changes.txt revision 220663
1117521Snjl---------------------------------------- 2220663Sjkim13 April 2011. Summary of changes for version 20110413: 3220663Sjkim 4220663Sjkim1) ACPI CA Core Subsystem: 5220663Sjkim 6220663SjkimImplemented support to execute a so-called "orphan" _REG method under the EC 7220663Sjkimdevice. This change will force the execution of a _REG method underneath the EC 8220663Sjkimdevice even if there is no corresponding operation region of type 9220663SjkimEmbeddedControl. Fixes a problem seen on some machines and apparently is 10220663Sjkimcompatible with Windows behavior. ACPICA BZ 875. 11220663Sjkim 12220663SjkimAdded more predefined methods that are eligible for automatic NULL package 13220663Sjkimelement removal. This change adds another group of predefined names to the list 14220663Sjkimof names that can be repaired by having NULL package elements dynamically 15220663Sjkimremoved. This group are those methods that return a single variable-length 16220663Sjkimpackage containing simple data types such as integers, buffers, strings. This 17220663Sjkimincludes: _ALx, _BCL, _CID,_ DOD, _EDL, _FIX, _PCL, _PLD, _PMD, _PRx, _PSL, _Sx, 18220663Sjkimand _TZD. ACPICA BZ 914. 19220663Sjkim 20220663SjkimSplit and segregated all internal global lock functions to a new file, evglock.c. 21220663Sjkim 22220663SjkimUpdated internal address SpaceID for DataTable regions. Moved this internal space 23220663Sjkimid in preparation for ACPI 5.0 changes that will include some new space IDs. This 24220663Sjkimchange should not affect user/host code. 25220663Sjkim 26220663SjkimExample Code and Data Size: These are the sizes for the OS-independent acpica.lib 27220663Sjkimproduced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug version of 28220663Sjkimthe code includes the debug output trace mechanism and has a much larger code and 29220663Sjkimdata size. 30220663Sjkim 31220663Sjkim Previous Release (VC 9.0): 32220663Sjkim Non-Debug Version: 89.8K Code, 23.8K Data, 113.6K Total 33220663Sjkim Debug Version: 164.2K Code, 67.9K Data, 232.1K Total 34220663Sjkim Current Release (VC 9.0): 35220663Sjkim Non-Debug Version: 90.0K Code, 23.8K Data, 113.8K Total 36220663Sjkim Debug Version: 164.5K Code, 68.0K Data, 232.5K Total 37220663Sjkim 38220663Sjkim2) iASL Compiler/Disassembler and Tools: 39220663Sjkim 40220663SjkimiASL/DTC: Major update for new grammar features. Allow generic data types in 41220663Sjkimcustom ACPI tables. Field names are now optional. Any line can be split to 42220663Sjkimmultiple lines using the continuation char (\). Large buffers now use line- 43220663Sjkimcontinuation character(s) and no colon on the continuation lines. See the grammar 44220663Sjkimupdate in the iASL compiler reference. ACPI BZ 910,911. Lin Ming, Bob Moore. 45220663Sjkim 46220663SjkimiASL: Mark ASL "Return()" and the simple "Return" as "Null" return statements. 47220663SjkimSince the parser stuffs a "zero" as the return value for these statements (due to 48220663Sjkimthe underlying AML grammar), they were seen as "return with value" by the iASL 49220663Sjkimsemantic checking. They are now seen correctly as "null" return statements. 50220663Sjkim 51220663SjkimiASL: Check if a_REG declaration has a corresponding Operation Region. Adds a 52220663Sjkimcheck for each _REG to ensure that there is in fact a corresponding operation 53220663Sjkimregion declaration in the same scope. If not, the _REG method is not very useful 54220663Sjkimsince it probably won't be executed. ACPICA BZ 915. 55220663Sjkim 56220663SjkimiASL/DTC: Finish support for expression evaluation. Added a new expression parser 57220663Sjkimthat implements c-style operator precedence and parenthesization. ACPICA bugzilla 58220663Sjkim908. 59220663Sjkim 60220663SjkimDisassembler/DTC: Remove support for () and <> style comments in data tables. Now 61220663Sjkimthat DTC has full expression support, we don't want to have comment strings that 62220663Sjkimstart with a parentheses or a less-than symbol. Now, only the standard /* and // 63220663Sjkimcomments are supported, as well as the bracket [] comments. 64220663Sjkim 65220663SjkimAcpiXtract: Fix for RSDP and dynamic SSDT extraction. These tables have "unusual" 66220663Sjkimheaders in the acpidump file. Update the header validation to support these 67220663Sjkimtables. Problem introduced in previous AcpiXtract version in the change to 68220663Sjkimsupport "wrong checksum" error messages emitted by acpidump utility. 69220663Sjkim 70220663SjkimiASL: Add a * option to generate all template files (as a synonym for ALL) as in 71220663Sjkim"iasl -T *" or "iasl -T ALL". 72220663Sjkim 73220663SjkimiASL/DTC: Do not abort compiler on fatal errors. We do not want to completely 74220663Sjkimabort the compiler on "fatal" errors, simply should abort the current compile. 75220663SjkimThis allows multiple compiles with a single (possibly wildcard) compiler 76220663Sjkiminvocation. 77220663Sjkim 78220663Sjkim---------------------------------------- 79219707Sjkim16 March 2011. Summary of changes for version 20110316: 80219707Sjkim 81219707Sjkim1) ACPI CA Core Subsystem: 82219707Sjkim 83219707SjkimFixed a problem caused by a _PRW method appearing at the namespace root scope 84219707Sjkimduring the setup of wake GPEs. A fault could occur if a _PRW directly under the 85219707Sjkimroot object was passed to the AcpiSetupGpeForWake interface. Lin Ming. 86219707Sjkim 87219707SjkimImplemented support for "spurious" Global Lock interrupts. On some systems, a 88219707Sjkimglobal lock interrupt can occur without the pending flag being set. Upon a GL 89219707Sjkiminterrupt, we now ensure that a thread is actually waiting for the lock before 90219707Sjkimsignaling GL availability. Rafael Wysocki, Bob Moore. 91219707Sjkim 92219707SjkimExample Code and Data Size: These are the sizes for the OS-independent acpica.lib 93219707Sjkimproduced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug version of 94219707Sjkimthe code includes the debug output trace mechanism and has a much larger code and 95219707Sjkimdata size. 96219707Sjkim 97219707Sjkim Previous Release (VC 9.0): 98219707Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 99219707Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 100219707Sjkim Current Release (VC 9.0): 101219707Sjkim Non-Debug Version: 89.8K Code, 23.8K Data, 113.6K Total 102219707Sjkim Debug Version: 164.2K Code, 67.9K Data, 232.1K Total 103219707Sjkim 104219707Sjkim2) iASL Compiler/Disassembler and Tools: 105219707Sjkim 106219707SjkimImplemented full support for the "SLIC" ACPI table. Includes support in the 107219707Sjkimheader files, disassembler, table compiler, and template generator. Bob Moore, 108219707SjkimLin Ming. 109219707Sjkim 110219707SjkimAcpiXtract: Correctly handle embedded comments and messages from AcpiDump. 111219707SjkimApparently some or all versions of acpidump will occasionally emit a comment like 112219707Sjkim"Wrong checksum", etc., into the dump file. This was causing problems for 113219707SjkimAcpiXtract. ACPICA BZ 905. 114219707Sjkim 115219707SjkimiASL: Fix the Linux makefile by removing an inadvertent double file inclusion. 116219707SjkimACPICA BZ 913. 117219707Sjkim 118219707SjkimAcpiExec: Update installation of operation region handlers. Install one handler 119219707Sjkimfor a user-defined address space. This is used by the ASL test suite (ASLTS). 120219707Sjkim 121219707Sjkim---------------------------------------- 122218590Sjkim11 February 2011. Summary of changes for version 20110211: 123218590Sjkim 124218590Sjkim1) ACPI CA Core Subsystem: 125218590Sjkim 126218590SjkimAdded a mechanism to defer _REG methods for some early-installed handlers. 127218590SjkimMost user handlers should be installed before call to AcpiEnableSubsystem. 128218590SjkimHowever, Event handlers and region handlers should be installed after 129218590SjkimAcpiInitializeObjects. Override handlers for the "default" regions should be 130218590Sjkiminstalled early, however. This change executes all _REG methods for the 131218590Sjkimdefault regions (Memory/IO/PCI/DataTable) simultaneously to prevent any 132218590Sjkimchicken/egg issues between them. ACPICA BZ 848. 133218590Sjkim 134218590SjkimImplemented an optimization for GPE detection. This optimization will simply 135218590Sjkimignore GPE registers that contain no enabled GPEs -- there is no need to 136218590Sjkimread the register since this information is available internally. This 137218590Sjkimbecomes more important on machines with a large GPE space. ACPICA bugzilla 138218590Sjkim884. Lin Ming. Suggestion from Joe Liu. 139218590Sjkim 140218590SjkimRemoved all use of the highly unreliable FADT revision field. The revision 141218590Sjkimnumber in the FADT has been found to be completely unreliable and cannot be 142218590Sjkimtrusted. Only the actual table length can be used to infer the version. This 143218590Sjkimchange updates the ACPICA core and the disassembler so that both no longer 144218590Sjkimeven look at the FADT version and instead depend solely upon the FADT 145218590Sjkimlength. 146218590Sjkim 147218590SjkimFix an unresolved name issue for the no-debug and no-error-message source 148218590Sjkimgeneration cases. The _AcpiModuleName was left undefined in these cases, but 149218590Sjkimit is actually needed as a parameter to some interfaces. Define 150218590Sjkim_AcpiModuleName as a null string in these cases. ACPICA Bugzilla 888. 151218590Sjkim 152218590SjkimSplit several large files (makefiles and project files updated) 153218590Sjkim utglobal.c -> utdecode.c 154218590Sjkim dbcomds.c -> dbmethod.c dbnames.c 155218590Sjkim dsopcode.c -> dsargs.c dscontrol.c 156218590Sjkim dsload.c -> dsload2.c 157218590Sjkim aslanalyze.c -> aslbtypes.c aslwalks.c 158218590Sjkim 159218590SjkimExample Code and Data Size: These are the sizes for the OS-independent 160218590Sjkimacpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The 161218590Sjkimdebug version of the code includes the debug output trace mechanism and has 162218590Sjkima much larger code and data size. 163218590Sjkim 164218590Sjkim Previous Release (VC 9.0): 165218590Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 166218590Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 167218590Sjkim Current Release (VC 9.0): 168218590Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 169218590Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 170218590Sjkim 171218590Sjkim2) iASL Compiler/Disassembler and Tools: 172218590Sjkim 173218590SjkimiASL: Implemented the predefined macros __LINE__, __FILE__, and __DATE__. 174218590SjkimThese are useful C-style macros with the standard definitions. ACPICA 175218590Sjkimbugzilla 898. 176218590Sjkim 177218590SjkimiASL/DTC: Added support for integer expressions and labels. Support for full 178218590Sjkimexpressions for all integer fields in all ACPI tables. Support for labels in 179218590Sjkim"generic" portions of tables such as UEFI. See the iASL reference manual. 180218590Sjkim 181218590SjkimDebugger: Added a command to display the status of global handlers. The 182218590Sjkim"handlers" command will display op region, fixed event, and miscellaneous 183218590Sjkimglobal handlers. installation status -- and for op regions, whether default 184218590Sjkimor user-installed handler will be used. 185218590Sjkim 186218590SjkimiASL: Warn if reserved method incorrectly returns a value. Many predefined 187218590Sjkimnames are defined such that they do not return a value. If implemented as a 188218590Sjkimmethod, issue a warning if such a name explicitly returns a value. ACPICA 189218590SjkimBugzilla 855. 190218590Sjkim 191218590SjkimiASL: Added detection of GPE method name conflicts. Detects a conflict where 192218590Sjkimthere are two GPE methods of the form _Lxy and _Exy in the same scope. (For 193218590Sjkimexample, _L1D and _E1D in the same scope.) ACPICA bugzilla 848. 194218590Sjkim 195218590SjkimiASL/DTC: Fixed a couple input scanner issues with comments and line 196218590Sjkimnumbers. Comment remover could get confused and miss a comment ending. Fixed 197218590Sjkima problem with line counter maintenance. 198218590Sjkim 199218590SjkimiASL/DTC: Reduced the severity of some errors from fatal to error. There is 200218590Sjkimno need to abort on simple errors within a field definition. 201218590Sjkim 202218590SjkimDebugger: Simplified the output of the help command. All help output now in 203218590Sjkima single screen, instead of help subcommands. ACPICA Bugzilla 897. 204218590Sjkim 205218590Sjkim---------------------------------------- 206217365Sjkim12 January 2011. Summary of changes for version 20110112: 207217365Sjkim 208217365Sjkim1) ACPI CA Core Subsystem: 209217365Sjkim 210217365SjkimFixed a race condition between method execution and namespace walks that can 211217365Sjkimpossibly cause a fault. The problem was apparently introduced in version 212220663Sjkim20100528 as a result of a performance optimization that reduces the number of 213217365Sjkimnamespace walks upon method exit by using the delete_namespace_subtree 214217365Sjkimfunction instead of the delete_namespace_by_owner function used previously. 215217365SjkimBug is a missing namespace lock in the delete_namespace_subtree function. 216217365Sjkimdana.myers@oracle.com 217217365Sjkim 218217365SjkimFixed several issues and a possible fault with the automatic "serialized" 219220663Sjkimmethod support. History: This support changes a method to "serialized" on the 220217365Sjkimfly if the method generates an AE_ALREADY_EXISTS error, indicating the 221217365Sjkimpossibility that it cannot handle reentrancy. This fix repairs a couple of 222217365Sjkimissues seen in the field, especially on machines with many cores: 223217365Sjkim 224217365Sjkim 1) Delete method children only upon the exit of the last thread, 225217365Sjkim so as to not delete objects out from under other running threads 226217365Sjkim (and possibly causing a fault.) 227217365Sjkim 2) Set the "serialized" bit for the method only upon the exit of the 228217365Sjkim Last thread, so as to not cause deadlock when running threads 229217365Sjkim attempt to exit. 230217365Sjkim 3) Cleanup the use of the AML "MethodFlags" and internal method flags 231217365Sjkim so that there is no longer any confusion between the two. 232217365Sjkim 233217365Sjkim Lin Ming, Bob Moore. Reported by dana.myers@oracle.com. 234217365Sjkim 235217365SjkimDebugger: Now lock the namespace for duration of a namespace dump. Prevents 236217365Sjkimissues if the namespace is changing dynamically underneath the debugger. 237217365SjkimEspecially affects temporary namespace nodes, since the debugger displays 238217365Sjkimthese also. 239217365Sjkim 240217365SjkimUpdated the ordering of include files. The ACPICA headers should appear 241217365Sjkimbefore any compiler-specific headers (stdio.h, etc.) so that acenv.h can set 242217365Sjkimany necessary compiler-specific defines, etc. Affects the ACPI-related tools 243217365Sjkimand utilities. 244217365Sjkim 245217365SjkimUpdated all ACPICA copyrights and signons to 2011. Added the 2011 copyright 246217365Sjkimto all module headers and signons, including the Linux header. This affects 247217365Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and all 248217365Sjkimutilities. 249217365Sjkim 250217365SjkimAdded project files for MS Visual Studio 2008 (VC++ 9.0). The original 251217365Sjkimproject files for VC++ 6.0 are now obsolete. New project files can be found 252217365Sjkimunder acpica/generate/msvc9. See acpica/generate/msvc9/readme.txt for 253217365Sjkimdetails. 254217365Sjkim 255217365SjkimExample Code and Data Size: These are the sizes for the OS-independent 256217365Sjkimacpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The 257220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 258217365Sjkimmuch larger code and data size. 259217365Sjkim 260217365Sjkim Previous Release (VC 6.0): 261217365Sjkim Non-Debug Version: 89.8K Code, 18.9K Data, 108.7K Total 262217365Sjkim Debug Version: 166.6K Code, 52.1K Data, 218.7K Total 263217365Sjkim Current Release (VC 9.0): 264217365Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 265217365Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 266217365Sjkim 267217365Sjkim2) iASL Compiler/Disassembler and Tools: 268217365Sjkim 269220663SjkimiASL: Added generic data types to the Data Table compiler. Add "generic" data 270217365Sjkimtypes such as UINT32, String, Unicode, etc., to simplify the generation of 271217365Sjkimplatform-defined tables such as UEFI. Lin Ming. 272217365Sjkim 273220663SjkimiASL: Added listing support for the Data Table Compiler. Adds listing support 274217365Sjkim(-l) to display actual binary output for each line of input code. 275217365Sjkim 276217365Sjkim---------------------------------------- 277216471Sjkim09 December 2010. Summary of changes for version 20101209: 278216471Sjkim 279216471Sjkim1) ACPI CA Core Subsystem: 280216471Sjkim 281216471SjkimCompleted the major overhaul of the GPE support code that was begun in July 282216471Sjkim2010. Major features include: removal of _PRW execution in ACPICA (host 283216471Sjkimexecutes _PRWs anyway), cleanup of "wake" GPE interfaces and processing, 284216471Sjkimchanges to existing interfaces, simplification of GPE handler operation, and 285216471Sjkima handful of new interfaces: 286216471Sjkim 287216471Sjkim AcpiUpdateAllGpes 288216471Sjkim AcpiFinishGpe 289216471Sjkim AcpiSetupGpeForWake 290216471Sjkim AcpiSetGpeWakeMask 291216471Sjkim One new file, evxfgpe.c to consolidate all external GPE interfaces. 292216471Sjkim 293216471SjkimSee the ACPICA Programmer Reference for full details and programming 294216471Sjkiminformation. See the new section 4.4 "General Purpose Event (GPE) Support" 295216471Sjkimfor a full overview, and section 8.7 "ACPI General Purpose Event Management" 296216471Sjkimfor programming details. ACPICA BZ 858,870,877. Matthew Garrett, Lin Ming, 297216471SjkimBob Moore, Rafael Wysocki. 298216471Sjkim 299216471SjkimImplemented a new GPE feature for Windows compatibility, the "Implicit Wake 300216471SjkimGPE Notify". This feature will automatically issue a Notify(2) on a device 301216471Sjkimwhen a Wake GPE is received if there is no corresponding GPE method or 302216471Sjkimhandler. ACPICA BZ 870. 303216471Sjkim 304216471SjkimFixed a problem with the Scope() operator during table parse and load phase. 305220663SjkimDuring load phase (table load or method execution), the scope operator should 306216471Sjkimnot enter the target into the namespace. Instead, it should open a new scope 307216471Sjkimat the target location. Linux BZ 19462, ACPICA BZ 882. 308216471Sjkim 309216471SjkimExample Code and Data Size: These are the sizes for the OS-independent 310216471Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 311220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 312216471Sjkimmuch larger code and data size. 313216471Sjkim 314216471Sjkim Previous Release: 315216471Sjkim Non-Debug Version: 89.8K Code, 18.9K Data, 108.7K Total 316216471Sjkim Debug Version: 166.6K Code, 52.1K Data, 218.7K Total 317216471Sjkim Current Release: 318216471Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 319216471Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 320216471Sjkim 321216471Sjkim2) iASL Compiler/Disassembler and Tools: 322216471Sjkim 323216471SjkimiASL: Relax the alphanumeric restriction on _CID strings. These strings are 324216471Sjkim"bus-specific" per the ACPI specification, and therefore any characters are 325216471Sjkimacceptable. The only checks that can be performed are for a null string and 326216471Sjkimperhaps for a leading asterisk. ACPICA BZ 886. 327216471Sjkim 328216471SjkimiASL: Fixed a problem where a syntax error that caused a premature EOF 329216471Sjkimcondition on the source file emitted a very confusing error message. The 330216471Sjkimpremature EOF is now detected correctly. ACPICA BZ 891. 331216471Sjkim 332216471SjkimDisassembler: Decode the AccessSize within a Generic Address Structure (byte 333216471Sjkimaccess, word access, etc.) Note, this field does not allow arbitrary bit 334216471Sjkimaccess, the size is encoded as 1=byte, 2=word, 3=dword, and 4=qword. 335216471Sjkim 336216471SjkimNew: AcpiNames utility - Example namespace dump utility. Shows an example of 337216471SjkimACPICA configuration for a minimal namespace dump utility. Uses table and 338216471Sjkimnamespace managers, but no AML interpreter. Does not add any functionality 339216471Sjkimover AcpiExec, it is a subset of AcpiExec. The purpose is to show how to 340216471Sjkimpartition and configure ACPICA. ACPICA BZ 883. 341216471Sjkim 342216471SjkimAML Debugger: Increased the debugger buffer size for method return objects. 343216471SjkimWas 4K, increased to 16K. Also enhanced error messages for debugger method 344216471Sjkimexecution, including the buffer overflow case. 345216471Sjkim 346216471Sjkim---------------------------------------- 347213806Sjkim13 October 2010. Summary of changes for version 20101013: 348213806Sjkim 349213806Sjkim1) ACPI CA Core Subsystem: 350213806Sjkim 351213806SjkimAdded support to clear the PCIEXP_WAKE event. When clearing ACPI events, now 352213806Sjkimclear the PCIEXP_WAKE_STS bit in the ACPI PM1 Status Register, via 353213806SjkimHwClearAcpiStatus. Original change from Colin King. ACPICA BZ 880. 354213806Sjkim 355213806SjkimChanged the type of the predefined namespace object _TZ from ThermalZone to 356213806SjkimDevice. This was found to be confusing to the host software that processes 357213806Sjkimthe various thermal zones, since _TZ is not really a ThermalZone. However, a 358213806SjkimNotify() can still be performed on it. ACPICA BZ 876. Suggestion from Rui 359213806SjkimZhang. 360213806Sjkim 361213806SjkimAdded Windows Vista SP2 to the list of supported _OSI strings. The actual 362213806Sjkimstring is "Windows 2006 SP2". 363213806Sjkim 364213806SjkimEliminated duplicate code in AcpiUtExecute* functions. Now that the nsrepair 365213806Sjkimcode automatically repairs _HID-related strings, this type of code is no 366213806Sjkimlonger needed in Execute_HID, Execute_CID, and Execute_UID. ACPICA BZ 878. 367213806Sjkim 368213806SjkimExample Code and Data Size: These are the sizes for the OS-independent 369213806Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 370220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 371213806Sjkimmuch larger code and data size. 372213806Sjkim 373213806Sjkim Previous Release: 374213806Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 375213806Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 376213806Sjkim Current Release: 377213806Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 378213806Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 379213806Sjkim 380213806Sjkim2) iASL Compiler/Disassembler and Tools: 381213806Sjkim 382213806SjkimiASL: Implemented additional compile-time validation for _HID strings. The 383220663Sjkimnon-hex prefix (such as "PNP" or "ACPI") must be uppercase, and the length of 384213806Sjkimthe string must be exactly seven or eight characters. For both _HID and _CID 385213806Sjkimstrings, all characters must be alphanumeric. ACPICA BZ 874. 386213806Sjkim 387213806SjkimiASL: Allow certain "null" resource descriptors. Some BIOS code creates 388220663Sjkimdescriptors that are mostly or all zeros, with the expectation that they will 389220663Sjkimbe filled in at runtime. iASL now allows this as long as there is a "resource 390213806Sjkimtag" (name) associated with the descriptor, which gives the ASL a handle 391213806Sjkimneeded to modify the descriptor. ACPICA BZ 873. 392213806Sjkim 393213806SjkimAdded single-thread support to the generic Unix application OSL. Primarily 394213806Sjkimfor iASL support, this change removes the use of semaphores in the single- 395213806Sjkimthreaded ACPICA tools/applications - increasing performance. The 396213806Sjkim_MULTI_THREADED option was replaced by the (reverse) ACPI_SINGLE_THREADED 397213806Sjkimoption. ACPICA BZ 879. 398213806Sjkim 399220663SjkimAcpiExec: several fixes for the 64-bit version. Adds XSDT support and support 400213806Sjkimfor 64-bit DSDT/FACS addresses in the FADT. Lin Ming. 401213806Sjkim 402213806SjkimiASL: Moved all compiler messages to a new file, aslmessages.h. 403213806Sjkim 404213806Sjkim---------------------------------------- 405212761Sjkim15 September 2010. Summary of changes for version 20100915: 406212761Sjkim 407212761Sjkim1) ACPI CA Core Subsystem: 408212761Sjkim 409220663SjkimRemoved the AcpiOsDerivePciId OSL interface. The various host implementations 410212761Sjkimof this function were not OS-dependent and are now obsolete and can be 411212761Sjkimremoved from all host OSLs. This function has been replaced by 412212761SjkimAcpiHwDerivePciId, which is now part of the ACPICA core code. 413212761SjkimAcpiHwDerivePciId has been implemented without recursion. Adds one new 414212761Sjkimmodule, hwpci.c. ACPICA BZ 857. 415212761Sjkim 416212761SjkimImplemented a dynamic repair for _HID and _CID strings. The following 417212761Sjkimproblems are now repaired at runtime: 1) Remove a leading asterisk in the 418212761Sjkimstring, and 2) the entire string is uppercased. Both repairs are in 419212761Sjkimaccordance with the ACPI specification and will simplify host driver code. 420212761SjkimACPICA BZ 871. 421212761Sjkim 422212761SjkimThe ACPI_THREAD_ID type is no longer configurable, internally it is now 423220663Sjkimalways UINT64. This simplifies the ACPICA code, especially any printf output. 424212761SjkimUINT64 is the only common data type for all thread_id types across all 425212761Sjkimoperating systems. It is now up to the host OSL to cast the native thread_id 426212761Sjkimtype to UINT64 before returning the value to ACPICA (via AcpiOsGetThreadId). 427212761SjkimLin Ming, Bob Moore. 428212761Sjkim 429212761SjkimAdded the ACPI_INLINE type to enhance the ACPICA configuration. The "inline" 430212761Sjkimkeyword is not standard across compilers, and this type allows inline to be 431212761Sjkimconfigured on a per-compiler basis. Lin Ming. 432212761Sjkim 433212761SjkimMade the system global AcpiGbl_SystemAwakeAndRunning publically available. 434212761SjkimAdded an extern for this boolean in acpixf.h. Some hosts utilize this value 435212761Sjkimduring suspend/restore operations. ACPICA BZ 869. 436212761Sjkim 437212761SjkimAll code that implements error/warning messages with the "ACPI:" prefix has 438212761Sjkimbeen moved to a new module, utxferror.c. 439212761Sjkim 440212761SjkimThe UINT64_OVERLAY was moved to utmath.c, which is the only module where it 441212761Sjkimis used. ACPICA BZ 829. Lin Ming, Bob Moore. 442212761Sjkim 443212761SjkimExample Code and Data Size: These are the sizes for the OS-independent 444212761Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 445220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 446212761Sjkimmuch larger code and data size. 447212761Sjkim 448212761Sjkim Previous Release: 449212761Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 450212761Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 451212761Sjkim Current Release: 452212761Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 453212761Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 454212761Sjkim 455212761Sjkim2) iASL Compiler/Disassembler and Tools: 456212761Sjkim 457212761SjkimiASL/Disassembler: Write ACPI errors to stderr instead of the output file. 458212761SjkimThis keeps the output files free of random error messages that may originate 459212761Sjkimfrom within the namespace/interpreter code. Used this opportunity to merge 460212761Sjkimall ACPI:-style messages into a single new module, utxferror.c. ACPICA BZ 461212761Sjkim866. Lin Ming, Bob Moore. 462212761Sjkim 463212761SjkimTools: update some printfs for ansi warnings on size_t. Handle width change 464212761Sjkimof size_t on 32-bit versus 64-bit generations. Lin Ming. 465212761Sjkim 466212761Sjkim---------------------------------------- 467210976Sjkim06 August 2010. Summary of changes for version 20100806: 468210976Sjkim 469210976Sjkim1) ACPI CA Core Subsystem: 470210976Sjkim 471210976SjkimDesigned and implemented a new host interface to the _OSI support code. This 472210976Sjkimwill allow the host to dynamically add or remove multiple _OSI strings, as 473210976Sjkimwell as install an optional handler that is called for each _OSI invocation. 474220663SjkimAlso added a new AML debugger command, 'osi' to display and modify the global 475210976Sjkim_OSI string table, and test support in the AcpiExec utility. See the ACPICA 476210976Sjkimreference manual for full details. Lin Ming, Bob Moore. ACPICA BZ 836. 477210976SjkimNew Functions: 478210976Sjkim AcpiInstallInterface - Add an _OSI string. 479210976Sjkim AcpiRemoveInterface - Delete an _OSI string. 480210976Sjkim AcpiInstallInterfaceHandler - Install optional _OSI handler. 481210976SjkimObsolete Functions: 482210976Sjkim AcpiOsValidateInterface - no longer used. 483210976SjkimNew Files: 484210976Sjkim source/components/utilities/utosi.c 485210976Sjkim 486210976SjkimRe-introduced the support to enable multi-byte transfers for Embedded 487210976SjkimController (EC) operation regions. A reported problem was found to be a bug 488210976Sjkimin the host OS, not in the multi-byte support. Previously, the maximum data 489210976Sjkimsize passed to the EC operation region handler was a single byte. There are 490210976Sjkimoften EC Fields larger than one byte that need to be transferred, and it is 491210976Sjkimuseful for the EC driver to lock these as a single transaction. This change 492210976Sjkimenables single transfers larger than 8 bits. This effectively changes the 493210976Sjkimaccess to the EC space from ByteAcc to AnyAcc, and will probably require 494210976Sjkimchanges to the host OS Embedded Controller driver to enable 16/32/64/256-bit 495210976Sjkimtransfers in addition to 8-bit transfers. Alexey Starikovskiy, Lin Ming. 496210976Sjkim 497210976SjkimFixed a problem with the prototype for AcpiOsReadPciConfiguration. The 498210976Sjkimprototype in acpiosxf.h had the output value pointer as a (void *). 499210976SjkimIt should be a (UINT64 *). This may affect some host OSL code. 500210976Sjkim 501210976SjkimFixed a couple problems with the recently modified Linux makefiles for iASL 502210976Sjkimand AcpiExec. These new makefiles place the generated object files in the 503220663Sjkimlocal directory so that there can be no collisions between the files that are 504210976Sjkimshared between them that are compiled with different options. 505210976Sjkim 506210976SjkimExample Code and Data Size: These are the sizes for the OS-independent 507210976Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 508220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 509210976Sjkimmuch larger code and data size. 510210976Sjkim 511210976Sjkim Previous Release: 512210976Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 513210976Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 514210976Sjkim Current Release: 515210976Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 516210976Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 517210976Sjkim 518210976Sjkim2) iASL Compiler/Disassembler and Tools: 519210976Sjkim 520210976SjkimiASL/Disassembler: Added a new option (-da, "disassemble all") to load the 521210976Sjkimnamespace from and disassemble an entire group of AML files. Useful for 522210976Sjkimloading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn) and 523210976Sjkimdisassembling with one simple command. ACPICA BZ 865. Lin Ming. 524210976Sjkim 525210976SjkimiASL: Allow multiple invocations of -e option. This change allows multiple 526210976Sjkimuses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ 834. 