireMutex function. This
|
|
allows the deadlock detection debug code to be compiled out in the normal
|
|
case, improving mutex performance (and overall subsystem performance)
|
|
considerably.
|
|
|
|
Implemented a handful of miscellaneous fixes for possible memory leaks on
|
|
error conditions and error handling control paths. These fixes were
|
|
suggested by FreeBSD and the Coverity Prevent source code analysis tool.
|
|
|
|
Added a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c)
|
|
to prevent a fault in this error case.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total
|
|
Debug Version: 163.7K Code, 69.3K Data, 233.0K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total
|
|
Debug Version: 164.0K Code, 69.3K Data, 233.3K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented support to allow Type 1 and Type 2 ASL operators to appear at
|
|
the module level (not within a control method.) These operators will be
|
|
executed once at the time the table is loaded. This type of code was legal
|
|
up until the release of ACPI 2.0B (2002) and is now supported by the iASL
|
|
compiler in order to provide backwards compatibility with earlier BIOS ASL
|
|
code.
|
|
|
|
The ACPI integer width (specified via the table revision ID or the -r
|
|
override, 32 or 64 bits) is now used internally during compile-time constant
|
|
folding to ensure that constants are truncated to 32 bits if necessary.
|
|
Previously, the revision ID value was only emitted in the AML table header.
|
|
|
|
An error message is now generated for the Mutex and Method operators if the
|
|
SyncLevel parameter is outside the legal range of 0 through 15.
|
|
|
|
Fixed a problem with the Method operator ParameterTypes list handling (ACPI
|
|
3.0). Previously, more than 2 types or 2 arguments generated a syntax error.
|
|
The actual underlying implementation of method argument typechecking is
|
|
still under development, however.
|
|
|
|
----------------------------------------
|
|
13 May 2005. Summary of changes for version 20050513:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support for PCI Express root bridges -- added support for device
|
|
PNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup.
|
|
|
|
The interpreter now automatically truncates incoming 64-bit constants to 32
|
|
bits if currently executing out of a 32-bit ACPI table (Revision < 2). This
|
|
also affects the iASL compiler constant folding. (Note: as per below, the
|
|
iASL compiler no longer allows 64-bit constants within 32-bit tables.)
|
|
|
|
Fixed a problem where string and buffer objects with "static" pointers
|
|
(pointers to initialization data within an ACPI table) were not handled
|
|
consistently. The internal object copy operation now always copies the data
|
|
to a newly allocated buffer, regardless of whether the source object is
|
|
static or not.
|
|
|
|
Fixed a problem with the FromBCD operator where an implicit result
|
|
conversion was improperly performed while storing the result to the target
|
|
operand. Since this is an "explicit conversion" operator, the implicit
|
|
conversion should never be performed on the output.
|
|
|
|
Fixed a problem with the CopyObject operator where a copy to an existing
|
|
named object did not always completely overwrite the existing object stored
|
|
at name. Specifically, a buffer-to-buffer copy did not delete the existing
|
|
buffer.
|
|
|
|
Replaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and
|
|
structs for consistency.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total
|
|
Debug Version: 163.7K Code, 69.3K Data, 233.0K Total
|
|
Current Release: (Same sizes)
|
|
Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total
|
|
Debug Version: 163.7K Code, 69.3K Data, 233.0K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
The compiler now emits a warning if an attempt is made to generate a 64-bit
|
|
integer constant from within a 32-bit ACPI table (Revision < 2). The integer
|
|
is truncated to 32 bits.
|
|
|
|
Fixed a problem with large package objects: if the static length of the
|
|
package is greater than 255, the "variable length package" opcode is
|
|
emitted. Previously, this caused an error. This requires an update to the
|
|
ACPI spec, since it currently (incorrectly) states that packages larger than
|
|
255 elements are not allowed.
|
|
|
|
The disassembler now correctly handles variable length packages and packages
|
|
larger than 255 elements.
|
|
|
|
----------------------------------------
|
|
08 April 2005. Summary of changes for version 20050408:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed three cases in the interpreter where an "index" argument to an ASL
|
|
function was still (internally) 32 bits instead of the required 64 bits.
|
|
This was the Index argument to the Index, Mid, and Match operators.
|
|
|
|
The "strupr" function is now permanently local (AcpiUtStrupr), since this is
|
|
not a POSIX-defined function and not present in most kernel-level C
|
|
libraries. All references to the C library strupr function have been removed
|
|
from the headers.
|
|
|
|
Completed the deployment of static functions/prototypes. All prototypes with
|
|
the static attribute have been moved from the headers to the owning C file.
|
|
|
|
Implemented an extract option (-e) for the AcpiBin utility (AML binary
|
|
utility). This option allows the utility to extract individual ACPI tables
|
|
from the output of AcpiDmp. It provides the same functionality of the
|
|
acpixtract.pl perl script without the worry of setting the correct perl
|
|
options. AcpiBin runs on Windows and has not yet been generated/validated in
|
|
the Linux/Unix environment (but should be soon).
|
|
|
|
Updated and fixed the table dump option for AcpiBin (-d). This option
|
|
converts a single ACPI table to a hex/ascii file, similar to the output of
|
|
AcpiDmp.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total
|
|
Debug Version: 163.5K Code, 69.3K Data, 232.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total
|
|
Debug Version: 163.7K Code, 69.3K Data, 233.0K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Disassembler fix: Added a check to ensure that the table length found in the
|
|
ACPI table header within the input file is not longer than the actual input
|
|
file size. This indicates some kind of file or table corruption.
|
|
|
|
----------------------------------------
|
|
29 March 2005. Summary of changes for version 20050329:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
An error is now generated if an attempt is made to create a Buffer Field of
|
|
length zero (A CreateField with a length operand of zero.)
|
|
|
|
The interpreter now issues a warning whenever executable code at the module
|
|
level is detected during ACPI table load. This will give some idea of the
|
|
prevalence of this type of code.
|
|
|
|
Implemented support for references to named objects (other than control
|
|
methods) within package objects.
|
|
|
|
Enhanced package object output for the debug object. Package objects are now
|
|
completely dumped, showing all elements.
|
|
|
|
Enhanced miscellaneous object output for the debug object. Any object can
|
|
now be written to the debug object (for example, a device object can be
|
|
written, and the type of the object will be displayed.)
|
|
|
|
The "static" qualifier has been added to all local functions across both the
|
|
core subsystem and the iASL compiler.
|
|
|
|
The number of "long" lines (> 80 chars) within the source has been
|
|
significantly reduced, by about 1/3.
|
|
|
|
Cleaned up all header files to ensure that all CA/iASL functions are
|
|
prototyped (even static functions) and the formatting is consistent.
|
|
|
|
Two new header files have been added, acopcode.h and acnames.h.
|
|
|
|
Removed several obsolete functions that were no longer used.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
|
|
Debug Version: 165.4K Code, 69.7K Data, 236.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total
|
|
Debug Version: 163.5K Code, 69.3K Data, 232.8K Total
|
|
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem with the resource descriptor generation/support. For the
|
|
ResourceSourceIndex and the ResourceSource fields, both must be present, or
|
|
both must be not present - can't have one without the other.
|
|
|
|
The compiler now returns non-zero from the main procedure if any errors have
|
|
occurred during the compilation.
|
|
|
|
|
|
----------------------------------------
|
|
09 March 2005. Summary of changes for version 20050309:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
The string-to-buffer implicit conversion code has been modified again after
|
|
a change to the ACPI specification. In order to match the behavior of the
|
|
other major ACPI implementation, the target buffer is no longer truncated if
|
|
the source string is smaller than an existing target buffer. This change
|
|
requires an update to the ACPI spec, and should eliminate the recent
|
|
AE_AML_BUFFER_LIMIT issues.
|
|
|
|
The "implicit return" support was rewritten to a new algorithm that solves
|
|
the general case. Rather than attempt to determine when a method is about to
|
|
exit, the result of every ASL operator is saved momentarily until the very
|
|
next ASL operator is executed. Therefore, no matter how the method exits,
|
|
there will always be a saved implicit return value. This feature is only
|
|
enabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate
|
|
AE_AML_NO_RETURN_VALUE errors when enabled.
|
|
|
|
Implemented implicit conversion support for the predicate (operand) of the
|
|
If, Else, and While operators. String and Buffer arguments are automatically
|
|
converted to Integers.
|
|
|
|
Changed the string-to-integer conversion behavior to match the new ACPI
|
|
errata: "If no integer object exists, a new integer is created. The ASCII
|
|
string is interpreted as a hexadecimal constant. Each string character is
|
|
interpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting
|
|
with the first character as the most significant digit, and ending with the
|
|
first non-hexadecimal character or end-of-string." This means that the first
|
|
non-hex character terminates the conversion and this is the code that was
|
|
changed.
|
|
|
|
Fixed a problem where the ObjectType operator would fail (fault) when used
|
|
on an Index of a Package which pointed to a null package element. The
|
|
operator now properly returns zero (Uninitialized) in this case.
|
|
|
|
Fixed a problem where the While operator used excessive memory by not
|
|
properly popping the result stack during execution. There was no memory leak
|
|
after execution, however. (Code provided by Valery Podrezov.)
|
|
|
|
Fixed a problem where references to control methods within Package objects
|
|
caused the method to be invoked, instead of producing a reference object
|
|
pointing to the method.
|
|
|
|
Restructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to
|
|
improve performance and reduce code size. (Code provided by Alexey
|
|
Starikovskiy.)
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
|
|
Debug Version: 165.4K Code, 69.6K Data, 236.0K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
|
|
Debug Version: 165.4K Code, 69.7K Data, 236.1K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem with the Return operator with no arguments. Since the AML
|
|
grammar for the byte encoding requires an operand for the Return opcode, the
|
|
compiler now emits a Return(Zero) for this case. An ACPI specification
|
|
update has been written for this case.
|
|
|
|
For tables other than the DSDT, namepath optimization is automatically
|
|
disabled. This is because SSDTs can be loaded anywhere in the namespace, the
|
|
compiler has no knowledge of where, and thus cannot optimize namepaths.
|
|
|
|
Added "ProcessorObj" to the ObjectTypeKeyword list. This object type was
|
|
inadvertently omitted from the ACPI specification, and will require an
|
|
update to the spec.
|
|
|
|
The source file scan for ASCII characters is now optional (-a). This change
|
|
was made because some vendors place non-ascii characters within comments.
|
|
However, the scan is simply a brute-force byte compare to ensure all
|
|
characters in the file are in the range 0x00 to 0x7F.
|
|
|
|
Fixed a problem with the CondRefOf operator where the compiler was
|
|
inappropriately checking for the existence of the target. Since the point of
|
|
the operator is to check for the existence of the target at run-time, the
|
|
compiler no longer checks for the target existence.
|
|
|
|
Fixed a problem where errors generated from the internal AML interpreter
|
|
during constant folding were not handled properly, causing a fault.
|
|
|
|
Fixed a problem with overly aggressive range checking for the Stall
|
|
operator. The valid range (max 255) is now only checked if the operand is of
|
|
type Integer. All other operand types cannot be statically checked.
|
|
|
|
Fixed a problem where control method references within the RefOf, DeRefOf,
|
|
and ObjectType operators were not treated properly. They are now treated as
|
|
actual references, not method invocations.
|
|
|
|
Fixed and enhanced the "list namespace" option (-ln). This option was broken
|
|
a number of releases ago.
|
|
|
|
Improved error handling for the Field, IndexField, and BankField operators.
|
|
The compiler now cleanly reports and recovers from errors in the field
|
|
component (FieldUnit) list.
|
|
|
|
Fixed a disassembler problem where the optional ResourceDescriptor fields
|
|
TRS and TTP were not always handled correctly.
|
|
|
|
Disassembler - Comments in output now use "//" instead of "/*"
|
|
|
|
----------------------------------------
|
|
28 February 2005. Summary of changes for version 20050228:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where the result of an Index() operator (an object
|
|
reference) must increment the reference count on the target object for the
|
|
life of the object reference.
|
|
|
|
Implemented AML Interpreter and Debugger support for the new ACPI 3.0
|
|
Extended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace
|
|
resource descriptors.
|
|
|
|
Implemented support in the _OSI method for the ACPI 3.0 "Extended Address
|
|
Space Descriptor" string, indicating interpreter support for the descriptors
|
|
above.
|
|
|
|
Implemented header support for the new ACPI 3.0 FADT flag bits.
|
|
|
|
Implemented header support for the new ACPI 3.0 PCI Express bits for the PM1
|
|
status/enable registers.
|
|
|
|
Updated header support for the MADT processor local Apic struct and MADT
|
|
platform interrupt source struct for new ACPI 3.0 fields.
|
|
|
|
Implemented header support for the SRAT and SLIT ACPI tables.
|
|
|
|
Implemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag
|
|
at runtime.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total
|
|
Debug Version: 164.9K Code, 69.2K Data, 234.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
|
|
Debug Version: 165.4K Code, 69.6K Data, 236.0K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem with the internal 64-bit String-to-integer conversion with
|
|
strings less than two characters long.
|
|
|
|
Fixed a problem with constant folding where the result of the Index()
|
|
operator can not be considered a constant. This means that Index() cannot be
|
|
a type3 opcode and this will require an update to the ACPI specification.
|
|
|
|
Disassembler: Implemented support for the TTP, MTP, and TRS resource
|
|
descriptor fields. These fields were inadvertently ignored and not output in
|
|
the disassembly of the resource descriptor.
|
|
|
|
|
|
----------------------------------------
|
|
11 February 2005. Summary of changes for version 20050211:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented ACPI 3.0 support for implicit conversion within the Match()
|
|
operator. MatchObjects can now be of type integer, buffer, or string instead
|
|
of just type integer. Package elements are implicitly converted to the type
|
|
of the MatchObject. This change aligns the behavior of Match() with the
|
|
behavior of the other logical operators (LLess(), etc.) It also requires an
|
|
errata change to the ACPI specification as this support was intended for
|
|
ACPI 3.0, but was inadvertently omitted.
|
|
|
|
Fixed a problem with the internal implicit "to buffer" conversion. Strings
|
|
that are converted to buffers will cause buffer truncation if the string is
|
|
smaller than the target buffer. Integers that are converted to buffers will
|
|
not cause buffer truncation, only zero extension (both as per the ACPI
|
|
spec.) The problem was introduced when code was added to truncate the
|
|
buffer, but this should not be performed in all cases, only the string case.
|
|
|
|
Fixed a problem with the Buffer and Package operators where the interpreter
|
|
would get confused if two such operators were used as operands to an ASL
|
|
operator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result
|
|
stack was not being popped after the execution of these operators, resulting
|
|
in an AE_NO_RETURN_VALUE exception.
|
|
|
|
Fixed a problem with constructs of the form Store(Index(...),...). The
|
|
reference object returned from Index was inadvertently resolved to an actual
|
|
value. This problem was introduced in version 20050114 when the behavior of
|
|
Store() was modified to restrict the object types that can be used as the
|
|
source operand (to match the ACPI specification.)
|
|
|
|
Reduced excessive stack use within the AcpiGetObjectInfo procedure.
|
|
|
|
Added a fix to aclinux.h to allow generation of AcpiExec on Linux.
|
|
|
|
Updated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total
|
|
Debug Version: 164.8K Code, 69.2K Data, 234.0K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total
|
|
Debug Version: 164.9K Code, 69.2K Data, 234.1K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a code generation problem in the constant folding optimization code
|
|
where incorrect code was generated if a constant was reduced to a buffer
|
|
object (i.e., a reduced type 5 opcode.)
|
|
|
|
Fixed a typechecking problem for the ToBuffer operator. Caused by an
|
|
incorrect return type in the internal opcode information table.
|
|
|
|
----------------------------------------
|
|
25 January 2005. Summary of changes for version 20050125:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a recently introduced problem with the Global Lock where the
|
|
underlying semaphore was not created. This problem was introduced in
|
|
version 20050114, and caused an AE_AML_NO_OPERAND exception during an
|
|
Acquire() operation on _GL.
|
|
|
|
The local object cache is now optional, and is disabled by default. Both
|
|
AcpiExec and the iASL compiler enable the cache because they run in user
|
|
mode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE
|
|
to enable the local cache.
|
|
|
|
Fixed an issue in the internal function AcpiUtEvaluateObject concerning the
|
|
optional "implicit return" support where an error was returned if no return
|
|
object was expected, but one was implicitly returned. AE_OK is now returned
|
|
in this case and the implicitly returned object is deleted.
|
|
AcpiUtEvaluateObject is only occasionally used, and only to execute reserved
|
|
methods such as _STA and _INI where the return type is known up front.
|
|
|
|
Fixed a few issues with the internal convert-to-integer code. It now returns
|
|
an error if an attempt is made to convert a null string, a string of only
|
|
blanks/tabs, or a zero-length buffer. This affects both implicit conversion
|
|
and explicit conversion via the ToInteger() operator.
|
|
|
|
The internal debug code in AcpiUtAcquireMutex has been commented out. It is
|
|
not needed for normal operation and should increase the performance of the
|
|
entire subsystem. The code remains in case it is needed for debug purposes
|
|
again.
|
|
|
|
The AcpiExec source and makefile are included in the Unix/Linux package for
|
|
the first time.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total
|
|
Debug Version: 165.4K Code, 69.4K Data, 234.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total
|
|
Debug Version: 164.8K Code, 69.2K Data, 234.0K Total
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Switch/Case support: A warning is now issued if the type of the Switch value
|
|
cannot be determined at compile time. For example, Switch(Arg0) will
|
|
generate the warning, and the type is assumed to be an integer. As per the
|
|
ACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the
|
|
warning.
|
|
|
|
Switch/Case support: Implemented support for buffer and string objects as
|
|
the switch value. This is an ACPI 3.0 feature, now that LEqual supports
|
|
buffers and strings.
|
|
|
|
Switch/Case support: The emitted code for the LEqual() comparisons now uses
|
|
the switch value as the first operand, not the second. The case value is now
|
|
the second operand, and this allows the case value to be implicitly
|
|
converted to the type of the switch value, not the other way around.
|
|
|
|
Switch/Case support: Temporary variables are now emitted immediately within
|
|
the control method, not at the global level. This means that there are now
|
|
36 temps available per-method, not 36 temps per-module as was the case with
|
|
the earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.)
|
|
|
|
----------------------------------------
|
|
14 January 2005. Summary of changes for version 20050114:
|
|
|
|
Added 2005 copyright to all module headers. This affects every module in
|
|
the core subsystem, iASL compiler, and the utilities.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed an issue with the String-to-Buffer conversion code where the string
|
|
null terminator was not included in the buffer after conversion, but there
|
|
is existing ASL that assumes the string null terminator is included. This is
|
|
the root of the ACPI_AML_BUFFER_LIMIT regression. This problem was
|
|
introduced in the previous version when the code was updated to correctly
|
|
set the converted buffer size as per the ACPI specification. The ACPI spec
|
|
is ambiguous and will be updated to specify that the null terminator must be
|
|
included in the converted buffer. This also affects the ToBuffer() ASL
|
|
operator.
|
|
|
|
Fixed a problem with the Mid() ASL/AML operator where it did not work
|
|
correctly on Buffer objects. Newly created sub-buffers were not being marked
|
|
as initialized.
|
|
|
|
|
|
Fixed a problem in AcpiTbFindTable where incorrect string compares were
|
|
performed on the OemId and OemTableId table header fields. These fields are
|
|
not null terminated, so strncmp is now used instead of strcmp.
|
|
|
|
Implemented a restriction on the Store() ASL/AML operator to align the
|
|
behavior with the ACPI specification. Previously, any object could be used
|
|
as the source operand. Now, the only objects that may be used are Integers,
|
|
Buffers, Strings, Packages, Object References, and DDB Handles. If
|
|
necessary, the original behavior can be restored by enabling the
|
|
EnableInterpreterSlack flag.
|
|
|
|
Enhanced the optional "implicit return" support to allow an implicit return
|
|
value from methods that are invoked externally via the AcpiEvaluateObject
|
|
interface. This enables implicit returns from the _STA and _INI methods,
|
|
for example.
|
|
|
|
Changed the Revision() ASL/AML operator to return the current version of the
|
|
AML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned
|
|
the supported ACPI version (This is the function of the _REV method).
|
|
|
|
Updated the _REV predefined method to return the currently supported version
|
|
of ACPI, now 3.
|
|
|
|
Implemented batch mode option for the AcpiExec utility (-b).
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
|
|
Debug Version: 165.3K Code, 69.4K Data, 234.7K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total
|
|
Debug Version: 165.4K Code, 69.4K Data, 234.8K Total
|
|
|
|
----------------------------------------
|
|
10 December 2004. Summary of changes for version 20041210:
|
|
|
|
ACPI 3.0 support is nearing completion in both the iASL compiler and the
|
|
ACPI CA core subsystem.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem in the ToDecimalString operator where the resulting string
|
|
length was incorrectly calculated. The length is now calculated exactly,
|
|
eliminating incorrect AE_STRING_LIMIT exceptions.
|
|
|
|
Fixed a problem in the ToHexString operator to allow a maximum 200 character
|
|
string to be produced.
|
|
|
|
Fixed a problem in the internal string-to-buffer and buffer-to-buffer copy
|
|
routine where the length of the resulting buffer was not truncated to the
|
|
new size (if the target buffer already existed).
