Lines Matching refs:the
9 Temporarily reverted the new arbitrary bit length/alignment support in
10 AcpiHwRead/AcpiHwWrite for the Generic Address Structure. There have been
11 a number of regressions with the new code that need to be fully resolved
19 Fixed a couple of GCC warnings associated with the use of the -Wcast-qual
22 Example Code and Data Size: These are the sizes for the OS-independent
23 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
24 debug version of the code includes the debug output trace mechanism and
39 Fixed a regression in the GAS (generic address structure) arbitrary bit
44 was added to each of these macros, and the original name has been
45 deprecated. The AML disassembler will always disassemble to the new
46 names. Support for the new macros was added to iASL, disassembler,
47 resource manager, and the acpihelp utility. ACPICA BZ 1274.
53 ACPI 6.0: Added support for a new integer field that was appended to the
54 package object returned by the _BIX method. This adds iASL compile-time
60 Example Code and Data Size: These are the sizes for the OS-independent
61 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
62 debug version of the code includes the debug output trace mechanism and
76 "module-level code" to be created and executed under the various
78 supported in all known AML interpreters, and the grammar change will
79 appear in the next version of the ACPI specification. Simplifies the
89 ease-of-use to the ASL language. The syntax is similar to the
90 corresponding C operator, and is implemented with the existing AML While
108 iASL: Fixed several issues with the constant folding feature. The
112 iASL/Disassembler: Fixed a couple issues with the Else{If{}...}
113 conversion to the ASL ElseIf operator where incorrect ASL code could be
116 iASL/Disassembler: Fixed a problem with the ASL+ code disassembly where
119 with recompilation of the disassembled code, it made the code more
122 iASL: Changed to ignore the unreferenced detection for predefined names
123 of resource descriptor elements, when the resource descriptor is
135 defined by the Generic Address Structure. Previously, only aligned bit
140 Fixed an issue where the \_SB._INI method sometimes must be evaluated
149 DMAR: Added new constants per the 10/2014 DMAR spec.
150 IORT: Added new subtable per the 10/2015 IORT spec.
152 DBG2: Added new constants per the 12/2015 DBG2 spec.
153 FPDT: Fixed several incorrect fields, add the FPDT boot record structure.
157 Updated header support for the DMAR table to match the current version of
158 the related spec.
160 Added extensions to the ASL Concatenate operator to allow any ACPI object
162 simply returns a string containing the object type. This extends the
163 usefulness of the Printf macros. Previously, Concatenate would abort the
166 ACPICA source code: Deployed the C "const" keyword across the source code
169 Example Code and Data Size: These are the sizes for the OS-independent
170 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
171 debug version of the code includes the debug output trace mechanism and
184 iASL/Disassembler: Improved the heuristic used to determine the number of
187 "guess" the number of method arguments. Only the ACPI 6.0 External opcode
192 statements that could cause errors when the disassembled file is
195 iASL: Fixed a regression caused by the merger of the two versions of the
212 Implemented full support for the ACPI 6.1 specification (released in
213 January). This version of the specification is available at:
228 grammar elements). While the new behavior is supported by the ACPI
231 this support. Therefore, the change was reverted to the original ACPICA
234 ACPICA now supports the GCC 6 compiler.
246 Completed full support for the ACPI 6.0 External() AML opcode. The
248 This opcode is used by the disassembler to assist with the disassembly of
249 external control methods by specifying the required number of arguments
250 for the method. AML interpreters do not use this opcode. To ensure that
251 interpreters do not even see the opcode, a block of one or more external
253 commonly deployed in BIOS code, the ability of disassemblers to correctly
257 The -lx option will create a the cross-reference file with the suffix
261 - List of references to each non-method object in the namespace
264 flagged as errors in preparation for ACPI 6.2 (see the description of the
272 Updated all ACPICA copyrights and signons to 2016: Added the 2016
274 This includes the standard Linux dual-license header. This affects
275 virtually every file in the ACPICA core subsystem, iASL compiler, all
276 ACPICA utilities, and the ACPICA test suite.
278 Fixed a regression introduced in version 20151218 concerning the
281 entered into the namespace and could cause an interpreter fault when
284 Example Code and Data Size: These are the sizes for the OS-independent
285 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
286 debug version of the code includes the debug output trace mechanism and
299 Fixed a problem with the compilation of the GpioIo and GpioInt resource
301 of 32-bit values, but the _PIN values are in fact 16 bits each. This
303 to access the descriptors.
312 ACPI tables are loaded into the namespace during ACPICA initialization.
314 immediately after the table is loaded, instead of batched and executed
315 after all of the tables have been loaded. This provides compatibility
319 To fully support the feature above, the default operation region handlers
320 for the SystemMemory, SystemIO, and PCI_Config address spaces are now
322 code to access these address spaces during the table load and module-
326 Implemented several changes to the internal _REG support in conjunction
327 with the changes above. Also, changes to the AcpiExec/AcpiNames/Examples
328 utilities for the changes above. Although these tools were changed, host
329 operating systems that simply use the default handlers for SystemMemory,
332 For example, in the code below, DEV1 is conditionally added to the
333 namespace by the DSDT via module-level code that accesses an operation
334 region. The SSDT references DEV1 via the Scope operator. DEV1 must be
335 created immediately after the DSDT is loaded in order for the SSDT to
337 AE_NOT_EXIST exception during the load of the SSDT. Now, this code is
363 not handled correctly when the invocation was itself a SuperName argument
364 to another ASL operator. In these cases, the method was not invoked.
365 ACPICA BZ 1002. Affects the following ASL operators that have a SuperName
379 the reference into an unexpected string object. This support detects the
380 problem and corrects it before the package is returned to the caller that
381 invoked the method. Lv Zheng.
383 Implemented extensions to the Concatenate operator. Concatenate now
386 the argument is treated as a string containing the name of the object
387 type. This expands the utility of Concatenate and the Printf/Fprintf
390 Cleaned up the output of the ASL Debug object. The timer() value is now
391 optional and no longer emitted by default. Also, the basic data types of
393 type string -- since the data type is obvious from the output. ACPICA BZ
396 Example Code and Data Size: These are the sizes for the OS-independent
397 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
398 debug version of the code includes the debug output trace mechanism and
411 iASL: Fixed some issues with the ASL Include() operator. This operator
412 was incorrectly defined in the iASL parser rules, causing a new scope to
413 be opened for the code within the include file. This could lead to
415 and not supported by AML interpreters. Note, this does not affect the
418 iASL/Disassembler: Implemented support for the ASL ElseIf operator. This
420 associated with it. The code emitted by the iASL compiler for ElseIf is
423 If. This simplifies the decoded ASL, especially for deeply nested
424 If..Else and large Switch constructs. Thus, the disassembled code more
425 closely follows the original source ASL. ACPICA BZ 1211. Example:
442 AcpiExec: Added support for the new module level code behavior and the
443 early region installation. This required a small change to the
447 AcpiExec: Added support to make the debug object timer optional. Default
448 is timer disabled. This cleans up the debug object output -- the timer
451 AcpiExec: Multiple ACPI tables are now loaded in the order that they
452 appear on the command line. This can be important when there are
453 interdependencies/references between the tables.
457 specify the number of SSDTs (in addition to a single DSDT). ACPICA BZ
470 Fixed a problem where the method auto-serialization could interfere with
471 the current SyncLevel. This change makes the auto-serialization support
472 transparent to the SyncLevel support and management.
474 Removed support for the _SUB predefined name in AcpiGetObjectInfo. This
475 interface is intended for early access to the namespace during the
477 access operation regions in some cases, causing errors because the
480 AML Debugger: Fixed some issues with the terminate/quit/exit commands
484 to the AML Debugger thread. This prevents runtime errors within some
487 Eliminated extraneous warnings from AcpiGetSleepTypeData. Since the _Sx
489 emitted for the case where one or more of these methods do not exist.
492 Made a major pass through the entire ACPICA source code base to
495 differences from the previous ACPICA release.
497 Example Code and Data Size: These are the sizes for the OS-independent
498 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
499 debug version of the code includes the debug output trace mechanism and
513 definition blocks within a single ASL file and the resulting AML file.
514 Support for this type of file was also added to the various tools that
515 use binary AML files: acpiexec, acpixtract, and the AML disassembler. The
516 example code below shows two definition blocks within the same file:
526 iASL: Enhanced typechecking for the Name() operator. All expressions for
527 the value of the named object must be reduced/folded to a single constant
528 at compile time, as per the ACPI specification (the AML definition of
531 iASL: Fixed some code indentation issues for the -ic and -ia options (C
535 object defined in an SSDT. The DSDT is always loaded into the namespace
546 the in-kernel version of the AML debugger. Lv Zheng.
547 - Fix the "predefined" command for in-kernel debugger.
548 - Do not enter debug command loop for the help and version commands.
553 For example, the target cannot be a non-data object such as a Device,
554 Mutex, ThermalZone, etc., as per the ACPI specification.
556 Debugger: Fixed the double-mutex user I/O handshake to work when local
563 Updated the definition of the NFIT table to correct the bit polarity of
566 Example Code and Data Size: These are the sizes for the OS-independent
567 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
568 debug version of the code includes the debug output trace mechanism and
581 iASL: Improved the compile-time typechecking for operands of many of the
587 -- For the following operators, the TermArg operands are now validated
591 -- Store (Source, Target): Both the source and target operands are
592 resolved and checked that the operands are both legal. For example,
594 ThermalZone, etc. Note, as per the ACPI specification, the CopyObject
597 -- Store (Source, Target): If the source is a Package object, the target
598 must be a Package object, LocalX, ArgX, or Debug. Likewise, if the target
599 is a Package, the source must also be a Package.
601 -- Store (Source, Target): A warning is issued if the source and target
602 resolve to the identical named object.
604 -- Store (Source, <method invocation>): An error is generated for the
605 target method invocation, as this construct is not supported by the AML
608 -- For all ASL math and logic operators, the target operand must be a
610 includes the function return value also.
612 -- External declarations are also included in the typechecking where
613 possible. External objects defined using the UnknownObj keyword cannot be
616 iASL and Disassembler: Added symbolic (ASL+) support for the ASL Index
620 This completes the ACPI 6.0 ASL+ support as it was the only operator not
623 iASL: Fixed the file suffix for the preprocessor output file (.i). Two
624 spaces were inadvertently appended to the filename, causing file access
627 ASL Test Suite (ASLTS): Updated the master makefile to generate all
628 possible compiler output files when building the test suite -- thus
629 exercising these features of the compiler. These files are automatically
630 deleted when the test suite exits.
641 Completed development to ensure that the ACPICA Disassembler and Debugger
652 Removed unnecessary conditional compilations across the Debugger and
655 The aapits test is deprecated and has been removed from the ACPICA git
671 - AcpiExec: Emit OemTableId for SSDTs during the load phase for table
680 Example Code and Data Size: These are the sizes for the OS-independent
681 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
682 debug version of the code includes the debug output trace mechanism and
695 AcpiExec: Fixed a problem where any more than 32 ACPI tables in the XSDT
697 and use the ACPICA auto-reallocate mechanism for ACPI table data
711 Debugger: Add option to the "objects" command to display a summary of the
713 the command is entered with no arguments.
723 Improved the partitioning between the Debugger and Disassembler
724 components. This allows the Debugger to be used standalone within kernel
725 code without the Disassembler (which is used for single stepping also).
728 Debugger: Implemented a new command to trace the execution of control
729 methods (Trace). This is especially useful for the in-kernel version of
730 the debugger when file I/O may not be available for method trace output.
731 See the ACPICA reference for more information. Lv Zheng.
733 Moved all C library prototypes (used for the local versions of these
735 Cleaned up the use of non-ANSI C library functions. These functions are
739 Debugger: Fixed a problem with the "!!" command (get last command
740 executed) where the debugger could enter an infinite loop and eventually
743 Removed the use of local macros that were used for some of the standard C
745 affected the is* functions where the input parameter is defined to be an
746 int. This required a few modifications to the main ACPICA source code to
750 Across the source code, added additional status/error checking to resolve
753 Example Code and Data Size: These are the sizes for the OS-independent
754 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
755 debug version of the code includes the debug output trace mechanism and
768 iASL: Fixed a regression where the device map file feature no longer
769 worked properly when used in conjunction with the disassembler. It only
770 worked properly with the compiler itself.
774 to ArgX variables that are not defined by the parent method, and are
777 iASL/Preprocessor: Finished the pass-through of line numbers from the
778 preprocessor to the compiler. This ensures that compiler errors/warnings
779 have the correct original line numbers and filenames, regardless of any
782 iASL/Preprocessor: Fixed a couple of issues with comment handling and the
783 pass-through of comments to the preprocessor output file (which becomes
784 the compiler input file). Also fixed a problem with // comments that
787 iASL: Added support for the TCPA server table to the table compiler and
790 iASL/Preprocessor: Added a permanent #define of the symbol "__IASL__" to
791 identify the iASL compiler.
793 Cleaned up the use of the macros NEGATIVE and POSITIVE which were defined
797 AcpiHelp: Update to expand help messages for the iASL preprocessor
806 Fixes some problems/issues with the C library macro removal (ACPI_STRLEN,
807 etc.) This update changes ACPICA to only use the standard headers for
808 functions, or the prototypes for the local versions of the C library
809 functions. Across the source code, this required some additional casts
813 Fixes several problems with recent changes to the handling of the FACS
823 Across the entire ACPICA source code base, the various macros for the C
825 replaced by the standard C library names (strlen, etc.) The original
827 reduces the number of macros used in the ACPICA source code
830 Implemented support for a new ACPI table, the OSDT. This table, the
831 "override" SDT, can be loaded directly by the host OS at boot time. It
832 enables the replacement of existing namespace objects that were installed
833 via the DSDT and/or SSDTs. The primary purpose for this is to replace
834 buggy or incorrect ASL/AML code obtained via the BIOS. The OSDT is slated
835 for inclusion in a future version of the ACPI Specification. Lv Zheng/Bob
839 table (via FADT 32-bit legacy field) and a "64-bit" table (via the 64-bit
841 be systems found with this issue. This support requires a change to the
843 been added to allow the host to select which FACS is desired
844 (AcpiGbl_Use32BitFacsAddresses). See the ACPICA reference for more
848 Although this is already supported on hardware-reduced platforms, the
850 not want to abort the entire ACPICA initialization just because the
853 Fixed a problem where the GUID strings for NFIT tables (in acuuid.h) were
854 not correctly transcribed from the ACPI specification in ACPICA version
857 Implemented support for the _CLS object in the AcpiGetObjectInfo external
860 Updated the definitions of the TCPA and TPM2 ACPI tables to the more
863 the disassembler/table-compiler at this time.
865 ACPI 6.0: Added definitions for the new GIC version field in the MADT.
867 Example Code and Data Size: These are the sizes for the OS-independent
868 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
869 debug version of the code includes the debug output trace mechanism and
882 Disassembler: Fixed a problem with the new symbolic operator disassembler
883 where incorrect ASL code could be emitted in some cases for the "non-
888 Modified the linux version of acpidump to obtain ACPI tables from not
892 iASL: Fixed a problem where the user preprocessor output file (.i)
895 keep compiler error messages in sync with the input file and line number
897 the compiler uses a new, different file for the original purpose.
899 iASL: Fixed a problem where comments within the original ASL source code
900 file were not passed through to the preprocessor output file, nor any
903 iASL: Fixed some issues for the handling of the "#include" preprocessor
904 directive and the similar (but not the same) "Include" ASL operator.
906 iASL: Add support for the new OSDT in both the disassembler and compiler.
908 iASL: Fixed a problem with the constant folding support where a Buffer
913 description text for the _REV predefined name. _REV now permanently
914 returns 2, as per the ACPI 6.0 specification.
916 Debugger: Enhanced the output of the Debug ASL object for references
917 produced by the Index operator. For Buffers and strings, only output the
918 actual byte pointed to by the index. For packages, only print the single
919 package element decoded by the index. Previously, the entire
922 iASL/Table-compiler: Fixed a regression where the "generic" data types
937 Example Code and Data Size: These are the sizes for the OS-independent
938 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
939 debug version of the code includes the debug output trace mechanism and
963 binary file as input and emits a named ascii buffer object into the ASL
979 a regression in the disassembler where incorrect operator
989 Permanently set the return value for the _REV predefined name. It now
991 deprecated in the future, and is now defined to be 1 for ACPI 1.0, and 2
995 Added the "Windows 2015" string to the _OSI support. ACPICA will now
998 Fixed several issues with the local version of the printf function.
1000 Added the C99 compiler option (-std=c99) to the Unix makefiles.
1012 iASL: Implemented an enhancement to the constant folding feature to
1013 transform the parse tree to a simple Store operation whenever possible:
1017 Updated support for the SLIC table (Software Licensing Description Table)
1018 in both the Data Table compiler and the disassembler. The SLIC table
1021 following the ACPI header is now defined to be "Proprietary Data", and as
1024 Implemented full support for the MSDM table as described in the document
1026 following the ACPI header is defined to be "Proprietary Data", and can
1029 Implemented the -Pn option for the iASL Table Compiler (was only
1030 implemented for the ASL compiler). This option disables the iASL
1034 around the Ascii equivalent data that is emitted as part of the "Raw
1035 Table Data" block. This prevents the iASL Preprocessor from possible
1036 confusion if/when the table is compiled.
1038 Disassembler: Added an option (-df) to force the disassembler to assume
1039 that the table being disassembled contains valid AML. This feature is
1043 Changes for the EFI version of the tools:
1047 iASL: Fixed a path issue with the __FILE__ operator by making the
1048 directory prefix optional within the internal SplitInputFilename
1053 Tests: Updated the makefile for proper generation of the AAPITS suite.
1061 Updated all ACPICA copyrights and signons to 2014. Added the 2014
1062 copyright to all module headers and signons, including the standard Linux
1063 header. This affects virtually every file in the ACPICA core subsystem,
1064 iASL compiler, all ACPICA utilities, and the test suites.
1068 storms that aren't easily managed by the normal handler. The raw handler
1069 allows disabling/renabling of the the GPE so that interrupt storms can be
1071 scenario, handlers should use the AcpiSetGpe() API to disable/enable the
1072 GPE. This API will leave the reference counts undisturbed, thereby
1073 preventing unintentional clearing of the GPE when the intent in only to
1080 Events: Always modify GPE registers under the GPE lock.
1085 _FORTIFY_SOURCE. This change removes the _FORTIFY_SOURCE flag from the
1088 errors when building ACPICA. This allows disabling the option without
1109 Disassembler: Fixed a problem with disassembly of the UartSerialBus
1110 macro. Changed "StopBitsNone" to the correct "StopBitsZero". David E.
1113 Disassembler: Fixed the Unicode macro support to add escape sequences.
1115 as the standard escapes for quote and backslash. Ensures that the
1120 writes to the ASL Debug object. Fprintf allows the specification of an
1121 ASL name as the target. Only a single format specifier is required, %o,
1122 since the AML interpreter dynamically converts objects to the required
1138 iASL: Added debug options (-bp, -bt) to dynamically prune levels of the
1139 ASL parse tree before the AML code is generated. This allows blocks of
1152 As an extension to the ASL language, iASL implements support for symbolic
1159 interpreters, since no new AML opcodes are created. To implement the
1160 extensions, the iASL compiler transforms the symbolic expressions into
1161 the legacy ASL/AML equivalents at compile time.
1163 Full symbolic expressions are supported, along with the standard C
1166 Full disassembler support for the symbolic expressions is provided, and
1168 via the disassembly process. By default, the disassembler now emits ASL+
1169 code with symbolic expressions. An option (-dl) is provided to force the
1172 Below is the complete list of the currently supported symbolic operators
1173 with examples. See the iASL User Guide for additional information.
1281 Updated the GPIO operation region handler interface (GeneralPurposeIo).
1283 with the related Field objects, the following changes to the interface
1284 have been made: The Address is now defined to be the offset in bits of
1285 the field unit from the previous invocation of a Connection. It can be
1286 viewed as a "Pin Number Index" into the connection resource descriptor.
1287 The BitWidth is the exact bit width of the field. It is usually one bit,
1288 but not always. See the ACPICA reference guide (section 8.8.6.2.1) for
1293 by the firmware), so that they cannot fire until they are enabled via
1296 Added a new return flag for the Event/GPE status interfaces --
1298 ACPI_EVENT_FLAGS_HAS_HANDLER flag is used to indicate that the event or
1300 affect the system. Lv Zheng.
1302 Example Code and Data Size: These are the sizes for the OS-independent
1303 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1304 debug version of the code includes the debug output trace mechanism and
1317 that could cause the compiler to crash. This was introduced inadvertently
1318 during the effort to eliminate compiler memory leaks. ACPICA BZ 1111,
1328 works for both the compiler and disassembler. See the iASL compiler user
1331 AcpiDump: Added support for the version 1 (ACPI 1.0) RSDP in addition to
1332 version 2. This corrects the AE_BAD_HEADER exception seen on systems with
1348 Fixed a problem related to the internal use of the Timer() operator where
1350 library. This divide is not actually necessary, so the code was
1353 ACPI 5.1: Added support for the runtime validation of the _DSD package
1354 (similar to the iASL support).
1356 ACPI 5.1/Headers: Added support for the GICC affinity subtable to the
1359 Example Code and Data Size: These are the sizes for the OS-independent
1360 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1361 debug version of the code includes the debug output trace mechanism and
1373 AcpiExec: Fixed a problem on unix systems where the original terminal
1374 state was not always properly restored upon exit. Seen when using the -v
1377 iASL: Fixed a problem with the validation of the ranges/length within the
1378 Memory24 resource descriptor. There was a boundary condition when the
1379 range was equal to the (length -1) caused by the fact that these values
1382 Disassembler: Fixed a problem with the GpioInt descriptor interrupt
1384 flags. The flags are actually 2 bits, not 1, and the "ActiveBoth" keyword
1388 ACPI 5.1: Added the GICC affinity subtable to the SRAT table. Supported
1389 in the disassembler, data table compiler, and table template generator.
1392 or _ADR must exist within the scope of a Device, as per the ACPI
1394 for the _DSD object.
1402 iASL: Added error checking for dependencies related to the _PSx power
1404 1) For _PS0, one of these must exist within the same scope: _PS1, _PS2,
1406 2) For _PS1, _PS2, and PS3: A _PS0 object must exist within the same
1410 deploying the existing object and string caches and adding new caches for
1411 the table compiler.
1413 iASL: Split the huge parser source file into multiple subfiles to improve
1414 manageability. Generation now requires the M4 macro preprocessor, which
1415 is part of the Bison distribution on both unix and windows platforms.
1439 Data Table compiler, disassembler, and the template generator.
1452 the deletion of Alias AML namespace objects. The problem affected both
1453 the core ACPICA and the ACPICA tools including iASL and AcpiExec.
1459 Updated the AcpiEnableGpe interface to disallow the enable if there is no
1460 handler or control method associated with the particular GPE. This will
1463 Updated GPE handling and dispatch by disabling the GPE before clearing
1464 the status bit for edge-triggered GPEs. Lv Zheng.
1466 Added Timer() support to the AML Debug object. The current timer value is
1467 now displayed with each invocation of (Store to) the debug object to
1471 Example Code and Data Size: These are the sizes for the OS-independent
1472 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1473 debug version of the code includes the debug output trace mechanism and
1486 Fixed an issue with the recently added local printf implementation,
1491 disassemble them to an invocation of the ToUUID operator. Also emit
1507 there are in fact many portability issues with printf, and the addition
1512 for the Linux kernel and is %uI64 for some MSVC versions.
1526 Implemented support for ACPICA generation within the EFI environment.
1527 Initially, the AcpiDump utility is supported in the UEFI shell
1531 portability. This allows the host to redirect error messages from the
1542 There are C library implementations of these functions in the new file
1543 service_layers/oslibcfs.c -- however, the functions can be implemented by
1544 the local host in any way necessary. Lv Zheng.
1548 initialization when it may not be possible to map the entire table in
1549 order to compute the checksum. Lv Zheng.
1551 Fixed a buffer allocation issue for the Generic Serial Bus support.
1553 variable-length buffers based upon the protocol indicated by the field
1562 Fixed a possible memory leak in an error return path within the function
1565 Example Code and Data Size: These are the sizes for the OS-independent
1566 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1567 debug version of the code includes the debug output trace mechanism and
1580 Disassembler: Add dump of ASCII equivalent text within a comment at the
1581 end of each line of the output for the Buffer() ASL operator.
1585 For older EFI platforms, use the ACPI 1.0 GUID during RSDP search if
1586 the ACPI 2.0 GUID fails.
1588 iASL: Fixed a problem where the compiler could fault if incorrectly given
1598 object. Added a comment that explains that the parent is guaranteed to be
1607 Implemented support to skip/ignore NULL address entries in the RSDT/XSDT.
1611 Removed an extraneous error message for the case where there are a large
1612 number of system GPEs (> 124). This was the "32-bit FADT register is too
1614 since the GPEx_BLK_LEN fields of the FADT are always used instead of the
1619 Implemented and deployed additional configuration support for the public
1624 Moved all public ACPICA runtime configuration globals to the public
1626 obsolete/unused globals. See the file acpixf.h. Lv Zheng.
1628 Documentation: Added a new section to the ACPICA reference describing the
1629 maximum number of GPEs that can be supported by the FADT-defined GPEs in
1630 block zero and one. About 1200 total. See section 4.4.1 of the ACPICA
1633 Example Code and Data Size: These are the sizes for the OS-independent
1634 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1635 debug version of the code includes the debug output trace mechanism and
1648 iASL and disassembler: Add full support for the LPIT table (Low Power
1649 Idle Table). Includes support in the disassembler, data table compiler,
1653 1) Add option to force the use of the RSDT (over the XSDT).
1654 2) Improve validation of the RSDP signature (use 8 chars instead of 4).
1660 Debugger: Updated the GPE command (which simulates a GPE by executing the
1662 to the GPE 0/1 FADT-defined blocks.
1666 were never set. This should help guarantee that the terminal is always
1667 left in the previous state on program exit.
1675 Updated the auto-serialize feature for control methods. This feature
1677 to prevent runtime errors. The update adds support to ignore the
1680 in the AML code. Although the use of SyncLevels is relatively rare, this
1682 appear on some machines starting with the 20140214 release.
1684 Added a new external interface to allow the host to install ACPI tables
1685 very early, before the namespace is even created. AcpiInstallTable gives
1686 the host additional flexibility for ACPI table management. Tables can be
1687 installed directly by the host as if they had originally appeared in the
1689 (anything except the DSDT and FACS). Adds a new file, tbdata.c, along
1690 with additional internal restructuring and cleanup. See the ACPICA
1693 Added validation of the checksum for all incoming dynamically loaded
1697 Updated the use of the AcpiOsWaitEventsComplete interface during Notify
1701 Added a warning for the use/execution of the ASL/AML Unload (table)
1704 in the field and the usage model and possible side-effects of the drastic
1707 Reverted the use of #pragma push/pop which was introduced in the 20140214
1709 compilers to make the use of this feature feasible for ACPICA at this
1713 Added the missing EXPORT_SYMBOL macros for the install and remove SCI
1717 1) Disabled the use of the "strchr" macro for the gcc-specific
1722 Example Code and Data Size: These are the sizes for the OS-independent
1723 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1724 debug version of the code includes the debug output trace mechanism and
1737 Disassembler: Added several new features to improve the readability of
1738 the resulting ASL code. Extra information is emitted within comment
1739 fields in the ASL code:
1741 2) Standard values for the Notify() operator are decoded to descriptive
1754 1) Added the -a option to display both the ASL syntax and the AML
1757 2) Added substring match support (similar to a wildcard) for the -i
1763 is a feature that is on the ACPICA to-be-done list.
1767 is made obsolete by the AcpiXtract utility.
1778 behavior is illegal as per the ACPI specification, but is nonetheless
1779 frequently seen in the field. Previously, this could lead to an
1780 AE_ALREADY_EXISTS exception if the method was actually entered by more
1785 supersedes the previous AcpiGbl_SerializeAllMethods option.
1787 Added the "Windows 2013" string to the _OSI support. ACPICA will now
1788 respond TRUE to _OSI queries with this string. It is the stated policy of
1789 ACPICA to add new strings to the _OSI support as soon as possible after
1790 they are defined. See the full ACPICA _OSI policy which has been added to
1791 the utilities/utosi.c file.
1793 Hardened/updated the _PRT return value auto-repair code:
1794 1) Do not abort the repair on a single subpackage failure, continue to
1796 2) Add check for the minimum subpackage length (4).
1799 Added support to avoid the possibility of infinite loops when traversing
1800 object linked lists. Never allow an infinite loop, even in the face of
1803 ACPICA headers: Deployed the use of #pragma pack(push) and #pragma
1804 pack(pop) directives to ensure that the ACPICA headers are independent of
1807 Example Code and Data Size: These are the sizes for the OS-independent
1808 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1809 debug version of the code includes the debug output trace mechanism and
1822 iASL/Table-compiler: Fixed a problem with support for the SPMI table. The
1824 change correctly forces the field to have a value of one. ACPICA BZ 1081.
1826 Debugger: Added missing support for the "Extra" and "Data" subobjects
1832 iASL: Removed the obsolete -g option to obtain ACPI tables from the
1833 Windows registry. This feature has been superseded by the acpidump
1842 Updated all ACPICA copyrights and signons to 2014. Added the 2014
1843 copyright to all module headers and signons, including the standard Linux
1844 header. This affects virtually every file in the ACPICA core subsystem,
1845 iASL compiler, all ACPICA utilities, and the test suites.
1847 Improved parameter validation for AcpiInstallGpeBlock. Added the
1850 2) There is not already a GPE block attached to the device.
1851 Likewise, with AcpiRemoveGpeBlock, ensure that the incoming object is a
1854 Correctly support "references" in the ACPI_OBJECT. This change fixes the
1856 to control methods via the evaluate object interface. This is probably
1860 output. This change improves the support for physical addresses in printf
1862 consistently outputs the appropriate number of bytes for each host. The
1867 Example Code and Data Size: These are the sizes for the OS-independent
1868 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1869 debug version of the code includes the debug output trace mechanism and
1882 iASL: Fix a possible fault when using the Connection() operator. Fixes a
1883 problem if the parent Field definition for the Connection operator refers
1886 AcpiExec: Load of local test tables is now optional. The utility has the
1888 However, there are enough of them that the output of the utility became
1889 confusing. With this change, only the required local tables are displayed
1890 (RSDP, XSDT, etc.) along with the actual tables loaded via the command
1891 line specification. This makes the default output simler and easier to
1892 understand. The -el command line option restores the original behavior
1896 expands the simulation of operation regions by supporting regions that
1897 overlap within the given address space. Supports SystemMemory and
1901 allows AcpiExec to simulate these address spaces, similar to the current
1905 The command "test objects" will exercise the entire namespace by writing
1906 new values to each data object, and ensuring that the write was
1909 Debugger: Added the "test predefined" command. This change makes this
1910 test public and puts it under the new "test" command. The test executes
1911 each and every predefined name within the current namespace.
1925 Added validation of the XSDT root table if it is present. Some older
1928 adds a new function to validate the XSDT before actually using it. If the
1930 using the RSDT instead. Original implementation by Zhao Yakui. Ported to
1933 Added a runtime option to ignore the XSDT and force the use of the RSDT.
1934 This change adds a runtime option that will force ACPICA to use the RSDT
1935 instead of the XSDT (AcpiGbl_DoNotUseXsdt). Although the ACPI spec
1936 requires that an XSDT be used instead of the RSDT, the XSDT has been
1939 Added a runtime option to favor 32-bit FADT register addresses over the
1941 addresses when there is a conflict between the 32-bit and 64-bit versions
1942 of the same register. The default behavior is to use the 64-bit version
1943 in accordance with the ACPI specification. This can now be overridden via
1944 the AcpiGbl_Use32BitFadtAddresses flag. ACPICA BZ 885. Lv Zheng.
1946 During the change above, the internal "Convert FADT" and "Verify FADT"
1947 functions have been merged to simplify the code, making it easier to
1951 Return an actual status from AcpiEvGetGpeXruptBlock and don't clobber the
1954 Added helper macros to extract bus/segment numbers from the HEST table.
1955 This change adds two macros to extract the encoded bus and segment
1956 numbers from the HEST Bus field - ACPI_HEST_BUS and ACPI_HEST_SEGMENT.