527210976SjkimLin Ming. 528210976Sjkim 529210976Sjkim---------------------------------------- 530209746Sjkim02 July 2010. Summary of changes for version 20100702: 531209746Sjkim 532209746Sjkim1) ACPI CA Core Subsystem: 533209746Sjkim 534209746SjkimImplemented several updates to the recently added GPE reference count 535209746Sjkimsupport. The model for "wake" GPEs is changing to give the host OS complete 536209746Sjkimcontrol of these GPEs. Eventually, the ACPICA core will not execute any _PRW 537209746Sjkimmethods, since the host already must execute them. Also, additional changes 538209746Sjkimwere made to help ensure that the reference counts are kept in proper 539209746Sjkimsynchronization with reality. Rafael J. Wysocki. 540209746Sjkim 541209746Sjkim1) Ensure that GPEs are not enabled twice during initialization. 542209746Sjkim2) Ensure that GPE enable masks stay in sync with the reference count. 543209746Sjkim3) Do not inadvertently enable GPEs when writing GPE registers. 544209746Sjkim4) Remove the internal wake reference counter and add new AcpiGpeWakeup 545209746Sjkiminterface. This interface will set or clear individual GPEs for wakeup. 546209746Sjkim5) Remove GpeType argument from AcpiEnable and AcpiDisable. These interfaces 547209746Sjkimare now used for "runtime" GPEs only. 548209746Sjkim 549220663SjkimChanged the behavior of the GPE install/remove handler interfaces. The GPE is 550209746Sjkimno longer disabled during this process, as it was found to cause problems on 551209746Sjkimsome machines. Rafael J. Wysocki. 552209746Sjkim 553209746SjkimReverted a change introduced in version 20100528 to enable Embedded 554220663SjkimController multi-byte transfers. This change was found to cause problems with 555209746SjkimIndex Fields and possibly Bank Fields. It will be reintroduced when these 556209746Sjkimproblems have been resolved. 557209746Sjkim 558209746SjkimFixed a problem with references to Alias objects within Package Objects. A 559209746Sjkimreference to an Alias within the definition of a Package was not always 560209746Sjkimresolved properly. Aliases to objects like Processors, Thermal zones, etc. 561220663Sjkimwere resolved to the actual object instead of a reference to the object as it 562209746Sjkimshould be. Package objects are only allowed to contain integer, string, 563209746Sjkimbuffer, package, and reference objects. Redhat bugzilla 608648. 564209746Sjkim 565209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 566209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 567220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 568209746Sjkimmuch larger code and data size. 569209746Sjkim 570209746Sjkim Previous Release: 571209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 572209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 573209746Sjkim Current Release: 574209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 575209746Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 576209746Sjkim 577209746Sjkim2) iASL Compiler/Disassembler and Tools: 578209746Sjkim 579209746SjkimiASL: Implemented a new compiler subsystem to allow definition and 580209746Sjkimcompilation of the non-AML ACPI tables such as FADT, MADT, SRAT, etc. These 581209746Sjkimare called "ACPI Data Tables", and the new compiler is the "Data Table 582209746SjkimCompiler". This compiler is intended to simplify the existing error-prone 583209746Sjkimprocess of creating these tables for the BIOS, as well as allowing the 584209746Sjkimdisassembly, modification, recompilation, and override of existing ACPI data 585209746Sjkimtables. See the iASL User Guide for detailed information. 586209746Sjkim 587209746SjkimiASL: Implemented a new Template Generator option in support of the new Data 588209746SjkimTable Compiler. This option will create examples of all known ACPI tables 589209746Sjkimthat can be used as the basis for table development. See the iASL 590209746Sjkimdocumentation and the -T option. 591209746Sjkim 592209746SjkimDisassembler and headers: Added support for the WDDT ACPI table (Watchdog 593209746SjkimDescriptor Table). 594209746Sjkim 595209746SjkimUpdated the Linux makefiles for iASL and AcpiExec to place the generated 596209746Sjkimobject files in the local directory so that there can be no collisions 597209746Sjkimbetween the shared files between them that are generated with different 598209746Sjkimoptions. 599209746Sjkim 600209746SjkimAdded support for Mac OS X in the Unix OSL used for iASL and AcpiExec. Use 601209746Sjkimthe #define __APPLE__ to enable this support. 602209746Sjkim 603209746Sjkim---------------------------------------- 604209746Sjkim28 May 2010. Summary of changes for version 20100528: 605209746Sjkim 606209746SjkimNote: The ACPI 4.0a specification was released on April 5, 2010 and is 607209746Sjkimavailable at www.acpi.info. This is primarily an errata release. 608209746Sjkim 609209746Sjkim1) ACPI CA Core Subsystem: 610209746Sjkim 611209746SjkimUndefined ACPI tables: We are looking for the definitions for the following 612209746SjkimACPI tables that have been seen in the field: ATKG, IEIT, GSCI. 613209746Sjkim 614209746SjkimImplemented support to enable multi-byte transfers for Embedded Controller 615209746Sjkim(EC) operation regions. Previously, the maximum data size passed to the EC 616209746Sjkimoperation region handler was a single byte. There are often EC Fields larger 617220663Sjkimthan one byte that need to be transferred, and it is useful for the EC driver 618209746Sjkimto lock these as a single transaction. This change enables single transfers 619209746Sjkimlarger than 8 bits. This effectively changes the access to the EC space from 620209746SjkimByteAcc to AnyAcc, and will probably require changes to the host OS Embedded 621209746SjkimController driver to enable 16/32/64/256-bit transfers in addition to 8-bit 622209746Sjkimtransfers. Alexey Starikovskiy, Lin Ming 623209746Sjkim 624209746SjkimImplemented a performance enhancement for namespace search and access. This 625209746Sjkimchange enhances the performance of namespace searches and walks by adding a 626209746Sjkimbackpointer to the parent in each namespace node. On large namespaces, this 627209746Sjkimchange can improve overall ACPI performance by up to 9X. Adding a pointer to 628209746Sjkimeach namespace node increases the overall size of the internal namespace by 629209746Sjkimabout 5%, since each namespace entry usually consists of both a namespace 630209746Sjkimnode and an ACPI operand object. However, this is the first growth of the 631209746Sjkimnamespace in ten years. ACPICA bugzilla 817. Alexey Starikovskiy. 632209746Sjkim 633209746SjkimImplemented a performance optimization that reduces the number of namespace 634220663Sjkimwalks. On control method exit, only walk the namespace if the method is known 635220663Sjkimto have created namespace objects outside of its local scope. Previously, the 636209746Sjkimentire namespace was traversed on each control method exit. This change can 637220663Sjkimimprove overall ACPI performance by up to 3X. Alexey Starikovskiy, Bob Moore. 638209746Sjkim 639220663SjkimAdded support to truncate I/O addresses to 16 bits for Windows compatibility. 640209746SjkimSome ASL code has been seen in the field that inadvertently has bits set 641209746Sjkimabove bit 15. This feature is optional and is enabled if the BIOS requests 642209746Sjkimany Windows OSI strings. It can also be enabled by the host OS. Matthew 643209746SjkimGarrett, Bob Moore. 644209746Sjkim 645209746SjkimAdded support to limit the maximum time for the ASL Sleep() operator. To 646209746Sjkimprevent accidental deep sleeps, limit the maximum time that Sleep() will 647209746Sjkimactually sleep. Configurable, the default maximum is two seconds. ACPICA 648209746Sjkimbugzilla 854. 649209746Sjkim 650209746SjkimAdded run-time validation support for the _WDG and_WED Microsoft predefined 651209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 652209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 653209746Sjkim 654209746SjkimExpanded all statistic counters used during namespace and device 655209746Sjkiminitialization from 16 to 32 bits in order to support very large namespaces. 656209746Sjkim 657220663SjkimReplaced all instances of %d in printf format specifiers with %u since nearly 658209746Sjkimall integers in ACPICA are unsigned. 659209746Sjkim 660220663SjkimFixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly returned 661209746Sjkimas AE_NO_HANDLER. 662209746Sjkim 663209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 664209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 665220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 666209746Sjkimmuch larger code and data size. 667209746Sjkim 668209746Sjkim Previous Release: 669209746Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 670209746Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 671209746Sjkim Current Release: 672209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 673209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 674209746Sjkim 675209746Sjkim2) iASL Compiler/Disassembler and Tools: 676209746Sjkim 677209746SjkimiASL: Added compiler support for the _WDG and_WED Microsoft predefined 678209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 679209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 680209746Sjkim 681209746SjkimAcpiExec: added option to disable the memory tracking mechanism. The -dt 682209746Sjkimoption will disable the tracking mechanism, which improves performance 683209746Sjkimconsiderably. 684209746Sjkim 685209746SjkimAcpiExec: Restructured the command line options into -d (disable) and -e 686209746Sjkim(enable) options. 687209746Sjkim 688209746Sjkim---------------------------------------- 689207344Sjkim28 April 2010. Summary of changes for version 20100428: 690207344Sjkim 691207344Sjkim1) ACPI CA Core Subsystem: 692207344Sjkim 693207344SjkimImplemented GPE support for dynamically loaded ACPI tables. For all GPEs, 694207344Sjkimincluding FADT-based and GPE Block Devices, execute any _PRW methods in the 695207344Sjkimnew table, and process any _Lxx/_Exx GPE methods in the new table. Any 696207344Sjkimruntime GPE that is referenced by an _Lxx/_Exx method in the new table is 697207344Sjkimimmediately enabled. Handles the FADT-defined GPEs as well as GPE Block 698207344SjkimDevices. Provides compatibility with other ACPI implementations. Two new 699220663Sjkimfiles added, evgpeinit.c and evgpeutil.c. ACPICA BZ 833. Lin Ming, Bob Moore. 700207344Sjkim 701207344SjkimFixed a regression introduced in version 20100331 within the table manager 702207344Sjkimwhere initial table loading could fail. This was introduced in the fix for 703207344SjkimAcpiReallocateRootTable. Also, renamed some of fields in the table manager 704207344Sjkimdata structures to clarify their meaning and use. 705207344Sjkim 706207344SjkimFixed a possible allocation overrun during internal object copy in 707207344SjkimAcpiUtCopySimpleObject. The original code did not correctly handle the case 708207344Sjkimwhere the object to be copied was a namespace node. Lin Ming. ACPICA BZ 847. 709207344Sjkim 710207344SjkimUpdated the allocation dump routine, AcpiUtDumpAllocation and fixed a 711220663Sjkimpossible access beyond end-of-allocation. Also, now fully validate descriptor 712207344Sjkim(size and type) before output. Lin Ming, Bob Moore. ACPICA BZ 847 713207344Sjkim 714207344SjkimExample Code and Data Size: These are the sizes for the OS-independent 715207344Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 716220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 717207344Sjkimmuch larger code and data size. 718207344Sjkim 719207344Sjkim Previous Release: 720207344Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 721207344Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 722207344Sjkim Current Release: 723207344Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 724207344Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 725207344Sjkim 726207344Sjkim2) iASL Compiler/Disassembler and Tools: 727207344Sjkim 728207344SjkimiASL: Implemented Min/Max/Len/Gran validation for address resource 729207344Sjkimdescriptors. This change implements validation for the address fields that 730207344Sjkimare common to all address-type resource descriptors. These checks are 731207344Sjkimimplemented: Checks for valid Min/Max, length within the Min/Max window, 732207344Sjkimvalid granularity, Min/Max a multiple of granularity, and _MIF/_MAF as per 733220663Sjkimtable 6-40 in the ACPI 4.0a specification. Also split the large aslrestype1.c 734207344Sjkimand aslrestype2.c files into five new files. ACPICA BZ 840. 735207344Sjkim 736207344SjkimiASL: Added support for the _Wxx predefined names. This support was missing 737207344Sjkimand these names were not recognized by the compiler as valid predefined 738207344Sjkimnames. ACPICA BZ 851. 739207344Sjkim 740207344SjkimiASL: Added an error for all predefined names that are defined to return no 741207344Sjkimvalue and thus must be implemented as Control Methods. These include all of 742207344Sjkimthe _Lxx, _Exx, _Wxx, and _Qxx names, as well as some other miscellaneous 743207344Sjkimnames such as _DIS, _INI, _IRC, _OFF, _ON, and _PSx. ACPICA BZ 850, 856. 744207344Sjkim 745207344SjkimiASL: Implemented the -ts option to emit hex AML data in ASL format, as an 746207344SjkimASL Buffer. Allows ACPI tables to be easily included within ASL files, to be 747207344Sjkimdynamically loaded via the Load() operator. Also cleaned up output for the - 748207344Sjkimta and -tc options. ACPICA BZ 853. 749207344Sjkim 750207344SjkimTests: Added a new file with examples of extended iASL error checking. 751207344SjkimDemonstrates the advanced error checking ability of the iASL compiler. 752207344SjkimAvailable at tests/misc/badcode.asl. 753207344Sjkim 754207344Sjkim---------------------------------------- 755206117Sjkim31 March 2010. Summary of changes for version 20100331: 756206117Sjkim 757206117Sjkim1) ACPI CA Core Subsystem: 758206117Sjkim 759206117SjkimCompleted a major update for the GPE support in order to improve support for 760206117Sjkimshared GPEs and to simplify both host OS and ACPICA code. Added a reference 761206117Sjkimcount mechanism to support shared GPEs that require multiple device drivers. 762206117SjkimSeveral external interfaces have changed. One external interface has been 763206117Sjkimremoved. One new external interface was added. Most of the GPE external 764206117Sjkiminterfaces now use the GPE spinlock instead of the events mutex (and the 765206117SjkimFlags parameter for many GPE interfaces has been removed.) See the updated 766206117SjkimACPICA Programmer Reference for details. Matthew Garrett, Bob Moore, Rafael 767206117SjkimWysocki. ACPICA BZ 831. 768206117Sjkim 769206117SjkimChanged: 770206117Sjkim AcpiEnableGpe, AcpiDisableGpe, AcpiClearGpe, AcpiGetGpeStatus 771206117SjkimRemoved: 772206117Sjkim AcpiSetGpeType 773206117SjkimNew: 774206117Sjkim AcpiSetGpe 775206117Sjkim 776206117SjkimImplemented write support for DataTable operation regions. These regions are 777220663Sjkimdefined via the DataTableRegion() operator. Previously, only read support was 778220663Sjkimimplemented. The ACPI specification allows DataTableRegions to be read/write, 779206117Sjkimhowever. 780206117Sjkim 781206117SjkimImplemented a new subsystem option to force a copy of the DSDT to local 782206117Sjkimmemory. Optionally copy the entire DSDT to local memory (instead of simply 783206117Sjkimmapping it.) There are some (albeit very rare) BIOSs that corrupt or replace 784206117Sjkimthe original DSDT, creating the need for this option. Default is FALSE, do 785206117Sjkimnot copy the DSDT. 786206117Sjkim 787206117SjkimImplemented detection of a corrupted or replaced DSDT. This change adds 788220663Sjkimsupport to detect a DSDT that has been corrupted and/or replaced from outside 789206117Sjkimthe OS (by firmware). This is typically catastrophic for the system, but has 790206117Sjkimbeen seen on some machines. Once this problem has been detected, the DSDT 791206117Sjkimcopy option can be enabled via system configuration. Lin Ming, Bob Moore. 792206117Sjkim 793206117SjkimFixed two problems with AcpiReallocateRootTable during the root table copy. 794206117SjkimWhen copying the root table to the new allocation, the length used was 795206117Sjkimincorrect. The new size was used instead of the current table size, meaning 796206117Sjkimtoo much data was copied. Also, the count of available slots for ACPI tables 797206117Sjkimwas not set correctly. Alexey Starikovskiy, Bob Moore. 798206117Sjkim 799206117SjkimExample Code and Data Size: These are the sizes for the OS-independent 800206117Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 801220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 802206117Sjkimmuch larger code and data size. 803206117Sjkim 804206117Sjkim Previous Release: 805206117Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 806206117Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 807206117Sjkim Current Release: 808206117Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 809206117Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 810206117Sjkim 811206117Sjkim2) iASL Compiler/Disassembler and Tools: 812206117Sjkim 813206117SjkimiASL: Implement limited typechecking for values returned from predefined 814206117Sjkimcontrol methods. The type of any returned static (unnamed) object is now 815206117Sjkimvalidated. For example, Return(1). ACPICA BZ 786. 816206117Sjkim 817220663SjkimiASL: Fixed a predefined name object verification regression. Fixes a problem 818206117Sjkimintroduced in version 20100304. An error is incorrectly generated if a 819206117Sjkimpredefined name is declared as a static named object with a value defined 820206117Sjkimusing the keywords "Zero", "One", or "Ones". Lin Ming. 821206117Sjkim 822206117SjkimiASL: Added Windows 7 support for the -g option (get local ACPI tables) by 823206117Sjkimreducing the requested registry access rights. ACPICA BZ 842. 824206117Sjkim 825206117SjkimDisassembler: fixed a possible fault when generating External() statements. 826206117SjkimIntroduced in commit ae7d6fd: Properly handle externals with parent-prefix 827206117Sjkim(carat). Fixes a string length allocation calculation. Lin Ming. 828206117Sjkim 829206117Sjkim---------------------------------------- 830204773Sjkim04 March 2010. Summary of changes for version 20100304: 831204773Sjkim 832204773Sjkim1) ACPI CA Core Subsystem: 833204773Sjkim 834204773SjkimFixed a possible problem with the AML Mutex handling function 835204773SjkimAcpiExReleaseMutex where the function could fault under the very rare 836220663Sjkimcondition when the interpreter has blocked, the interpreter lock is released, 837204773Sjkimthe interpreter is then reentered via the same thread, and attempts to 838220663Sjkimacquire an AML mutex that was previously acquired. FreeBSD report 140979. Lin 839204773SjkimMing. 840204773Sjkim 841204773SjkimImplemented additional configuration support for the AML "Debug Object". 842204773SjkimOutput from the debug object can now be enabled via a global variable, 843220663SjkimAcpiGbl_EnableAmlDebugObject. This will assist with remote machine debugging. 844204773SjkimThis debug output is now available in the release version of ACPICA instead 845204773Sjkimof just the debug version. Also, the entire debug output module can now be 846204773Sjkimconfigured out of the ACPICA build if desired. One new file added, 847204773Sjkimexecuter/exdebug.c. Lin Ming, Bob Moore. 848204773Sjkim 849204773SjkimAdded header support for the ACPI MCHI table (Management Controller Host 850220663SjkimInterface Table). This table was added in ACPI 4.0, but the defining document 851204773Sjkimhas only recently become available. 852204773Sjkim 853204773SjkimStandardized output of integer values for ACPICA warnings/errors. Always use 854204773Sjkim0x prefix for hex output, always use %u for unsigned integer decimal output. 855204773SjkimAffects ACPI_INFO, ACPI_ERROR, ACPI_EXCEPTION, and ACPI_WARNING (about 400 856204773Sjkiminvocations.) These invocations were converted from the original 857204773SjkimACPI_DEBUG_PRINT invocations and were not consistent. ACPICA BZ 835. 858204773Sjkim 859204773SjkimExample Code and Data Size: These are the sizes for the OS-independent 860204773Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 861220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 862204773Sjkimmuch larger code and data size. 863204773Sjkim 864204773Sjkim Previous Release: 865204773Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 866204773Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 867204773Sjkim Current Release: 868204773Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 869204773Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 870204773Sjkim 871204773Sjkim2) iASL Compiler/Disassembler and Tools: 872204773Sjkim 873204773SjkimiASL: Implemented typechecking support for static (non-control method) 874204773Sjkimpredefined named objects that are declared with the Name() operator. For 875204773Sjkimexample, the type of this object is now validated to be of type Integer: 876220663SjkimName(_BBN, 1). This change migrates the compiler to using the core predefined 877204773Sjkimname table instead of maintaining a local version. Added a new file, 878204773Sjkimaslpredef.c. ACPICA BZ 832. 879204773Sjkim 880204773SjkimDisassembler: Added support for the ACPI 4.0 MCHI table. 881204773Sjkim 882204773Sjkim---------------------------------------- 883202771Sjkim21 January 2010. Summary of changes for version 20100121: 884202771Sjkim 885202771Sjkim1) ACPI CA Core Subsystem: 886202771Sjkim 887202771SjkimAdded the 2010 copyright to all module headers and signons. This affects 888202771Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, the 889202771Sjkimtools/utilities, and the test suites. 890202771Sjkim 891220663SjkimImplemented a change to the AcpiGetDevices interface to eliminate unnecessary 892202771Sjkiminvocations of the _STA method. In the case where a specific _HID is 893202771Sjkimrequested, do not run _STA until a _HID match is found. This eliminates 894220663Sjkimpotentially dozens of _STA calls during a search for a particular device/HID, 895202771Sjkimwhich in turn can improve boot times. ACPICA BZ 828. Lin Ming. 896202771Sjkim 897220663SjkimImplemented an additional repair for predefined method return values. Attempt 898220663Sjkimto repair unexpected NULL elements within returned Package objects. Create an 899220663SjkimInteger of value zero, a NULL String, or a zero-length Buffer as appropriate. 900202771SjkimACPICA BZ 818. Lin Ming, Bob Moore. 901202771Sjkim 902202771SjkimRemoved the obsolete ACPI_INTEGER data type. This type was introduced as the 903202771Sjkimcode was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with 904202771Sjkim64-bit AML integers). It is now obsolete and this change removes it from the 905202771SjkimACPICA code base, replaced by UINT64. The original typedef has been retained 906202771Sjkimfor now for compatibility with existing device driver code. ACPICA BZ 824. 907202771Sjkim 908202771SjkimRemoved the unused UINT32_STRUCT type, and the obsolete Integer64 field in 909202771Sjkimthe parse tree object. 910202771Sjkim 911220663SjkimAdded additional warning options for the gcc-4 generation. Updated the source 912202771Sjkimaccordingly. This includes some code restructuring to eliminate unreachable 913202771Sjkimcode, elimination of some gotos, elimination of unused return values, some 914202771Sjkimadditional casting, and removal of redundant declarations. 915202771Sjkim 916202771SjkimExample Code and Data Size: These are the sizes for the OS-independent 917202771Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 918220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 919202771Sjkimmuch larger code and data size. 920202771Sjkim 921202771Sjkim Previous Release: 922202771Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 923202771Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 924202771Sjkim Current Release: 925202771Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 926202771Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 927202771Sjkim 928202771Sjkim2) iASL Compiler/Disassembler and Tools: 929202771Sjkim 930202771SjkimNo functional changes for this release. 931202771Sjkim 932202771Sjkim---------------------------------------- 933200553Sjkim14 December 2009. Summary of changes for version 20091214: 934200553Sjkim 935200553Sjkim1) ACPI CA Core Subsystem: 936200553Sjkim 937200553SjkimEnhanced automatic data type conversions for predefined name repairs. This 938200553Sjkimchange expands the automatic repairs/conversions for predefined name return 939200553Sjkimvalues to make Integers, Strings, and Buffers fully interchangeable. Also, a 940220663SjkimBuffer can be converted to a Package of Integers if necessary. The nsrepair.c 941200553Sjkimmodule was completely restructured. Lin Ming, Bob Moore. 942200553Sjkim 943220663SjkimImplemented automatic removal of null package elements during predefined name 944200553Sjkimrepairs. This change will automatically remove embedded and trailing NULL 945200553Sjkimpackage elements from returned package objects that are defined to contain a 946200553Sjkimvariable number of sub-packages. The driver is then presented with a package 947200553Sjkimwith no null elements to deal with. ACPICA BZ 819. 948200553Sjkim 949200553SjkimImplemented a repair for the predefined _FDE and _GTM names. The expected 950200553Sjkimreturn value for both names is a Buffer of 5 DWORDs. This repair fixes two 951200553Sjkimpossible problems (both seen in the field), where a package of integers is 952220663Sjkimreturned, or a buffer of BYTEs is returned. With assistance from Jung-uk Kim. 953200553Sjkim 954200553SjkimImplemented additional module-level code support. This change will properly 955200553Sjkimexecute module-level code that is not at the root of the namespace (under a 956200553SjkimDevice object, etc.). Now executes the code within the current scope instead 957200553Sjkimof the root. ACPICA BZ 762. Lin Ming. 958200553Sjkim 959200553SjkimFixed possible mutex acquisition errors when running _REG methods. Fixes a 960200553Sjkimproblem where mutex errors can occur when running a _REG method that is in 961200553Sjkimthe same scope as a method-defined operation region or an operation region 962200553Sjkimunder a module-level IF block. This type of code is rare, so the problem has 963200553Sjkimnot been seen before. ACPICA BZ 826. Lin Ming, Bob Moore. 964200553Sjkim 965200553SjkimFixed a possible memory leak during module-level code execution. An object 966200553Sjkimcould be leaked for each block of executed module-level code if the 967220663Sjkiminterpreter slack mode is enabled This change deletes any implicitly returned 968200553Sjkimobject from the module-level code block. Lin Ming. 969200553Sjkim 970200553SjkimRemoved messages for successful predefined repair(s). The repair mechanism 971200553Sjkimwas considered too wordy. Now, messages are only unconditionally emitted if 972200553Sjkimthe return object cannot be repaired. Existing messages for successful 973200553Sjkimrepairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827. 974200553Sjkim 975200553SjkimExample Code and Data Size: These are the sizes for the OS-independent 976200553Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 977220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 978200553Sjkimmuch larger code and data size. 979200553Sjkim 980200553Sjkim Previous Release: 981200553Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 982200553Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 983200553Sjkim Current Release: 984200553Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 985200553Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 986200553Sjkim 987200553Sjkim2) iASL Compiler/Disassembler and Tools: 988200553Sjkim 989220663SjkimiASL: Fixed a regression introduced in 20091112 where intermediate .SRC files 990200553Sjkimwere no longer automatically removed at the termination of the compile. 991200553Sjkim 992200553Sjkimacpiexec: Implemented the -f option to specify default region fill value. 993200553SjkimThis option specifies the value used to initialize buffers that simulate 994200553Sjkimoperation regions. Default value is zero. Useful for debugging problems that 995200553Sjkimdepend on a specific initial value for a region or field. 996200553Sjkim 997200553Sjkim---------------------------------------- 998199337Sjkim12 November 2009. Summary of changes for version 20091112: 999199337Sjkim 1000199337Sjkim1) ACPI CA Core Subsystem: 1001199337Sjkim 1002199337SjkimImplemented a post-order callback to AcpiWalkNamespace. The existing 1003199337Sjkiminterface only has a pre-order callback. This change adds an additional 1004199337Sjkimparameter for a post-order callback which will be more useful for bus scans. 1005199337SjkimACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference. 1006199337Sjkim 1007199337SjkimModified the behavior of the operation region memory mapping cache for 1008199337SjkimSystemMemory. Ensure that the memory mappings created for operation regions 1009199337Sjkimdo not cross 4K page boundaries. Crossing a page boundary while mapping 1010199337Sjkimregions can cause kernel warnings on some hosts if the pages have different 1011199337Sjkimattributes. Such regions are probably BIOS bugs, and this is the workaround. 1012199337SjkimLinux BZ 14445. Lin Ming. 1013199337Sjkim 1014199337SjkimImplemented an automatic repair for predefined methods that must return 1015220663Sjkimsorted lists. This change will repair (by sorting) packages returned by _ALR, 1016220663Sjkim_PSS, and _TSS. Drivers can now assume that the packages are correctly sorted 1017199337Sjkimand do not contain NULL package elements. Adds one new file, 1018199337Sjkimnamespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore. 1019199337Sjkim 1020199337SjkimFixed a possible fault during predefined name validation if a return Package 1021199337Sjkimobject contains NULL elements. Also adds a warning if a NULL element is 1022220663Sjkimfollowed by any non-null elements. ACPICA BZ 813, 814. Future enhancement may 1023199337Sjkiminclude repair or removal of all such NULL elements where possible. 1024199337Sjkim 1025199337SjkimImplemented additional module-level executable AML code support. This change 1026199337Sjkimwill execute module-level code that is not at the root of the namespace 1027220663Sjkim(under a Device object, etc.) at table load time. Module-level executable AML 1028199337Sjkimcode has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming. 1029199337Sjkim 1030199337SjkimImplemented a new internal function to create Integer objects. This function 1031199337Sjkimsimplifies miscellaneous object creation code. ACPICA BZ 823. 1032199337Sjkim 1033199337SjkimReduced the severity of predefined repair messages, Warning to Info. Since 1034199337Sjkimthe object was successfully repaired, a warning is too severe. Reduced to an 1035220663Sjkiminfo message for now. These messages may eventually be changed to debug-only. 1036199337SjkimACPICA BZ 812. 