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
|
|
Debug Version: 164.7K Code, 68.5K Data, 233.2K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
|
|
Debug Version: 165.3K Code, 69.4K Data, 234.7K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented the new ACPI 3.0 resource template macros - DWordSpace,
|
|
ExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace.
|
|
Includes support in the disassembler.
|
|
|
|
Implemented support for the new (ACPI 3.0) parameter to the Register macro,
|
|
AccessSize.
|
|
|
|
Fixed a problem where the _HE resource name for the Interrupt macro was
|
|
referencing bit 0 instead of bit 1.
|
|
|
|
Implemented check for maximum 255 interrupts in the Interrupt macro.
|
|
|
|
Fixed a problem with the predefined resource descriptor names where
|
|
incorrect AML code was generated if the offset within the resource buffer
|
|
was 0 or 1. The optimizer shortened the AML code to a single byte opcode
|
|
but did not update the surrounding package lengths.
|
|
|
|
Changes to the Dma macro: All channels within the channel list must be in
|
|
the range 0-7. Maximum 8 channels can be specified. BusMaster operand is
|
|
optional (default is BusMaster).
|
|
|
|
Implemented check for maximum 7 data bytes for the VendorShort macro.
|
|
|
|
The ReadWrite parameter is now optional for the Memory32 and similar macros.
|
|
|
|
----------------------------------------
|
|
03 December 2004. Summary of changes for version 20041203:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
The low-level field insertion/extraction code (exfldio) has been completely
|
|
rewritten to eliminate unnecessary complexity, bugs, and boundary
|
|
conditions.
|
|
|
|
Fixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString
|
|
operators where the input operand could be inadvertently deleted if no
|
|
conversion was necessary (e.g., if the input to ToInteger was an Integer
|
|
object.)
|
|
|
|
Fixed a problem with the ToDecimalString and ToHexString where an incorrect
|
|
exception code was returned if the resulting string would be > 200 chars.
|
|
AE_STRING_LIMIT is now returned.
|
|
|
|
Fixed a problem with the Concatenate operator where AE_OK was always
|
|
returned, even if the operation failed.
|
|
|
|
Fixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128
|
|
semaphores to be allocated.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total
|
|
Debug Version: 165.2K Code, 68.6K Data, 233.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total
|
|
Debug Version: 164.7K Code, 68.5K Data, 233.2K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed typechecking for the ObjectType and SizeOf operators. Problem was
|
|
recently introduced in 20041119.
|
|
|
|
Fixed a problem with the ToUUID macro where the upper nybble of each buffer
|
|
byte was inadvertently set to zero.
|
|
|
|
----------------------------------------
|
|
19 November 2004. Summary of changes for version 20041119:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem in the internal ConvertToInteger routine where new integers
|
|
were not truncated to 32 bits for 32-bit ACPI tables. This routine converts
|
|
buffers and strings to integers.
|
|
|
|
Implemented support to store a value to an Index() on a String object. This
|
|
is an ACPI 2.0 feature that had not yet been implemented.
|
|
|
|
Implemented new behavior for storing objects to individual package elements
|
|
(via the Index() operator). The previous behavior was to invoke the implicit
|
|
conversion rules if an object was already present at the index. The new
|
|
behavior is to simply delete any existing object and directly store the new
|
|
object. Although the ACPI specification seems unclear on this subject, other
|
|
ACPI implementations behave in this manner. (This is the root of the
|
|
AE_BAD_HEX_CONSTANT issue.)
|
|
|
|
Modified the RSDP memory scan mechanism to support the extended checksum for
|
|
ACPI 2.0 (and above) RSDPs. Note that the search continues until a valid
|
|
RSDP signature is found with a valid checksum.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total
|
|
Debug Version: 165.2K Code, 68.6K Data, 233.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total
|
|
Debug Version: 165.2K Code, 68.6K Data, 233.8K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a missing semicolon in the aslcompiler.y file.
|
|
|
|
----------------------------------------
|
|
05 November 2004. Summary of changes for version 20041105:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support for FADT revision 2. This was an interim table (between
|
|
ACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register.
|
|
|
|
Implemented optional support to allow uninitialized LocalX and ArgX
|
|
variables in a control method. The variables are initialized to an Integer
|
|
object with a value of zero. This support is enabled by setting the
|
|
AcpiGbl_EnableInterpreterSlack flag to TRUE.
|
|
|
|
Implemented support for Integer objects for the SizeOf operator. Either 4
|
|
or 8 is returned, depending on the current integer size (32-bit or 64-bit,
|
|
depending on the parent table revision).
|
|
|
|
Fixed a problem in the implementation of the SizeOf and ObjectType operators
|
|
where the operand was resolved to a value too early, causing incorrect
|
|
return values for some objects.
|
|
|
|
Fixed some possible memory leaks during exceptional conditions.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total
|
|
Debug Version: 164.8K Code, 68.6K Data, 233.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total
|
|
Debug Version: 165.2K Code, 68.6K Data, 233.8K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented support for all ACPI 3.0 reserved names and methods.
|
|
|
|
Implemented all ACPI 3.0 grammar elements in the front-end, including
|
|
support for semicolons.
|
|
|
|
Implemented the ACPI 3.0 Function() and ToUUID() macros
|
|
|
|
Fixed a problem in the disassembler where a Scope() operator would not be
|
|
emitted properly if the target of the scope was in another table.
|
|
|
|
----------------------------------------
|
|
15 October 2004. Summary of changes for version 20041015:
|
|
|
|
Note: ACPI CA is currently undergoing an in-depth and complete formal
|
|
evaluation to test/verify the following areas. Other suggestions are
|
|
welcome. This will result in an increase in the frequency of releases and
|
|
the number of bug fixes in the next few months.
|
|
- Functional tests for all ASL/AML operators
|
|
- All implicit/explicit type conversions
|
|
- Bit fields and operation regions
|
|
- 64-bit math support and 32-bit-only "truncated" math support
|
|
- Exceptional conditions, both compiler and interpreter
|
|
- Dynamic object deletion and memory leaks
|
|
- ACPI 3.0 support when implemented
|
|
- External interfaces to the ACPI subsystem
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed two alignment issues on 64-bit platforms - within debug statements in
|
|
AcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address
|
|
field within the non-aligned ACPI generic address structure.
|
|
|
|
Fixed a problem in the Increment and Decrement operators where incorrect
|
|
operand resolution could result in the inadvertent modification of the
|
|
original integer when the integer is passed into another method as an
|
|
argument and the arg is then incremented/decremented.
|
|
|
|
Fixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit
|
|
BCD number were truncated during conversion.
|
|
|
|
Fixed a problem in the ToDecimal operator where the length of the resulting
|
|
string could be set incorrectly too long if the input operand was a Buffer
|
|
object.
|
|
|
|
Fixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0)
|
|
within a buffer would prematurely terminate a compare between buffer
|
|
objects.
|
|
|
|
Added a check for string overflow (>200 characters as per the ACPI
|
|
specification) during the Concatenate operator with two string operands.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total
|
|
Debug Version: 164.6K Code, 68.5K Data, 233.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total
|
|
Debug Version: 164.8K Code, 68.6K Data, 233.4K Total
|
|
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Allow the use of the ObjectType operator on uninitialized Locals and Args
|
|
(returns 0 as per the ACPI specification).
|
|
|
|
Fixed a problem where the compiler would fault if there was a syntax error
|
|
in the FieldName of all of the various CreateXXXField operators.
|
|
|
|
Disallow the use of lower case letters within the EISAID macro, as per the
|
|
ACPI specification. All EISAID strings must be of the form "UUUNNNN" Where
|
|
U is an uppercase letter and N is a hex digit.
|
|
|
|
|
|
----------------------------------------
|
|
06 October 2004. Summary of changes for version 20041006:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support for the ACPI 3.0 Timer operator. This ASL function
|
|
implements a 64-bit timer with 100 nanosecond granularity.
|
|
|
|
Defined a new OSL interface, AcpiOsGetTimer. This interface is used to
|
|
implement the ACPI 3.0 Timer operator. This allows the host OS to implement
|
|
the timer with the best clock available. Also, it keeps the core subsystem
|
|
out of the clock handling business, since the host OS (usually) performs
|
|
this function.
|
|
|
|
Fixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write)
|
|
functions use a 64-bit address which is part of the packed ACPI Generic
|
|
Address Structure. Since the structure is non-aligned, the alignment macros
|
|
are now used to extract the address to a local variable before use.
|
|
|
|
Fixed a problem where the ToInteger operator assumed all input strings were
|
|
hexadecimal. The operator now handles both decimal strings and hex strings
|
|
(prefixed with "0x").
|
|
|
|
Fixed a problem where the string length in the string object created as a
|
|
result of the internal ConvertToString procedure could be incorrect. This
|
|
potentially affected all implicit conversions and also the ToDecimalString
|
|
and ToHexString operators.
|
|
|
|
Fixed two problems in the ToString operator. If the length parameter was
|
|
zero, an incorrect string object was created and the value of the input
|
|
length parameter was inadvertently changed from zero to Ones.
|
|
|
|
Fixed a problem where the optional ResourceSource string in the ExtendedIRQ
|
|
resource macro was ignored.
|
|
|
|
Simplified the interfaces to the internal division functions, reducing code
|
|
size and complexity.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total
|
|
Debug Version: 164.5K Code, 68.3K Data, 232.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total
|
|
Debug Version: 164.6K Code, 68.5K Data, 233.1K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented support for the ACPI 3.0 Timer operator.
|
|
|
|
Fixed a problem where the Default() operator was inadvertently ignored in a
|
|
Switch/Case block. This was a problem in the translation of the Switch
|
|
statement to If...Else pairs.
|
|
|
|
Added support to allow a standalone Return operator, with no parentheses (or
|
|
operands).
|
|
|
|
Fixed a problem with code generation for the ElseIf operator where the
|
|
translated Else...If parse tree was improperly constructed leading to the
|
|
loss of some code.
|
|
|
|
----------------------------------------
|
|
22 September 2004. Summary of changes for version 20040922:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem with the implementation of the LNot() operator where "Ones"
|
|
was not returned for the TRUE case. Changed the code to return Ones instead
|
|
of (!Arg) which was usually 1. This change affects iASL constant folding for
|
|
this operator also.
|
|
|
|
Fixed a problem in AcpiUtInitializeBuffer where an existing buffer was not
|
|
initialized properly -- Now zero the entire buffer in this case where the
|
|
buffer already exists.
|
|
|
|
Changed the interface to AcpiOsSleep from (UINT32 Seconds, UINT32
|
|
Milliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all
|
|
related code considerably. This will require changes/updates to all OS
|
|
interface layers (OSLs.)
|
|
|
|
Implemented a new external interface, AcpiInstallExceptionHandler, to allow
|
|
a system exception handler to be installed. This handler is invoked upon any
|
|
run-time exception that occurs during control method execution.
|
|
|
|
Added support for the DSDT in AcpiTbFindTable. This allows the
|
|
DataTableRegion() operator to access the local copy of the DSDT.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total
|
|
Debug Version: 164.2K Code, 68.2K Data, 232.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total
|
|
Debug Version: 164.5K Code, 68.3K Data, 232.8K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem with constant folding and the LNot operator. LNot was
|
|
returning 1 in the TRUE case, not Ones as per the ACPI specification. This
|
|
could result in the generation of an incorrect folded/reduced constant.
|
|
|
|
End-Of-File is now allowed within a "//"-style comment. A parse error no
|
|
longer occurs if such a comment is at the very end of the input ASL source
|
|
file.
|
|
|
|
Implemented the "-r" option to override the Revision in the table header.
|
|
The initial use of this option will be to simplify the evaluation of the AML
|
|
interpreter by allowing a single ASL source module to be compiled for either
|
|
32-bit or 64-bit integers.
|
|
|
|
|
|
----------------------------------------
|
|
27 August 2004. Summary of changes for version 20040827:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
- Implemented support for implicit object conversion in the non-numeric
|
|
logical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and
|
|
LNotEqual.) Any combination of Integers/Strings/Buffers may now be used;
|
|
the second operand is implicitly converted on the fly to match the type of
|
|
the first operand. For example:
|
|
|
|
LEqual (Source1, Source2)
|
|
|
|
Source1 and Source2 must each evaluate to an integer, a string, or a buffer.
|
|
The data type of Source1 dictates the required type of Source2. Source2 is
|
|
implicitly converted if necessary to match the type of Source1.
|
|
|
|
- Updated and corrected the behavior of the string conversion support. The
|
|
rules concerning conversion of buffers to strings (according to the ACPI
|
|
specification) are as follows:
|
|
|
|
ToDecimalString - explicit byte-wise conversion of buffer to string of
|
|
decimal values (0-255) separated by commas. ToHexString - explicit byte-wise
|
|
conversion of buffer to string of hex values (0-FF) separated by commas.
|
|
ToString - explicit byte-wise conversion of buffer to string. Byte-by-byte
|
|
copy with no transform except NULL terminated. Any other implicit buffer-to-
|
|
string conversion - byte-wise conversion of buffer to string of hex values
|
|
(0-FF) separated by spaces.
|
|
|
|
- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack.
|
|
|
|
- Fixed a problem in AcpiNsGetPathnameLength where the returned length was
|
|
one byte too short in the case of a node in the root scope. This could
|
|
cause a fault during debug output.
|
|
|
|
- Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total
|
|
Debug Version: 164.1K Code, 68.3K Data, 232.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total
|
|
Debug Version: 164.2K Code, 68.2K Data, 232.4K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
- Fixed a Linux generation error.
|
|
|
|
|
|
----------------------------------------
|
|
16 August 2004. Summary of changes for version 20040816:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Designed and implemented support within the AML interpreter for the so-
|
|
called "implicit return". This support returns the result of the last ASL
|
|
operation within a control method, in the absence of an explicit Return()
|
|
operator. A few machines depend on this behavior, even though it is not
|
|
explicitly supported by the ASL language. It is optional support that can
|
|
be enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag.
|
|
|
|
Removed support for the PCI_Config address space from the internal low level
|
|
hardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This
|
|
support was not used internally, and would not work correctly anyway because
|
|
the PCI bus number and segment number were not supported. There are
|
|
separate interfaces for PCI configuration space access because of the unique
|
|
interface.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total
|
|
Debug Version: 164.1K Code, 68.2K Data, 232.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total
|
|
Debug Version: 164.1K Code, 68.3K Data, 232.4K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem where constants in ASL expressions at the root level (not
|
|
within a control method) could be inadvertently truncated during code
|
|
generation. This problem was introduced in the 20040715 release.
|
|
|
|
|
|
----------------------------------------
|
|
15 July 2004. Summary of changes for version 20040715:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Restructured the internal HW GPE interfaces to pass/track the current state
|
|
of interrupts (enabled/disabled) in order to avoid possible deadlock and
|
|
increase flexibility of the interfaces.
|
|
|
|
Implemented a "lexicographical compare" for String and Buffer objects within
|
|
the logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual --
|
|
as per further clarification to the ACPI specification. Behavior is similar
|
|
to C library "strcmp".
|
|
|
|
Completed a major reduction in CPU stack use for the AcpiGetFirmwareTable
|
|
external function. In the 32-bit non-debug case, the stack use has been
|
|
reduced from 168 bytes to 32 bytes.
|
|
|
|
Deployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack,
|
|
whose purpose is to allow the AML interpreter to forgive certain bad AML
|
|
constructs. Default setting is FALSE.
|
|
|
|
Implemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO
|
|
support code. If enabled, it allows field access to go beyond the end of a
|
|
region definition if the field is within the region length rounded up to the
|
|
next access width boundary (a common coding error.)
|
|
|
|
Renamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to
|
|
ACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these
|
|
symbols are lowercased by the latest version of the AcpiSrc tool.
|
|
|
|
The prototypes for the PCI interfaces in acpiosxf.h have been updated to
|
|
rename "Register" to simply "Reg" to prevent certain compilers from
|
|
complaining.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total
|
|
Debug Version: 163.8K Code, 68.2K Data, 232.0K Total
|
|
Current Release:
|
|
Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total
|
|
Debug Version: 164.1K Code, 68.2K Data, 232.3K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented full support for Package objects within the Case() operator.
|
|
Note: The Break() operator is currently not supported within Case blocks
|
|
(TermLists) as there is some question about backward compatibility with ACPI
|
|
1.0 interpreters.
|
|
|
|
|
|
Fixed a problem where complex terms were not supported properly within the
|
|
Switch() operator.
|
|
|
|
Eliminated extraneous warning for compiler-emitted reserved names of the
|
|
form "_T_x". (Used in Switch/Case operators.)
|
|
|
|
Eliminated optimization messages for "_T_x" objects and small constants
|
|
within the DefinitionBlock operator.
|
|
|
|
|
|
----------------------------------------
|
|
15 June 2004. Summary of changes for version 20040615:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support for Buffer and String objects (as per ACPI 2.0) for the
|
|
following ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and
|
|
LLessEqual.
|
|
|
|
All directory names in the entire source package are lower case, as they
|
|
were in earlier releases.
|
|
|
|
Implemented "Disassemble" command in the AML debugger that will disassemble
|
|
a single control method.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total
|
|
Debug Version: 163.3K Code, 67.2K Data, 230.5K Total
|
|
|
|
Current Release:
|
|
Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total
|
|
Debug Version: 163.8K Code, 68.2K Data, 232.0K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented support for Buffer and String objects (as per ACPI 2.0) for the
|
|
following ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and
|
|
LLessEqual.
|
|
|
|
All directory names in the entire source package are lower case, as they
|
|
were in earlier releases.
|
|
|
|
Fixed a fault when using the -g or -d<nofilename> options if the FADT was
|
|
not found.
|
|
|
|
Fixed an issue with the Windows version of the compiler where later versions
|
|
of Windows place the FADT in the registry under the name "FADT" and not
|
|
"FACP" as earlier versions did. This applies when using the -g or -
|
|
d<nofilename> options. The compiler now looks for both strings as
|
|
necessary.
|
|
|
|
Fixed a problem with compiler namepath optimization where a namepath within
|
|
the Scope() operator could not be optimized if the namepath was a subpath of
|
|
the current scope path.
|
|
|
|
----------------------------------------
|
|
27 May 2004. Summary of changes for version 20040527:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Completed a new design and implementation for EBDA (Extended BIOS Data Area)
|
|
support in the RSDP scan code. The original code improperly scanned for the
|
|
EBDA by simply scanning from memory location 0 to 0x400. The correct method
|
|
is to first obtain the EBDA pointer from within the BIOS data area, then
|
|
scan 1K of memory starting at the EBDA pointer. There appear to be few if
|
|
any machines that place the RSDP in the EBDA, however.
|
|
|
|
Integrated a fix for a possible fault during evaluation of BufferField
|
|
arguments. Obsolete code that was causing the problem was removed.
|
|
|
|
Found and fixed a problem in the Field Support Code where data could be
|
|
corrupted on a bit field read that starts on an aligned boundary but does
|
|
not end on an aligned boundary. Merged the read/write "datum length"
|
|
calculation code into a common procedure.
|
|
|
|
Rolled in a couple of changes to the FreeBSD-specific header.
|
|
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total
|
|
Debug Version: 163.2K Code, 67.2K Data, 230.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total
|
|
Debug Version: 163.3K Code, 67.2K Data, 230.5K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed a generation warning produced by some overly-verbose compilers for a
|
|
64-bit constant.
|
|
|
|
----------------------------------------
|
|
14 May 2004. Summary of changes for version 20040514:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where hardware GPE enable bits sometimes not set properly
|
|
during and after GPE method execution. Result of 04/27 changes.
|
|
|
|
Removed extra "clear all GPEs" when sleeping/waking.
|
|
|
|
Removed AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single
|
|
AcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to
|
|
the new AcpiEv* calls as appropriate.
|
|
|
|
ACPI_OS_NAME was removed from the OS-specific headers. The default name is
|
|
now "Microsoft Windows NT" for maximum compatibility. However this can be
|
|
changed by modifying the acconfig.h file.
|
|
|
|
Allow a single invocation of AcpiInstallNotifyHandler for a handler that
|
|
traps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag.
|
|
|
|
Run _INI methods on ThermalZone objects. This is against the ACPI
|
|
specification, but there is apparently ASL code in the field that has these
|
|
_INI methods, and apparently "other" AML interpreters execute them.
|
|
|
|
Performed a full 16/32/64 bit lint that resulted in some small changes.
|
|
|
|
Added a sleep simulation command to the AML debugger to test sleep code.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total
|
|
Debug Version: 162.9K Code, 67.0K Data, 229.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total
|
|
Debug Version: 163.2K Code, 67.2K Data, 230.4K Total
|
|
|
|
----------------------------------------
|
|
27 April 2004. Summary of changes for version 20040427:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Completed a major overhaul of the GPE handling within ACPI CA. There are
|
|
now three types of GPEs: wake-only, runtime-only, and combination wake/run.
|
|
The only GPEs allowed to be combination wake/run are for button-style
|
|
devices such as a control-method power button, control-method sleep button,
|
|
or a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not
|
|
referenced by any _PRW methods are marked for "runtime" and hardware
|
|
enabled. Any GPE that is referenced by a _PRW method is marked for "wake"
|
|
(and disabled at runtime). However, at sleep time, only those GPEs that
|
|
have been specifically enabled for wake via the AcpiEnableGpe interface will
|
|
actually be hardware enabled.
|
|
|
|
A new external interface has been added, AcpiSetGpeType(), that is meant to
|
|
be used by device drivers to force a GPE to a particular type. It will be
|
|
especially useful for the drivers for the button devices mentioned above.
|
|
|
|
Completed restructuring of the ACPI CA initialization sequence so that
|
|
default operation region handlers are installed before GPEs are initialized
|
|
and the _PRW methods are executed. This will prevent errors when the _PRW
|
|
methods attempt to access system memory or I/O space.
|
|
|
|
GPE enable/disable no longer reads the GPE enable register. We now keep the
|
|
enable info for runtime and wake separate and in the GPE_EVENT_INFO. We
|
|
thus no longer depend on the hardware to maintain these bits.
|
|
|
|
Always clear the wake status and fixed/GPE status bits before sleep, even
|
|
for state S5.
|
|
|
|
Improved the AML debugger output for displaying the GPE blocks and their
|
|
current status.
|
|
|
|
Added new strings for the _OSI method, of the form "Windows 2001 SPx" where
|
|
x = 0,1,2,3,4.
|
|
|
|
Fixed a problem where the physical address was incorrectly calculated when
|
|
the Load() operator was used to directly load from an Operation Region (vs.
|
|
loading from a Field object.) Also added check for minimum table length for
|
|
this case.
|
|
|
|
Fix for multiple mutex acquisition. Restore original thread SyncLevel on
|
|
mutex release.
|
|
|
|
Added ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for
|
|
consistency with the other fields returned.
|
|
|
|
Shrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such
|
|
structure for each GPE in the system, so the size of this structure is
|
|
important.
|
|
|
|
CPU stack requirement reduction: Cleaned up the method execution and object
|
|
evaluation paths so that now a parameter structure is passed, instead of
|
|
copying the various method parameters over and over again.
|
|
|
|
In evregion.c: Correctly exit and reenter the interpreter region if and
|
|
only if dispatching an operation region request to a user-installed handler.
|
|
Do not exit/reenter when dispatching to a default handler (e.g., default
|
|
system memory or I/O handlers)
|
|
|
|
|
|
Notes for updating drivers for the new GPE support. The following changes
|
|
must be made to ACPI-related device drivers that are attached to one or more
|
|
GPEs: (This information will be added to the ACPI CA Programmer Reference.)
|
|
|
|
1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must
|
|
explicitly call AcpiEnableGpe.
|
|
2) There is a new interface called AcpiSetGpeType. This should be called
|
|
before enabling the GPE. Also, this interface will automatically disable
|
|
the GPE if it is currently enabled.
|
|
3) AcpiEnableGpe no longer supports a GPE type flag.
|
|
|
|
Specific drivers that must be changed:
|
|
1) EC driver:
|
|
AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED,
|
|
AeGpeHandler, NULL);
|
|
AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME);
|
|
AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR);
|
|
|
|
2) Button Drivers (Power, Lid, Sleep):
|
|
Run _PRW method under parent device
|
|
If _PRW exists: /* This is a control-method button */
|
|
Extract GPE number and possibly GpeDevice
|
|
AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN);
|
|
AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR);
|
|
|
|
For all other devices that have _PRWs, we automatically set the GPE type to
|
|
ACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This
|
|
must be done on a selective basis, usually requiring some kind of user app
|
|
to allow the user to pick the wake devices.
|
|
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total
|
|
Debug Version: 161.0K Code, 66.3K Data, 227.3K Total
|
|
Current Release:
|
|
|
|
Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total
|
|
Debug Version: 162.9K Code, 67.0K Data, 229.9K Total
|
|
|
|
|
|
|
|
----------------------------------------
|
|
02 April 2004. Summary of changes for version 20040402:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed an interpreter problem where an indirect store through an ArgX
|
|
parameter was incorrectly applying the "implicit conversion rules" during
|
|
the store. From the ACPI specification: "If the target is a method local or
|
|
argument (LocalX or ArgX), no conversion is performed and the result is
|
|
stored directly to the target". The new behavior is to disable implicit
|
|
conversion during ALL stores to an ArgX.
|
|
|
|
Changed the behavior of the _PRW method scan to ignore any and all errors
|
|
returned by a given _PRW. This prevents the scan from aborting from the
|
|
failure of any single _PRW.
|
|
|
|
Moved the runtime configuration parameters from the global init procedure to
|
|
static variables in acglobal.h. This will allow the host to override the
|
|
default values easily.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total
|
|
Debug Version: 160.8K Code, 66.1K Data, 226.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total
|
|
Debug Version: 161.0K Code, 66.3K Data, 227.3K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
iASL now fully disassembles SSDTs. However, External() statements are not
|
|
generated automatically for unresolved symbols at this time. This is a
|
|
planned feature for future implementation.
|
|
|
|
Fixed a scoping problem in the disassembler that occurs when the type of the
|
|
target of a Scope() operator is overridden. This problem caused an
|
|
incorrectly nested internal namespace to be constructed.
|
|
|
|
Any warnings or errors that are emitted during disassembly are now commented
|
|
out automatically so that the resulting file can be recompiled without any
|
|
hand editing.
|
|
|
|
----------------------------------------
|
|
26 March 2004. Summary of changes for version 20040326:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support for "wake" GPEs via interaction between GPEs and the
|
|
_PRW methods. Every GPE that is pointed to by one or more _PRWs is
|
|
identified as a WAKE GPE and by default will no longer be enabled at
|
|
runtime. Previously, we were blindly enabling all GPEs with a corresponding
|
|
_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We
|
|
believe this has been the cause of thousands of "spurious" GPEs on some
|
|
systems.
|
|
|
|
This new GPE behavior is can be reverted to the original behavior (enable
|
|
ALL GPEs at runtime) via a runtime flag.
|
|
|
|
Fixed a problem where aliased control methods could not access objects
|
|
properly. The proper scope within the namespace was not initialized
|
|
(transferred to the target of the aliased method) before executing the
|
|
target method.
|
|
|
|
Fixed a potential race condition on internal object deletion on the return
|
|
object in AcpiEvaluateObject.
|
|
|
|
Integrated a fix for resource descriptors where both _MEM and _MTP were
|
|
being extracted instead of just _MEM. (i.e. bitmask was incorrectly too
|
|
wide, 0x0F instead of 0x03.)
|
|
|
|
Added a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a
|
|
fault in some cases.
|
|
|
|
Updated Notify() values for debug statements in evmisc.c
|
|
|
|
Return proper status from AcpiUtMutexInitialize, not just simply AE_OK.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
|
|
Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total
|
|
Debug Version: 160.3K Code, 66.0K Data, 226.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total
|
|
Debug Version: 160.8K Code, 66.1K Data, 226.9K Total
|
|
|
|
----------------------------------------
|
|
11 March 2004. Summary of changes for version 20040311:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where errors occurring during the parse phase of control
|
|
method execution did not abort cleanly. For example, objects created and
|
|
installed in the namespace were not deleted. This caused all subsequent
|
|
invocations of the method to return the AE_ALREADY_EXISTS exception.
|
|
|
|
Implemented a mechanism to force a control method to "Serialized" execution
|
|
if the method attempts to create namespace objects. (The root of the
|
|
AE_ALREADY_EXISTS problem.)
|
|
|
|
Implemented support for the predefined _OSI "internal" control method.