1959 Removed the unused ACPI_FREE_BUFFER macro. This macro is no longer used
1963 Example Code and Data Size: These are the sizes for the OS-independent
1964 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
1965 debug version of the code includes the debug output trace mechanism and
1980 that have been resolved internally by the inclusion of additional ACPI
1981 tables (via the iASL -e option). Without this change, the disassembler
1982 can emit multiple externals for the same object, or it become confused
1983 when the Scope() operator is used on an external object. Overall, greatly
1984 improves the ability to actually recompile the emitted ASL code when
1989 David Box. Fixed several errors related to the testing of the interpreter
1994 during the time the method is executing). A remark is issued for these
1997 iASL: Added full support for the DBG2 table. Adds full disassembler,
1998 table compiler, and template generator support for the DBG2 table (Debug
2001 iASL: Added full support for the PCCT table, update the table definition.
2002 Updates the PCCT table definition in the actbl3.h header and adds table
2007 suppressed. This can simplify debugging when only the errors are
2009 warnings and remarks -- but only the actual errors are of real interest.
2011 Example ACPICA code (source/tools/examples): Updated the example code so
2013 ACPI tables and execution of an example control method in the DSDT. Added
2025 Resource Manager: Fixed loop termination for the "get AML length"
2027 pointer, which can never happen since the loop simply increments a valid
2028 resource pointer. This fix changes the loop to terminate with an error on
2037 to delete the entire list of attached objects (attached via
2038 AcpiAttachObject) instead of just one of the attached items. ACPICA BZ
2041 ACPICA termination: Added support to delete all objects attached to the
2043 attached to the root node via AcpiAttachData. Previously, none of these
2046 Debug output: Do not emit the function nesting level for the in-kernel
2048 execution. Therefore, only enable this output for the AcpiExec utility.
2049 Also, only emit the thread ID when executing under AcpiExec (Context
2053 Example Code and Data Size: These are the sizes for the OS-independent
2054 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2055 debug version of the code includes the debug output trace mechanism and
2068 AcpiExec/Unix-OSL: Use <termios.h> instead of <termio.h>. This is the
2071 Disassembler: Fixed control method invocation issues related to the use
2072 of the CondRefOf() operator. The problem is seen in the disassembly where
2073 control method invocations may not be disassembled properly if the
2075 The solution is to not attempt to emit an external declaration for the
2076 CondRefOf target (it is not necessary in the first place). This prevents
2079 Unix Makefiles: Added an option to disable compiler optimizations and the
2083 optimizations and the _FORTIFY_SOURCE compiler flag. The default
2084 optimization is -O2 with the _FORTIFY_SOURCE flag specified. ACPICA BZ
2089 test modes and test cases. Also added an option to disable the forced
2090 generation of the ACPICA tools from source if desired. Lv Zheng.
2103 reference to a field object did not complete the automatic dereference
2105 then write to the actual field object. Instead, the object type of the
2106 field object was inadvertently changed to match the type of the source
2107 operand. The new behavior will actually write to the field object (buffer
2108 field or field unit), thus matching the correct ACPI-defined behavior.
2110 Implemented support to allow the host to redefine individual OSL
2111 prototypes. This change enables the host to redefine OSL prototypes found
2112 in the acpiosxf.h file. This allows the host to implement OSL interfaces
2113 with a macro or inlined function. Further, it allows the host to add any
2115 necessary on a per-interface basis. Enables maximum flexibility for the
2118 Hardcoded the access width for the FADT-defined reset register. The ACPI
2119 specification requires the reset register width to be 8 bits. ACPICA now
2120 hardcodes the width to 8 and ignores the FADT width value. This provides
2126 Changed the position/use of the ACPI_PRINTF_LIKE macro. This macro is
2128 in the OSL header (acpiosxf). The change modifies the position of this
2130 build issues if the OSL defines the implementation of the interface to be
2133 Deployed a new macro ACPI_EXPORT_SYMBOL_INIT for the main ACPICA
2134 initialization interfaces. This change adds a new macro for the main init
2140 Cleaned up the memory allocation macros for configurability. In the
2142 case, the ACPI_ALLOCATE and related macros now resolve directly to their
2145 default, unless overridden by the USE_NATIVE_ALLOCATE_ZEROED define.
2146 2) For AcpiExec (and for debugging), the macros can optionally be
2148 to the local ACPICA interfaces that track each allocation (local tracking
2152 Simplified the configuration for ACPI_REDUCED_HARDWARE. Allows the kernel
2153 to predefine this macro to either TRUE or FALSE during the system build.
2155 Replaced __FUNCTION_ with __func__ in the gcc-specific header.
2157 Example Code and Data Size: These are the sizes for the OS-independent
2158 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2159 debug version of the code includes the debug output trace mechanism and
2172 iASL: Implemented wildcard support for the -e option. This simplifies use
2181 portability issues. Instead it uses the POSIX termio interface to put the
2182 terminal in raw input mode so that the various special keys can be
2185 editing). Uses the existing debugger history mechanism. ACPICA BZ 1036.
2189 versions of the AcpiDump utility. ACPICA BZ 1044.
2194 shorter than the length of an ACPI table header remain in error (an error
2197 Debugger: Echo actual command along with the "unknown command" message.
2205 handlers. Certain ACPI functionality requires the host to handle raw
2206 SCIs. For example, the "SCI Doorbell" that is defined for memory power
2207 state support requires the host device driver to handle SCIs to examine
2208 if the doorbell has been activated. Multiple SCI handlers can be
2210 AcpiInstallSciHandler, AcpiRemoveSciHandler; see the ACPICA reference for
2213 Operation region support: Never locally free the handler "context"
2215 the handler context pointer in some (rare) circumstances. The owner of
2216 the handler owns this pointer and the ACPICA code should never touch it.
2218 problem (fault) under AcpiExec. Also, set the internal storage field for
2219 the context pointer to zero when the region is deactivated, simply for
2222 AcpiRead: On error, do not modify the return value target location. If an
2223 error happens in the middle of a split 32/32 64-bit I/O operation, do not
2224 modify the target of the return value pointer. Makes the code consistent
2225 with the rest of ACPICA. Bjorn Helgaas.
2227 Example Code and Data Size: These are the sizes for the OS-independent
2228 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2229 debug version of the code includes the debug output trace mechanism and
2243 1) Added support to dump the RSDP, RSDT, and XSDT tables.
2252 allows the import of a file that specifies the external methods along
2253 with the required number of arguments for each -- allowing for the
2254 correct disassembly of the table. This is a workaround for a limitation
2255 of AML code where the disassembler often cannot determine the number of
2257 ASL code. See the iASL reference for details. ACPICA BZ 1030.
2259 Debugger: Implemented a new command (paths) that displays the full
2260 pathnames (namepaths) and object types of all objects in the namespace.
2261 This is an alternative to the namespace command.
2263 Debugger: Implemented a new command (sci) that invokes the SCI dispatch
2270 Application OSLs: Set the return value for the PCI read functions. These
2271 functions simply return AE_OK, but should set the return value to zero
2274 Debugger: Prevent possible command line buffer overflow. Increase the
2275 size of a couple of the debugger line buffers, and ensure that overflow
2278 iASL: Changed to abort immediately on serious errors during the parsing
2279 phase. Due to the nature of ASL, there is no point in attempting to
2281 cascade of hundreds of errors which obscure the original problem.
2288 Fixed a problem with the DerefOf operator where references to FieldUnits
2289 and BufferFields incorrectly returned the parent object, not the actual
2290 value of the object. After this change, a dereference of a FieldUnit
2291 reference results in a read operation on the field to get the value, and
2292 likewise, the appropriate BufferField value is extracted from the target
2295 Fixed a problem where the _WAK method could cause a fault under these
2296 circumstances: 1) Interpreter slack mode was not enabled, and 2) the _WAK
2300 For the DerefOf operator, a fatal error now results if an attempt is made
2301 to dereference a reference (created by the Index operator) to a NULL
2303 and this behavior will be added to a future version of the ACPI
2306 The ACPI Power Management Timer (defined in the FADT) is now optional.
2308 appear in the next version of the ACPI specification. If there is no PM
2309 Timer on the platform, AcpiGetTimer returns AE_SUPPORT. An address of
2310 zero in the FADT indicates no PM timer.
2313 allows the host to globally enable/disable all vendor strings, all
2317 Expose the collected _OSI data to the host via a global variable. This
2318 data tracks the highest level vendor ID that has been invoked by the BIOS
2319 so that the host (and potentially ACPICA itself) can change behaviors
2320 based upon the age of the BIOS.
2322 Example Code and Data Size: These are the sizes for the OS-independent
2323 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2324 debug version of the code includes the debug output trace mechanism and
2337 iASL: Created the following enhancements for the -so option (create
2339 1)Add offsets for the last nameseg in each namepath for every supported
2342 3)Add the actual AML opcode for the parent object of every supported
2344 4)Add support for the ZERO/ONE/ONES AML opcodes for integer objects
2348 resolved, and thus, the disassembler had to make a guess at the number of
2351 iASL: The argument to the -T option (create table template) is now
2352 optional. If not specified, the default table is a DSDT, typically the
2360 Fixed an issue with runtime repair of the _CST object. Null or invalid
2363 Removed an arbitrary restriction of 256 GPEs per GPE block (such as the
2365 the maximum number of GPEs is 1016. Use of multiple GPE block devices
2366 makes the system-wide number of GPEs essentially unlimited.
2368 Example Code and Data Size: These are the sizes for the OS-independent
2369 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2370 debug version of the code includes the debug output trace mechanism and
2383 Portable AcpiDump: Implemented full support for the Linux and FreeBSD
2386 Disassembler: Added some missing types for the HEST and EINJ tables: "Set
2393 max. The original purpose of this constraint was to limit the amount of
2394 debug output. However, the string function in question (UtPrintString) is
2395 now used for the disassembler also, where 256 bytes is insufficient.
2405 the actual signatures for these tables are "FACP" and "APIC",
2422 Fixed a possible problem with the new extended sleep registers in the
2424 5.0 FADT. Do not use these registers (even if populated) unless the HW-
2425 reduced bit is set in the FADT (as per the ACPI specification). ACPICA BZ
2429 the
2432 Implemented a debug-only option to disable loading of SSDTs from the
2437 Fixed some issues in the ACPICA initialization and termination code:
2446 Standardized all switch() blocks across the entire source base. After
2449 the formatting of every switch block identical. ACPICA BZ 997. Chao Guan.
2462 Example Code and Data Size: These are the sizes for the OS-independent
2463 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2464 debug version of the code includes the debug output trace mechanism and
2477 New utility: Implemented an easily portable version of the acpidump
2478 utility to extract ACPI tables from the system (or a file) in an ASCII
2480 dump format. The top-level code implements the various command line
2483 functionality is OS-dependent. See the tools/acpidump/apmain.c module and
2484 the ACPICA reference for porting instructions. ACPICA BZ 859. Notes:
2485 1) The Windows version obtains the ACPI tables from the Registry.
2491 restructuring/change to the initialization sequence caused this option to
2499 validation for return values from the predefined names is a bit too
2500 strict, it does not allow names references within the package (which will
2505 Debugger: Fixed the 80-character command line limitation for the History
2508 iASL: Added control method and package support for the -so option
2512 a thread blocks within the method for any reason, and another thread
2513 enters the method, the method will fail because an attempt will be made
2515 create the same (named) object twice. In this case, issue a remark that
2516 the method should be marked serialized. NOTE: may become a warning later.
2525 read operations. This overrun can only happen if the DSDT version is 1 --
2526 meaning that all AML integers are 32 bits -- and the field length is
2527 between 33 and 55 bits long. During the read, an internal buffer object
2529 created for the field unit because the field is larger than an integer
2531 bits). However, in this case, the buffer will be incorrectly written
2532 beyond the end because the buffer length is less than the internal
2537 Updated the Embedded Controller "orphan" _REG method support. This refers
2538 to _REG methods under the EC device that have no corresponding operation
2539 region. This is allowed by the ACPI specification. This update removes a
2540 dependency on the existence an ECDT table. It will execute an orphan _REG
2541 method as long as the operation region handler for the EC is installed at
2542 the EC device node and not the namespace root. Rui Zhang (original
2549 passing correct object types as well as the correct number of arguments
2550 (therefore identifying any issues immediately). Also, the ASL/namespace
2551 definition of the predefined name is checked against the ACPI
2552 specification for the proper argument count. Adds one new file,
2555 Changed an exception code for the ASL UnLoad() operator. Changed the
2556 exception code for the case where the input DdbHandle is invalid, from
2557 AE_BAD_PARAMETER to the more appropriate AE_AML_OPERAND_TYPE.
2559 Unix/Linux makefiles: Removed the use of the -O2 optimization flag in the
2565 2) Fixed a possible memory leak in the _OSI support
2566 3) Removed an unused variable in the predefined name support
2569 Example Code and Data Size: These are the sizes for the OS-independent
2570 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2571 debug version of the code includes the debug output trace mechanism and
2584 AcpiExec: Added installation of a handler for the SystemCMOS address
2589 operation region handler(s) at the actual EC device instead of the
2590 namespace root. This reflects the typical behavior of host operating
2594 installed before the _REG methods are executed. This prevents a _REG
2598 Debugger: Enhanced the "handlers" command to display non-root handlers.
2599 This change enhances the handlers command to display handlers associated
2600 with individual devices throughout the namespace, in addition to the
2601 currently supported display of handlers associated with the root
2606 resolved, reducing the total error count during execution. Chao Guan.
2613 Fixed several possible race conditions with the internal object reference
2614 counting mechanism. Some of the external ACPICA interfaces update object
2615 reference counts without holding the interpreter or namespace lock. This
2616 change adds a spinlock to protect reference count updates on the internal
2621 sets. This change removes a size mismatch warning if the legacy length
2622 field for a GPE register set is larger than the 64-bit GAS structure can
2623 accommodate. GPE register sets can be larger than the 255-bit width
2624 limitation of the GAS structure. Linn Crosetto (linn@hp.com).
2628 ACPI_WAIT_FOREVER is modified by the host to be a value less than
2633 the master predefined info table. This change adds the infrastructure to
2635 methods/objects. It does not actually contain the code that will fully
2637 some duplicate code for the predefined names into a new module,
2640 Example Code and Data Size: These are the sizes for the OS-independent
2641 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2642 debug version of the code includes the debug output trace mechanism and
2655 iASL: Implemented a new option to simplify the development of ACPI-
2658 option will create a C table containing the AML table offsets of various
2659 named objects in the namespace so that BIOS code can modify them easily
2666 Now, all predefined names that are defined by the ACPI specification to
2668 zero length top-level package. This allows the BIOS to tell the host that
2669 the requested feature is not supported, and supports existing BIOS/ASL
2672 iASL: Changed the "result not used" warning to an error. This is the case
2673 where an ASL operator is effectively a NOOP because the result of the
2676 There is no target (missing 3rd argument), nor is the function return
2677 value used. This is potentially a very serious problem -- since the code
2678 was probably intended to do something, but for whatever reason, the value
2682 AcpiHelp: Added allowable/required argument types to the predefined names
2683 info display. This feature utilizes the recent update to the predefined
2691 Fixed a possible regression on some hosts: Reinstated the safe return
2692 macros (return_ACPI_STATUS, etc.) that ensure that the argument is
2693 evaluated only once. Although these macros are not needed for the ACPICA
2696 the safe feature may be necessary.
2698 Fixed several issues related to the ACPI 5.0 reduced hardware support
2699 (SOC): Now ensure that if the platform declares itself as hardware-
2701 via the FADT, the following functions become NOOPs (and always return
2710 the related device drivers that invoke these methods:
2711 1) For the _STR and _MLS names, automatically repair/convert an ASCII
2713 2) For the _CRS, _PRS, and _DMA names, return a resource descriptor with
2715 lone end tag descriptor in the following cases: A Return(0) was executed,
2724 resource templates (the length field is used to index through the
2725 template). This change also hardens the external AcpiWalkResources and
2728 Local Cache Manager: Enhanced the main data structure to eliminate an
2729 unnecessary mechanism to access the next object in the list. Actually
2730 provides a small performance enhancement for hosts that use the local
2733 Example Code and Data Size: These are the sizes for the OS-independent
2734 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2735 debug version of the code includes the debug output trace mechanism and
2748 iASL/Disassembler: Fixed several issues with the definition of the ACPI
2750 that were made to the ACPI 5.0 specification.
2752 iASL/Disassembler: Added full support for the following new ACPI tables:
2760 returned by the various predefined names defined to return packages. Both
2764 the runtime repair mechanism within the AML interpreter and uses the
2770 invokes the disassembler automatically. Eliminates the need to
2771 specifically invoke the disassembler with the -d option. ACPICA BZ 862.
2773 iASL/Disassembler: Added several warnings for the case where there are
2774 unresolved control methods during the disassembly. This can potentially
2775 cause errors when the output file is compiled, because the disassembler
2776 assumes zero method arguments in these cases (it cannot determine the
2777 actual number of arguments without resolution/definition of the method).
2780 Invocation of the resources command with no arguments will now display
2782 resources within the current namespace.
2785 via the -e option.
2792 Updated the AcpiGetSleepTypeData interface: Allow the \_Sx methods to
2793 return either 1 or 2 integers. Although the ACPI spec defines the \_Sx
2796 two integers and the previous code reflects that. However, we also need
2798 support BIOS code that actually implements to the ACPI spec, and this
2801 Fixed two issues with the ACPI_DEBUG_PRINT macros:
2802 1) Added the ACPI_DO_WHILE macro to the main DEBUG_PRINT helper macro for
2804 2) Renamed the internal ACPI_DEBUG macro to ACPI_DO_DEBUG_PRINT since
2805 ACPI_DEBUG is already used by many of the various hosts.
2807 Updated all ACPICA copyrights and signons to 2013. Added the 2013
2808 copyright to all module headers and signons, including the standard Linux
2809 header. This affects virtually every file in the ACPICA core subsystem,
2810 iASL compiler, all ACPICA utilities, and the test suites.
2812 Example Code and Data Size: These are the sizes for the OS-independent
2813 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2814 debug version of the code includes the debug output trace mechanism and
2828 prevent a possible fault on some hosts. Some C libraries modify the arg
2829 pointer parameter to vfprintf making it difficult to call it twice in the
2831 does not affect the Windows OSL since the Win C library does not modify
2832 the arg pointer. Chao Guan, Bob Moore.
2834 iASL: Fixed a possible infinite loop when the maximum error count is
2835 reached. If an output file other than the .AML file is specified (such as
2836 a listing file), and the maximum number of errors is reached, do not
2837 attempt to flush data to the output file(s) as the compiler is aborting.
2838 This can cause an infinite loop as the max error count code essentially
2843 Implemented for both the compiler and the disassembler. Often, the NOOP
2845 the
2847 errors. This option causes the disassembler to ignore all NOOP opcodes
2848 (0xA3), and it also causes the compiler to ignore all ASL source code
2852 Debugger: Enhanced the Sleep command to execute all sleep states. This
2853 change allows Sleep to be invoked with no arguments and causes the
2854 debugger to execute all of the sleep states, 0-5, automatically.
2862 alternate entry point for AcpiWalkResources and improves the usability of
2863 the resource manager by accepting as input a buffer containing the output
2864 of either a _CRS, _PRS, or _AEI method. The key functionality is that the
2866 the host later. See the ACPICA reference for details.
2872 Resource Manager: Add support for the new ACPI 5.0 wake bit in the IRQ,
2874 both get and set the new wake bit in these descriptors, separately from
2875 the existing share bit. Reported by Aaron Lu.
2878 example, in the cases such as a store of a string to an existing package
2879 object, implement the store as a CopyObject(). This is a small departure
2880 from the ACPI specification which states that the control method should
2882 aborted in this case. However, the ASLTS suite depends on this behavior.
2884 Performance improvement for the various FUNCTION_TRACE and DEBUG_PRINT
2893 Changed an exception code for LoadTable operator. For the case where one
2894 of the input strings is too long, change the returned exception code from
2898 the mutex object created during method mutex creation. Reported by
2901 Example Code and Data Size: These are the sizes for the OS-independent
2902 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2903 debug version of the code includes the debug output trace mechanism and
2916 iASL: Disallow a method call as argument to the ObjectType ASL operator.
2917 This change tracks an errata to the ACPI 5.0 document. The AML grammar
2918 will not allow the interpreter to differentiate between a method and a
2919 method invocation when these are used as an argument to the ObjectType
2922 (UserTerm) for the ObjectType operator.
2924 Finish support for the TPM2 and CSRT tables in the headers, table
2927 Unix user-space OSL: Fix a problem with WaitSemaphore where the timeout
2928 always expires immediately if the semaphore is not available. The
2930 code was using a relative-time timeout, but sem_timedwait requires the
2934 iASL: Added a remark if the Timer() operator is used within a 32-bit
2950 change greatly increases the performance of Package objects within the
2951 interpreter. It changes the processing of reference counts for packages
2953 optimizing for the most common case where the package sub-objects are
2954 either Integers, Strings, or Buffers. Increases the overall performance
2956 the ASLTS test suite by 1.5X (Increases the Slack Mode performance by
2961 descriptors. Improves readability and maintainability of the code. Fixes
2963 problem with the UART serial bus descriptor for the number of data bits
2966 Enhanced the ACPI_GETx and ACPI_SETx macros. Improved the implementation
2967 of the macros and changed the SETx macros to the style of (destination,
2970 Example Code and Data Size: These are the sizes for the OS-independent
2971 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
2972 debug version of the code includes the debug output trace mechanism and
2985 Disassembler: Added the new ACPI 5.0 interrupt sharing flags. This change
2986 adds the ShareAndWake and ExclusiveAndWake flags which were added to the
2991 declaration if the original reference to the object includes leading
2994 Debugger: Completed a major update for the Disassemble<method> command.
2996 methods that had any reasonable complexity. This fix brings the command
2998 to the same level as the rest of the disassembler. Adds one new file,
2999 dmdeferred.c, which is existing code that is now common with the main
3000 disassembler and the debugger disassemble command. ACPICA MZ 978.
3002 iASL: Moved the parser entry prototype to avoid a duplicate declaration.
3003 Newer versions of Bison emit this prototype, so moved the prototype out
3005 the iASL header to where it is actually used in order to avoid a
3009 iASL/Tools: Standardized use of the stream I/O functions:
3014 Improves reliability and maintainability of the code. Bob Moore, Lv
3023 Remove all leading '\' characters from pathnames during the external
3028 open/read/write/close with the stream I/O equivalents
3032 AcpiBin: Fix for the dump-to-hex function. Now correctly output the table
3033 name header so that AcpiXtract recognizes the output file/table.
3035 iASL: Remove obsolete -2 option flag. Originally intended to force the
3037 and the entire concept is now obsolete.
3045 Updated support for the ACPI 5.0 MPST table. Fixes some problems
3046 introduced by late changes to the table as it was added to the ACPI 5.0
3048 support as well as a new version of the MPST template.
3050 AcpiGetObjectInfo: Enhanced the device object support to include the ACPI
3051 5.0 _SUB method. Now calls _SUB in addition to the other PNP-related ID
3056 name collisions on hosts that reserve the *_DEVICE_ID (or *DeviceId)
3057 names for their various drivers. Affects the AcpiGetObjectInfo external
3061 This macro resolves to a simple 32-bit move of the 4-character ACPI_NAME
3066 error in the output buffer calculation. Feng Tang. ACPICA BZ 849.
3073 Audited/updated all ACPICA return macros and the function debug depth
3074 counter: 1) Ensure that all functions that use the various TRACE macros
3075 also use the appropriate ACPICA return macros. 2) Ensure that all normal
3076 return statements surround the return expression (value) with parens to
3077 ensure consistency across the ACPICA code base. Guan Chao, Tang Feng,
3080 Global source code changes/maintenance: All extra lines at the start and
3083 space, again for consistency across the code base.
3085 Example Code and Data Size: These are the sizes for the OS-independent
3086 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3087 debug version of the code includes the debug output trace mechanism and
3100 AcpiExec: Improved the algorithm used for memory leak/corruption
3101 detection. Added some intelligence to the code that maintains the global
3104 the ASLTS test suite, speed improvements of 3X to 5X are seen, depending
3105 on the platform and/or the environment. Note, this performance
3106 enhancement affects the AcpiExec utility only, not the kernel-resident
3110 the disassembler, dump the 48 bytes surrounding the invalid opcode. Fix
3111 incorrect table offset reported for invalid opcodes. Report the original
3112 32-bit value for bad ACPI_NAMEs (as well as the repaired name.)
3114 Disassembler: Enhanced the -vt option to emit the binary table data in
3117 Fixed a potential filename buffer overflow in osunixdir.c. Increased the
3126 ACPI 5.0: Added two new notify types for the Hardware Error Notification
3127 Structure within the Hardware Error Source Table (HEST) table -- CMCI(5)
3131 Table Manager: Merged/removed duplicate code in the root table resize
3132 functions. One function is external, the other is internal. Lv Zheng,
3136 Makefiles: Completely removed the obsolete "Linux" makefiles under
3140 the generic unix makefiles under acpica/generate/unix.
3144 to ensure that the final binary output files are always copied up to the
3147 Example Code and Data Size: These are the sizes for the OS-independent
3148 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3150 version of the code includes the debug output trace mechanism and has a
3164 Disassembler: Fixed a possible fault during the disassembly of resource
3165 descriptors when a second parse is required because of the invocation of
3166 external control methods within the table. With assistance from
3169 iASL: Fixed a namepath optimization problem. An error can occur if the
3171 node that contains the namepath to be optimized does not have a parent
3173 that is a named object. This change fixes the problem.
3175 iASL: Fixed a regression where the AML file is not deleted on errors. The
3177 output file should be deleted if there are any errors during the
3180 only exception is if the -f (force output) option is used. ACPICA BZ 974.
3184 Via realloc(), automatically increase the internal line buffer sizes as
3186 the
3189 This change increases the line buffer(s) if the input lines go beyond the
3192 line was longer than the buffer.
3201 full help for the command. For help command itself, allow an argument to
3204 Test Suites: Several bug fixes for the ASLTS suite reduces the number of
3205 errors during execution of the suite. Guan Chao.
3213 Removed all use of the deprecated _GTS and _BFS predefined methods. The
3216 deprecated and will probably be removed from the ACPI specification.
3218 does not invoke them, and reportedly never will. The final nail in the
3220 is that the ACPI specification states that these methods must be run with
3223 Linux has removed all use of the methods also. It was discovered that
3231 Implemented support for complex bit-packed buffers returned from the _PLD
3233 interface, AcpiDecodePldBuffer that parses the buffer into a more usable
3236 structure since the memory layout of individual bitfields is not defined
3238 the C language. In addition, there are endian concerns where a compiler
3240 change the bitfield ordering based on the machine type. The new ACPICA
3249 Added the Windows8/Server2012 string for the _OSI method. This change
3255 Added header support for the new ACPI tables DBG2 (Debug Port Table Type
3259 Added struct header support for the _FDE, _GRT, _GTM, and _SRT predefined
3260 names. This simplifies access to the buffers returned by these predefined
3263 GPE support: Removed an extraneous parameter from the various low-level
3266 Removed the linux makefiles from the unix packages. The generate/linux
3267 makefiles are obsolete and have been removed from the unix tarball
3271 top-level makefile under the main acpica directory. ACPICA BZ 967, 912.
3282 Example Code and Data Size: These are the sizes for the OS-independent
3283 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3284 debug version of the code includes the debug output trace mechanism and
3300 expressions that allow the use of type 3/4/5 opcodes to generate
3304 in the generation of invalid AML bytecode. ACPICA BZ 970.
3307 apparently automatically emit some of the necessary externals. This
3311 Disassembler: Added support to decode the DBG2 and CSRT ACPI tables.
3315 within comments in the output file.
3317 Debugger: Fixed a regression with the "Threads" command where
3325 Fixed a possible fault in the return package object repair code. Fixes a
3328 package object in order to force conformance to the ACPI specification.
3334 Removed code to disable/enable bus master arbitration (ARB_DIS bit in the
3335 PM2_CNT register) in the ACPICA sleep/wake interfaces. Management of the
3336 ARB_DIS bit must be implemented in the host-dependent C3 processor power
3342 This change removes the code to disable/enable bus master arbitration
3344 suspend/resume. Use of the ARB_DIS bit in the optional PM2_CNT register
3352 table load and unload. They are intended to simplify the host
3355 AcpiLoadTable: Load an SSDT from a buffer into the namespace.
3356 AcpiUnloadParentTable: Unload an SSDT via a named object owned by the
3358 See the ACPICA reference for additional details. Adds one new file,
3366 Deployed these new interfaces in the ACPICA Table Manager code for ACPI
3369 the
3371 ACPI_BIOS_WARNING. See the ACPICA reference for additional details.
3377 critical region. This fix moves a memory allocation outside of the time
3386 Example Code and Data Size: These are the sizes for the OS-independent
3387 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3389 version of the code includes the debug output trace mechanism and has a
3407 Debugger: Enhanced the "tables" command to emit additional information
3409 the current set of ACPI tables, including the owner ID and flags decode.
3411 Debugger: Reimplemented the "unload" command to use the new
3426 Implemented support to expand the "implicit notify" feature to allow
3430 runtime device notification in the absence of a BIOS-provided GPE control
3431 method (_Lxx/_Exx) or a host-installed handler for the GPE. Implicit
3436 code errors. See the description of the AcpiSetupGpeForWake interface in
3437 the
3441 correctness of the Linux code translation. No functional changes.
3443 Example Code and Data Size: These are the sizes for the OS-independent
3444 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3446 version of the code includes the debug output trace mechanism and has a
3460 Disassembler: Added support to emit short, commented descriptions for the
3462 predefined names in order to improve the readability of the disassembled
3467 2) Emit generic descriptions for the special names (_Exx, _Qxx, etc.)
3468 3) Emit descriptions for the resource descriptor names (_MIN, _LEN,
3489 iASL: Added the existing debug options to the standard help screen. There
3493 AcpiHelp: Fixed some typos in the various predefined name descriptions.
3495 expand some of the descriptions where appropriate.
3497 iASL: Fixed the -ot option (display compile times/statistics). Was not
3499 properly for standard output; only worked for the debug file case.
3512 removed/uninstalled. It also may be useful for the host OS within related
3513 drivers such as the Embedded Controller driver. See the ACPICA reference
3519 the conversion of FADT 32-bit legacy register addresses to internal
3524 thus limiting the register length to 255 bits. ACPICA BZ 953.
3526 Example Code and Data Size: These are the sizes for the OS-independent
3527 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3529 version of the code includes the debug output trace mechanism and has a
3543 iASL: Added the ACPI 5.0 "PCC" keyword for use in the Register() ASL
3545 This keyword was added late in the ACPI 5.0 release cycle and was not
3551 the
3554 Disassembler: Several additional fixes for the External() statement
3556 related to some ASL operators. Also, order the External() statements
3557 alphabetically in the disassembler output. Fixes the External()
3560 the Create* field, Alias, and Scope operators:
3566 iASL: Improved pathname support. For include files, merge the prefix
3568 with the file pathname and eliminate unnecessary components. Convert
3573 iASL/DTC/Preprocessor: Gracefully handle early EOF. Handle an EOF at the
3575 of a valid line by inserting a newline and then returning the EOF during
3576 the
3577 next call to GetNextLine. Prevents the line from being ignored due to EOF
3580 iASL: Implemented some changes to enhance the IDE support (-vi option.)
3582 and Warning messages are now correctly recognized for both the source
3584 browser and the global error and warning counts.
3597 Processor objects. This can simplify the host OS notification
3599 Also re-worked and restructured the entire notify support code to
3605 changes to the existing handler install/remove interfaces. Lin Ming, Bob
3608 Fixed a regression in the package repair code where the object reference
3609 count was calculated incorrectly. Regression was introduced in the commit
3612 Fixed a couple possible memory leaks in the AML parser, in the error
3616 Example Code and Data Size: These are the sizes for the OS-independent
3617 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3618 debug version of the code includes the debug output trace mechanism and
3632 iASL: Fixed a problem with the resource descriptor support where the
3634 of the StartDependentFn and StartDependentFnNoPrio descriptors were not
3641 iASL and Preprocessor: Implemented full support for the #line directive
3643 correctly track original source file line numbers through the .i
3647 iASL: Expand the allowable byte constants for address space IDs.
3649 the allowable range was 0x80-0xFF (user-defined spaces), now the range is
3650 0x0A-0xFF to allow for custom and new IDs without changing the compiler.
3654 iASL: Add option to completely disable the preprocessor (-Pn).
3657 default (instead of the previous stdout).