1037199337Sjkim 1038199337SjkimExample Code and Data Size: These are the sizes for the OS-independent 1039199337Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1040220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1041199337Sjkimmuch larger code and data size. 1042199337Sjkim 1043199337Sjkim Previous Release: 1044199337Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 1045199337Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 1046199337Sjkim Current Release: 1047199337Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 1048199337Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 1049199337Sjkim 1050199337Sjkim2) iASL Compiler/Disassembler and Tools: 1051199337Sjkim 1052199337SjkimiASL: Implemented Switch() with While(1) so that Break works correctly. This 1053199337Sjkimchange correctly implements the Switch operator with a surrounding While(1) 1054199337Sjkimso that the Break operator works as expected. ACPICA BZ 461. Lin Ming. 1055199337Sjkim 1056199337SjkimiASL: Added a message if a package initializer list is shorter than package 1057199337Sjkimlength. Adds a new remark for a Package() declaration if an initializer list 1058199337Sjkimexists, but is shorter than the declared length of the package. Although 1059199337Sjkimtechnically legal, this is probably a coding error and it is seen in the 1060199337Sjkimfield. ACPICA BZ 815. Lin Ming, Bob Moore. 1061199337Sjkim 1062220663SjkimiASL: Fixed a problem where the compiler could fault after the maximum number 1063199337Sjkimof errors was reached (200). 1064199337Sjkim 1065220663Sjkimacpixtract: Fixed a possible warning for pointer cast if the compiler warning 1066199337Sjkimlevel set very high. 1067199337Sjkim 1068199337Sjkim---------------------------------------- 1069198237Sjkim13 October 2009. Summary of changes for version 20091013: 1070197104Sjkim 1071197104Sjkim1) ACPI CA Core Subsystem: 1072197104Sjkim 1073198237SjkimFixed a problem where an Operation Region _REG method could be executed more 1074198237Sjkimthan once. If a custom address space handler is installed by the host before 1075198237Sjkimthe "initialize operation regions" phase of the ACPICA initialization, any 1076198237Sjkim_REG methods for that address space could be executed twice. This change 1077198237Sjkimfixes the problem. ACPICA BZ 427. Lin Ming. 1078198237Sjkim 1079198237SjkimFixed a possible memory leak for the Scope() ASL operator. When the exact 1080198237Sjkiminvocation of "Scope(\)" is executed (change scope to root), one internal 1081198237Sjkimoperand object was leaked. Lin Ming. 1082198237Sjkim 1083198237SjkimImplemented a run-time repair for the _MAT predefined method. If the _MAT 1084198237Sjkimreturn value is defined as a Field object in the AML, and the field 1085220663Sjkimsize is less than or equal to the default width of an integer (32 or 64),_MAT 1086198237Sjkimcan incorrectly return an Integer instead of a Buffer. ACPICA now 1087198237Sjkimautomatically repairs this problem. ACPICA BZ 810. 1088198237Sjkim 1089198237SjkimImplemented a run-time repair for the _BIF and _BIX predefined methods. The 1090198237Sjkim"OEM Information" field is often incorrectly returned as an Integer with 1091198237Sjkimvalue zero if the field is not supported by the platform. This is due to an 1092198237Sjkimambiguity in the ACPI specification. The field should always be a string. 1093198237SjkimACPICA now automatically repairs this problem by returning a NULL string 1094198237Sjkimwithin the returned Package. ACPICA BZ 807. 1095198237Sjkim 1096198237SjkimExample Code and Data Size: These are the sizes for the OS-independent 1097198237Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1098220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1099198237Sjkimmuch larger code and data size. 1100198237Sjkim 1101198237Sjkim Previous Release: 1102198237Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 1103198237Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 1104198237Sjkim Current Release: 1105198237Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 1106198237Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 1107198237Sjkim 1108198237Sjkim2) iASL Compiler/Disassembler and Tools: 1109198237Sjkim 1110198237SjkimDisassembler: Fixed a problem where references to external symbols that 1111198237Sjkimcontained one or more parent-prefixes (carats) were not handled correctly, 1112198237Sjkimpossibly causing a fault. ACPICA BZ 806. Lin Ming. 1113198237Sjkim 1114198237SjkimDisassembler: Restructured the code so that all functions that handle 1115198237Sjkimexternal symbols are in a single module. One new file is added, 1116198237Sjkimcommon/dmextern.c. 1117198237Sjkim 1118198237SjkimAML Debugger: Added a max count argument for the Batch command (which 1119198237Sjkimexecutes multiple predefined methods within the namespace.) 1120198237Sjkim 1121198237SjkimiASL: Updated the compiler documentation (User Reference.) Available at 1122198237Sjkimhttp://www.acpica.org/documentation/. ACPICA BZ 750. 1123198237Sjkim 1124198237SjkimAcpiXtract: Updated for Lint and other formatting changes. Close all open 1125198237Sjkimfiles. 1126198237Sjkim 1127198237Sjkim---------------------------------------- 1128198237Sjkim03 September 2009. Summary of changes for version 20090903: 1129198237Sjkim 1130198237Sjkim1) ACPI CA Core Subsystem: 1131198237Sjkim 1132197104SjkimFor Windows Vista compatibility, added the automatic execution of an _INI 1133197104Sjkimmethod located at the namespace root (\_INI). This method is executed at 1134197104Sjkimtable load time. This support is in addition to the automatic execution of 1135197104Sjkim\_SB._INI. Lin Ming. 1136197104Sjkim 1137197104SjkimFixed a possible memory leak in the interpreter for AML package objects if 1138197104Sjkimthe package initializer list is longer than the defined size of the package. 1139197104SjkimThis apparently can only happen if the BIOS changes the package size on the 1140197104Sjkimfly (seen in a _PSS object), as ASL compilers do not allow this. The 1141220663Sjkiminterpreter will truncate the package to the defined size (and issue an error 1142220663Sjkimmessage), but previously could leave the extra objects undeleted if they were 1143197104Sjkimpre-created during the argument processing (such is the case if the package 1144197104Sjkimconsists of a number of sub-packages as in the _PSS.) ACPICA BZ 805. 1145197104Sjkim 1146197104SjkimFixed a problem seen when a Buffer or String is stored to itself via ASL. 1147197104SjkimThis has been reported in the field. Previously, ACPICA would zero out the 1148197104Sjkimbuffer/string. Now, the operation is treated as a noop. Provides Windows 1149197104Sjkimcompatibility. ACPICA BZ 803. Lin Ming. 1150197104Sjkim 1151197104SjkimRemoved an extraneous error message for ASL constructs of the form 1152197104SjkimStore(LocalX,LocalX) when LocalX is uninitialized. These curious statements 1153197104Sjkimare seen in many BIOSs and are once again treated as NOOPs and no error is 1154197104Sjkimemitted when they are encountered. ACPICA BZ 785. 1155197104Sjkim 1156197104SjkimFixed an extraneous warning message if a _DSM reserved method returns a 1157197104SjkimPackage object. _DSM can return any type of object, so validation on the 1158197104Sjkimreturn type cannot be performed. ACPICA BZ 802. 1159197104Sjkim 1160197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 1161197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1162220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1163197104Sjkimmuch larger code and data size. 1164197104Sjkim 1165197104Sjkim Previous Release: 1166197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 1167197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 1168197104Sjkim Current Release: 1169197104Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 1170197104Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 1171197104Sjkim 1172197104Sjkim2) iASL Compiler/Disassembler and Tools: 1173197104Sjkim 1174197104SjkimiASL: Fixed a problem with the use of the Alias operator and Resource 1175197104SjkimTemplates. The correct alias is now constructed and no error is emitted. 1176197104SjkimACPICA BZ 738. 1177197104Sjkim 1178197104SjkimiASL: Implemented the -I option to specify additional search directories for 1179197104Sjkiminclude files. Allows multiple additional search paths for include files. 1180197104SjkimDirectories are searched in the order specified on the command line (after 1181197104Sjkimthe local directory is searched.) ACPICA BZ 800. 1182197104Sjkim 1183197104SjkimiASL: Fixed a problem where the full pathname for include files was not 1184197104Sjkimemitted for warnings/errors. This caused the IDE support to not work 1185197104Sjkimproperly. ACPICA BZ 765. 1186197104Sjkim 1187197104SjkimiASL: Implemented the -@ option to specify a Windows-style response file 1188197104Sjkimcontaining additional command line options. ACPICA BZ 801. 1189197104Sjkim 1190197104SjkimAcpiExec: Added support to load multiple AML files simultaneously (such as a 1191197104SjkimDSDT and multiple SSDTs). Also added support for wildcards within the AML 1192197104Sjkimpathname. These features allow all machine tables to be easily loaded and 1193197104Sjkimdebugged together. ACPICA BZ 804. 1194197104Sjkim 1195197104SjkimDisassembler: Added missing support for disassembly of HEST table Error Bank 1196197104Sjkimsubtables. 1197197104Sjkim 1198197104Sjkim---------------------------------------- 1199197104Sjkim30 July 2009. Summary of changes for version 20090730: 1200197104Sjkim 1201197104SjkimThe ACPI 4.0 implementation for ACPICA is complete with this release. 1202197104Sjkim 1203197104Sjkim1) ACPI CA Core Subsystem: 1204197104Sjkim 1205197104SjkimACPI 4.0: Added header file support for all new and changed ACPI tables. 1206197104SjkimCompletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new 1207197104Sjkimfor ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, 1208197104SjkimEINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There 1209197104Sjkimhave been some ACPI 4.0 changes to other existing tables. Split the large 1210197104Sjkimactbl1.h header into the existing actbl2.h header. ACPICA BZ 774. 1211197104Sjkim 1212220663SjkimACPI 4.0: Implemented predefined name validation for all new names. There are 1213220663Sjkim31 new names in ACPI 4.0. The predefined validation module was split into two 1214197104Sjkimfiles. The new file is namespace/nsrepair.c. ACPICA BZ 770. 1215197104Sjkim 1216197104SjkimImplemented support for so-called "module-level executable code". This is 1217220663Sjkimexecutable AML code that exists outside of any control method and is intended 1218220663Sjkimto be executed at table load time. Although illegal since ACPI 2.0, this type 1219197104Sjkimof code still exists and is apparently still being created. Blocks of this 1220197104Sjkimcode are now detected and executed as intended. Currently, the code blocks 1221197104Sjkimmust exist under either an If, Else, or While construct; these are the 1222197104Sjkimtypical cases seen in the field. ACPICA BZ 762. Lin Ming. 1223197104Sjkim 1224197104SjkimImplemented an automatic dynamic repair for predefined names that return 1225197104Sjkimnested Package objects. This applies to predefined names that are defined to 1226197104Sjkimreturn a variable-length Package of sub-packages. If the number of sub- 1227197104Sjkimpackages is one, BIOS code is occasionally seen that creates a simple single 1228197104Sjkimpackage with no sub-packages. This code attempts to fix the problem by 1229197104Sjkimwrapping a new package object around the existing package. These methods can 1230197104Sjkimbe repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ 1231197104Sjkim790. 1232197104Sjkim 1233197104SjkimFixed a regression introduced in 20090625 for the AcpiGetDevices interface. 1234220663SjkimThe _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA 1235197104SjkimBZ 793. 1236197104Sjkim 1237197104SjkimFixed a problem with AcpiReset where the reset would silently fail if the 1238197104Sjkimregister was one of the protected I/O ports. AcpiReset now bypasses the port 1239197104Sjkimvalidation mechanism. This may eventually be driven into the AcpiRead/Write 1240197104Sjkiminterfaces. 1241197104Sjkim 1242197104SjkimFixed a regression related to the recent update of the AcpiRead/Write 1243197104Sjkiminterfaces. A sleep/suspend could fail if the optional PM2 Control register 1244197104Sjkimdoes not exist during an attempt to write the Bus Master Arbitration bit. 1245197104Sjkim(However, some hosts already delete the code that writes this bit, and the 1246197104Sjkimcode may in fact be obsolete at this date.) ACPICA BZ 799. 1247197104Sjkim 1248220663SjkimFixed a problem where AcpiTerminate could fault if inadvertently called twice 1249197104Sjkimin succession. ACPICA BZ 795. 1250197104Sjkim 1251197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 1252197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1253220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1254197104Sjkimmuch larger code and data size. 1255197104Sjkim 1256197104Sjkim Previous Release: 1257197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 1258197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 1259197104Sjkim Current Release: 1260197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 1261197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 1262197104Sjkim 1263197104Sjkim2) iASL Compiler/Disassembler and Tools: 1264197104Sjkim 1265197104SjkimACPI 4.0: Implemented disassembler support for all new ACPI tables and 1266197104Sjkimchanges to existing tables. ACPICA BZ 775. 1267197104Sjkim 1268197104Sjkim---------------------------------------- 1269197104Sjkim25 June 2009. Summary of changes for version 20090625: 1270197104Sjkim 1271197104SjkimThe ACPI 4.0 Specification was released on June 16 and is available at 1272197104Sjkimwww.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will 1273197104Sjkimcontinue for the next few releases. 1274197104Sjkim 1275197104Sjkim1) ACPI CA Core Subsystem: 1276197104Sjkim 1277197104SjkimACPI 4.0: Implemented interpreter support for the IPMI operation region 1278197104Sjkimaddress space. Includes support for bi-directional data buffers and an IPMI 1279197104Sjkimaddress space handler (to be installed by an IPMI device driver.) ACPICA BZ 1280197104Sjkim773. Lin Ming. 1281197104Sjkim 1282197104SjkimACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes 1283197104Sjkimsupport in both the header files and the disassembler. 1284197104Sjkim 1285197104SjkimCompleted a major update for the AcpiGetObjectInfo external interface. 1286197104SjkimChanges include: 1287197104Sjkim - Support for variable, unlimited length HID, UID, and CID strings. 1288197104Sjkim - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) 1289197104Sjkim - Call the _SxW power methods on behalf of a device object. 1290197104Sjkim - Determine if a device is a PCI root bridge. 1291197104Sjkim - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. 1292197104SjkimThese changes will require an update to all callers of this interface. See 1293197104Sjkimthe updated ACPICA Programmer Reference for details. One new source file has 1294197104Sjkimbeen added - utilities/utids.c. ACPICA BZ 368, 780. 1295197104Sjkim 1296197104SjkimUpdated the AcpiRead and AcpiWrite external interfaces to support 64-bit 1297197104Sjkimtransfers. The Value parameter has been extended from 32 bits to 64 bits in 1298220663Sjkimorder to support new ACPI 4.0 tables. These changes will require an update to 1299197104Sjkimall callers of these interfaces. See the ACPICA Programmer Reference for 1300197104Sjkimdetails. ACPICA BZ 768. 1301197104Sjkim 1302197104SjkimFixed several problems with AcpiAttachData. The handler was not invoked when 1303197104Sjkimthe host node was deleted. The data sub-object was not automatically deleted 1304197104Sjkimwhen the host node was deleted. The interface to the handler had an unused 1305197104Sjkimparameter, this was removed. ACPICA BZ 778. 1306197104Sjkim 1307197104SjkimEnhanced the function that dumps ACPI table headers. All non-printable 1308197104Sjkimcharacters in the string fields are now replaced with '?' (Signature, OemId, 1309197104SjkimOemTableId, and CompilerId.) ACPI tables with non-printable characters in 1310197104Sjkimthese fields are occasionally seen in the field. ACPICA BZ 788. 1311197104Sjkim 1312197104SjkimFixed a problem with predefined method repair code where the code that 1313197104Sjkimattempts to repair/convert an object of incorrect type is only executed on 1314197104Sjkimthe first time the predefined method is called. The mechanism that disables 1315197104Sjkimwarnings on subsequent calls was interfering with the repair mechanism. 1316197104SjkimACPICA BZ 781. 1317197104Sjkim 1318197104SjkimFixed a possible memory leak in the predefined validation/repair code when a 1319197104Sjkimbuffer is automatically converted to an expected string object. 1320197104Sjkim 1321197104SjkimRemoved obsolete 16-bit files from the distribution and from the current git 1322197104Sjkimtree head. ACPICA BZ 776. 1323197104Sjkim 1324197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 1325197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1326220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1327197104Sjkimmuch larger code and data size. 1328197104Sjkim 1329197104Sjkim Previous Release: 1330197104Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 1331197104Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 1332197104Sjkim Current Release: 1333197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 1334197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 1335197104Sjkim 1336197104Sjkim2) iASL Compiler/Disassembler and Tools: 1337197104Sjkim 1338197104SjkimACPI 4.0: iASL and Disassembler - implemented support for the new IPMI 1339197104Sjkimoperation region keyword. ACPICA BZ 771, 772. Lin Ming. 1340197104Sjkim 1341197104SjkimACPI 4.0: iASL - implemented compile-time validation support for all new 1342197104Sjkimpredefined names and control methods (31 total). ACPICA BZ 769. 1343197104Sjkim 1344197104Sjkim---------------------------------------- 1345193267Sjkim21 May 2009. Summary of changes for version 20090521: 1346193267Sjkim 1347193267Sjkim1) ACPI CA Core Subsystem: 1348193267Sjkim 1349193267SjkimDisabled the preservation of the SCI enable bit in the PM1 control register. 1350220663SjkimThe SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be 1351193267Sjkima "preserved" bit - "OSPM always preserves this bit position", section 1352193267Sjkim4.7.3.2.1. However, some machines fail if this bit is in fact preserved 1353193267Sjkimbecause the bit needs to be explicitly set by the OS as a workaround. No 1354193267Sjkimmachines fail if the bit is not preserved. Therefore, ACPICA no longer 1355193267Sjkimattempts to preserve this bit. 1356193267Sjkim 1357193267SjkimFixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or 1358193267Sjkimincorrectly formed _PRT package could cause a fault. Added validation to 1359193267Sjkimensure that each package element is actually a sub-package. 1360193267Sjkim 1361193267SjkimImplemented a new interface to install or override a single control method, 1362220663SjkimAcpiInstallMethod. This interface is useful when debugging in order to repair 1363193267Sjkiman existing method or to install a missing method without having to override 1364193267Sjkimthe entire ACPI table. See the ACPICA Programmer Reference for use and 1365193267Sjkimexamples. Lin Ming, Bob Moore. 1366193267Sjkim 1367193267SjkimFixed several reference count issues with the DdbHandle object that is 1368193267Sjkimcreated from a Load or LoadTable operator. Prevent premature deletion of the 1369193267Sjkimobject. Also, mark the object as invalid once the table has been unloaded. 1370193267SjkimThis is needed because the handle itself may not be deleted after the table 1371193267Sjkimunload, depending on whether it has been stored in a named object by the 1372193267Sjkimcaller. Lin Ming. 1373193267Sjkim 1374193267SjkimFixed a problem with Mutex Sync Levels. Fixed a problem where if multiple 1375193267Sjkimmutexes of the same sync level are acquired but then not released in strict 1376220663Sjkimopposite order, the internally maintained Current Sync Level becomes confused 1377193267Sjkimand can cause subsequent execution errors. ACPICA BZ 471. 1378193267Sjkim 1379193267SjkimChanged the allowable release order for ASL mutex objects. The ACPI 4.0 1380193267Sjkimspecification has been changed to make the SyncLevel for mutex objects more 1381193267Sjkimuseful. When releasing a mutex, the SyncLevel of the mutex must now be the 1382193267Sjkimsame as the current sync level. This makes more sense than the previous rule 1383193267Sjkim(SyncLevel less than or equal). This change updates the code to match the 1384193267Sjkimspecification. 1385193267Sjkim 1386193267SjkimFixed a problem with the local version of the AcpiOsPurgeCache function. The 1387193267Sjkim(local) cache must be locked during all cache object deletions. Andrew 1388193267SjkimBaumann. 1389193267Sjkim 1390193267SjkimUpdated the Load operator to use operation region interfaces. This replaces 1391193267Sjkimdirect memory mapping with region access calls. Now, all region accesses go 1392193267Sjkimthrough the installed region handler as they should. 1393193267Sjkim 1394193267SjkimSimplified and optimized the NsGetNextNode function. Reduced parameter count 1395193267Sjkimand reduced code for this frequently used function. 1396193267Sjkim 1397193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1398193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1399220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1400193267Sjkimmuch larger code and data size. 1401193267Sjkim 1402193267Sjkim Previous Release: 1403193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1404193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1405193267Sjkim Current Release: 1406193267Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 1407193267Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 1408193267Sjkim 1409193267Sjkim2) iASL Compiler/Disassembler and Tools: 1410193267Sjkim 1411193267SjkimDisassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems 1412193267Sjkimwith sub-table disassembly and handling invalid sub-tables. Attempt recovery 1413193267Sjkimafter an invalid sub-table ID. 1414193267Sjkim 1415193267Sjkim---------------------------------------- 1416193267Sjkim22 April 2009. Summary of changes for version 20090422: 1417193267Sjkim 1418193267Sjkim1) ACPI CA Core Subsystem: 1419193267Sjkim 1420193267SjkimFixed a compatibility issue with the recently released I/O port protection 1421193267Sjkimmechanism. For windows compatibility, 1) On a port protection violation, 1422193267Sjkimsimply ignore the request and do not return an exception (allow the control 1423193267Sjkimmethod to continue execution.) 2) If only part of the request overlaps a 1424220663Sjkimprotected port, read/write the individual ports that are not protected. Linux 1425193267SjkimBZ 13036. Lin Ming 1426193267Sjkim 1427220663SjkimEnhanced the execution of the ASL/AML BreakPoint operator so that it actually 1428193267Sjkimbreaks into the AML debugger if the debugger is present. This matches the 1429193267SjkimACPI-defined behavior. 1430193267Sjkim 1431193267SjkimFixed several possible warnings related to the use of the configurable 1432193267SjkimACPI_THREAD_ID. This type can now be configured as either an integer or a 1433193267Sjkimpointer with no warnings. Also fixes several warnings in printf-like 1434193267Sjkimstatements for the 64-bit build when the type is configured as a pointer. 1435193267SjkimACPICA BZ 766, 767. 1436193267Sjkim 1437193267SjkimFixed a number of possible warnings when compiling with gcc 4+ (depending on 1438193267Sjkimwarning options.) Examples include printf formats, aliasing, unused globals, 1439193267Sjkimmissing prototypes, missing switch default statements, use of non-ANSI 1440220663Sjkimlibrary functions, use of non-ANSI constructs. See generate/unix/Makefile for 1441193267Sjkima list of warning options used with gcc 3 and 4. ACPICA BZ 735. 1442193267Sjkim 1443193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1444193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1445220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1446193267Sjkimmuch larger code and data size. 1447193267Sjkim 1448193267Sjkim Previous Release: 1449193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1450193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1451193267Sjkim Current Release: 1452193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1453193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1454193267Sjkim 1455193267Sjkim2) iASL Compiler/Disassembler and Tools: 1456193267Sjkim 1457220663SjkimiASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on 1458193267Sjkimthe 64-bit build. 1459193267Sjkim 1460220663SjkimiASL: Fixed a problem where the Unix/Linux versions of the compiler could not 1461193267Sjkimcorrectly digest Windows/DOS formatted files (with CR/LF). 1462193267Sjkim 1463193267SjkimiASL: Added a new option for "quiet mode" (-va) that produces only the 1464193267Sjkimcompilation summary, not individual errors and warnings. Useful for large 1465193267Sjkimbatch compilations. 1466193267Sjkim 1467193267SjkimAcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex 1468193267Sjkimtimeout that can be used to detect hang conditions during execution of AML 1469193267Sjkimcode (includes both internal semaphores and AML-defined mutexes and events.) 1470193267Sjkim 1471193267SjkimAdded new makefiles for the generation of acpica in a generic unix-like 1472193267Sjkimenvironment. These makefiles are intended to generate the acpica tools and 1473193267Sjkimutilities from the original acpica git source tree structure. 1474193267Sjkim 1475193267SjkimTest Suites: Updated and cleaned up the documentation files. Updated the 1476193267Sjkimcopyrights to 2009, affecting all source files. Use the new version of iASL 1477193267Sjkimwith quiet mode. Increased the number of available semaphores in the Windows 1478193267SjkimOSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added 1479193267Sjkiman alternate implementation of the semaphore timeout to allow aslts to 1480193267Sjkimexecute fully on Cygwin. 1481193267Sjkim 1482193267Sjkim---------------------------------------- 1483193267Sjkim20 March 2009. Summary of changes for version 20090320: 1484193267Sjkim 1485193267Sjkim1) ACPI CA Core Subsystem: 1486193267Sjkim 1487193267SjkimFixed a possible race condition between AcpiWalkNamespace and dynamic table 1488220663Sjkimunloads. Added a reader/writer locking mechanism to allow multiple concurrent 1489220663Sjkimnamespace walks (readers), but block a dynamic table unload until it can gain 1490193267Sjkimexclusive write access to the namespace. This fixes a problem where a table 1491193267Sjkimunload could (possibly catastrophically) delete the portion of the namespace 1492193267Sjkimthat is currently being examined by a walk. Adds a new file, utlock.c, that 1493193267Sjkimimplements the reader/writer lock mechanism. ACPICA BZ 749. 1494193267Sjkim 1495193267SjkimFixed a regression introduced in version 20090220 where a change to the FADT 1496193267Sjkimhandling could cause the ACPICA subsystem to access non-existent I/O ports. 1497193267Sjkim 1498193267SjkimModified the handling of FADT register and table (FACS/DSDT) addresses. The 1499193267SjkimFADT can contain both 32-bit and 64-bit versions of these addresses. 1500193267SjkimPreviously, the 64-bit versions were favored, meaning that if both 32 and 64 1501193267Sjkimversions were valid, but not equal, the 64-bit version was used. This was 1502193267Sjkimfound to cause some machines to fail. Now, in this case, the 32-bit version 1503193267Sjkimis used instead. This now matches the Windows behavior. 1504193267Sjkim 1505193267SjkimImplemented a new mechanism to protect certain I/O ports. Provides Microsoft 1506193267Sjkimcompatibility and protects the standard PC I/O ports from access via AML 1507193267Sjkimcode. Adds a new file, hwvalid.c 1508193267Sjkim 1509193267SjkimFixed a possible extraneous warning message from the FADT support. The 1510193267Sjkimmessage warns of a 32/64 length mismatch between the legacy and GAS 1511193267Sjkimdefinitions for a register. 1512193267Sjkim 1513193267SjkimRemoved the obsolete AcpiOsValidateAddress OSL interface. This interface is 1514193267Sjkimmade obsolete by the port protection mechanism above. It was previously used 1515193267Sjkimto validate the entire address range of an operation region, which could be 1516193267Sjkimincorrect if the range included illegal ports, but fields within the 1517193267Sjkimoperation region did not actually access those ports. Validation is now 1518193267Sjkimperformed on a per-field basis instead of the entire region. 1519193267Sjkim 1520193267SjkimModified the handling of the PM1 Status Register ignored bit (bit 11.) 1521193267SjkimIgnored bits must be "preserved" according to the ACPI spec. Usually, this 1522193267Sjkimmeans a read/modify/write when writing to the register. However, for status 1523220663Sjkimregisters, writing a one means clear the event. Writing a zero means preserve 1524193267Sjkimthe event (do not clear.) This behavior is clarified in the ACPI 4.0 spec, 1525193267Sjkimand the ACPICA code now simply always writes a zero to the ignored bit. 1526193267Sjkim 1527193267SjkimModified the handling of ignored bits for the PM1 A/B Control Registers. As 1528193267Sjkimper the ACPI specification, for the control registers, preserve 1529193267Sjkim(read/modify/write) all bits that are defined as either reserved or ignored. 1530193267Sjkim 1531193267SjkimUpdated the handling of write-only bits in the PM1 A/B Control Registers. 1532193267SjkimWhen reading the register, zero the write-only bits as per the ACPI spec. 1533193267SjkimACPICA BZ 443. Lin Ming. 1534193267Sjkim 1535193267SjkimRemoved "Linux" from the list of supported _OSI strings. Linux no longer 1536193267Sjkimwants to reply true to this request. The Windows strings are the only paths 1537193267Sjkimthrough the AML that are tested and known to work properly. 1538193267Sjkim 1539193267Sjkim Previous Release: 1540193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1541193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1542193267Sjkim Current Release: 1543193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1544193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1545193267Sjkim 1546193267Sjkim2) iASL Compiler/Disassembler and Tools: 1547193267Sjkim 1548193267SjkimAcpiexec: Split the large aeexec.c file into two new files, aehandlers.c and 1549193267Sjkimaetables.c 1550193267Sjkim 1551193267Sjkim---------------------------------------- 1552193267Sjkim20 February 2009. Summary of changes for version 20090220: 1553193267Sjkim 1554193267Sjkim1) ACPI CA Core Subsystem: 1555193267Sjkim 1556193267SjkimOptimized the ACPI register locking. Removed locking for reads from the ACPI 1557193267Sjkimbit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is 1558193267Sjkimnot required when reading the single-bit registers. The 1559193267SjkimAcpiGetRegisterUnlocked function is no longer needed and has been removed. 1560193267SjkimThis will improve performance for reads on these registers. ACPICA BZ 760. 1561193267Sjkim 1562193267SjkimFixed the parameter validation for AcpiRead/Write. Now return 1563220663SjkimAE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if 1564193267Sjkimthe register has an address of zero. Previously, these cases simply returned 1565193267SjkimAE_OK. For optional registers such as PM1B status/enable/control, the caller 1566193267Sjkimshould check for a valid register address before calling. ACPICA BZ 748. 1567193267Sjkim 1568193267SjkimRenamed the external ACPI bit register access functions. Renamed 1569193267SjkimAcpiGetRegister and AcpiSetRegister to clarify the purpose of these 1570193267Sjkimfunctions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister. 