|
|
Initial supported strings are "Linux", "Windows 2000", "Windows 2001", and
|
|
"Windows 2001.1", and can be easily upgraded for new strings as necessary.
|
|
This feature will allow "other" operating systems to execute the fully
|
|
tested, "Windows" code path through the ASL code
|
|
|
|
Global Lock Support: Now allows multiple acquires and releases with any
|
|
internal thread. Removed concept of "owning thread" for this special mutex.
|
|
|
|
Fixed two functions that were inappropriately declaring large objects on the
|
|
CPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during
|
|
method execution considerably.
|
|
|
|
Fixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the
|
|
S4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT.
|
|
|
|
Fixed a problem where AcpiEvGpeDetect would fault if there were no GPEs
|
|
defined on the machine.
|
|
|
|
Implemented two runtime options: One to force all control method execution
|
|
to "Serialized" to mimic Windows behavior, another to disable _OSI support
|
|
if it causes problems on a given machine.
|
|
|
|
Code and Data Size: Current and previous core subsystem library sizes are
|
|
shown below. These are the code and data sizes for the acpica.lib produced
|
|
by the Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code includes the
|
|
debug output trace mechanism and has a much larger code and data size. Note
|
|
that these values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total
|
|
Debug Version: 158.7K Code, 65.1K Data, 223.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total
|
|
Debug Version: 160.3K Code, 66.0K Data, 226.3K Total
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Fixed an array size problem for FreeBSD that would cause the compiler to
|
|
fault.
|
|
|
|
----------------------------------------
|
|
20 February 2004. Summary of changes for version 20040220:
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented execution of _SxD methods for Device objects in the
|
|
GetObjectInfo interface.
|
|
|
|
Fixed calls to _SST method to pass the correct arguments.
|
|
|
|
Added a call to _SST on wake to restore to "working" state.
|
|
|
|
Check for End-Of-Buffer failure case in the WalkResources interface.
|
|
|
|
Integrated fix for 64-bit alignment issue in acglobal.h by moving two
|
|
structures to the beginning of the file.
|
|
|
|
After wake, clear GPE status register(s) before enabling GPEs.
|
|
|
|
After wake, clear/enable power button. (Perhaps we should clear/enable all
|
|
fixed events upon wake.)
|
|
|
|
Fixed a couple of possible memory leaks in the Namespace manager.
|
|
|
|
Integrated latest acnetbsd.h file.
|
|
|
|
----------------------------------------
|
|
11 February 2004. Summary of changes for version 20040211:
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Completed investigation and implementation of the call-by-reference
|
|
mechanism for control method arguments.
|
|
|
|
Fixed a problem where a store of an object into an indexed package could
|
|
fail if the store occurs within a different method than the method that
|
|
created the package.
|
|
|
|
Fixed a problem where the ToDecimal operator could return incorrect results.
|
|
|
|
Fixed a problem where the CopyObject operator could fail on some of the more
|
|
obscure objects (e.g., Reference objects.)
|
|
|
|
Improved the output of the Debug object to display buffer, package, and
|
|
index objects.
|
|
|
|
Fixed a problem where constructs of the form "RefOf (ArgX)" did not return
|
|
the expected result.
|
|
|
|
Added permanent ACPI_REPORT_ERROR macros for all instances of the
|
|
ACPI_AML_INTERNAL exception.
|
|
|
|
Integrated latest version of acfreebsd.h
|
|
|
|
----------------------------------------
|
|
16 January 2004. Summary of changes for version 20040116:
|
|
|
|
The purpose of this release is primarily to update the copyright years in
|
|
each module, thus causing a huge number of diffs. There are a few small
|
|
functional changes, however.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Improved error messages when there is a problem finding one or more of the
|
|
required base ACPI tables
|
|
|
|
Reintroduced the definition of APIC_HEADER in actbl.h
|
|
|
|
Changed definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h)
|
|
|
|
Removed extraneous reference to NewObj in dsmthdat.c
|
|
|
|
2) iASL compiler
|
|
|
|
Fixed a problem introduced in December that disabled the correct disassembly
|
|
of Resource Templates
|
|
|
|
|
|
----------------------------------------
|
|
03 December 2003. Summary of changes for version 20031203:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Changed the initialization of Operation Regions during subsystem
|
|
init to perform two entire walks of the ACPI namespace; The first
|
|
to initialize the regions themselves, the second to execute the
|
|
_REG methods. This fixed some interdependencies across _REG
|
|
methods found on some machines.
|
|
|
|
Fixed a problem where a Store(Local0, Local1) could simply update
|
|
the object reference count, and not create a new copy of the
|
|
object if the Local1 is uninitialized.
|
|
|
|
Implemented support for the _SST reserved method during sleep
|
|
transitions.
|
|
|
|
Implemented support to clear the SLP_TYP and SLP_EN bits when
|
|
waking up, this is apparently required by some machines.
|
|
|
|
When sleeping, clear the wake status only if SleepState is not S5.
|
|
|
|
Fixed a problem in AcpiRsExtendedIrqResource() where an incorrect
|
|
pointer arithmetic advanced a string pointer too far.
|
|
|
|
Fixed a problem in AcpiTbGetTablePtr() where a garbage pointer
|
|
could be returned if the requested table has not been loaded.
|
|
|
|
Within the support for IRQ resources, restructured the handling of
|
|
the active and edge/level bits.
|
|
|
|
Fixed a few problems in AcpiPsxExecute() where memory could be
|
|
leaked under certain error conditions.
|
|
|
|
Improved error messages for the cases where the ACPI mode could
|
|
not be entered.
|
|
|
|
Code and Data Size: Current and previous core subsystem library
|
|
sizes are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
|
|
these values do not include any ACPI driver or OSPM code. The
|
|
debug version of the code includes the debug output trace
|
|
mechanism and has a much larger code and data size. Note that
|
|
these values will vary depending on the efficiency of the compiler
|
|
and the compiler options used during generation.
|
|
|
|
Previous Release (20031029):
|
|
Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total
|
|
Debug Version: 158.3K Code, 65.0K Data, 223.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total
|
|
Debug Version: 158.7K Code, 65.1K Data, 223.8K Total
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Implemented a fix for the iASL disassembler where a bad index was
|
|
generated. This was most noticeable on 64-bit platforms
|
|
|
|
|
|
----------------------------------------
|
|
29 October 2003. Summary of changes for version 20031029:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
|
|
Fixed a problem where a level-triggered GPE with an associated
|
|
_Lxx control method was incorrectly cleared twice.
|
|
|
|
Fixed a problem with the Field support code where an access can
|
|
occur beyond the end-of-region if the field is non-aligned but
|
|
extends to the very end of the parent region (resulted in an
|
|
AE_AML_REGION_LIMIT exception.)
|
|
|
|
Fixed a problem with ACPI Fixed Events where an RT Clock handler
|
|
would not get invoked on an RTC event. The RTC event bitmasks for
|
|
the PM1 registers were not being initialized properly.
|
|
|
|
Implemented support for executing _STA and _INI methods for
|
|
Processor objects. Although this is currently not part of the
|
|
ACPI specification, there is existing ASL code that depends on the
|
|
init-time execution of these methods.
|
|
|
|
Implemented and deployed a GetDescriptorName function to decode
|
|
the various types of internal descriptors. Guards against null
|
|
descriptors during debug output also.
|
|
|
|
Implemented and deployed a GetNodeName function to extract the 4-
|
|
character namespace node name. This function simplifies the debug
|
|
and error output, as well as guarding against null pointers during
|
|
output.
|
|
|
|
Implemented and deployed the ACPI_FORMAT_UINT64 helper macro to
|
|
simplify the debug and error output of 64-bit integers. This
|
|
macro replaces the HIDWORD and LODWORD macros for dumping these
|
|
integers.
|
|
|
|
Updated the implementation of the Stall() operator to only call
|
|
AcpiOsStall(), and also return an error if the operand is larger
|
|
than 255. This preserves the required behavior of not
|
|
relinquishing the processor, as would happen if AcpiOsSleep() was
|
|
called for "long stalls".
|
|
|
|
Constructs of the form "Store(LocalX,LocalX)" where LocalX is not
|
|
initialized are now treated as NOOPs.
|
|
|
|
Cleaned up a handful of warnings during 64-bit generation.
|
|
|
|
Fixed a reported error where and incorrect GPE number was passed
|
|
to the GPE dispatch handler. This value is only used for error
|
|
output, however. Used this opportunity to clean up and streamline
|
|
the GPE dispatch code.
|
|
|
|
Code and Data Size: Current and previous core subsystem library
|
|
sizes are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
|
|
these values do not include any ACPI driver or OSPM code. The
|
|
|
|
debug version of the code includes the debug output trace
|
|
mechanism and has a much larger code and data size. Note that
|
|
these values will vary depending on the efficiency of the compiler
|
|
and the compiler options used during generation.
|
|
|
|
Previous Release (20031002):
|
|
Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total
|
|
Debug Version: 157.9K Code, 64.8K Data, 222.7K Total
|
|
Current Release:
|
|
Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total
|
|
Debug Version: 158.3K Code, 65.0K Data, 223.3K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler:
|
|
|
|
Updated the iASL compiler to return an error if the operand to the
|
|
Stall() operator is larger than 255.
|
|
|
|
|
|
----------------------------------------
|
|
02 October 2003. Summary of changes for version 20031002:
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem with Index Fields where the index was not
|
|
incremented for fields that require multiple writes to the
|
|
index/data registers (Fields that are wider than the data
|
|
register.)
|
|
|
|
Fixed a problem with all Field objects where a write could go
|
|
beyond the end-of-field if the field was larger than the access
|
|
granularity and therefore required multiple writes to complete the
|
|
request. An extra write beyond the end of the field could happen
|
|
inadvertently.
|
|
|
|
Fixed a problem with Index Fields where a BUFFER_OVERFLOW error
|
|
would incorrectly be returned if the width of the Data Register
|
|
was larger than the specified field access width.
|
|
|
|
Completed fixes for LoadTable() and Unload() and verified their
|
|
operation. Implemented full support for the "DdbHandle" object
|
|
throughout the ACPI CA subsystem.
|
|
|
|
Implemented full support for the MADT and ECDT tables in the ACPI
|
|
CA header files. Even though these tables are not directly
|
|
consumed by ACPI CA, the header definitions are useful for ACPI
|
|
device drivers.
|
|
|
|
Integrated resource descriptor fixes posted to the Linux ACPI
|
|
list. This included checks for minimum descriptor length, and
|
|
support for trailing NULL strings within descriptors that have
|
|
optional string elements.
|
|
|
|
Code and Data Size: Current and previous core subsystem library
|
|
sizes are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
|
|
these values do not include any ACPI driver or OSPM code. The
|
|
debug version of the code includes the debug output trace
|
|
mechanism and has a much larger code and data size. Note that
|
|
these values will vary depending on the efficiency of the compiler
|
|
and the compiler options used during generation.
|
|
|
|
Previous Release (20030918):
|
|
Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total
|
|
Debug Version: 157.3K Code, 64.5K Data, 221.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total
|
|
Debug Version: 157.9K Code, 64.8K Data, 222.7K Total
|
|
|
|
|
|
2) iASL Compiler:
|
|
|
|
Implemented detection of non-ASCII characters within the input
|
|
source ASL file. This catches attempts to compile binary (AML)
|
|
files early in the compile, with an informative error message.
|
|
|
|
Fixed a problem where the disassembler would fault if the output
|
|
filename could not be generated or if the output file could not be
|
|
opened.
|
|
|
|
----------------------------------------
|
|
18 September 2003. Summary of changes for version 20030918:
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Found and fixed a longstanding problem with the late execution of
|
|
the various deferred AML opcodes (such as Operation Regions,
|
|
Buffer Fields, Buffers, and Packages). If the name string
|
|
specified for the name of the new object placed the object in a
|
|
scope other than the current scope, the initialization/execution
|
|
of the opcode failed. The solution to this problem was to
|
|
implement a mechanism where the late execution of such opcodes
|
|
does not attempt to lookup/create the name a second time in an
|
|
incorrect scope. This fixes the "region size computed
|
|
incorrectly" problem.
|
|
|
|
Fixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a
|
|
Global Lock AE_BAD_PARAMETER error.
|
|
|
|
Fixed several 64-bit issues with prototypes, casting and data
|
|
types.
|
|
|
|
Removed duplicate prototype from acdisasm.h
|
|
|
|
Fixed an issue involving EC Operation Region Detach (Shaohua Li)
|
|
|
|
Code and Data Size: Current and previous core subsystem library
|
|
sizes are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
|
|
these values do not include any ACPI driver or OSPM code. The
|
|
debug version of the code includes the debug output trace
|
|
mechanism and has a much larger code and data size. Note that
|
|
these values will vary depending on the efficiency of the compiler
|
|
and the compiler options used during generation.
|
|
|
|
Previous Release:
|
|
|
|
Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total
|
|
Debug Version: 156.9K Code, 64.2K Data, 221.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total
|
|
Debug Version: 157.3K Code, 64.5K Data, 221.8K Total
|
|
|
|
|
|
2) Linux:
|
|
|
|
Fixed the AcpiOsSleep implementation in osunixxf.c to pass the
|
|
correct sleep time in seconds.
|
|
|
|
----------------------------------------
|
|
14 July 2003. Summary of changes for version 20030619:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Parse SSDTs in order discovered, as opposed to reverse order
|
|
(Hrvoje Habjanic)
|
|
|
|
Fixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas
|
|
Klausner,
|
|
Nate Lawson)
|
|
|
|
|
|
2) Linux:
|
|
|
|
Dynamically allocate SDT list (suggested by Andi Kleen)
|
|
|
|
proc function return value cleanups (Andi Kleen)
|
|
|
|
Correctly handle NMI watchdog during long stalls (Andrew Morton)
|
|
|
|
Make it so acpismp=force works (reported by Andrew Morton)
|
|
|
|
|
|
----------------------------------------
|
|
19 June 2003. Summary of changes for version 20030619:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fix To/FromBCD, eliminating the need for an arch-specific #define.
|
|
|
|
Do not acquire a semaphore in the S5 shutdown path.
|
|
|
|
Fix ex_digits_needed for 0. (Takayoshi Kochi)
|
|
|
|
Fix sleep/stall code reversal. (Andi Kleen)
|
|
|
|
Revert a change having to do with control method calling
|
|
semantics.
|
|
|
|
2) Linux:
|
|
|
|
acpiphp update (Takayoshi Kochi)
|
|
|
|
Export acpi_disabled for sonypi (Stelian Pop)
|
|
|
|
Mention acpismp=force in config help
|
|
|
|
Re-add acpitable.c and acpismp=force. This improves backwards
|
|
|
|
compatibility and also cleans up the code to a significant degree.
|
|
|
|
Add ASUS Value-add driver (Karol Kozimor and Julien Lerouge)
|
|
|
|
----------------------------------------
|
|
22 May 2003. Summary of changes for version 20030522:
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Found and fixed a reported problem where an AE_NOT_FOUND error
|
|
occurred occasionally during _BST evaluation. This turned out to
|
|
be an Owner ID allocation issue where a called method did not get
|
|
a new ID assigned to it. Eventually, (after 64k calls), the Owner
|
|
ID UINT16 would wraparound so that the ID would be the same as the
|
|
caller's and the called method would delete the caller's
|
|
namespace.
|
|
|
|
Implemented extended error reporting for control methods that are
|
|
aborted due to a run-time exception. Output includes the exact
|
|
AML instruction that caused the method abort, a dump of the method
|
|
locals and arguments at the time of the abort, and a trace of all
|
|
nested control method calls.
|
|
|
|
Modified the interpreter to allow the creation of buffers of zero
|
|
length from the AML code. Implemented new code to ensure that no
|
|
attempt is made to actually allocate a memory buffer (of length
|
|
zero) - instead, a simple buffer object with a NULL buffer pointer
|
|
and length zero is created. A warning is no longer issued when
|
|
the AML attempts to create a zero-length buffer.
|
|
|
|
Implemented a workaround for the "leading asterisk issue" in
|
|
_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading
|
|
asterisk is automatically removed if present in any HID, UID, or
|
|
CID strings. The iASL compiler will still flag this asterisk as
|
|
an error, however.
|
|
|
|
Implemented full support for _CID methods that return a package of
|
|
multiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface
|
|
now additionally returns a device _CID list if present. This
|
|
required a change to the external interface in order to pass an
|
|
ACPI_BUFFER object as a parameter since the _CID list is of
|
|
variable length.
|
|
|
|
Fixed a problem with the new AE_SAME_HANDLER exception where
|
|
handler initialization code did not know about this exception.
|
|
|
|
Code and Data Size: Current and previous core subsystem library
|
|
sizes are shown below. These are the code and data sizes for the
|
|
acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
|
|
these values do not include any ACPI driver or OSPM code. The
|
|
debug version of the code includes the debug output trace
|
|
mechanism and has a much larger code and data size. Note that
|
|
these values will vary depending on the efficiency of the compiler
|
|
and the compiler options used during generation.
|
|
|
|
Previous Release (20030509):
|
|
Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total
|
|
Debug Version: 156.1K Code, 63.9K Data, 220.0K Total
|
|
Current Release:
|
|
Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total
|
|
Debug Version: 156.9K Code, 64.2K Data, 221.1K Total
|
|
|
|
|
|
2) Linux:
|
|
|
|
Fixed a bug in which we would reinitialize the ACPI interrupt
|
|
after it was already working, thus disabling all ACPI and the IRQs
|
|
for any other device sharing the interrupt. (Thanks to Stian
|
|
Jordet)
|
|
|
|
Toshiba driver update (John Belmonte)
|
|
|
|
Return only 0 or 1 for our interrupt handler status (Andrew
|
|
Morton)
|
|
|
|
|
|
3) iASL Compiler:
|
|
|
|
Fixed a reported problem where multiple (nested) ElseIf()
|
|
statements were not handled correctly by the compiler, resulting
|
|
in incorrect warnings and incorrect AML code. This was a problem
|
|
in both the ASL parser and the code generator.
|
|
|
|
|
|
4) Documentation:
|
|
|
|
Added changes to existing interfaces, new exception codes, and new
|
|
text concerning reference count object management versus garbage
|
|
collection.
|
|
|
|
----------------------------------------
|
|
09 May 2003. Summary of changes for version 20030509.
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Changed the subsystem initialization sequence to hold off
|
|
installation of address space handlers until the hardware has been
|
|
initialized and the system has entered ACPI mode. This is because
|
|
the installation of space handlers can cause _REG methods to be
|
|
run. Previously, the _REG methods could potentially be run before
|
|
ACPI mode was enabled.
|
|
|
|
Fixed some memory leak issues related to address space handler and
|
|
notify handler installation. There were some problems with the
|
|
reference count mechanism caused by the fact that the handler
|
|
objects are shared across several namespace objects.
|
|
|
|
Fixed a reported problem where reference counts within the
|
|
namespace were not properly updated when named objects created by
|
|
method execution were deleted.
|
|
|
|
Fixed a reported problem where multiple SSDTs caused a deletion
|
|
issue during subsystem termination. Restructured the table data
|
|
structures to simplify the linked lists and the related code.
|
|
|
|
Fixed a problem where the table ID associated with secondary
|
|
tables (SSDTs) was not being propagated into the namespace objects
|
|
created by those tables. This would only present a problem for
|
|
tables that are unloaded at run-time, however.
|
|
|
|
Updated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE
|
|
type as the length parameter (instead of UINT32).
|
|
|
|
Solved a long-standing problem where an ALREADY_EXISTS error
|
|
appears on various systems. This problem could happen when there
|
|
are multiple PCI_Config operation regions under a single PCI root
|
|
bus. This doesn't happen very frequently, but there are some
|
|
systems that do this in the ASL.
|
|
|
|
Fixed a reported problem where the internal DeleteNode function
|
|
was incorrectly handling the case where a namespace node was the
|
|
first in the parent's child list, and had additional peers (not
|
|
the only child, but first in the list of children.)
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total
|
|
Debug Version: 156.1K Code, 63.6K Data, 219.7K Total
|
|
Current Release:
|
|
Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total
|
|
Debug Version: 156.1K Code, 63.9K Data, 220.0K Total
|
|
|
|
|
|
2) Linux:
|
|
|
|
Allow ":" in OS override string (Ducrot Bruno)
|
|
|
|
Kobject fix (Greg KH)
|
|
|
|
|
|
3 iASL Compiler/Disassembler:
|
|
|
|
Fixed a problem in the generation of the C source code files (AML
|
|
is emitted in C source statements for BIOS inclusion) where the
|
|
Ascii dump that appears within a C comment at the end of each line
|
|
could cause a compile time error if the AML sequence happens to
|
|
have an open comment or close comment sequence embedded.
|
|
|
|
|
|
----------------------------------------
|
|
24 April 2003. Summary of changes for version 20030424.
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Support for big-endian systems has been implemented. Most of the
|
|
support has been invisibly added behind big-endian versions of the
|
|
ACPI_MOVE_* macros.
|
|
|
|
Fixed a problem in AcpiHwDisableGpeBlock() and
|
|
AcpiHwClearGpeBlock() where an incorrect offset was passed to the
|
|
low level hardware write routine. The offset parameter was
|
|
actually eliminated from the low level read/write routines because
|
|
they had become obsolete.
|
|
|
|
Fixed a problem where a handler object was deleted twice during
|
|
the removal of a fixed event handler.
|
|
|
|
|
|
2) Linux:
|
|
|
|
A fix for SMP systems with link devices was contributed by
|
|
|
|
Compaq's Dan Zink.
|
|
|
|
(2.5) Return whether we handled the interrupt in our IRQ handler.
|
|
(Linux ISRs no longer return void, so we can propagate the handler
|
|
return value from the ACPI CA core back to the OS.)
|
|
|
|
|
|
|
|
3) Documentation:
|
|
|
|
The ACPI CA Programmer Reference has been updated to reflect new
|
|
interfaces and changes to existing interfaces.
|
|
|
|
----------------------------------------
|
|
28 March 2003. Summary of changes for version 20030328.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
The GPE Block Device support has been completed. New interfaces
|
|
are AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event
|
|
interfaces (enable, disable, clear, getstatus) have been split
|
|
into separate interfaces for Fixed Events and General Purpose
|
|
Events (GPEs) in order to support GPE Block Devices properly.
|
|
|
|
Fixed a problem where the error message "Failed to acquire
|
|
semaphore" would appear during operations on the embedded
|
|
controller (EC).