3673 Enhanced the sleep/wake interfaces to optionally execute the _GTS method
3674 (Going To Sleep) and the _BFS method (Back From Sleep). Windows
3677 untested. It has been seen on some systems where the execution of these
3678 methods causes errors and also prevents the machine from entering S5. It
3682 by default. In the future, perhaps these methods can be optionally
3684 based on the age of the system and/or what is the newest version of
3686 that the BIOS asks for via _OSI. Changed interfaces: AcpiEnterSleepState
3688 AcpileaveSleepStatePrep. See the ACPICA reference and Linux BZ 13041. Lin
3691 Fixed a problem where the length of the local/common FADT was set too
3693 The local FADT table length cannot be set to the common length until the
3694 original length has been examined. There is code that checks the table
3699 the
3702 Fixed a mapping issue related to a physical table override. Use the
3704 mapping mechanism for tables loaded via the physical override OSL
3706 This allows for early mapping before the virtual memory manager is
3710 Enhanced the automatic return-object repair code: Repair a common problem
3716 simply returns the single object instead of a Package with one sub-
3720 the original object, creating the correct and expected Package with one
3727 Changed the exception code returned for invalid ACPI paths passed as
3729 AE_BAD_PARAMETER, now is the more sensible AE_BAD_PATHNAME.
3731 Example Code and Data Size: These are the sizes for the OS-independent
3732 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3734 version of the code includes the debug output trace mechanism and has a
3748 iASL: Added the infrastructure and initial implementation of a integrated
3752 the need for a separate preprocessing step during builds. On Windows, it
3754 eliminates the need to install a separate C compiler. ACPICA BZ 761. Some
3775 Table Compiler: Fixed a problem where the equals operator within an
3779 Updated iASL to use the current versions of Bison/Flex. Updated the
3781 project file to invoke these tools from the standard location. ACPICA BZ
3793 There have been some major changes to the sleep/wake support code, as
3798 AcpiLeaveSleepStatePrep. This allows the host to perform actions between
3799 the
3800 time the _BFS method is called and the _WAK method is called. NOTE: all
3806 b) In AcpiLeaveSleepState, now enable all runtime GPEs before calling the
3808 method. Some machines require that the GPEs are enabled before the _WAK
3812 c) In AcpiLeaveSleepState, now always clear the WAK_STS (wake status)
3816 determine whether the system is rebooting or resuming. Matthew Garrett.
3818 d) Move the invocations of _GTS (Going To Sleep) and _BFS (Back From
3820 match the ACPI specification requirement. Rafael Wysocki.
3822 e) Implemented full support for the ACPI 5.0 SleepStatus and SleepControl
3823 registers within the V5 FADT. This support adds two new files:
3824 hardware/hwesleep.c implements the support for the new registers. Moved
3830 AcpiOsPhysicalTableOverride. This interface allows the host to override a
3831 table via a physical address, instead of the logical address required by
3832 AcpiOsTableOverride. This simplifies the host implementation. Initial
3838 Expanded the OSL memory read/write interfaces to 64-bit data
3843 Implemented the ACPI_REDUCED_HARDWARE option to allow the creation of a
3845 build of ACPICA that supports only the ACPI 5.0 reduced hardware (SoC)
3847 See the ACPICA reference for details. ACPICA BZ 942. This option removes
3849 10% of the code and 5% of the static data, and the following hardware
3860 Updated the unix tarball directory structure to match the ACPICA git
3862 tree. This ensures that the generic unix makefiles work properly (in
3863 generate/unix). Also updated the Linux makefiles to match. ACPICA BZ
3866 Updated the return value of the _REV predefined method to integer value 5
3870 Moved the external ACPI PM timer interface prototypes to the public
3874 Example Code and Data Size: These are the sizes for the OS-independent
3875 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3877 version of the code includes the debug output trace mechanism and has a
3891 Disassembler: Fixed a problem with the new ACPI 5.0 serial resource
3892 descriptors (I2C, SPI, UART) where the resource produce/consumer bit was
3895 AcpiHelp: Add display of ACPI/PNP device IDs that are defined in the ACPI
3910 allows drivers to check an address range against the ACPI namespace. See
3911 the
3915 Fixed several issues with the ACPI 5.0 FADT support: Add the sleep
3918 Status registers, update the ACPI 5.0 flags, and update internal data
3919 structures to handle an FADT larger than 256 bytes. The size of the ACPI
3923 Updated all ACPICA copyrights and signons to 2012. Added the 2012
3925 all module headers and signons, including the standard Linux header. This
3926 affects virtually every file in the ACPICA core subsystem, iASL compiler,
3930 Example Code and Data Size: These are the sizes for the OS-independent
3931 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
3933 version of the code includes the debug output trace mechanism and has a
3947 Disassembler: fixed a problem with the automatic resource tag generation
3948 support. Fixes a problem where the resource tags are inadvertently not
3949 constructed if the table being disassembled contains external references
3951 control methods. Moved the actual construction of the tags to after the
3957 Table Compiler: Make all "generic" operators caseless. These are the
3968 This release contains full support for the ACPI 5.0 specification, as
3974 This support allows for ACPI systems without the usual ACPI hardware.
3976 support is enabled by a flag in the revision 5 FADT. If it is set, ACPICA
3978 not attempt to initialize or use any of the usual ACPI hardware. Note,
3980 this flag is set, all of the following ACPI hardware is assumed to be not
3994 All new tables and updates to existing tables are fully supported in the
3995 ACPICA headers (for use by device drivers), the disassembler, and the
4011 All new operation regions are fully supported by the iASL compiler, the
4012 disassembler, and the ACPICA runtime code (for dispatch to region
4022 All new ASL resource descriptors are fully supported by the iASL
4024 the
4025 ASL/AML disassembler, and the ACPICA runtime Resource Manager code
4039 One new operator is added, the Connection operator, which is used to
4045 with the AccessAs operator. All are fully supported by the iASL compiler,
4060 All new predefined objects/control-methods are supported by the iASL
4062 and the ACPICA runtime validation/repair (arguments and return values.)
4064 predefined names include the following:
4084 AcpiAcquireMutex and AcpiReleaseMutex: These interfaces allow the host OS
4086 acquire and release AML mutexes that are defined in the DSDT/SSDT tables
4087 provided by the BIOS. They are intended to be used in conjunction with
4088 the
4090 mutual exclusion with the AML code/interpreter.
4092 AcpiGetEventResources: Returns the (formatted) resource descriptors as
4094 by the ACPI 5.0 _AEI object (ACPI Event Information). This object
4098 to the AcpiGetCurrentResources interface.
4101 operation regions, information about the Connection() object and any
4103 length information is passed to the region handler within the Context
4108 resource template or resource descriptor to the ACPI_RESOURCE internal
4112 to convert the Connection() buffer object into a ACPI_RESOURCE.
4118 Support for ACPI 5.0 features in the AcpiExec and AcpiHelp utilities.
4119 Support for ACPI 5.0 features in the ASLTS test suite.
4126 the
4127 iASL compiler in 2010. (See the iASL compiler User Guide.)
4138 the region name and an argument that evaluates to an object (such as the
4144 will be caught later if the offending method is executed. ACPICA BZ 925.
4146 Fixed an issue with the FFixedHW space ID where the ID was not always
4149 Fixed a problem with the 32-bit generation of the unix-specific OSL
4152 Several changes made to enable generation with the GCC 4.6 compiler.
4162 iASL: Implemented the __PATH__ operator, which returns the full pathname
4164 the current source file.
4172 Added a new master script to generate and execute the ASLTS test suite.
4175 iASL: Fix problem with listing generation during processing of the
4177 operator where AML listing was disabled until the entire Switch block was
4181 character" message for some cases when the semicolon is used. Semicolons
4188 Disassembler: Fix problem with disassembly of the DataTableRegion
4195 These are the sizes for the OS-independent acpica.lib produced by the
4196 Microsoft Visual C++ 9.0 32-bit compiler. The debug version of the code
4197 includes the debug output trace mechanism and has a much larger code and
4215 be released at the same time that ACPI 5.0 is officially released.
4217 The ACPI 5.0 specification is on track for release in the next few
4222 Fixed a problem where the maximum sleep time for the Sleep() operator was
4229 generation of ACPICA core code and utilities. Also simplified the
4231 considerably through the use of the vpath variable to specify search
4237 iASL: Implemented support to check the access length for all fields
4247 Disassembler: Fixed a byte ordering problem with the output of 24-bit and
4254 VAR_PACKAGE when these are used as a package length. 2) Allow the
4260 iASL: Emit statistics for all output files (instead of just the ASL input
4264 iASL: Added -G option to the table compiler to allow the compilation of
4266 ACPI tables. The only part of a table that is required is the standard
4271 AcpiXtract: Ported to the standard ACPICA environment (with ACPICA
4283 AcpiHelp: Added the AccessAs and Offset operators. Fixed a problem where
4285 missing table terminator could cause a fault when using the -p option.
4292 These are the sizes for the OS-independent acpica.lib produced by the
4293 Microsoft Visual C++ 9.0 32-bit compiler. The debug version of the code
4294 includes the debug output trace mechanism and has a much larger code and
4311 Updated the predefined name repair mechanism to not attempt repair of a
4313 return object if a _PSS object is present. We can only sort the _TSS
4315 package if there is no _PSS within the same scope. This is because if
4318 present, the ACPI specification dictates that the _TSS Power Dissipation
4320 is to be ignored, and therefore some BIOSs leave garbage values in the
4322 Power field(s). In this case, it is best to just return the _TSS package
4326 Added an option to globally disable the control method return value
4344 Linux-specific header: update handling of THREAD_ID and pthread. For the
4347 the
4350 Example Code and Data Size: These are the sizes for the OS-independent
4351 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
4353 version of the code includes the debug output trace mechanism and has a
4366 With this release, a new utility named "acpihelp" has been added to the
4368 package. This utility summarizes the ACPI specification chapters for the
4371 provides the following functionality:
4375 of arguments, and the return value data type.
4383 the multi-thread support so that threading libraries will not be linked
4390 Bison appear to want the interface to yyerror to be a const char * (or at
4397 versions of the tools.
4404 ASL Load() operator: Reinstate most restrictions on the incoming ACPI
4407 1) Originally, we checked the table signature for "SSDT" or "PSDT".
4412 gave up on validating the signature, (05/2008).
4413 4) We encountered non-AML tables such as the MADT, which caused
4417 Added the missing _TDL predefined name to the global name list in order
4419 enable validation. Affects both the core ACPICA code and the iASL
4422 Example Code and Data Size: These are the sizes for the OS-independent
4423 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
4425 version of the code includes the debug output trace mechanism and has a
4439 the
4443 Increased the default command line buffer size to accommodate these
4445 See the ACPICA reference for details and syntax. ACPICA BZ 917.
4448 the
4449 Execute/Debug command. Now, the debugger will always invoke a control
4451 with the required number of arguments -- even if the command line
4456 supported instead of the required seven.
4460 also return status in order to prevent buffer overruns. See the ACPICA
4464 makefiles to simplify support for the two different but similar parser
4467 Updated the generic unix makefile for gcc 4. The default gcc version is
4476 Implemented support to execute a so-called "orphan" _REG method under the
4478 device. This change will force the execution of a _REG method underneath
4479 the
4488 the
4511 Example Code and Data Size: These are the sizes for the OS-independent
4513 produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug
4515 the code includes the debug output trace mechanism and has a much larger
4533 multiple lines using the continuation char (\). Large buffers now use
4535 continuation character(s) and no colon on the continuation lines. See the
4537 update in the iASL compiler reference. ACPI BZ 910,911. Lin Ming, Bob
4540 iASL: Mark ASL "Return()" and the simple "Return" as "Null" return
4542 Since the parser stuffs a "zero" as the return value for these statements
4545 the underlying AML grammar), they were seen as "return with value" by the
4554 region declaration in the same scope. If not, the _REG method is not very
4571 start with a parentheses or a less-than symbol. Now, only the standard /*
4574 comments are supported, as well as the bracket [] comments.
4578 headers in the acpidump file. Update the header validation to support
4580 tables. Problem introduced in previous AcpiXtract version in the change
4592 abort the compiler on "fatal" errors, simply should abort the current
4602 Fixed a problem caused by a _PRW method appearing at the namespace root
4604 during the setup of wake GPEs. A fault could occur if a _PRW directly
4606 the
4607 root object was passed to the AcpiSetupGpeForWake interface. Lin Ming.
4611 global lock interrupt can occur without the pending flag being set. Upon
4614 interrupt, we now ensure that a thread is actually waiting for the lock
4618 Example Code and Data Size: These are the sizes for the OS-independent
4620 produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug
4622 the code includes the debug output trace mechanism and has a much larger
4636 Implemented full support for the "SLIC" ACPI table. Includes support in
4637 the
4647 "Wrong checksum", etc., into the dump file. This was causing problems for
4650 iASL: Fix the Linux makefile by removing an inadvertent double file
4656 for a user-defined address space. This is used by the ASL test suite
4669 AcpiInitializeObjects. Override handlers for the "default" regions should
4671 installed early, however. This change executes all _REG methods for the
4678 read the register since this information is available internally. This
4683 Removed all use of the highly unreliable FADT revision field. The
4685 number in the FADT has been found to be completely unreliable and cannot
4687 trusted. Only the actual table length can be used to infer the version.
4689 change updates the ACPICA core and the disassembler so that both no
4691 even look at the FADT version and instead depend solely upon the FADT
4694 Fix an unresolved name issue for the no-debug and no-error-message source
4707 Example Code and Data Size: These are the sizes for the OS-independent
4708 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
4709 debug version of the code includes the debug output trace mechanism and
4722 iASL: Implemented the predefined macros __LINE__, __FILE__, and __DATE__.
4723 These are useful C-style macros with the standard definitions. ACPICA
4730 "generic" portions of tables such as UEFI. See the iASL reference manual.
4732 Debugger: Added a command to display the status of global handlers. The
4747 there are two GPE methods of the form _Lxy and _Exy in the same scope.
4749 example, _L1D and _E1D in the same scope.) ACPICA bugzilla 848.
4756 iASL/DTC: Reduced the severity of some errors from fatal to error. There
4760 Debugger: Simplified the output of the help command. All help output now
4772 20100528 as a result of a performance optimization that reduces the
4775 namespace walks upon method exit by using the delete_namespace_subtree
4776 function instead of the delete_namespace_by_owner function used
4778 Bug is a missing namespace lock in the delete_namespace_subtree function.
4781 Fixed several issues and a possible fault with the automatic "serialized"
4783 the
4784 fly if the method generates an AE_ALREADY_EXISTS error, indicating the
4787 issues seen in the field, especially on machines with many cores:
4789 1) Delete method children only upon the exit of the last thread,
4792 2) Set the "serialized" bit for the method only upon the exit of the
4795 3) Cleanup the use of the AML "MethodFlags" and internal method flags
4796 so that there is no longer any confusion between the two.
4800 Debugger: Now lock the namespace for duration of a namespace dump.
4802 issues if the namespace is changing dynamically underneath the debugger.
4803 Especially affects temporary namespace nodes, since the debugger displays
4806 Updated the ordering of include files. The ACPICA headers should appear
4809 any necessary compiler-specific defines, etc. Affects the ACPI-related
4813 Updated all ACPICA copyrights and signons to 2011. Added the 2011
4815 to all module headers and signons, including the Linux header. This
4817 virtually every file in the ACPICA core subsystem, iASL compiler, and all
4826 Example Code and Data Size: These are the sizes for the OS-independent
4827 acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The
4828 debug version of the code includes the debug output trace mechanism and
4841 iASL: Added generic data types to the Data Table compiler. Add "generic"
4843 types such as UINT32, String, Unicode, etc., to simplify the generation
4847 iASL: Added listing support for the Data Table Compiler. Adds listing
4856 Completed the major overhaul of the GPE support code that was begun in
4870 See the ACPICA Programmer Reference for full details and programming
4871 information. See the new section 4.4 "General Purpose Event (GPE)
4879 Implemented a new GPE feature for Windows compatibility, the "Implicit
4886 Fixed a problem with the Scope() operator during table parse and load
4888 During load phase (table load or method execution), the scope operator
4890 not enter the target into the namespace. Instead, it should open a new
4892 at the target location. Linux BZ 19462, ACPICA BZ 882.
4894 Example Code and Data Size: These are the sizes for the OS-independent
4895 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
4896 debug version of the code includes the debug output trace mechanism and
4909 iASL: Relax the alphanumeric restriction on _CID strings. These strings
4911 "bus-specific" per the ACPI specification, and therefore any characters
4918 condition on the source file emitted a very confusing error message. The
4921 Disassembler: Decode the AccessSize within a Generic Address Structure
4924 access, the size is encoded as 1=byte, 2=word, 3=dword, and 4=qword.
4934 AML Debugger: Increased the debugger buffer size for method return
4938 execution, including the buffer overflow case.
4945 Added support to clear the PCIEXP_WAKE event. When clearing ACPI events,
4947 clear the PCIEXP_WAKE_STS bit in the ACPI PM1 Status Register, via
4950 Changed the type of the predefined namespace object _TZ from ThermalZone
4952 Device. This was found to be confusing to the host software that
4954 the various thermal zones, since _TZ is not really a ThermalZone.
4960 Added Windows Vista SP2 to the list of supported _OSI strings. The actual
4963 Eliminated duplicate code in AcpiUtExecute* functions. Now that the
4969 Example Code and Data Size: These are the sizes for the OS-independent
4970 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
4971 debug version of the code includes the debug output trace mechanism and
4986 non-hex prefix (such as "PNP" or "ACPI") must be uppercase, and the
4989 the string must be exactly seven or eight characters. For both _HID and
4994 descriptors that are mostly or all zeros, with the expectation that they
4998 tag" (name) associated with the descriptor, which gives the ASL a handle
4999 needed to modify the descriptor. ACPICA BZ 873.
5001 Added single-thread support to the generic Unix application OSL.
5003 for iASL support, this change removes the use of semaphores in the
5006 _MULTI_THREADED option was replaced by the (reverse) ACPI_SINGLE_THREADED
5009 AcpiExec: several fixes for the 64-bit version. Adds XSDT support and
5011 for 64-bit DSDT/FACS addresses in the FADT. Lin Ming.
5020 Removed the AcpiOsDerivePciId OSL interface. The various host
5024 AcpiHwDerivePciId, which is now part of the ACPICA core code.
5029 problems are now repaired at runtime: 1) Remove a leading asterisk in the
5030 string, and 2) the entire string is uppercased. Both repairs are in
5031 accordance with the ACPI specification and will simplify host driver
5036 always UINT64. This simplifies the ACPICA code, especially any printf
5038 UINT64 is the only common data type for all thread_id types across all
5039 operating systems. It is now up to the host OSL to cast the native
5041 type to UINT64 before returning the value to ACPICA (via
5045 Added the ACPI_INLINE type to enhance the ACPICA configuration. The
5051 Made the system global AcpiGbl_SystemAwakeAndRunning publically
5057 All code that implements error/warning messages with the "ACPI:" prefix
5061 The UINT64_OVERLAY was moved to utmath.c, which is the only module where
5065 Example Code and Data Size: These are the sizes for the OS-independent
5066 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5067 debug version of the code includes the debug output trace mechanism and
5080 iASL/Disassembler: Write ACPI errors to stderr instead of the output
5082 This keeps the output files free of random error messages that may
5084 from within the namespace/interpreter code. Used this opportunity to
5098 Designed and implemented a new host interface to the _OSI support code.
5100 will allow the host to dynamically add or remove multiple _OSI strings,
5104 Also added a new AML debugger command, 'osi' to display and modify the
5106 _OSI string table, and test support in the AcpiExec utility. See the
5118 Re-introduced the support to enable multi-byte transfers for Embedded
5121 in the host OS, not in the multi-byte support. Previously, the maximum
5123 size passed to the EC operation region handler was a single byte. There
5127 useful for the EC driver to lock these as a single transaction. This
5129 enables single transfers larger than 8 bits. This effectively changes the
5130 access to the EC space from ByteAcc to AnyAcc, and will probably require
5131 changes to the host OS Embedded Controller driver to enable 16/32/64/256-
5135 Fixed a problem with the prototype for AcpiOsReadPciConfiguration. The
5136 prototype in acpiosxf.h had the output value pointer as a (void *).
5139 Fixed a couple problems with the recently modified Linux makefiles for
5141 and AcpiExec. These new makefiles place the generated object files in the
5142 local directory so that there can be no collisions between the files that
5146 Example Code and Data Size: These are the sizes for the OS-independent
5147 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5148 debug version of the code includes the debug output trace mechanism and
5162 the
5164 loading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn)
5170 uses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ
5179 Implemented several updates to the recently added GPE reference count
5180 support. The model for "wake" GPEs is changing to give the host OS
5182 control of these GPEs. Eventually, the ACPICA core will not execute any
5184 methods, since the host already must execute them. Also, additional
5186 were made to help ensure that the reference counts are kept in proper
5190 2) Ensure that GPE enable masks stay in sync with the reference count.
5192 4) Remove the internal wake reference counter and add new AcpiGpeWakeup
5198 Changed the behavior of the GPE install/remove handler interfaces. The
5213 reference to an Alias within the definition of a Package was not always
5216 were resolved to the actual object instead of a reference to the object
5222 Example Code and Data Size: These are the sizes for the OS-independent
5223 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5224 debug version of the code includes the debug output trace mechanism and
5238 compilation of the non-AML ACPI tables such as FADT, MADT, SRAT, etc.
5240 are called "ACPI Data Tables", and the new compiler is the "Data Table
5241 Compiler". This compiler is intended to simplify the existing error-prone
5242 process of creating these tables for the BIOS, as well as allowing the
5245 tables. See the iASL User Guide for detailed information.
5247 iASL: Implemented a new Template Generator option in support of the new
5250 that can be used as the basis for table development. See the iASL
5251 documentation and the -T option.
5253 Disassembler and headers: Added support for the WDDT ACPI table (Watchdog
5256 Updated the Linux makefiles for iASL and AcpiExec to place the generated
5257 object files in the local directory so that there can be no collisions
5258 between the shared files between them that are generated with different
5261 Added support for Mac OS X in the Unix OSL used for iASL and AcpiExec.
5263 the #define __APPLE__ to enable this support.
5273 Undefined ACPI tables: We are looking for the definitions for the
5275 ACPI tables that have been seen in the field: ATKG, IEIT, GSCI.
5279 (EC) operation regions. Previously, the maximum data size passed to the
5283 than one byte that need to be transferred, and it is useful for the EC
5287 larger than 8 bits. This effectively changes the access to the EC space
5289 ByteAcc to AnyAcc, and will probably require changes to the host OS
5297 change enhances the performance of namespace searches and walks by adding
5299 backpointer to the parent in each namespace node. On large namespaces,
5303 each namespace node increases the overall size of the internal namespace
5306 node and an ACPI operand object. However, this is the first growth of the
5309 Implemented a performance optimization that reduces the number of
5311 walks. On control method exit, only walk the namespace if the method is
5314 the
5322 Some ASL code has been seen in the field that inadvertently has bits set
5323 above bit 15. This feature is optional and is enabled if the BIOS
5325 any Windows OSI strings. It can also be enabled by the host OS. Matthew
5328 Added support to limit the maximum time for the ASL Sleep() operator. To
5329 prevent accidental deep sleeps, limit the maximum time that Sleep() will
5330 actually sleep. Configurable, the default maximum is two seconds. ACPICA
5333 Added run-time validation support for the _WDG and_WED Microsoft
5337 part of the ACPI spec. ACPICA BZ 860.
5347 Fixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly
5351 Example Code and Data Size: These are the sizes for the OS-independent
5352 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5353 debug version of the code includes the debug output trace mechanism and
5366 iASL: Added compiler support for the _WDG and_WED Microsoft predefined
5369 part of the ACPI spec. ACPICA BZ 860.
5371 AcpiExec: added option to disable the memory tracking mechanism. The -dt
5372 option will disable the tracking mechanism, which improves performance
5375 AcpiExec: Restructured the command line options into -d (disable) and -e
5385 the
5386 new table, and process any _Lxx/_Exx GPE methods in the new table. Any
5387 runtime GPE that is referenced by an _Lxx/_Exx method in the new table is
5388 immediately enabled. Handles the FADT-defined GPEs as well as GPE Block
5393 Fixed a regression introduced in version 20100331 within the table
5395 where initial table loading could fail. This was introduced in the fix
5397 AcpiReallocateRootTable. Also, renamed some of fields in the table
5402 AcpiUtCopySimpleObject. The original code did not correctly handle the
5404 where the object to be copied was a namespace node. Lin Ming. ACPICA BZ
5407 Updated the allocation dump routine, AcpiUtDumpAllocation and fixed a
5412 Example Code and Data Size: These are the sizes for the OS-independent
5413 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5414 debug version of the code includes the debug output trace mechanism and
5428 descriptors. This change implements validation for the address fields
5431 implemented: Checks for valid Min/Max, length within the Min/Max window,
5434 table 6-40 in the ACPI 4.0a specification. Also split the large
5438 iASL: Added support for the _Wxx predefined names. This support was
5440 and these names were not recognized by the compiler as valid predefined
5447 the _Lxx, _Exx, _Wxx, and _Qxx names, as well as some other miscellaneous
5450 iASL: Implemented the -ts option to emit hex AML data in ASL format, as
5454 dynamically loaded via the Load() operator. Also cleaned up output for
5455 the
5460 Demonstrates the advanced error checking ability of the iASL compiler.
5468 Completed a major update for the GPE support in order to improve support
5475 removed. One new external interface was added. Most of the GPE external
5476 interfaces now use the GPE spinlock instead of the events mutex (and the
5477 Flags parameter for many GPE interfaces has been removed.) See the
5492 defined via the DataTableRegion() operator. Previously, only read support
5498 Implemented a new subsystem option to force a copy of the DSDT to local
5499 memory. Optionally copy the entire DSDT to local memory (instead of
5503 the original DSDT, creating the need for this option. Default is FALSE,
5505 not copy the DSDT.
5510 the OS (by firmware). This is typically catastrophic for the system, but
5512 been seen on some machines. Once this problem has been detected, the DSDT
5515 Fixed two problems with AcpiReallocateRootTable during the root table
5517 When copying the root table to the new allocation, the length used was
5518 incorrect. The new size was used instead of the current table size,
5520 too much data was copied. Also, the count of available slots for ACPI
5524 Example Code and Data Size: These are the sizes for the OS-independent
5525 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5526 debug version of the code includes the debug output trace mechanism and
5547 using the keywords "Zero", "One", or "Ones". Lin Ming.
5549 iASL: Added Windows 7 support for the -g option (get local ACPI tables)
5551 reducing the requested registry access rights. ACPICA BZ 842.
5564 Fixed a possible problem with the AML Mutex handling function
5565 AcpiExReleaseMutex where the function could fault under the very rare
5566 condition when the interpreter has blocked, the interpreter lock is
5568 the interpreter is then reentered via the same thread, and attempts to
5573 Implemented additional configuration support for the AML "Debug Object".
5574 Output from the debug object can now be enabled via a global variable,
5577 This debug output is now available in the release version of ACPICA
5579 of just the debug version. Also, the entire debug output module can now
5581 configured out of the ACPICA build if desired. One new file added,
5584 Added header support for the ACPI MCHI table (Management Controller Host
5585 Interface Table). This table was added in ACPI 4.0, but the defining
5595 invocations.) These invocations were converted from the original
5598 Example Code and Data Size: These are the sizes for the OS-independent
5599 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5600 debug version of the code includes the debug output trace mechanism and
5614 predefined named objects that are declared with the Name() operator. For
5615 example, the type of this object is now validated to be of type Integer:
5616 Name(_BBN, 1). This change migrates the compiler to using the core
5621 Disassembler: Added support for the ACPI 4.0 MCHI table.
5628 Added the 2010 copyright to all module headers and signons. This affects
5629 virtually every file in the ACPICA core subsystem, the iASL compiler, the
5630 tools/utilities, and the test suites.
5632 Implemented a change to the AcpiGetDevices interface to eliminate
5634 invocations of the _STA method. In the case where a specific _HID is
5649 Removed the obsolete ACPI_INTEGER data type. This type was introduced as
5650 the
5654 the
5660 Removed the unused UINT32_STRUCT type, and the obsolete Integer64 field
5662 the parse tree object.
5664 Added additional warning options for the gcc-4 generation. Updated the
5672 Example Code and Data Size: These are the sizes for the OS-independent
5673 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5674 debug version of the code includes the debug output trace mechanism and
5696 change expands the automatic repairs/conversions for predefined name
5715 Implemented a repair for the predefined _FDE and _GTM names. The expected
5718 possible problems (both seen in the field), where a package of integers
5725 execute module-level code that is not at the root of the namespace (under
5727 Device object, etc.). Now executes the code within the current scope
5729 of the root. ACPICA BZ 762. Lin Ming.
5735 the same scope as a method-defined operation region or an operation
5737 under a module-level IF block. This type of code is rare, so the problem
5743 could be leaked for each block of executed module-level code if the
5746 object from the module-level code block. Lin Ming.
5752 the return object cannot be repaired. Existing messages for successful
5756 Example Code and Data Size: These are the sizes for the OS-independent
5757 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5758 debug version of the code includes the debug output trace mechanism and
5773 were no longer automatically removed at the termination of the compile.
5775 acpiexec: Implemented the -f option to specify default region fill value.
5776 This option specifies the value used to initialize buffers that simulate
5790 ACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference.
5792 Modified the behavior of the operation region memory mapping cache for
5793 SystemMemory. Ensure that the memory mappings created for operation
5796 regions can cause kernel warnings on some hosts if the pages have
5798 attributes. Such regions are probably BIOS bugs, and this is the
5805 _PSS, and _TSS. Drivers can now assume that the packages are correctly
5819 will execute module-level code that is not at the root of the namespace
5828 Reduced the severity of predefined repair messages, Warning to Info.
5830 the object was successfully repaired, a warning is too severe. Reduced to
5836 Example Code and Data Size: These are the sizes for the OS-independent
5837 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5838 debug version of the code includes the debug output trace mechanism and
5853 change correctly implements the Switch operator with a surrounding
5855 so that the Break operator works as expected. ACPICA BZ 461. Lin Ming.
5861 exists, but is shorter than the declared length of the package. Although
5862 technically legal, this is probably a coding error and it is seen in the
5865 iASL: Fixed a problem where the compiler could fault after the maximum
5869 acpixtract: Fixed a possible warning for pointer cast if the compiler
5880 than once. If a custom address space handler is installed by the host
5882 the "initialize operation regions" phase of the ACPICA initialization,
5885 fixes the problem. ACPICA BZ 427. Lin Ming.
5887 Fixed a possible memory leak for the Scope() ASL operator. When the exact
5891 Implemented a run-time repair for the _MAT predefined method. If the _MAT
5892 return value is defined as a Field object in the AML, and the field
5893 size is less than or equal to the default width of an integer (32 or
5898 Implemented a run-time repair for the _BIF and _BIX predefined methods.
5901 value zero if the field is not supported by the platform. This is due to
5903 ambiguity in the ACPI specification. The field should always be a string.
5905 within the returned Package. ACPICA BZ 807.
5907 Example Code and Data Size: These are the sizes for the OS-independent
5908 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5909 debug version of the code includes the debug output trace mechanism and
5927 Disassembler: Restructured the code so that all functions that handle
5931 AML Debugger: Added a max count argument for the Batch command (which
5932 executes multiple predefined methods within the namespace.)
5934 iASL: Updated the compiler documentation (User Reference.) Available at
5945 For Windows Vista compatibility, added the automatic execution of an _INI
5946 method located at the namespace root (\_INI). This method is executed at
5947 table load time. This support is in addition to the automatic execution
5951 Fixed a possible memory leak in the interpreter for AML package objects
5953 the package initializer list is longer than the defined size of the
5955 This apparently can only happen if the BIOS changes the package size on
5956 the
5958 interpreter will truncate the package to the defined size (and issue an
5960 message), but previously could leave the extra objects undeleted if they
5962 pre-created during the argument processing (such is the case if the
5964 consists of a number of sub-packages as in the _PSS.) ACPICA BZ 805.
5967 This has been reported in the field. Previously, ACPICA would zero out
5968 the
5969 buffer/string. Now, the operation is treated as a noop. Provides Windows
5972 Removed an extraneous error message for ASL constructs of the form
5980 Package object. _DSM can return any type of object, so validation on the
5983 Example Code and Data Size: These are the sizes for the OS-independent
5984 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
5985 debug version of the code includes the debug output trace mechanism and
5998 iASL: Fixed a problem with the use of the Alias operator and Resource
6002 iASL: Implemented the -I option to specify additional search directories
6005 Directories are searched in the order specified on the command line
6007 the local directory is searched.) ACPICA BZ 800.