1571193267SjkimAlso, restructured the code for these functions by simplifying the code path 1572193267Sjkimand condensing duplicate code to reduce code size. 1573193267Sjkim 1574193267SjkimAdded new functions to transparently handle the possibly split PM1 A/B 1575193267Sjkimregisters. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions 1576220663Sjkimnow handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ 1577193267Sjkim746. 1578193267Sjkim 1579193267SjkimAdded a function to handle the PM1 control registers, AcpiHwWritePm1Control. 1580220663SjkimThis function writes both of the PM1 control registers (A/B). These registers 1581193267Sjkimare different than the PM1 A/B status and enable registers in that different 1582193267Sjkimvalues can be written to the A/B registers. Most notably, the SLP_TYP bits 1583220663Sjkimcan be different, as per the values returned from the _Sx predefined methods. 1584193267Sjkim 1585193267SjkimRemoved an extra register write within AcpiHwClearAcpiStatus. This function 1586193267Sjkimwas writing an optional PM1B status register twice. The existing call to the 1587193267Sjkimlow-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B 1588193267Sjkimregister. ACPICA BZ 751. 1589193267Sjkim 1590220663SjkimSplit out the PM1 Status registers from the FADT. Added new globals for these 1591193267Sjkimregisters (A/B), similar to the way the PM1 Enable registers are handled. 1592193267SjkimInstead of overloading the FADT Event Register blocks. This makes the code 1593193267Sjkimclearer and less prone to error. 1594193267Sjkim 1595220663SjkimFixed the warning message for when the platform contains too many ACPI tables 1596220663Sjkimfor the default size of the global root table data structure. The calculation 1597193267Sjkimfor the truncation value was incorrect. 1598193267Sjkim 1599193267SjkimRemoved the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this 1600193267Sjkimobsolete macro, since it is now a simple reference to ->common.type. There 1601193267Sjkimwere about 150 invocations of the macro across 41 files. ACPICA BZ 755. 1602193267Sjkim 1603193267SjkimRemoved the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as 1604193267SjkimTYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to 1605193267Sjkimsimply SLEEP_TYPE. ACPICA BZ 754. 1606193267Sjkim 1607193267SjkimConditionally compile the AcpiSetFirmwareWakingVector64 function. This 1608193267Sjkimfunction is only needed on 64-bit host operating systems and is thus not 1609193267Sjkimincluded for 32-bit hosts. 1610193267Sjkim 1611220663SjkimDebug output: print the input and result for invocations of the _OSI reserved 1612193267Sjkimcontrol method via the ACPI_LV_INFO debug level. Also, reduced some of the 1613193267Sjkimverbosity of this debug level. Len Brown. 1614193267Sjkim 1615193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1616193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1617220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1618193267Sjkimmuch larger code and data size. 1619193267Sjkim 1620193267Sjkim Previous Release: 1621193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1622193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1623193267Sjkim Current Release: 1624193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1625193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1626193267Sjkim 1627193267Sjkim2) iASL Compiler/Disassembler and Tools: 1628193267Sjkim 1629193267SjkimDisassembler: Decode the FADT PM_Profile field. Emit ascii names for the 1630193267Sjkimvarious legal performance profiles. 1631193267Sjkim 1632193267Sjkim---------------------------------------- 1633193267Sjkim23 January 2009. Summary of changes for version 20090123: 1634193267Sjkim 1635193267Sjkim1) ACPI CA Core Subsystem: 1636193267Sjkim 1637193267SjkimAdded the 2009 copyright to all module headers and signons. This affects 1638193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1639193267Sjkimthe tools/utilities. 1640193267Sjkim 1641193267SjkimImplemented a change to allow the host to override any ACPI table, including 1642220663Sjkimdynamically loaded tables. Previously, only the DSDT could be replaced by the 1643193267Sjkimhost. With this change, the AcpiOsTableOverride interface is called for each 1644193267Sjkimtable found in the RSDT/XSDT during ACPICA initialization, and also whenever 1645193267Sjkima table is dynamically loaded via the AML Load operator. 1646193267Sjkim 1647193267SjkimUpdated FADT flag definitions, especially the Boot Architecture flags. 1648193267Sjkim 1649193267SjkimDebugger: For the Find command, automatically pad the input ACPI name with 1650193267Sjkimunderscores if the name is shorter than 4 characters. This enables a match 1651193267Sjkimwith the actual namespace entry which is itself padded with underscores. 1652193267Sjkim 1653193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1654193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1655220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1656193267Sjkimmuch larger code and data size. 1657193267Sjkim 1658193267Sjkim Previous Release: 1659193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 1660193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1661193267Sjkim Current Release: 1662193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1663193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1664193267Sjkim 1665193267Sjkim2) iASL Compiler/Disassembler and Tools: 1666193267Sjkim 1667193267SjkimFix build error under Bison-2.4. 1668193267Sjkim 1669193267SjkimDissasembler: Enhanced FADT support. Added decoding of the Boot Architecture 1670193267Sjkimflags. Now decode all flags, regardless of the FADT version. Flag output 1671193267Sjkimincludes the FADT version which first defined each flag. 1672193267Sjkim 1673193267SjkimThe iASL -g option now dumps the RSDT to a file (in addition to the FADT and 1674193267SjkimDSDT). Windows only. 1675193267Sjkim 1676193267Sjkim---------------------------------------- 1677193267Sjkim04 December 2008. Summary of changes for version 20081204: 1678193267Sjkim 1679193267Sjkim1) ACPI CA Core Subsystem: 1680193267Sjkim 1681193267SjkimThe ACPICA Programmer Reference has been completely updated and revamped for 1682193267Sjkimthis release. This includes updates to the external interfaces, OSL 1683193267Sjkiminterfaces, the overview sections, and the debugger reference. 1684193267Sjkim 1685193267SjkimSeveral new ACPICA interfaces have been implemented and documented in the 1686193267Sjkimprogrammer reference: 1687193267SjkimAcpiReset - Writes the reset value to the FADT-defined reset register. 1688193267SjkimAcpiDisableAllGpes - Disable all available GPEs. 1689193267SjkimAcpiEnableAllRuntimeGpes - Enable all available runtime GPEs. 1690193267SjkimAcpiGetGpeDevice - Get the GPE block device associated with a GPE. 1691193267SjkimAcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs. 1692193267SjkimAcpiRead - Low-level read ACPI register (was HwLowLevelRead.) 1693193267SjkimAcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.) 1694193267Sjkim 1695193267SjkimMost of the public ACPI hardware-related interfaces have been moved to a new 1696193267Sjkimfile, components/hardware/hwxface.c 1697193267Sjkim 1698193267SjkimEnhanced the FADT parsing and low-level ACPI register access: The ACPI 1699193267Sjkimregister lengths within the FADT are now used, and the low level ACPI 1700193267Sjkimregister access no longer hardcodes the ACPI register lengths. Given that 1701220663Sjkimthere may be some risk in actually trusting the FADT register lengths, a run- 1702193267Sjkimtime option was added to fall back to the default hardcoded lengths if the 1703193267SjkimFADT proves to contain incorrect values - UseDefaultRegisterWidths. This 1704193267Sjkimoption is set to true for now, and a warning is issued if a suspicious FADT 1705193267Sjkimregister length is overridden with the default value. 1706193267Sjkim 1707193267SjkimFixed a reference count issue in NsRepairObject. This problem was introduced 1708193267Sjkimin version 20081031 as part of a fix to repair Buffer objects within 1709193267SjkimPackages. Lin Ming. 1710193267Sjkim 1711193267SjkimAdded semaphore support to the Linux/Unix application OS-services layer 1712193267Sjkim(OSL). ACPICA BZ 448. Lin Ming. 1713193267Sjkim 1714220663SjkimAdded the ACPI_MUTEX_TYPE configuration option to select whether mutexes will 1715193267Sjkimbe implemented in the OSL, or will binary semaphores be used instead. 1716193267Sjkim 1717193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1718193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1719220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1720193267Sjkimmuch larger code and data size. 1721193267Sjkim 1722193267Sjkim Previous Release: 1723193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1724193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1725193267Sjkim Current Release: 1726193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 1727193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1728193267Sjkim 1729193267Sjkim2) iASL Compiler/Disassembler and Tools: 1730193267Sjkim 1731220663SjkimiASL: Completed the '-e' option to include additional ACPI tables in order to 1732193267Sjkimaid with disassembly and External statement generation. ACPICA BZ 742. Lin 1733193267SjkimMing. 1734193267Sjkim 1735193267SjkimiASL: Removed the "named object in while loop" error. The compiler cannot 1736193267Sjkimdetermine how many times a loop will execute. ACPICA BZ 730. 1737193267Sjkim 1738193267SjkimDisassembler: Implemented support for FADT revision 2 (MS extension). ACPICA 1739193267SjkimBZ 743. 1740193267Sjkim 1741193267SjkimDisassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG). 1742193267Sjkim 1743193267Sjkim---------------------------------------- 1744193267Sjkim31 October 2008. Summary of changes for version 20081031: 1745193267Sjkim 1746193267Sjkim1) ACPI CA Core Subsystem: 1747193267Sjkim 1748220663SjkimRestructured the ACPICA header files into public/private. acpi.h now includes 1749193267Sjkimonly the "public" acpica headers. All other acpica headers are "private" and 1750193267Sjkimshould not be included by acpica users. One new file, accommon.h is used to 1751193267Sjkiminclude the commonly used private headers for acpica code generation. Future 1752193267Sjkimplans include moving all private headers to a new subdirectory. 1753193267Sjkim 1754193267SjkimImplemented an automatic Buffer->String return value conversion for 1755193267Sjkimpredefined ACPI methods. For these methods (such as _BIF), added automatic 1756193267Sjkimconversion for return objects that are required to be a String, but a Buffer 1757193267Sjkimwas found instead. This can happen when reading string battery data from an 1758193267Sjkimoperation region, because it used to be difficult to convert the data from 1759193267Sjkimbuffer to string from within the ASL. Ensures that the host OS is provided 1760193267Sjkimwith a valid null-terminated string. Linux BZ 11822. 1761193267Sjkim 1762193267SjkimUpdated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector 1763193267Sjkiminto two: one for the 32-bit vector, another for the 64-bit vector. This is 1764193267Sjkimrequired because the host OS must setup the wake much differently for each 1765220663Sjkimvector (real vs. protected mode, etc.) and the interface itself should not be 1766193267Sjkimdeciding which vector to use. Also, eliminated the GetFirmwareWakingVector 1767193267Sjkiminterface, as it served no purpose (only the firmware reads the vector, OS 1768193267Sjkimonly writes the vector.) ACPICA BZ 731. 1769193267Sjkim 1770193267SjkimImplemented a mechanism to escape infinite AML While() loops. Added a loop 1771193267Sjkimcounter to force exit from AML While loops if the count becomes too large. 1772193267SjkimThis can occur in poorly written AML when the hardware does not respond 1773193267Sjkimwithin a while loop and the loop does not implement a timeout. The maximum 1774193267Sjkimloop count is configurable. A new exception code is returned when a loop is 1775193267Sjkimbroken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore. 1776193267Sjkim 1777193267SjkimOptimized the execution of AML While loops. Previously, a control state 1778193267Sjkimobject was allocated and freed for each execution of the loop. The 1779193267Sjkimoptimization is to simply reuse the control state for each iteration. This 1780193267Sjkimspeeds up the raw loop execution time by about 5%. 1781193267Sjkim 1782193267SjkimEnhanced the implicit return mechanism. For Windows compatibility, return an 1783193267Sjkimimplicit integer of value zero for methods that contain no executable code. 1784193267SjkimSuch methods are seen in the field as stubs (presumably), and can cause 1785193267Sjkimdrivers to fail if they expect a return value. Lin Ming. 1786193267Sjkim 1787193267SjkimAllow multiple backslashes as root prefixes in namepaths. In a fully 1788193267Sjkimqualified namepath, allow multiple backslash prefixes. This can happen (and 1789193267Sjkimis seen in the field) because of the use of a double-backslash in strings 1790193267Sjkim(since backslash is the escape character) causing confusion. ACPICA BZ 739 1791193267SjkimLin Ming. 1792193267Sjkim 1793193267SjkimEmit a warning if two different FACS or DSDT tables are discovered in the 1794193267SjkimFADT. Checks if there are two valid but different addresses for the FACS and 1795193267SjkimDSDT within the FADT (mismatch between the 32-bit and 64-bit fields.) 1796193267Sjkim 1797193267SjkimConsolidated the method argument count validation code. Merged the code that 1798193267Sjkimvalidates control method argument counts into the predefined validation 1799193267Sjkimmodule. Eliminates possible multiple warnings for incorrect argument counts. 1800193267Sjkim 1801193267SjkimImplemented ACPICA example code. Includes code for ACPICA initialization, 1802193267Sjkimhandler installation, and calling a control method. Available at 1803193267Sjkimsource/tools/examples. 1804193267Sjkim 1805193267SjkimAdded a global pointer for FACS table to simplify internal FACS access. Use 1806220663Sjkimthe global pointer instead of using AcpiGetTableByIndex for each FACS access. 1807193267SjkimThis simplifies the code for the Global Lock and the Firmware Waking 1808193267SjkimVector(s). 1809193267Sjkim 1810193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1811193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1812220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1813193267Sjkimmuch larger code and data size. 1814193267Sjkim 1815193267Sjkim Previous Release: 1816193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1817193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1818193267Sjkim Current Release: 1819193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1820193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1821193267Sjkim 1822193267Sjkim2) iASL Compiler/Disassembler and Tools: 1823193267Sjkim 1824193267SjkimiASL: Improved disassembly of external method calls. Added the -e option to 1825220663Sjkimallow the inclusion of additional ACPI tables to help with the disassembly of 1826193267Sjkimmethod invocations and the generation of external declarations during the 1827193267Sjkimdisassembly. Certain external method invocations cannot be disassembled 1828193267Sjkimproperly without the actual declaration of the method. Use the -e option to 1829193267Sjkiminclude the table where the external method(s) are actually declared. Most 1830193267Sjkimuseful for disassembling SSDTs that make method calls back to the master 1831193267SjkimDSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d 1832193267Sjkim-e dsdt.aml ssdt1.aml 1833193267Sjkim 1834193267SjkimiASL: Fix to allow references to aliases within ASL namepaths. Fixes a 1835193267Sjkimproblem where the use of an alias within a namepath would result in a not 1836193267Sjkimfound error or cause the compiler to fault. Also now allows forward 1837193267Sjkimreferences from the Alias operator itself. ACPICA BZ 738. 1838193267Sjkim 1839193267Sjkim---------------------------------------- 1840193267Sjkim26 September 2008. Summary of changes for version 20080926: 1841193267Sjkim 1842193267Sjkim1) ACPI CA Core Subsystem: 1843193267Sjkim 1844193267SjkimDesigned and implemented a mechanism to validate predefined ACPI methods and 1845220663Sjkimobjects. This code validates the predefined ACPI objects (objects whose names 1846193267Sjkimstart with underscore) that appear in the namespace, at the time they are 1847193267Sjkimevaluated. The argument count and the type of the returned object are 1848193267Sjkimvalidated against the ACPI specification. The purpose of this validation is 1849193267Sjkimto detect problems with the BIOS-implemented predefined ACPI objects before 1850220663Sjkimthe results are returned to the ACPI-related drivers. Future enhancements may 1851193267Sjkiminclude actual repair of incorrect return objects where possible. Two new 1852193267Sjkimfiles are nspredef.c and acpredef.h. 1853193267Sjkim 1854193267SjkimFixed a fault in the AML parser if a memory allocation fails during the Op 1855193267Sjkimcompletion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492. 1856193267Sjkim 1857193267SjkimFixed an issue with implicit return compatibility. This change improves the 1858193267Sjkimimplicit return mechanism to be more compatible with the MS interpreter. Lin 1859193267SjkimMing, ACPICA BZ 349. 1860193267Sjkim 1861193267SjkimImplemented support for zero-length buffer-to-string conversions. Allow zero 1862193267Sjkimlength strings during interpreter buffer-to-string conversions. For example, 1863193267Sjkimduring the ToDecimalString and ToHexString operators, as well as implicit 1864193267Sjkimconversions. Fiodor Suietov, ACPICA BZ 585. 1865193267Sjkim 1866193267SjkimFixed two possible memory leaks in the error exit paths of 1867193267SjkimAcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are 1868193267Sjkimsimilar in that they use a stack of state objects in order to eliminate 1869193267Sjkimrecursion. The stack must be fully unwound and deallocated if an error 1870193267Sjkimoccurs. Lin Ming. ACPICA BZ 383. 1871193267Sjkim 1872220663SjkimRemoved the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global 1873193267SjkimACPI register table. This bit does not exist and is unused. Lin Ming, Bob 1874193267SjkimMoore ACPICA BZ 442. 1875193267Sjkim 1876193267SjkimRemoved the obsolete version number in module headers. Removed the 1877193267Sjkim"$Revision" number that appeared in each module header. This version number 1878193267Sjkimwas useful under SourceSafe and CVS, but has no meaning under git. It is not 1879193267Sjkimonly incorrect, it could also be misleading. 1880193267Sjkim 1881193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1882193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1883220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1884193267Sjkimmuch larger code and data size. 1885193267Sjkim 1886193267Sjkim Previous Release: 1887193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1888193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1889193267Sjkim Current Release: 1890193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1891193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1892193267Sjkim 1893193267Sjkim---------------------------------------- 1894193267Sjkim29 August 2008. Summary of changes for version 20080829: 1895193267Sjkim 1896193267Sjkim1) ACPI CA Core Subsystem: 1897193267Sjkim 1898193267SjkimCompleted a major cleanup of the internal ACPI_OPERAND_OBJECT of type 1899193267SjkimReference. Changes include the elimination of cheating on the Object field 1900193267Sjkimfor the DdbHandle subtype, addition of a reference class field to 1901220663Sjkimdifferentiate the various reference types (instead of an AML opcode), and the 1902193267Sjkimcleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723 1903193267Sjkim 1904193267SjkimReduce an error to a warning for an incorrect method argument count. 1905193267SjkimPreviously aborted with an error if too few arguments were passed to a 1906220663Sjkimcontrol method via the external ACPICA interface. Now issue a warning instead 1907193267Sjkimand continue. Handles the case where the method inadvertently declares too 1908193267Sjkimmany arguments, but does not actually use the extra ones. Applies mainly to 1909193267Sjkimthe predefined methods. Lin Ming. Linux BZ 11032. 1910193267Sjkim 1911220663SjkimDisallow the evaluation of named object types with no intrinsic value. Return 1912220663SjkimAE_TYPE for objects that have no value and therefore evaluation is undefined: 1913193267SjkimDevice, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of 1914193267Sjkimthese types were allowed, but an exception would be generated at some point 1915193267Sjkimduring the evaluation. Now, the error is generated up front. 1916193267Sjkim 1917193267SjkimFixed a possible memory leak in the AcpiNsGetExternalPathname function 1918193267Sjkim(nsnames.c). Fixes a leak in the error exit path. 1919193267Sjkim 1920220663SjkimRemoved the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug 1921220663Sjkimlevels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION 1922193267Sjkiminterfaces. Also added ACPI_DB_EVENTS to correspond with the existing 1923193267SjkimACPI_LV_EVENTS. 1924193267Sjkim 1925193267SjkimRemoved obsolete and/or unused exception codes from the acexcep.h header. 1926193267SjkimThere is the possibility that certain device drivers may be affected if they 1927193267Sjkimuse any of these exceptions. 1928193267Sjkim 1929193267SjkimThe ACPICA documentation has been added to the public git source tree, under 1930193267Sjkimacpica/documents. Included are the ACPICA programmer reference, the iASL 1931193267Sjkimcompiler reference, and the changes.txt release logfile. 1932193267Sjkim 1933193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1934193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1935220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1936193267Sjkimmuch larger code and data size. 1937193267Sjkim 1938193267Sjkim Previous Release: 1939193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1940193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1941193267Sjkim Current Release: 1942193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1943193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1944193267Sjkim 1945193267Sjkim2) iASL Compiler/Disassembler and Tools: 1946193267Sjkim 1947193267SjkimAllow multiple argument counts for the predefined _SCP method. ACPI 3.0 1948193267Sjkimdefines _SCP with 3 arguments. Previous versions defined it with only 1 1949193267Sjkimargument. iASL now allows both definitions. 1950193267Sjkim 1951193267SjkimiASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero- 1952193267Sjkimlength subtables when disassembling ACPI tables. Also fixed a couple of 1953193267Sjkimerrors where a full 16-bit table type field was not extracted from the input 1954193267Sjkimproperly. 1955193267Sjkim 1956193267Sjkimacpisrc: Improve comment counting mechanism for generating source code 1957193267Sjkimstatistics. Count first and last lines of multi-line comments as whitespace, 1958193267Sjkimnot comment lines. Handle Linux legal header in addition to standard acpica 1959193267Sjkimheader. 1960193267Sjkim 1961193267Sjkim---------------------------------------- 1962193267Sjkim 1963193267Sjkim29 July 2008. Summary of changes for version 20080729: 1964193267Sjkim 1965193267Sjkim1) ACPI CA Core Subsystem: 1966193267Sjkim 1967193267SjkimFix a possible deadlock in the GPE dispatch. Remove call to 1968220663SjkimAcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt 1969193267Sjkimto acquire the GPE lock but can deadlock since the GPE lock is already held 1970193267Sjkimat dispatch time. This code was introduced in version 20060831 as a response 1971193267Sjkimto Linux BZ 6881 and has since been removed from Linux. 1972193267Sjkim 1973220663SjkimAdd a function to dereference returned reference objects. Examines the return 1974193267Sjkimobject from a call to AcpiEvaluateObject. Any Index or RefOf references are 1975193267Sjkimautomatically dereferenced in an attempt to return something useful (these 1976193267Sjkimreference types cannot be converted into an external ACPI_OBJECT.) Provides 1977193267SjkimMS compatibility. Lin Ming, Bob Moore. Linux BZ 11105 1978193267Sjkim 1979193267Sjkimx2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new 1980193267Sjkimsubtables for the MADT and one new subtable for the SRAT. Includes 1981193267Sjkimdisassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC 1982193267SjkimSpecification, June 2008. 1983193267Sjkim 1984193267SjkimAdditional error checking for pathname utilities. Add error check after all 1985193267Sjkimcalls to AcpiNsGetPathnameLength. Add status return from 1986193267SjkimAcpiNsBuildExternalPath and check after all calls. Add parameter validation 1987193267Sjkimto AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar. 1988193267Sjkim 1989193267SjkimReturn status from the global init function AcpiUtGlobalInitialize. This is 1990193267Sjkimused by both the kernel subsystem and the utilities such as iASL compiler. 1991193267SjkimThe function could possibly fail when the caches are initialized. Yang Yi. 1992193267Sjkim 1993193267SjkimAdd a function to decode reference object types to strings. Created for 1994193267Sjkimimproved error messages. 1995193267Sjkim 1996220663SjkimImprove object conversion error messages. Better error messages during object 1997220663Sjkimconversion from internal to the external ACPI_OBJECT. Used for external calls 1998193267Sjkimto AcpiEvaluateObject. 1999193267Sjkim 2000193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2001193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2002220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2003193267Sjkimmuch larger code and data size. 2004193267Sjkim 2005193267Sjkim Previous Release: 2006193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 2007193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 2008193267Sjkim Current Release: 2009193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 2010193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 2011193267Sjkim 2012193267Sjkim2) iASL Compiler/Disassembler and Tools: 2013193267Sjkim 2014193267SjkimDebugger: fix a possible hang when evaluating non-methods. Fixes a problem 2015193267Sjkimintroduced in version 20080701. If the object being evaluated (via execute 2016193267Sjkimcommand) is not a method, the debugger can hang while trying to obtain non- 2017193267Sjkimexistent parameters. 2018193267Sjkim 2019193267SjkimiASL: relax error for using reserved "_T_x" identifiers. These names can 2020193267Sjkimappear in a disassembled ASL file if they were emitted by the original 2021193267Sjkimcompiler. Instead of issuing an error or warning and forcing the user to 2022193267Sjkimmanually change these names, issue a remark instead. 2023193267Sjkim 2024220663SjkimiASL: error if named object created in while loop. Emit an error if any named 2025193267Sjkimobject is created within a While loop. If allowed, this code will generate a 2026220663Sjkimrun-time error on the second iteration of the loop when an attempt is made to 2027193267Sjkimcreate the same named object twice. ACPICA bugzilla 730. 2028193267Sjkim 2029193267SjkimiASL: Support absolute pathnames for include files. Add support for absolute 2030193267Sjkimpathnames within the Include operator. previously, only relative pathnames 2031193267Sjkimwere supported. 2032193267Sjkim 2033220663SjkimiASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor. 2034193267SjkimThe ACPI spec requires one interrupt minimum. BZ 423 2035193267Sjkim 2036193267SjkimiASL: Handle a missing ResourceSource arg, with a present SourceIndex. 2037193267SjkimHandles the case for the Interrupt Resource Descriptor where 2038193267Sjkimthe ResourceSource argument is omitted but ResourceSourceIndex 2039193267Sjkimis present. Now leave room for the Index. BZ 426 2040193267Sjkim 2041193267SjkimiASL: Prevent error message if CondRefOf target does not exist. Fixes cases 2042193267Sjkimwhere an error message is emitted if the target does not exist. BZ 516 2043193267Sjkim 2044193267SjkimiASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option 2045220663Sjkim(get ACPI tables on Windows). This was apparently broken in version 20070919. 2046193267Sjkim 2047220663SjkimAcpiXtract: Handle EOF while extracting data. Correctly handle the case where 2048193267Sjkimthe EOF happens immediately after the last table in the input file. Print 2049193267Sjkimcompletion message. Previously, no message was displayed in this case. 2050193267Sjkim 2051193267Sjkim---------------------------------------- 2052193267Sjkim01 July 2008. Summary of changes for version 20080701: 2053193267Sjkim 2054193267Sjkim0) Git source tree / acpica.org 2055193267Sjkim 2056193267SjkimFixed a problem where a git-clone from http would not transfer the entire 2057193267Sjkimsource tree. 2058193267Sjkim 2059193267Sjkim1) ACPI CA Core Subsystem: 2060193267Sjkim 2061193267SjkimImplemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one 2062193267Sjkimenable bit. Now performs a read-change-write of the enable register instead 2063193267Sjkimof simply writing out the cached enable mask. This will prevent inadvertent 2064220663Sjkimenabling of GPEs if a rogue GPE is received during initialization (before GPE 2065193267Sjkimhandlers are installed.) 2066193267Sjkim 2067193267SjkimImplemented a copy for dynamically loaded tables. Previously, dynamically 2068193267Sjkimloaded tables were simply mapped - but on some machines this memory is 2069193267Sjkimcorrupted after suspend. Now copy the table to a local buffer. For the 2070193267SjkimOpRegion case, added checksum verify. Use the table length from the table 2071193267Sjkimheader, not the region length. For the Buffer case, use the table length 2072193267Sjkimalso. Dennis Noordsij, Bob Moore. BZ 10734 2073193267Sjkim 2074220663SjkimFixed a problem where the same ACPI table could not be dynamically loaded and 2075193267Sjkimunloaded more than once. Without this change, a table cannot be loaded again 2076193267Sjkimonce it has been loaded/unloaded one time. The current mechanism does not 2077220663Sjkimunregister a table upon an unload. During a load, if the same table is found, 2078193267Sjkimthis no longer returns an exception. BZ 722 2079193267Sjkim 2080193267SjkimFixed a problem where the wrong descriptor length was calculated for the 2081193267SjkimEndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag 2082193267Sjkimare calculated as 12 bytes long, but the actual length in the internal 2083193267Sjkimdescriptor is 16 because of the round-up to 8 on the 64-bit build. Reported 2084193267Sjkimby Linn Crosetto. BZ 728 2085193267Sjkim 2086193267SjkimFixed a possible memory leak in the Unload operator. The DdbHandle returned 2087220663Sjkimby Load() did not have its reference count decremented during unload, leading 2088193267Sjkimto a memory leak. Lin Ming. BZ 727 2089193267Sjkim 2090193267SjkimFixed a possible memory leak when deleting thermal/processor objects. Any 2091193267Sjkimassociated notify handlers (and objects) were not being deleted. Fiodor 2092193267SjkimSuietov. BZ 506 2093193267Sjkim 2094193267SjkimFixed the ordering of the ASCII names in the global mutex table to match the 2095220663Sjkimactual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only. 2096193267SjkimVegard Nossum. BZ 726 2097193267Sjkim 2098193267SjkimEnhanced the AcpiGetObjectInfo interface to return the number of required 2099193267Sjkimarguments if the object is a control method. Added this call to the debugger 2100193267Sjkimso the proper number of default arguments are passed to a method. This 2101193267Sjkimprevents a warning when executing methods from AcpiExec. 