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total
|
|
Debug Version: 154.0K Code, 63.4K Data, 217.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total
|
|
Debug Version: 156.1K Code, 63.6K Data, 219.7K Total
|
|
|
|
|
|
----------------------------------------
|
|
28 February 2003. Summary of changes for version 20030228.
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
The GPE handling and dispatch code has been completely overhauled
|
|
in preparation for support of GPE Block Devices (ID ACPI0006).
|
|
This affects internal data structures and code only; there should
|
|
be no differences visible externally. One new file has been
|
|
added, evgpeblk.c
|
|
|
|
The FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only
|
|
fields that are used to determine the GPE block lengths. The
|
|
REGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address
|
|
structures are ignored. This is per the ACPI specification but it
|
|
isn't very clear. The full 256 Block 0/1 GPEs are now supported
|
|
(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128).
|
|
|
|
In the SCI interrupt handler, removed the read of the PM1_CONTROL
|
|
register to look at the SCI_EN bit. On some machines, this read
|
|
causes an SMI event and greatly slows down SCI events. (This may
|
|
in fact be the cause of slow battery status response on some
|
|
systems.)
|
|
|
|
Fixed a problem where a store of a NULL string to a package object
|
|
could cause the premature deletion of the object. This was seen
|
|
during execution of the battery _BIF method on some systems,
|
|
resulting in no battery data being returned.
|
|
|
|
Added AcpiWalkResources interface to simplify parsing of resource
|
|
lists.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total
|
|
Debug Version: 153.0K Code, 62.9K Data, 215.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total
|
|
Debug Version: 154.0K Code, 63.4K Data, 217.4K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
S3 fixes (Ole Rohne)
|
|
|
|
Update ACPI PHP driver with to use new acpi_walk_resource API
|
|
(Bjorn Helgaas)
|
|
|
|
Add S4BIOS support (Pavel Machek)
|
|
|
|
Map in entire table before performing checksum (John Stultz)
|
|
|
|
Expand the mem= cmdline to allow the specification of reserved and
|
|
ACPI DATA blocks (Pavel Machek)
|
|
|
|
Never use ACPI on VISWS
|
|
|
|
Fix derive_pci_id (Ducrot Bruno, Alvaro Lopez)
|
|
|
|
Revert a change that allowed P_BLK lengths to be 4 or 5. This is
|
|
causing us to think that some systems support C2 when they really
|
|
don't.
|
|
|
|
Do not count processor objects for non-present CPUs (Thanks to
|
|
Dominik Brodowski)
|
|
|
|
|
|
3) iASL Compiler:
|
|
|
|
Fixed a problem where ASL include files could not be found and
|
|
opened.
|
|
|
|
Added support for the _PDC reserved name.
|
|
|
|
|
|
----------------------------------------
|
|
22 January 2003. Summary of changes for version 20030122.
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Added a check for constructs of the form: Store (Local0, Local0)
|
|
where Local0 is not initialized. Apparently, some BIOS
|
|
programmers believe that this is a NOOP. Since this store doesn't
|
|
do anything anyway, the new prototype behavior will ignore this
|
|
error. This is a case where we can relax the strict checking in
|
|
the interpreter in the name of compatibility.
|
|
|
|
|
|
2) Linux
|
|
|
|
The AcpiSrc Source Conversion Utility has been released with the
|
|
Linux package for the first time. This is the utility that is
|
|
used to convert the ACPI CA base source code to the Linux version.
|
|
|
|
(Both) Handle P_BLK lengths shorter than 6 more gracefully
|
|
|
|
(Both) Move more headers to include/acpi, and delete an unused
|
|
header.
|
|
|
|
(Both) Move drivers/acpi/include directory to include/acpi
|
|
|
|
(Both) Boot functions don't use cmdline, so don't pass it around
|
|
|
|
(Both) Remove include of unused header (Adrian Bunk)
|
|
|
|
(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since
|
|
the
|
|
former now also includes the latter, acpiphp.h only needs the one,
|
|
now.
|
|
|
|
(2.5) Make it possible to select method of bios restoring after S3
|
|
resume. [=> no more ugly ifdefs] (Pavel Machek)
|
|
|
|
(2.5) Make proc write interfaces work (Pavel Machek)
|
|
|
|
(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski)
|
|
|
|
(2.5) Break out ACPI Perf code into its own module, under cpufreq
|
|
(Dominik Brodowski)
|
|
|
|
(2.4) S4BIOS support (Ducrot Bruno)
|
|
|
|
(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio
|
|
Visinoni)
|
|
|
|
|
|
3) iASL Compiler:
|
|
|
|
Added support to disassemble SSDT and PSDTs.
|
|
|
|
Implemented support to obtain SSDTs from the Windows registry if
|
|
available.
|
|
|
|
|
|
----------------------------------------
|
|
09 January 2003. Summary of changes for version 20030109.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Changed the behavior of the internal Buffer-to-String conversion
|
|
function. The current ACPI specification states that the contents
|
|
of the buffer are "converted to a string of two-character
|
|
hexadecimal numbers, each separated by a space". Unfortunately,
|
|
this definition is not backwards compatible with existing ACPI 1.0
|
|
implementations (although the behavior was not defined in the ACPI
|
|
1.0 specification). The new behavior simply copies data from the
|
|
buffer to the string until a null character is found or the end of
|
|
the buffer is reached. The new String object is always null
|
|
terminated. This problem was seen during the generation of _BIF
|
|
battery data where incorrect strings were returned for battery
|
|
type, etc. This will also require an errata to the ACPI
|
|
specification.
|
|
|
|
Renamed all instances of NATIVE_UINT and NATIVE_INT to
|
|
ACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively.
|
|
|
|
Copyright in all module headers (both Linux and non-Linux) has be
|
|
updated to 2003.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total
|
|
Debug Version: 153.0K Code, 62.9K Data, 215.9K Total
|
|
Current Release:
|
|
Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total
|
|
Debug Version: 153.0K Code, 62.9K Data, 215.9K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Fixed an oops on module insertion/removal (Matthew Tippett)
|
|
|
|
(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante)
|
|
|
|
(2.5) Replace pr_debug (Randy Dunlap)
|
|
|
|
(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski)
|
|
|
|
(Both) Eliminate spawning of thread from timer callback, in favor
|
|
of schedule_work()
|
|
|
|
(Both) Show Lid status in /proc (Zdenek OGAR Skalak)
|
|
|
|
(Both) Added define for Fixed Function HW region (Matthew Wilcox)
|
|
|
|
(Both) Add missing statics to button.c (Pavel Machek)
|
|
|
|
Several changes have been made to the source code translation
|
|
utility that generates the Linux Code in order to make the code
|
|
more "Linux-like":
|
|
|
|
All typedefs on structs and unions have been removed in keeping
|
|
with the Linux coding style.
|
|
|
|
Removed the non-Linux SourceSafe module revision number from each
|
|
module header.
|
|
|
|
Completed major overhaul of symbols to be lowercased for linux.
|
|
Doubled the number of symbols that are lowercased.
|
|
|
|
Fixed a problem where identifiers within procedure headers and
|
|
within quotes were not fully lower cased (they were left with a
|
|
starting capital.)
|
|
|
|
Some C macros whose only purpose is to allow the generation of 16-
|
|
bit code are now completely removed in the Linux code, increasing
|
|
readability and maintainability.
|
|
|
|
----------------------------------------
|
|
|
|
12 December 2002. Summary of changes for version 20021212.
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where the creation of a zero-length AML Buffer
|
|
would cause a fault.
|
|
|
|
Fixed a problem where a Buffer object that pointed to a static AML
|
|
buffer (in an ACPI table) could inadvertently be deleted, causing
|
|
memory corruption.
|
|
|
|
Fixed a problem where a user buffer (passed in to the external
|
|
ACPI CA interfaces) could be overwritten if the buffer was too
|
|
small to complete the operation, causing memory corruption.
|
|
|
|
Fixed a problem in the Buffer-to-String conversion code where a
|
|
string of length one was always returned, regardless of the size
|
|
of the input Buffer object.
|
|
|
|
Removed the NATIVE_CHAR data type across the entire source due to
|
|
lack of need and lack of consistent use.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total
|
|
Debug Version: 152.7K Code, 62.7K Data, 215.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total
|
|
Debug Version: 153.0K Code, 62.9K Data, 215.9K Total
|
|
|
|
|
|
----------------------------------------
|
|
05 December 2002. Summary of changes for version 20021205.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where a store to a String or Buffer object could
|
|
cause corruption of the DSDT if the object type being stored was
|
|
the same as the target object type and the length of the object
|
|
being stored was equal to or smaller than the original (existing)
|
|
target object. This was seen to cause corruption of battery _BIF
|
|
buffers if the _BIF method modified the buffer on the fly.
|
|
|
|
Fixed a problem where an internal error was generated if a control
|
|
method invocation was used in an OperationRegion, Buffer, or
|
|
Package declaration. This was caused by the deferred parsing of
|
|
the control method and thus the deferred creation of the internal
|
|
method object. The solution to this problem was to create the
|
|
internal method object at the moment the method is encountered in
|
|
the first pass - so that subsequent references to the method will
|
|
able to obtain the required parameter count and thus properly
|
|
parse the method invocation. This problem presented itself as an
|
|
AE_AML_INTERNAL during the pass 1 parse phase during table load.
|
|
|
|
Fixed a problem where the internal String object copy routine did
|
|
not always allocate sufficient memory for the target String object
|
|
and caused memory corruption. This problem was seen to cause
|
|
"Allocation already present in list!" errors as memory allocation
|
|
became corrupted.
|
|
|
|
Implemented a new function for the evaluation of namespace objects
|
|
that allows the specification of the allowable return object
|
|
types. This simplifies a lot of code that checks for a return
|
|
object of one or more specific objects returned from the
|
|
evaluation (such as _STA, etc.) This may become and external
|
|
function if it would be useful to ACPI-related drivers.
|
|
|
|
Completed another round of prefixing #defines with "ACPI_" for
|
|
clarity.
|
|
|
|
Completed additional code restructuring to allow more modular
|
|
linking for iASL compiler and AcpiExec. Several files were split
|
|
creating new files. New files: nsparse.c dsinit.c evgpe.c
|
|
|
|
Implemented an abort mechanism to terminate an executing control
|
|
method via the AML debugger. This feature is useful for debugging
|
|
control methods that depend (wait) for specific hardware
|
|
responses.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total
|
|
Debug Version: 152.9K Code, 63.3K Data, 216.2K Total
|
|
Current Release:
|
|
Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total
|
|
Debug Version: 152.7K Code, 62.7K Data, 215.4K Total
|
|
|
|
|
|
2) iASL Compiler/Disassembler
|
|
|
|
Fixed a compiler code generation problem for "Interrupt" Resource
|
|
Descriptors. If specified in the ASL, the optional "Resource
|
|
Source Index" and "Resource Source" fields were not inserted into
|
|
the correct location within the AML resource descriptor, creating
|
|
an invalid descriptor.
|
|
|
|
Fixed a disassembler problem for "Interrupt" resource descriptors.
|
|
The optional "Resource Source Index" and "Resource Source" fields
|
|
were ignored.
|
|
|
|
|
|
----------------------------------------
|
|
22 November 2002. Summary of changes for version 20021122.
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a reported problem where an object stored to a Method Local
|
|
or Arg was not copied to a new object during the store - the
|
|
object pointer was simply copied to the Local/Arg. This caused
|
|
all subsequent operations on the Local/Arg to also affect the
|
|
original source of the store operation.
|
|
|
|
Fixed a problem where a store operation to a Method Local or Arg
|
|
was not completed properly if the Local/Arg contained a reference
|
|
(from RefOf) to a named field. The general-purpose store-to-
|
|
namespace-node code is now used so that this case is handled
|
|
automatically.
|
|
|
|
Fixed a problem where the internal object copy routine would cause
|
|
a protection fault if the object being copied was a Package and
|
|
contained either 1) a NULL package element or 2) a nested sub-
|
|
package.
|
|
|
|
Fixed a problem with the GPE initialization that resulted from an
|
|
ambiguity in the ACPI specification. One section of the
|
|
specification states that both the address and length of the GPE
|
|
block must be zero if the block is not supported. Another section
|
|
implies that only the address need be zero if the block is not
|
|
supported. The code has been changed so that both the address and
|
|
the length must be non-zero to indicate a valid GPE block (i.e.,
|
|
if either the address or the length is zero, the GPE block is
|
|
invalid.)
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total
|
|
Debug Version: 152.7K Code, 63.2K Data, 215.5K Total
|
|
Current Release:
|
|
Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total
|
|
Debug Version: 152.9K Code, 63.3K Data, 216.2K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Cleaned up EC driver. Exported an external EC read/write
|
|
interface. By going through this, other drivers (most notably
|
|
sonypi) will be able to serialize access to the EC.
|
|
|
|
|
|
3) iASL Compiler/Disassembler
|
|
|
|
Implemented support to optionally generate include files for both
|
|
ASM and C (the -i switch). This simplifies BIOS development by
|
|
automatically creating include files that contain external
|
|
declarations for the symbols that are created within the
|
|
|
|
(optionally generated) ASM and C AML source files.
|
|
|
|
|
|
----------------------------------------
|
|
15 November 2002. Summary of changes for version 20021115.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a memory leak problem where an error during resolution of
|
|
|
|
method arguments during a method invocation from another method
|
|
failed to cleanup properly by deleting all successfully resolved
|
|
argument objects.
|
|
|
|
Fixed a problem where the target of the Index() operator was not
|
|
correctly constructed if the source object was a package. This
|
|
problem has not been detected because the use of a target operand
|
|
with Index() is very rare.
|
|
|
|
Fixed a problem with the Index() operator where an attempt was
|
|
made to delete the operand objects twice.
|
|
|
|
Fixed a problem where an attempt was made to delete an operand
|
|
twice during execution of the CondRefOf() operator if the target
|
|
did not exist.
|
|
|
|
Implemented the first of perhaps several internal create object
|
|
functions that create and initialize a specific object type. This
|
|
consolidates duplicated code wherever the object is created, thus
|
|
shrinking the size of the subsystem.
|
|
|
|
Implemented improved debug/error messages for errors that occur
|
|
during nested method invocations. All executing method pathnames
|
|
are displayed (with the error) as the call stack is unwound - thus
|
|
simplifying debug.
|
|
|
|
Fixed a problem introduced in the 10/02 release that caused
|
|
premature deletion of a buffer object if a buffer was used as an
|
|
ASL operand where an integer operand is required (Thus causing an
|
|
implicit object conversion from Buffer to Integer.) The change in
|
|
the 10/02 release was attempting to fix a memory leak (albeit
|
|
incorrectly.)
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total
|
|
Debug Version: 153.1K Code, 63.3K Data, 216.4K Total
|
|
Current Release:
|
|
Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total
|
|
Debug Version: 152.7K Code, 63.2K Data, 215.5K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Changed the implementation of the ACPI semaphores to use down()
|
|
instead of down_interruptable(). It is important that the
|
|
execution of ACPI control methods not be interrupted by signals.
|
|
Methods must run to completion, or the system may be left in an
|
|
unknown/unstable state.
|
|
|
|
Fixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set.
|
|
(Shawn Starr)
|
|
|
|
|
|
3) iASL Compiler/Disassembler
|
|
|
|
|
|
Changed the default location of output files. All output files
|
|
are now placed in the current directory by default instead of in
|
|
the directory of the source file. This change may affect some
|
|
existing makefiles, but it brings the behavior of the compiler in
|
|
line with other similar tools. The location of the output files
|
|
can be overridden with the -p command line switch.
|
|
|
|
|
|
----------------------------------------
|
|
11 November 2002. Summary of changes for version 20021111.
|
|
|
|
|
|
0) ACPI Specification 2.0B is released and is now available at:
|
|
http://www.acpi.info/index.html
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support for the ACPI 2.0 SMBus Operation Regions.
|
|
This includes the early detection and handoff of the request to
|
|
the SMBus region handler (avoiding all of the complex field
|
|
support code), and support for the bidirectional return packet
|
|
from an SMBus write operation. This paves the way for the
|
|
development of SMBus drivers in each host operating system.
|
|
|
|
Fixed a problem where the semaphore WAIT_FOREVER constant was
|
|
defined as 32 bits, but must be 16 bits according to the ACPI
|
|
specification. This had the side effect of causing ASL
|
|
Mutex/Event timeouts even though the ASL code requested a wait
|
|
forever. Changed all internal references to the ACPI timeout
|
|
parameter to 16 bits to prevent future problems. Changed the name
|
|
of WAIT_FOREVER to ACPI_WAIT_FOREVER.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total
|
|
Debug Version: 152.3K Code, 63.0K Data, 215.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total
|
|
Debug Version: 153.1K Code, 63.3K Data, 216.4K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Module loading/unloading fixes (John Cagle)
|
|
|
|
|
|
3) iASL Compiler/Disassembler
|
|
|
|
Added support for the SMBBlockProcessCall keyword (ACPI 2.0)
|
|
|
|
Implemented support for the disassembly of all SMBus protocol
|
|
keywords (SMBQuick, SMBWord, etc.)
|
|
|
|
----------------------------------------
|
|
01 November 2002. Summary of changes for version 20021101.
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where platforms that have a GPE1 block but no GPE0
|
|
block were not handled correctly. This resulted in a "GPE
|
|
overlap" error message. GPE0 is no longer required.
|
|
|
|
Removed code added in the previous release that inserted nodes
|
|
into the namespace in alphabetical order. This caused some side-
|
|
effects on various machines. The root cause of the problem is
|
|
still under investigation since in theory, the internal ordering
|
|
of the namespace nodes should not matter.
|
|
|
|
|
|
Enhanced error reporting for the case where a named object is not
|
|
found during control method execution. The full ACPI namepath
|
|
(name reference) of the object that was not found is displayed in
|
|
this case.
|
|
|
|
Note: as a result of the overhaul of the namespace object types in
|
|
the previous release, the namespace nodes for the predefined
|
|
scopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE
|
|
instead of ACPI_TYPE_ANY. This simplifies the namespace
|
|
management code but may affect code that walks the namespace tree
|
|
looking for specific object types.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a much larger code and data size. Note that these values will
|
|
vary depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total
|
|
Debug Version: 151.7K Code, 62.4K Data, 214.1K Total
|
|
Current Release:
|
|
Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total
|
|
Debug Version: 152.3K Code, 63.0K Data, 215.3K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Fixed a problem introduced in the previous release where the
|
|
Processor and Thermal objects were not recognized and installed in
|
|
/proc. This was related to the scope type change described above.
|
|
|
|
|
|
3) iASL Compiler/Disassembler
|
|
|
|
Implemented the -g option to get all of the required ACPI tables
|
|
from the registry and save them to files (Windows version of the
|
|
compiler only.) The required tables are the FADT, FACS, and DSDT.
|
|
|
|
Added ACPI table checksum validation during table disassembly in
|
|
order to catch corrupted tables.
|
|
|
|
|
|
----------------------------------------
|
|
22 October 2002. Summary of changes for version 20021022.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented a restriction on the Scope operator that the target
|
|
must already exist in the namespace at the time the operator is
|
|
encountered (during table load or method execution). In other
|
|
words, forward references are not allowed and Scope() cannot
|
|
create a new object. This changes the previous behavior where the
|
|
interpreter would create the name if not found. This new behavior
|
|
correctly enables the search-to-root algorithm during namespace
|
|
lookup of the target name. Because of this upsearch, this fixes
|
|
the known Compaq _SB_.OKEC problem and makes both the AML
|
|
interpreter and iASL compiler compatible with other ACPI
|
|
implementations.
|
|
|
|
Completed a major overhaul of the internal ACPI object types for
|
|
the ACPI Namespace and the associated operand objects. Many of
|
|
these types had become obsolete with the introduction of the two-
|
|
pass namespace load. This cleanup simplifies the code and makes
|
|
the entire namespace load mechanism much clearer and easier to
|
|
understand.
|
|
|
|
Improved debug output for tracking scope opening/closing to help
|
|
diagnose scoping issues. The old scope name as well as the new
|
|
scope name are displayed. Also improved error messages for
|
|
problems with ASL Mutex objects and error messages for GPE
|
|
problems.
|
|
|
|
Cleaned up the namespace dump code, removed obsolete code.
|
|
|
|
All string output (for all namespace/object dumps) now uses the
|
|
common ACPI string output procedure which handles escapes properly
|
|
and does not emit non-printable characters.
|
|
|
|
Fixed some issues with constants in the 64-bit version of the
|
|
local C library (utclib.c)
|
|
|
|
|
|
2) Linux
|
|
|
|
EC Driver: No longer attempts to acquire the Global Lock at
|
|
interrupt level.
|
|
|
|
|
|
3) iASL Compiler/Disassembler
|
|
|
|
Implemented ACPI 2.0B grammar change that disallows all Type 1 and
|
|
2 opcodes outside of a control method. This means that the
|
|
"executable" operators (versus the "namespace" operators) cannot
|
|
be used at the table level; they can only be used within a control
|
|
method.
|
|
|
|
Implemented the restriction on the Scope() operator where the
|
|
target must already exist in the namespace at the time the
|
|
operator is encountered (during ASL compilation). In other words,
|
|
forward references are not allowed and Scope() cannot create a new
|
|
object. This makes the iASL compiler compatible with other ACPI
|
|
implementations and makes the Scope() implementation adhere to the
|
|
ACPI specification.
|
|
|
|
Fixed a problem where namepath optimization for the Alias operator
|
|
was optimizing the wrong path (of the two namepaths.) This caused
|
|
a "Missing alias link" error message.
|
|
|
|
Fixed a problem where an "unknown reserved name" warning could be
|
|
incorrectly generated for names like "_SB" when the trailing
|
|
underscore is not used in the original ASL.
|
|
|
|
Fixed a problem where the reserved name check did not handle
|
|
NamePaths with multiple NameSegs correctly. The first nameseg of
|
|
the NamePath was examined instead of the last NameSeg.
|
|
|
|
|
|
----------------------------------------
|
|
|
|
02 October 2002. Summary of changes for this release.
|
|
|
|
|
|
1) ACPI CA Core Subsystem version 20021002:
|
|
|
|
Fixed a problem where a store/copy of a string to an existing
|
|
string did not always set the string length properly in the String
|
|
object.
|
|
|
|
Fixed a reported problem with the ToString operator where the
|
|
behavior was identical to the ToHexString operator instead of just
|
|
simply converting a raw buffer to a string data type.
|
|
|
|
Fixed a problem where CopyObject and the other "explicit"
|
|
conversion operators were not updating the internal namespace node
|
|
type as part of the store operation.
|
|
|
|
Fixed a memory leak during implicit source operand conversion
|
|
where the original object was not deleted if it was converted to a
|
|
new object of a different type.
|
|
|
|
Enhanced error messages for all problems associated with namespace
|
|
lookups. Common procedure generates and prints the lookup name as
|
|
well as the formatted status.
|
|
|
|
Completed implementation of a new design for the Alias support
|
|
within the namespace. The existing design did not handle the case
|
|
where a new object was assigned to one of the two names due to the
|
|
use of an explicit conversion operator, resulting in the two names
|
|
pointing to two different objects. The new design simply points
|
|
the Alias name to the original name node - not to the object.
|
|
This results in a level of indirection that must be handled in the
|
|
name resolution mechanism.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total
|
|
Debug Version: 150.0K Code, 61.7K Data, 211.7K Total
|
|
Current Release:
|
|
Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total
|
|
Debug Version: 151.7K Code, 62.4K Data, 214.1K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Initialize thermal driver's timer before it is used. (Knut
|
|
Neumann)
|
|
|
|
Allow handling negative celsius values. (Kochi Takayoshi)
|
|
|
|
Fix thermal management and make trip points. R/W (Pavel Machek)
|
|
|
|
Fix /proc/acpi/sleep. (P. Christeas)
|
|
|
|
IA64 fixes. (David Mosberger)
|
|
|
|
Fix reversed logic in blacklist code. (Sergio Monteiro Basto)
|
|
|
|
Replace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik
|
|
Brodowski)
|
|
|
|
|
|
3) iASL Compiler/Disassembler
|
|
|
|
Clarified some warning/error messages.
|
|
|
|
|
|
----------------------------------------
|
|
18 September 2002. Summary of changes for this release.
|
|
|
|
|
|
1) ACPI CA Core Subsystem version 20020918:
|
|
|
|
Fixed a reported problem with reference chaining (via the Index()
|
|
and RefOf() operators) in the ObjectType() and SizeOf() operators.
|
|
The definition of these operators includes the dereferencing of
|
|
all chained references to return information on the base object.
|
|
|
|
Fixed a problem with stores to indexed package elements - the
|
|
existing code would not complete the store if an "implicit
|
|
conversion" was not performed. In other words, if the existing
|
|
object (package element) was to be replaced completely, the code
|
|
didn't handle this case.
|
|
|
|
Relaxed typechecking on the ASL "Scope" operator to allow the
|
|
target name to refer to an object of type Integer, String, or
|
|
Buffer, in addition to the scoping object types (Device,
|
|
predefined Scopes, Processor, PowerResource, and ThermalZone.)
|
|
This allows existing AML code that has workarounds for a bug in
|
|
Windows to function properly. A warning is issued, however. This
|
|
affects both the AML interpreter and the iASL compiler. Below is
|
|
an example of this type of ASL code:
|
|
|
|
Name(DEB,0x00)
|
|
Scope(DEB)
|
|
{
|
|
|
|
Fixed some reported problems with 64-bit integer support in the
|
|
local implementation of C library functions (clib.c)
|
|
|
|
|
|
2) Linux
|
|
|
|
Use ACPI fix map region instead of IOAPIC region, since it is
|
|
undefined in non-SMP.
|
|
|
|
Ensure that the SCI has the proper polarity and trigger, even on
|
|
systems that do not have an interrupt override entry in the MADT.
|
|
|
|
2.5 big driver reorganization (Pat Mochel)
|
|
|
|
Use early table mapping code from acpitable.c (Andi Kleen)
|
|
|
|
New blacklist entries (Andi Kleen)
|
|
|
|
Blacklist improvements. Split blacklist code out into a separate
|
|
file. Move checking the blacklist to very early. Previously, we
|
|
would use ACPI tables, and then halfway through init, check the
|
|
blacklist -- too late. Now, it's early enough to completely fall-
|
|
back to non-ACPI.
|
|
|
|
|
|
3) iASL Compiler/Disassembler version 20020918:
|
|
|
|
Fixed a problem where the typechecking code didn't know that an
|
|
alias could point to a method. In other words, aliases were not
|
|
being dereferenced during typechecking.
|
|
|
|
|
|
----------------------------------------
|
|
29 August 2002. Summary of changes for this release.
|
|
|
|
1) ACPI CA Core Subsystem Version 20020829:
|
|
|
|
If the target of a Scope() operator already exists, it must be an
|
|
object type that actually opens a scope -- such as a Device,
|
|
Method, Scope, etc. This is a fatal runtime error. Similar error
|
|
check has been added to the iASL compiler also.
|
|
|
|
Tightened up the namespace load to disallow multiple names in the
|
|
same scope. This previously was allowed if both objects were of
|
|
the same type. (i.e., a lookup was the same as entering a new
|
|
name).
|
|
|
|
|
|
2) Linux
|
|
|
|
Ensure that the ACPI interrupt has the proper trigger and
|
|
polarity.
|
|
|
|
local_irq_disable is extraneous. (Matthew Wilcox)
|
|
|
|
Make "acpi=off" actually do what it says, and not use the ACPI
|
|
interpreter *or* the tables.