6009 iASL: Fixed a problem where the full pathname for include files was not
6010 emitted for warnings/errors. This caused the IDE support to not work
6013 iASL: Implemented the -@ option to specify a Windows-style response file
6019 DSDT and multiple SSDTs). Also added support for wildcards within the AML
6041 have been some ACPI 4.0 changes to other existing tables. Split the large
6042 actbl1.h header into the existing actbl2.h header. ACPICA BZ 774.
6057 code are now detected and executed as intended. Currently, the code
6059 must exist under either an If, Else, or While construct; these are the
6060 typical cases seen in the field. ACPICA BZ 762. Lin Ming.
6065 return a variable-length Package of sub-packages. If the number of sub-
6068 package with no sub-packages. This code attempts to fix the problem by
6069 wrapping a new package object around the existing package. These methods
6075 Fixed a regression introduced in 20090625 for the AcpiGetDevices
6081 Fixed a problem with AcpiReset where the reset would silently fail if the
6082 register was one of the protected I/O ports. AcpiReset now bypasses the
6084 validation mechanism. This may eventually be driven into the
6088 Fixed a regression related to the recent update of the AcpiRead/Write
6089 interfaces. A sleep/suspend could fail if the optional PM2 Control
6091 does not exist during an attempt to write the Bus Master Arbitration bit.
6092 (However, some hosts already delete the code that writes this bit, and
6093 the
6100 Example Code and Data Size: These are the sizes for the OS-independent
6101 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6102 debug version of the code includes the debug output trace mechanism and
6123 continue for the next few releases.
6127 ACPI 4.0: Implemented interpreter support for the IPMI operation region
6136 support in both the header files and the disassembler.
6138 Completed a major update for the AcpiGetObjectInfo external interface.
6141 - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA,
6143 - Call the _SxW power methods on behalf of a device object.
6145 - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO.
6148 the updated ACPICA Programmer Reference for details. One new source file
6152 Updated the AcpiRead and AcpiWrite external interfaces to support 64-bit
6158 all callers of these interfaces. See the ACPICA Programmer Reference for
6163 the host node was deleted. The data sub-object was not automatically
6165 when the host node was deleted. The interface to the handler had an
6169 Enhanced the function that dumps ACPI table headers. All non-printable
6170 characters in the string fields are now replaced with '?' (Signature,
6173 these fields are occasionally seen in the field. ACPICA BZ 788.
6175 Fixed a problem with predefined method repair code where the code that
6178 the first time the predefined method is called. The mechanism that
6180 warnings on subsequent calls was interfering with the repair mechanism.
6183 Fixed a possible memory leak in the predefined validation/repair code
6188 Removed obsolete 16-bit files from the distribution and from the current
6192 Example Code and Data Size: These are the sizes for the OS-independent
6193 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6194 debug version of the code includes the debug output trace mechanism and
6207 ACPI 4.0: iASL and Disassembler - implemented support for the new IPMI
6218 Disabled the preservation of the SCI enable bit in the PM1 control
6220 The SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification
6225 because the bit needs to be explicitly set by the OS as a workaround. No
6226 machines fail if the bit is not preserved. Therefore, ACPICA no longer
6239 the entire ACPI table. See the ACPICA Programmer Reference for use and
6242 Fixed several reference count issues with the DdbHandle object that is
6244 the
6245 object. Also, mark the object as invalid once the table has been
6247 This is needed because the handle itself may not be deleted after the
6249 unload, depending on whether it has been stored in a named object by the
6253 mutexes of the same sync level are acquired but then not released in
6255 opposite order, the internally maintained Current Sync Level becomes
6259 Changed the allowable release order for ASL mutex objects. The ACPI 4.0
6260 specification has been changed to make the SyncLevel for mutex objects
6262 useful. When releasing a mutex, the SyncLevel of the mutex must now be
6263 the
6264 same as the current sync level. This makes more sense than the previous
6266 (SyncLevel less than or equal). This change updates the code to match the
6269 Fixed a problem with the local version of the AcpiOsPurgeCache function.
6274 Updated the Load operator to use operation region interfaces. This
6278 through the installed region handler as they should.
6280 Simplified and optimized the NsGetNextNode function. Reduced parameter
6284 Example Code and Data Size: These are the sizes for the OS-independent
6285 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6286 debug version of the code includes the debug output trace mechanism and
6310 Fixed a compatibility issue with the recently released I/O port
6313 simply ignore the request and do not return an exception (allow the
6315 method to continue execution.) 2) If only part of the request overlaps a
6316 protected port, read/write the individual ports that are not protected.
6320 Enhanced the execution of the ASL/AML BreakPoint operator so that it
6322 breaks into the AML debugger if the debugger is present. This matches the
6325 Fixed several possible warnings related to the use of the configurable
6328 statements for the 64-bit build when the type is configured as a pointer.
6340 Example Code and Data Size: These are the sizes for the OS-independent
6341 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6342 debug version of the code includes the debug output trace mechanism and
6358 the 64-bit build.
6360 iASL: Fixed a problem where the Unix/Linux versions of the compiler could
6364 iASL: Added a new option for "quiet mode" (-va) that produces only the
6375 Added new makefiles for the generation of acpica in a generic unix-like
6376 environment. These makefiles are intended to generate the acpica tools
6378 utilities from the original acpica git source tree structure.
6380 Test Suites: Updated and cleaned up the documentation files. Updated the
6381 copyrights to 2009, affecting all source files. Use the new version of
6383 with quiet mode. Increased the number of available semaphores in the
6385 OSL, allowing the aslts to execute fully on Windows. For the Unix OSL,
6387 an alternate implementation of the semaphore timeout to allow aslts to
6401 exclusive write access to the namespace. This fixes a problem where a
6403 unload could (possibly catastrophically) delete the portion of the
6407 implements the reader/writer lock mechanism. ACPICA BZ 749.
6409 Fixed a regression introduced in version 20090220 where a change to the
6411 handling could cause the ACPICA subsystem to access non-existent I/O
6414 Modified the handling of FADT register and table (FACS/DSDT) addresses.
6417 Previously, the 64-bit versions were favored, meaning that if both 32 and
6419 versions were valid, but not equal, the 64-bit version was used. This was
6420 found to cause some machines to fail. Now, in this case, the 32-bit
6422 is used instead. This now matches the Windows behavior.
6426 compatibility and protects the standard PC I/O ports from access via AML
6429 Fixed a possible extraneous warning message from the FADT support. The
6430 message warns of a 32/64 length mismatch between the legacy and GAS
6433 Removed the obsolete AcpiOsValidateAddress OSL interface. This interface
6435 made obsolete by the port protection mechanism above. It was previously
6437 to validate the entire address range of an operation region, which could
6439 incorrect if the range included illegal ports, but fields within the
6441 performed on a per-field basis instead of the entire region.
6443 Modified the handling of the PM1 Status Register ignored bit (bit 11.)
6444 Ignored bits must be "preserved" according to the ACPI spec. Usually,
6446 means a read/modify/write when writing to the register. However, for
6448 registers, writing a one means clear the event. Writing a zero means
6450 the event (do not clear.) This behavior is clarified in the ACPI 4.0
6452 and the ACPICA code now simply always writes a zero to the ignored bit.
6454 Modified the handling of ignored bits for the PM1 A/B Control Registers.
6456 per the ACPI specification, for the control registers, preserve
6460 Updated the handling of write-only bits in the PM1 A/B Control Registers.
6461 When reading the register, zero the write-only bits as per the ACPI spec.
6464 Removed "Linux" from the list of supported _OSI strings. Linux no longer
6465 wants to reply true to this request. The Windows strings are the only
6467 through the AML that are tested and known to work properly.
6478 Acpiexec: Split the large aeexec.c file into two new files, aehandlers.c
6487 Optimized the ACPI register locking. Removed locking for reads from the
6491 not required when reading the single-bit registers. The
6497 Fixed the parameter validation for AcpiRead/Write. Now return
6498 AE_BAD_PARAMETER if the input register pointer is null, and
6501 the register has an address of zero. Previously, these cases simply
6503 AE_OK. For optional registers such as PM1B status/enable/control, the
6507 Renamed the external ACPI bit register access functions. Renamed
6508 AcpiGetRegister and AcpiSetRegister to clarify the purpose of these
6511 Also, restructured the code for these functions by simplifying the code
6515 Added new functions to transparently handle the possibly split PM1 A/B
6518 now handle the split registers for PM1 Status, Enable, and Control.
6523 Added a function to handle the PM1 control registers,
6525 This function writes both of the PM1 control registers (A/B). These
6527 are different than the PM1 A/B status and enable registers in that
6529 values can be written to the A/B registers. Most notably, the SLP_TYP
6531 can be different, as per the values returned from the _Sx predefined
6537 the
6542 Split out the PM1 Status registers from the FADT. Added new globals for
6544 registers (A/B), similar to the way the PM1 Enable registers are handled.
6545 Instead of overloading the FADT Event Register blocks. This makes the
6549 Fixed the warning message for when the platform contains too many ACPI
6551 for the default size of the global root table data structure. The
6553 for the truncation value was incorrect.
6555 Removed the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this
6558 were about 150 invocations of the macro across 41 files. ACPICA BZ 755.
6560 Removed the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as
6564 Conditionally compile the AcpiSetFirmwareWakingVector64 function. This
6568 Debug output: print the input and result for invocations of the _OSI
6570 control method via the ACPI_LV_INFO debug level. Also, reduced some of
6571 the
6574 Example Code and Data Size: These are the sizes for the OS-independent
6575 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6576 debug version of the code includes the debug output trace mechanism and
6589 Disassembler: Decode the FADT PM_Profile field. Emit ascii names for the
6597 Added the 2009 copyright to all module headers and signons. This affects
6598 virtually every file in the ACPICA core subsystem, the iASL compiler, and
6599 the tools/utilities.
6601 Implemented a change to allow the host to override any ACPI table,
6603 dynamically loaded tables. Previously, only the DSDT could be replaced by
6604 the
6605 host. With this change, the AcpiOsTableOverride interface is called for
6607 table found in the RSDT/XSDT during ACPICA initialization, and also
6609 a table is dynamically loaded via the AML Load operator.
6611 Updated FADT flag definitions, especially the Boot Architecture flags.
6613 Debugger: For the Find command, automatically pad the input ACPI name
6615 underscores if the name is shorter than 4 characters. This enables a
6617 with the actual namespace entry which is itself padded with underscores.
6619 Example Code and Data Size: These are the sizes for the OS-independent
6620 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6621 debug version of the code includes the debug output trace mechanism and
6636 Dissasembler: Enhanced FADT support. Added decoding of the Boot
6638 flags. Now decode all flags, regardless of the FADT version. Flag output
6639 includes the FADT version which first defined each flag.
6641 The iASL -g option now dumps the RSDT to a file (in addition to the FADT
6652 this release. This includes updates to the external interfaces, OSL
6653 interfaces, the overview sections, and the debugger reference.
6655 Several new ACPICA interfaces have been implemented and documented in the
6657 AcpiReset - Writes the reset value to the FADT-defined reset register.
6660 AcpiGetGpeDevice - Get the GPE block device associated with a GPE.
6661 AcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs.
6665 Most of the public ACPI hardware-related interfaces have been moved to a
6669 Enhanced the FADT parsing and low-level ACPI register access: The ACPI
6670 register lengths within the FADT are now used, and the low level ACPI
6671 register access no longer hardcodes the ACPI register lengths. Given that
6672 there may be some risk in actually trusting the FADT register lengths, a
6674 time option was added to fall back to the default hardcoded lengths if
6675 the
6679 register length is overridden with the default value.
6686 Added semaphore support to the Linux/Unix application OS-services layer
6689 Added the ACPI_MUTEX_TYPE configuration option to select whether mutexes
6691 be implemented in the OSL, or will binary semaphores be used instead.
6693 Example Code and Data Size: These are the sizes for the OS-independent
6694 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6695 debug version of the code includes the debug output trace mechanism and
6708 iASL: Completed the '-e' option to include additional ACPI tables in
6715 iASL: Removed the "named object in while loop" error. The compiler cannot
6730 Restructured the ACPICA header files into public/private. acpi.h now
6732 only the "public" acpica headers. All other acpica headers are "private"
6736 include the commonly used private headers for acpica code generation.
6747 operation region, because it used to be difficult to convert the data
6749 buffer to string from within the ASL. Ensures that the host OS is
6753 Updated the FACS waking vector interfaces. Split
6755 into two: one for the 32-bit vector, another for the 64-bit vector. This
6757 required because the host OS must setup the wake much differently for
6759 vector (real vs. protected mode, etc.) and the interface itself should
6762 deciding which vector to use. Also, eliminated the
6764 interface, as it served no purpose (only the firmware reads the vector,
6766 only writes the vector.) ACPICA BZ 731.
6770 counter to force exit from AML While loops if the count becomes too
6772 This can occur in poorly written AML when the hardware does not respond
6773 within a while loop and the loop does not implement a timeout. The
6779 Optimized the execution of AML While loops. Previously, a control state
6780 object was allocated and freed for each execution of the loop. The
6781 optimization is to simply reuse the control state for each iteration.
6783 speeds up the raw loop execution time by about 5%.
6785 Enhanced the implicit return mechanism. For Windows compatibility, return
6789 Such methods are seen in the field as stubs (presumably), and can cause
6795 is seen in the field) because of the use of a double-backslash in strings
6796 (since backslash is the escape character) causing confusion. ACPICA BZ
6800 Emit a warning if two different FACS or DSDT tables are discovered in the
6801 FADT. Checks if there are two valid but different addresses for the FACS
6803 DSDT within the FADT (mismatch between the 32-bit and 64-bit fields.)
6805 Consolidated the method argument count validation code. Merged the code
6807 validates control method argument counts into the predefined validation
6817 the global pointer instead of using AcpiGetTableByIndex for each FACS
6819 This simplifies the code for the Global Lock and the Firmware Waking
6822 Example Code and Data Size: These are the sizes for the OS-independent
6823 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6824 debug version of the code includes the debug output trace mechanism and
6837 iASL: Improved disassembly of external method calls. Added the -e option
6839 allow the inclusion of additional ACPI tables to help with the
6842 method invocations and the generation of external declarations during the
6844 properly without the actual declaration of the method. Use the -e option
6846 include the table where the external method(s) are actually declared.
6848 useful for disassembling SSDTs that make method calls back to the master
6854 problem where the use of an alias within a namepath would result in a not
6855 found error or cause the compiler to fault. Also now allows forward
6856 references from the Alias operator itself. ACPICA BZ 738.
6865 objects. This code validates the predefined ACPI objects (objects whose
6867 start with underscore) that appear in the namespace, at the time they are
6868 evaluated. The argument count and the type of the returned object are
6869 validated against the ACPI specification. The purpose of this validation
6871 to detect problems with the BIOS-implemented predefined ACPI objects
6873 the results are returned to the ACPI-related drivers. Future enhancements
6878 Fixed a fault in the AML parser if a memory allocation fails during the
6883 the
6884 implicit return mechanism to be more compatible with the MS interpreter.
6892 during the ToDecimalString and ToHexString operators, as well as implicit
6895 Fixed two possible memory leaks in the error exit paths of
6902 Removed the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the
6907 Removed the obsolete version number in module headers. Removed the
6914 Example Code and Data Size: These are the sizes for the OS-independent
6915 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6916 debug version of the code includes the debug output trace mechanism and
6932 Completed a major cleanup of the internal ACPI_OPERAND_OBJECT of type
6933 Reference. Changes include the elimination of cheating on the Object
6935 for the DdbHandle subtype, addition of a reference class field to
6936 differentiate the various reference types (instead of an AML opcode), and
6937 the
6942 control method via the external ACPICA interface. Now issue a warning
6944 and continue. Handles the case where the method inadvertently declares
6946 many arguments, but does not actually use the extra ones. Applies mainly
6948 the predefined methods. Lin Ming. Linux BZ 11032.
6950 Disallow the evaluation of named object types with no intrinsic value.
6958 during the evaluation. Now, the error is generated up front.
6960 Fixed a possible memory leak in the AcpiNsGetExternalPathname function
6961 (nsnames.c). Fixes a leak in the error exit path.
6963 Removed the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These
6965 levels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and
6967 interfaces. Also added ACPI_DB_EVENTS to correspond with the existing
6970 Removed obsolete and/or unused exception codes from the acexcep.h header.
6971 There is the possibility that certain device drivers may be affected if
6975 The ACPICA documentation has been added to the public git source tree,
6977 acpica/documents. Included are the ACPICA programmer reference, the iASL
6978 compiler reference, and the changes.txt release logfile.
6980 Example Code and Data Size: These are the sizes for the OS-independent
6981 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
6982 debug version of the code includes the debug output trace mechanism and
6995 Allow multiple argument counts for the predefined _SCP method. ACPI 3.0
7002 errors where a full 16-bit table type field was not extracted from the
7019 Fix a possible deadlock in the GPE dispatch. Remove call to
7022 to acquire the GPE lock but can deadlock since the GPE lock is already
7028 Add a function to dereference returned reference objects. Examines the
7039 subtables for the MADT and one new subtable for the SRAT. Includes
7040 disassembler and AcpiSrc support. Data from the Intel 64 Architecture
7051 Return status from the global init function AcpiUtGlobalInitialize. This
7053 used by both the kernel subsystem and the utilities such as iASL
7055 The function could possibly fail when the caches are initialized. Yang
7063 conversion from internal to the external ACPI_OBJECT. Used for external
7067 Example Code and Data Size: These are the sizes for the OS-independent
7068 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7069 debug version of the code includes the debug output trace mechanism and
7084 introduced in version 20080701. If the object being evaluated (via
7086 command) is not a method, the debugger can hang while trying to obtain
7091 appear in a disassembled ASL file if they were emitted by the original
7092 compiler. Instead of issuing an error or warning and forcing the user to
7100 run-time error on the second iteration of the loop when an attempt is
7103 create the same named object twice. ACPICA bugzilla 730.
7107 pathnames within the Include operator. previously, only relative
7116 Handles the case for the Interrupt Resource Descriptor where
7117 the ResourceSource argument is omitted but ResourceSourceIndex
7118 is present. Now leave room for the Index. BZ 426
7122 where an error message is emitted if the target does not exist. BZ 516
7124 iASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option
7128 AcpiXtract: Handle EOF while extracting data. Correctly handle the case
7130 the EOF happens immediately after the last table in the input file. Print
7138 Fixed a problem where a git-clone from http would not transfer the entire
7144 enable bit. Now performs a read-change-write of the enable register
7146 of simply writing out the cached enable mask. This will prevent
7154 corrupted after suspend. Now copy the table to a local buffer. For the
7155 OpRegion case, added checksum verify. Use the table length from the table
7156 header, not the region length. For the Buffer case, use the table length
7159 Fixed a problem where the same ACPI table could not be dynamically loaded
7164 unregister a table upon an unload. During a load, if the same table is
7168 Fixed a problem where the wrong descriptor length was calculated for the
7171 are calculated as 12 bytes long, but the actual length in the internal
7172 descriptor is 16 because of the round-up to 8 on the 64-bit build.
7176 Fixed a possible memory leak in the Unload operator. The DdbHandle
7186 Fixed the ordering of the ASCII names in the global mutex table to match
7187 the
7192 Enhanced the AcpiGetObjectInfo interface to return the number of required
7193 arguments if the object is a control method. Added this call to the
7195 so the proper number of default arguments are passed to a method. This
7201 Fixed an extraneous warning from exconfig.c on the 64-bit build.
7203 Example Code and Data Size: These are the sizes for the OS-independent
7204 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7205 debug version of the code includes the debug output trace mechanism and
7222 the
7223 "-CF" flag from the flex compile, enables correct detection of non-ASCII
7224 characters in the input. BZ 441
7227 the
7228 "result of operation not used" warning when the DDB handle returned from
7234 pass address of table to the AML. Added option to disable OpRegion
7238 All of this allows testing of the Load and Unload operators from
7243 and use the standard table header output routine.
7252 BIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This
7257 Simplified the internal ACPI hardware interfaces to eliminate the locking
7261 Fixed a problem where the invocation of a GPE control method could hang.
7265 dispatched. Problem fixed by removing the obsolete code that passed GPE
7267 information to the notify handler via the control method parameter
7270 Fixed a problem where the _SST execution status was incorrectly returned
7272 the caller of AcpiEnterSleepStatePrep. This was a regression introduced
7277 Fixed a problem where a deleted object could be accessed from within the
7280 the
7283 Cleaned up the debug operand dump mechanism. Eliminated unnecessary
7285 and eliminated the use of a negative index in a loop. Operands are now
7286 displayed in the correct order, not backwards. This also fixes a
7288 introduced in 20080514 on 64-bit systems where the elimination of
7289 ACPI_NATIVE_UINT caused the negative index to go large and positive. BZ
7292 Fixed a possible memory leak in EvPciConfigRegionSetup where the error
7296 Updated definitions for the DMAR and SRAT tables to synchronize with the
7299 Fixed a problem in the mutex debug code (in utmutex.c) where an incorrect
7304 Example Code and Data Size: These are the sizes for the OS-independent
7305 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7306 debug version of the code includes the debug output trace mechanism and
7331 Fixed a problem where GPEs were enabled too early during the ACPICA
7335 ensures that all operation regions and devices throughout the namespace
7339 Implemented a change to the enter sleep code. Moved execution of the _GTS
7343 immediately before the SLP_EN bit is set, as per the ACPI specification.
7348 the GPE, even if ACPICA thinks that that it is already disabled. It is
7349 possible that the AML or some other code has enabled the GPE unbeknownst
7351 the ACPICA code.
7353 Fixed a problem with the Field operator where zero-length fields would
7359 Implemented a fix for the Load operator, now load the table at the
7363 loaded at the namespace root even though this goes against the ACPI
7372 acceptable to the ACPI spec, but tables are seen with OEMx and null sigs.
7379 fields to the exception string arrays to eliminate a -1 subtraction on
7380 the
7383 Updated the debug tracking macros to reduce overall code and data size.
7392 method-to-method calls within the AML. Lin Ming.
7394 Eliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is
7396 longer needed, especially with the removal of 16-bit support. It was
7403 Added the C const qualifier for appropriate string constants -- mostly
7406 Example Code and Data Size: These are the sizes for the OS-independent
7407 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7408 debug version of the code includes the debug output trace mechanism and
7421 Implemented ACPI table revision ID validation in the disassembler. Zero
7423 always invalid. For DSDTs, the ID controls the interpreter integer width.
7432 Implemented an additional change to the GPE support in order to suppress
7437 the GPE is unknown to the system. This should prevent future interrupt
7441 Fixed a problem where NULL package elements were not returned to the
7445 a buffer overflow and/or confusing the caller who expected a fixed number
7449 Fixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word,
7461 Fixed a problem where the CreateField and CreateXXXField operators would
7462 incorrectly allow duplicate names (the name of the field) with no
7468 values (ACPI 2.0+) and improved the Notify debug output. Notify on
7469 PowerResource objects is no longer allowed, as per the ACPI
7473 All Reference Objects returned via the AcpiEvaluateObject interface are
7483 than NumElements count" is now produced in the correct case, and is now
7485 error message rather than a debug message. Added a debug message for the
7486 opposite case, where NumElements is larger than the Package List (the
7488 will be padded out with NULL elements as per the ACPI spec.)
7490 Implemented several improvements for the output of the ASL "Debug" object
7494 Fixed two size calculation issues with the variable-length Start
7498 Example Code and Data Size: These are the sizes for the OS-independent
7499 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7500 debug version of the code includes the debug output trace mechanism and
7513 Fixed a problem with the use of the Switch operator where execution of
7514 the
7516 AE_ALREADY_EXISTS exception. This is caused by the fact that there is no
7532 complete first. It is expected that the OSL will queue the enable request
7533 behind all pending notify requests (may require changes to the local host
7538 control method via the external AcpiEvaluateObject interface could cause
7540 AE_AML_INTERNAL exception depending on the order and type of operators
7541 executed by the target control method.
7546 resource template must use the same descriptors (with the same size) as
7547 returned from _CRS. This change affects the following resource
7556 retain their initial type permanently as per the ACPI specification.
7559 conversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388
7561 Fixed a problem with the AcpiGetDevices interface where the mechanism to
7562 match device CIDs did not examine the entire list of available CIDs, but
7563 instead aborted on the first non-matching CID. Andrew Patterson.
7568 truncating the upper dword of a 64-bit value. This macro is only used to
7570 reimplemented the macro so that a 64-bit shift is not performed by
7576 Example Code and Data Size: These are the sizes for the OS-independent
7577 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7578 debug version of the code includes the debug output trace mechanism and
7591 Implemented full disassembler support for the following new ACPI tables:
7592 BERT, EINJ, and ERST. Implemented partial disassembler support for the
7593 complicated HEST table. These tables support the Windows Hardware Error
7601 Added the 2008 copyright to all module headers and signons. This affects
7602 virtually every file in the ACPICA core subsystem, the iASL compiler, and
7603 the tools/utilities.
7605 Fixed a problem with the SizeOf operator when used with Package and
7608 the
7609 execution is now completed before the SizeOf is executed. This problem
7615 Implemented an enhancement to the interpreter "slack mode". In the
7618 an explicit return or an implicitly returned object from the last
7624 Fixed a problem with the Load operator where an exception was not
7627 the case where the table is already loaded. (Lin Ming) BZ 463
7629 Implemented support for the use of DDBHandles as an Indexed Reference, as
7631 the ACPI spec. (Lin Ming) BZ 486
7633 Implemented support for UserTerm (Method invocation) for the Unload
7635 as per the ACPI spec. (Lin Ming) BZ 580
7637 Fixed a problem with the LoadTable operator where the OemId and
7640 the
7643 Implemented support for UserTerm (Method invocation) for the Unload
7645 as per the ACPI spec. (Lin Ming) BZ 580
7651 Example Code and Data Size: These are the sizes for the OS-independent
7652 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7653 debug version of the code includes the debug output trace mechanism and
7666 Implemented support in the disassembler for checksum validation on
7668 binary DSDTs and SSDTs. If incorrect, a message is displayed within the
7670 header dump at the start of the disassembly.
7672 Implemented additional debugging information in the namespace listing
7674 created during compilation. In addition to the namespace hierarchy, the
7678 Fixed a problem with the disassembler where invalid ACPI tables could
7682 Fixed an unexpected parse error when using the optional "parameter types"
7685 Fixed a problem where two External declarations with the same name did
7690 invocation) for the ParameterData parameter to the LoadTable operator.
7699 Implemented full support for deferred execution for the TermArg string
7701 operand resolution for the three string arguments. Similar to
7705 Implemented full argument resolution support for the BankValue argument
7711 Fixed a problem with AcpiGetDevices where the search of a branch of the
7712 device tree could be terminated prematurely. In accordance with the ACPI
7713 specification, the search down the current branch is terminated if a
7721 the underlying AML code changed the GPE enable registers. Now, any
7723 incoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately
7727 Fixed a problem with Index Fields where the Index register was
7733 the AML Interpreter slack mode is enabled. Lin Ming BZ 349
7735 Example Code and Data Size: These are the sizes for the OS-independent
7736 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7737 debug version of the code includes the debug output trace mechanism and
7753 Implemented event counters for each of the Fixed Events, the ACPI SCI
7759 Implemented a new external interface, AcpiGetStatistics, to retrieve the
7760 contents of the various event counters. Returns the current values for
7761 AcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and
7762 AcpiMethodCount. The interface can be expanded in the future if new
7765 the
7768 Fixed a problem with the FromBCD and ToBCD operators. With some
7770 the ShortDivide function worked incorrectly, causing problems with the
7779 control was passed to the called method). The references are now
7781 passed directly to the called method. BZ 5389. Lin Ming
7783 Fixed a problem with CopyObject used in conjunction with the Index
7785 The reference was incorrectly dereferenced before the copy. The reference
7791 references are now correctly generated. This completes the package
7794 Example Code and Data Size: These are the sizes for the OS-independent
7795 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7796 debug version of the code includes the debug output trace mechanism and
7810 The AcpiExec utility now installs handlers for all of the predefined
7814 Fixed a problem with the 64-bit version of AcpiExec where the extended
7816 bit) address fields for the DSDT and FACS within the FADT were not being
7817 used, causing truncation of the upper 32-bits of these addresses. Lin
7826 Fixed a problem with the Alias operator when the target of the alias is a
7829 Processor, and ThermalZone. In these cases, any children of the original
7830 operator could not be accessed via the alias, potentially causing
7834 Fixed a problem with the Package operator where all named references were
7836 the
7841 immediately upon package creation. This is the approach taken with this
7846 20070508. This version changed the Notify handling from asynchronous to
7847 fully synchronous (Device driver Notify handling with respect to the
7852 Fixed a problem with the Increment and Decrement operators where the type
7854 the target object could be unexpectedly and incorrectly changed. (BZ 353)
7857 Fixed a problem with the Load and LoadTable operators where the table
7858 location within the namespace was ignored. Instead, the table was always
7859 loaded into the root or current scope. Lin Ming.
7861 Fixed a problem with the Load operator when loading a table from a buffer
7864 Fixed a problem with the Debug object where a store of a DdbHandle
7866 object to the Debug object could cause a fault.
7868 Added a table checksum verification for the Load operator, in the case
7870 the load is from a buffer. (BZ 578).
7872 Implemented additional parameter validation for the LoadTable operator.
7874 length of the input strings SignatureString, OemIdString, and OemTableId
7878 Example Code and Data Size: These are the sizes for the OS-independent
7879 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7880 debug version of the code includes the debug output trace mechanism and
7894 Fixed a problem where if a single file was specified and the file did not
7906 LOAD and UNLOAD. These interfaces allow the host to track ACPI tables as
7910 Fixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag
7916 referenced from within the same control method (Lin Ming) BZ 341
7918 Example Code and Data Size: These are the sizes for the OS-independent
7919 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7920 debug version of the code includes the debug output trace mechanism and
7938 the
7939 Windows and Unix versions of the compiler. This feature simplifies the
7948 Implemented a Microsoft compatibility design change for the handling of
7949 the
7952 still executes the notify handlers in a different thread, but the
7954 thread that executed the Notify() now waits at a synchronization point
7956 the notify handler to complete. Some machines depend on a synchronous
7961 arguments to the external AcpiEvaluateObject interface. Previously, this
7962 would return the AE_NOT_IMPLEMENTED exception. This feature had not been
7966 Fixed a problem with the internal FADT conversion where ACPI 1.0 FADTs
7969 failures because these fields have meaning in later revisions of the
7975 Fixed a problem where the Global Lock handle was not properly updated if
7977 thread that acquired the Global Lock via executing AML code then
7979 to acquire the lock via the AcpiAcquireGlobalLock interface. Reported by
7983 Fixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list
7984 could be corrupted if the interrupt being removed was at the head of the
7987 Example Code and Data Size: These are the sizes for the OS-independent
7988 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
7989 debug version of the code includes the debug output trace mechanism and
8005 Implemented a change to the order of interpretation and evaluation of AML
8006 operand objects within the AML interpreter. The interpreter now evaluates
8007 operands in the order that they appear in the AML stream (and the
8008 corresponding ASL code), instead of in the reverse order (after the
8012 incompatibilities with the Microsoft AML interpreter as well as being
8015 Implemented a change to the ACPI Global Lock support. All interfaces to
8016 the
8017 global lock now allow the same thread to acquire the lock multiple times.
8018 This affects the AcpiAcquireGlobalLock external interface to the global
8020 as well as the internal use of the global lock to support AML fields -- a
8021 control method that is holding the global lock can now simultaneously
8027 AcpiAcquireGlobalLock is of special interest to drivers for the Embedded
8028 Controller. There is no change to the behavior of the AML Acquire
8030 as this can already be used to acquire a mutex multiple times by the same
8033 Fixed a problem where invalid objects could be referenced in the AML
8036 the internal "Return Object" field is cleared on error and only valid
8046 Fixed an internal problem with the handling of result objects on the
8049 Removed obsolete code that handled the case where AML_NAME_OP is the
8057 remnant from the previously discontinued 16-bit support.
8059 Example Code and Data Size: These are the sizes for the OS-independent
8060 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8061 debug version of the code includes the debug output trace mechanism and
8077 Added the 2007 copyright to all module headers and signons. This affects
8078 virtually every file in the ACPICA core subsystem, the iASL compiler, and
8079 the utilities.