2102193267Sjkim 2103193267SjkimAdded a check for an invalid handle in AcpiGetObjectInfo. Return 2104193267SjkimAE_BAD_PARAMETER if input handle is invalid. BZ 474 2105193267Sjkim 2106193267SjkimFixed an extraneous warning from exconfig.c on the 64-bit build. 2107193267Sjkim 2108193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2109193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2110220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2111193267Sjkimmuch larger code and data size. 2112193267Sjkim 2113193267Sjkim Previous Release: 2114193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 2115193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 2116193267Sjkim Current Release: 2117193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 2118193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 2119193267Sjkim 2120193267Sjkim2) iASL Compiler/Disassembler and Tools: 2121193267Sjkim 2122193267SjkimiASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both 2123193267Sjkimresource descriptor names. 2124193267Sjkim 2125220663SjkimiASL: Detect invalid ASCII characters in input (windows version). Removed the 2126193267Sjkim"-CF" flag from the flex compile, enables correct detection of non-ASCII 2127193267Sjkimcharacters in the input. BZ 441 2128193267Sjkim 2129193267SjkimiASL: Eliminate warning when result of LoadTable is not used. Eliminate the 2130193267Sjkim"result of operation not used" warning when the DDB handle returned from 2131193267SjkimLoadTable is not used. The warning is not needed. BZ 590 2132193267Sjkim 2133220663SjkimAcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to 2134220663Sjkimpass address of table to the AML. Added option to disable OpRegion simulation 2135220663Sjkimto allow creation of an OpRegion with a real address that was passed to _CFG. 2136193267SjkimAll of this allows testing of the Load and Unload operators from AcpiExec. 2137193267Sjkim 2138193267SjkimDebugger: update tables command for unloaded tables. Handle unloaded tables 2139193267Sjkimand use the standard table header output routine. 2140193267Sjkim 2141193267Sjkim---------------------------------------- 2142193267Sjkim09 June 2008. Summary of changes for version 20080609: 2143193267Sjkim 2144193267Sjkim1) ACPI CA Core Subsystem: 2145193267Sjkim 2146193267SjkimImplemented a workaround for reversed _PRT entries. A significant number of 2147193267SjkimBIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This 2148193267Sjkimchange dynamically detects and repairs this problem. Provides compatibility 2149193267Sjkimwith MS ACPI. BZ 6859 2150193267Sjkim 2151193267SjkimSimplified the internal ACPI hardware interfaces to eliminate the locking 2152193267Sjkimflag parameter from Register Read/Write. Added a new external interface, 2153193267SjkimAcpiGetRegisterUnlocked. 2154193267Sjkim 2155220663SjkimFixed a problem where the invocation of a GPE control method could hang. This 2156193267Sjkimwas a regression introduced in 20080514. The new method argument count 2157193267Sjkimvalidation mechanism can enter an infinite loop when a GPE method is 2158220663Sjkimdispatched. Problem fixed by removing the obsolete code that passed GPE block 2159193267Sjkiminformation to the notify handler via the control method parameter pointer. 2160193267Sjkim 2161193267SjkimFixed a problem where the _SST execution status was incorrectly returned to 2162193267Sjkimthe caller of AcpiEnterSleepStatePrep. This was a regression introduced in 2163193267Sjkim20080514. _SST is optional and a NOT_FOUND exception should never be 2164193267Sjkimreturned. BZ 716 2165193267Sjkim 2166193267SjkimFixed a problem where a deleted object could be accessed from within the AML 2167220663Sjkimparser. This was a regression introduced in version 20080123 as a fix for the 2168193267SjkimUnload operator. Lin Ming. BZ 10669 2169193267Sjkim 2170193267SjkimCleaned up the debug operand dump mechanism. Eliminated unnecessary operands 2171193267Sjkimand eliminated the use of a negative index in a loop. Operands are now 2172193267Sjkimdisplayed in the correct order, not backwards. This also fixes a regression 2173193267Sjkimintroduced in 20080514 on 64-bit systems where the elimination of 2174193267SjkimACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715 2175193267Sjkim 2176193267SjkimFixed a possible memory leak in EvPciConfigRegionSetup where the error exit 2177193267Sjkimpath did not delete a locally allocated structure. 2178193267Sjkim 2179193267SjkimUpdated definitions for the DMAR and SRAT tables to synchronize with the 2180193267Sjkimcurrent specifications. Includes disassembler support. 2181193267Sjkim 2182193267SjkimFixed a problem in the mutex debug code (in utmutex.c) where an incorrect 2183193267Sjkimloop termination value was used. Loop terminated on iteration early, missing 2184193267Sjkimone mutex. Linn Crosetto 2185193267Sjkim 2186193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2187193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2188220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2189193267Sjkimmuch larger code and data size. 2190193267Sjkim 2191193267Sjkim Previous Release: 2192193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 2193193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 2194193267Sjkim Current Release: 2195193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 2196193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 2197193267Sjkim 2198193267Sjkim2) iASL Compiler/Disassembler and Tools: 2199193267Sjkim 2200193267SjkimDisassembler: Implemented support for EisaId() within _CID objects. Now 2201193267Sjkimdisassemble integer _CID objects back to EisaId invocations, including 2202193267Sjkimmultiple integers within _CID packages. Includes single-step support for 2203193267Sjkimdebugger also. 2204193267Sjkim 2205193267SjkimDisassembler: Added support for DMAR and SRAT table definition changes. 2206193267Sjkim 2207193267Sjkim---------------------------------------- 2208193267Sjkim14 May 2008. Summary of changes for version 20080514: 2209193267Sjkim 2210193267Sjkim1) ACPI CA Core Subsystem: 2211193267Sjkim 2212193267SjkimFixed a problem where GPEs were enabled too early during the ACPICA 2213193267Sjkiminitialization. This could lead to "handler not installed" errors on some 2214193267Sjkimmachines. Moved GPE enable until after _REG/_STA/_INI methods are run. This 2215193267Sjkimensures that all operation regions and devices throughout the namespace have 2216193267Sjkimbeen initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916. 2217193267Sjkim 2218193267SjkimImplemented a change to the enter sleep code. Moved execution of the _GTS 2219193267Sjkimmethod to just before setting sleep enable bit. The execution was moved from 2220193267SjkimAcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed 2221193267Sjkimimmediately before the SLP_EN bit is set, as per the ACPI specification. 2222193267SjkimLuming Yu, BZ 1653. 2223193267Sjkim 2224193267SjkimImplemented a fix to disable unknown GPEs (2nd version). Now always disable 2225193267Sjkimthe GPE, even if ACPICA thinks that that it is already disabled. It is 2226193267Sjkimpossible that the AML or some other code has enabled the GPE unbeknownst to 2227193267Sjkimthe ACPICA code. 2228193267Sjkim 2229220663SjkimFixed a problem with the Field operator where zero-length fields would return 2230220663Sjkiman AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL 2231193267Sjkimfield declarations in Field(), BankField(), and IndexField(). BZ 10606. 2232193267Sjkim 2233193267SjkimImplemented a fix for the Load operator, now load the table at the namespace 2234193267Sjkimroot. This reverts a change introduced in version 20071019. The table is now 2235193267Sjkimloaded at the namespace root even though this goes against the ACPI 2236193267Sjkimspecification. This provides compatibility with other ACPI implementations. 2237220663SjkimThe ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming. 2238193267Sjkim 2239220663SjkimFixed a problem where ACPICA would not Load() tables with unusual signatures. 2240193267SjkimNow ignore ACPI table signature for Load() operator. Only "SSDT" is 2241193267Sjkimacceptable to the ACPI spec, but tables are seen with OEMx and null sigs. 2242220663SjkimTherefore, signature validation is worthless. Apparently MS ACPI accepts such 2243193267Sjkimsignatures, ACPICA must be compatible. BZ 10454. 2244193267Sjkim 2245193267SjkimFixed a possible negative array index in AcpiUtValidateException. Added NULL 2246193267Sjkimfields to the exception string arrays to eliminate a -1 subtraction on the 2247193267SjkimSubStatus field. 2248193267Sjkim 2249193267SjkimUpdated the debug tracking macros to reduce overall code and data size. 2250193267SjkimChanged ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings 2251193267Sjkiminstead of pointers to static strings. Jan Beulich and Bob Moore. 2252193267Sjkim 2253193267SjkimImplemented argument count checking in control method invocation via 2254193267SjkimAcpiEvaluateObject. Now emit an error if too few arguments, warning if too 2255193267Sjkimmany. This applies only to extern programmatic control method execution, not 2256193267Sjkimmethod-to-method calls within the AML. Lin Ming. 2257193267Sjkim 2258193267SjkimEliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no 2259220663Sjkimlonger needed, especially with the removal of 16-bit support. It was replaced 2260220663Sjkimmostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on 2261193267Sjkim32/64-bit platforms is required. 2262193267Sjkim 2263193267SjkimAdded the C const qualifier for appropriate string constants -- mostly 2264193267SjkimMODULE_NAME and printf format strings. Jan Beulich. 2265193267Sjkim 2266193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2267193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2268220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2269193267Sjkimmuch larger code and data size. 2270193267Sjkim 2271193267Sjkim Previous Release: 2272193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 2273193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 2274193267Sjkim Current Release: 2275193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 2276193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 2277193267Sjkim 2278193267Sjkim2) iASL Compiler/Disassembler and Tools: 2279193267Sjkim 2280193267SjkimImplemented ACPI table revision ID validation in the disassembler. Zero is 2281193267Sjkimalways invalid. For DSDTs, the ID controls the interpreter integer width. 1 2282193267Sjkimmeans 32-bit and this is unusual. 2 or greater is 64-bit. 2283193267Sjkim 2284193267Sjkim---------------------------------------- 2285193267Sjkim21 March 2008. Summary of changes for version 20080321: 2286193267Sjkim 2287193267Sjkim1) ACPI CA Core Subsystem: 2288193267Sjkim 2289193267SjkimImplemented an additional change to the GPE support in order to suppress 2290193267Sjkimspurious or stray GPEs. The AcpiEvDisableGpe function will now permanently 2291193267Sjkimdisable incoming GPEs that are neither enabled nor disabled -- meaning that 2292220663Sjkimthe GPE is unknown to the system. This should prevent future interrupt floods 2293193267Sjkimfrom that GPE. BZ 6217 (Zhang Rui) 2294193267Sjkim 2295193267SjkimFixed a problem where NULL package elements were not returned to the 2296193267SjkimAcpiEvaluateObject interface correctly. The element was simply ignored 2297193267Sjkiminstead of returning a NULL ACPI_OBJECT package element, potentially causing 2298193267Sjkima buffer overflow and/or confusing the caller who expected a fixed number of 2299193267Sjkimelements. BZ 10132 (Lin Ming, Bob Moore) 2300193267Sjkim 2301220663SjkimFixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword, 2302193267SjkimQword), Field, BankField, and IndexField operators when invoked from inside 2303193267Sjkiman executing control method. In this case, these operators created namespace 2304193267Sjkimnodes that were incorrectly left marked as permanent nodes instead of 2305193267Sjkimtemporary nodes. This could cause a problem if there is race condition 2306193267Sjkimbetween an exiting control method and a running namespace walk. (Reported by 2307193267SjkimLinn Crosetto) 2308193267Sjkim 2309193267SjkimFixed a problem where the CreateField and CreateXXXField operators would 2310193267Sjkimincorrectly allow duplicate names (the name of the field) with no exception 2311193267Sjkimgenerated. 2312193267Sjkim 2313220663SjkimImplemented several changes for Notify handling. Added support for new Notify 2314193267Sjkimvalues (ACPI 2.0+) and improved the Notify debug output. Notify on 2315193267SjkimPowerResource objects is no longer allowed, as per the ACPI specification. 2316193267Sjkim(Bob Moore, Zhang Rui) 2317193267Sjkim 2318193267SjkimAll Reference Objects returned via the AcpiEvaluateObject interface are now 2319220663Sjkimmarked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for 2320193267SjkimNULL objects - either NULL package elements or unresolved named references. 2321193267Sjkim 2322193267SjkimFixed a problem where an extraneous debug message was produced for package 2323193267Sjkimobjects (when debugging enabled). The message "Package List length larger 2324193267Sjkimthan NumElements count" is now produced in the correct case, and is now an 2325193267Sjkimerror message rather than a debug message. Added a debug message for the 2326220663Sjkimopposite case, where NumElements is larger than the Package List (the package 2327193267Sjkimwill be padded out with NULL elements as per the ACPI spec.) 2328193267Sjkim 2329193267SjkimImplemented several improvements for the output of the ASL "Debug" object to 2330193267Sjkimclarify and keep all data for a given object on one output line. 2331193267Sjkim 2332193267SjkimFixed two size calculation issues with the variable-length Start Dependent 2333193267Sjkimresource descriptor. 2334193267Sjkim 2335193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2336193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2337193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2338193267Sjkima much larger code and data size. 2339193267Sjkim 2340193267Sjkim Previous Release: 2341193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 2342193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 2343193267Sjkim Current Release: 2344193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 2345193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 2346193267Sjkim 2347193267Sjkim2) iASL Compiler/Disassembler and Tools: 2348193267Sjkim 2349193267SjkimFixed a problem with the use of the Switch operator where execution of the 2350193267Sjkimcontaining method by multiple concurrent threads could cause an 2351193267SjkimAE_ALREADY_EXISTS exception. This is caused by the fact that there is no 2352193267Sjkimactual Switch opcode, it must be simulated with local named temporary 2353193267Sjkimvariables and if/else pairs. The solution chosen was to mark any method that 2354193267Sjkimuses Switch as Serialized, thus preventing multiple thread entries. BZ 469. 2355193267Sjkim 2356193267Sjkim---------------------------------------- 2357193267Sjkim13 February 2008. Summary of changes for version 20080213: 2358193267Sjkim 2359193267Sjkim1) ACPI CA Core Subsystem: 2360193267Sjkim 2361193267SjkimImplemented another MS compatibility design change for GPE/Notify handling. 2362193267SjkimGPEs are now cleared/enabled asynchronously to allow all pending notifies to 2363193267Sjkimcomplete first. It is expected that the OSL will queue the enable request 2364220663Sjkimbehind all pending notify requests (may require changes to the local host OSL 2365193267Sjkimin AcpiOsExecute). Alexey Starikovskiy. 2366193267Sjkim 2367193267SjkimFixed a problem where buffer and package objects passed as arguments to a 2368193267Sjkimcontrol method via the external AcpiEvaluateObject interface could cause an 2369193267SjkimAE_AML_INTERNAL exception depending on the order and type of operators 2370193267Sjkimexecuted by the target control method. 2371193267Sjkim 2372193267SjkimFixed a problem where resource descriptor size optimization could cause a 2373193267Sjkimproblem when a _CRS resource template is passed to a _SRS method. The _SRS 2374193267Sjkimresource template must use the same descriptors (with the same size) as 2375193267Sjkimreturned from _CRS. This change affects the following resource descriptors: 2376193267SjkimIRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487) 2377193267Sjkim 2378193267SjkimFixed a problem where a CopyObject to RegionField, BankField, and IndexField 2379220663Sjkimobjects did not perform an implicit conversion as it should. These types must 2380220663Sjkimretain their initial type permanently as per the ACPI specification. However, 2381193267Sjkima CopyObject to all other object types should not perform an implicit 2382193267Sjkimconversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388 2383193267Sjkim 2384193267SjkimFixed a problem with the AcpiGetDevices interface where the mechanism to 2385193267Sjkimmatch device CIDs did not examine the entire list of available CIDs, but 2386193267Sjkiminstead aborted on the first non-matching CID. Andrew Patterson. 2387193267Sjkim 2388220663SjkimFixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was 2389193267Sjkiminadvertently changed to return a 16-bit value instead of a 32-bit value, 2390193267Sjkimtruncating the upper dword of a 64-bit value. This macro is only used to 2391193267Sjkimdisplay debug output, so no incorrect calculations were made. Also, 2392193267Sjkimreimplemented the macro so that a 64-bit shift is not performed by 2393193267Sjkiminefficient compilers. 2394193267Sjkim 2395193267SjkimAdded missing va_end statements that should correspond with each va_start 2396193267Sjkimstatement. 2397193267Sjkim 2398193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2399193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2400193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2401193267Sjkima much larger code and data size. 2402193267Sjkim 2403193267Sjkim Previous Release: 2404193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2405193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2406193267Sjkim Current Release: 2407193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 2408193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 2409193267Sjkim 2410193267Sjkim2) iASL Compiler/Disassembler and Tools: 2411193267Sjkim 2412193267SjkimImplemented full disassembler support for the following new ACPI tables: 2413193267SjkimBERT, EINJ, and ERST. Implemented partial disassembler support for the 2414193267Sjkimcomplicated HEST table. These tables support the Windows Hardware Error 2415193267SjkimArchitecture (WHEA). 2416193267Sjkim 2417193267Sjkim---------------------------------------- 2418193267Sjkim23 January 2008. Summary of changes for version 20080123: 2419193267Sjkim 2420193267Sjkim1) ACPI CA Core Subsystem: 2421193267Sjkim 2422193267SjkimAdded the 2008 copyright to all module headers and signons. This affects 2423193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2424193267Sjkimthe tools/utilities. 2425193267Sjkim 2426193267SjkimFixed a problem with the SizeOf operator when used with Package and Buffer 2427193267Sjkimobjects. These objects have deferred execution for some arguments, and the 2428220663Sjkimexecution is now completed before the SizeOf is executed. This problem caused 2429193267Sjkimunexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ 2430193267Sjkim9558 2431193267Sjkim 2432220663SjkimImplemented an enhancement to the interpreter "slack mode". In the absence of 2433193267Sjkiman explicit return or an implicitly returned object from the last executed 2434220663Sjkimopcode, a control method will now implicitly return an integer of value 0 for 2435193267SjkimMicrosoft compatibility. (Lin Ming) BZ 392 2436193267Sjkim 2437220663SjkimFixed a problem with the Load operator where an exception was not returned in 2438193267Sjkimthe case where the table is already loaded. (Lin Ming) BZ 463 2439193267Sjkim 2440220663SjkimImplemented support for the use of DDBHandles as an Indexed Reference, as per 2441193267Sjkimthe ACPI spec. (Lin Ming) BZ 486 2442193267Sjkim 2443193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2444193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2445193267Sjkim 2446193267SjkimFixed a problem with the LoadTable operator where the OemId and OemTableId 2447193267Sjkiminput strings could cause unexpected failures if they were shorter than the 2448193267Sjkimmaximum lengths allowed. (Lin Ming, Bob Moore) BZ 576 2449193267Sjkim 2450193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2451193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2452193267Sjkim 2453220663SjkimImplemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST, 2454193267SjkimIBFT, UEFI, WDAT. Disassembler support is forthcoming. 2455193267Sjkim 2456193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2457193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2458193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2459193267Sjkima much larger code and data size. 2460193267Sjkim 2461193267Sjkim Previous Release: 2462193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2463193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2464193267Sjkim Current Release: 2465193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2466193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2467193267Sjkim 2468193267Sjkim2) iASL Compiler/Disassembler and Tools: 2469193267Sjkim 2470193267SjkimImplemented support in the disassembler for checksum validation on incoming 2471220663Sjkimbinary DSDTs and SSDTs. If incorrect, a message is displayed within the table 2472193267Sjkimheader dump at the start of the disassembly. 2473193267Sjkim 2474193267SjkimImplemented additional debugging information in the namespace listing file 2475193267Sjkimcreated during compilation. In addition to the namespace hierarchy, the full 2476193267Sjkimpathname to each namespace object is displayed. 2477193267Sjkim 2478193267SjkimFixed a problem with the disassembler where invalid ACPI tables could cause 2479193267Sjkimfaults or infinite loops. 2480193267Sjkim 2481193267SjkimFixed an unexpected parse error when using the optional "parameter types" 2482193267Sjkimlist in a control method declaration. (Lin Ming) BZ 397 2483193267Sjkim 2484193267SjkimFixed a problem where two External declarations with the same name did not 2485193267Sjkimcause an error (Lin Ming) BZ 509 2486193267Sjkim 2487193267SjkimImplemented support for full TermArgs (adding Argx, Localx and method 2488193267Sjkiminvocation) for the ParameterData parameter to the LoadTable operator. (Lin 2489193267SjkimMing) BZ 583,587 2490193267Sjkim 2491193267Sjkim---------------------------------------- 2492193267Sjkim19 December 2007. Summary of changes for version 20071219: 2493193267Sjkim 2494193267Sjkim1) ACPI CA Core Subsystem: 2495193267Sjkim 2496193267SjkimImplemented full support for deferred execution for the TermArg string 2497193267Sjkimarguments for DataTableRegion. This enables forward references and full 2498220663Sjkimoperand resolution for the three string arguments. Similar to OperationRegion 2499193267Sjkimdeferred argument execution.) Lin Ming. BZ 430 2500193267Sjkim 2501193267SjkimImplemented full argument resolution support for the BankValue argument to 2502193267SjkimBankField. Previously, only constants were supported, now any TermArg may be 2503193267Sjkimused. Lin Ming BZ 387, 393 2504193267Sjkim 2505193267SjkimFixed a problem with AcpiGetDevices where the search of a branch of the 2506193267Sjkimdevice tree could be terminated prematurely. In accordance with the ACPI 2507193267Sjkimspecification, the search down the current branch is terminated if a device 2508193267Sjkimis both not present and not functional (instead of just not present.) Yakui 2509193267SjkimZhao. 2510193267Sjkim 2511193267SjkimFixed a problem where "unknown" GPEs could be allowed to fire repeatedly if 2512193267Sjkimthe underlying AML code changed the GPE enable registers. Now, any unknown 2513220663Sjkimincoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled 2514193267Sjkiminstead of simply ignored. Rui Zhang. 2515193267Sjkim 2516193267SjkimFixed a problem with Index Fields where the Index register was incorrectly 2517193267Sjkimlimited to a maximum of 32 bits. Now any size may be used. 2518193267Sjkim 2519193267SjkimFixed a couple memory leaks associated with "implicit return" objects when 2520193267Sjkimthe AML Interpreter slack mode is enabled. Lin Ming BZ 349 2521193267Sjkim 2522193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2523193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2524193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2525193267Sjkima much larger code and data size. 2526193267Sjkim 2527193267Sjkim Previous Release: 2528193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 2529193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2530193267Sjkim Current Release: 2531193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2532193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2533193267Sjkim 2534193267Sjkim---------------------------------------- 2535193267Sjkim14 November 2007. Summary of changes for version 20071114: 2536193267Sjkim 2537193267Sjkim1) ACPI CA Core Subsystem: 2538193267Sjkim 2539193267SjkimImplemented event counters for each of the Fixed Events, the ACPI SCI 2540193267Sjkim(interrupt) itself, and control methods executed. Named 2541193267SjkimAcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These 2542193267Sjkimshould be useful for debugging and statistics. 2543193267Sjkim 2544193267SjkimImplemented a new external interface, AcpiGetStatistics, to retrieve the 2545193267Sjkimcontents of the various event counters. Returns the current values for 2546193267SjkimAcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and 2547193267SjkimAcpiMethodCount. The interface can be expanded in the future if new counters 2548193267Sjkimare added. Device drivers should use this interface rather than access the 2549193267Sjkimcounters directly. 2550193267Sjkim 2551193267SjkimFixed a problem with the FromBCD and ToBCD operators. With some compilers, 2552193267Sjkimthe ShortDivide function worked incorrectly, causing problems with the BCD 2553193267Sjkimfunctions with large input values. A truncation from 64-bit to 32-bit 2554193267Sjkiminadvertently occurred. Internal BZ 435. Lin Ming 2555193267Sjkim 2556193267SjkimFixed a problem with Index references passed as method arguments. References 2557193267Sjkimpassed as arguments to control methods were dereferenced immediately (before 2558193267Sjkimcontrol was passed to the called method). The references are now correctly 2559193267Sjkimpassed directly to the called method. BZ 5389. Lin Ming 2560193267Sjkim 2561193267SjkimFixed a problem with CopyObject used in conjunction with the Index operator. 2562193267SjkimThe reference was incorrectly dereferenced before the copy. The reference is 2563193267Sjkimnow correctly copied. BZ 5391. Lin Ming 2564193267Sjkim 2565193267SjkimFixed a problem with Control Method references within Package objects. These 2566193267Sjkimreferences are now correctly generated. This completes the package 2567193267Sjkimconstruction overhaul that began in version 20071019. 2568193267Sjkim 2569193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2570193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2571193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2572193267Sjkima much larger code and data size. 2573193267Sjkim 2574193267Sjkim Previous Release: 2575193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2576193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2577193267Sjkim Current Release: 2578193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 2579193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2580193267Sjkim 2581193267Sjkim 2582193267Sjkim2) iASL Compiler/Disassembler and Tools: 2583193267Sjkim 2584193267SjkimThe AcpiExec utility now installs handlers for all of the predefined 2585193267SjkimOperation Region types. New types supported are: PCI_Config, CMOS, and 2586193267SjkimPCIBARTarget. 2587193267Sjkim 2588193267SjkimFixed a problem with the 64-bit version of AcpiExec where the extended (64- 2589193267Sjkimbit) address fields for the DSDT and FACS within the FADT were not being 2590193267Sjkimused, causing truncation of the upper 32-bits of these addresses. Lin Ming 2591193267Sjkimand Bob Moore 2592193267Sjkim 2593193267Sjkim---------------------------------------- 2594193267Sjkim19 October 2007. Summary of changes for version 20071019: 2595193267Sjkim 2596193267Sjkim1) ACPI CA Core Subsystem: 2597193267Sjkim 2598193267SjkimFixed a problem with the Alias operator when the target of the alias is a 2599193267Sjkimnamed ASL operator that opens a new scope -- Scope, Device, PowerResource, 2600193267SjkimProcessor, and ThermalZone. In these cases, any children of the original 2601193267Sjkimoperator could not be accessed via the alias, potentially causing unexpected 2602193267SjkimAE_NOT_FOUND exceptions. (BZ 9067) 2603193267Sjkim 2604193267SjkimFixed a problem with the Package operator where all named references were 2605193267Sjkimcreated as object references and left otherwise unresolved. According to the 2606193267SjkimACPI specification, a Package can only contain Data Objects or references to 2607193267Sjkimcontrol methods. The implication is that named references to Data Objects 2608193267Sjkim(Integer, Buffer, String, Package, BufferField, Field) should be resolved 2609193267Sjkimimmediately upon package creation. This is the approach taken with this 2610193267Sjkimchange. References to all other named objects (Methods, Devices, Scopes, 2611193267Sjkimetc.) are all now properly created as reference objects. (BZ 5328) 2612193267Sjkim 2613193267SjkimReverted a change to Notify handling that was introduced in version 2614193267Sjkim20070508. This version changed the Notify handling from asynchronous to 2615193267Sjkimfully synchronous (Device driver Notify handling with respect to the Notify 2616193267SjkimASL operator). It was found that this change caused more problems than it 2617193267Sjkimsolved and was removed by most users. 2618193267Sjkim 2619193267SjkimFixed a problem with the Increment and Decrement operators where the type of 2620193267Sjkimthe target object could be unexpectedly and incorrectly changed. (BZ 353) 2621193267SjkimLin Ming. 2622193267Sjkim 2623193267SjkimFixed a problem with the Load and LoadTable operators where the table 2624193267Sjkimlocation within the namespace was ignored. Instead, the table was always 2625193267Sjkimloaded into the root or current scope. Lin Ming. 2626193267Sjkim 2627193267SjkimFixed a problem with the Load operator when loading a table from a buffer 2628193267Sjkimobject. The input buffer was prematurely zeroed and/or deleted. (BZ 577) 2629193267Sjkim 2630193267SjkimFixed a problem with the Debug object where a store of a DdbHandle reference 2631193267Sjkimobject to the Debug object could cause a fault. 2632193267Sjkim 2633193267SjkimAdded a table checksum verification for the Load operator, in the case where 2634193267Sjkimthe load is from a buffer. (BZ 578). 