|
|
|
|
Added arch-neutral support for parsing SLIT and SRAT tables (Kochi
|
|
Takayoshi)
|
|
|
|
|
|
3) iASL Compiler/Disassembler Version 20020829:
|
|
|
|
Implemented namepath optimization for name declarations. For
|
|
example, a declaration like "Method (\_SB_.ABCD)" would get
|
|
optimized to "Method (ABCD)" if the declaration is within the
|
|
\_SB_ scope. This optimization is in addition to the named
|
|
reference path optimization first released in the previous
|
|
version. This would seem to complete all possible optimizations
|
|
for namepaths within the ASL/AML.
|
|
|
|
If the target of a Scope() operator already exists, it must be an
|
|
object type that actually opens a scope -- such as a Device,
|
|
Method, Scope, etc.
|
|
|
|
Implemented a check and warning for unreachable code in the same
|
|
block below a Return() statement.
|
|
|
|
Fixed a problem where the listing file was not generated if the
|
|
compiler aborted if the maximum error count was exceeded (200).
|
|
|
|
Fixed a problem where the typechecking of method return values was
|
|
broken. This includes the check for a return value when the
|
|
method is invoked as a TermArg (a return value is expected.)
|
|
|
|
Fixed a reported problem where EOF conditions during a quoted
|
|
string or comment caused a fault.
|
|
|
|
|
|
----------------------------------------
|
|
15 August 2002. Summary of changes for this release.
|
|
|
|
1) ACPI CA Core Subsystem Version 20020815:
|
|
|
|
Fixed a reported problem where a Store to a method argument that
|
|
contains a reference did not perform the indirect store correctly.
|
|
This problem was created during the conversion to the new
|
|
reference object model - the indirect store to a method argument
|
|
code was not updated to reflect the new model.
|
|
|
|
Reworked the ACPI mode change code to better conform to ACPI 2.0,
|
|
handle corner cases, and improve code legibility (Kochi Takayoshi)
|
|
|
|
Fixed a problem with the pathname parsing for the carat (^)
|
|
prefix. The heavy use of the carat operator by the new namepath
|
|
optimization in the iASL compiler uncovered a problem with the AML
|
|
interpreter handling of this prefix. In the case where one or
|
|
more carats precede a single nameseg, the nameseg was treated as
|
|
standalone and the search rule (to root) was inadvertently
|
|
applied. This could cause both the iASL compiler and the
|
|
interpreter to find the wrong object or to miss the error that
|
|
should occur if the object does not exist at that exact pathname.
|
|
|
|
Found and fixed the problem where the HP Pavilion DSDT would not
|
|
load. This was a relatively minor tweak to the table loading code
|
|
(a problem caused by the unexpected encounter with a method
|
|
invocation not within a control method), but it does not solve the
|
|
overall issue of the execution of AML code at the table level.
|
|
This investigation is still ongoing.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total
|
|
Debug Version: 149.4K Code, 61.6K Data, 211.0K Total
|
|
Current Release:
|
|
Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total
|
|
Debug Version: 150.0K Code, 61.7K Data, 211.7K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Remove redundant slab.h include (Brad Hards)
|
|
|
|
Fix several bugs in thermal.c (Herbert Nachtnebel)
|
|
|
|
Make CONFIG_ACPI_BOOT work properly (Pavel Machek)
|
|
|
|
Change acpi_system_suspend to use updated irq functions (Pavel
|
|
Machek)
|
|
|
|
Export acpi_get_firmware_table (Matthew Wilcox)
|
|
|
|
Use proper root proc entry for ACPI (Kochi Takayoshi)
|
|
|
|
Fix early-boot table parsing (Bjorn Helgaas)
|
|
|
|
|
|
3) iASL Compiler/Disassembler
|
|
|
|
Reworked the compiler options to make them more consistent and to
|
|
use two-letter options where appropriate. We were running out of
|
|
sensible letters. This may break some makefiles, so check the
|
|
current options list by invoking the compiler with no parameters.
|
|
|
|
Completed the design and implementation of the ASL namepath
|
|
optimization option for the compiler. This option optimizes all
|
|
references to named objects to the shortest possible path. The
|
|
first attempt tries to utilize a single nameseg (4 characters) and
|
|
the "search-to-root" algorithm used by the interpreter. If that
|
|
cannot be used (because either the name is not in the search path
|
|
or there is a conflict with another object with the same name),
|
|
the pathname is optimized using the carat prefix (usually a
|
|
shorter string than specifying the entire path from the root.)
|
|
|
|
Implemented support to obtain the DSDT from the Windows registry
|
|
(when the disassembly option is specified with no input file).
|
|
Added this code as the implementation for AcpiOsTableOverride in
|
|
the Windows OSL. Migrated the 16-bit code (used in the AcpiDump
|
|
utility) to scan memory for the DSDT to the AcpiOsTableOverride
|
|
function in the DOS OSL to make the disassembler truly OS
|
|
independent.
|
|
|
|
Implemented a new option to disassemble and compile in one step.
|
|
When used without an input filename, this option will grab the
|
|
DSDT from the local machine, disassemble it, and compile it in one
|
|
step.
|
|
|
|
Added a warning message for invalid escapes (a backslash followed
|
|
by any character other than the allowable escapes). This catches
|
|
the quoted string error "\_SB_" (which should be "\\_SB_" ).
|
|
|
|
Also, there are numerous instances in the ACPI specification where
|
|
this error occurs.
|
|
|
|
Added a compiler option to disable all optimizations. This is
|
|
basically the "compatibility mode" because by using this option,
|
|
the AML code will come out exactly the same as other ASL
|
|
compilers.
|
|
|
|
Added error messages for incorrectly ordered dependent resource
|
|
functions. This includes: missing EndDependentFn macro at end of
|
|
dependent resource list, nested dependent function macros (both
|
|
start and end), and missing StartDependentFn macro. These are
|
|
common errors that should be caught at compile time.
|
|
|
|
Implemented _OSI support for the disassembler and compiler. _OSI
|
|
must be included in the namespace for proper disassembly (because
|
|
the disassembler must know the number of arguments.)
|
|
|
|
Added an "optimization" message type that is optional (off by
|
|
default). This message is used for all optimizations - including
|
|
constant folding, integer optimization, and namepath optimization.
|
|
|
|
----------------------------------------
|
|
25 July 2002. Summary of changes for this release.
|
|
|
|
|
|
1) ACPI CA Core Subsystem Version 20020725:
|
|
|
|
The AML Disassembler has been enhanced to produce compilable ASL
|
|
code and has been integrated into the iASL compiler (see below) as
|
|
well as the single-step disassembly for the AML debugger and the
|
|
disassembler for the AcpiDump utility. All ACPI 2.0A opcodes,
|
|
resource templates and macros are fully supported. The
|
|
disassembler has been tested on over 30 different AML files,
|
|
producing identical AML when the resulting disassembled ASL file
|
|
is recompiled with the same ASL compiler.
|
|
|
|
Modified the Resource Manager to allow zero interrupts and zero
|
|
dma channels during the GetCurrentResources call. This was
|
|
causing problems on some platforms.
|
|
|
|
Added the AcpiOsRedirectOutput interface to the OSL to simplify
|
|
output redirection for the AcpiOsPrintf and AcpiOsVprintf
|
|
interfaces.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total
|
|
Debug Version: 142.9K Code, 58.7K Data, 201.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total
|
|
Debug Version: 149.4K Code, 61.6K Data, 211.0K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Fixed a panic in the EC driver (Dominik Brodowski)
|
|
|
|
Implemented checksum of the R/XSDT itself during Linux table scan
|
|
(Richard Schaal)
|
|
|
|
|
|
3) iASL compiler
|
|
|
|
The AML disassembler is integrated into the compiler. The "-d"
|
|
option invokes the disassembler to completely disassemble an
|
|
input AML file, producing as output a text ASL file with the
|
|
extension ".dsl" (to avoid name collisions with existing .asl
|
|
source files.) A future enhancement will allow the disassembler
|
|
to obtain the BIOS DSDT from the registry under Windows.
|
|
|
|
Fixed a problem with the VendorShort and VendorLong resource
|
|
descriptors where an invalid AML sequence was created.
|
|
|
|
Implemented a fix for BufferData term in the ASL parser. It was
|
|
inadvertently defined twice, allowing invalid syntax to pass and
|
|
causing reduction conflicts.
|
|
|
|
Fixed a problem where the Ones opcode could get converted to a
|
|
value of zero if "Ones" was used where a byte, word or dword value
|
|
was expected. The 64-bit value is now truncated to the correct
|
|
size with the correct value.
|
|
|
|
|
|
|
|
----------------------------------------
|
|
02 July 2002. Summary of changes for this release.
|
|
|
|
|
|
1) ACPI CA Core Subsystem Version 20020702:
|
|
|
|
The Table Manager code has been restructured to add several new
|
|
features. Tables that are not required by the core subsystem
|
|
(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer
|
|
validated in any way and are returned from AcpiGetFirmwareTable if
|
|
requested. The AcpiOsTableOverride interface is now called for
|
|
each table that is loaded by the subsystem in order to allow the
|
|
host to override any table it chooses. Previously, only the DSDT
|
|
could be overridden. Added one new files, tbrsdt.c and
|
|
tbgetall.c.
|
|
|
|
Fixed a problem with the conversion of internal package objects to
|
|
external objects (when a package is returned from a control
|
|
method.) The return buffer length was set to zero instead of the
|
|
proper length of the package object.
|
|
|
|
Fixed a reported problem with the use of the RefOf and DeRefOf
|
|
operators when passing reference arguments to control methods. A
|
|
new type of Reference object is used internally for references
|
|
produced by the RefOf operator.
|
|
|
|
Added additional error messages in the Resource Manager to explain
|
|
AE_BAD_DATA errors when they occur during resource parsing.
|
|
|
|
Split the AcpiEnableSubsystem into two primitives to enable a
|
|
finer granularity initialization sequence. These two calls should
|
|
be called in this order: AcpiEnableSubsystem (flags),
|
|
AcpiInitializeObjects (flags). The flags parameter remains the
|
|
same.
|
|
|
|
|
|
2) Linux
|
|
|
|
Updated the ACPI utilities module to understand the new style of
|
|
fully resolved package objects that are now returned from the core
|
|
subsystem. This eliminates errors of the form:
|
|
|
|
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT]
|
|
acpi_utils-0430 [145] acpi_evaluate_reference:
|
|
Invalid element in package (not a device reference)
|
|
|
|
The method evaluation utility uses the new buffer allocation
|
|
scheme instead of calling AcpiEvaluate Object twice.
|
|
|
|
Added support for ECDT. This allows the use of the Embedded
|
|
|
|
Controller before the namespace has been fully initialized, which
|
|
is necessary for ACPI 2.0 support, and for some laptops to
|
|
initialize properly. (Laptops using ECDT are still rare, so only
|
|
limited testing was performed of the added functionality.)
|
|
|
|
Fixed memory leaks in the EC driver.
|
|
|
|
Eliminated a brittle code structure in acpi_bus_init().
|
|
|
|
Eliminated the acpi_evaluate() helper function in utils.c. It is
|
|
no longer needed since acpi_evaluate_object can optionally
|
|
allocate memory for the return object.
|
|
|
|
Implemented fix for keyboard hang when getting battery readings on
|
|
some systems (Stephen White)
|
|
|
|
PCI IRQ routing update (Dominik Brodowski)
|
|
|
|
Fix an ifdef to allow compilation on UP with LAPIC but no IOAPIC
|
|
support
|
|
|
|
----------------------------------------
|
|
11 June 2002. Summary of changes for this release.
|
|
|
|
|
|
1) ACPI CA Core Subsystem Version 20020611:
|
|
|
|
Fixed a reported problem where constants such as Zero and One
|
|
appearing within _PRT packages were not handled correctly within
|
|
the resource manager code. Originally reported against the ASL
|
|
compiler because the code generator now optimizes integers to
|
|
their minimal AML representation (i.e. AML constants if possible.)
|
|
The _PRT code now handles all AML constant opcodes correctly
|
|
(Zero, One, Ones, Revision).
|
|
|
|
Fixed a problem with the Concatenate operator in the AML
|
|
interpreter where a buffer result object was incorrectly marked as
|
|
not fully evaluated, causing a run-time error of AE_AML_INTERNAL.
|
|
|
|
All package sub-objects are now fully resolved before they are
|
|
returned from the external ACPI interfaces. This means that name
|
|
strings are resolved to object handles, and constant operators
|
|
(Zero, One, Ones, Revision) are resolved to Integers.
|
|
|
|
Implemented immediate resolution of the AML Constant opcodes
|
|
(Zero, One, Ones, Revision) to Integer objects upon detection
|
|
within the AML stream. This has simplified and reduced the
|
|
generated code size of the subsystem by eliminating about 10
|
|
switch statements for these constants (which previously were
|
|
contained in Reference objects.) The complicating issues are that
|
|
the Zero opcode is used as a "placeholder" for unspecified
|
|
optional target operands and stores to constants are defined to be
|
|
no-ops.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total
|
|
Debug Version: 143.8K Code, 58.8K Data, 202.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total
|
|
Debug Version: 142.9K Code, 58.7K Data, 201.6K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
|
|
Added preliminary support for obtaining _TRA data for PCI root
|
|
bridges (Bjorn Helgaas).
|
|
|
|
|
|
3) iASL Compiler Version X2046:
|
|
|
|
Fixed a problem where the "_DDN" reserved name was defined to be a
|
|
control method with one argument. There are no arguments, and
|
|
_DDN does not have to be a control method.
|
|
|
|
Fixed a problem with the Linux version of the compiler where the
|
|
source lines printed with error messages were the wrong lines.
|
|
This turned out to be the "LF versus CR/LF" difference between
|
|
Windows and Unix. This appears to be the longstanding issue
|
|
concerning listing output and error messages.
|
|
|
|
Fixed a problem with the Linux version of compiler where opcode
|
|
names within error messages were wrong. This was caused by a
|
|
slight difference in the output of the Flex tool on Linux versus
|
|
Windows.
|
|
|
|
Fixed a problem with the Linux compiler where the hex output files
|
|
contained some garbage data caused by an internal buffer overrun.
|
|
|
|
|
|
----------------------------------------
|
|
17 May 2002. Summary of changes for this release.
|
|
|
|
|
|
1) ACPI CA Core Subsystem Version 20020517:
|
|
|
|
Implemented a workaround to an BIOS bug discovered on the HP
|
|
OmniBook where the FADT revision number and the table size are
|
|
inconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new
|
|
behavior is to fallback to using only the ACPI 1.0 fields of the
|
|
FADT if the table is too small to be a ACPI 2.0 table as claimed
|
|
by the revision number. Although this is a BIOS bug, this is a
|
|
case where the workaround is simple enough and with no side
|
|
effects, so it seemed prudent to add it. A warning message is
|
|
issued, however.
|
|
|
|
Implemented minimum size checks for the fixed-length ACPI tables -
|
|
- the FADT and FACS, as well as consistency checks between the
|
|
revision number and the table size.
|
|
|
|
Fixed a reported problem in the table override support where the
|
|
new table pointer was incorrectly treated as a physical address
|
|
instead of a logical address.
|
|
|
|
Eliminated the use of the AE_AML_ERROR exception and replaced it
|
|
with more descriptive codes.
|
|
|
|
Fixed a problem where an exception would occur if an ASL Field was
|
|
defined with no named Field Units underneath it (used by some
|
|
index fields).
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total
|
|
Debug Version: 142.9K Code, 58.4K Data, 201.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total
|
|
Debug Version: 143.8K Code, 58.8K Data, 202.6K Total
|
|
|
|
|
|
|
|
2) Linux
|
|
|
|
Much work done on ACPI init (MADT and PCI IRQ routing support).
|
|
(Paul D. and Dominik Brodowski)
|
|
|
|
Fix PCI IRQ-related panic on boot (Sam Revitch)
|
|
|
|
Set BM_ARB_DIS when entering a sleep state (Ducrot Bruno)
|
|
|
|
Fix "MHz" typo (Dominik Brodowski)
|
|
|
|
Fix RTC year 2000 issue (Dominik Brodowski)
|
|
|
|
Preclude multiple button proc entries (Eric Brunet)
|
|
|
|
Moved arch-specific code out of include/platform/aclinux.h
|
|
|
|
3) iASL Compiler Version X2044:
|
|
|
|
Implemented error checking for the string used in the EISAID macro
|
|
(Usually used in the definition of the _HID object.) The code now
|
|
strictly enforces the PnP format - exactly 7 characters, 3
|
|
uppercase letters and 4 hex digits.
|
|
|
|
If a raw string is used in the definition of the _HID object
|
|
(instead of the EISAID macro), the string must contain all
|
|
alphanumeric characters (e.g., "*PNP0011" is not allowed because
|
|
of the asterisk.)
|
|
|
|
Implemented checking for invalid use of ACPI reserved names for
|
|
most of the name creation operators (Name, Device, Event, Mutex,
|
|
OperationRegion, PowerResource, Processor, and ThermalZone.)
|
|
Previously, this check was only performed for control methods.
|
|
|
|
Implemented an additional check on the Name operator to emit an
|
|
error if a reserved name that must be implemented in ASL as a
|
|
control method is used. We know that a reserved name must be a
|
|
method if it is defined with input arguments.
|
|
|
|
The warning emitted when a namespace object reference is not found
|
|
during the cross reference phase has been changed into an error.
|
|
The "External" directive should be used for names defined in other
|
|
modules.
|
|
|
|
|
|
4) Tools and Utilities
|
|
|
|
The 16-bit tools (adump16 and aexec16) have been regenerated and
|
|
tested.
|
|
|
|
Fixed a problem with the output of both acpidump and adump16 where
|
|
the indentation of closing parentheses and brackets was not
|
|
|
|
aligned properly with the parent block.
|
|
|
|
|
|
----------------------------------------
|
|
03 May 2002. Summary of changes for this release.
|
|
|
|
|
|
1) ACPI CA Core Subsystem Version 20020503:
|
|
|
|
Added support a new OSL interface that allows the host operating
|
|
|
|
system software to override the DSDT found in the firmware -
|
|
AcpiOsTableOverride. With this interface, the OSL can examine the
|
|
version of the firmware DSDT and replace it with a different one
|
|
if desired.
|
|
|
|
Added new external interfaces for accessing ACPI registers from
|
|
device drivers and other system software - AcpiGetRegister and
|
|
AcpiSetRegister. This was simply an externalization of the
|
|
existing AcpiHwBitRegister interfaces.
|
|
|
|
Fixed a regression introduced in the previous build where the
|
|
ASL/AML CreateField operator always returned an error,
|
|
"destination must be a NS Node".
|
|
|
|
Extended the maximum time (before failure) to successfully enable
|
|
ACPI mode to 3 seconds.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total
|
|
Debug Version: 142.4K Code, 58.3K Data, 200.7K Total
|
|
Current Release:
|
|
Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total
|
|
Debug Version: 142.9K Code, 58.4K Data, 201.3K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Enhanced ACPI init code for SMP. We are now fully MPS and $PIR-
|
|
free. While 3 out of 4 of our in-house systems work fine, the last
|
|
one still hangs when testing the LAPIC timer.
|
|
|
|
Renamed many files in 2.5 kernel release to omit "acpi_" from the
|
|
name.
|
|
|
|
Added warning on boot for Presario 711FR.
|
|
|
|
Sleep improvements (Pavel Machek)
|
|
|
|
ACPI can now be built without CONFIG_PCI enabled.
|
|
|
|
IA64: Fixed memory map functions (JI Lee)
|
|
|
|
|
|
3) iASL Compiler Version X2043:
|
|
|
|
Added support to allow the compiler to be integrated into the MS
|
|
VC++ development environment for one-button compilation of single
|
|
files or entire projects -- with error-to-source-line mapping.
|
|
|
|
Implemented support for compile-time constant folding for the
|
|
Type3, Type4, and Type5 opcodes first defined in the ACPI 2.0
|
|
specification. This allows the ASL writer to use expressions
|
|
instead of Integer/Buffer/String constants in terms that must
|
|
evaluate to constants at compile time and will also simplify the
|
|
emitted AML in any such sub-expressions that can be folded
|
|
(evaluated at compile-time.) This increases the size of the
|
|
compiler significantly because a portion of the ACPI CA AML
|
|
interpreter is included within the compiler in order to pre-
|
|
evaluate constant expressions.
|
|
|
|
|
|
Fixed a problem with the "Unicode" ASL macro that caused the
|
|
compiler to fault. (This macro is used in conjunction with the
|
|
_STR reserved name.)
|
|
|
|
Implemented an AML opcode optimization to use the Zero, One, and
|
|
Ones opcodes where possible to further reduce the size of integer
|
|
constants and thus reduce the overall size of the generated AML
|
|
code.
|
|
|
|
Implemented error checking for new reserved terms for ACPI version
|
|
2.0A.
|
|
|
|
Implemented the -qr option to display the current list of ACPI
|
|
reserved names known to the compiler.
|
|
|
|
Implemented the -qc option to display the current list of ASL
|
|
operators that are allowed within constant expressions and can
|
|
therefore be folded at compile time if the operands are constants.
|
|
|
|
|
|
4) Documentation
|
|
|
|
Updated the Programmer's Reference for new interfaces, data types,
|
|
and memory allocation model options.
|
|
|
|
Updated the iASL Compiler User Reference to apply new format and
|
|
add information about new features and options.
|
|
|
|
----------------------------------------
|
|
19 April 2002. Summary of changes for this release.
|
|
|
|
1) ACPI CA Core Subsystem Version 20020419:
|
|
|
|
The source code base for the Core Subsystem has been completely
|
|
cleaned with PC-lint (FlexLint) for both 32-bit and 64-bit
|
|
versions. The Lint option files used are included in the
|
|
/acpi/generate/lint directory.
|
|
|
|
Implemented enhanced status/error checking across the entire
|
|
Hardware manager subsystem. Any hardware errors (reported from
|
|
the OSL) are now bubbled up and will abort a running control
|
|
method.
|
|
|
|
|
|
Fixed a problem where the per-ACPI-table integer width (32 or 64)
|
|
was stored only with control method nodes, causing a fault when
|
|
non-control method code was executed during table loading. The
|
|
solution implemented uses a global variable to indicate table
|
|
width across the entire ACPI subsystem. Therefore, ACPI CA does
|
|
not support mixed integer widths across different ACPI tables
|
|
(DSDT, SSDT).
|
|
|
|
Fixed a problem where NULL extended fields (X fields) in an ACPI
|
|
2.0 ACPI FADT caused the table load to fail. Although the
|
|
existing ACPI specification is a bit fuzzy on this topic, the new
|
|
behavior is to fall back on a ACPI 1.0 field if the corresponding
|
|
ACPI 2.0 X field is zero (even though the table revision indicates
|
|
a full ACPI 2.0 table.) The ACPI specification will be updated to
|
|
clarify this issue.
|
|
|
|
Fixed a problem with the SystemMemory operation region handler
|
|
where memory was always accessed byte-wise even if the AML-
|
|
specified access width was larger than a byte. This caused
|
|
problems on systems with memory-mapped I/O. Memory is now
|
|
accessed with the width specified. On systems that do not support
|
|
non-aligned transfers, a check is made to guarantee proper address
|
|
alignment before proceeding in order to avoid an AML-caused
|
|
alignment fault within the kernel.
|
|
|
|
|
|
Fixed a problem with the ExtendedIrq resource where only one byte
|
|
of the 4-byte Irq field was extracted.
|
|
|
|
Fixed the AcpiExDigitsNeeded() procedure to support _UID. This
|
|
function was out of date and required a rewrite.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total
|
|
Debug Version: 139.8K Code, 57.4K Data, 197.2K Total
|
|
Current Release:
|
|
Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total
|
|
Debug Version: 142.4K Code, 58.3K Data, 200.7K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
PCI IRQ routing fixes (Dominik Brodowski)
|
|
|
|
|
|
3) iASL Compiler Version X2042:
|
|
|
|
Implemented an additional compile-time error check for a field
|
|
unit whose size + minimum access width would cause a run-time
|
|
access beyond the end-of-region. Previously, only the field size
|
|
itself was checked.
|
|
|
|
The Core subsystem and iASL compiler now share a common parse
|
|
object in preparation for compile-time evaluation of the type
|
|
3/4/5 ASL operators.
|
|
|
|
|
|
----------------------------------------
|
|
Summary of changes for this release: 03_29_02
|
|
|
|
1) ACPI CA Core Subsystem Version 20020329:
|
|
|
|
Implemented support for late evaluation of TermArg operands to
|
|
Buffer and Package objects. This allows complex expressions to be
|
|
used in the declarations of these object types.
|
|
|
|
Fixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI
|
|
1.0, if the field was larger than 32 bits, it was returned as a
|
|
buffer - otherwise it was returned as an integer. In ACPI 2.0,
|
|
the field is returned as a buffer only if the field is larger than
|
|
64 bits. The TableRevision is now considered when making this
|
|
conversion to avoid incompatibility with existing ASL code.