8082 during a table load. A bad pointer was passed in the case where the DSDT
8086 Example Code and Data Size: These are the sizes for the OS-independent
8087 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8088 debug version of the code includes the debug output trace mechanism and
8106 necessary and it clutters the code. All 16-bit macros, types, and
8107 conditional compiles have been removed, cleaning up and simplifying the
8109 across the entire subsystem. DOS support is no longer needed since the
8112 The handler for the Global Lock is now removed during AcpiTerminate to
8113 enable a clean subsystem restart, via the implementation of the
8117 Implemented enhancements to the multithreading support within the
8119 to enable improved multithreading debugging and evaluation of the
8123 Debugger: Enhanced the Statistics/Memory command to emit the total
8125 memory used during the execution, as well as the maximum memory consumed
8127 each of the various object types. (Valery Podrezov)
8129 Example Code and Data Size: These are the sizes for the OS-independent
8130 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8131 debug version of the code includes the debug output trace mechanism and
8153 Optimized the Load ASL operator in the case where the source operand is
8155 operation region. Simply map the operation region memory, instead of
8159 Fixed the Load ASL operator for the case where the source operand is a
8160 region field. A buffer object is also allowed as the source operand. BZ
8163 Fixed a problem where the Load ASL operator allowed the source operand to
8166 SystemMemory, as per the ACPI specification. BZ 481
8168 Additional cleanup and optimizations for the new Table Manager code.
8170 AcpiEnable will now fail if all of the required ACPI tables are not
8174 Added #pragma pack(8/4) to acobject.h to ensure that the structures in
8179 Example Code and Data Size: These are the sizes for the OS-independent
8180 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8181 debug version of the code includes the debug output trace mechanism and
8195 Fixed a problem where the presence of the _OSI predefined control method
8199 SpaceId is now part of the REGION object. BZ 429
8211 eliminated namespace loading during the pass one parse.)
8213 Implemented _CID support for PCI Root Bridge detection. If the _HID does
8215 match the predefined PCI Root Bridge IDs, the _CID list (if present) is
8219 Implemented additional support for the PCI _ADR execution: upsearch until
8227 AcpiWalkNamespace and the AML interpreter. This condition was removed by
8232 AcpiWalkNamespace and the Load/Unload ASL operators and is still under
8235 Restructured the AML ParseLoop function, breaking it into several
8244 Example Code and Data Size: These are the sizes for the OS-independent
8245 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8246 debug version of the code includes the debug output trace mechanism and
8259 Ported the -g option (get local ACPI tables) to the new ACPICA Table
8268 Removed the "Flags" parameter from AcpiGetRegister and AcpiSetRegister.
8269 These functions now use a spinlock for mutual exclusion and the interrupt
8272 Fixed a problem with the Global Lock where the lock could appear to be
8282 Example Code and Data Size: These are the sizes for the OS-independent
8283 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8284 debug version of the code includes the debug output trace mechanism and
8298 Fixed a compilation problem with the pre-defined Resource Descriptor
8302 if the parent ResourceTemplate pathname places the template within a
8303 different namespace scope than the current scope. (BZ 7212)
8305 Fixed a problem where the compiler could hang after syntax errors
8309 Fixed a problem with the AmlFilename parameter to the DefinitionBlock()
8312 a null string (""). Now, the original input filename is used as the AML
8315 Implemented a generic batch command mode for the AcpiExec utility
8324 Enhanced the implementation of the "serialized mode" of the interpreter
8325 (enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is
8328 the interpreter lock is simply no longer released before a blocking
8329 operation during control method execution. This effectively makes the AML
8335 attempts to create 2 objects of the same name. This once again returns
8336 AE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism
8338 will dynamically serialize the control method to possible prevent future
8341 Integrated a fix for a problem with PCI Express HID detection in the PCI
8344 Moved all FADT-related functions to a new file, tbfadt.c. Eliminated the
8345 AcpiHwInitialize function - the FADT registers are now validated when the
8348 Added two new warnings during FADT verification - 1) if the FADT is
8350 than the largest known FADT version, and 2) if there is a mismatch
8353 32-bit block address and the 64-bit X counterpart (when both are non-
8356 Example Code and Data Size: These are the sizes for the OS-independent
8357 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8358 debug version of the code includes the debug output trace mechanism and
8372 Fixed a problem with the implementation of the Switch() operator where
8373 the
8374 temporary variable was declared too close to the actual Switch, instead
8376 at method level. This could cause a problem if the Switch() operator is
8377 within a while loop, causing an error on the second iteration. (BZ 460)
8382 Disassembly of an FADT now verifies the input FADT and reports any errors
8387 each output line with the current buffer offset.
8390 the end of some of the subtables.
8393 ResourceTemplate, but cannot be disassembled as such because the EndTag
8395 not appear at the very end of the buffer.
8397 AcpiExec - Added the "-t" command line option to enable the serialized
8399 of the AML interpreter.
8406 Miscellaneous fixes for the Table Manager:
8416 immediately disabled to prevent the waking GPE from firing again and to
8417 prevent other wake GPEs from interrupting the wake process.
8419 Added the AcpiGpeCount global that tracks the number of processed GPEs,
8423 Implemented support for the "DMAR" ACPI table (DMA Redirection Table) in
8424 both the ACPICA headers and the disassembler.
8426 Example Code and Data Size: These are the sizes for the OS-independent
8427 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8428 debug version of the code includes the debug output trace mechanism and
8442 Disassembler support for the DMAR ACPI table.
8450 reimplemented. The new design is much simpler, and reduces the overall
8452 and data size of the kernel-resident ACPICA by approximately 5%. Also, it
8454 now possible to obtain the ACPI tables very early during kernel
8468 - AcpiInitializeTables: Must be called before the table manager can be
8470 - AcpiReallocateRootTable: Used to transfer the root table to dynamically
8472 - AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI
8474 in the RSDT/XSDT.
8478 - AcpiGetTableHeader returns the actual mapped table header, not a copy.
8481 - AcpiGetTable returns the actual mapped table. The mapping is managed
8482 internally and must not be deleted by the caller. Use of this interface
8487 - The interface to AcpiOsMapMemory has changed to be consistent with the
8495 - The interface to the ACPI Global Lock acquire/release macros have
8497 slightly since ACPICA no longer keeps a local copy of the FACS with a
8498 constructed pointer to the actual global lock.
8500 Porting to the new table manager:
8503 during the OS initialization process. It allows the host to specify an
8505 of memory to be used to store the internal version of the RSDT/XSDT (root
8506 table). This allows the host to access ACPI tables before memory
8511 to copy the root table to a dynamically allocated array, freeing up the
8512 scratch memory specified in the call to AcpiInitializeTables.
8513 - AcpiSubsystemInitialize: This existing interface is independent of the
8514 Table Manager, and does not have to be called before the Table Manager
8516 be used, it only must be called before the rest of ACPICA can be used.
8517 - ACPI Tables: Some changes have been made to the names and structure of
8518 the
8524 - Update interfaces to the Global Lock acquire/release macros if local
8531 Example Code and Data Size: These are the sizes for the OS-independent
8532 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8533 debug version of the code includes the debug output trace mechanism and
8554 The full source code for the ASL test suite used to validate the iASL
8555 compiler and the ACPICA core subsystem is being released with the ACPICA
8556 source for the first time. The source is contained in a separate package
8560 should appear on the Intel/ACPI web site shortly. (Valery Podrezov,
8564 Completed a new design and implementation for support of the ACPI Global
8565 Lock. On the OS side, the global lock is now treated as a standard AML
8566 mutex. Previously, multiple OS threads could "acquire" the global lock
8567 simultaneously. However, this could cause the BIOS to be starved out of
8568 the
8569 lock - especially in cases such as the Embedded Controller driver where
8570 there is a tight coupling between the OS and the BIOS.
8572 Implemented an optimization for the ACPI Global Lock interrupt mechanism.
8573 The Global Lock interrupt handler no longer queues the execution of a
8574 separate thread to signal the global lock semaphore. Instead, the
8576 is signaled directly from the interrupt handler.
8578 Implemented support within the AML interpreter for package objects that
8579 contain a larger AML length (package list length) than the package
8581 count. In this case, the length of the package is truncated to match the
8582 package element count. Some BIOS code apparently modifies the package
8584 on the fly, and this change supports this behavior. Provides
8586 with the MS AML interpreter. (With assistance from Fiodor Suietov)
8588 Implemented a temporary fix for the BankValue parameter of a Bank Field
8590 support all constant values, now including the Zero and One opcodes.
8602 Example Code and Data Size: These are the sizes for the OS-independent
8603 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8604 debug version of the code includes the debug output trace mechanism and
8625 Added the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers
8626 that do not allow the initialization of address pointers within packed
8627 structures - even though the hardware itself may support misaligned
8628 transfers. Some of the debug data structures are packed by default to
8631 Added an error message for the case where AcpiOsGetThreadId() returns
8633 A non-zero value is required by the core ACPICA code to ensure the proper
8636 The DSDT is now the only ACPI table that determines whether the AML
8639 the hooks for per-table 32/64 switching have been removed from the code.
8641 clarification to the ACPI specification is forthcoming in ACPI 3.0B.
8643 Fixed a possible leak of an OwnerID in the error path of
8647 when using the AcpiTbDeleteTablesByType interface (with assistance from
8650 Fixed a problem with Serialized control methods where the semaphore
8651 associated with the method could be over-signaled after multiple method
8654 Fixed two issues with the locking of the internal namespace data
8656 Both the Unload() operator and AcpiUnloadTable interface now lock the
8657 namespace during the namespace deletion associated with the table unload
8679 Example Code and Data Size: These are the sizes for the OS-independent
8680 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8681 debug version of the code includes the debug output trace mechanism and
8704 Implemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This
8705 allows the type to be customized to the host OS for improved efficiency
8708 Implemented support for "ignored" bits in the ACPI registers. According
8710 the ACPI specification, these bits should be preserved when writing the
8715 Implemented the initial deployment of new OSL mutex interfaces. Since
8718 feature was requested. The base code now uses mutexes (and the new mutex
8720 the current release, the mutex interfaces are defined as macros to map
8722 to the existing semaphore interfaces. Therefore, no OSL changes are
8726 Fixed several problems with the support for the control method SyncLevel
8727 parameter. The SyncLevel now works according to the ACPI specification
8729 in concert with the Mutex SyncLevel parameter, since the current
8731 is a property of the executing thread. Mutual exclusion for control
8735 Fixed three instances of the use of the C shift operator in the bitfield
8736 support code (exfldio.c) to avoid the use of a shift value larger than
8737 the
8740 can cause unpredictable results, and therefore the case must be detected
8745 via the Load() or LoadTable() ASL operators. This should improve
8749 the tables present in the RSDT/XSDT.)
8751 Example Code and Data Size: These are the sizes for the OS-independent
8752 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8753 debug version of the code includes the debug output trace mechanism and
8774 Converted the locking mutex used for the ACPI hardware to a spinlock.
8778 interfaces that directly access the ACPI hardware can be safely called
8780 interrupt level. OSL code that implements the semaphore interfaces should
8784 Fixed a regression introduced in 20060526 where the ACPI device
8789 Fixed an IndexField issue where a write to the Data Register should be
8790 limited in size to the AccessSize (width) of the IndexField itself. (BZ
8803 Example Code and Data Size: These are the sizes for the OS-independent
8804 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8805 debug version of the code includes the debug output trace mechanism and
8833 Restructured, flattened, and simplified the internal interfaces for
8838 Fixed a problem with the CopyObject operator where the first parameter
8840 not typed correctly for the parser, interpreter, compiler, and
8845 produced incorrect results with some C compilers. Since the behavior of C
8846 compilers when the shift value is larger than the datatype width is
8847 apparently not well defined, the interpreter now detects this condition
8868 - Status of the Global Initialization Handler call not used (BZ 366)
8871 Example Code and Data Size: These are the sizes for the OS-independent
8872 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8873 debug version of the code includes the debug output trace mechanism and
8887 Modified the parser to allow the names IO, DMA, and IRQ to be used as
8894 Disassembler: fixed an incorrect disassembly problem with the
8903 Replaced the AcpiOsQueueForExecution interface with a new interface named
8904 AcpiOsExecute. The major difference is that the new interface does not
8909 Type parameter. The Type tells the host what type of execution is being
8911 This allows the host to queue and execute the request as appropriate for
8912 the
8915 for the various request types. This enables fixes for multithreading
8920 Fixed a possible memory leak associated with the support for the so-
8925 Fixed a problem with the Load() operator where a table load from an
8931 Example Code and Data Size: These are the sizes for the OS-independent
8932 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
8933 debug version of the code includes the debug output trace mechanism and
8948 Disassembler: Implemented support to cross reference the internal
8952 within the current table being disassembled. This will simplify the
8960 statements. This is problematic because the AML cannot be correctly
8962 until the number of arguments for each control method is known.
8964 standalone method invocations and invocations as the source operand of a
8967 Disassembler: Implemented support for the ASL pseudo-operators LNotEqual,
8969 LNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code
8970 more readable and likely closer to the original ASL source.
8978 the _STA method was not run unless an _INI was also present for the same
8982 device had no _INI, _STA would not be run, the not-present status would
8984 be discovered, and the children of the device would be incorrectly
8992 Implemented support for the device initialization case where the returned
8995 is not run, but the device children are examined for presence, as per the
8998 Implemented an additional change to the IndexField support in order to
8999 conform to MS behavior. The value written to the Index Register is not
9000 simply a byte offset, it is a byte offset in units of the access width of
9001 the parent Index Field. (Fiodor Suietov)
9004 interface is called during the creation of all AML operation regions, and
9005 allows the host OS to exert control over what addresses it will allow the
9013 interface allows the host OS to match the various "optional"
9014 interface/behavior strings for the _OSI predefined control method as
9018 Restructured and corrected various problems in the exception handling
9023 Modified the Linux source converter to ignore quoted string literals
9027 with the disassembler and other areas where such strings must not be
9030 The ACPI_FUNCTION_* macros no longer require quotes around the function
9031 name. This allows the Linux source converter to convert the names, now
9033 the converter ignores quoted strings.
9035 Example Code and Data Size: These are the sizes for the OS-independent
9036 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
9037 debug version of the code includes the debug output trace mechanism and
9056 1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is
9058 WAIT_FOREVER (0xFFFF) and the code does not examine the return value to
9059 check for the possible timeout, a warning is issued.
9063 operand and it also does not use the function return value from the
9064 operator, a warning is issued since the operator effectively does
9072 the unreferenced objects. Even so, care is taken to only flag objects
9074 don't look like they will ever be used. For example, the reserved methods
9076 expected that the OS will invoke them.
9083 Implemented header file support for the following additional ACPI tables:
9086 all current and known ACPI tables are now defined in the ACPICA headers
9091 characters to be loaded. Previously, this would cause the table load to
9095 matches the behavior of the Microsoft ACPI implementation.
9097 Fixed a couple regressions introduced during the memory optimization in
9098 the
9106 null pointers are now trapped and ignored, matching the behavior of the
9107 previous implementation before the deployment of AcpiOsReleaseObject.
9110 Fixed a memory mapping leak during the deletion of a SystemMemory
9117 Reorganized the ACPI table header files into two main files: one for the
9118 ACPI tables consumed by the ACPICA core, and another for the
9120 ACPI tables that are consumed by the drivers and other software. The
9125 Example Code and Data Size: These are the sizes for the OS-independent
9126 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The
9127 debug version of the code includes the debug output trace mechanism and
9142 tables (tables other than DSDTs and SSDTs.) This includes the new tables
9143 added to the ACPICA headers, therefore all current and known ACPI tables
9148 enables the disassembly of such tables. Invalid characters within names
9150 changed to '*' to make the name printable; the iASL compiler will still
9155 the
9156 input file. The default invocation extracts only the DSDTs and SSDTs.
9159 makefile for the AcpiXtract utility.
9166 Implemented the use of a cache object for all internal namespace nodes.
9172 Removed the reference count mechanism for internal namespace nodes, since
9174 was deemed unnecessary. This reduces the size of each namespace node by
9175 about 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit
9177 and 32 bytes for the 64-bit case.
9181 platforms by packing data within the 64-bit alignment. This includes the
9183 instances corresponding to the namespace objects.
9185 Added two new strings for the predefined _OSI method: "Windows 2001.1
9189 Split the allocation tracking mechanism out to a separate file, from
9194 Removed all remnants of the obsolete ACPI_REPORT_* macros and the
9196 code. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING
9199 Code and Data Size: These are the sizes for the acpica.lib produced by
9200 the
9203 driver or OSPM code. The debug version of the code includes the debug
9206 values will vary depending on the efficiency of the compiler and the
9219 Implemented an ANSI C version of the acpixtract utility. This version
9221 automatically extract the DSDT and all SSDTs from the input acpidump text
9222 file and dump the binary output to separate files. It can also display a
9223 summary of the input file including the headers for each table found and
9232 Tagged all external interfaces to the subsystem with the new
9235 kernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL
9238 Added the ACPI_THREAD_ID type for the return value from
9240 This allows the host to define this as necessary to simplify kernel
9243 Fixed two interpreter problems related to error processing, the deletion
9245 objects, and placing invalid pointers onto the internal operator result
9248 Increased the reference count threshold where a warning is emitted for
9252 large namespaces (especially 64-bit.) Increased the value from 0x400 to
9255 Due to universal disagreement as to the meaning of the 'c' in the
9257 function, the ACPI_MEM_CALLOCATE macro has been renamed to
9258 ACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'.
9262 Code and Data Size: These are the sizes for the acpica.lib produced by
9263 the
9266 driver or OSPM code. The debug version of the code includes the debug
9269 values will vary depending on the efficiency of the compiler and the
9286 resource descriptor, a name is assigned to the descriptor and the offset
9288 translated to the appropriate resource tag and pathname. The addition of
9289 this support brings the disassembled code very close to the original ASL
9290 source code and helps eliminate run-time errors when the disassembled
9292 is modified (and recompiled) in such a way as to invalidate the original
9295 Implemented support for a Descriptor Name as the last parameter to the
9297 Register() macro. This parameter was inadvertently left out of the ACPI
9300 Fixed a problem where the use of the "_OSI" string (versus the full path
9303 Fixed a problem with the error message that occurs when an invalid string
9314 Implemented a change to the IndexField support to match the behavior of
9315 the
9316 Microsoft AML interpreter. The value written to the Index register is now
9318 byte offset, no longer an index based upon the width of the Data
9320 This should fix IndexField problems seen on some machines where the Data
9324 Fixed a problem where several resource descriptor types could overrun the
9331 the internal buffer, causing alignment faults on IA64 platforms.
9333 Code and Data Size: These are the sizes for the acpica.lib produced by
9334 the
9337 driver or OSPM code. The debug version of the code includes the debug
9340 values will vary depending on the efficiency of the compiler and the
9366 normal execution. These became apparent after the conversion from
9369 Fixed a problem where the CreateField operator could hang if the BitIndex
9377 Fixed a problem where the AE_BUFFER_LIMIT exception was returned instead
9383 Implemented a memory cleanup at the end of the execution of each
9385 of an AML While() loop, preventing the accumulation of outstanding
9389 Eliminated a chunk of duplicate code in the object resolution code.
9393 Fixed several warnings during the 64-bit code generation.
9399 readability of the Linux code.
9401 Code and Data Size: The current and previous library sizes for the core
9402 subsystem are shown below. These are the code and data sizes for the
9403 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9406 the
9407 code includes the debug output trace mechanism and has a much larger code
9408 and data size. Note that these values will vary depending on the
9410 of the compiler and the compiler options used during generation.
9422 Fixed a problem with the disassembly of a BankField operator with a
9424 expression for the BankValue parameter.
9431 Implemented support in the Resource Manager to allow unresolved
9433 references within resource package objects for the _PRT method. This
9435 is in addition to the previously implemented unresolved reference support
9436 within the AML parser. If the interpreter slack mode is enabled, these
9437 unresolved references will be passed through to the caller as a NULL
9442 messages across the subsystem. These macros are simpler and generate less
9444 ACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older
9445 macros remain defined to allow ACPI drivers time to migrate to the new
9448 Implemented the ACPI_CPU_FLAGS type to simplify host OS integration of
9449 the
9453 resolved, in both the interpreter and the iASL compiler.
9455 Fixed several problems with the implementation of the
9457 ASL operator. As per the ACPI specification, zero length buffers are now
9463 Fixed a possible structure overwrite in the AcpiGetObjectInfo external
9466 Code and Data Size: The current and previous library sizes for the core
9467 subsystem are shown below. These are the code and data sizes for the
9468 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9471 the
9472 code includes the debug output trace mechanism and has a much larger code
9473 and data size. Note that these values will vary depending on the
9475 of the compiler and the compiler options used during generation.
9497 virtually every file in the ACPICA core subsystem, iASL compiler, and the
9500 Enhanced the ACPICA error reporting in order to simplify user migration
9502 the non-debug version of ACPICA. Replaced all instances of the
9503 ACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN
9505 levels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros,
9506 respectively. This preserves all error and warning messages in the non-
9508 version of the ACPICA code (this has been referred to as the "debug lite"
9510 error/warning messages across the ACPICA code. This increases the code
9512 data size of the default non-debug version of the code somewhat (about
9515 eliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time
9516 configuration option. The size of the debug version of ACPICA remains
9518 the same.
9520 Fixed a memory leak within the AML Debugger "Set" command. One object was
9521 not properly deleted for every successful invocation of the command.
9523 Code and Data Size: The current and previous library sizes for the core
9524 subsystem are shown below. These are the code and data sizes for the
9525 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9528 the
9529 code includes the debug output trace mechanism and has a much larger code
9530 and data size. Note that these values will vary depending on the
9532 of the compiler and the compiler options used during generation.
9544 The compiler now officially supports the ACPI 3.0a specification that was
9554 objects. A null object is inserted in the package when a named reference
9555 cannot be located in the current namespace. Enabled via the interpreter
9560 Implemented an optimization to the initialization sequence that can
9562 boot time. During ACPI device initialization, the _STA method is now run
9564 and only if the _INI method exists. The _STA method is used to determine
9566 the device is present; An _INI can only be run if _STA returns present,
9568 it is a waste of time to run the _STA method if the _INI does not exist.
9571 Implemented use of the C99 uintptr_t for the pointer casting macros if it
9573 available in the current compiler. Otherwise, the default (void *) cast
9577 Fixed some possible memory leaks found within the execution path of the
9580 Fixed a problem introduced in the 20051202 release where an exception is
9584 Moved resource descriptor string constants that are used by both the AML
9585 disassembler and AML debugger to the common utilities directory so that
9588 Implemented support in the AcpiExec utility (-e switch) to globally
9592 Added the rsinfo.c source file to the AcpiExec makefile for Linux/Unix
9595 Code and Data Size: The current and previous library sizes for the core
9596 subsystem are shown below. These are the code and data sizes for the
9597 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9600 the
9601 code includes the debug output trace mechanism and has a much larger code
9602 and data size. Note that these values will vary depending on the
9604 of the compiler and the compiler options used during generation.
9625 Modified the parsing of control methods to no longer create namespace
9626 objects during the first pass of the parse. Objects are now created only
9627 during the execute phase, at the moment the namespace creation operator
9629 encountered in the AML (Name, OperationRegion, CreateByteField, etc.)
9634 correctly block multiple threads from attempting to create the same
9638 Increased the number of available Owner Ids for namespace object tracking
9639 from 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen
9644 Fixed a problem with the AcpiExec utility where a fault could occur when
9645 the
9648 Enhanced the namespace dump routine to output the owner ID for each
9651 Code and Data Size: The current and previous library sizes for the core
9652 subsystem are shown below. These are the code and data sizes for the
9653 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9656 the
9657 code includes the debug output trace mechanism and has a much larger code
9658 and data size. Note that these values will vary depending on the
9660 of the compiler and the compiler options used during generation.
9674 simplify the parse, the grammar now allows for multiple Default
9676 and this error is now detected and flagged during the analysis phase.
9678 Disassembler: The disassembly now includes the contents of the original
9679 table header within a comment at the start of the file. This includes the
9680 name and version of the original ASL compiler.
9687 Fixed a problem in the AML parser where the method thread count could be
9688 decremented below zero if any errors occurred during the method parse
9692 This also fixed a related regression with the mechanism that detects and
9693 corrects methods that cannot properly handle reentrancy (related to the
9694 deployment of the new OwnerId mechanism.)
9696 Eliminated the pre-parsing of control methods (to detect errors) during
9697 table load. Related to the problem above, this was causing unwind issues
9699 any errors occurred during the parse, and it seemed to be overkill. A
9704 Fixed a problem with the new table-driven resource manager where an
9715 Removed the length limit (200) on string objects as per the upcoming ACPI
9716 3.0A specification. This affects the following areas of the interpreter:
9720 of the ASL Concatentate operator, 3) the String object result of the ASL
9723 Fixed a problem in the Windows OS interface layer (OSL) where a
9725 on a semaphore object would incorrectly timeout. This allows the
9726 multithreading features of the AcpiExec utility to work properly under
9729 Updated the Linux makefiles for the iASL compiler and AcpiExec to include
9730 the recently added file named "utresrc.c".
9732 Code and Data Size: The current and previous library sizes for the core
9733 subsystem are shown below. These are the code and data sizes for the
9734 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9737 the
9738 code includes the debug output trace mechanism and has a much larger code
9739 and data size. Note that these values will vary depending on the
9741 of the compiler and the compiler options used during generation.
9753 Removed the limit (200) on string objects as per the upcoming ACPI 3.0A
9754 specification. For the iASL compiler, this means that string literals
9756 the source ASL can be of any length.
9758 Enhanced the listing output to dump the AML code for resource descriptors
9759 immediately after the ASL code for each descriptor, instead of in a block
9761 the end of the entire resource template.
9763 Enhanced the compiler debug output to dump the entire original parse tree
9764 constructed during the parse phase, before any transforms are applied to
9765 the
9773 Modified the subsystem initialization sequence to improve GPE support.
9777 of the _PRW methods (Power Resources for Wake) until after the hardware
9779 fully initialized and the SCI handler is installed. This allows the _PRW
9780 methods to access fields protected by the Global Lock. This will fix
9784 Converted the ACPI internal object disassemble and display code within
9785 the
9789 Fixed a regression with the ConcatenateResTemplate() ASL operator
9791 in the 20051021 release.
9793 Implemented support for "local" internal ACPI object types within the
9794 debugger "Object" command and the AcpiWalkNamespace external interfaces.
9801 code is shared by both the Resource Manager and the AML Debugger.
9803 Code and Data Size: The current and previous library sizes for the core
9804 subsystem are shown below. These are the code and data sizes for the
9805 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9808 the
9809 code includes the debug output trace mechanism and has a much larger code
9810 and data size. Note that these values will vary depending on the
9812 of the compiler and the compiler options used during generation.
9826 for both Buffer and Package objects where the parse stack could overflow.
9828 Enhanced the pre-compile source code scan for non-ASCII characters to
9833 immediately rather than during the parse phase or later.
9835 Enhanced the ASL grammar definition to force early reductions on all
9837 style grammar elements so that the overall parse stack usage is greatly
9838 reduced. This should improve performance and reduce the possibility of
9842 Eliminated all reduce/reduce conflicts in the iASL parser generation.
9844 with the addition of a %expected statement, the compiler generates from
9847 Fixed a possible segment fault in the disassembler if the input filename
9855 Implemented support for the EM64T and other x86-64 processors. This
9860 Completed conversion of the Resource Manager to nearly full table-driven
9861 operation. Specifically, the resource conversion code (convert AML to
9862 internal format and the reverse) and the debug code to dump internal
9873 Implemented support within the resource conversion code for the Type-
9874 Specific byte within the various ACPI 3.0 *WordSpace macros.
9876 Fixed some issues within the resource conversion code for the type-
9879 implemented support for the MTP and TTP flags. For I/O, split the TRS and
9882 Code and Data Size: The current and previous library sizes for the core
9883 subsystem are shown below. These are the code and data sizes for the
9884 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9887 the
9888 code includes the debug output trace mechanism and has a much larger code
9889 and data size. Note that these values will vary depending on the
9891 of the compiler and the compiler options used during generation.
9905 the
9908 AML/ASL code that includes the Index byte without the string. When such
9911 the modified code created a resource template with a different size than
9912 the
9913 original, breaking code that used fixed offsets into the resource
9917 Removed a recent feature of the disassembler to ignore a lone
9919 byte. This byte is now emitted if present so that the exact AML can be
9920 reproduced when the disassembled code is recompiled.
9922 Improved comments and text alignment for the resource descriptor code
9923 emitted by the disassembler.
9925 Implemented disassembler support for the ACPI 3.0 AccessSize field within
9934 Completed a major overhaul of the Resource Manager code - specifically,
9935 optimizations in the area of the AML/internal resource conversion code.
9940 variables, and naming conventions across the manager have been
9944 driver code, depending on how resources are handled by the host OS.
9951 guarantee that the argument is not evaluated twice, making them less
9953 to macro side-effects. However, since there exists the possibility of
9956 in the debug generation case), the original macros are optionally
9958 Note that some invocations of the return_VALUE macro may now cause size
9959 mismatch warnings; the return_UINT8 and return_UINT32 macros are provided
9966 this mechanism. The intent is to allow the host OS to easily enable and
9968 easily exposed to a user or debugger interface if desired. See the file
9973 the behavior of AcpiUtAllocate.
9975 Code and Data Size: The current and previous library sizes for the core
9976 subsystem are shown below. These are the code and data sizes for the
9977 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
9980 the
9981 code includes the debug output trace mechanism and has a much larger code
9982 and data size. Note that these values will vary depending on the
9984 of the compiler and the compiler options used during generation.
9996 A remark is issued if the effective compile-time length of a package or
10004 Fixed a problem within the Resource Manager where support for the Generic
10009 Completely restructured the Resource Manager code to utilize table-driven
10010 dispatch and lookup, eliminating many of the large switch() statements.
10012 reduces overall subsystem code size and code complexity. Affects the
10015 Cleaned up and restructured the debug dump output for all resource
10016 descriptors. Improved readability of the output and reduced code size.
10018 Fixed a problem where changes to internal data structures caused the
10021 Code and Data Size: The current and previous library sizes for the core
10022 subsystem are shown below. These are the code and data sizes for the
10023 acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler.
10026 the
10027 code includes the debug output trace mechanism and has a much larger code
10028 and data size. Note that these values will vary depending on the
10030 of the compiler and the compiler options used during generation.
10042 Updated the disassembler to automatically insert an EndDependentFn()
10044 into the ASL stream if this macro is missing in the original AML code,
10045 simplifying compilation of the resulting ASL module.
10047 Fixed a problem in the disassembler where a disassembled ResourceSource
10050 not followed by a comma, causing errors when the resulting ASL module was
10059 Fixed a problem with the internal Owner ID allocation and deallocation
10061 This should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId"
10065 Completely eliminated all vestiges of support for the "module-level
10068 should eliminate the NO_RETURN_VALUE exceptions seen during table load on
10071 Fixed a problem within the resource manager code where the transaction
10073 for a 64-bit address descriptor were handled incorrectly in the type-
10076 Consolidated duplicate code within the address descriptor resource
10080 Fixed a fault when using the AML debugger "disassemble" command to
10083 Removed references to the "release_current" directory within the Unix
10087 are shown below. These are the code and data sizes for the acpica.lib
10088 produced by the Microsoft Visual C++ 6.0 compiler. These values do not
10089 include any ACPI driver or OSPM code. The debug version of the code
10091 the debug output trace mechanism and has a much larger code and data
10093 Note that these values will vary depending on the efficiency of the
10095 and the compiler options used during generation.
10107 Implemented an error check for illegal duplicate values in the interrupt
10109 dma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and
10112 Implemented error checking for the Irq() and IrqNoFlags() macros to
10114 too many values in the interrupt list (16 max) and invalid values in the
10118 200 characters as per the ACPI specification.
10120 Fixed a fault when using the -ln option (generate namespace listing).
10123 resource descriptor has already been used within the current scope.
10132 attempting to load a duplicate table. The compare is performed if the
10135 the same OEM Table ID and revision to be loaded - probably against the
10137 specification, but discovered in the field nonetheless.
10139 Added the changes.txt logfile to each of the zipped release packages.
10142 shown below. These are the code and data sizes for the acpica.lib
10144 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10145 any ACPI driver or OSPM code. The debug version of the code includes the
10148 that these values will vary depending on the efficiency of the compiler
10150 the compiler options used during generation.
10163 objects if optimization is disabled (via the -oa switch).
10166 length packages when the package length is not specified and the number
10179 attempts to load the same SSDT upon certain events. With assistance from
10182 Restructured the main interface to the AML parser in order to correctly
10183 handle all exceptional conditions. This will prevent leakage of the
10185 resource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on
10194 compilation. When the issues are fully resolved, the code will be enabled
10198 Modified the internal functions for debug print support to define the
10203 Linted the entire ACPICA source tree for both 32-bit and 64-bit.
10205 Implemented support to display an object count summary for the AML
10210 shown below. These are the code and data sizes for the acpica.lib
10212 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10213 any ACPI driver or OSPM code. The debug version of the code includes the
10216 that these values will vary depending on the efficiency of the compiler
10218 the compiler options used during generation.