2635193267Sjkim 2636193267SjkimImplemented additional parameter validation for the LoadTable operator. The 2637193267Sjkimlength of the input strings SignatureString, OemIdString, and OemTableId are 2638193267Sjkimnow checked for maximum lengths. (BZ 582) Lin Ming. 2639193267Sjkim 2640193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2641193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2642193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2643193267Sjkima much larger code and data size. 2644193267Sjkim 2645193267Sjkim Previous Release: 2646193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2647193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2648193267Sjkim Current Release: 2649193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2650193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2651193267Sjkim 2652193267Sjkim 2653193267Sjkim2) iASL Compiler/Disassembler: 2654193267Sjkim 2655193267SjkimFixed a problem where if a single file was specified and the file did not 2656193267Sjkimexist, no error message was emitted. (Introduced with wildcard support in 2657193267Sjkimversion 20070917.) 2658193267Sjkim 2659193267Sjkim---------------------------------------- 2660193267Sjkim19 September 2007. Summary of changes for version 20070919: 2661193267Sjkim 2662193267Sjkim1) ACPI CA Core Subsystem: 2663193267Sjkim 2664193267SjkimDesigned and implemented new external interfaces to install and remove 2665193267Sjkimhandlers for ACPI table-related events. Current events that are defined are 2666193267SjkimLOAD and UNLOAD. These interfaces allow the host to track ACPI tables as 2667193267Sjkimthey are dynamically loaded and unloaded. See AcpiInstallTableHandler and 2668193267SjkimAcpiRemoveTableHandler. (Lin Ming and Bob Moore) 2669193267Sjkim 2670193267SjkimFixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 2671193267Sjkim(acpi_serialized option on Linux) could cause some systems to hang during 2672193267Sjkiminitialization. (Bob Moore) BZ 8171 2673193267Sjkim 2674193267SjkimFixed a problem where objects of certain types (Device, ThermalZone, 2675193267SjkimProcessor, PowerResource) can be not found if they are declared and 2676193267Sjkimreferenced from within the same control method (Lin Ming) BZ 341 2677193267Sjkim 2678193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2679193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2680193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2681193267Sjkima much larger code and data size. 2682193267Sjkim 2683193267Sjkim Previous Release: 2684193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2685193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2686193267Sjkim Current Release: 2687193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2688193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2689193267Sjkim 2690193267Sjkim 2691193267Sjkim2) iASL Compiler/Disassembler: 2692193267Sjkim 2693193267SjkimImplemented support to allow multiple files to be compiled/disassembled in a 2694193267Sjkimsingle invocation. This includes command line wildcard support for both the 2695193267SjkimWindows and Unix versions of the compiler. This feature simplifies the 2696193267Sjkimdisassembly and compilation of multiple ACPI tables in a single directory. 2697193267Sjkim 2698193267Sjkim---------------------------------------- 2699193267Sjkim08 May 2007. Summary of changes for version 20070508: 2700193267Sjkim 2701193267Sjkim1) ACPI CA Core Subsystem: 2702193267Sjkim 2703193267SjkimImplemented a Microsoft compatibility design change for the handling of the 2704193267SjkimNotify AML operator. Previously, notify handlers were dispatched and 2705193267Sjkimexecuted completely asynchronously in a deferred thread. The new design 2706193267Sjkimstill executes the notify handlers in a different thread, but the original 2707193267Sjkimthread that executed the Notify() now waits at a synchronization point for 2708193267Sjkimthe notify handler to complete. Some machines depend on a synchronous Notify 2709193267Sjkimoperator in order to operate correctly. 2710193267Sjkim 2711193267SjkimImplemented support to allow Package objects to be passed as method 2712193267Sjkimarguments to the external AcpiEvaluateObject interface. Previously, this 2713193267Sjkimwould return the AE_NOT_IMPLEMENTED exception. This feature had not been 2714193267Sjkimimplemented since there were no reserved control methods that required it 2715193267Sjkimuntil recently. 2716193267Sjkim 2717193267SjkimFixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that 2718193267Sjkimcontained invalid non-zero values in reserved fields could cause later 2719193267Sjkimfailures because these fields have meaning in later revisions of the FADT. 2720193267SjkimFor incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields 2721193267Sjkimare: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.) 2722193267Sjkim 2723193267SjkimFixed a problem where the Global Lock handle was not properly updated if a 2724193267Sjkimthread that acquired the Global Lock via executing AML code then attempted 2725193267Sjkimto acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe 2726193267SjkimLiu. 2727193267Sjkim 2728193267SjkimFixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list 2729193267Sjkimcould be corrupted if the interrupt being removed was at the head of the 2730193267Sjkimlist. Reported by Linn Crosetto. 2731193267Sjkim 2732193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2733193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2734193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2735193267Sjkima much larger code and data size. 2736193267Sjkim 2737193267Sjkim Previous Release: 2738193267Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2739193267Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2740193267Sjkim Current Release: 2741193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2742193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2743193267Sjkim 2744193267Sjkim---------------------------------------- 2745167802Sjkim20 March 2007. Summary of changes for version 20070320: 2746167802Sjkim 2747167802Sjkim1) ACPI CA Core Subsystem: 2748167802Sjkim 2749193267SjkimImplemented a change to the order of interpretation and evaluation of AML 2750193267Sjkimoperand objects within the AML interpreter. The interpreter now evaluates 2751193267Sjkimoperands in the order that they appear in the AML stream (and the 2752193267Sjkimcorresponding ASL code), instead of in the reverse order (after the entire 2753193267Sjkimoperand list has been parsed). The previous behavior caused several subtle 2754193267Sjkimincompatibilities with the Microsoft AML interpreter as well as being 2755193267Sjkimsomewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov. 2756167802Sjkim 2757193267SjkimImplemented a change to the ACPI Global Lock support. All interfaces to the 2758193267Sjkimglobal lock now allow the same thread to acquire the lock multiple times. 2759193267SjkimThis affects the AcpiAcquireGlobalLock external interface to the global lock 2760193267Sjkimas well as the internal use of the global lock to support AML fields -- a 2761193267Sjkimcontrol method that is holding the global lock can now simultaneously access 2762193267SjkimAML fields that require global lock protection. Previously, in both cases, 2763193267Sjkimthis would have resulted in an AE_ALREADY_ACQUIRED exception. The change to 2764193267SjkimAcpiAcquireGlobalLock is of special interest to drivers for the Embedded 2765193267SjkimController. There is no change to the behavior of the AML Acquire operator, 2766193267Sjkimas this can already be used to acquire a mutex multiple times by the same 2767193267Sjkimthread. BZ 8066. With assistance from Alexey Starikovskiy. 2768167802Sjkim 2769193267SjkimFixed a problem where invalid objects could be referenced in the AML 2770193267SjkimInterpreter after error conditions. During operand evaluation, ensure that 2771193267Sjkimthe internal "Return Object" field is cleared on error and only valid 2772193267Sjkimpointers are stored there. Caused occasional access to deleted objects that 2773193267Sjkimresulted in "large reference count" warning messages. Valery Podrezov. 2774167802Sjkim 2775193267SjkimFixed a problem where an AE_STACK_OVERFLOW internal exception could occur on 2776193267Sjkimdeeply nested control method invocations. BZ 7873, local BZ 487. Valery 2777193267SjkimPodrezov. 2778167802Sjkim 2779193267SjkimFixed an internal problem with the handling of result objects on the 2780193267Sjkiminterpreter result stack. BZ 7872. Valery Podrezov. 2781167802Sjkim 2782193267SjkimRemoved obsolete code that handled the case where AML_NAME_OP is the target 2783193267Sjkimof a reference (Reference.Opcode). This code was no longer necessary. BZ 2784193267Sjkim7874. Valery Podrezov. 2785167802Sjkim 2786193267SjkimRemoved obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a 2787193267Sjkimremnant from the previously discontinued 16-bit support. 2788167802Sjkim 2789193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2790193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2791193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2792193267Sjkima much larger code and data size. 2793167802Sjkim 2794167802Sjkim Previous Release: 2795167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2796167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2797167802Sjkim Current Release: 2798167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2799167802Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2800167802Sjkim 2801167802Sjkim---------------------------------------- 2802167802Sjkim26 January 2007. Summary of changes for version 20070126: 2803167802Sjkim 2804167802Sjkim1) ACPI CA Core Subsystem: 2805167802Sjkim 2806193267SjkimAdded the 2007 copyright to all module headers and signons. This affects 2807193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2808193267Sjkimthe utilities. 2809167802Sjkim 2810193267SjkimImplemented a fix for an incorrect parameter passed to AcpiTbDeleteTable 2811193267Sjkimduring a table load. A bad pointer was passed in the case where the DSDT is 2812193267Sjkimoverridden, causing a fault in this case. 2813167802Sjkim 2814193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2815193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2816193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2817193267Sjkima much larger code and data size. 2818167802Sjkim 2819167802Sjkim Previous Release: 2820167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2821167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2822167802Sjkim Current Release: 2823167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2824167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2825167802Sjkim 2826167802Sjkim---------------------------------------- 2827167802Sjkim15 December 2006. Summary of changes for version 20061215: 2828167802Sjkim 2829167802Sjkim1) ACPI CA Core Subsystem: 2830167802Sjkim 2831193267SjkimSupport for 16-bit ACPICA has been completely removed since it is no longer 2832193267Sjkimnecessary and it clutters the code. All 16-bit macros, types, and 2833193267Sjkimconditional compiles have been removed, cleaning up and simplifying the code 2834193267Sjkimacross the entire subsystem. DOS support is no longer needed since the 2835193267Sjkimbootable Linux firmware kit is now available. 2836167802Sjkim 2837193267SjkimThe handler for the Global Lock is now removed during AcpiTerminate to 2838193267Sjkimenable a clean subsystem restart, via the implementation of the 2839193267SjkimAcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz, 2840193267SjkimHP) 2841167802Sjkim 2842193267SjkimImplemented enhancements to the multithreading support within the debugger 2843193267Sjkimto enable improved multithreading debugging and evaluation of the subsystem. 2844167802Sjkim(Valery Podrezov) 2845167802Sjkim 2846193267SjkimDebugger: Enhanced the Statistics/Memory command to emit the total (maximum) 2847193267Sjkimmemory used during the execution, as well as the maximum memory consumed by 2848193267Sjkimeach of the various object types. (Valery Podrezov) 2849167802Sjkim 2850193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2851193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2852193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2853193267Sjkima much larger code and data size. 2854193267Sjkim 2855167802Sjkim Previous Release: 2856167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2857167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2858167802Sjkim Current Release: 2859167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2860167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2861167802Sjkim 2862167802Sjkim 2863167802Sjkim2) iASL Compiler/Disassembler and Tools: 2864167802Sjkim 2865193267SjkimAcpiExec: Implemented a new option (-m) to display full memory use 2866193267Sjkimstatistics upon subsystem/program termination. (Valery Podrezov) 2867167802Sjkim 2868167802Sjkim---------------------------------------- 2869167802Sjkim09 November 2006. Summary of changes for version 20061109: 2870167802Sjkim 2871167802Sjkim1) ACPI CA Core Subsystem: 2872167802Sjkim 2873193267SjkimOptimized the Load ASL operator in the case where the source operand is an 2874193267Sjkimoperation region. Simply map the operation region memory, instead of 2875193267Sjkimperforming a bytewise read. (Region must be of type SystemMemory, see 2876193267Sjkimbelow.) 2877167802Sjkim 2878193267SjkimFixed the Load ASL operator for the case where the source operand is a 2879193267Sjkimregion field. A buffer object is also allowed as the source operand. BZ 480 2880167802Sjkim 2881193267SjkimFixed a problem where the Load ASL operator allowed the source operand to be 2882193267Sjkiman operation region of any type. It is now restricted to regions of type 2883193267SjkimSystemMemory, as per the ACPI specification. BZ 481 2884167802Sjkim 2885193267SjkimAdditional cleanup and optimizations for the new Table Manager code. 2886167802Sjkim 2887193267SjkimAcpiEnable will now fail if all of the required ACPI tables are not loaded 2888193267Sjkim(FADT, FACS, DSDT). BZ 477 2889167802Sjkim 2890193267SjkimAdded #pragma pack(8/4) to acobject.h to ensure that the structures in this 2891193267Sjkimheader are always compiled as aligned. The ACPI_OPERAND_OBJECT has been 2892193267Sjkimmanually optimized to be aligned and will not work if it is byte-packed. 2893167802Sjkim 2894193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2895193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2896193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2897193267Sjkima much larger code and data size. 2898167802Sjkim 2899167802Sjkim Previous Release: 2900167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2901167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2902167802Sjkim Current Release: 2903167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2904167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2905167802Sjkim 2906167802Sjkim 2907167802Sjkim2) iASL Compiler/Disassembler and Tools: 2908167802Sjkim 2909193267SjkimFixed a problem where the presence of the _OSI predefined control method 2910193267Sjkimwithin complex expressions could cause an internal compiler error. 2911167802Sjkim 2912193267SjkimAcpiExec: Implemented full region support for multiple address spaces. 2913193267SjkimSpaceId is now part of the REGION object. BZ 429 2914167802Sjkim 2915167802Sjkim---------------------------------------- 2916167802Sjkim11 October 2006. Summary of changes for version 20061011: 2917167802Sjkim 2918167802Sjkim1) ACPI CA Core Subsystem: 2919167802Sjkim 2920193267SjkimCompleted an AML interpreter performance enhancement for control method 2921193267Sjkimexecution. Previously a 2-pass parse/execution, control methods are now 2922193267Sjkimcompletely parsed and executed in a single pass. This improves overall 2923193267Sjkiminterpreter performance by ~25%, reduces code size, and reduces CPU stack 2924193267Sjkimuse. (Valery Podrezov + interpreter changes in version 20051202 that 2925193267Sjkimeliminated namespace loading during the pass one parse.) 2926167802Sjkim 2927193267SjkimImplemented _CID support for PCI Root Bridge detection. If the _HID does not 2928193267Sjkimmatch the predefined PCI Root Bridge IDs, the _CID list (if present) is now 2929193267Sjkimobtained and also checked for an ID match. 2930167802Sjkim 2931193267SjkimImplemented additional support for the PCI _ADR execution: upsearch until a 2932193267Sjkimdevice scope is found before executing _ADR. This allows PCI_Config 2933193267Sjkimoperation regions to be declared locally within control methods underneath 2934193267SjkimPCI device objects. 2935167802Sjkim 2936193267SjkimFixed a problem with a possible race condition between threads executing 2937193267SjkimAcpiWalkNamespace and the AML interpreter. This condition was removed by 2938193267Sjkimmodifying AcpiWalkNamespace to (by default) ignore all temporary namespace 2939193267Sjkimentries created during any concurrent control method execution. An 2940193267Sjkimadditional namespace race condition is known to exist between 2941193267SjkimAcpiWalkNamespace and the Load/Unload ASL operators and is still under 2942193267Sjkiminvestigation. 2943167802Sjkim 2944193267SjkimRestructured the AML ParseLoop function, breaking it into several 2945193267Sjkimsubfunctions in order to reduce CPU stack use and improve maintainability. 2946193267Sjkim(Mikhail Kouzmich) 2947167802Sjkim 2948193267SjkimAcpiGetHandle: Fix for parameter validation to detect invalid combinations 2949193267Sjkimof prefix handle and pathname. BZ 478 2950167802Sjkim 2951193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2952193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2953193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2954193267Sjkima much larger code and data size. 2955167802Sjkim 2956167802Sjkim Previous Release: 2957167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2958167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2959167802Sjkim Current Release: 2960167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2961167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2962167802Sjkim 2963167802Sjkim2) iASL Compiler/Disassembler and Tools: 2964167802Sjkim 2965193267SjkimPorted the -g option (get local ACPI tables) to the new ACPICA Table Manager 2966193267Sjkimto restore original behavior. 2967167802Sjkim 2968167802Sjkim---------------------------------------- 2969167802Sjkim27 September 2006. Summary of changes for version 20060927: 2970167802Sjkim 2971167802Sjkim1) ACPI CA Core Subsystem: 2972167802Sjkim 2973193267SjkimRemoved the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. 2974193267SjkimThese functions now use a spinlock for mutual exclusion and the interrupt 2975193267Sjkimlevel indication flag is not needed. 2976167802Sjkim 2977193267SjkimFixed a problem with the Global Lock where the lock could appear to be 2978193267Sjkimobtained before it is actually obtained. The global lock semaphore was 2979193267Sjkiminadvertently created with one unit instead of zero units. (BZ 464) Fiodor 2980193267SjkimSuietov. 2981167802Sjkim 2982193267SjkimFixed a possible memory leak and fault in AcpiExResolveObjectToValue during 2983193267Sjkima read from a buffer or region field. (BZ 458) Fiodor Suietov. 2984167802Sjkim 2985193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2986193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2987193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2988193267Sjkima much larger code and data size. 2989167802Sjkim 2990167802Sjkim Previous Release: 2991167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2992167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2993167802Sjkim Current Release: 2994167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2995167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2996167802Sjkim 2997167802Sjkim 2998167802Sjkim2) iASL Compiler/Disassembler and Tools: 2999167802Sjkim 3000193267SjkimFixed a compilation problem with the pre-defined Resource Descriptor field 3001193267Sjkimnames where an "object does not exist" error could be incorrectly generated 3002193267Sjkimif the parent ResourceTemplate pathname places the template within a 3003193267Sjkimdifferent namespace scope than the current scope. (BZ 7212) 3004167802Sjkim 3005193267SjkimFixed a problem where the compiler could hang after syntax errors detected 3006193267Sjkimin an ElseIf construct. (BZ 453) 3007167802Sjkim 3008193267SjkimFixed a problem with the AmlFilename parameter to the DefinitionBlock() 3009193267Sjkimoperator. An incorrect output filename was produced when this parameter was 3010193267Sjkima null string (""). Now, the original input filename is used as the AML 3011193267Sjkimoutput filename, with an ".aml" extension. 3012167802Sjkim 3013193267SjkimImplemented a generic batch command mode for the AcpiExec utility (execute 3014193267Sjkimany AML debugger command) (Valery Podrezov). 3015167802Sjkim 3016167802Sjkim---------------------------------------- 3017167802Sjkim12 September 2006. Summary of changes for version 20060912: 3018167802Sjkim 3019167802Sjkim1) ACPI CA Core Subsystem: 3020167802Sjkim 3021193267SjkimEnhanced the implementation of the "serialized mode" of the interpreter 3022193267Sjkim(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 3023193267Sjkimspecified, instead of creating a serialization semaphore per control method, 3024193267Sjkimthe interpreter lock is simply no longer released before a blocking 3025193267Sjkimoperation during control method execution. This effectively makes the AML 3026193267SjkimInterpreter single-threaded. The overhead of a semaphore per-method is 3027193267Sjkimeliminated. 3028167802Sjkim 3029193267SjkimFixed a regression where an error was no longer emitted if a control method 3030193267Sjkimattempts to create 2 objects of the same name. This once again returns 3031193267SjkimAE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that 3032193267Sjkimwill dynamically serialize the control method to possible prevent future 3033193267Sjkimerrors. (BZ 440) 3034167802Sjkim 3035193267SjkimIntegrated a fix for a problem with PCI Express HID detection in the PCI 3036193267SjkimConfig Space setup procedure. (BZ 7145) 3037167802Sjkim 3038193267SjkimMoved all FADT-related functions to a new file, tbfadt.c. Eliminated the 3039193267SjkimAcpiHwInitialize function - the FADT registers are now validated when the 3040193267Sjkimtable is loaded. 3041167802Sjkim 3042193267SjkimAdded two new warnings during FADT verification - 1) if the FADT is larger 3043193267Sjkimthan the largest known FADT version, and 2) if there is a mismatch between a 3044193267Sjkim32-bit block address and the 64-bit X counterpart (when both are non-zero.) 3045167802Sjkim 3046193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3047193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3048193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3049193267Sjkima much larger code and data size. 3050167802Sjkim 3051167802Sjkim Previous Release: 3052167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 3053167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 3054167802Sjkim Current Release: 3055167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 3056167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 3057167802Sjkim 3058167802Sjkim 3059167802Sjkim2) iASL Compiler/Disassembler and Tools: 3060167802Sjkim 3061193267SjkimFixed a problem with the implementation of the Switch() operator where the 3062193267Sjkimtemporary variable was declared too close to the actual Switch, instead of 3063193267Sjkimat method level. This could cause a problem if the Switch() operator is 3064193267Sjkimwithin a while loop, causing an error on the second iteration. (BZ 460) 3065167802Sjkim 3066193267SjkimDisassembler - fix for error emitted for unknown type for target of scope 3067193267Sjkimoperator. Now, ignore it and continue. 3068167802Sjkim 3069193267SjkimDisassembly of an FADT now verifies the input FADT and reports any errors 3070193267Sjkimfound. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs. 3071167802Sjkim 3072193267SjkimDisassembly of raw data buffers with byte initialization data now prefixes 3073193267Sjkimeach output line with the current buffer offset. 3074167802Sjkim 3075193267SjkimDisassembly of ASF! table now includes all variable-length data fields at 3076193267Sjkimthe end of some of the subtables. 3077167802Sjkim 3078193267SjkimThe disassembler now emits a comment if a buffer appears to be a 3079193267SjkimResourceTemplate, but cannot be disassembled as such because the EndTag does 3080193267Sjkimnot appear at the very end of the buffer. 3081167802Sjkim 3082193267SjkimAcpiExec - Added the "-t" command line option to enable the serialized mode 3083193267Sjkimof the AML interpreter. 3084167802Sjkim 3085167802Sjkim---------------------------------------- 3086167802Sjkim31 August 2006. Summary of changes for version 20060831: 3087167802Sjkim 3088167802Sjkim1) ACPI CA Core Subsystem: 3089167802Sjkim 3090167802SjkimMiscellaneous fixes for the Table Manager: 3091193267Sjkim- Correctly initialize internal common FADT for all 64-bit "X" fields 3092167802Sjkim- Fixed a couple table mapping issues during table load 3093167802Sjkim- Fixed a couple alignment issues for IA64 3094167802Sjkim- Initialize input array to zero in AcpiInitializeTables 3095193267Sjkim- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader, 3096193267SjkimAcpiGetTableByIndex 3097167802Sjkim 3098193267SjkimChange for GPE support: when a "wake" GPE is received, all wake GPEs are now 3099193267Sjkimimmediately disabled to prevent the waking GPE from firing again and to 3100193267Sjkimprevent other wake GPEs from interrupting the wake process. 3101167802Sjkim 3102193267SjkimAdded the AcpiGpeCount global that tracks the number of processed GPEs, to 3103193267Sjkimbe used for debugging systems with a large number of ACPI interrupts. 3104167802Sjkim 3105193267SjkimImplemented support for the "DMAR" ACPI table (DMA Redirection Table) in 3106193267Sjkimboth the ACPICA headers and the disassembler. 3107167802Sjkim 3108193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3109193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3110193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3111193267Sjkima much larger code and data size. 3112167802Sjkim 3113167802Sjkim Previous Release: 3114167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 3115167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 3116167802Sjkim Current Release: 3117167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 3118167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 3119167802Sjkim 3120167802Sjkim 3121167802Sjkim2) iASL Compiler/Disassembler and Tools: 3122167802Sjkim 3123167802SjkimDisassembler support for the DMAR ACPI table. 3124167802Sjkim 3125167802Sjkim---------------------------------------- 3126167802Sjkim23 August 2006. Summary of changes for version 20060823: 3127167802Sjkim 3128167802Sjkim1) ACPI CA Core Subsystem: 3129167802Sjkim 3130193267SjkimThe Table Manager component has been completely redesigned and 3131193267Sjkimreimplemented. The new design is much simpler, and reduces the overall code 3132193267Sjkimand data size of the kernel-resident ACPICA by approximately 5%. Also, it is 3133193267Sjkimnow possible to obtain the ACPI tables very early during kernel 3134193267Sjkiminitialization, even before dynamic memory management is initialized. 3135193267Sjkim(Alexey Starikovskiy, Fiodor Suietov, Bob Moore) 3136167802Sjkim 3137167802SjkimObsolete ACPICA interfaces: 3138167802Sjkim 3139193267Sjkim- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init 3140193267Sjkimtime). 3141167802Sjkim- AcpiLoadTable: Not needed. 3142167802Sjkim- AcpiUnloadTable: Not needed. 3143167802Sjkim 3144167802SjkimNew ACPICA interfaces: 3145167802Sjkim 3146193267Sjkim- AcpiInitializeTables: Must be called before the table manager can be used. 3147193267Sjkim- AcpiReallocateRootTable: Used to transfer the root table to dynamically 3148193267Sjkimallocated memory after it becomes available. 3149193267Sjkim- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables 3150193267Sjkimin the RSDT/XSDT. 3151167802Sjkim 3152167802SjkimOther ACPICA changes: 3153167802Sjkim 3154193267Sjkim- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use 3155193267SjkimAcpiOsUnmapMemory to free this mapping. 3156193267Sjkim- AcpiGetTable returns the actual mapped table. The mapping is managed 3157193267Sjkiminternally and must not be deleted by the caller. Use of this interface 3158193267Sjkimcauses no additional dynamic memory allocation. 3159193267Sjkim- AcpiFindRootPointer: Support for physical addressing has been eliminated, 3160193267Sjkimit appeared to be unused. 3161193267Sjkim- The interface to AcpiOsMapMemory has changed to be consistent with the 3162193267Sjkimother allocation interfaces. 3163193267Sjkim- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary 3164193267Sjkimparameters. 3165193267Sjkim- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64- 3166193267Sjkimbit platforms. Was previously 64 bits on all platforms. 3167193267Sjkim- The interface to the ACPI Global Lock acquire/release macros have changed 3168193267Sjkimslightly since ACPICA no longer keeps a local copy of the FACS with a 3169193267Sjkimconstructed pointer to the actual global lock. 3170167802Sjkim 3171167802SjkimPorting to the new table manager: 3172167802Sjkim 3173193267Sjkim- AcpiInitializeTables: Must be called once, and can be called anytime 3174193267Sjkimduring the OS initialization process. It allows the host to specify an area 3175193267Sjkimof memory to be used to store the internal version of the RSDT/XSDT (root 3176193267Sjkimtable). This allows the host to access ACPI tables before memory management 3177193267Sjkimis initialized and running. 3178193267Sjkim- AcpiReallocateRootTable: Can be called after memory management is running 3179193267Sjkimto copy the root table to a dynamically allocated array, freeing up the 3180193267Sjkimscratch memory specified in the call to AcpiInitializeTables. 3181193267Sjkim- AcpiSubsystemInitialize: This existing interface is independent of the 3182193267SjkimTable Manager, and does not have to be called before the Table Manager can 3183193267Sjkimbe used, it only must be called before the rest of ACPICA can be used. 3184193267Sjkim- ACPI Tables: Some changes have been made to the names and structure of the 3185193267Sjkimactbl.h and actbl1.h header files and may require changes to existing code. 3186193267SjkimFor example, bitfields have been completely removed because of their lack of 3187193267Sjkimportability across C compilers. 3188193267Sjkim- Update interfaces to the Global Lock acquire/release macros if local 3189193267Sjkimversions are used. (see acwin.h) 3190167802Sjkim 3191167802SjkimObsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c 3192167802Sjkim 3193167802SjkimNew files: tbfind.c 3194167802Sjkim 3195193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3196193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3197193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3198193267Sjkima much larger code and data size. 3199167802Sjkim 3200167802Sjkim Previous Release: 3201167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 3202167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 3203167802Sjkim Current Release: 3204167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 3205167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 3206167802Sjkim 3207167802Sjkim 3208167802Sjkim2) iASL Compiler/Disassembler and Tools: 3209167802Sjkim 3210167802SjkimNo changes for this release. 