|
|
|
|
Implemented logical addressing for AcpiOsGetRootPointer. This
|
|
allows an RSDP with either a logical or physical address. With
|
|
this support, the host OS can now override all ACPI tables with
|
|
one logical RSDP. Includes implementation of "typed" pointer
|
|
support to allow a common data type for both physical and logical
|
|
pointers internally. This required a change to the
|
|
AcpiOsGetRootPointer interface.
|
|
|
|
Implemented the use of ACPI 2.0 Generic Address Structures for all
|
|
GPE, Fixed Event, and PM Timer I/O. This allows the use of memory
|
|
mapped I/O for these ACPI features.
|
|
|
|
Initialization now ignores not only non-required tables (All
|
|
tables other than the FADT, FACS, DSDT, and SSDTs), but also does
|
|
not validate the table headers of unrecognized tables.
|
|
|
|
Fixed a problem where a notify handler could only be
|
|
installed/removed on an object of type Device. All "notify"
|
|
|
|
objects are now supported -- Devices, Processor, Power, and
|
|
Thermal.
|
|
|
|
Removed most verbosity from the ACPI_DB_INFO debug level. Only
|
|
critical information is returned when this debug level is enabled.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release
|
|
Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total
|
|
Debug Version: 138.0K Code, 56.6K Data, 194.6K Total
|
|
Current Release:
|
|
Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total
|
|
Debug Version: 139.8K Code, 57.4K Data, 197.2K Total
|
|
|
|
|
|
2) Linux:
|
|
|
|
The processor driver (acpi_processor.c) now fully supports ACPI
|
|
2.0-based processor performance control (e.g. Intel(R)
|
|
SpeedStep(TM) technology) Note that older laptops that only have
|
|
the Intel "applet" interface are not supported through this. The
|
|
'limit' and 'performance' interface (/proc) are fully functional.
|
|
[Note that basic policy for controlling performance state
|
|
transitions will be included in the next version of ospmd.] The
|
|
idle handler was modified to more aggressively use C2, and PIIX4
|
|
errata handling underwent a complete overhaul (big thanks to
|
|
Dominik Brodowski).
|
|
|
|
Added support for ACPI-PCI device binding (acpi_pci_root.c). _ADR-
|
|
based devices in the ACPI namespace are now dynamically bound
|
|
(associated) with their PCI counterparts (e.g. PCI1->01:00.0).
|
|
This allows, among other things, ACPI to resolve bus numbers for
|
|
subordinate PCI bridges.
|
|
|
|
Enhanced PCI IRQ routing to get the proper bus number for _PRT
|
|
entries defined underneath PCI bridges.
|
|
|
|
Added IBM 600E to bad bios list due to invalid _ADR value for
|
|
PIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing.
|
|
|
|
In the process of adding full MADT support (e.g. IOAPIC) for IA32
|
|
(acpi.c, mpparse.c) -- stay tuned.
|
|
|
|
Added back visual differentiation between fixed-feature and
|
|
control-method buttons in dmesg. Buttons are also subtyped (e.g.
|
|
button/power/PWRF) to simplify button identification.
|
|
|
|
We no longer use -Wno-unused when compiling debug. Please ignore
|
|
any "_THIS_MODULE defined but not used" messages.
|
|
|
|
Can now shut down the system using "magic sysrq" key.
|
|
|
|
|
|
3) iASL Compiler version 2041:
|
|
|
|
Fixed a problem where conversion errors for hex/octal/decimal
|
|
constants were not reported.
|
|
|
|
Implemented a fix for the General Register template Address field.
|
|
This field was 8 bits when it should be 64.
|
|
|
|
Fixed a problem where errors/warnings were no longer being emitted
|
|
within the listing output file.
|
|
|
|
Implemented the ACPI 2.0A restriction on ACPI Table Signatures to
|
|
exactly 4 characters, alphanumeric only.
|
|
|
|
|
|
|
|
|
|
----------------------------------------
|
|
Summary of changes for this release: 03_08_02
|
|
|
|
|
|
1) ACPI CA Core Subsystem Version 20020308:
|
|
|
|
Fixed a problem with AML Fields where the use of the "AccessAny"
|
|
keyword could cause an interpreter error due to attempting to read
|
|
or write beyond the end of the parent Operation Region.
|
|
|
|
Fixed a problem in the SystemMemory Operation Region handler where
|
|
an attempt was made to map memory beyond the end of the region.
|
|
This was the root cause of the "AE_ERROR" and "AE_NO_MEMORY"
|
|
errors on some Linux systems.
|
|
|
|
Fixed a problem where the interpreter/namespace "search to root"
|
|
algorithm was not functioning for some object types. Relaxed the
|
|
internal restriction on the search to allow upsearches for all
|
|
external object types as well as most internal types.
|
|
|
|
|
|
2) Linux:
|
|
|
|
We now use safe_halt() macro versus individual calls to sti | hlt.
|
|
|
|
Writing to the processor limit interface should now work. "echo 1"
|
|
will increase the limit, 2 will decrease, and 0 will reset to the
|
|
|
|
default.
|
|
|
|
|
|
3) ASL compiler:
|
|
|
|
Fixed segfault on Linux version.
|
|
|
|
|
|
----------------------------------------
|
|
Summary of changes for this release: 02_25_02
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
|
|
Fixed a problem where the GPE bit masks were not initialized
|
|
properly, causing erratic GPE behavior.
|
|
|
|
Implemented limited support for multiple calling conventions. The
|
|
code can be generated with either the VPL (variable parameter
|
|
list, or "C") convention, or the FPL (fixed parameter list, or
|
|
"Pascal") convention. The core subsystem is about 3.4% smaller
|
|
when generated with FPL.
|
|
|
|
|
|
2) Linux
|
|
|
|
Re-add some /proc/acpi/event functionality that was lost during
|
|
the rewrite
|
|
|
|
Resolved issue with /proc events for fixed-feature buttons showing
|
|
up as the system device.
|
|
|
|
Fixed checks on C2/C3 latencies to be inclusive of maximum values.
|
|
|
|
Replaced AE_ERRORs in acpi_osl.c with more specific error codes.
|
|
|
|
Changed ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi"
|
|
|
|
Fixed limit interface & usage to fix bugs with passive cooling
|
|
hysterisis.
|
|
|
|
Restructured PRT support.
|
|
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 02_14_02
|
|
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented support in AcpiLoadTable to allow loading of FACS and
|
|
FADT tables.
|
|
|
|
Suport for the now-obsolete interim 0.71 64-bit ACPI tables has
|
|
been removed. All 64-bit platforms should be migrated to the ACPI
|
|
2.0 tables. The actbl71.h header has been removed from the source
|
|
tree.
|
|
|
|
All C macros defined within the subsystem have been prefixed with
|
|
"ACPI_" to avoid collision with other system include files.
|
|
|
|
Removed the return value for the two AcpiOsPrint interfaces, since
|
|
it is never used and causes lint warnings for ignoring the return
|
|
value.
|
|
|
|
Added error checking to all internal mutex acquire and release
|
|
calls. Although a failure from one of these interfaces is
|
|
probably a fatal system error, these checks will cause the
|
|
immediate abort of the currently executing method or interface.
|
|
|
|
Fixed a problem where the AcpiSetCurrentResources interface could
|
|
fault. This was a side effect of the deployment of the new memory
|
|
allocation model.
|
|
|
|
Fixed a couple of problems with the Global Lock support introduced
|
|
in the last major build. The "common" (1.0/2.0) internal FACS was
|
|
being overwritten with the FACS signature and clobbering the
|
|
Global Lock pointer. Also, the actual firmware FACS was being
|
|
unmapped after construction of the "common" FACS, preventing
|
|
access to the actual Global Lock field within it. The "common"
|
|
internal FACS is no longer installed as an actual ACPI table; it
|
|
is used simply as a global.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release (02_07_01)
|
|
Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total
|
|
Debug Version: 136.9K Code, 56.4K Data, 193.3K Total
|
|
Current Release:
|
|
Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total
|
|
Debug Version: 138.0K Code, 56.6K Data, 194.6K Total
|
|
|
|
|
|
2) Linux
|
|
|
|
Updated Linux-specific code for core macro and OSL interface
|
|
changes described above.
|
|
|
|
Improved /proc/acpi/event. It now can be opened only once and has
|
|
proper poll functionality.
|
|
|
|
Fixed and restructured power management (acpi_bus).
|
|
|
|
Only create /proc "view by type" when devices of that class exist.
|
|
|
|
Fixed "charging/discharging" bug (and others) in acpi_battery.
|
|
|
|
Improved thermal zone code.
|
|
|
|
|
|
3) ASL Compiler, version X2039:
|
|
|
|
|
|
Implemented the new compiler restriction on ASL String hex/octal
|
|
escapes to non-null, ASCII values. An error results if an invalid
|
|
value is used. (This will require an ACPI 2.0 specification
|
|
change.)
|
|
|
|
AML object labels that are output to the optional C and ASM source
|
|
are now prefixed with both the ACPI table signature and table ID
|
|
to help guarantee uniqueness within a large BIOS project.
|
|
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 02_01_02
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
ACPI 2.0 support is complete in the entire Core Subsystem and the
|
|
ASL compiler. All new ACPI 2.0 operators are implemented and all
|
|
other changes for ACPI 2.0 support are complete. With
|
|
simultaneous code and data optimizations throughout the subsystem,
|
|
ACPI 2.0 support has been implemented with almost no additional
|
|
cost in terms of code and data size.
|
|
|
|
Implemented a new mechanism for allocation of return buffers. If
|
|
the buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will
|
|
be allocated on behalf of the caller. Consolidated all return
|
|
buffer validation and allocation to a common procedure. Return
|
|
buffers will be allocated via the primary OSL allocation interface
|
|
since it appears that a separate pool is not needed by most users.
|
|
If a separate pool is required for these buffers, the caller can
|
|
still use the original mechanism and pre-allocate the buffer(s).
|
|
|
|
Implemented support for string operands within the DerefOf
|
|
operator.
|
|
|
|
Restructured the Hardware and Event managers to be table driven,
|
|
simplifying the source code and reducing the amount of generated
|
|
code.
|
|
|
|
Split the common read/write low-level ACPI register bitfield
|
|
procedure into a separate read and write, simplifying the code
|
|
considerably.
|
|
|
|
Obsoleted the AcpiOsCallocate OSL interface. This interface was
|
|
used only a handful of times and didn't have enough critical mass
|
|
for a separate interface. Replaced with a common calloc procedure
|
|
in the core.
|
|
|
|
Fixed a reported problem with the GPE number mapping mechanism
|
|
that allows GPE1 numbers to be non-contiguous with GPE0.
|
|
Reorganized the GPE information and shrunk a large array that was
|
|
originally large enough to hold info for all possible GPEs (256)
|
|
to simply large enough to hold all GPEs up to the largest GPE
|
|
number on the machine.
|
|
|
|
Fixed a reported problem with resource structure alignment on 64-
|
|
bit platforms.
|
|
|
|
Changed the AcpiEnableEvent and AcpiDisableEvent external
|
|
interfaces to not require any flags for the common case of
|
|
enabling/disabling a GPE.
|
|
|
|
Implemented support to allow a "Notify" on a Processor object.
|
|
|
|
Most TBDs in comments within the source code have been resolved
|
|
and eliminated.
|
|
|
|
|
|
Fixed a problem in the interpreter where a standalone parent
|
|
prefix (^) was not handled correctly in the interpreter and
|
|
debugger.
|
|
|
|
Removed obsolete and unnecessary GPE save/restore code.
|
|
|
|
Implemented Field support in the ASL Load operator. This allows a
|
|
table to be loaded from a named field, in addition to loading a
|
|
table directly from an Operation Region.
|
|
|
|
Implemented timeout and handle support in the external Global Lock
|
|
interfaces.
|
|
|
|
Fixed a problem in the AcpiDump utility where pathnames were no
|
|
longer being generated correctly during the dump of named objects.
|
|
|
|
Modified the AML debugger to give a full display of if/while
|
|
predicates instead of just one AML opcode at a time. (The
|
|
predicate can have several nested ASL statements.) The old method
|
|
was confusing during single stepping.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release (12_18_01)
|
|
Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total
|
|
Debug Version: 138.3K Code, 55.9K Data, 194.2K Total
|
|
Current Release:
|
|
Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total
|
|
Debug Version: 136.9K Code, 56.4K Data, 193.3K Total
|
|
|
|
2) Linux
|
|
|
|
Implemented fix for PIIX reverse throttling errata (Processor
|
|
driver)
|
|
|
|
Added new Limit interface (Processor and Thermal drivers)
|
|
|
|
New thermal policy (Thermal driver)
|
|
|
|
Many updates to /proc
|
|
|
|
Battery "low" event support (Battery driver)
|
|
|
|
Supports ACPI PCI IRQ routing (PCI Link and PCI root drivers)
|
|
|
|
IA32 - IA64 initialization unification, no longer experimental
|
|
|
|
Menuconfig options redesigned
|
|
|
|
3) ASL Compiler, version X2037:
|
|
|
|
Implemented several new output features to simplify integration of
|
|
AML code into firmware: 1) Output the AML in C source code with
|
|
labels for each named ASL object. The original ASL source code
|
|
is interleaved as C comments. 2) Output the AML in ASM source code
|
|
with labels and interleaved ASL source. 3) Output the AML in
|
|
raw hex table form, in either C or ASM.
|
|
|
|
Implemented support for optional string parameters to the
|
|
LoadTable operator.
|
|
|
|
Completed support for embedded escape sequences within string
|
|
literals. The compiler now supports all single character escapes
|
|
as well as the Octal and Hex escapes. Note: the insertion of a
|
|
null byte into a string literal (via the hex/octal escape) causes
|
|
the string to be immediately terminated. A warning is issued.
|
|
|
|
Fixed a problem where incorrect AML was generated for the case
|
|
where an ASL namepath consists of a single parent prefix (
|
|
|
|
) with no trailing name segments.
|
|
|
|
The compiler has been successfully generated with a 64-bit C
|
|
compiler.
|
|
|
|
|
|
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 12_18_01
|
|
|
|
1) Linux
|
|
|
|
Enhanced blacklist with reason and severity fields. Any table's
|
|
signature may now be used to identify a blacklisted system.
|
|
|
|
Call _PIC control method to inform the firmware which interrupt
|
|
model the OS is using. Turn on any disabled link devices.
|
|
|
|
Cleaned up busmgr /proc error handling (Andreas Dilger)
|
|
|
|
2) ACPI CA Core Subsystem:
|
|
|
|
Implemented ACPI 2.0 semantics for the "Break" operator (Exit from
|
|
while loop)
|
|
|
|
Completed implementation of the ACPI 2.0 "Continue",
|
|
"ConcatenateResTemplate", "DataTableRegion", and "LoadTable"
|
|
operators. All new ACPI 2.0 operators are now implemented in both
|
|
the ASL compiler and the AML interpreter. The only remaining ACPI
|
|
2.0 task is support for the String data type in the DerefOf
|
|
operator. Fixed a problem with AcquireMutex where the status code
|
|
was lost if the caller had to actually wait for the mutex.
|
|
|
|
Increased the maximum ASL Field size from 64K bits to 4G bits.
|
|
|
|
Completed implementation of the external Global Lock interfaces --
|
|
AcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and
|
|
Handler parameters were added.
|
|
|
|
Completed another pass at removing warnings and issues when
|
|
compiling with 64-bit compilers. The code now compiles cleanly
|
|
with the Intel 64-bit C/C++ compiler. Most notably, the pointer
|
|
add and subtract (diff) macros have changed considerably.
|
|
|
|
|
|
Created and deployed a new ACPI_SIZE type that is 64-bits wide on
|
|
64-bit platforms, 32-bits on all others. This type is used
|
|
wherever memory allocation and/or the C sizeof() operator is used,
|
|
and affects the OSL memory allocation interfaces AcpiOsAllocate
|
|
and AcpiOsCallocate.
|
|
|
|
Implemented sticky user breakpoints in the AML debugger.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release (12_05_01)
|
|
Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total
|
|
Debug Version: 136.2K Code, 55.6K Data, 191.8K Total
|
|
Current Release:
|
|
Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total
|
|
Debug Version: 138.3K Code, 55.9K Data, 194.2K Total
|
|
|
|
3) ASL Compiler, version X2034:
|
|
|
|
Now checks for (and generates an error if detected) the use of a
|
|
Break or Continue statement without an enclosing While statement.
|
|
|
|
|
|
Successfully generated the compiler with the Intel 64-bit C
|
|
compiler.
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 12_05_01
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
The ACPI 2.0 CopyObject operator is fully implemented. This
|
|
operator creates a new copy of an object (and is also used to
|
|
bypass the "implicit conversion" mechanism of the Store operator.)
|
|
|
|
The ACPI 2.0 semantics for the SizeOf operator are fully
|
|
implemented. The change is that performing a SizeOf on a
|
|
reference object causes an automatic dereference of the object to
|
|
tha actual value before the size is evaluated. This behavior was
|
|
undefined in ACPI 1.0.
|
|
|
|
The ACPI 2.0 semantics for the Extended IRQ resource descriptor
|
|
have been implemented. The interrupt polarity and mode are now
|
|
independently set.
|
|
|
|
Fixed a problem where ASL Constants (Zero, One, Ones, Revision)
|
|
appearing in Package objects were not properly converted to
|
|
integers when the internal Package was converted to an external
|
|
object (via the AcpiEvaluateObject interface.)
|
|
|
|
Fixed a problem with the namespace object deletion mechanism for
|
|
objects created by control methods. There were two parts to this
|
|
problem: 1) Objects created during the initialization phase method
|
|
parse were not being deleted, and 2) The object owner ID mechanism
|
|
to track objects was broken.
|
|
|
|
Fixed a problem where the use of the ASL Scope operator within a
|
|
control method would result in an invalid opcode exception.
|
|
|
|
Fixed a problem introduced in the previous label where the buffer
|
|
length required for the _PRT structure was not being returned
|
|
correctly.
|
|
|
|
Code and Data Size: Current core subsystem library sizes are shown
|
|
below. These are the code and data sizes for the acpica.lib
|
|
produced by the Microsoft Visual C++ 6.0 compiler, and these
|
|
values do not include any ACPI driver or OSPM code. The debug
|
|
version of the code includes the debug output trace mechanism and
|
|
has a larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Release (11_20_01)
|
|
Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total
|
|
Debug Version: 135.1K Code, 55.4K Data, 190.5K Total
|
|
|
|
Current Release:
|
|
Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total
|
|
Debug Version: 136.2K Code, 55.6K Data, 191.8K Total
|
|
|
|
2) Linux:
|
|
|
|
Updated all files to apply cleanly against 2.4.16.
|
|
|
|
Added basic PCI Interrupt Routing Table (PRT) support for IA32
|
|
(acpi_pci.c), and unified the PRT code for IA32 and IA64. This
|
|
version supports both static and dyanmic PRT entries, but dynamic
|
|
entries are treated as if they were static (not yet
|
|
reconfigurable). Architecture- specific code to use this data is
|
|
absent on IA32 but should be available shortly.
|
|
|
|
Changed the initialization sequence to start the ACPI interpreter
|
|
(acpi_init) prior to initialization of the PCI driver (pci_init)
|
|
in init/main.c. This ordering is required to support PRT and
|
|
facilitate other (future) enhancement. A side effect is that the
|
|
ACPI bus driver and certain device drivers can no longer be loaded
|
|
as modules.
|
|
|
|
Modified the 'make menuconfig' options to allow PCI Interrupt
|
|
Routing support to be included without the ACPI Bus and other
|
|
device drivers.
|
|
|
|
3) ASL Compiler, version X2033:
|
|
|
|
Fixed some issues with the use of the new CopyObject and
|
|
DataTableRegion operators. Both are fully functional.
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 11_20_01
|
|
|
|
20 November 2001. Summary of changes for this release.
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Updated Index support to match ACPI 2.0 semantics. Storing a
|
|
Integer, String, or Buffer to an Index of a Buffer will store only
|
|
the least-significant byte of the source to the Indexed buffer
|
|
byte. Multiple writes are not performed.
|
|
|
|
Fixed a problem where the access type used in an AccessAs ASL
|
|
operator was not recorded correctly into the field object.
|
|
|
|
Fixed a problem where ASL Event objects were created in a
|
|
signalled state. Events are now created in an unsignalled state.
|
|
|
|
The internal object cache is now purged after table loading and
|
|
initialization to reduce the use of dynamic kernel memory -- on
|
|
the assumption that object use is greatest during the parse phase
|
|
of the entire table (versus the run-time use of individual control
|
|
methods.)
|
|
|
|
ACPI 2.0 variable-length packages are now fully operational.
|
|
|
|
Code and Data Size: Code and Data optimizations have permitted new
|
|
feature development with an actual reduction in the library size.
|
|
Current core subsystem library sizes are shown below. These are
|
|
the code and data sizes for the acpica.lib produced by the
|
|
Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code
|
|
includes the debug output trace mechanism and has a larger code
|
|
and data size. Note that these values will vary depending on the
|
|
efficiency of the compiler and the compiler options used during
|
|
generation.
|
|
|
|
Previous Release (11_09_01):
|
|
Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total
|
|
Debug Version: 134.5K Code, 55.4K Data, 189.9K Total
|
|
|
|
Current Release:
|
|
Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total
|
|
Debug Version: 135.1K Code, 55.4K Data, 190.5K Total
|
|
|
|
2) Linux:
|
|
|
|
Enhanced the ACPI boot-time initialization code to allow the use
|
|
of Local APIC tables for processor enumeration on IA-32, and to
|
|
pave the way for a fully MPS-free boot (on SMP systems) in the
|
|
near future. This functionality replaces
|
|
arch/i386/kernel/acpitables.c, which was introduced in an earlier
|
|
2.4.15-preX release. To enable this feature you must add
|
|
"acpi_boot=on" to the kernel command line -- see the help entry
|
|
for CONFIG_ACPI_BOOT for more information. An IA-64 release is in
|
|
the works...
|
|
|
|
Restructured the configuration options to allow boot-time table
|
|
parsing support without inclusion of the ACPI Interpreter (and
|
|
other) code.
|
|
|
|
NOTE: This release does not include fixes for the reported events,
|
|
power-down, and thermal passive cooling issues (coming soon).
|
|
|
|
3) ASL Compiler:
|
|
|
|
Added additional typechecking for Fields within restricted access
|
|
Operation Regions. All fields within EC and CMOS regions must be
|
|
declared with ByteAcc. All fields withing SMBus regions must be
|
|
declared with the BufferAcc access type.
|
|
|
|
Fixed a problem where the listing file output of control methods
|
|
no longer interleaved the actual AML code with the ASL source
|
|
code.
|
|
|
|
|
|
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 11_09_01
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
Implemented ACPI 2.0-defined support for writes to fields with a
|
|
Buffer, String, or Integer source operand that is smaller than the
|
|
target field. In these cases, the source operand is zero-extended
|
|
to fill the target field.
|
|
|
|
Fixed a problem where a Field starting bit offset (within the
|
|
parent operation region) was calculated incorrectly if the
|
|
|
|
alignment of the field differed from the access width. This
|
|
affected CreateWordField, CreateDwordField, CreateQwordField, and
|
|
possibly other fields that use the "AccessAny" keyword.
|
|
|
|
Fixed a problem introduced in the 11_02_01 release where indirect
|
|
stores through method arguments did not operate correctly.
|
|
|
|
2) Linux:
|
|
|
|
Implemented boot-time ACPI table parsing support
|
|
(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code
|
|
facilitates the use of ACPI tables (e.g. MADT, SRAT) rather than
|
|
legacy BIOS interfaces (e.g. MPS) for the configuration of system
|
|
processors, memory, and interrupts during setup_arch(). Note that
|
|
this patch does not include the required architecture-specific
|
|
changes required to apply this information -- subsequent patches
|
|
will be posted for both IA32 and IA64 to achieve this.
|
|
|
|
Added low-level sleep support for IA32 platforms, courtesy of Pat
|
|
Mochel. This allows IA32 systems to transition to/from various
|
|
sleeping states (e.g. S1, S3), although the lack of a centralized
|
|
driver model and power-manageable drivers will prevent its
|
|
(successful) use on most systems.
|
|
|
|
Revamped the ACPI 'menuconfig' layout: created new "ACPI Support"
|
|
submenu, unified IA32 and IA64 options, added new "Boot using ACPI
|
|
tables" option, etc.
|
|
|
|
Increased the default timeout for the EC driver from 1ms to 10ms
|
|
(1000 cycles of 10us) to try to address AE_TIME errors during EC
|
|
transactions.