10230 Fixed a regression that appeared in the 20050708 version of the compiler
10231 where an error message was inadvertently emitted for invocations of the
10240 The use of the CPU stack in the debug version of the subsystem has been
10242 function that used the debug macros. This structure has been removed in
10243 favor of declaring the individual elements as parameters to the debug
10244 functions. This reduces the cumulative stack use during nested execution
10246 ACPI function calls at the cost of a small increase in the code size of
10247 the
10248 debug version of the subsystem. With assistance from Alexey Starikovskiy
10252 Added the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent
10253 headers to define a macro that will return the current function name at
10256 the debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the
10257 compiler-dependent header, the function name is saved on the CPU stack
10260 exists no standard ANSI-C defined macro that that returns the function
10263 Redesigned and reimplemented the "Owner ID" mechanism used to track
10265 execution. A bitmap is now used to allocate and free the IDs, thus
10267 the wraparound problem present in the previous implementation. The size
10269 the namespace node descriptor was reduced by 2 bytes as a result (Alexey
10272 Removed the UINT32_BIT and UINT16_BIT types that were used for the
10274 flag definitions within the headers for the predefined ACPI tables. These
10275 have been replaced by UINT8_BIT in order to increase the code portability
10277 the subsystem. If the use of UINT8 remains a problem, we may be forced to
10280 Enhanced the performance of the AcpiUtUpdateObjectReference procedure.
10282 is a frequently used function and this improvement increases the
10284 of the entire subsystem (Alexey Starikovskiy).
10286 Fixed several possible memory leaks and the inverse - premature object
10290 shown below. These are the code and data sizes for the acpica.lib
10292 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10293 any ACPI driver or OSPM code. The debug version of the code includes the
10296 that these values will vary depending on the efficiency of the compiler
10298 the compiler options used during generation.
10312 Modified the new OSL cache interfaces to use ACPI_CACHE_T as the type for
10313 the host-defined cache object. This allows the OSL implementation to
10315 and type this object in any manner desired, simplifying the OSL
10317 Linux, and should be defined in the OS-specific header file for other
10320 Changed the interface to AcpiOsAcquireObject to directly return the
10321 requested object as the function return (instead of ACPI_STATUS.) This
10322 change was made for performance reasons, since this is the purpose of the
10323 interface in the first place. AcpiOsAcquireObject is now similar to the
10332 Modified the initialization sequence in AcpiInitializeSubsystem to call
10333 the
10336 change was required because the global initialization now calls OSL
10339 Enhanced the Dump command to display the entire contents of Package
10343 Restructured the code base to split some files because of size and/or
10344 because the code logically belonged in a separate file. New files are
10346 below. All makefiles and project files included in the ACPI CA release
10355 shown below. These are the code and data sizes for the acpica.lib
10357 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10358 any ACPI driver or OSPM code. The debug version of the code includes the
10361 that these values will vary depending on the efficiency of the compiler
10363 the compiler options used during generation.
10375 Fixed a regression introduced in version 20050513 where the use of a
10385 Moved the object cache operations into the OS interface layer (OSL) to
10387 the host OS to handle these operations if desired (for example, the Linux
10388 OSL will invoke the slab allocator). This support is optional; the
10390 time define ACPI_USE_LOCAL_CACHE may be used to utilize the original
10392 code in the ACPI CA core. The new OSL interfaces are shown below. See
10393 utalloc.c for an example implementation, and acpiosxf.h for the exact
10401 Modified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to
10404 Note: the current execution state (interrupt handler or not) is no longer
10405 passed to these interfaces. If necessary, the OSL must determine this
10410 Fixed a problem in the ACPI table handling where a valid XSDT was assumed
10411 present if the revision of the RSDP was 2 or greater. According to the
10413 specification, the XSDT is optional in all cases, and the table manager
10415 Otherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs
10417 only the RSDT.
10419 Fixed an interpreter problem with the Mid() operator in the case of an
10421 string where the resulting output string is of zero length. It now
10426 Fixed a problem with the control method argument handling to allow a
10433 Enhanced the debugger Find command to emit object values in addition to
10434 the
10435 found object pathnames. The output format is the same as the dump
10439 Enhanced the debugger Set command. It now has the ability to set the
10441 of any Named integer object in the namespace (Previously, only method
10446 shown below. These are the code and data sizes for the acpica.lib
10448 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10449 any ACPI driver or OSPM code. The debug version of the code includes the
10452 that these values will vary depending on the efficiency of the compiler
10454 the compiler options used during generation.
10466 Fixed a regression in the disassembler where if/else/while constructs
10468 output incorrectly. This problem was introduced in the previous release
10469 (20050526). This problem also affected the single-step disassembly in the
10472 Fixed a problem where compiling the reserved _OSI method would randomly
10476 Enhanced the disassembler to emit compilable code in the face of
10478 AML resource descriptors. If the optional ResourceSourceIndex is present,
10479 but the ResourceSource is not, do not emit the ResourceSourceIndex in the
10480 disassembly. Otherwise, the resulting code cannot be compiled without
10489 the module level (not within a control method.) These opcodes are
10491 exactly once at the time the table is loaded. This type of code was legal
10493 until the release of ACPI 2.0B (2002) and is now supported within ACPI CA
10497 This eliminates the "Encountered executable code at module level" warning
10500 Fixed a problem in the interpreter where an AE_NOT_FOUND exception could
10501 inadvertently be generated during the lookup of namespace objects in the
10504 problem could occur during the resolution of forward references to
10508 Added the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function,
10509 corresponding to the same #ifdef in the AcpiUtAcquireMutex function. This
10510 allows the deadlock detection debug code to be compiled out in the normal
10516 suggested by FreeBSD and the Coverity Prevent source code analysis tool.
10523 shown below. These are the code and data sizes for the acpica.lib
10525 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10526 any ACPI driver or OSPM code. The debug version of the code includes the
10529 that these values will vary depending on the efficiency of the compiler
10531 the compiler options used during generation.
10544 the module level (not within a control method.) These operators will be
10545 executed once at the time the table is loaded. This type of code was
10547 up until the release of ACPI 2.0B (2002) and is now supported by the iASL
10552 The ACPI integer width (specified via the table revision ID or the -r
10556 Previously, the revision ID value was only emitted in the AML table
10559 An error message is now generated for the Mutex and Method operators if
10560 the
10561 SyncLevel parameter is outside the legal range of 0 through 15.
10563 Fixed a problem with the Method operator ParameterTypes list handling
10577 PNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup.
10583 also affects the iASL compiler constant folding. (Note: as per below, the
10588 consistently. The internal object copy operation now always copies the
10590 to a newly allocated buffer, regardless of whether the source object is
10593 Fixed a problem with the FromBCD operator where an implicit result
10594 conversion was improperly performed while storing the result to the
10596 operand. Since this is an "explicit conversion" operator, the implicit
10597 conversion should never be performed on the output.
10599 Fixed a problem with the CopyObject operator where a copy to an existing
10600 named object did not always completely overwrite the existing object
10602 at name. Specifically, a buffer-to-buffer copy did not delete the
10611 shown below. These are the code and data sizes for the acpica.lib
10613 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10614 any ACPI driver or OSPM code. The debug version of the code includes the
10617 that these values will vary depending on the efficiency of the compiler
10619 the compiler options used during generation.
10637 Fixed a problem with large package objects: if the static length of the
10638 package is greater than 255, the "variable length package" opcode is
10639 emitted. Previously, this caused an error. This requires an update to the
10653 Fixed three cases in the interpreter where an "index" argument to an ASL
10654 function was still (internally) 32 bits instead of the required 64 bits.
10655 This was the Index argument to the Index, Mid, and Match operators.
10660 libraries. All references to the C library strupr function have been
10662 from the headers.
10664 Completed the deployment of static functions/prototypes. All prototypes
10666 the static attribute have been moved from the headers to the owning C
10669 Implemented an extract option (-e) for the AcpiBin utility (AML binary
10670 utility). This option allows the utility to extract individual ACPI
10672 from the output of AcpiDmp. It provides the same functionality of the
10673 acpixtract.pl perl script without the worry of setting the correct perl
10676 the Linux/Unix environment (but should be soon).
10678 Updated and fixed the table dump option for AcpiBin (-d). This option
10679 converts a single ACPI table to a hex/ascii file, similar to the output
10684 shown below. These are the code and data sizes for the acpica.lib
10686 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10687 any ACPI driver or OSPM code. The debug version of the code includes the
10690 that these values will vary depending on the efficiency of the compiler
10692 the compiler options used during generation.
10704 Disassembler fix: Added a check to ensure that the table length found in
10705 the
10706 ACPI table header within the input file is not longer than the actual
10719 The interpreter now issues a warning whenever executable code at the
10721 level is detected during ACPI table load. This will give some idea of the
10727 Enhanced package object output for the debug object. Package objects are
10731 Enhanced miscellaneous object output for the debug object. Any object can
10732 now be written to the debug object (for example, a device object can be
10733 written, and the type of the object will be displayed.)
10736 the
10737 core subsystem and the iASL compiler.
10739 The number of "long" lines (> 80 chars) within the source has been
10743 prototyped (even static functions) and the formatting is consistent.
10750 shown below. These are the code and data sizes for the acpica.lib
10752 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10753 any ACPI driver or OSPM code. The debug version of the code includes the
10756 that these values will vary depending on the efficiency of the compiler
10758 the compiler options used during generation.
10771 Fixed a problem with the resource descriptor generation/support. For the
10772 ResourceSourceIndex and the ResourceSource fields, both must be present,
10774 both must be not present - can't have one without the other.
10776 The compiler now returns non-zero from the main procedure if any errors
10778 occurred during the compilation.
10788 a change to the ACPI specification. In order to match the behavior of
10789 the
10790 other major ACPI implementation, the target buffer is no longer truncated
10792 the source string is smaller than an existing target buffer. This change
10793 requires an update to the ACPI spec, and should eliminate the recent
10798 the general case. Rather than attempt to determine when a method is about
10800 exit, the result of every ASL operator is saved momentarily until the
10802 next ASL operator is executed. Therefore, no matter how the method exits,
10804 enabled with the AcpiGbl_EnableInterpreterSlack flag, and should
10808 Implemented implicit conversion support for the predicate (operand) of
10809 the
10814 Changed the string-to-integer conversion behavior to match the new ACPI
10818 with the first character as the most significant digit, and ending with
10819 the
10820 first non-hexadecimal character or end-of-string." This means that the
10822 non-hex character terminates the conversion and this is the code that was
10825 Fixed a problem where the ObjectType operator would fail (fault) when
10830 Fixed a problem where the While operator used excessive memory by not
10831 properly popping the result stack during execution. There was no memory
10837 caused the method to be invoked, instead of producing a reference object
10838 pointing to the method.
10840 Restructured and simplified the pswalk.c module (AcpiPsDeleteParseTree)
10846 shown below. These are the code and data sizes for the acpica.lib
10848 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10849 any ACPI driver or OSPM code. The debug version of the code includes the
10852 that these values will vary depending on the efficiency of the compiler
10854 the compiler options used during generation.
10866 Fixed a problem with the Return operator with no arguments. Since the AML
10867 grammar for the byte encoding requires an operand for the Return opcode,
10868 the
10872 For tables other than the DSDT, namepath optimization is automatically
10873 disabled. This is because SSDTs can be loaded anywhere in the namespace,
10874 the
10877 Added "ProcessorObj" to the ObjectTypeKeyword list. This object type was
10878 inadvertently omitted from the ACPI specification, and will require an
10879 update to the spec.
10884 However, the scan is simply a brute-force byte compare to ensure all
10885 characters in the file are in the range 0x00 to 0x7F.
10887 Fixed a problem with the CondRefOf operator where the compiler was
10888 inappropriately checking for the existence of the target. Since the point
10890 the operator is to check for the existence of the target at run-time, the
10891 compiler no longer checks for the target existence.
10893 Fixed a problem where errors generated from the internal AML interpreter
10896 Fixed a problem with overly aggressive range checking for the Stall
10897 operator. The valid range (max 255) is now only checked if the operand is
10901 Fixed a problem where control method references within the RefOf,
10907 Fixed and enhanced the "list namespace" option (-ln). This option was
10911 Improved error handling for the Field, IndexField, and BankField
10913 The compiler now cleanly reports and recovers from errors in the field
10916 Fixed a disassembler problem where the optional ResourceDescriptor fields
10926 Fixed a problem where the result of an Index() operator (an object
10927 reference) must increment the reference count on the target object for
10928 the
10929 life of the object reference.
10931 Implemented AML Interpreter and Debugger support for the new ACPI 3.0
10936 Implemented support in the _OSI method for the ACPI 3.0 "Extended Address
10937 Space Descriptor" string, indicating interpreter support for the
10941 Implemented header support for the new ACPI 3.0 FADT flag bits.
10943 Implemented header support for the new ACPI 3.0 PCI Express bits for the
10947 Updated header support for the MADT processor local Apic struct and MADT
10950 Implemented header support for the SRAT and SLIT ACPI tables.
10952 Implemented the -s switch in AcpiExec to enable the "InterpreterSlack"
10957 shown below. These are the code and data sizes for the acpica.lib
10959 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
10960 any ACPI driver or OSPM code. The debug version of the code includes the
10963 that these values will vary depending on the efficiency of the compiler
10965 the compiler options used during generation.
10977 Fixed a problem with the internal 64-bit String-to-integer conversion
10981 Fixed a problem with constant folding where the result of the Index()
10984 a type3 opcode and this will require an update to the ACPI specification.
10986 Disassembler: Implemented support for the TTP, MTP, and TRS resource
10989 the disassembly of the resource descriptor.
10997 Implemented ACPI 3.0 support for implicit conversion within the Match()
11000 of just type integer. Package elements are implicitly converted to the
11002 of the MatchObject. This change aligns the behavior of Match() with the
11003 behavior of the other logical operators (LLess(), etc.) It also requires
11005 errata change to the ACPI specification as this support was intended for
11008 Fixed a problem with the internal implicit "to buffer" conversion.
11010 that are converted to buffers will cause buffer truncation if the string
11012 smaller than the target buffer. Integers that are converted to buffers
11014 not cause buffer truncation, only zero extension (both as per the ACPI
11015 spec.) The problem was introduced when code was added to truncate the
11016 buffer, but this should not be performed in all cases, only the string
11019 Fixed a problem with the Buffer and Package operators where the
11023 stack was not being popped after the execution of these operators,
11027 Fixed a problem with constructs of the form Store(Index(...),...). The
11030 value. This problem was introduced in version 20050114 when the behavior
11032 Store() was modified to restrict the object types that can be used as the
11033 source operand (to match the ACPI specification.)
11035 Reduced excessive stack use within the AcpiGetObjectInfo procedure.
11039 Updated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct.
11042 shown below. These are the code and data sizes for the acpica.lib
11044 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11045 any ACPI driver or OSPM code. The debug version of the code includes the
11048 that these values will vary depending on the efficiency of the compiler
11050 the compiler options used during generation.
11062 Fixed a code generation problem in the constant folding optimization code
11066 Fixed a typechecking problem for the ToBuffer operator. Caused by an
11067 incorrect return type in the internal opcode information table.
11074 Fixed a recently introduced problem with the Global Lock where the
11080 AcpiExec and the iASL compiler enable the cache because they run in user
11083 to enable the local cache.
11085 Fixed an issue in the internal function AcpiUtEvaluateObject concerning
11086 the
11091 in this case and the implicitly returned object is deleted.
11094 methods such as _STA and _INI where the return type is known up front.
11096 Fixed a few issues with the internal convert-to-integer code. It now
11101 and explicit conversion via the ToInteger() operator.
11105 not needed for normal operation and should increase the performance of
11106 the
11111 The AcpiExec source and makefile are included in the Unix/Linux package
11113 the first time.
11116 shown below. These are the code and data sizes for the acpica.lib
11118 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11119 any ACPI driver or OSPM code. The debug version of the code includes the
11122 that these values will vary depending on the efficiency of the compiler
11124 the compiler options used during generation.
11135 Switch/Case support: A warning is now issued if the type of the Switch
11138 generate the warning, and the type is assumed to be an integer. As per
11139 the
11141 the
11145 the switch value. This is an ACPI 3.0 feature, now that LEqual supports
11148 Switch/Case support: The emitted code for the LEqual() comparisons now
11150 the switch value as the first operand, not the second. The case value is
11152 the second operand, and this allows the case value to be implicitly
11153 converted to the type of the switch value, not the other way around.
11157 the control method, not at the global level. This means that there are
11159 36 temps available per-method, not 36 temps per-module as was the case
11161 the earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.)
11167 the core subsystem, iASL compiler, and the utilities.
11171 Fixed an issue with the String-to-Buffer conversion code where the string
11172 null terminator was not included in the buffer after conversion, but
11174 is existing ASL that assumes the string null terminator is included. This
11176 the root of the ACPI_AML_BUFFER_LIMIT regression. This problem was
11177 introduced in the previous version when the code was updated to correctly
11178 set the converted buffer size as per the ACPI specification. The ACPI
11180 is ambiguous and will be updated to specify that the null terminator must
11182 included in the converted buffer. This also affects the ToBuffer() ASL
11185 Fixed a problem with the Mid() ASL/AML operator where it did not work
11192 performed on the OemId and OemTableId table header fields. These fields
11196 Implemented a restriction on the Store() ASL/AML operator to align the
11197 behavior with the ACPI specification. Previously, any object could be
11199 as the source operand. Now, the only objects that may be used are
11202 necessary, the original behavior can be restored by enabling the
11205 Enhanced the optional "implicit return" support to allow an implicit
11207 value from methods that are invoked externally via the AcpiEvaluateObject
11208 interface. This enables implicit returns from the _STA and _INI methods,
11211 Changed the Revision() ASL/AML operator to return the current version of
11212 the
11213 AML interpreter, in the YYYYMMDD format. Previously, it incorrectly
11215 the supported ACPI version (This is the function of the _REV method).
11217 Updated the _REV predefined method to return the currently supported
11221 Implemented batch mode option for the AcpiExec utility (-b).
11224 shown below. These are the code and data sizes for the acpica.lib
11226 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11227 any ACPI driver or OSPM code. The debug version of the code includes the
11230 that these values will vary depending on the efficiency of the compiler
11232 the compiler options used during generation.
11244 ACPI 3.0 support is nearing completion in both the iASL compiler and the
11249 Fixed a problem in the ToDecimalString operator where the resulting
11254 Fixed a problem in the ToHexString operator to allow a maximum 200
11258 Fixed a problem in the internal string-to-buffer and buffer-to-buffer
11260 routine where the length of the resulting buffer was not truncated to the
11261 new size (if the target buffer already existed).
11264 shown below. These are the code and data sizes for the acpica.lib
11266 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11267 any ACPI driver or OSPM code. The debug version of the code includes the
11270 that these values will vary depending on the efficiency of the compiler
11272 the compiler options used during generation.
11284 Implemented the new ACPI 3.0 resource template macros - DWordSpace,
11286 Includes support in the disassembler.
11288 Implemented support for the new (ACPI 3.0) parameter to the Register
11292 Fixed a problem where the _HE resource name for the Interrupt macro was
11295 Implemented check for maximum 255 interrupts in the Interrupt macro.
11297 Fixed a problem with the predefined resource descriptor names where
11298 incorrect AML code was generated if the offset within the resource buffer
11299 was 0 or 1. The optimizer shortened the AML code to a single byte opcode
11300 but did not update the surrounding package lengths.
11302 Changes to the Dma macro: All channels within the channel list must be
11304 the range 0-7. Maximum 8 channels can be specified. BusMaster operand is
11307 Implemented check for maximum 7 data bytes for the VendorShort macro.
11309 The ReadWrite parameter is now optional for the Memory32 and similar
11322 Fixed a problem in the ToInteger, ToBuffer, ToHexString, and
11324 operators where the input operand could be inadvertently deleted if no
11325 conversion was necessary (e.g., if the input to ToInteger was an Integer
11328 Fixed a problem with the ToDecimalString and ToHexString where an
11330 exception code was returned if the resulting string would be > 200 chars.
11333 Fixed a problem with the Concatenate operator where AE_OK was always
11334 returned, even if the operation failed.
11340 shown below. These are the code and data sizes for the acpica.lib
11342 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11343 any ACPI driver or OSPM code. The debug version of the code includes the
11346 that these values will vary depending on the efficiency of the compiler
11348 the compiler options used during generation.
11360 Fixed typechecking for the ObjectType and SizeOf operators. Problem was
11363 Fixed a problem with the ToUUID macro where the upper nybble of each
11372 Fixed a problem in the internal ConvertToInteger routine where new
11384 (via the Index() operator). The previous behavior was to invoke the
11386 conversion rules if an object was already present at the index. The new
11387 behavior is to simply delete any existing object and directly store the
11389 object. Although the ACPI specification seems unclear on this subject,
11391 ACPI implementations behave in this manner. (This is the root of the
11394 Modified the RSDP memory scan mechanism to support the extended checksum
11396 ACPI 2.0 (and above) RSDPs. Note that the search continues until a valid
11400 shown below. These are the code and data sizes for the acpica.lib
11402 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11403 any ACPI driver or OSPM code. The debug version of the code includes the
11406 that these values will vary depending on the efficiency of the compiler
11408 the compiler options used during generation.
11420 Fixed a missing semicolon in the aslcompiler.y file.
11429 ACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register.
11434 object with a value of zero. This support is enabled by setting the
11437 Implemented support for Integer objects for the SizeOf operator. Either
11439 or 8 is returned, depending on the current integer size (32-bit or 64-
11441 depending on the parent table revision).
11443 Fixed a problem in the implementation of the SizeOf and ObjectType
11445 where the operand was resolved to a value too early, causing incorrect
11451 shown below. These are the code and data sizes for the acpica.lib
11453 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11454 any ACPI driver or OSPM code. The debug version of the code includes the
11457 that these values will vary depending on the efficiency of the compiler
11459 the compiler options used during generation.
11473 Implemented all ACPI 3.0 grammar elements in the front-end, including
11476 Implemented the ACPI 3.0 Function() and ToUUID() macros
11478 Fixed a problem in the disassembler where a Scope() operator would not be
11479 emitted properly if the target of the scope was in another table.
11485 evaluation to test/verify the following areas. Other suggestions are
11486 welcome. This will result in an increase in the frequency of releases and
11487 the number of bug fixes in the next few months.
11495 - External interfaces to the ACPI subsystem
11502 AcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the
11504 field within the non-aligned ACPI generic address structure.
11506 Fixed a problem in the Increment and Decrement operators where incorrect
11507 operand resolution could result in the inadvertent modification of the
11508 original integer when the integer is passed into another method as an
11509 argument and the arg is then incremented/decremented.
11511 Fixed a problem in the FromBCD operator where the upper 32-bits of a 64-
11515 Fixed a problem in the ToDecimal operator where the length of the
11517 string could be set incorrectly too long if the input operand was a
11521 Fixed a problem in the Logical operators (LLess, etc.) where a NULL byte
11526 Added a check for string overflow (>200 characters as per the ACPI
11527 specification) during the Concatenate operator with two string operands.
11530 shown below. These are the code and data sizes for the acpica.lib
11532 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11533 any ACPI driver or OSPM code. The debug version of the code includes the
11536 that these values will vary depending on the efficiency of the compiler
11538 the compiler options used during generation.
11551 Allow the use of the ObjectType operator on uninitialized Locals and Args
11552 (returns 0 as per the ACPI specification).
11554 Fixed a problem where the compiler would fault if there was a syntax
11556 in the FieldName of all of the various CreateXXXField operators.
11558 Disallow the use of lower case letters within the EISAID macro, as per
11559 the
11560 ACPI specification. All EISAID strings must be of the form "UUUNNNN"
11570 Implemented support for the ACPI 3.0 Timer operator. This ASL function
11574 implement the ACPI 3.0 Timer operator. This allows the host OS to
11576 the timer with the best clock available. Also, it keeps the core
11578 out of the clock handling business, since the host OS (usually) performs
11582 functions use a 64-bit address which is part of the packed ACPI Generic
11583 Address Structure. Since the structure is non-aligned, the alignment
11585 are now used to extract the address to a local variable before use.
11587 Fixed a problem where the ToInteger operator assumed all input strings
11593 Fixed a problem where the string length in the string object created as a
11594 result of the internal ConvertToString procedure could be incorrect. This
11595 potentially affected all implicit conversions and also the
11599 Fixed two problems in the ToString operator. If the length parameter was
11600 zero, an incorrect string object was created and the value of the input
11603 Fixed a problem where the optional ResourceSource string in the
11607 Simplified the interfaces to the internal division functions, reducing
11612 shown below. These are the code and data sizes for the acpica.lib
11614 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11615 any ACPI driver or OSPM code. The debug version of the code includes the
11618 that these values will vary depending on the efficiency of the compiler
11620 the compiler options used during generation.
11632 Implemented support for the ACPI 3.0 Timer operator.
11634 Fixed a problem where the Default() operator was inadvertently ignored in
11636 Switch/Case block. This was a problem in the translation of the Switch
11643 Fixed a problem with code generation for the ElseIf operator where the
11644 translated Else...If parse tree was improperly constructed leading to the
11652 Fixed a problem with the implementation of the LNot() operator where
11654 was not returned for the TRUE case. Changed the code to return Ones
11662 initialized properly -- Now zero the entire buffer in this case where the
11665 Changed the interface to AcpiOsSleep from (UINT32 Seconds, UINT32
11676 Added support for the DSDT in AcpiTbFindTable. This allows the
11677 DataTableRegion() operator to access the local copy of the DSDT.
11680 shown below. These are the code and data sizes for the acpica.lib
11682 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11683 any ACPI driver or OSPM code. The debug version of the code includes the
11686 that these values will vary depending on the efficiency of the compiler
11688 the compiler options used during generation.
11700 Fixed a problem with constant folding and the LNot operator. LNot was
11701 returning 1 in the TRUE case, not Ones as per the ACPI specification.
11703 could result in the generation of an incorrect folded/reduced constant.
11706 longer occurs if such a comment is at the very end of the input ASL
11710 Implemented the "-r" option to override the Revision in the table header.
11711 The initial use of this option will be to simplify the evaluation of the
11723 - Implemented support for implicit object conversion in the non-numeric
11727 the second operand is implicitly converted on the fly to match the type
11729 the first operand. For example:
11735 The data type of Source1 dictates the required type of Source2. Source2
11737 implicitly converted if necessary to match the type of Source1.
11739 - Updated and corrected the behavior of the string conversion support.
11741 rules concerning conversion of buffers to strings (according to the ACPI
11758 - Fixed a problem in AcpiNsGetPathnameLength where the returned length
11760 one byte too short in the case of a node in the root scope. This could
11765 shown below. These are the code and data sizes for the acpica.lib
11767 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11768 any ACPI driver or OSPM code. The debug version of the code includes the
11771 that these values will vary depending on the efficiency of the compiler
11773 the compiler options used during generation.
11793 Designed and implemented support within the AML interpreter for the so-
11794 called "implicit return". This support returns the result of the last
11796 operation within a control method, in the absence of an explicit Return()
11798 explicitly supported by the ASL language. It is optional support that
11800 be enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag.
11802 Removed support for the PCI_Config address space from the internal low
11807 the PCI bus number and segment number were not supported. There are
11808 separate interfaces for PCI configuration space access because of the
11813 shown below. These are the code and data sizes for the acpica.lib
11815 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11816 any ACPI driver or OSPM code. The debug version of the code includes the
11819 that these values will vary depending on the efficiency of the compiler
11821 the compiler options used during generation.
11833 Fixed a problem where constants in ASL expressions at the root level (not
11835 generation. This problem was introduced in the 20040715 release.
11843 Restructured the internal HW GPE interfaces to pass/track the current
11846 increase flexibility of the interfaces.
11850 the logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -
11852 as per further clarification to the ACPI specification. Behavior is
11856 Completed a major reduction in CPU stack use for the AcpiGetFirmwareTable
11857 external function. In the 32-bit non-debug case, the stack use has been
11862 whose purpose is to allow the AML interpreter to forgive certain bad AML
11865 Implemented the first use of AcpiGbl_EnableInterpreterSlack in the Field
11867 support code. If enabled, it allows field access to go beyond the end of
11869 region definition if the field is within the region length rounded up to
11870 the
11876 symbols are lowercased by the latest version of the AcpiSrc tool.
11878 The prototypes for the PCI interfaces in acpiosxf.h have been updated to
11883 shown below. These are the code and data sizes for the acpica.lib
11885 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11886 any ACPI driver or OSPM code. The debug version of the code includes the
11889 that these values will vary depending on the efficiency of the compiler
11891 the compiler options used during generation.
11903 Implemented full support for Package objects within the Case() operator.
11911 the
11914 Eliminated extraneous warning for compiler-emitted reserved names of the
11918 within the DefinitionBlock operator.
11927 the
11931 All directory names in the entire source package are lower case, as they
11934 Implemented "Disassemble" command in the AML debugger that will
11939 shown below. These are the code and data sizes for the acpica.lib
11941 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
11942 any ACPI driver or OSPM code. The debug version of the code includes the
11945 that these values will vary depending on the efficiency of the compiler
11947 the compiler options used during generation.
11961 the
11965 All directory names in the entire source package are lower case, as they
11968 Fixed a fault when using the -g or -d<nofilename> options if the FADT was
11971 Fixed an issue with the Windows version of the compiler where later
11973 of Windows place the FADT in the registry under the name "FADT" and not
11974 "FACP" as earlier versions did. This applies when using the -g or -
11980 the Scope() operator could not be optimized if the namepath was a subpath
11982 the current scope path.
11991 support in the RSDP scan code. The original code improperly scanned for
11992 the
11995 is to first obtain the EBDA pointer from within the BIOS data area, then
11996 scan 1K of memory starting at the EBDA pointer. There appear to be few
11998 any machines that place the RSDP in the EBDA, however.
12001 arguments. Obsolete code that was causing the problem was removed.
12003 Found and fixed a problem in the Field Support Code where data could be
12005 not end on an aligned boundary. Merged the read/write "datum length"
12008 Rolled in a couple of changes to the FreeBSD-specific header.
12012 shown below. These are the code and data sizes for the acpica.lib
12014 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
12015 any ACPI driver or OSPM code. The debug version of the code includes the
12018 that these values will vary depending on the efficiency of the compiler
12020 the compiler options used during generation.
12046 Removed AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single
12047 AcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above
12049 the new AcpiEv* calls as appropriate.
12051 ACPI_OS_NAME was removed from the OS-specific headers. The default name
12055 changed by modifying the acconfig.h file.
12060 Run _INI methods on ThermalZone objects. This is against the ACPI
12061 specification, but there is apparently ASL code in the field that has
12067 Added a sleep simulation command to the AML debugger to test sleep code.
12070 shown below. These are the code and data sizes for the acpica.lib
12072 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
12073 any ACPI driver or OSPM code. The debug version of the code includes the
12076 that these values will vary depending on the efficiency of the compiler
12078 the compiler options used during generation.
12092 Completed a major overhaul of the GPE handling within ACPI CA. There are
12104 have been specifically enabled for wake via the AcpiEnableGpe interface
12112 especially useful for the drivers for the button devices mentioned above.
12114 Completed restructuring of the ACPI CA initialization sequence so that
12117 and the _PRW methods are executed. This will prevent errors when the
12121 GPE enable/disable no longer reads the GPE enable register. We now keep
12122 the
12123 enable info for runtime and wake separate and in the GPE_EVENT_INFO. We
12124 thus no longer depend on the hardware to maintain these bits.
12126 Always clear the wake status and fixed/GPE status bits before sleep, even
12129 Improved the AML debugger output for displaying the GPE blocks and their
12132 Added new strings for the _OSI method, of the form "Windows 2001 SPx"
12136 Fixed a problem where the physical address was incorrectly calculated
12138 the Load() operator was used to directly load from an Operation Region
12147 Added ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for
12148 consistency with the other fields returned.
12150 Shrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such
12151 structure for each GPE in the system, so the size of this structure is
12154 CPU stack requirement reduction: Cleaned up the method execution and
12157 copying the various method parameters over and over again.
12159 In evregion.c: Correctly exit and reenter the interpreter region if and
12166 Notes for updating drivers for the new GPE support. The following
12170 GPEs: (This information will be added to the ACPI CA Programmer
12173 1) AcpiInstallGpeHandler no longer automatically enables the GPE, you
12177 before enabling the GPE. Also, this interface will automatically disable
12178 the GPE if it is currently enabled.