3211167802Sjkim 3212167802Sjkim---------------------------------------- 3213167802Sjkim21 July 2006. Summary of changes for version 20060721: 3214167802Sjkim 3215167802Sjkim1) ACPI CA Core Subsystem: 3216167802Sjkim 3217193267SjkimThe full source code for the ASL test suite used to validate the iASL 3218193267Sjkimcompiler and the ACPICA core subsystem is being released with the ACPICA 3219193267Sjkimsource for the first time. The source is contained in a separate package and 3220193267Sjkimconsists of over 1100 files that exercise all ASL/AML operators. The package 3221193267Sjkimshould appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor 3222167802SjkimSuietov) 3223167802Sjkim 3224193267SjkimCompleted a new design and implementation for support of the ACPI Global 3225193267SjkimLock. On the OS side, the global lock is now treated as a standard AML 3226193267Sjkimmutex. Previously, multiple OS threads could "acquire" the global lock 3227193267Sjkimsimultaneously. However, this could cause the BIOS to be starved out of the 3228193267Sjkimlock - especially in cases such as the Embedded Controller driver where 3229193267Sjkimthere is a tight coupling between the OS and the BIOS. 3230167802Sjkim 3231193267SjkimImplemented an optimization for the ACPI Global Lock interrupt mechanism. 3232193267SjkimThe Global Lock interrupt handler no longer queues the execution of a 3233193267Sjkimseparate thread to signal the global lock semaphore. Instead, the semaphore 3234193267Sjkimis signaled directly from the interrupt handler. 3235167802Sjkim 3236193267SjkimImplemented support within the AML interpreter for package objects that 3237193267Sjkimcontain a larger AML length (package list length) than the package element 3238193267Sjkimcount. In this case, the length of the package is truncated to match the 3239193267Sjkimpackage element count. Some BIOS code apparently modifies the package length 3240193267Sjkimon the fly, and this change supports this behavior. Provides compatibility 3241193267Sjkimwith the MS AML interpreter. (With assistance from Fiodor Suietov) 3242167802Sjkim 3243193267SjkimImplemented a temporary fix for the BankValue parameter of a Bank Field to 3244193267Sjkimsupport all constant values, now including the Zero and One opcodes. 3245193267SjkimEvaluation of this parameter must eventually be converted to a full TermArg 3246193267Sjkimevaluation. A not-implemented error is now returned (temporarily) for non- 3247193267Sjkimconstant values for this parameter. 3248167802Sjkim 3249167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3250193267Sjkim- Fix for premature object deletion after CopyObject on Operation Region (BZ 3251193267Sjkim350) 3252167802Sjkim 3253193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3254193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3255193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3256193267Sjkima much larger code and data size. 3257167802Sjkim 3258167802Sjkim Previous Release: 3259167802Sjkim Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total 3260167802Sjkim Debug Version: 160.9K Code, 65.1K Data, 226.0K Total 3261167802Sjkim Current Release: 3262167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 3263167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 3264167802Sjkim 3265167802Sjkim 3266167802Sjkim2) iASL Compiler/Disassembler and Tools: 3267167802Sjkim 3268167802SjkimNo changes for this release. 3269167802Sjkim 3270167802Sjkim---------------------------------------- 3271167802Sjkim07 July 2006. Summary of changes for version 20060707: 3272167802Sjkim 3273167802Sjkim1) ACPI CA Core Subsystem: 3274167802Sjkim 3275193267SjkimAdded the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers 3276193267Sjkimthat do not allow the initialization of address pointers within packed 3277193267Sjkimstructures - even though the hardware itself may support misaligned 3278193267Sjkimtransfers. Some of the debug data structures are packed by default to 3279193267Sjkimminimize size. 3280167802Sjkim 3281193267SjkimAdded an error message for the case where AcpiOsGetThreadId() returns zero. 3282193267SjkimA non-zero value is required by the core ACPICA code to ensure the proper 3283193267Sjkimoperation of AML mutexes and recursive control methods. 3284167802Sjkim 3285193267SjkimThe DSDT is now the only ACPI table that determines whether the AML 3286193267Sjkiminterpreter is in 32-bit or 64-bit mode. Not really a functional change, but 3287193267Sjkimthe hooks for per-table 32/64 switching have been removed from the code. A 3288193267Sjkimclarification to the ACPI specification is forthcoming in ACPI 3.0B. 3289167802Sjkim 3290193267SjkimFixed a possible leak of an OwnerID in the error path of 3291193267SjkimAcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID 3292193267Sjkimdeletion to a single place in AcpiTbUninstallTable to correct possible leaks 3293193267Sjkimwhen using the AcpiTbDeleteTablesByType interface (with assistance from 3294193267SjkimLance Ortiz.) 3295167802Sjkim 3296193267SjkimFixed a problem with Serialized control methods where the semaphore 3297193267Sjkimassociated with the method could be over-signaled after multiple method 3298193267Sjkiminvocations. 3299167802Sjkim 3300193267SjkimFixed two issues with the locking of the internal namespace data structure. 3301193267SjkimBoth the Unload() operator and AcpiUnloadTable interface now lock the 3302193267Sjkimnamespace during the namespace deletion associated with the table unload 3303193267Sjkim(with assistance from Linn Crosetto.) 3304167802Sjkim 3305167802SjkimFixed problem reports (Valery Podrezov) integrated: 3306193267Sjkim- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426) 3307167802Sjkim 3308167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3309167802Sjkim- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) 3310193267Sjkim- On Address Space handler deletion, needless deactivation call (BZ 374) 3311193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) 3312193267Sjkim- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone 3313193267Sjkim(BZ 376) 3314193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) 3315167802Sjkim- Minimum Length of RSDT should be validated (BZ 379) 3316193267Sjkim- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no 3317193267SjkimHandler (BZ (380) 3318193267Sjkim- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded 3319193267Sjkim(BZ 381) 3320167802Sjkim 3321193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3322193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3323193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3324193267Sjkima much larger code and data size. 3325167802Sjkim 3326167802Sjkim Previous Release: 3327167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 3328167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 3329167802Sjkim Current Release: 3330167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 3331167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 3332167802Sjkim 3333167802Sjkim 3334167802Sjkim2) iASL Compiler/Disassembler and Tools: 3335167802Sjkim 3336167802SjkimFixed problem reports: 3337193267SjkimCompiler segfault when ASL contains a long (>1024) String declaration (BZ 3338193267Sjkim436) 3339167802Sjkim 3340167802Sjkim---------------------------------------- 3341167802Sjkim23 June 2006. Summary of changes for version 20060623: 3342167802Sjkim 3343167802Sjkim1) ACPI CA Core Subsystem: 3344167802Sjkim 3345193267SjkimImplemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This 3346193267Sjkimallows the type to be customized to the host OS for improved efficiency 3347193267Sjkim(since a spinlock is usually a very small object.) 3348167802Sjkim 3349193267SjkimImplemented support for "ignored" bits in the ACPI registers. According to 3350193267Sjkimthe ACPI specification, these bits should be preserved when writing the 3351193267Sjkimregisters via a read/modify/write cycle. There are 3 bits preserved in this 3352193267Sjkimmanner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. 3353167802Sjkim 3354193267SjkimImplemented the initial deployment of new OSL mutex interfaces. Since some 3355193267Sjkimhost operating systems have separate mutex and semaphore objects, this 3356193267Sjkimfeature was requested. The base code now uses mutexes (and the new mutex 3357193267Sjkiminterfaces) wherever a binary semaphore was used previously. However, for 3358193267Sjkimthe current release, the mutex interfaces are defined as macros to map them 3359193267Sjkimto the existing semaphore interfaces. Therefore, no OSL changes are required 3360193267Sjkimat this time. (See acpiosxf.h) 3361167802Sjkim 3362193267SjkimFixed several problems with the support for the control method SyncLevel 3363193267Sjkimparameter. The SyncLevel now works according to the ACPI specification and 3364193267Sjkimin concert with the Mutex SyncLevel parameter, since the current SyncLevel 3365193267Sjkimis a property of the executing thread. Mutual exclusion for control methods 3366193267Sjkimis now implemented with a mutex instead of a semaphore. 3367167802Sjkim 3368193267SjkimFixed three instances of the use of the C shift operator in the bitfield 3369193267Sjkimsupport code (exfldio.c) to avoid the use of a shift value larger than the 3370193267Sjkimtarget data width. The behavior of C compilers is undefined in this case and 3371193267Sjkimcan cause unpredictable results, and therefore the case must be detected and 3372193267Sjkimavoided. (Fiodor Suietov) 3373167802Sjkim 3374193267SjkimAdded an info message whenever an SSDT or OEM table is loaded dynamically 3375193267Sjkimvia the Load() or LoadTable() ASL operators. This should improve debugging 3376193267Sjkimcapability since it will show exactly what tables have been loaded (beyond 3377193267Sjkimthe tables present in the RSDT/XSDT.) 3378167802Sjkim 3379193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3380193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3381193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3382193267Sjkima much larger code and data size. 3383167802Sjkim 3384167802Sjkim Previous Release: 3385167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 3386167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 3387167802Sjkim Current Release: 3388167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 3389167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 3390167802Sjkim 3391167802Sjkim 3392167802Sjkim2) iASL Compiler/Disassembler and Tools: 3393167802Sjkim 3394167802SjkimNo changes for this release. 3395167802Sjkim 3396167802Sjkim---------------------------------------- 3397167802Sjkim08 June 2006. Summary of changes for version 20060608: 3398167802Sjkim 3399167802Sjkim1) ACPI CA Core Subsystem: 3400167802Sjkim 3401193267SjkimConverted the locking mutex used for the ACPI hardware to a spinlock. This 3402193267Sjkimchange should eliminate all problems caused by attempting to acquire a 3403193267Sjkimsemaphore at interrupt level, and it means that all ACPICA external 3404193267Sjkiminterfaces that directly access the ACPI hardware can be safely called from 3405193267Sjkiminterrupt level. OSL code that implements the semaphore interfaces should be 3406193267Sjkimable to eliminate any workarounds for being called at interrupt level. 3407167802Sjkim 3408193267SjkimFixed a regression introduced in 20060526 where the ACPI device 3409193267Sjkiminitialization could be prematurely aborted with an AE_NOT_FOUND if a device 3410193267Sjkimdid not have an optional _INI method. 3411167802Sjkim 3412193267SjkimFixed an IndexField issue where a write to the Data Register should be 3413193267Sjkimlimited in size to the AccessSize (width) of the IndexField itself. (BZ 433, 3414193267SjkimFiodor Suietov) 3415167802Sjkim 3416167802SjkimFixed problem reports (Valery Podrezov) integrated: 3417193267Sjkim- Allow store of ThermalZone objects to Debug object (BZ 5369/5370) 3418167802Sjkim 3419167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3420193267Sjkim- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364) 3421167802Sjkim 3422193267SjkimRemoved four global mutexes that were obsolete and were no longer being 3423193267Sjkimused. 3424167802Sjkim 3425193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3426193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3427193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3428193267Sjkima much larger code and data size. 3429167802Sjkim 3430167802Sjkim Previous Release: 3431167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3432167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3433167802Sjkim Current Release: 3434167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 3435167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 3436167802Sjkim 3437167802Sjkim 3438167802Sjkim2) iASL Compiler/Disassembler and Tools: 3439167802Sjkim 3440193267SjkimFixed a fault when using -g option (get tables from registry) on Windows 3441193267Sjkimmachines. 3442167802Sjkim 3443167802SjkimFixed problem reports integrated: 3444193267Sjkim- Generate error if CreateField NumBits parameter is zero. (BZ 405) 3445193267Sjkim- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor 3446193267SjkimSuietov) 3447167802Sjkim- Global table revision override (-r) is ignored (BZ 413) 3448167802Sjkim 3449167802Sjkim---------------------------------------- 3450167802Sjkim26 May 2006. Summary of changes for version 20060526: 3451167802Sjkim 3452167802Sjkim1) ACPI CA Core Subsystem: 3453167802Sjkim 3454193267SjkimRestructured, flattened, and simplified the internal interfaces for 3455193267Sjkimnamespace object evaluation - resulting in smaller code, less CPU stack use, 3456193267Sjkimand fewer interfaces. (With assistance from Mikhail Kouzmich) 3457167802Sjkim 3458193267SjkimFixed a problem with the CopyObject operator where the first parameter was 3459193267Sjkimnot typed correctly for the parser, interpreter, compiler, and disassembler. 3460193267SjkimCaused various errors and unexpected behavior. 3461167802Sjkim 3462193267SjkimFixed a problem where a ShiftLeft or ShiftRight of more than 64 bits 3463193267Sjkimproduced incorrect results with some C compilers. Since the behavior of C 3464193267Sjkimcompilers when the shift value is larger than the datatype width is 3465193267Sjkimapparently not well defined, the interpreter now detects this condition and 3466193267Sjkimsimply returns zero as expected in all such cases. (BZ 395) 3467167802Sjkim 3468167802SjkimFixed problem reports (Valery Podrezov) integrated: 3469193267Sjkim- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329) 3470193267Sjkim- Allow interpreter to handle nested method declarations (BZ 5361) 3471167802Sjkim 3472167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3473193267Sjkim- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355) 3474193267Sjkim- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356) 3475193267Sjkim- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357) 3476193267Sjkim- Resource Manager should return AE_TYPE for non-device objects (BZ 358) 3477167802Sjkim- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) 3478193267Sjkim- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360) 3479167802Sjkim- Incomplete cleanup branch in AcpiPsParseAml (BZ 361) 3480167802Sjkim- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362) 3481193267Sjkim- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) 3482193267Sjkim- Status of the Global Initialization Handler call not used (BZ 366) 3483193267Sjkim- Incorrect object parameter to Global Initialization Handler (BZ 367) 3484167802Sjkim 3485193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3486193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3487193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3488193267Sjkima much larger code and data size. 3489167802Sjkim 3490167802Sjkim Previous Release: 3491167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3492167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3493167802Sjkim Current Release: 3494167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3495167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3496167802Sjkim 3497167802Sjkim 3498167802Sjkim2) iASL Compiler/Disassembler and Tools: 3499167802Sjkim 3500193267SjkimModified the parser to allow the names IO, DMA, and IRQ to be used as 3501193267Sjkimnamespace identifiers with no collision with existing resource descriptor 3502193267Sjkimmacro names. This provides compatibility with other ASL compilers and is 3503193267Sjkimmost useful for disassembly/recompilation of existing tables without parse 3504167802Sjkimerrors. (With assistance from Thomas Renninger) 3505167802Sjkim 3506193267SjkimDisassembler: fixed an incorrect disassembly problem with the 3507193267SjkimDataTableRegion and CopyObject operators. Fixed a possible fault during 3508193267Sjkimdisassembly of some Alias operators. 3509167802Sjkim 3510167802Sjkim---------------------------------------- 3511167802Sjkim12 May 2006. Summary of changes for version 20060512: 3512167802Sjkim 3513167802Sjkim1) ACPI CA Core Subsystem: 3514167802Sjkim 3515193267SjkimReplaced the AcpiOsQueueForExecution interface with a new interface named 3516193267SjkimAcpiOsExecute. The major difference is that the new interface does not have 3517193267Sjkima Priority parameter, this appeared to be useless and has been replaced by a 3518193267SjkimType parameter. The Type tells the host what type of execution is being 3519193267Sjkimrequested, such as global lock handler, notify handler, GPE handler, etc. 3520193267SjkimThis allows the host to queue and execute the request as appropriate for the 3521193267Sjkimrequest type, possibly using different work queues and different priorities 3522193267Sjkimfor the various request types. This enables fixes for multithreading 3523193267Sjkimdeadlock problems such as BZ #5534, and will require changes to all existing 3524193267SjkimOS interface layers. (Alexey Starikovskiy and Bob Moore) 3525167802Sjkim 3526193267SjkimFixed a possible memory leak associated with the support for the so-called 3527193267Sjkim"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor 3528193267SjkimSuietov) 3529167802Sjkim 3530193267SjkimFixed a problem with the Load() operator where a table load from an 3531193267Sjkimoperation region could overwrite an internal table buffer by up to 7 bytes 3532193267Sjkimand cause alignment faults on IPF systems. (With assistance from Luming Yu) 3533167802Sjkim 3534193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3535193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3536193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3537193267Sjkima much larger code and data size. 3538167802Sjkim 3539167802Sjkim Previous Release: 3540167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3541167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3542167802Sjkim Current Release: 3543167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3544167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3545167802Sjkim 3546167802Sjkim 3547167802Sjkim 3548167802Sjkim2) iASL Compiler/Disassembler and Tools: 3549167802Sjkim 3550193267SjkimDisassembler: Implemented support to cross reference the internal namespace 3551193267Sjkimand automatically generate ASL External() statements for symbols not defined 3552193267Sjkimwithin the current table being disassembled. This will simplify the 3553193267Sjkimdisassembly and recompilation of interdependent tables such as SSDTs since 3554193267Sjkimthese statements will no longer have to be added manually. 3555167802Sjkim 3556193267SjkimDisassembler: Implemented experimental support to automatically detect 3557193267Sjkiminvocations of external control methods and generate appropriate External() 3558193267Sjkimstatements. This is problematic because the AML cannot be correctly parsed 3559193267Sjkimuntil the number of arguments for each control method is known. Currently, 3560193267Sjkimstandalone method invocations and invocations as the source operand of a 3561193267SjkimStore() statement are supported. 3562167802Sjkim 3563193267SjkimDisassembler: Implemented support for the ASL pseudo-operators LNotEqual, 3564193267SjkimLLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()), 3565193267SjkimLNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code 3566193267Sjkimmore readable and likely closer to the original ASL source. 3567167802Sjkim 3568167802Sjkim---------------------------------------- 3569167802Sjkim21 April 2006. Summary of changes for version 20060421: 3570167802Sjkim 3571167802Sjkim1) ACPI CA Core Subsystem: 3572167802Sjkim 3573193267SjkimRemoved a device initialization optimization introduced in 20051216 where 3574193267Sjkimthe _STA method was not run unless an _INI was also present for the same 3575193267Sjkimdevice. This optimization could cause problems because it could allow _INI 3576193267Sjkimmethods to be run within a not-present device subtree. (If a not-present 3577193267Sjkimdevice had no _INI, _STA would not be run, the not-present status would not 3578193267Sjkimbe discovered, and the children of the device would be incorrectly 3579167802Sjkimtraversed.) 3580167802Sjkim 3581193267SjkimImplemented a new _STA optimization where namespace subtrees that do not 3582193267Sjkimcontain _INI are identified and ignored during device initialization. 3583193267SjkimSelectively running _STA can significantly improve boot time on large 3584193267Sjkimmachines (with assistance from Len Brown.) 3585167802Sjkim 3586193267SjkimImplemented support for the device initialization case where the returned 3587193267Sjkim_STA flags indicate a device not-present but functioning. In this case, _INI 3588193267Sjkimis not run, but the device children are examined for presence, as per the 3589193267SjkimACPI specification. 3590167802Sjkim 3591193267SjkimImplemented an additional change to the IndexField support in order to 3592193267Sjkimconform to MS behavior. The value written to the Index Register is not 3593193267Sjkimsimply a byte offset, it is a byte offset in units of the access width of 3594193267Sjkimthe parent Index Field. (Fiodor Suietov) 3595167802Sjkim 3596193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateAddress. This 3597193267Sjkiminterface is called during the creation of all AML operation regions, and 3598193267Sjkimallows the host OS to exert control over what addresses it will allow the 3599193267SjkimAML code to access. Operation Regions whose addresses are disallowed will 3600193267Sjkimcause a runtime exception when they are actually accessed (will not affect 3601193267Sjkimor abort table loading.) See oswinxf or osunixxf for an example 3602167802Sjkimimplementation. 3603167802Sjkim 3604193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateInterface. This 3605193267Sjkiminterface allows the host OS to match the various "optional" 3606193267Sjkiminterface/behavior strings for the _OSI predefined control method as 3607193267Sjkimappropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf 3608193267Sjkimfor an example implementation. 3609167802Sjkim 3610193267SjkimRestructured and corrected various problems in the exception handling code 3611193267Sjkimpaths within DsCallControlMethod and DsTerminateControlMethod in dsmethod 3612193267Sjkim(with assistance from Takayoshi Kochi.) 3613167802Sjkim 3614193267SjkimModified the Linux source converter to ignore quoted string literals while 3615193267Sjkimconverting identifiers from mixed to lower case. This will correct problems 3616193267Sjkimwith the disassembler and other areas where such strings must not be 3617193267Sjkimmodified. 3618167802Sjkim 3619193267SjkimThe ACPI_FUNCTION_* macros no longer require quotes around the function 3620193267Sjkimname. This allows the Linux source converter to convert the names, now that 3621193267Sjkimthe converter ignores quoted strings. 3622167802Sjkim 3623193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3624193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3625193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3626193267Sjkima much larger code and data size. 3627193267Sjkim 3628167802Sjkim Previous Release: 3629167802Sjkim 3630167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3631167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3632167802Sjkim Current Release: 3633167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3634167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3635167802Sjkim 3636167802Sjkim 3637167802Sjkim2) iASL Compiler/Disassembler and Tools: 3638167802Sjkim 3639193267SjkimImplemented 3 new warnings for iASL, and implemented multiple warning levels 3640193267Sjkim(w2 flag). 3641167802Sjkim 3642193267Sjkim1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not 3643193267SjkimWAIT_FOREVER (0xFFFF) and the code does not examine the return value to 3644193267Sjkimcheck for the possible timeout, a warning is issued. 3645167802Sjkim 3646193267Sjkim2) Useless operators: If an ASL operator does not specify an optional target 3647193267Sjkimoperand and it also does not use the function return value from the 3648193267Sjkimoperator, a warning is issued since the operator effectively does nothing. 3649167802Sjkim 3650193267Sjkim3) Unreferenced objects: If a namespace object is created, but never 3651193267Sjkimreferenced, a warning is issued. This is a warning level 2 since there are 3652193267Sjkimcases where this is ok, such as when a secondary table is loaded that uses 3653193267Sjkimthe unreferenced objects. Even so, care is taken to only flag objects that 3654193267Sjkimdon't look like they will ever be used. For example, the reserved methods 3655193267Sjkim(starting with an underscore) are usually not referenced because it is 3656193267Sjkimexpected that the OS will invoke them. 3657167802Sjkim 3658167802Sjkim---------------------------------------- 3659167802Sjkim31 March 2006. Summary of changes for version 20060331: 3660167802Sjkim 3661167802Sjkim1) ACPI CA Core Subsystem: 3662167802Sjkim 3663193267SjkimImplemented header file support for the following additional ACPI tables: 3664193267SjkimASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, 3665193267Sjkimall current and known ACPI tables are now defined in the ACPICA headers and 3666193267Sjkimare available for use by device drivers and other software. 3667167802Sjkim 3668193267SjkimImplemented support to allow tables that contain ACPI names with invalid 3669193267Sjkimcharacters to be loaded. Previously, this would cause the table load to 3670193267Sjkimfail, but since there are several known cases of such tables on existing 3671193267Sjkimmachines, this change was made to enable ACPI support for them. Also, this 3672193267Sjkimmatches the behavior of the Microsoft ACPI implementation. 3673167802Sjkim 3674193267SjkimFixed a couple regressions introduced during the memory optimization in the 3675193267Sjkim20060317 release. The namespace node definition required additional 3676193267Sjkimreorganization and an internal datatype that had been changed to 8-bit was 3677193267Sjkimrestored to 32-bit. (Valery Podrezov) 3678167802Sjkim 3679193267SjkimFixed a problem where a null pointer passed to AcpiUtDeleteGenericState 3680193267Sjkimcould be passed through to AcpiOsReleaseObject which is unexpected. Such 3681193267Sjkimnull pointers are now trapped and ignored, matching the behavior of the 3682193267Sjkimprevious implementation before the deployment of AcpiOsReleaseObject. 3683167802Sjkim(Valery Podrezov, Fiodor Suietov) 3684167802Sjkim 3685193267SjkimFixed a memory mapping leak during the deletion of a SystemMemory operation 3686193267Sjkimregion where a cached memory mapping was not deleted. This became a 3687193267Sjkimnoticeable problem for operation regions that are defined within frequently 3688193267Sjkimused control methods. (Dana Meyers) 3689167802Sjkim 3690193267SjkimReorganized the ACPI table header files into two main files: one for the 3691193267SjkimACPI tables consumed by the ACPICA core, and another for the miscellaneous 3692193267SjkimACPI tables that are consumed by the drivers and other software. The various 3693193267SjkimFADT definitions were merged into one common section and three different 3694193267Sjkimtables (ACPI 1.0, 1.0+, and 2.0) 3695167802Sjkim 3696193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3697193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3698193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3699193267Sjkima much larger code and data size. 3700167802Sjkim 3701167802Sjkim Previous Release: 3702167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3703167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3704167802Sjkim Current Release: 3705167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3706167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3707167802Sjkim 3708167802Sjkim 3709167802Sjkim2) iASL Compiler/Disassembler and Tools: 3710167802Sjkim 3711193267SjkimDisassembler: Implemented support to decode and format all non-AML ACPI 3712193267Sjkimtables (tables other than DSDTs and SSDTs.) This includes the new tables 3713193267Sjkimadded to the ACPICA headers, therefore all current and known ACPI tables are 3714193267Sjkimsupported. 3715167802Sjkim 3716193267SjkimDisassembler: The change to allow ACPI names with invalid characters also 3717193267Sjkimenables the disassembly of such tables. Invalid characters within names are 3718193267Sjkimchanged to '*' to make the name printable; the iASL compiler will still 3719193267Sjkimgenerate an error for such names, however, since this is an invalid ACPI 3720193267Sjkimcharacter. 3721167802Sjkim 3722193267SjkimImplemented an option for AcpiXtract (-a) to extract all tables found in the 3723193267Sjkiminput file. The default invocation extracts only the DSDTs and SSDTs. 3724167802Sjkim 3725193267SjkimFixed a couple of gcc generation issues for iASL and AcpiExec and added a 3726193267Sjkimmakefile for the AcpiXtract utility. 3727167802Sjkim 3728167802Sjkim---------------------------------------- 3729167802Sjkim17 March 2006. Summary of changes for version 20060317: 3730167802Sjkim 3731167802Sjkim1) ACPI CA Core Subsystem: 3732167802Sjkim 3733193267SjkimImplemented the use of a cache object for all internal namespace nodes. 3734193267SjkimSince there are about 1000 static nodes in a typical system, this will 3735193267Sjkimdecrease memory use for cache implementations that minimize per-allocation 3736193267Sjkimoverhead (such as a slab allocator.) 3737167802Sjkim 3738193267SjkimRemoved the reference count mechanism for internal namespace nodes, since it 3739193267Sjkimwas deemed unnecessary. This reduces the size of each namespace node by 3740193267Sjkimabout 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, 3741193267Sjkimand 32 bytes for the 64-bit case. 3742167802Sjkim 3743193267SjkimOptimized several internal data structures to reduce object size on 64-bit 3744193267Sjkimplatforms by packing data within the 64-bit alignment. This includes the 3745193267Sjkimfrequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static 3746193267Sjkiminstances corresponding to the namespace objects. 3747167802Sjkim 3748193267SjkimAdded two new strings for the predefined _OSI method: "Windows 2001.1 SP1" 3749193267Sjkimand "Windows 2006". 3750167802Sjkim 3751193267SjkimSplit the allocation tracking mechanism out to a separate file, from 3752193267Sjkimutalloc.c to uttrack.c. This mechanism appears to be only useful for 3753193267Sjkimapplication-level code. Kernels may wish to not include uttrack.c in 3754193267Sjkimdistributions. 