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 11_02_01
|
|
|
|
1) ACPI CA Core Subsystem:
|
|
|
|
ACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access
|
|
(QWordAcc keyword). All ACPI 2.0 64-bit support is now
|
|
implemented.
|
|
|
|
OSL Interfaces: Several of the OSL (AcpiOs*) interfaces required
|
|
changes to support ACPI 2.0 Qword field access. Read/Write
|
|
PciConfiguration(), Read/Write Memory(), and Read/Write Port() now
|
|
accept an ACPI_INTEGER (64 bits) as the value parameter. Also,
|
|
the value parameter for the address space handler interface is now
|
|
an ACPI_INTEGER. OSL implementations of these interfaces must now
|
|
handle the case where the Width parameter is 64.
|
|
|
|
Index Fields: Fixed a problem where unaligned bit assembly and
|
|
disassembly for IndexFields was not supported correctly.
|
|
|
|
Index and Bank Fields: Nested Index and Bank Fields are now
|
|
supported. During field access, a check is performed to ensure
|
|
that the value written to an Index or Bank register is not out of
|
|
the range of the register. The Index (or Bank) register is
|
|
written before each access to the field data. Future support will
|
|
include allowing individual IndexFields to be wider than the
|
|
DataRegister width.
|
|
|
|
Fields: Fixed a problem where the AML interpreter was incorrectly
|
|
attempting to write beyond the end of a Field/OpRegion. This was
|
|
a boundary case that occurred when a DWORD field was written to a
|
|
BYTE access OpRegion, forcing multiple writes and causing the
|
|
interpreter to write one datum too many.
|
|
|
|
Fields: Fixed a problem with Field/OpRegion access where the
|
|
starting bit address of a field was incorrectly calculated if the
|
|
current access type was wider than a byte (WordAcc, DwordAcc, or
|
|
QwordAcc).
|
|
|
|
Fields: Fixed a problem where forward references to individual
|
|
FieldUnits (individual Field names within a Field definition) were
|
|
not resolved during the AML table load.
|
|
|
|
Fields: Fixed a problem where forward references from a Field
|
|
definition to the parent Operation Region definition were not
|
|
resolved during the AML table load.
|
|
|
|
Fields: Duplicate FieldUnit names within a scope are now detected
|
|
during AML table load.
|
|
|
|
Acpi Interfaces: Fixed a problem where the AcpiGetName() interface
|
|
returned an incorrect name for the root node.
|
|
|
|
Code and Data Size: Code and Data optimizations have permitted new
|
|
feature development with an actual reduction in the library size.
|
|
Current core subsystem library sizes are shown below. These are
|
|
the code and data sizes for the acpica.lib produced by the
|
|
Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code
|
|
includes the debug output trace mechanism and has a larger code
|
|
and data size. Note that these values will vary depending on the
|
|
efficiency of the compiler and the compiler options used during
|
|
generation.
|
|
|
|
Previous Release (10_18_01):
|
|
Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total
|
|
Debug Version: 136.7K Code, 57.4K Data, 194.2K Total
|
|
|
|
Current Release:
|
|
Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total
|
|
Debug Version: 134.5K Code, 55.4K Data, 189.9K Total
|
|
|
|
2) Linux:
|
|
|
|
Improved /proc processor output (Pavel Machek) Re-added
|
|
MODULE_LICENSE("GPL") to all modules.
|
|
|
|
3) ASL Compiler version X2030:
|
|
|
|
Duplicate FieldUnit names within a scope are now detected and
|
|
flagged as errors.
|
|
|
|
4) Documentation:
|
|
|
|
Programmer Reference updated to reflect OSL and address space
|
|
handler interface changes described above.
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 10_18_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem with the internal object reference count mechanism
|
|
that occasionally caused premature object deletion. This resolves
|
|
all of the outstanding problem reports where an object is deleted
|
|
in the middle of an interpreter evaluation. Although this problem
|
|
only showed up in rather obscure cases, the solution to the
|
|
problem involved an adjustment of all reference counts involving
|
|
objects attached to namespace nodes.
|
|
|
|
Fixed a problem with Field support in the interpreter where
|
|
writing to an aligned field whose length is an exact multiple (2
|
|
or greater) of the field access granularity would cause an attempt
|
|
to write beyond the end of the field.
|
|
|
|
The top level AML opcode execution functions within the
|
|
interpreter have been renamed with a more meaningful and
|
|
consistent naming convention. The modules exmonad.c and
|
|
exdyadic.c were eliminated. New modules are exoparg1.c,
|
|
exoparg2.c, exoparg3.c, and exoparg6.c.
|
|
|
|
Support for the ACPI 2.0 "Mid" ASL operator has been implemented.
|
|
|
|
Fixed a problem where the AML debugger was causing some internal
|
|
objects to not be deleted during subsystem termination.
|
|
|
|
Fixed a problem with the external AcpiEvaluateObject interface
|
|
where the subsystem would fault if the named object to be
|
|
evaluated refered to a constant such as Zero, Ones, etc.
|
|
|
|
Fixed a problem with IndexFields and BankFields where the
|
|
subsystem would fault if the index, data, or bank registers were
|
|
not defined in the same scope as the field itself.
|
|
|
|
Added printf format string checking for compilers that support
|
|
this feature. Corrected more than 50 instances of issues with
|
|
format specifiers within invocations of ACPI_DEBUG_PRINT
|
|
throughout the core subsystem code.
|
|
|
|
The ASL "Revision" operator now returns the ACPI support level
|
|
implemented in the core - the value "2" since the ACPI 2.0 support
|
|
is more than 50% implemented.
|
|
|
|
Enhanced the output of the AML debugger "dump namespace" command
|
|
to output in a more human-readable form.
|
|
|
|
Current core subsystem library code sizes are shown below. These
|
|
|
|
are the code and data sizes for the acpica.lib produced by the
|
|
Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code
|
|
includes the full debug trace mechanism -- leading to a much
|
|
|
|
larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Previous Label (09_20_01):
|
|
Non-Debug Version: 65K Code, 5K Data, 70K Total
|
|
Debug Version: 138K Code, 58K Data, 196K Total
|
|
|
|
This Label:
|
|
|
|
Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total
|
|
Debug Version: 136.7K Code, 57.4K Data, 194.2K Total
|
|
|
|
Linux:
|
|
|
|
Implemented a "Bad BIOS Blacklist" to track machines that have
|
|
known ASL/AML problems.
|
|
|
|
Enhanced the /proc interface for the thermal zone driver and added
|
|
support for _HOT (the critical suspend trip point). The 'info'
|
|
file now includes threshold/policy information, and allows setting
|
|
of _SCP (cooling preference) and _TZP (polling frequency) values
|
|
to the 'info' file. Examples: "echo tzp=5 > info" sets the polling
|
|
frequency to 5 seconds, and "echo scp=1 > info" sets the cooling
|
|
preference to the passive/quiet mode (if supported by the ASL).
|
|
|
|
Implemented a workaround for a gcc bug that resuted in an OOPs
|
|
when loading the control method battery driver.
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 09_20_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
The AcpiEnableEvent and AcpiDisableEvent interfaces have been
|
|
modified to allow individual GPE levels to be flagged as wake-
|
|
enabled (i.e., these GPEs are to remain enabled when the platform
|
|
sleeps.)
|
|
|
|
The AcpiEnterSleepState and AcpiLeaveSleepState interfaces now
|
|
support wake-enabled GPEs. This means that upon entering the
|
|
sleep state, all GPEs that are not wake-enabled are disabled.
|
|
When leaving the sleep state, these GPEs are reenabled.
|
|
|
|
A local double-precision divide/modulo module has been added to
|
|
enhance portability to OS kernels where a 64-bit math library is
|
|
not available. The new module is "utmath.c".
|
|
|
|
Several optimizations have been made to reduce the use of CPU
|
|
stack. Originally over 2K, the maximum stack usage is now below
|
|
2K at 1860 bytes (1.82k)
|
|
|
|
Fixed a problem with the AcpiGetFirmwareTable interface where the
|
|
root table pointer was not mapped into a logical address properly.
|
|
|
|
Fixed a problem where a NULL pointer was being dereferenced in the
|
|
interpreter code for the ASL Notify operator.
|
|
|
|
Fixed a problem where the use of the ASL Revision operator
|
|
returned an error. This operator now returns the current version
|
|
of the ACPI CA core subsystem.
|
|
|
|
Fixed a problem where objects passed as control method parameters
|
|
to AcpiEvaluateObject were always deleted at method termination.
|
|
However, these objects may end up being stored into the namespace
|
|
by the called method. The object reference count mechanism was
|
|
applied to these objects instead of a force delete.
|
|
|
|
Fixed a problem where static strings or buffers (contained in the
|
|
AML code) that are declared as package elements within the ASL
|
|
code could cause a fault because the interpreter would attempt to
|
|
delete them. These objects are now marked with the "static
|
|
object" flag to prevent any attempt to delete them.
|
|
|
|
Implemented an interpreter optimization to use operands directly
|
|
from the state object instead of extracting the operands to local
|
|
variables. This reduces stack use and code size, and improves
|
|
performance.
|
|
|
|
The module exxface.c was eliminated as it was an unnecessary extra
|
|
layer of code.
|
|
|
|
Current core subsystem library code sizes are shown below. These
|
|
are the code and data sizes for the acpica.lib produced by the
|
|
Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code
|
|
includes the full debug trace mechanism -- leading to a much
|
|
larger code and data size. Note that these values will vary
|
|
depending on the efficiency of the compiler and the compiler
|
|
options used during generation.
|
|
|
|
Non-Debug Version: 65K Code, 5K Data, 70K Total
|
|
(Previously 69K) Debug Version: 138K Code, 58K Data, 196K
|
|
Total (Previously 195K)
|
|
|
|
Linux:
|
|
|
|
Support for ACPI 2.0 64-bit integers has been added. All ACPI
|
|
Integer objects are now 64 bits wide
|
|
|
|
All Acpi data types and structures are now in lower case. Only
|
|
Acpi macros are upper case for differentiation.
|
|
|
|
Documentation:
|
|
|
|
Changes to the external interfaces as described above.
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 08_31_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
A bug with interpreter implementation of the ASL Divide operator
|
|
was found and fixed. The implicit function return value (not the
|
|
explicit store operands) was returning the remainder instead of
|
|
the quotient. This was a longstanding bug and it fixes several
|
|
known outstanding issues on various platforms.
|
|
|
|
The ACPI_DEBUG_PRINT and function trace entry/exit macros have
|
|
been further optimized for size. There are 700 invocations of the
|
|
DEBUG_PRINT macro alone, so each optimization reduces the size of
|
|
the debug version of the subsystem significantly.
|
|
|
|
A stack trace mechanism has been implemented. The maximum stack
|
|
usage is about 2K on 32-bit platforms. The debugger command "stat
|
|
stack" will display the current maximum stack usage.
|
|
|
|
All public symbols and global variables within the subsystem are
|
|
now prefixed with the string "Acpi". This keeps all of the
|
|
symbols grouped together in a kernel map, and avoids conflicts
|
|
with other kernel subsystems.
|
|
|
|
Most of the internal fixed lookup tables have been moved into the
|
|
code segment via the const operator.
|
|
|
|
Several enhancements have been made to the interpreter to both
|
|
reduce the code size and improve performance.
|
|
|
|
Current core subsystem library code sizes are shown below. These
|
|
are the code and data sizes for the acpica.lib produced by the
|
|
Microsoft Visual C++ 6.0 compiler, and these values do not include
|
|
any ACPI driver or OSPM code. The debug version of the code
|
|
includes the full debug trace mechanism which contains over 700
|
|
invocations of the DEBUG_PRINT macro, 500 function entry macro
|
|
invocations, and over 900 function exit macro invocations --
|
|
leading to a much larger code and data size. Note that these
|
|
values will vary depending on the efficiency of the compiler and
|
|
the compiler options used during generation.
|
|
|
|
Non-Debug Version: 64K Code, 5K Data, 69K Total
|
|
Debug Version: 137K Code, 58K Data, 195K Total
|
|
|
|
Linux:
|
|
|
|
Implemented wbinvd() macro, pending a kernel-wide definition.
|
|
|
|
Fixed /proc/acpi/event to handle poll() and short reads.
|
|
|
|
ASL Compiler, version X2026:
|
|
|
|
Fixed a problem introduced in the previous label where the AML
|
|
|
|
code emitted for package objects produced packages with zero
|
|
length.
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 08_16_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
The following ACPI 2.0 ASL operators have been implemented in the
|
|
AML interpreter (These are already supported by the Intel ASL
|
|
compiler): ToDecimalString, ToHexString, ToString, ToInteger, and
|
|
ToBuffer. Support for 64-bit AML constants is implemented in the
|
|
AML parser, debugger, and disassembler.
|
|
|
|
The internal memory tracking mechanism (leak detection code) has
|
|
been upgraded to reduce the memory overhead (a separate tracking
|
|
block is no longer allocated for each memory allocation), and now
|
|
supports all of the internal object caches.
|
|
|
|
The data structures and code for the internal object caches have
|
|
been coelesced and optimized so that there is a single cache and
|
|
memory list data structure and a single group of functions that
|
|
implement generic cache management. This has reduced the code
|
|
size in both the debug and release versions of the subsystem.
|
|
|
|
The DEBUG_PRINT macro(s) have been optimized for size and replaced
|
|
by ACPI_DEBUG_PRINT. The syntax for this macro is slightly
|
|
different, because it generates a single call to an internal
|
|
function. This results in a savings of about 90 bytes per
|
|
invocation, resulting in an overall code and data savings of about
|
|
16% in the debug version of the subsystem.
|
|
|
|
Linux:
|
|
|
|
Fixed C3 disk corruption problems and re-enabled C3 on supporting
|
|
machines.
|
|
|
|
Integrated low-level sleep code by Patrick Mochel.
|
|
|
|
Further tweaked source code Linuxization.
|
|
|
|
Other minor fixes.
|
|
|
|
ASL Compiler:
|
|
|
|
Support for ACPI 2.0 variable length packages is fixed/completed.
|
|
|
|
Fixed a problem where the optional length parameter for the ACPI
|
|
2.0 ToString operator.
|
|
|
|
Fixed multiple extraneous error messages when a syntax error is
|
|
detected within the declaration line of a control method.
|
|
|
|
----------------------------------------
|
|
Summary of changes for this label: 07_17_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
Added a new interface named AcpiGetFirmwareTable to obtain any
|
|
ACPI table via the ACPI signature. The interface can be called at
|
|
any time during kernel initialization, even before the kernel
|
|
virtual memory manager is initialized and paging is enabled. This
|
|
allows kernel subsystems to obtain ACPI tables very early, even
|
|
before the ACPI CA subsystem is initialized.
|
|
|
|
Fixed a problem where Fields defined with the AnyAcc attribute
|
|
could be resolved to the incorrect address under the following
|
|
conditions: 1) the field width is larger than 8 bits and 2) the
|
|
parent operation region is not defined on a DWORD boundary.
|
|
|
|
Fixed a problem where the interpreter is not being locked during
|
|
namespace initialization (during execution of the _INI control
|
|
methods), causing an error when an attempt is made to release it
|
|
later.
|
|
|
|
ACPI 2.0 support in the AML Interpreter has begun and will be
|
|
ongoing throughout the rest of this year. In this label, The Mod
|
|
operator is implemented.
|
|
|
|
Added a new data type to contain full PCI addresses named
|
|
ACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device,
|
|
and Function values.
|
|
|
|
Linux:
|
|
|
|
Enhanced the Linux version of the source code to change most
|
|
capitalized ACPI type names to lowercase. For example, all
|
|
instances of ACPI_STATUS are changed to acpi_status. This will
|
|
result in a large diff, but the change is strictly cosmetic and
|
|
aligns the CA code closer to the Linux coding standard.
|
|
|
|
OSL Interfaces:
|
|
|
|
The interfaces to the PCI configuration space have been changed to
|
|
add the PCI Segment number and to split the single 32-bit combined
|
|
DeviceFunction field into two 16-bit fields. This was
|
|
accomplished by moving the four values that define an address in
|
|
PCI configuration space (segment, bus, device, and function) to
|
|
the new ACPI_PCI_ID structure.
|
|
|
|
The changes to the PCI configuration space interfaces led to a
|
|
reexamination of the complete set of address space access
|
|
interfaces for PCI, I/O, and Memory. The previously existing 18
|
|
interfaces have proven difficult to maintain (any small change
|
|
must be propagated across at least 6 interfaces) and do not easily
|
|
allow for future expansion to 64 bits if necessary. Also, on some
|
|
systems, it would not be appropriate to demultiplex the access
|
|
width (8, 16, 32,or 64) before calling the OSL if the
|
|
corresponding native OS interfaces contain a similar access width
|
|
parameter. For these reasons, the 18 address space interfaces
|
|
have been replaced by these 6 new ones:
|
|
|
|
AcpiOsReadPciConfiguration
|
|
AcpiOsWritePciConfiguration
|
|
AcpiOsReadMemory
|
|
AcpiOsWriteMemory
|
|
AcpiOsReadPort
|
|
AcpiOsWritePort
|
|
|
|
Added a new interface named AcpiOsGetRootPointer to allow the OSL
|
|
to perform the platform and/or OS-specific actions necessary to
|
|
obtain the ACPI RSDP table pointer. On IA-32 platforms, this
|
|
interface will simply call down to the CA core to perform the low-
|
|
memory search for the table. On IA-64, the RSDP is obtained from
|
|
EFI. Migrating this interface to the OSL allows the CA core to
|
|
|
|
remain OS and platform independent.
|
|
|
|
Added a new interface named AcpiOsSignal to provide a generic
|
|
"function code and pointer" interface for various miscellaneous
|
|
signals and notifications that must be made to the host OS. The
|
|
first such signals are intended to support the ASL Fatal and
|
|
Breakpoint operators. In the latter case, the AcpiOsBreakpoint
|
|
interface has been obsoleted.
|
|
|
|
The definition of the AcpiFormatException interface has been
|
|
changed to simplify its use. The caller no longer must supply a
|
|
buffer to the call; A pointer to a const string is now returned
|
|
directly. This allows the call to be easily used in printf
|
|
statements, etc. since the caller does not have to manage a local
|
|
buffer.
|
|
|
|
|
|
ASL Compiler, Version X2025:
|
|
|
|
The ACPI 2.0 Switch/Case/Default operators have been implemented
|
|
and are fully functional. They will work with all ACPI 1.0
|
|
interpreters, since the operators are simply translated to If/Else
|
|
pairs.
|
|
|
|
The ACPI 2.0 ElseIf operator is implemented and will also work
|
|
with 1.0 interpreters, for the same reason.
|
|
|
|
Implemented support for ACPI 2.0 variable-length packages. These
|
|
packages have a separate opcode, and their size is determined by
|
|
the interpreter at run-time.
|
|
|
|
Documentation The ACPI CA Programmer Reference has been updated to
|
|
reflect the new interfaces and changes to existing interfaces.
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 06_15_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where a DWORD-accessed field within a Buffer
|
|
object would get its byte address inadvertently rounded down to
|
|
the nearest DWORD. Buffers are always Byte-accessible.
|
|
|
|
ASL Compiler, version X2024:
|
|
|
|
Fixed a problem where the Switch() operator would either fault or
|
|
hang the compiler. Note however, that the AML code for this ACPI
|
|
2.0 operator is not yet implemented.
|
|
|
|
Compiler uses the new AcpiOsGetTimer interface to obtain compile
|
|
timings.
|
|
|
|
Implementation of the CreateField operator automatically converts
|
|
a reference to a named field within a resource descriptor from a
|
|
byte offset to a bit offset if required.
|
|
|
|
Added some missing named fields from the resource descriptor
|
|
support. These are the names that are automatically created by the
|
|
compiler to reference fields within a descriptor. They are only
|
|
valid at compile time and are not passed through to the AML
|
|
interpreter.
|
|
|
|
Resource descriptor named fields are now typed as Integers and
|
|
subject to compile-time typechecking when used in expressions.
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 05_18_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
Fixed a couple of problems in the Field support code where bits
|
|
from adjacent fields could be returned along with the proper field
|
|
bits. Restructured the field support code to improve performance,
|
|
readability and maintainability.
|
|
|
|
New DEBUG_PRINTP macro automatically inserts the procedure name
|
|
into the output, saving hundreds of copies of procedure name
|
|
strings within the source, shrinking the memory footprint of the
|
|
debug version of the core subsystem.
|
|
|
|
Source Code Structure:
|
|
|
|
The source code directory tree was restructured to reflect the
|
|
current organization of the component architecture. Some files
|
|
and directories have been moved and/or renamed.
|
|
|
|
Linux:
|
|
|
|
Fixed leaking kacpidpc processes.
|
|
|
|
Fixed queueing event data even when /proc/acpi/event is not
|
|
opened.
|
|
|
|
ASL Compiler, version X2020:
|
|
|
|
Memory allocation performance enhancement - over 24X compile time
|
|
improvement on large ASL files. Parse nodes and namestring
|
|
buffers are now allocated from a large internal compiler buffer.
|
|
|
|
The temporary .SRC file is deleted unless the "-s" option is
|
|
specified
|
|
|
|
The "-d" debug output option now sends all output to the .DBG file
|
|
instead of the console.
|
|
|
|
"External" second parameter is now optional
|
|
|
|
"ElseIf" syntax now properly allows the predicate
|
|
|
|
Last operand to "Load" now recognized as a Target operand
|
|
|
|
Debug object can now be used anywhere as a normal object.
|
|
|
|
ResourceTemplate now returns an object of type BUFFER
|
|
|
|
EISAID now returns an object of type INTEGER
|
|
|
|
"Index" now works with a STRING operand
|
|
|
|
"LoadTable" now accepts optional parameters
|
|
|
|
"ToString" length parameter is now optional
|
|
|
|
"Interrupt (ResourceType," parse error fixed.
|
|
|
|
"Register" with a user-defined region space parse error fixed
|
|
|
|
Escaped backslash at the end of a string ("\\") scan/parse error
|
|
fixed
|
|
|
|
"Revision" is now an object of type INTEGER.
|
|
|
|
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 05_02_01
|
|
|
|
Linux:
|
|
|
|
/proc/acpi/event now blocks properly.
|
|
|
|
Removed /proc/sys/acpi. You can still dump your DSDT from
|
|
/proc/acpi/dsdt.
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem introduced in the previous label where some of the
|
|
"small" resource descriptor types were not recognized.
|
|
|
|
Improved error messages for the case where an ASL Field is outside
|
|
the range of the parent operation region.
|
|
|
|
ASL Compiler, version X2018:
|
|
|
|
|
|
Added error detection for ASL Fields that extend beyond the length
|
|
of the parent operation region (only if the length of the region
|
|
is known at compile time.) This includes fields that have a
|
|
minimum access width that is smaller than the parent region, and
|
|
individual field units that are partially or entirely beyond the
|
|
extent of the parent.
|
|
|
|
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 04_27_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
Fixed a problem where the namespace mutex could be released at the
|
|
wrong time during execution of AcpiRemoveAddressSpaceHandler.
|
|
|
|
Added optional thread ID output for debug traces, to simplify
|
|
debugging of multiple threads. Added context switch notification
|
|
when the debug code realizes that a different thread is now
|
|
executing ACPI code.
|
|
|
|
Some additional external data types have been prefixed with the
|
|
string "ACPI_" for consistency. This may effect existing code.
|
|
The data types affected are the external callback typedefs - e.g.,
|
|
|
|
WALK_CALLBACK becomes ACPI_WALK_CALLBACK.
|
|
|
|
Linux:
|
|
|
|
Fixed an issue with the OSL semaphore implementation where a
|
|
thread was waking up with an error from receiving a SIGCHLD
|
|
signal.
|
|
|
|
Linux version of ACPI CA now uses the system C library for string
|
|
manipulation routines instead of a local implementation.
|
|
|
|
Cleaned up comments and removed TBDs.
|
|
|
|
ASL Compiler, version X2017:
|
|
|
|
Enhanced error detection and reporting for all file I/O
|
|
operations.
|
|
|
|
Documentation:
|
|
|
|
Programmer Reference updated to version 1.06.
|
|
|
|
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 04_13_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
Restructured support for BufferFields and RegionFields.
|
|
BankFields support is now fully operational. All known 32-bit
|
|
limitations on field sizes have been removed. Both BufferFields
|
|
and (Operation) RegionFields are now supported by the same field
|
|
management code.
|
|
|
|
Resource support now supports QWORD address and IO resources. The
|
|
16/32/64 bit address structures and the Extended IRQ structure
|
|
have been changed to properly handle Source Resource strings.
|
|
|
|
A ThreadId of -1 is now used to indicate a "mutex not acquired"
|
|
condition internally and must never be returned by AcpiOsThreadId.
|
|
This reserved value was changed from 0 since Unix systems allow a
|
|
thread ID of 0.
|
|
|
|
Linux:
|
|
|
|
Driver code reorganized to enhance portability
|
|
|
|
Added a kernel configuration option to control ACPI_DEBUG
|
|
|
|
Fixed the EC driver to honor _GLK.
|
|
|
|
ASL Compiler, version X2016:
|
|
|
|
Fixed support for the "FixedHw" keyword. Previously, the FixedHw
|
|
address space was set to 0, not 0x7f as it should be.