12195 For all other devices that have _PRWs, we automatically set the GPE type
12197 ACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled.
12201 to allow the user to pick the wake devices.
12205 shown below. These are the code and data sizes for the acpica.lib
12207 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
12208 any ACPI driver or OSPM code. The debug version of the code includes the
12211 that these values will vary depending on the efficiency of the compiler
12213 the compiler options used during generation.
12231 parameter was incorrectly applying the "implicit conversion rules" during
12232 the store. From the ACPI specification: "If the target is a method local
12234 argument (LocalX or ArgX), no conversion is performed and the result is
12235 stored directly to the target". The new behavior is to disable implicit
12238 Changed the behavior of the _PRW method scan to ignore any and all errors
12239 returned by a given _PRW. This prevents the scan from aborting from the
12242 Moved the runtime configuration parameters from the global init procedure
12244 static variables in acglobal.h. This will allow the host to override the
12248 shown below. These are the code and data sizes for the acpica.lib
12250 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
12251 any ACPI driver or OSPM code. The debug version of the code includes the
12254 that these values will vary depending on the efficiency of the compiler
12256 the compiler options used during generation.
12273 Fixed a scoping problem in the disassembler that occurs when the type of
12274 the
12280 out automatically so that the resulting file can be recompiled without
12289 Implemented support for "wake" GPEs via interaction between GPEs and the
12296 believe this has been the cause of thousands of "spurious" GPEs on some
12299 This new GPE behavior is can be reverted to the original behavior (enable
12303 properly. The proper scope within the namespace was not initialized
12304 (transferred to the target of the aliased method) before executing the
12307 Fixed a potential race condition on internal object deletion on the
12325 shown below. These are the code and data sizes for the acpica.lib
12327 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
12328 any ACPI driver or OSPM code. The debug version of the code includes the
12331 that these values will vary depending on the efficiency of the compiler
12333 the compiler options used during generation.
12348 Fixed a problem where errors occurring during the parse phase of control
12350 installed in the namespace were not deleted. This caused all subsequent
12351 invocations of the method to return the AE_ALREADY_EXISTS exception.
12355 if the method attempts to create namespace objects. (The root of the
12358 Implemented support for the predefined _OSI "internal" control method.
12363 This feature will allow "other" operating systems to execute the fully
12364 tested, "Windows" code path through the ASL code
12371 the
12372 CPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage
12376 Fixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the
12380 defined on the machine.
12389 shown below. These are the code and data sizes for the acpica.lib
12391 by the Microsoft Visual C++ 6.0 compiler, and these values do not include
12392 any ACPI driver or OSPM code. The debug version of the code includes the
12395 that these values will vary depending on the efficiency of the compiler
12397 the compiler options used during generation.
12408 Fixed an array size problem for FreeBSD that would cause the compiler to
12417 Implemented execution of _SxD methods for Device objects in the
12420 Fixed calls to _SST method to pass the correct arguments.
12424 Check for End-Of-Buffer failure case in the WalkResources interface.
12427 structures to the beginning of the file.
12435 Fixed a couple of possible memory leaks in the Namespace manager.
12445 Completed investigation and implementation of the call-by-reference
12449 fail if the store occurs within a different method than the method that
12450 created the package.
12452 Fixed a problem where the ToDecimal operator could return incorrect
12455 Fixed a problem where the CopyObject operator could fail on some of the
12459 Improved the output of the Debug object to display buffer, package, and
12462 Fixed a problem where constructs of the form "RefOf (ArgX)" did not
12464 the expected result.
12466 Added permanent ACPI_REPORT_ERROR macros for all instances of the
12474 The purpose of this release is primarily to update the copyright years in
12481 the
12484 Reintroduced the definition of APIC_HEADER in actbl.h
12492 Fixed a problem introduced in December that disabled the correct
12502 Changed the initialization of Operation Regions during subsystem
12503 init to perform two entire walks of the ACPI namespace; The first
12504 to initialize the regions themselves, the second to execute the
12509 the object reference count, and not create a new copy of the
12510 object if the Local1 is uninitialized.
12512 Implemented support for the _SST reserved method during sleep
12515 Implemented support to clear the SLP_TYP and SLP_EN bits when
12518 When sleeping, clear the wake status only if SleepState is not S5.
12524 could be returned if the requested table has not been loaded.
12526 Within the support for IRQ resources, restructured the handling of
12527 the active and edge/level bits.
12532 Improved error messages for the cases where the ACPI mode could
12536 sizes are shown below. These are the code and data sizes for the
12537 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
12539 debug version of the code includes the debug output trace
12541 these values will vary depending on the efficiency of the compiler
12542 and the compiler options used during generation.
12553 Implemented a fix for the iASL disassembler where a bad index was
12566 Fixed a problem with the Field support code where an access can
12567 occur beyond the end-of-region if the field is non-aligned but
12568 extends to the very end of the parent region (resulted in an
12573 the PM1 registers were not being initialized properly.
12576 Processor objects. Although this is currently not part of the
12577 ACPI specification, there is existing ASL code that depends on the
12581 the various types of internal descriptors. Guards against null
12584 Implemented and deployed a GetNodeName function to extract the 4-
12585 character namespace node name. This function simplifies the debug
12589 Implemented and deployed the ACPI_FORMAT_UINT64 helper macro to
12590 simplify the debug and error output of 64-bit integers. This
12591 macro replaces the HIDWORD and LODWORD macros for dumping these
12594 Updated the implementation of the Stall() operator to only call
12595 AcpiOsStall(), and also return an error if the operand is larger
12596 than 255. This preserves the required behavior of not
12597 relinquishing the processor, as would happen if AcpiOsSleep() was
12600 Constructs of the form "Store(LocalX,LocalX)" where LocalX is not
12606 to the GPE dispatch handler. This value is only used for error
12608 the GPE dispatch code.
12611 sizes are shown below. These are the code and data sizes for the
12612 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
12615 debug version of the code includes the debug output trace
12617 these values will vary depending on the efficiency of the compiler
12618 and the compiler options used during generation.
12630 Updated the iASL compiler to return an error if the operand to the
12640 Fixed a problem with Index Fields where the index was not
12641 incremented for fields that require multiple writes to the
12642 index/data registers (Fields that are wider than the data
12646 beyond the end-of-field if the field was larger than the access
12647 granularity and therefore required multiple writes to complete the
12648 request. An extra write beyond the end of the field could happen
12652 would incorrectly be returned if the width of the Data Register
12653 was larger than the specified field access width.
12656 operation. Implemented full support for the "DdbHandle" object
12657 throughout the ACPI CA subsystem.
12659 Implemented full support for the MADT and ECDT tables in the ACPI
12661 consumed by ACPI CA, the header definitions are useful for ACPI
12664 Integrated resource descriptor fixes posted to the Linux ACPI
12670 sizes are shown below. These are the code and data sizes for the
12671 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
12673 debug version of the code includes the debug output trace
12675 these values will vary depending on the efficiency of the compiler
12676 and the compiler options used during generation.
12688 Implemented detection of non-ASCII characters within the input
12690 files early in the compile, with an informative error message.
12692 Fixed a problem where the disassembler would fault if the output
12693 filename could not be generated or if the output file could not be
12702 Found and fixed a longstanding problem with the late execution of
12703 the various deferred AML opcodes (such as Operation Regions,
12704 Buffer Fields, Buffers, and Packages). If the name string
12705 specified for the name of the new object placed the object in a
12706 scope other than the current scope, the initialization/execution
12707 of the opcode failed. The solution to this problem was to
12708 implement a mechanism where the late execution of such opcodes
12709 does not attempt to lookup/create the name a second time in an
12710 incorrect scope. This fixes the "region size computed
12724 sizes are shown below. These are the code and data sizes for the
12725 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
12727 debug version of the code includes the debug output trace
12729 these values will vary depending on the efficiency of the compiler
12730 and the compiler options used during generation.
12743 Fixed the AcpiOsSleep implementation in osunixxf.c to pass the
12775 Fix To/FromBCD, eliminating the need for an arch-specific #define.
12777 Do not acquire a semaphore in the S5 shutdown path.
12796 compatibility and also cleans up the code to a significant degree.
12808 a new ID assigned to it. Eventually, (after 64k calls), the Owner
12809 ID UINT16 would wraparound so that the ID would be the same as the
12810 caller's and the called method would delete the caller's
12814 aborted due to a run-time exception. Output includes the exact
12815 AML instruction that caused the method abort, a dump of the method
12816 locals and arguments at the time of the abort, and a trace of all
12819 Modified the interpreter to allow the creation of buffers of zero
12820 length from the AML code. Implemented new code to ensure that no
12824 the AML attempts to create a zero-length buffer.
12826 Implemented a workaround for the "leading asterisk issue" in
12827 _HIDs, _UIDs, and _CIDs in the AML interpreter. One leading
12835 required a change to the external interface in order to pass an
12836 ACPI_BUFFER object as a parameter since the _CID list is of
12839 Fixed a problem with the new AE_SAME_HANDLER exception where
12843 sizes are shown below. These are the code and data sizes for the
12844 acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
12846 debug version of the code includes the debug output trace
12848 these values will vary depending on the efficiency of the compiler
12849 and the compiler options used during generation.
12861 Fixed a bug in which we would reinitialize the ACPI interrupt
12862 after it was already working, thus disabling all ACPI and the IRQs
12863 for any other device sharing the interrupt. (Thanks to Stian
12875 statements were not handled correctly by the compiler, resulting
12877 in both the ASL parser and the code generator.
12892 Changed the subsystem initialization sequence to hold off
12893 installation of address space handlers until the hardware has been
12894 initialized and the system has entered ACPI mode. This is because
12895 the installation of space handlers can cause _REG methods to be
12896 run. Previously, the _REG methods could potentially be run before
12900 notify handler installation. There were some problems with the
12901 reference count mechanism caused by the fact that the handler
12904 Fixed a reported problem where reference counts within the
12909 issue during subsystem termination. Restructured the table data
12910 structures to simplify the linked lists and the related code.
12912 Fixed a problem where the table ID associated with secondary
12913 tables (SSDTs) was not being propagated into the namespace objects
12917 Updated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE
12918 type as the length parameter (instead of UINT32).
12924 systems that do this in the ASL.
12926 Fixed a reported problem where the internal DeleteNode function
12927 was incorrectly handling the case where a namespace node was the
12928 first in the parent's child list, and had additional peers (not
12929 the only child, but first in the list of children.)
12932 below. These are the code and data sizes for the acpica.lib
12933 produced by the Microsoft Visual C++ 6.0 compiler, and these
12935 version of the code includes the debug output trace mechanism and
12937 vary depending on the efficiency of the compiler and the compiler
12957 Fixed a problem in the generation of the C source code files (AML
12958 is emitted in C source statements for BIOS inclusion) where the
12959 Ascii dump that appears within a C comment at the end of each line
12960 could cause a compile time error if the AML sequence happens to
12970 Support for big-endian systems has been implemented. Most of the
12971 support has been invisibly added behind big-endian versions of the
12975 AcpiHwClearGpeBlock() where an incorrect offset was passed to the
12977 actually eliminated from the low level read/write routines because
12981 the removal of a fixed event handler.
12990 (2.5) Return whether we handled the interrupt in our IRQ handler.
12991 (Linux ISRs no longer return void, so we can propagate the handler
12992 return value from the ACPI CA core back to the OS.)
13012 Fixed a problem where the error message "Failed to acquire
13013 semaphore" would appear during operations on the embedded
13017 below. These are the code and data sizes for the acpica.lib
13018 produced by the Microsoft Visual C++ 6.0 compiler, and these
13020 version of the code includes the debug output trace mechanism and
13022 vary depending on the efficiency of the compiler and the compiler
13045 The FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only
13046 fields that are used to determine the GPE block lengths. The
13047 REGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address
13048 structures are ignored. This is per the ACPI specification but it
13050 (the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128).
13052 In the SCI interrupt handler, removed the read of the PM1_CONTROL
13053 register to look at the SCI_EN bit. On some machines, this read
13055 in fact be the cause of slow battery status response on some
13059 could cause the premature deletion of the object. This was seen
13060 during execution of the battery _BIF method on some systems,
13067 below. These are the code and data sizes for the acpica.lib
13068 produced by the Microsoft Visual C++ 6.0 compiler, and these
13070 version of the code includes the debug output trace mechanism and
13072 vary depending on the efficiency of the compiler and the compiler
13094 Expand the mem= cmdline to allow the specification of reserved and
13114 Added support for the _PDC reserved name.
13123 Added a check for constructs of the form: Store (Local0, Local0)
13126 do anything anyway, the new prototype behavior will ignore this
13127 error. This is a case where we can relax the strict checking in
13128 the interpreter in the name of compatibility.
13133 The AcpiSrc Source Conversion Utility has been released with the
13134 Linux package for the first time. This is the utility that is
13135 used to convert the ACPI CA base source code to the Linux version.
13149 the
13150 former now also includes the latter, acpiphp.h only needs the one,
13173 Implemented support to obtain SSDTs from the Windows registry if
13182 Changed the behavior of the internal Buffer-to-String conversion
13183 function. The current ACPI specification states that the contents
13184 of the buffer are "converted to a string of two-character
13187 implementations (although the behavior was not defined in the ACPI
13188 1.0 specification). The new behavior simply copies data from the
13189 buffer to the string until a null character is found or the end of
13190 the buffer is reached. The new String object is always null
13191 terminated. This problem was seen during the generation of _BIF
13193 type, etc. This will also require an errata to the ACPI
13203 below. These are the code and data sizes for the acpica.lib
13204 produced by the Microsoft Visual C++ 6.0 compiler, and these
13206 version of the code includes the debug output trace mechanism and
13208 vary depending on the efficiency of the compiler and the compiler
13238 Several changes have been made to the source code translation
13239 utility that generates the Linux Code in order to make the code
13243 with the Linux coding style.
13245 Removed the non-Linux SourceSafe module revision number from each
13249 Doubled the number of symbols that are lowercased.
13255 Some C macros whose only purpose is to allow the generation of 16-
13256 bit code are now completely removed in the Linux code, increasing
13266 Fixed a problem where the creation of a zero-length AML Buffer
13273 Fixed a problem where a user buffer (passed in to the external
13274 ACPI CA interfaces) could be overwritten if the buffer was too
13275 small to complete the operation, causing memory corruption.
13277 Fixed a problem in the Buffer-to-String conversion code where a
13278 string of length one was always returned, regardless of the size
13279 of the input Buffer object.
13281 Removed the NATIVE_CHAR data type across the entire source due to
13285 below. These are the code and data sizes for the acpica.lib
13286 produced by the Microsoft Visual C++ 6.0 compiler, and these
13288 version of the code includes the debug output trace mechanism and
13290 vary depending on the efficiency of the compiler and the compiler
13307 cause corruption of the DSDT if the object type being stored was
13308 the same as the target object type and the length of the object
13309 being stored was equal to or smaller than the original (existing)
13311 buffers if the _BIF method modified the buffer on the fly.
13315 Package declaration. This was caused by the deferred parsing of
13316 the control method and thus the deferred creation of the internal
13317 method object. The solution to this problem was to create the
13318 internal method object at the moment the method is encountered in
13319 the first pass - so that subsequent references to the method will
13320 able to obtain the required parameter count and thus properly
13321 parse the method invocation. This problem presented itself as an
13322 AE_AML_INTERNAL during the pass 1 parse phase during table load.
13324 Fixed a problem where the internal String object copy routine did
13325 not always allocate sufficient memory for the target String object
13330 Implemented a new function for the evaluation of namespace objects
13331 that allows the specification of the allowable return object
13333 object of one or more specific objects returned from the
13345 method via the AML debugger. This feature is useful for debugging
13350 below. These are the code and data sizes for the acpica.lib
13351 produced by the Microsoft Visual C++ 6.0 compiler, and these
13353 version of the code includes the debug output trace mechanism and
13355 vary depending on the efficiency of the compiler and the compiler
13369 Descriptors. If specified in the ASL, the optional "Resource
13371 the correct location within the AML resource descriptor, creating
13386 or Arg was not copied to a new object during the store - the
13387 object pointer was simply copied to the Local/Arg. This caused
13388 all subsequent operations on the Local/Arg to also affect the
13389 original source of the store operation.
13392 was not completed properly if the Local/Arg contained a reference
13397 Fixed a problem where the internal object copy routine would cause
13398 a protection fault if the object being copied was a Package and
13402 Fixed a problem with the GPE initialization that resulted from an
13403 ambiguity in the ACPI specification. One section of the
13404 specification states that both the address and length of the GPE
13405 block must be zero if the block is not supported. Another section
13406 implies that only the address need be zero if the block is not
13407 supported. The code has been changed so that both the address and
13408 the length must be non-zero to indicate a valid GPE block (i.e.,
13409 if either the address or the length is zero, the GPE block is
13413 below. These are the code and data sizes for the acpica.lib
13414 produced by the Microsoft Visual C++ 6.0 compiler, and these
13416 version of the code includes the debug output trace mechanism and
13418 vary depending on the efficiency of the compiler and the compiler
13433 sonypi) will be able to serialize access to the EC.
13439 ASM and C (the -i switch). This simplifies BIOS development by
13441 declarations for the symbols that are created within the
13457 Fixed a problem where the target of the Index() operator was not
13458 correctly constructed if the source object was a package. This
13459 problem has not been detected because the use of a target operand
13462 Fixed a problem with the Index() operator where an attempt was
13463 made to delete the operand objects twice.
13466 twice during execution of the CondRefOf() operator if the target
13469 Implemented the first of perhaps several internal create object
13471 consolidates duplicated code wherever the object is created, thus
13472 shrinking the size of the subsystem.
13476 are displayed (with the error) as the call stack is unwound - thus
13479 Fixed a problem introduced in the 10/02 release that caused
13483 the 10/02 release was attempting to fix a memory leak (albeit
13487 below. These are the code and data sizes for the acpica.lib
13488 produced by the Microsoft Visual C++ 6.0 compiler, and these
13490 version of the code includes the debug output trace mechanism and
13492 vary depending on the efficiency of the compiler and the compiler
13505 Changed the implementation of the ACPI semaphores to use down()
13506 instead of down_interruptable(). It is important that the
13508 Methods must run to completion, or the system may be left in an
13518 Changed the default location of output files. All output files
13519 are now placed in the current directory by default instead of in
13520 the directory of the source file. This change may affect some
13521 existing makefiles, but it brings the behavior of the compiler in
13522 line with other similar tools. The location of the output files
13523 can be overridden with the -p command line switch.
13536 Implemented support for the ACPI 2.0 SMBus Operation Regions.
13537 This includes the early detection and handoff of the request to
13538 the SMBus region handler (avoiding all of the complex field
13539 support code), and support for the bidirectional return packet
13540 from an SMBus write operation. This paves the way for the
13543 Fixed a problem where the semaphore WAIT_FOREVER constant was
13544 defined as 32 bits, but must be 16 bits according to the ACPI
13545 specification. This had the side effect of causing ASL
13546 Mutex/Event timeouts even though the ASL code requested a wait
13547 forever. Changed all internal references to the ACPI timeout
13548 parameter to 16 bits to prevent future problems. Changed the name
13552 below. These are the code and data sizes for the acpica.lib
13553 produced by the Microsoft Visual C++ 6.0 compiler, and these
13555 version of the code includes the debug output trace mechanism and
13557 vary depending on the efficiency of the compiler and the compiler
13575 Added support for the SMBBlockProcessCall keyword (ACPI 2.0)
13577 Implemented support for the disassembly of all SMBus protocol
13590 Removed code added in the previous release that inserted nodes
13591 into the namespace in alphabetical order. This caused some side-
13592 effects on various machines. The root cause of the problem is
13593 still under investigation since in theory, the internal ordering
13594 of the namespace nodes should not matter.
13597 Enhanced error reporting for the case where a named object is not
13599 (name reference) of the object that was not found is displayed in
13602 Note: as a result of the overhaul of the namespace object types in
13603 the previous release, the namespace nodes for the predefined
13604 scopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE
13605 instead of ACPI_TYPE_ANY. This simplifies the namespace
13606 management code but may affect code that walks the namespace tree
13610 below. These are the code and data sizes for the acpica.lib
13611 produced by the Microsoft Visual C++ 6.0 compiler, and these
13613 version of the code includes the debug output trace mechanism and
13615 vary depending on the efficiency of the compiler and the compiler
13628 Fixed a problem introduced in the previous release where the
13630 /proc. This was related to the scope type change described above.
13635 Implemented the -g option to get all of the required ACPI tables
13636 from the registry and save them to files (Windows version of the
13637 compiler only.) The required tables are the FADT, FACS, and DSDT.
13648 Implemented a restriction on the Scope operator that the target
13649 must already exist in the namespace at the time the operator is
13652 create a new object. This changes the previous behavior where the
13653 interpreter would create the name if not found. This new behavior
13654 correctly enables the search-to-root algorithm during namespace
13655 lookup of the target name. Because of this upsearch, this fixes
13656 the known Compaq _SB_.OKEC problem and makes both the AML
13660 Completed a major overhaul of the internal ACPI object types for
13661 the ACPI Namespace and the associated operand objects. Many of
13662 these types had become obsolete with the introduction of the two-
13663 pass namespace load. This cleanup simplifies the code and makes
13664 the entire namespace load mechanism much clearer and easier to
13668 diagnose scoping issues. The old scope name as well as the new
13673 Cleaned up the namespace dump code, removed obsolete code.
13675 All string output (for all namespace/object dumps) now uses the
13679 Fixed some issues with constants in the 64-bit version of the
13685 EC Driver: No longer attempts to acquire the Global Lock at
13692 2 opcodes outside of a control method. This means that the
13693 "executable" operators (versus the "namespace" operators) cannot
13694 be used at the table level; they can only be used within a control
13697 Implemented the restriction on the Scope() operator where the
13698 target must already exist in the namespace at the time the
13701 object. This makes the iASL compiler compatible with other ACPI
13702 implementations and makes the Scope() implementation adhere to the
13705 Fixed a problem where namepath optimization for the Alias operator
13706 was optimizing the wrong path (of the two namepaths.) This caused
13710 incorrectly generated for names like "_SB" when the trailing
13711 underscore is not used in the original ASL.
13713 Fixed a problem where the reserved name check did not handle
13715 the NamePath was examined instead of the last NameSeg.
13726 string did not always set the string length properly in the String
13729 Fixed a reported problem with the ToString operator where the
13730 behavior was identical to the ToHexString operator instead of just
13733 Fixed a problem where CopyObject and the other "explicit"
13734 conversion operators were not updating the internal namespace node
13735 type as part of the store operation.
13738 where the original object was not deleted if it was converted to a
13742 lookups. Common procedure generates and prints the lookup name as
13743 well as the formatted status.
13745 Completed implementation of a new design for the Alias support
13746 within the namespace. The existing design did not handle the case
13747 where a new object was assigned to one of the two names due to the
13748 use of an explicit conversion operator, resulting in the two names
13750 the Alias name to the original name node - not to the object.
13751 This results in a level of indirection that must be handled in the
13755 below. These are the code and data sizes for the acpica.lib
13756 produced by the Microsoft Visual C++ 6.0 compiler, and these
13758 version of the code includes the debug output trace mechanism and
13760 depending on the efficiency of the compiler and the compiler
13801 Fixed a reported problem with reference chaining (via the Index()
13802 and RefOf() operators) in the ObjectType() and SizeOf() operators.
13803 The definition of these operators includes the dereferencing of
13804 all chained references to return information on the base object.
13806 Fixed a problem with stores to indexed package elements - the
13807 existing code would not complete the store if an "implicit
13808 conversion" was not performed. In other words, if the existing
13809 object (package element) was to be replaced completely, the code
13812 Relaxed typechecking on the ASL "Scope" operator to allow the
13814 Buffer, in addition to the scoping object types (Device,
13818 affects both the AML interpreter and the iASL compiler. Below is
13825 Fixed some reported problems with 64-bit integer support in the
13834 Ensure that the SCI has the proper polarity and trigger, even on
13835 systems that do not have an interrupt override entry in the MADT.
13844 file. Move checking the blacklist to very early. Previously, we
13845 would use ACPI tables, and then halfway through init, check the
13852 Fixed a problem where the typechecking code didn't know that an
13862 If the target of a Scope() operator already exists, it must be an
13865 check has been added to the iASL compiler also.
13867 Tightened up the namespace load to disallow multiple names in the
13869 the same type. (i.e., a lookup was the same as entering a new
13875 Ensure that the ACPI interrupt has the proper trigger and
13880 Make "acpi=off" actually do what it says, and not use the ACPI
13881 interpreter *or* the tables.
13891 optimized to "Method (ABCD)" if the declaration is within the
13892 \_SB_ scope. This optimization is in addition to the named
13893 reference path optimization first released in the previous
13895 for namepaths within the ASL/AML.
13897 If the target of a Scope() operator already exists, it must be an
13901 Implemented a check and warning for unreachable code in the same
13904 Fixed a problem where the listing file was not generated if the
13905 compiler aborted if the maximum error count was exceeded (200).
13907 Fixed a problem where the typechecking of method return values was
13908 broken. This includes the check for a return value when the
13921 contains a reference did not perform the indirect store correctly.
13922 This problem was created during the conversion to the new
13923 reference object model - the indirect store to a method argument
13924 code was not updated to reflect the new model.
13926 Reworked the ACPI mode change code to better conform to ACPI 2.0,
13929 Fixed a problem with the pathname parsing for the carat (^)
13930 prefix. The heavy use of the carat operator by the new namepath
13931 optimization in the iASL compiler uncovered a problem with the AML
13932 interpreter handling of this prefix. In the case where one or
13933 more carats precede a single nameseg, the nameseg was treated as
13934 standalone and the search rule (to root) was inadvertently
13935 applied. This could cause both the iASL compiler and the
13936 interpreter to find the wrong object or to miss the error that
13937 should occur if the object does not exist at that exact pathname.
13939 Found and fixed the problem where the HP Pavilion DSDT would not
13940 load. This was a relatively minor tweak to the table loading code
13941 (a problem caused by the unexpected encounter with a method
13942 invocation not within a control method), but it does not solve the
13943 overall issue of the execution of AML code at the table level.
13947 below. These are the code and data sizes for the acpica.lib
13948 produced by the Microsoft Visual C++ 6.0 compiler, and these
13950 version of the code includes the debug output trace mechanism and
13952 depending on the efficiency of the compiler and the compiler
13983 Reworked the compiler options to make them more consistent and to
13985 sensible letters. This may break some makefiles, so check the
13986 current options list by invoking the compiler with no parameters.
13988 Completed the design and implementation of the ASL namepath
13989 optimization option for the compiler. This option optimizes all
13990 references to named objects to the shortest possible path. The
13992 the "search-to-root" algorithm used by the interpreter. If that
13993 cannot be used (because either the name is not in the search path
13994 or there is a conflict with another object with the same name),
13995 the pathname is optimized using the carat prefix (usually a
13996 shorter string than specifying the entire path from the root.)
13998 Implemented support to obtain the DSDT from the Windows registry
13999 (when the disassembly option is specified with no input file).
14000 Added this code as the implementation for AcpiOsTableOverride in
14001 the Windows OSL. Migrated the 16-bit code (used in the AcpiDump
14002 utility) to scan memory for the DSDT to the AcpiOsTableOverride
14003 function in the DOS OSL to make the disassembler truly OS
14007 When used without an input filename, this option will grab the
14008 DSDT from the local machine, disassemble it, and compile it in one
14012 by any character other than the allowable escapes). This catches
14013 the quoted string error "\_SB_" (which should be "\\_SB_" ).
14015 Also, there are numerous instances in the ACPI specification where
14019 basically the "compatibility mode" because by using this option,
14020 the AML code will come out exactly the same as other ASL
14029 Implemented _OSI support for the disassembler and compiler. _OSI
14030 must be included in the namespace for proper disassembly (because
14031 the disassembler must know the number of arguments.)
14044 code and has been integrated into the iASL compiler (see below) as
14045 well as the single-step disassembly for the AML debugger and the
14046 disassembler for the AcpiDump utility. All ACPI 2.0A opcodes,
14049 producing identical AML when the resulting disassembled ASL file
14050 is recompiled with the same ASL compiler.
14052 Modified the Resource Manager to allow zero interrupts and zero
14053 dma channels during the GetCurrentResources call. This was
14056 Added the AcpiOsRedirectOutput interface to the OSL to simplify
14057 output redirection for the AcpiOsPrintf and AcpiOsVprintf
14061 below. These are the code and data sizes for the acpica.lib
14062 produced by the Microsoft Visual C++ 6.0 compiler, and these
14064 version of the code includes the debug output trace mechanism and
14066 depending on the efficiency of the compiler and the compiler
14079 Fixed a panic in the EC driver (Dominik Brodowski)
14081 Implemented checksum of the R/XSDT itself during Linux table scan
14087 The AML disassembler is integrated into the compiler. The "-d"
14088 option invokes the disassembler to completely disassemble an
14089 input AML file, producing as output a text ASL file with the
14091 source files.) A future enhancement will allow the disassembler
14092 to obtain the BIOS DSDT from the registry under Windows.
14094 Fixed a problem with the VendorShort and VendorLong resource
14097 Implemented a fix for BufferData term in the ASL parser. It was
14101 Fixed a problem where the Ones opcode could get converted to a
14103 was expected. The 64-bit value is now truncated to the correct
14104 size with the correct value.
14115 features. Tables that are not required by the core subsystem
14116 (other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer
14119 each table that is loaded by the subsystem in order to allow the
14120 host to override any table it chooses. Previously, only the DSDT
14124 Fixed a problem with the conversion of internal package objects to
14126 method.) The return buffer length was set to zero instead of the
14127 proper length of the package object.
14129 Fixed a reported problem with the use of the RefOf and DeRefOf
14132 produced by the RefOf operator.
14134 Added additional error messages in the Resource Manager to explain
14137 Split the AcpiEnableSubsystem into two primitives to enable a
14140 AcpiInitializeObjects (flags). The flags parameter remains the
14146 Updated the ACPI utilities module to understand the new style of
14147 fully resolved package objects that are now returned from the core
14148 subsystem. This eliminates errors of the form:
14154 The method evaluation utility uses the new buffer allocation
14157 Added support for ECDT. This allows the use of the Embedded
14159 Controller before the namespace has been fully initialized, which
14162 limited testing was performed of the added functionality.)
14164 Fixed memory leaks in the EC driver.
14168 Eliminated the acpi_evaluate() helper function in utils.c. It is
14170 allocate memory for the return object.
14188 the resource manager code. Originally reported against the ASL
14189 compiler because the code generator now optimizes integers to
14194 Fixed a problem with the Concatenate operator in the AML
14199 returned from the external ACPI interfaces. This means that name
14203 Implemented immediate resolution of the AML Constant opcodes
14205 within the AML stream. This has simplified and reduced the
14206 generated code size of the subsystem by eliminating about 10
14209 the Zero opcode is used as a "placeholder" for unspecified
14214 below. These are the code and data sizes for the acpica.lib
14215 produced by the Microsoft Visual C++ 6.0 compiler, and these
14217 version of the code includes the debug output trace mechanism and
14219 depending on the efficiency of the compiler and the compiler
14239 Fixed a problem where the "_DDN" reserved name was defined to be a
14243 Fixed a problem with the Linux version of the compiler where the
14244 source lines printed with error messages were the wrong lines.
14245 This turned out to be the "LF versus CR/LF" difference between
14246 Windows and Unix. This appears to be the longstanding issue
14249 Fixed a problem with the Linux version of compiler where opcode
14251 slight difference in the output of the Flex tool on Linux versus
14254 Fixed a problem with the Linux compiler where the hex output files
14264 Implemented a workaround to an BIOS bug discovered on the HP
14265 OmniBook where the FADT revision number and the table size are
14267 behavior is to fallback to using only the ACPI 1.0 fields of the
14268 FADT if the table is too small to be a ACPI 2.0 table as claimed
14269 by the revision number. Although this is a BIOS bug, this is a
14270 case where the workaround is simple enough and with no side
14274 Implemented minimum size checks for the fixed-length ACPI tables -
14275 - the FADT and FACS, as well as consistency checks between the
14276 revision number and the table size.
14278 Fixed a reported problem in the table override support where the
14282 Eliminated the use of the AE_AML_ERROR exception and replaced it
14290 below. These are the code and data sizes for the acpica.lib
14291 produced by the Microsoft Visual C++ 6.0 compiler, and these
14293 version of the code includes the debug output trace mechanism and
14295 depending on the efficiency of the compiler and the compiler
14326 Implemented error checking for the string used in the EISAID macro
14327 (Usually used in the definition of the _HID object.) The code now
14328 strictly enforces the PnP format - exactly 7 characters, 3
14331 If a raw string is used in the definition of the _HID object
14332 (instead of the EISAID macro), the string must contain all
14334 of the asterisk.)