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 03_13_01
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
During ACPI initialization, the _SB_._INI method is now run if
|
|
present.
|
|
|
|
Notify handler fix - notifies are deferred until the parent method
|
|
completes execution. This fixes the "mutex already acquired"
|
|
issue seen occasionally.
|
|
|
|
Part of the "implicit conversion" rules in ACPI 2.0 have been
|
|
found to cause compatibility problems with existing ASL/AML. The
|
|
convert "result-to-target-type" implementation has been removed
|
|
for stores to method Args and Locals. Source operand conversion
|
|
is still fully implemented. Possible changes to ACPI 2.0
|
|
specification pending.
|
|
|
|
Fix to AcpiRsCalculatePciRoutingTableLength to return correct
|
|
length.
|
|
|
|
Fix for compiler warnings for 64-bit compiles.
|
|
|
|
Linux:
|
|
|
|
/proc output aligned for easier parsing.
|
|
|
|
Release-version compile problem fixed.
|
|
|
|
New kernel configuration options documented in Configure.help.
|
|
|
|
IBM 600E - Fixed Sleep button may generate "Invalid <NULL>
|
|
context" message.
|
|
|
|
OSPM:
|
|
|
|
Power resource driver integrated with bus manager.
|
|
|
|
Fixed kernel fault during active cooling for thermal zones.
|
|
|
|
Source Code:
|
|
|
|
The source code tree has been restructured.
|
|
|
|
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 03_02_01
|
|
|
|
Linux OS Services Layer (OSL):
|
|
|
|
Major revision of all Linux-specific code.
|
|
|
|
Modularized all ACPI-specific drivers.
|
|
|
|
Added new thermal zone and power resource drivers.
|
|
|
|
Revamped /proc interface (new functionality is under /proc/acpi).
|
|
|
|
New kernel configuration options.
|
|
|
|
Linux known issues:
|
|
|
|
New kernel configuration options not documented in Configure.help
|
|
yet.
|
|
|
|
|
|
Module dependencies not currently implemented. If used, they
|
|
should be loaded in this order: busmgr, power, ec, system,
|
|
processor, battery, ac_adapter, button, thermal.
|
|
|
|
Modules will not load if CONFIG_MODVERSION is set.
|
|
|
|
IBM 600E - entering S5 may reboot instead of shutting down.
|
|
|
|
IBM 600E - Sleep button may generate "Invalid <NULL> context"
|
|
message.
|
|
|
|
Some systems may fail with "execution mutex already acquired"
|
|
message.
|
|
|
|
ACPI CA Core Subsystem:
|
|
|
|
Added a new OSL Interface, AcpiOsGetThreadId. This was required
|
|
for the deadlock detection code. Defined to return a non-zero, 32-
|
|
bit thread ID for the currently executing thread. May be a non-
|
|
zero constant integer on single-thread systems.
|
|
|
|
Implemented deadlock detection for internal subsystem mutexes. We
|
|
may add conditional compilation for this code (debug only) later.
|
|
|
|
ASL/AML Mutex object semantics are now fully supported. This
|
|
includes multiple acquires/releases by owner and support for the
|
|
|
|
Mutex SyncLevel parameter.
|
|
|
|
A new "Force Release" mechanism automatically frees all ASL
|
|
Mutexes that have been acquired but not released when a thread
|
|
exits the interpreter. This forces conformance to the ACPI spec
|
|
("All mutexes must be released when an invocation exits") and
|
|
prevents deadlocked ASL threads. This mechanism can be expanded
|
|
(later) to monitor other resource acquisitions if OEM ASL code
|
|
continues to misbehave (which it will).
|
|
|
|
Several new ACPI exception codes have been added for the Mutex
|
|
support.
|
|
|
|
Recursive method calls are now allowed and supported (the ACPI
|
|
spec does in fact allow recursive method calls.) The number of
|
|
recursive calls is subject to the restrictions imposed by the
|
|
SERIALIZED method keyword and SyncLevel (ACPI 2.0) method
|
|
parameter.
|
|
|
|
Implemented support for the SyncLevel parameter for control
|
|
methods (ACPI 2.0 feature)
|
|
|
|
Fixed a deadlock problem when multiple threads attempted to use
|
|
the interpreter.
|
|
|
|
Fixed a problem where the string length of a String package
|
|
element was not always set in a package returned from
|
|
AcpiEvaluateObject.
|
|
|
|
Fixed a problem where the length of a String package element was
|
|
not always included in the length of the overall package returned
|
|
from AcpiEvaluateObject.
|
|
|
|
Added external interfaces (Acpi*) to the ACPI debug memory
|
|
manager. This manager keeps a list of all outstanding
|
|
allocations, and can therefore detect memory leaks and attempts to
|
|
free memory blocks more than once. Useful for code such as the
|
|
power manager, etc. May not be appropriate for device drivers.
|
|
Performance with the debug code enabled is slow.
|
|
|
|
The ACPI Global Lock is now an optional hardware element.
|
|
|
|
ASL Compiler Version X2015:
|
|
|
|
Integrated changes to allow the compiler to be generated on
|
|
multiple platforms.
|
|
|
|
Linux makefile added to generate the compiler on Linux
|
|
|
|
Source Code:
|
|
|
|
All platform-specific headers have been moved to their own
|
|
subdirectory, Include/Platform.
|
|
|
|
New source file added, Interpreter/ammutex.c
|
|
|
|
New header file, Include/acstruct.h
|
|
|
|
Documentation:
|
|
|
|
The programmer reference has been updated for the following new
|
|
interfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 02_08_01
|
|
|
|
Core ACPI CA Subsystem: Fixed a problem where an error was
|
|
incorrectly returned if the return resource buffer was larger than
|
|
the actual data (in the resource interfaces).
|
|
|
|
References to named objects within packages are resolved to the
|
|
|
|
full pathname string before packages are returned directly (via
|
|
the AcpiEvaluateObject interface) or indirectly via the resource
|
|
interfaces.
|
|
|
|
Linux OS Services Layer (OSL):
|
|
|
|
Improved /proc battery interface.
|
|
|
|
|
|
Added C-state debugging output and other miscellaneous fixes.
|
|
|
|
ASL Compiler Version X2014:
|
|
|
|
All defined method arguments can now be used as local variables,
|
|
including the ones that are not actually passed in as parameters.
|
|
The compiler tracks initialization of the arguments and issues an
|
|
exception if they are used without prior assignment (just like
|
|
locals).
|
|
|
|
The -o option now specifies a filename prefix that is used for all
|
|
output files, including the AML output file. Otherwise, the
|
|
default behavior is as follows: 1) the AML goes to the file
|
|
specified in the DSDT. 2) all other output files use the input
|
|
source filename as the base.
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 01_25_01
|
|
|
|
Core ACPI CA Subsystem: Restructured the implementation of object
|
|
store support within the interpreter. This includes support for
|
|
the Store operator as well as any ASL operators that include a
|
|
target operand.
|
|
|
|
Partially implemented support for Implicit Result-to-Target
|
|
conversion. This is when a result object is converted on the fly
|
|
to the type of an existing target object. Completion of this
|
|
support is pending further analysis of the ACPI specification
|
|
concerning this matter.
|
|
|
|
CPU-specific code has been removed from the subsystem (hardware
|
|
directory).
|
|
|
|
New Power Management Timer functions added
|
|
|
|
Linux OS Services Layer (OSL): Moved system state transition code
|
|
to the core, fixed it, and modified Linux OSL accordingly.
|
|
|
|
Fixed C2 and C3 latency calculations.
|
|
|
|
|
|
We no longer use the compilation date for the version message on
|
|
initialization, but retrieve the version from AcpiGetSystemInfo().
|
|
|
|
Incorporated for fix Sony VAIO machines.
|
|
|
|
Documentation: The Programmer Reference has been updated and
|
|
reformatted.
|
|
|
|
|
|
ASL Compiler: Version X2013: Fixed a problem where the line
|
|
numbering and error reporting could get out of sync in the
|
|
presence of multiple include files.
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 01_15_01
|
|
|
|
Core ACPI CA Subsystem:
|
|
|
|
Implemented support for type conversions in the execution of the
|
|
ASL Concatenate operator (The second operand is converted to
|
|
match the type of the first operand before concatenation.)
|
|
|
|
Support for implicit source operand conversion is partially
|
|
implemented. The ASL source operand types Integer, Buffer, and
|
|
String are freely interchangeable for most ASL operators and are
|
|
converted by the interpreter on the fly as required. Implicit
|
|
Target operand conversion (where the result is converted to the
|
|
target type before storing) is not yet implemented.
|
|
|
|
Support for 32-bit and 64-bit BCD integers is implemented.
|
|
|
|
Problem fixed where a field read on an aligned field could cause a
|
|
read past the end of the field.
|
|
|
|
New exception, AE_AML_NO_RETURN_VALUE, is returned when a method
|
|
does not return a value, but the caller expects one. (The ASL
|
|
compiler flags this as a warning.)
|
|
|
|
ASL Compiler:
|
|
|
|
Version X2011:
|
|
1. Static typechecking of all operands is implemented. This
|
|
prevents the use of invalid objects (such as using a Package where
|
|
an Integer is required) at compile time instead of at interpreter
|
|
run-time.
|
|
2. The ASL source line is printed with ALL errors and warnings.
|
|
3. Bug fix for source EOF without final linefeed.
|
|
4. Debug option is split into a parse trace and a namespace trace.
|
|
5. Namespace output option (-n) includes initial values for
|
|
integers and strings.
|
|
6. Parse-only option added for quick syntax checking.
|
|
7. Compiler checks for duplicate ACPI name declarations
|
|
|
|
Version X2012:
|
|
1. Relaxed typechecking to allow interchangeability between
|
|
strings, integers, and buffers. These types are now converted by
|
|
the interpreter at runtime.
|
|
2. Compiler reports time taken by each internal subsystem in the
|
|
debug output file.
|
|
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 12_14_00
|
|
|
|
ASL Compiler:
|
|
|
|
This is the first official release of the compiler. Since the
|
|
compiler requires elements of the Core Subsystem, this label
|
|
synchronizes everything.
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 12_08_00
|
|
|
|
|
|
Fixed a problem where named references within the ASL definition
|
|
of both OperationRegions and CreateXXXFields did not work
|
|
properly. The symptom was an AE_AML_OPERAND_TYPE during
|
|
initialization of the region/field. This is similar (but not
|
|
related internally) to the problem that was fixed in the last
|
|
label.
|
|
|
|
Implemented both 32-bit and 64-bit support for the BCD ASL
|
|
functions ToBCD and FromBCD.
|
|
|
|
Updated all legal headers to include "2000" in the copyright
|
|
years.
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 12_01_00
|
|
|
|
Fixed a problem where method invocations within the ASL definition
|
|
of both OperationRegions and CreateXXXFields did not work
|
|
properly. The symptom was an AE_AML_OPERAND_TYPE during
|
|
initialization of the region/field:
|
|
|
|
nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments
|
|
[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s)
|
|
(0x3005)
|
|
|
|
Fixed a problem where operators with more than one nested
|
|
subexpression would fail. The symptoms were varied, by mostly
|
|
AE_AML_OPERAND_TYPE errors. This was actually a rather serious
|
|
problem that has gone unnoticed until now.
|
|
|
|
Subtract (Add (1,2), Multiply (3,4))
|
|
|
|
Fixed a problem where AcpiGetHandle didn't quite get fixed in the
|
|
previous build (The prefix part of a relative path was handled
|
|
incorrectly).
|
|
|
|
Fixed a problem where Operation Region initialization failed if
|
|
the operation region name was a "namepath" instead of a simple
|
|
"nameseg". Symptom was an AE_NO_OPERAND error.
|
|
|
|
Fixed a problem where an assignment to a local variable via the
|
|
indirect RefOf mechanism only worked for the first such
|
|
assignment. Subsequent assignments were ignored.
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 11_15_00
|
|
|
|
ACPI 2.0 table support with backwards support for ACPI 1.0 and the
|
|
0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables,
|
|
the AML interpreter does NOT have support for the new 2.0 ASL
|
|
grammar terms at this time.
|
|
|
|
All ACPI hardware access is via the GAS structures in the ACPI 2.0
|
|
FADT.
|
|
|
|
All physical memory addresses across all platforms are now 64 bits
|
|
wide. Logical address width remains dependent on the platform
|
|
(i.e., "void *").
|
|
|
|
AcpiOsMapMemory interface changed to a 64-bit physical address.
|
|
|
|
The AML interpreter integer size is now 64 bits, as per the ACPI
|
|
2.0 specification.
|
|
|
|
For backwards compatibility with ACPI 1.0, ACPI tables with a
|
|
revision number less than 2 use 32-bit integers only.
|
|
|
|
Fixed a problem where the evaluation of OpRegion operands did not
|
|
always resolve them to numbers properly.
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 10_20_00
|
|
|
|
Fix for CBN_._STA issue. This fix will allow correct access to
|
|
CBN_ OpRegions when the _STA returns 0x8.
|
|
|
|
Support to convert ACPI constants (Ones, Zeros, One) to actual
|
|
values before a package object is returned
|
|
|
|
Fix for method call as predicate to if/while construct causing
|
|
incorrect if/while behavior
|
|
|
|
Fix for Else block package lengths sometimes calculated wrong (if
|
|
block > 63 bytes)
|
|
|
|
Fix for Processor object length field, was always zero
|
|
|
|
Table load abort if FACP sanity check fails
|
|
|
|
Fix for problem with Scope(name) if name already exists
|
|
|
|
Warning emitted if a named object referenced cannot be found
|
|
(resolved) during method execution.
|
|
|
|
|
|
|
|
|
|
|
|
------------------------------------------
|
|
Summary of changes for this label: 9_29_00
|
|
|
|
New table initialization interfaces: AcpiInitializeSubsystem no
|
|
longer has any parameters AcpiFindRootPointer - Find the RSDP (if
|
|
necessary) AcpiLoadTables (RSDP) - load all tables found at RSDP-
|
|
>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by
|
|
AcpiLoadTables
|
|
|
|
Note: These interface changes require changes to all existing OSDs
|
|
|
|
The PCI_Config default address space handler is always installed
|
|
at the root namespace object.
|
|
|
|
-------------------------------------------
|
|
Summary of changes for this label: 09_15_00
|
|
|
|
The new initialization architecture is implemented. New
|
|
interfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize)
|
|
AcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace
|
|
|
|
(Namespace is automatically loaded when a table is loaded)
|
|
|
|
The ACPI_OPERAND_OBJECT has been optimized to shrink its size from
|
|
52 bytes to 32 bytes. There is usually one of these for every
|
|
namespace object, so the memory savings is significant.
|
|
|
|
Implemented just-in-time evaluation of the CreateField operators.
|
|
|
|
Bug fixes for IA-64 support have been integrated.
|
|
|
|
Additional code review comments have been implemented
|
|
|
|
The so-called "third pass parse" has been replaced by a final walk
|
|
through the namespace to initialize all operation regions (address
|
|
spaces) and fields that have not yet been initialized during the
|
|
execution of the various _INI and REG methods.
|
|
|
|
New file - namespace/nsinit.c
|
|
|
|
-------------------------------------------
|
|
Summary of changes for this label: 09_01_00
|
|
|
|
Namespace manager data structures have been reworked to change the
|
|
primary object from a table to a single object. This has
|
|
resulted in dynamic memory savings of 3X within the namespace and
|
|
2X overall in the ACPI CA subsystem.
|
|
|
|
Fixed problem where the call to AcpiEvFindPciRootBuses was
|
|
inadvertently left commented out.
|
|
|
|
Reduced the warning count when generating the source with the GCC
|
|
compiler.
|
|
|
|
Revision numbers added to each module header showing the
|
|
SourceSafe version of the file. Please refer to this version
|
|
number when giving us feedback or comments on individual modules.
|
|
|
|
The main object types within the subsystem have been renamed to
|
|
clarify their purpose:
|
|
|
|
ACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT
|
|
ACPI_GENERIC_OP -> ACPI_PARSE_OBJECT
|
|
ACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE
|
|
|
|
NOTE: no changes to the initialization sequence are included in
|
|
this label.
|
|
|
|
-------------------------------------------
|
|
Summary of changes for this label: 08_23_00
|
|
|
|
Fixed problem where TerminateControlMethod was being called
|
|
multiple times per method
|
|
|
|
Fixed debugger problem where single stepping caused a semaphore to
|
|
be oversignalled
|
|
|
|
Improved performance through additional parse object caching -
|
|
added ACPI_EXTENDED_OP type
|
|
|
|
-------------------------------------------
|
|
Summary of changes for this label: 08_10_00
|
|
|
|
Parser/Interpreter integration: Eliminated the creation of
|
|
complete parse trees for ACPI tables and control methods.
|
|
Instead, parse subtrees are created and then deleted as soon as
|
|
they are processed (Either entered into the namespace or executed
|
|
by the interpreter). This reduces the use of dynamic kernel
|
|
memory significantly. (about 10X)
|
|
|
|
Exception codes broken into classes and renumbered. Be sure to
|
|
recompile all code that includes acexcep.h. Hopefully we won't
|
|
have to renumber the codes again now that they are split into
|
|
classes (environment, programmer, AML code, ACPI table, and
|
|
internal).
|
|
|
|
Fixed some additional alignment issues in the Resource Manager
|
|
subcomponent
|
|
|
|
Implemented semaphore tracking in the AcpiExec utility, and fixed
|
|
several places where mutexes/semaphores were being unlocked
|
|
without a corresponding lock operation. There are no known
|
|
semaphore or mutex "leaks" at this time.
|
|
|
|
Fixed the case where an ASL Return operator is used to return an
|
|
unnamed package.
|
|
|
|
-------------------------------------------
|
|
Summary of changes for this label: 07_28_00
|
|
|
|
Fixed a problem with the way addresses were calculated in
|
|
AcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem
|
|
manifested itself when a Field was created with WordAccess or
|
|
DwordAccess, but the field unit defined within the Field was less
|
|
|
|
than a Word or Dword.
|
|
|
|
Fixed a problem in AmlDumpOperands() module's loop to pull
|
|
operands off of the operand stack to display information. The
|
|
problem manifested itself as a TLB error on 64-bit systems when
|
|
accessing an operand stack with two or more operands.
|
|
|
|
Fixed a problem with the PCI configuration space handlers where
|
|
context was getting confused between accesses. This required a
|
|
change to the generic address space handler and address space
|
|
setup definitions. Handlers now get both a global handler context
|
|
(this is the one passed in by the user when executing
|
|
AcpiInstallAddressSpaceHandler() and a specific region context
|
|
that is unique to each region (For example, the _ADR, _SEG and
|
|
_BBN values associated with a specific region). The generic
|
|
function definitions have changed to the following:
|
|
|
|
typedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function,
|
|
UINT32 Address, UINT32 BitWidth, UINT32 *Value, void
|
|
*HandlerContext, // This used to be void *Context void
|
|
*RegionContext); // This is an additional parameter
|
|
|
|
typedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE
|
|
RegionHandle, UINT32 Function, void *HandlerContext, void
|
|
**RegionContext); // This used to be **ReturnContext
|
|
|
|
-------------------------------------------
|
|
Summary of changes for this label: 07_21_00
|
|
|
|
Major file consolidation and rename. All files within the
|
|
interpreter have been renamed as well as most header files. This
|
|
was done to prevent collisions with existing files in the host
|
|
OSs -- filenames such as "config.h" and "global.h" seem to be
|
|
quite common. The VC project files have been updated. All
|
|
makefiles will require modification.
|
|
|
|
The parser/interpreter integration continues in Phase 5 with the
|
|
implementation of a complete 2-pass parse (the AML is parsed
|
|
twice) for each table; This avoids the construction of a huge
|
|
parse tree and therefore reduces the amount of dynamic memory
|
|
required by the subsystem. Greater use of the parse object cache
|
|
means that performance is unaffected.
|
|
|
|
Many comments from the two code reviews have been rolled in.
|
|
|
|
The 64-bit alignment support is complete.
|
|
|
|
-------------------------------------------
|
|
Summary of changes for this label: 06_30_00
|
|
|
|
With a nod and a tip of the hat to the technology of yesteryear,
|
|
we've added support in the source code for 80 column output
|
|
devices. The code is now mostly constrained to 80 columns or
|
|
less to support environments and editors that 1) cannot display
|
|
or print more than 80 characters on a single line, and 2) cannot
|
|
disable line wrapping.
|
|
|
|
A major restructuring of the namespace data structure has been
|
|
completed. The result is 1) cleaner and more
|
|
understandable/maintainable code, and 2) a significant reduction
|
|
in the dynamic memory requirement for each named ACPI object
|
|
(almost half).
|
|
|
|
-------------------------------------------
|
|
Summary of changes for this label: 06_23_00
|
|
|
|
Linux support has been added. In order to obtain approval to get
|
|
the ACPI CA subsystem into the Linux kernel, we've had to make
|
|
quite a few changes to the base subsystem that will affect all
|
|
users (all the changes are generic and OS- independent). The
|
|
effects of these global changes have been somewhat far reaching.
|
|
Files have been merged and/or renamed and interfaces have been
|
|
renamed. The major changes are described below.
|
|
|
|
Osd* interfaces renamed to AcpiOs* to eliminate namespace
|
|
pollution/confusion within our target kernels. All OSD
|
|
interfaces must be modified to match the new naming convention.
|
|
|
|
Files merged across the subsystem. A number of the smaller source
|
|
and header files have been merged to reduce the file count and
|
|
increase the density of the existing files. There are too many
|
|
to list here. In general, makefiles that call out individual
|
|
files will require rebuilding.
|
|
|
|
Interpreter files renamed. All interpreter files now have the
|
|
prefix am* instead of ie* and is*.
|
|
|
|
Header files renamed: The acapi.h file is now acpixf.h. The
|
|
acpiosd.h file is now acpiosxf.h. We are removing references to
|
|
the acronym "API" since it is somewhat windowsy. The new name is
|
|
"external interface" or xface or xf in the filenames.j
|
|
|
|
|
|
All manifest constants have been forced to upper case (some were
|
|
mixed case.) Also, the string "ACPI_" has been prepended to many
|
|
(not all) of the constants, typedefs, and structs.
|
|
|
|
The globals "DebugLevel" and "DebugLayer" have been renamed
|
|
"AcpiDbgLevel" and "AcpiDbgLayer" respectively.
|
|
|
|
All other globals within the subsystem are now prefixed with
|
|
"AcpiGbl_" Internal procedures within the subsystem are now
|
|
prefixed with "Acpi" (with only a few exceptions). The original
|
|
two-letter abbreviation for the subcomponent remains after "Acpi"
|
|
- for example, CmCallocate became AcpiCmCallocate.
|
|
|
|
Added a source code translation/conversion utility. Used to
|
|
generate the Linux source code, it can be modified to generate
|
|
other types of source as well. Can also be used to cleanup
|
|
existing source by removing extraneous spaces and blank lines.
|
|
Found in tools/acpisrc/*
|
|
|
|
OsdUnMapMemory was renamed to OsdUnmapMemory and then
|
|
AcpiOsUnmapMemory. (UnMap became Unmap).
|
|
|
|
A "MaxUnits" parameter has been added to AcpiOsCreateSemaphore.
|
|
When set to one, this indicates that the caller wants to use the
|
|
|
|
semaphore as a mutex, not a counting semaphore. ACPI CA uses
|
|
both types. However, implementers of this call may want to use
|
|
different OS primitives depending on the type of semaphore
|
|
requested. For example, some operating systems provide separate
|
|
|
|
"mutex" and "semaphore" interfaces - where the mutex interface is
|
|
much faster because it doesn't have all the overhead of a full
|
|
semaphore implementation.
|
|
|
|
Fixed a deadlock problem where a method that accesses the PCI
|
|
address space can block forever if it is the first access to the
|
|
space.
|
|
|
|
-------------------------------------------
|
|
Summary of changes for this label: 06_02_00
|
|
|
|
Support for environments that cannot handle unaligned data
|
|
accesses (e.g. firmware and OS environments devoid of alignment
|
|
handler technology namely SAL/EFI and the IA-64 Linux kernel) has
|
|
been added (via configurable macros) in these three areas: -
|
|
Transfer of data from the raw AML byte stream is done via byte
|
|
moves instead of word/dword/qword moves. - External objects are
|
|
aligned within the user buffer, including package elements (sub-
|
|
objects). - Conversion of name strings to UINT32 Acpi Names is now
|
|
done byte-wise.
|
|
|
|
The Store operator was modified to mimic Microsoft's
|
|
implementation when storing to a Buffer Field.
|
|
|
|
Added a check of the BM_STS bit before entering C3.
|
|
|
|
The methods subdirectory has been obsoleted and removed. A new
|
|
file, cmeval.c subsumes the functionality.
|
|
|
|
A 16-bit (DOS) version of AcpiExec has been developed. The
|
|
makefile is under the acpiexec directory.
|