14337 most of the name creation operators (Name, Device, Event, Mutex,
14341 Implemented an additional check on the Name operator to emit an
14347 during the cross reference phase has been changed into an error.
14357 Fixed a problem with the output of both acpidump and adump16 where
14358 the indentation of closing parentheses and brackets was not
14360 aligned properly with the parent block.
14369 Added support a new OSL interface that allows the host operating
14371 system software to override the DSDT found in the firmware -
14372 AcpiOsTableOverride. With this interface, the OSL can examine the
14373 version of the firmware DSDT and replace it with a different one
14378 AcpiSetRegister. This was simply an externalization of the
14381 Fixed a regression introduced in the previous build where the
14385 Extended the maximum time (before failure) to successfully enable
14389 below. These are the code and data sizes for the acpica.lib
14390 produced by the Microsoft Visual C++ 6.0 compiler, and these
14392 version of the code includes the debug output trace mechanism and
14394 depending on the efficiency of the compiler and the compiler
14408 free. While 3 out of 4 of our in-house systems work fine, the last
14409 one still hangs when testing the LAPIC timer.
14411 Renamed many files in 2.5 kernel release to omit "acpi_" from the
14425 Added support to allow the compiler to be integrated into the MS
14429 Implemented support for compile-time constant folding for the
14430 Type3, Type4, and Type5 opcodes first defined in the ACPI 2.0
14431 specification. This allows the ASL writer to use expressions
14433 evaluate to constants at compile time and will also simplify the
14435 (evaluated at compile-time.) This increases the size of the
14436 compiler significantly because a portion of the ACPI CA AML
14437 interpreter is included within the compiler in order to pre-
14441 Fixed a problem with the "Unicode" ASL macro that caused the
14442 compiler to fault. (This macro is used in conjunction with the
14445 Implemented an AML opcode optimization to use the Zero, One, and
14446 Ones opcodes where possible to further reduce the size of integer
14447 constants and thus reduce the overall size of the generated AML
14453 Implemented the -qr option to display the current list of ACPI
14454 reserved names known to the compiler.
14456 Implemented the -qc option to display the current list of ASL
14458 therefore be folded at compile time if the operands are constants.
14463 Updated the Programmer's Reference for new interfaces, data types,
14466 Updated the iASL Compiler User Reference to apply new format and
14474 The source code base for the Core Subsystem has been completely
14476 versions. The Lint option files used are included in the
14479 Implemented enhanced status/error checking across the entire
14481 the OSL) are now bubbled up and will abort a running control
14485 Fixed a problem where the per-ACPI-table integer width (32 or 64)
14489 width across the entire ACPI subsystem. Therefore, ACPI CA does
14494 2.0 ACPI FADT caused the table load to fail. Although the
14495 existing ACPI specification is a bit fuzzy on this topic, the new
14496 behavior is to fall back on a ACPI 1.0 field if the corresponding
14497 ACPI 2.0 X field is zero (even though the table revision indicates
14501 Fixed a problem with the SystemMemory operation region handler
14502 where memory was always accessed byte-wise even if the AML-
14505 accessed with the width specified. On systems that do not support
14508 alignment fault within the kernel.
14511 Fixed a problem with the ExtendedIrq resource where only one byte
14512 of the 4-byte Irq field was extracted.
14514 Fixed the AcpiExDigitsNeeded() procedure to support _UID. This
14518 below. These are the code and data sizes for the acpica.lib
14519 produced by the Microsoft Visual C++ 6.0 compiler, and these
14521 version of the code includes the debug output trace mechanism and
14523 depending on the efficiency of the compiler and the compiler
14543 access beyond the end-of-region. Previously, only the field size
14547 object in preparation for compile-time evaluation of the type
14558 used in the declarations of these object types.
14561 1.0, if the field was larger than 32 bits, it was returned as a
14563 the field is returned as a buffer only if the field is larger than
14569 this support, the host OS can now override all ACPI tables with
14572 pointers internally. This required a change to the
14575 Implemented the use of ACPI 2.0 Generic Address Structures for all
14576 GPE, Fixed Event, and PM Timer I/O. This allows the use of memory
14580 tables other than the FADT, FACS, DSDT, and SSDTs), but also does
14581 not validate the table headers of unrecognized tables.
14589 Removed most verbosity from the ACPI_DB_INFO debug level. Only
14593 below. These are the code and data sizes for the acpica.lib
14594 produced by the Microsoft Visual C++ 6.0 compiler, and these
14596 version of the code includes the debug output trace mechanism and
14598 depending on the efficiency of the compiler and the compiler
14614 the Intel "applet" interface are not supported through this. The
14617 transitions will be included in the next version of ospmd.] The
14623 based devices in the ACPI namespace are now dynamically bound
14628 Enhanced PCI IRQ routing to get the proper bus number for _PRT
14634 In the process of adding full MADT support (e.g. IOAPIC) for IA32
14644 Can now shut down the system using "magic sysrq" key.
14652 Implemented a fix for the General Register template Address field.
14656 within the listing output file.
14658 Implemented the ACPI 2.0A restriction on ACPI Table Signatures to
14670 Fixed a problem with AML Fields where the use of the "AccessAny"
14672 or write beyond the end of the parent Operation Region.
14674 Fixed a problem in the SystemMemory Operation Region handler where
14675 an attempt was made to map memory beyond the end of the region.
14676 This was the root cause of the "AE_ERROR" and "AE_NO_MEMORY"
14679 Fixed a problem where the interpreter/namespace "search to root"
14680 algorithm was not functioning for some object types. Relaxed the
14681 internal restriction on the search to allow upsearches for all
14689 Writing to the processor limit interface should now work. "echo 1"
14690 will increase the limit, 2 will decrease, and 0 will reset to the
14706 Fixed a problem where the GPE bit masks were not initialized
14710 code can be generated with either the VPL (variable parameter
14711 list, or "C") convention, or the FPL (fixed parameter list, or
14719 the rewrite
14722 up as the system device.
14745 Suport for the now-obsolete interim 0.71 64-bit ACPI tables has
14746 been removed. All 64-bit platforms should be migrated to the ACPI
14747 2.0 tables. The actbl71.h header has been removed from the source
14750 All C macros defined within the subsystem have been prefixed with
14753 Removed the return value for the two AcpiOsPrint interfaces, since
14754 it is never used and causes lint warnings for ignoring the return
14759 probably a fatal system error, these checks will cause the
14760 immediate abort of the currently executing method or interface.
14762 Fixed a problem where the AcpiSetCurrentResources interface could
14763 fault. This was a side effect of the deployment of the new memory
14766 Fixed a couple of problems with the Global Lock support introduced
14767 in the last major build. The "common" (1.0/2.0) internal FACS was
14768 being overwritten with the FACS signature and clobbering the
14769 Global Lock pointer. Also, the actual firmware FACS was being
14770 unmapped after construction of the "common" FACS, preventing
14771 access to the actual Global Lock field within it. The "common"
14776 below. These are the code and data sizes for the acpica.lib
14777 produced by the Microsoft Visual C++ 6.0 compiler, and these
14779 version of the code includes the debug output trace mechanism and
14781 depending on the efficiency of the compiler and the compiler
14812 Implemented the new compiler restriction on ASL String hex/octal
14817 AML object labels that are output to the optional C and ASM source
14818 are now prefixed with both the ACPI table signature and table ID
14827 ACPI 2.0 support is complete in the entire Core Subsystem and the
14830 simultaneous code and data optimizations throughout the subsystem,
14835 the buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will
14836 be allocated on behalf of the caller. Consolidated all return
14838 buffers will be allocated via the primary OSL allocation interface
14840 If a separate pool is required for these buffers, the caller can
14841 still use the original mechanism and pre-allocate the buffer(s).
14843 Implemented support for string operands within the DerefOf
14846 Restructured the Hardware and Event managers to be table driven,
14847 simplifying the source code and reducing the amount of generated
14850 Split the common read/write low-level ACPI register bitfield
14851 procedure into a separate read and write, simplifying the code
14854 Obsoleted the AcpiOsCallocate OSL interface. This interface was
14857 in the core.
14859 Fixed a reported problem with the GPE number mapping mechanism
14861 Reorganized the GPE information and shrunk a large array that was
14863 to simply large enough to hold all GPEs up to the largest GPE
14864 number on the machine.
14869 Changed the AcpiEnableEvent and AcpiDisableEvent external
14870 interfaces to not require any flags for the common case of
14875 Most TBDs in comments within the source code have been resolved
14879 Fixed a problem in the interpreter where a standalone parent
14880 prefix (^) was not handled correctly in the interpreter and
14885 Implemented Field support in the ASL Load operator. This allows a
14889 Implemented timeout and handle support in the external Global Lock
14892 Fixed a problem in the AcpiDump utility where pathnames were no
14893 longer being generated correctly during the dump of named objects.
14895 Modified the AML debugger to give a full display of if/while
14901 below. These are the code and data sizes for the acpica.lib
14902 produced by the Microsoft Visual C++ 6.0 compiler, and these
14904 version of the code includes the debug output trace mechanism and
14906 depending on the efficiency of the compiler and the compiler
14938 AML code into firmware: 1) Output the AML in C source code with
14940 is interleaved as C comments. 2) Output the AML in ASM source code
14941 with labels and interleaved ASL source. 3) Output the AML in
14944 Implemented support for optional string parameters to the
14949 as well as the Octal and Hex escapes. Note: the insertion of a
14950 null byte into a string literal (via the hex/octal escape) causes
14951 the string to be immediately terminated. A warning is issued.
14953 Fixed a problem where incorrect AML was generated for the case
14972 Call _PIC control method to inform the firmware which interrupt
14973 model the OS is using. Turn on any disabled link devices.
14979 Implemented ACPI 2.0 semantics for the "Break" operator (Exit from
14982 Completed implementation of the ACPI 2.0 "Continue",
14985 the ASL compiler and the AML interpreter. The only remaining ACPI
14986 2.0 task is support for the String data type in the DerefOf
14987 operator. Fixed a problem with AcquireMutex where the status code
14988 was lost if the caller had to actually wait for the mutex.
14990 Increased the maximum ASL Field size from 64K bits to 4G bits.
14992 Completed implementation of the external Global Lock interfaces --
14998 with the Intel 64-bit C/C++ compiler. Most notably, the pointer
15004 wherever memory allocation and/or the C sizeof() operator is used,
15005 and affects the OSL memory allocation interfaces AcpiOsAllocate
15008 Implemented sticky user breakpoints in the AML debugger.
15011 below. These are the code and data sizes for the acpica.lib
15012 produced by the Microsoft Visual C++ 6.0 compiler, and these
15014 version of the code includes the debug output trace mechanism and
15016 depending on the efficiency of the compiler and the compiler
15028 Now checks for (and generates an error if detected) the use of a
15032 Successfully generated the compiler with the Intel 64-bit C
15042 bypass the "implicit conversion" mechanism of the Store operator.)
15044 The ACPI 2.0 semantics for the SizeOf operator are fully
15046 reference object causes an automatic dereference of the object to
15047 tha actual value before the size is evaluated. This behavior was
15050 The ACPI 2.0 semantics for the Extended IRQ resource descriptor
15056 integers when the internal Package was converted to an external
15057 object (via the AcpiEvaluateObject interface.)
15059 Fixed a problem with the namespace object deletion mechanism for
15061 problem: 1) Objects created during the initialization phase method
15065 Fixed a problem where the use of the ASL Scope operator within a
15068 Fixed a problem introduced in the previous label where the buffer
15069 length required for the _PRT structure was not being returned
15073 below. These are the code and data sizes for the acpica.lib
15074 produced by the Microsoft Visual C++ 6.0 compiler, and these
15076 version of the code includes the debug output trace mechanism and
15078 depending on the efficiency of the compiler and the compiler
15094 (acpi_pci.c), and unified the PRT code for IA32 and IA64. This
15100 Changed the initialization sequence to start the ACPI interpreter
15101 (acpi_init) prior to initialization of the PCI driver (pci_init)
15103 facilitate other (future) enhancement. A side effect is that the
15107 Modified the 'make menuconfig' options to allow PCI Interrupt
15108 Routing support to be included without the ACPI Bus and other
15113 Fixed some issues with the use of the new CopyObject and
15125 the least-significant byte of the source to the Indexed buffer
15128 Fixed a problem where the access type used in an AccessAs ASL
15129 operator was not recorded correctly into the field object.
15135 initialization to reduce the use of dynamic kernel memory -- on
15136 the assumption that object use is greatest during the parse phase
15137 of the entire table (versus the run-time use of individual control
15143 feature development with an actual reduction in the library size.
15145 the code and data sizes for the acpica.lib produced by the
15147 any ACPI driver or OSPM code. The debug version of the code
15148 includes the debug output trace mechanism and has a larger code
15149 and data size. Note that these values will vary depending on the
15150 efficiency of the compiler and the compiler options used during
15163 Enhanced the ACPI boot-time initialization code to allow the use
15165 pave the way for a fully MPS-free boot (on SMP systems) in the
15169 "acpi_boot=on" to the kernel command line -- see the help entry
15171 the works...
15173 Restructured the configuration options to allow boot-time table
15174 parsing support without inclusion of the ACPI Interpreter (and
15177 NOTE: This release does not include fixes for the reported events,
15185 declared with the BufferAcc access type.
15187 Fixed a problem where the listing file output of control methods
15188 no longer interleaved the actual AML code with the ASL source
15200 Buffer, String, or Integer source operand that is smaller than the
15201 target field. In these cases, the source operand is zero-extended
15202 to fill the target field.
15204 Fixed a problem where a Field starting bit offset (within the
15205 parent operation region) was calculated incorrectly if the
15207 alignment of the field differed from the access width. This
15209 possibly other fields that use the "AccessAny" keyword.
15211 Fixed a problem introduced in the 11_02_01 release where indirect
15218 facilitates the use of ACPI tables (e.g. MADT, SRAT) rather than
15219 legacy BIOS interfaces (e.g. MPS) for the configuration of system
15221 this patch does not include the required architecture-specific
15227 sleeping states (e.g. S1, S3), although the lack of a centralized
15231 Revamped the ACPI 'menuconfig' layout: created new "ACPI Support"
15235 Increased the default timeout for the EC driver from 1ms to 10ms
15248 OSL Interfaces: Several of the OSL (AcpiOs*) interfaces required
15251 accept an ACPI_INTEGER (64 bits) as the value parameter. Also,
15252 the value parameter for the address space handler interface is now
15254 handle the case where the Width parameter is 64.
15261 that the value written to an Index or Bank register is not out of
15262 the range of the register. The Index (or Bank) register is
15263 written before each access to the field data. Future support will
15264 include allowing individual IndexFields to be wider than the
15267 Fields: Fixed a problem where the AML interpreter was incorrectly
15268 attempting to write beyond the end of a Field/OpRegion. This was
15270 BYTE access OpRegion, forcing multiple writes and causing the
15273 Fields: Fixed a problem with Field/OpRegion access where the
15274 starting bit address of a field was incorrectly calculated if the
15280 not resolved during the AML table load.
15283 definition to the parent Operation Region definition were not
15284 resolved during the AML table load.
15289 Acpi Interfaces: Fixed a problem where the AcpiGetName() interface
15290 returned an incorrect name for the root node.
15293 feature development with an actual reduction in the library size.
15295 the code and data sizes for the acpica.lib produced by the
15297 any ACPI driver or OSPM code. The debug version of the code
15298 includes the debug output trace mechanism and has a larger code
15299 and data size. Note that these values will vary depending on the
15300 efficiency of the compiler and the compiler options used during
15331 Fixed a problem with the internal object reference count mechanism
15333 all of the outstanding problem reports where an object is deleted
15334 in the middle of an interpreter evaluation. Although this problem
15335 only showed up in rather obscure cases, the solution to the
15339 Fixed a problem with Field support in the interpreter where
15341 or greater) of the field access granularity would cause an attempt
15342 to write beyond the end of the field.
15344 The top level AML opcode execution functions within the
15350 Support for the ACPI 2.0 "Mid" ASL operator has been implemented.
15352 Fixed a problem where the AML debugger was causing some internal
15355 Fixed a problem with the external AcpiEvaluateObject interface
15356 where the subsystem would fault if the named object to be
15359 Fixed a problem with IndexFields and BankFields where the
15360 subsystem would fault if the index, data, or bank registers were
15361 not defined in the same scope as the field itself.
15366 throughout the core subsystem code.
15368 The ASL "Revision" operator now returns the ACPI support level
15369 implemented in the core - the value "2" since the ACPI 2.0 support
15372 Enhanced the output of the AML debugger "dump namespace" command
15377 are the code and data sizes for the acpica.lib produced by the
15379 any ACPI driver or OSPM code. The debug version of the code
15380 includes the full debug trace mechanism -- leading to a much
15383 depending on the efficiency of the compiler and the compiler
15400 Enhanced the /proc interface for the thermal zone driver and added
15401 support for _HOT (the critical suspend trip point). The 'info'
15404 to the 'info' file. Examples: "echo tzp=5 > info" sets the polling
15405 frequency to 5 seconds, and "echo scp=1 > info" sets the cooling
15406 preference to the passive/quiet mode (if supported by the ASL).
15409 when loading the control method battery driver.
15418 enabled (i.e., these GPEs are to remain enabled when the platform
15422 support wake-enabled GPEs. This means that upon entering the
15424 When leaving the sleep state, these GPEs are reenabled.
15430 Several optimizations have been made to reduce the use of CPU
15431 stack. Originally over 2K, the maximum stack usage is now below
15434 Fixed a problem with the AcpiGetFirmwareTable interface where the
15437 Fixed a problem where a NULL pointer was being dereferenced in the
15438 interpreter code for the ASL Notify operator.
15440 Fixed a problem where the use of the ASL Revision operator
15441 returned an error. This operator now returns the current version
15442 of the ACPI CA core subsystem.
15446 However, these objects may end up being stored into the namespace
15447 by the called method. The object reference count mechanism was
15450 Fixed a problem where static strings or buffers (contained in the
15451 AML code) that are declared as package elements within the ASL
15452 code could cause a fault because the interpreter would attempt to
15453 delete them. These objects are now marked with the "static
15457 from the state object instead of extracting the operands to local
15465 are the code and data sizes for the acpica.lib produced by the
15467 any ACPI driver or OSPM code. The debug version of the code
15468 includes the full debug trace mechanism -- leading to a much
15470 depending on the efficiency of the compiler and the compiler
15487 Changes to the external interfaces as described above.
15494 A bug with interpreter implementation of the ASL Divide operator
15495 was found and fixed. The implicit function return value (not the
15496 explicit store operands) was returning the remainder instead of
15497 the quotient. This was a longstanding bug and it fixes several
15501 been further optimized for size. There are 700 invocations of the
15502 DEBUG_PRINT macro alone, so each optimization reduces the size of
15503 the debug version of the subsystem significantly.
15507 stack" will display the current maximum stack usage.
15509 All public symbols and global variables within the subsystem are
15510 now prefixed with the string "Acpi". This keeps all of the
15514 Most of the internal fixed lookup tables have been moved into the
15515 code segment via the const operator.
15517 Several enhancements have been made to the interpreter to both
15518 reduce the code size and improve performance.
15521 are the code and data sizes for the acpica.lib produced by the
15523 any ACPI driver or OSPM code. The debug version of the code
15524 includes the full debug trace mechanism which contains over 700
15525 invocations of the DEBUG_PRINT macro, 500 function entry macro
15528 values will vary depending on the efficiency of the compiler and
15529 the compiler options used during generation.
15542 Fixed a problem introduced in the previous label where the AML
15552 The following ACPI 2.0 ASL operators have been implemented in the
15553 AML interpreter (These are already supported by the Intel ASL
15555 ToBuffer. Support for 64-bit AML constants is implemented in the
15559 been upgraded to reduce the memory overhead (a separate tracking
15561 supports all of the internal object caches.
15563 The data structures and code for the internal object caches have
15566 implement generic cache management. This has reduced the code
15567 size in both the debug and release versions of the subsystem.
15574 16% in the debug version of the subsystem.
15591 Fixed a problem where the optional length parameter for the ACPI
15595 detected within the declaration line of a control method.
15603 ACPI table via the ACPI signature. The interface can be called at
15604 any time during kernel initialization, even before the kernel
15607 before the ACPI CA subsystem is initialized.
15609 Fixed a problem where Fields defined with the AnyAcc attribute
15610 could be resolved to the incorrect address under the following
15611 conditions: 1) the field width is larger than 8 bits and 2) the
15614 Fixed a problem where the interpreter is not being locked during
15615 namespace initialization (during execution of the _INI control
15619 ACPI 2.0 support in the AML Interpreter has begun and will be
15620 ongoing throughout the rest of this year. In this label, The Mod
15624 ACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device,
15629 Enhanced the Linux version of the source code to change most
15632 result in a large diff, but the change is strictly cosmetic and
15633 aligns the CA code closer to the Linux coding standard.
15637 The interfaces to the PCI configuration space have been changed to
15638 add the PCI Segment number and to split the single 32-bit combined
15640 accomplished by moving the four values that define an address in
15642 the new ACPI_PCI_ID structure.
15644 The changes to the PCI configuration space interfaces led to a
15645 reexamination of the complete set of address space access
15650 systems, it would not be appropriate to demultiplex the access
15651 width (8, 16, 32,or 64) before calling the OSL if the
15653 parameter. For these reasons, the 18 address space interfaces
15663 Added a new interface named AcpiOsGetRootPointer to allow the OSL
15664 to perform the platform and/or OS-specific actions necessary to
15665 obtain the ACPI RSDP table pointer. On IA-32 platforms, this
15666 interface will simply call down to the CA core to perform the low-
15667 memory search for the table. On IA-64, the RSDP is obtained from
15668 EFI. Migrating this interface to the OSL allows the CA core to
15674 signals and notifications that must be made to the host OS. The
15675 first such signals are intended to support the ASL Fatal and
15676 Breakpoint operators. In the latter case, the AcpiOsBreakpoint
15679 The definition of the AcpiFormatException interface has been
15681 buffer to the call; A pointer to a const string is now returned
15682 directly. This allows the call to be easily used in printf
15683 statements, etc. since the caller does not have to manage a local
15691 interpreters, since the operators are simply translated to If/Else
15695 with 1.0 interpreters, for the same reason.
15699 the interpreter at run-time.
15702 reflect the new interfaces and changes to existing interfaces.
15711 the nearest DWORD. Buffers are always Byte-accessible.
15715 Fixed a problem where the Switch() operator would either fault or
15716 hang the compiler. Note however, that the AML code for this ACPI
15719 Compiler uses the new AcpiOsGetTimer interface to obtain compile
15722 Implementation of the CreateField operator automatically converts
15726 Added some missing named fields from the resource descriptor
15727 support. These are the names that are automatically created by the
15729 valid at compile time and are not passed through to the AML
15740 Fixed a couple of problems in the Field support code where bits
15741 from adjacent fields could be returned along with the proper field
15742 bits. Restructured the field support code to improve performance,
15745 New DEBUG_PRINTP macro automatically inserts the procedure name
15746 into the output, saving hundreds of copies of procedure name
15747 strings within the source, shrinking the memory footprint of the
15748 debug version of the core subsystem.
15752 The source code directory tree was restructured to reflect the
15753 current organization of the component architecture. Some files
15769 The temporary .SRC file is deleted unless the "-s" option is
15772 The "-d" debug output option now sends all output to the .DBG file
15773 instead of the console.
15777 "ElseIf" syntax now properly allows the predicate
15797 Escaped backslash at the end of a string ("\\") scan/parse error
15816 Fixed a problem introduced in the previous label where some of the
15819 Improved error messages for the case where an ASL Field is outside
15820 the range of the parent operation region.
15825 Added error detection for ASL Fields that extend beyond the length
15826 of the parent operation region (only if the length of the region
15828 minimum access width that is smaller than the parent region, and
15829 individual field units that are partially or entirely beyond the
15830 extent of the parent.
15839 Fixed a problem where the namespace mutex could be released at the
15844 when the debug code realizes that a different thread is now
15847 Some additional external data types have been prefixed with the
15849 The data types affected are the external callback typedefs - e.g.,
15855 Fixed an issue with the OSL semaphore implementation where a
15859 Linux version of ACPI CA now uses the system C library for string
15883 and (Operation) RegionFields are now supported by the same field
15887 16/32/64 bit address structures and the Extended IRQ structure
15901 Fixed the EC driver to honor _GLK.
15905 Fixed support for the "FixedHw" keyword. Previously, the FixedHw
15913 During ACPI initialization, the _SB_._INI method is now run if
15916 Notify handler fix - notifies are deferred until the parent method
15917 completes execution. This fixes the "mutex already acquired"
15920 Part of the "implicit conversion" rules in ACPI 2.0 have been
15993 for the deadlock detection code. Defined to return a non-zero, 32-
15994 bit thread ID for the currently executing thread. May be a non-
16001 includes multiple acquires/releases by owner and support for the
16007 exits the interpreter. This forces conformance to the ACPI spec
16013 Several new ACPI exception codes have been added for the Mutex
16016 Recursive method calls are now allowed and supported (the ACPI
16018 recursive calls is subject to the restrictions imposed by the
16022 Implemented support for the SyncLevel parameter for control
16026 the interpreter.
16028 Fixed a problem where the string length of a String package
16032 Fixed a problem where the length of a String package element was
16033 not always included in the length of the overall package returned
16036 Added external interfaces (Acpi*) to the ACPI debug memory
16039 free memory blocks more than once. Useful for code such as the
16041 Performance with the debug code enabled is slow.
16047 Integrated changes to allow the compiler to be generated on
16050 Linux makefile added to generate the compiler on Linux
16063 The programmer reference has been updated for the following new
16070 incorrectly returned if the return resource buffer was larger than
16071 the actual data (in the resource interfaces).
16073 References to named objects within packages are resolved to the
16076 the AcpiEvaluateObject interface) or indirectly via the resource
16089 including the ones that are not actually passed in as parameters.
16090 The compiler tracks initialization of the arguments and issues an
16095 output files, including the AML output file. Otherwise, the
16096 default behavior is as follows: 1) the AML goes to the file
16097 specified in the DSDT. 2) all other output files use the input
16098 source filename as the base.
16103 Core ACPI CA Subsystem: Restructured the implementation of object
16104 store support within the interpreter. This includes support for
16105 the Store operator as well as any ASL operators that include a
16109 conversion. This is when a result object is converted on the fly
16110 to the type of an existing target object. Completion of this
16111 support is pending further analysis of the ACPI specification
16114 CPU-specific code has been removed from the subsystem (hardware
16120 to the core, fixed it, and modified Linux OSL accordingly.
16125 We no longer use the compilation date for the version message on
16126 initialization, but retrieve the version from AcpiGetSystemInfo().
16134 ASL Compiler: Version X2013: Fixed a problem where the line
16135 numbering and error reporting could get out of sync in the
16143 Implemented support for type conversions in the execution of the
16145 match the type of the first operand before concatenation.)
16150 converted by the interpreter on the fly as required. Implicit
16151 Target operand conversion (where the result is converted to the
16157 read past the end of the field.
16160 does not return a value, but the caller expects one. (The ASL
16167 prevents the use of invalid objects (such as using a Package where
16181 the interpreter at runtime.
16182 2. Compiler reports time taken by each internal subsystem in the
16191 This is the first official release of the compiler. Since the
16192 compiler requires elements of the Core Subsystem, this label
16199 Fixed a problem where named references within the ASL definition
16202 initialization of the region/field. This is similar (but not
16203 related internally) to the problem that was fixed in the last
16206 Implemented both 32-bit and 64-bit support for the BCD ASL
16209 Updated all legal headers to include "2000" in the copyright
16215 Fixed a problem where method invocations within the ASL definition
16218 initialization of the region/field:
16231 Fixed a problem where AcpiGetHandle didn't quite get fixed in the
16236 the operation region name was a "namepath" instead of a simple
16239 Fixed a problem where an assignment to a local variable via the
16240 indirect RefOf mechanism only worked for the first such
16246 ACPI 2.0 table support with backwards support for ACPI 1.0 and the
16248 the AML interpreter does NOT have support for the new 2.0 ASL
16251 All ACPI hardware access is via the GAS structures in the ACPI 2.0
16255 wide. Logical address width remains dependent on the platform
16260 The AML interpreter integer size is now 64 bits, as per the ACPI
16266 Fixed a problem where the evaluation of OpRegion operands did not
16273 CBN_ OpRegions when the _STA returns 0x8.
16301 longer has any parameters AcpiFindRootPointer - Find the RSDP (if
16309 at the root namespace object.
16322 namespace object, so the memory savings is significant.
16324 Implemented just-in-time evaluation of the CreateField operators.
16331 through the namespace to initialize all operation regions (address
16332 spaces) and fields that have not yet been initialized during the
16333 execution of the various _INI and REG methods.
16340 Namespace manager data structures have been reworked to change the
16342 resulted in dynamic memory savings of 3X within the namespace and
16343 2X overall in the ACPI CA subsystem.
16345 Fixed problem where the call to AcpiEvFindPciRootBuses was
16348 Reduced the warning count when generating the source with the GCC
16351 Revision numbers added to each module header showing the
16352 SourceSafe version of the file. Please refer to this version
16355 The main object types within the subsystem have been renamed to
16362 NOTE: no changes to the initialization sequence are included in
16380 Parser/Interpreter integration: Eliminated the creation of
16383 they are processed (Either entered into the namespace or executed
16384 by the interpreter). This reduces the use of dynamic kernel
16389 have to renumber the codes again now that they are split into
16393 Fixed some additional alignment issues in the Resource Manager
16396 Implemented semaphore tracking in the AcpiExec utility, and fixed
16401 Fixed the case where an ASL Return operator is used to return an
16407 Fixed a problem with the way addresses were calculated in
16410 DwordAccess, but the field unit defined within the Field was less
16415 operands off of the operand stack to display information. The
16419 Fixed a problem with the PCI configuration space handlers where
16421 change to the generic address space handler and address space
16423 (this is the one passed in by the user when executing
16425 that is unique to each region (For example, the _ADR, _SEG and
16427 function definitions have changed to the following:
16441 Major file consolidation and rename. All files within the
16443 was done to prevent collisions with existing files in the host
16448 The parser/interpreter integration continues in Phase 5 with the
16449 implementation of a complete 2-pass parse (the AML is parsed
16450 twice) for each table; This avoids the construction of a huge
16451 parse tree and therefore reduces the amount of dynamic memory
16452 required by the subsystem. Greater use of the parse object cache
16455 Many comments from the two code reviews have been rolled in.
16462 With a nod and a tip of the hat to the technology of yesteryear,
16463 we've added support in the source code for 80 column output
16469 A major restructuring of the namespace data structure has been
16472 in the dynamic memory requirement for each named ACPI object
16479 the ACPI CA subsystem into the Linux kernel, we've had to make
16480 quite a few changes to the base subsystem that will affect all
16481 users (all the changes are generic and OS- independent). The
16488 interfaces must be modified to match the new naming convention.
16490 Files merged across the subsystem. A number of the smaller source
16491 and header files have been merged to reduce the file count and
16492 increase the density of the existing files. There are too many
16496 Interpreter files renamed. All interpreter files now have the
16501 the acronym "API" since it is somewhat windowsy. The new name is
16502 "external interface" or xface or xf in the filenames.j
16506 mixed case.) Also, the string "ACPI_" has been prepended to many
16507 (not all) of the constants, typedefs, and structs.
16512 All other globals within the subsystem are now prefixed with
16513 "AcpiGbl_" Internal procedures within the subsystem are now
16515 two-letter abbreviation for the subcomponent remains after "Acpi"
16519 generate the Linux source code, it can be modified to generate
16528 When set to one, this indicates that the caller wants to use the
16532 different OS primitives depending on the type of semaphore
16535 "mutex" and "semaphore" interfaces - where the mutex interface is
16536 much faster because it doesn't have all the overhead of a full
16539 Fixed a deadlock problem where a method that accesses the PCI
16540 address space can block forever if it is the first access to the
16548 handler technology namely SAL/EFI and the IA-64 Linux kernel) has
16550 Transfer of data from the raw AML byte stream is done via byte
16552 aligned within the user buffer, including package elements (sub-
16559 Added a check of the BM_STS bit before entering C3.
16562 file, cmeval.c subsumes the functionality.
16565 makefile is under the acpiexec directory.