3755167802Sjkim 3756193267SjkimRemoved all remnants of the obsolete ACPI_REPORT_* macros and the associated 3757193267Sjkimcode. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING 3758193267Sjkimmacros.) 3759167802Sjkim 3760193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3761193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3762193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3763193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3764193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3765193267Sjkimcompiler options used during generation. 3766167802Sjkim 3767167802Sjkim Previous Release: 3768167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3769167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3770167802Sjkim Current Release: 3771167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3772167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3773167802Sjkim 3774167802Sjkim 3775167802Sjkim2) iASL Compiler/Disassembler and Tools: 3776167802Sjkim 3777193267SjkimImplemented an ANSI C version of the acpixtract utility. This version will 3778193267Sjkimautomatically extract the DSDT and all SSDTs from the input acpidump text 3779193267Sjkimfile and dump the binary output to separate files. It can also display a 3780193267Sjkimsummary of the input file including the headers for each table found and 3781193267Sjkimwill extract any single ACPI table, with any signature. (See 3782167802Sjkimsource/tools/acpixtract) 3783167802Sjkim 3784167802Sjkim---------------------------------------- 3785167802Sjkim10 March 2006. Summary of changes for version 20060310: 3786167802Sjkim 3787167802Sjkim1) ACPI CA Core Subsystem: 3788167802Sjkim 3789193267SjkimTagged all external interfaces to the subsystem with the new 3790193267SjkimACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist 3791193267Sjkimkernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL 3792193267Sjkimmacro. The default definition is NULL. 3793167802Sjkim 3794193267SjkimAdded the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId. 3795193267SjkimThis allows the host to define this as necessary to simplify kernel 3796193267Sjkimintegration. The default definition is ACPI_NATIVE_UINT. 3797167802Sjkim 3798193267SjkimFixed two interpreter problems related to error processing, the deletion of 3799193267Sjkimobjects, and placing invalid pointers onto the internal operator result 3800193267Sjkimstack. BZ 6028, 6151 (Valery Podrezov) 3801167802Sjkim 3802193267SjkimIncreased the reference count threshold where a warning is emitted for large 3803193267Sjkimreference counts in order to eliminate unnecessary warnings on systems with 3804193267Sjkimlarge namespaces (especially 64-bit.) Increased the value from 0x400 to 3805193267Sjkim0x800. 3806167802Sjkim 3807193267SjkimDue to universal disagreement as to the meaning of the 'c' in the calloc() 3808193267Sjkimfunction, the ACPI_MEM_CALLOCATE macro has been renamed to 3809193267SjkimACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'. 3810193267SjkimACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and 3811193267SjkimACPI_FREE. 3812167802Sjkim 3813193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3814193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3815193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3816193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3817193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3818193267Sjkimcompiler options used during generation. 3819167802Sjkim 3820167802Sjkim Previous Release: 3821167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3822167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3823167802Sjkim Current Release: 3824167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3825167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3826167802Sjkim 3827167802Sjkim 3828167802Sjkim2) iASL Compiler/Disassembler: 3829167802Sjkim 3830193267SjkimDisassembler: implemented support for symbolic resource descriptor 3831193267Sjkimreferences. If a CreateXxxxField operator references a fixed offset within a 3832193267Sjkimresource descriptor, a name is assigned to the descriptor and the offset is 3833193267Sjkimtranslated to the appropriate resource tag and pathname. The addition of 3834193267Sjkimthis support brings the disassembled code very close to the original ASL 3835193267Sjkimsource code and helps eliminate run-time errors when the disassembled code 3836193267Sjkimis modified (and recompiled) in such a way as to invalidate the original 3837193267Sjkimfixed offsets. 3838167802Sjkim 3839193267SjkimImplemented support for a Descriptor Name as the last parameter to the ASL 3840193267SjkimRegister() macro. This parameter was inadvertently left out of the ACPI 3841193267Sjkimspecification, and will be added for ACPI 3.0b. 3842167802Sjkim 3843193267SjkimFixed a problem where the use of the "_OSI" string (versus the full path 3844193267Sjkim"\_OSI") caused an internal compiler error. ("No back ptr to op") 3845167802Sjkim 3846193267SjkimFixed a problem with the error message that occurs when an invalid string is 3847193267Sjkimused for a _HID object (such as one with an embedded asterisk: "*PNP010A".) 3848193267SjkimThe correct message is now displayed. 3849167802Sjkim 3850167802Sjkim---------------------------------------- 3851167802Sjkim17 February 2006. Summary of changes for version 20060217: 3852167802Sjkim 3853167802Sjkim1) ACPI CA Core Subsystem: 3854167802Sjkim 3855193267SjkimImplemented a change to the IndexField support to match the behavior of the 3856193267SjkimMicrosoft AML interpreter. The value written to the Index register is now a 3857193267Sjkimbyte offset, no longer an index based upon the width of the Data register. 3858193267SjkimThis should fix IndexField problems seen on some machines where the Data 3859193267Sjkimregister is not exactly one byte wide. The ACPI specification will be 3860193267Sjkimclarified on this point. 3861167802Sjkim 3862193267SjkimFixed a problem where several resource descriptor types could overrun the 3863193267Sjkiminternal descriptor buffer due to size miscalculation: VendorShort, 3864193267SjkimVendorLong, and Interrupt. This was noticed on IA64 machines, but could 3865193267Sjkimaffect all platforms. 3866167802Sjkim 3867193267SjkimFixed a problem where individual resource descriptors were misaligned within 3868193267Sjkimthe internal buffer, causing alignment faults on IA64 platforms. 3869167802Sjkim 3870193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3871193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3872193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3873193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3874193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3875193267Sjkimcompiler options used during generation. 3876167802Sjkim 3877167802Sjkim Previous Release: 3878167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3879167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3880167802Sjkim Current Release: 3881167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3882167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3883167802Sjkim 3884167802Sjkim 3885167802Sjkim2) iASL Compiler/Disassembler: 3886167802Sjkim 3887193267SjkimImplemented support for new reserved names: _WDG and _WED are Microsoft 3888193267Sjkimextensions for Windows Instrumentation Management, _TDL is a new ACPI- 3889193267Sjkimdefined method (Throttling Depth Limit.) 3890167802Sjkim 3891193267SjkimFixed a problem where a zero-length VendorShort or VendorLong resource 3892193267Sjkimdescriptor was incorrectly emitted as a descriptor of length one. 3893167802Sjkim 3894167802Sjkim---------------------------------------- 3895167802Sjkim10 February 2006. Summary of changes for version 20060210: 3896167802Sjkim 3897167802Sjkim1) ACPI CA Core Subsystem: 3898167802Sjkim 3899193267SjkimRemoved a couple of extraneous ACPI_ERROR messages that appeared during 3900193267Sjkimnormal execution. These became apparent after the conversion from 3901193267SjkimACPI_DEBUG_PRINT. 3902167802Sjkim 3903193267SjkimFixed a problem where the CreateField operator could hang if the BitIndex or 3904193267SjkimNumBits parameter referred to a named object. (Valery Podrezov, BZ 5359) 3905167802Sjkim 3906193267SjkimFixed a problem where a DeRefOf operation on a buffer object incorrectly 3907193267Sjkimfailed with an exception. This also fixes a couple of related RefOf and 3908193267SjkimDeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387) 3909167802Sjkim 3910193267SjkimFixed a problem where the AE_BUFFER_LIMIT exception was returned instead of 3911193267SjkimAE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ 3912193267Sjkim5480) 3913167802Sjkim 3914193267SjkimImplemented a memory cleanup at the end of the execution of each iteration 3915193267Sjkimof an AML While() loop, preventing the accumulation of outstanding objects. 3916193267Sjkim(Valery Podrezov, BZ 5427) 3917167802Sjkim 3918193267SjkimEliminated a chunk of duplicate code in the object resolution code. (Valery 3919193267SjkimPodrezov, BZ 5336) 3920167802Sjkim 3921167802SjkimFixed several warnings during the 64-bit code generation. 3922167802Sjkim 3923193267SjkimThe AcpiSrc source code conversion tool now inserts one line of whitespace 3924193267Sjkimafter an if() statement that is followed immediately by a comment, improving 3925193267Sjkimreadability of the Linux code. 3926167802Sjkim 3927193267SjkimCode and Data Size: The current and previous library sizes for the core 3928193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3929193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3930193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3931193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3932193267Sjkimand data size. Note that these values will vary depending on the efficiency 3933193267Sjkimof the compiler and the compiler options used during generation. 3934167802Sjkim 3935167802Sjkim Previous Release: 3936167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3937167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3938167802Sjkim Current Release: 3939167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3940167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3941167802Sjkim 3942167802Sjkim 3943167802Sjkim2) iASL Compiler/Disassembler: 3944167802Sjkim 3945193267SjkimFixed a problem with the disassembly of a BankField operator with a complex 3946193267Sjkimexpression for the BankValue parameter. 3947167802Sjkim 3948167802Sjkim---------------------------------------- 3949167802Sjkim27 January 2006. Summary of changes for version 20060127: 3950167802Sjkim 3951167802Sjkim1) ACPI CA Core Subsystem: 3952167802Sjkim 3953193267SjkimImplemented support in the Resource Manager to allow unresolved namestring 3954193267Sjkimreferences within resource package objects for the _PRT method. This support 3955193267Sjkimis in addition to the previously implemented unresolved reference support 3956193267Sjkimwithin the AML parser. If the interpreter slack mode is enabled, these 3957193267Sjkimunresolved references will be passed through to the caller as a NULL package 3958167802Sjkimentry. 3959167802Sjkim 3960193267SjkimImplemented and deployed new macros and functions for error and warning 3961193267Sjkimmessages across the subsystem. These macros are simpler and generate less 3962193267Sjkimcode than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, 3963193267SjkimACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older 3964193267Sjkimmacros remain defined to allow ACPI drivers time to migrate to the new 3965193267Sjkimmacros. 3966167802Sjkim 3967193267SjkimImplemented the ACPI_CPU_FLAGS type to simplify host OS integration of the 3968193267SjkimAcquire/Release Lock OSL interfaces. 3969167802Sjkim 3970193267SjkimFixed a problem where Alias ASL operators are sometimes not correctly 3971193267Sjkimresolved, in both the interpreter and the iASL compiler. 3972167802Sjkim 3973193267SjkimFixed several problems with the implementation of the ConcatenateResTemplate 3974193267SjkimASL operator. As per the ACPI specification, zero length buffers are now 3975193267Sjkimtreated as a single EndTag. One-length buffers always cause a fatal 3976193267Sjkimexception. Non-zero length buffers that do not end with a full 2-byte EndTag 3977167802Sjkimcause a fatal exception. 3978167802Sjkim 3979193267SjkimFixed a possible structure overwrite in the AcpiGetObjectInfo external 3980193267Sjkiminterface. (With assistance from Thomas Renninger) 3981167802Sjkim 3982193267SjkimCode and Data Size: The current and previous library sizes for the core 3983193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3984193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3985193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3986193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3987193267Sjkimand data size. Note that these values will vary depending on the efficiency 3988193267Sjkimof the compiler and the compiler options used during generation. 3989167802Sjkim 3990167802Sjkim Previous Release: 3991167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3992167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3993167802Sjkim Current Release: 3994167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3995167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3996167802Sjkim 3997167802Sjkim 3998167802Sjkim2) iASL Compiler/Disassembler: 3999167802Sjkim 4000193267SjkimFixed an internal error that was generated for any forward references to ASL 4001193267SjkimAlias objects. 4002167802Sjkim 4003167802Sjkim---------------------------------------- 4004167802Sjkim13 January 2006. Summary of changes for version 20060113: 4005167802Sjkim 4006167802Sjkim1) ACPI CA Core Subsystem: 4007167802Sjkim 4008193267SjkimAdded 2006 copyright to all module headers and signons. This affects 4009193267Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and the 4010193267Sjkimutilities. 4011193267Sjkim 4012193267SjkimEnhanced the ACPICA error reporting in order to simplify user migration to 4013193267Sjkimthe non-debug version of ACPICA. Replaced all instances of the 4014193267SjkimACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug 4015193267Sjkimlevels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, 4016193267Sjkimrespectively. This preserves all error and warning messages in the non-debug 4017193267Sjkimversion of the ACPICA code (this has been referred to as the "debug lite" 4018193267Sjkimoption.) Over 200 cases were converted to create a total of over 380 4019193267Sjkimerror/warning messages across the ACPICA code. This increases the code and 4020193267Sjkimdata size of the default non-debug version of the code somewhat (about 13K), 4021193267Sjkimbut all error/warning reporting may be disabled if desired (and code 4022193267Sjkimeliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time 4023193267Sjkimconfiguration option. The size of the debug version of ACPICA remains about 4024193267Sjkimthe same. 4025167802Sjkim 4026193267SjkimFixed a memory leak within the AML Debugger "Set" command. One object was 4027193267Sjkimnot properly deleted for every successful invocation of the command. 4028167802Sjkim 4029193267SjkimCode and Data Size: The current and previous library sizes for the core 4030193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4031193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4032193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4033193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4034193267Sjkimand data size. Note that these values will vary depending on the efficiency 4035193267Sjkimof the compiler and the compiler options used during generation. 4036167802Sjkim 4037167802Sjkim Previous Release: 4038167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 4039167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 4040167802Sjkim Current Release: 4041167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 4042167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 4043167802Sjkim 4044167802Sjkim 4045167802Sjkim2) iASL Compiler/Disassembler: 4046167802Sjkim 4047193267SjkimThe compiler now officially supports the ACPI 3.0a specification that was 4048193267Sjkimreleased on December 30, 2005. (Specification is available at www.acpi.info) 4049167802Sjkim 4050167802Sjkim---------------------------------------- 4051167802Sjkim16 December 2005. Summary of changes for version 20051216: 4052167802Sjkim 4053167802Sjkim1) ACPI CA Core Subsystem: 4054167802Sjkim 4055193267SjkimImplemented optional support to allow unresolved names within ASL Package 4056193267Sjkimobjects. A null object is inserted in the package when a named reference 4057193267Sjkimcannot be located in the current namespace. Enabled via the interpreter 4058193267Sjkimslack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines 4059193267Sjkimthat contain such code. 4060167802Sjkim 4061193267SjkimImplemented an optimization to the initialization sequence that can improve 4062193267Sjkimboot time. During ACPI device initialization, the _STA method is now run if 4063193267Sjkimand only if the _INI method exists. The _STA method is used to determine if 4064193267Sjkimthe device is present; An _INI can only be run if _STA returns present, but 4065193267Sjkimit is a waste of time to run the _STA method if the _INI does not exist. 4066167802Sjkim(Prototype and assistance from Dong Wei) 4067167802Sjkim 4068193267SjkimImplemented use of the C99 uintptr_t for the pointer casting macros if it is 4069193267Sjkimavailable in the current compiler. Otherwise, the default (void *) cast is 4070193267Sjkimused as before. 4071167802Sjkim 4072193267SjkimFixed some possible memory leaks found within the execution path of the 4073193267SjkimBreak, Continue, If, and CreateField operators. (Valery Podrezov) 4074167802Sjkim 4075193267SjkimFixed a problem introduced in the 20051202 release where an exception is 4076193267Sjkimgenerated during method execution if a control method attempts to declare 4077193267Sjkimanother method. 4078167802Sjkim 4079193267SjkimMoved resource descriptor string constants that are used by both the AML 4080193267Sjkimdisassembler and AML debugger to the common utilities directory so that 4081193267Sjkimthese components are independent. 4082167802Sjkim 4083193267SjkimImplemented support in the AcpiExec utility (-e switch) to globally ignore 4084193267Sjkimexceptions during control method execution (method is not aborted.) 4085167802Sjkim 4086193267SjkimAdded the rsinfo.c source file to the AcpiExec makefile for Linux/Unix 4087193267Sjkimgeneration. 4088167802Sjkim 4089193267SjkimCode and Data Size: The current and previous library sizes for the core 4090193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4091193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4092193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4093193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4094193267Sjkimand data size. Note that these values will vary depending on the efficiency 4095193267Sjkimof the compiler and the compiler options used during generation. 4096167802Sjkim 4097167802Sjkim Previous Release: 4098167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4099167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 4100167802Sjkim Current Release: 4101167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 4102167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 4103167802Sjkim 4104167802Sjkim 4105167802Sjkim2) iASL Compiler/Disassembler: 4106167802Sjkim 4107193267SjkimFixed a problem where a CPU stack overflow fault could occur if a recursive 4108193267Sjkimmethod call was made from within a Return statement. 4109167802Sjkim 4110167802Sjkim---------------------------------------- 4111167802Sjkim02 December 2005. Summary of changes for version 20051202: 4112167802Sjkim 4113167802Sjkim1) ACPI CA Core Subsystem: 4114167802Sjkim 4115193267SjkimModified the parsing of control methods to no longer create namespace 4116193267Sjkimobjects during the first pass of the parse. Objects are now created only 4117193267Sjkimduring the execute phase, at the moment the namespace creation operator is 4118193267Sjkimencountered in the AML (Name, OperationRegion, CreateByteField, etc.) This 4119193267Sjkimshould eliminate ALREADY_EXISTS exceptions seen on some machines where 4120193267Sjkimreentrant control methods are protected by an AML mutex. The mutex will now 4121193267Sjkimcorrectly block multiple threads from attempting to create the same object 4122193267Sjkimmore than once. 4123167802Sjkim 4124193267SjkimIncreased the number of available Owner Ids for namespace object tracking 4125193267Sjkimfrom 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on 4126193267Sjkimsome machines with a large number of ACPI tables (either static or dynamic). 4127167802Sjkim 4128193267SjkimFixed a problem with the AcpiExec utility where a fault could occur when the 4129193267Sjkim-b switch (batch mode) is used. 4130167802Sjkim 4131193267SjkimEnhanced the namespace dump routine to output the owner ID for each 4132193267Sjkimnamespace object. 4133167802Sjkim 4134193267SjkimCode and Data Size: The current and previous library sizes for the core 4135193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4136193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4137193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4138193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4139193267Sjkimand data size. Note that these values will vary depending on the efficiency 4140193267Sjkimof the compiler and the compiler options used during generation. 4141167802Sjkim 4142167802Sjkim Previous Release: 4143167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4144167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4145167802Sjkim Current Release: 4146167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4147167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 4148167802Sjkim 4149167802Sjkim 4150167802Sjkim2) iASL Compiler/Disassembler: 4151167802Sjkim 4152193267SjkimFixed a parse error during compilation of certain Switch/Case constructs. To 4153193267Sjkimsimplify the parse, the grammar now allows for multiple Default statements 4154193267Sjkimand this error is now detected and flagged during the analysis phase. 4155167802Sjkim 4156193267SjkimDisassembler: The disassembly now includes the contents of the original 4157193267Sjkimtable header within a comment at the start of the file. This includes the 4158193267Sjkimname and version of the original ASL compiler. 4159167802Sjkim 4160167802Sjkim---------------------------------------- 4161167802Sjkim17 November 2005. Summary of changes for version 20051117: 4162167802Sjkim 4163167802Sjkim1) ACPI CA Core Subsystem: 4164167802Sjkim 4165193267SjkimFixed a problem in the AML parser where the method thread count could be 4166193267Sjkimdecremented below zero if any errors occurred during the method parse phase. 4167193267SjkimThis should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. 4168193267SjkimThis also fixed a related regression with the mechanism that detects and 4169193267Sjkimcorrects methods that cannot properly handle reentrancy (related to the 4170193267Sjkimdeployment of the new OwnerId mechanism.) 4171167802Sjkim 4172193267SjkimEliminated the pre-parsing of control methods (to detect errors) during 4173193267Sjkimtable load. Related to the problem above, this was causing unwind issues if 4174193267Sjkimany errors occurred during the parse, and it seemed to be overkill. A table 4175193267Sjkimload should not be aborted if there are problems with any single control 4176193267Sjkimmethod, thus rendering this feature rather pointless. 4177167802Sjkim 4178193267SjkimFixed a problem with the new table-driven resource manager where an internal 4179193267Sjkimbuffer overflow could occur for small resource templates. 4180167802Sjkim 4181193267SjkimImplemented a new external interface, AcpiGetVendorResource. This interface 4182193267Sjkimwill find and return a vendor-defined resource descriptor within a _CRS or 4183193267Sjkim_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas. 4184167802Sjkim 4185193267SjkimRemoved the length limit (200) on string objects as per the upcoming ACPI 4186193267Sjkim3.0A specification. This affects the following areas of the interpreter: 1) 4187193267Sjkimany implicit conversion of a Buffer to a String, 2) a String object result 4188193267Sjkimof the ASL Concatentate operator, 3) the String object result of the ASL 4189193267SjkimToString operator. 4190167802Sjkim 4191193267SjkimFixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER 4192193267Sjkimon a semaphore object would incorrectly timeout. This allows the 4193193267Sjkimmultithreading features of the AcpiExec utility to work properly under 4194193267SjkimWindows. 4195167802Sjkim 4196193267SjkimUpdated the Linux makefiles for the iASL compiler and AcpiExec to include 4197193267Sjkimthe recently added file named "utresrc.c". 4198167802Sjkim 4199193267SjkimCode and Data Size: The current and previous library sizes for the core 4200193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4201193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4202193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4203193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4204193267Sjkimand data size. Note that these values will vary depending on the efficiency 4205193267Sjkimof the compiler and the compiler options used during generation. 4206167802Sjkim 4207167802Sjkim Previous Release: 4208167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 4209167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4210167802Sjkim Current Release: 4211167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4212167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4213167802Sjkim 4214167802Sjkim 4215167802Sjkim2) iASL Compiler/Disassembler: 4216167802Sjkim 4217193267SjkimRemoved the limit (200) on string objects as per the upcoming ACPI 3.0A 4218193267Sjkimspecification. For the iASL compiler, this means that string literals within 4219193267Sjkimthe source ASL can be of any length. 4220167802Sjkim 4221193267SjkimEnhanced the listing output to dump the AML code for resource descriptors 4222193267Sjkimimmediately after the ASL code for each descriptor, instead of in a block at 4223193267Sjkimthe end of the entire resource template. 4224167802Sjkim 4225193267SjkimEnhanced the compiler debug output to dump the entire original parse tree 4226193267Sjkimconstructed during the parse phase, before any transforms are applied to the 4227193267Sjkimtree. The transformed tree is dumped also. 4228167802Sjkim 4229167802Sjkim---------------------------------------- 4230167802Sjkim02 November 2005. Summary of changes for version 20051102: 4231167802Sjkim 4232167802Sjkim1) ACPI CA Core Subsystem: 4233167802Sjkim 4234193267SjkimModified the subsystem initialization sequence to improve GPE support. The 4235193267SjkimGPE initialization has been split into two parts in order to defer execution 4236193267Sjkimof the _PRW methods (Power Resources for Wake) until after the hardware is 4237193267Sjkimfully initialized and the SCI handler is installed. This allows the _PRW 4238193267Sjkimmethods to access fields protected by the Global Lock. This will fix systems 4239193267Sjkimwhere a NO_GLOBAL_LOCK exception has been seen during initialization. 4240167802Sjkim 4241193267SjkimConverted the ACPI internal object disassemble and display code within the 4242193267SjkimAML debugger to fully table-driven operation, reducing code size and 4243193267Sjkimincreasing maintainability. 4244167802Sjkim 4245193267SjkimFixed a regression with the ConcatenateResTemplate() ASL operator introduced 4246193267Sjkimin the 20051021 release. 4247167802Sjkim 4248193267SjkimImplemented support for "local" internal ACPI object types within the 4249193267Sjkimdebugger "Object" command and the AcpiWalkNamespace external interfaces. 4250193267SjkimThese local types include RegionFields, BankFields, IndexFields, Alias, and 4251193267Sjkimreference objects. 4252167802Sjkim 4253193267SjkimMoved common AML resource handling code into a new file, "utresrc.c". This 4254193267Sjkimcode is shared by both the Resource Manager and the AML Debugger. 4255167802Sjkim 4256193267SjkimCode and Data Size: The current and previous library sizes for the core 4257193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4258193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4259193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4260193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4261193267Sjkimand data size. Note that these values will vary depending on the efficiency 4262193267Sjkimof the compiler and the compiler options used during generation. 4263167802Sjkim 4264167802Sjkim Previous Release: 4265167802Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 4266167802Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 4267167802Sjkim Current Release: 4268167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 4269167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4270167802Sjkim 4271167802Sjkim 4272167802Sjkim2) iASL Compiler/Disassembler: 4273167802Sjkim 4274193267SjkimFixed a problem with very large initializer lists (more than 4000 elements) 4275193267Sjkimfor both Buffer and Package objects where the parse stack could overflow. 4276167802Sjkim 4277193267SjkimEnhanced the pre-compile source code scan for non-ASCII characters to ignore 4278193267Sjkimcharacters within comment fields. The scan is now always performed and is no 4279193267Sjkimlonger optional, detecting invalid characters within a source file 4280193267Sjkimimmediately rather than during the parse phase or later. 4281167802Sjkim 4282193267SjkimEnhanced the ASL grammar definition to force early reductions on all list- 4283193267Sjkimstyle grammar elements so that the overall parse stack usage is greatly 4284193267Sjkimreduced. This should improve performance and reduce the possibility of parse 4285193267Sjkimstack overflow. 4286167802Sjkim 4287193267SjkimEliminated all reduce/reduce conflicts in the iASL parser generation. Also, 4288193267Sjkimwith the addition of a %expected statement, the compiler generates from 4289193267Sjkimsource with no warnings. 4290167802Sjkim 4291193267SjkimFixed a possible segment fault in the disassembler if the input filename 4292193267Sjkimdoes not contain a "dot" extension (Thomas Renninger). 4293167802Sjkim 4294167802Sjkim---------------------------------------- 4295151937Sjkim21 October 2005. Summary of changes for version 20051021: 4296151937Sjkim 4297151937Sjkim1) ACPI CA Core Subsystem: 4298151937Sjkim 4299193267SjkimImplemented support for the EM64T and other x86-64 processors. This 4300193267Sjkimessentially entails recognizing that these processors support non-aligned 4301193267Sjkimmemory transfers. Previously, all 64-bit processors were assumed to lack 4302193267Sjkimhardware support for non-aligned transfers. 4303151937Sjkim 4304193267SjkimCompleted conversion of the Resource Manager to nearly full table-driven 4305193267Sjkimoperation. Specifically, the resource conversion code (convert AML to 4306193267Sjkiminternal format and the reverse) and the debug code to dump internal 4307193267Sjkimresource descriptors are fully table-driven, reducing code and data size and 4308193267Sjkimimproving maintainability. 4309151937Sjkim 4310193267SjkimThe OSL interfaces for Acquire and Release Lock now use a 64-bit flag word 4311193267Sjkimon 64-bit processors instead of a fixed 32-bit word. (With assistance from 4312193267SjkimAlexey Starikovskiy) 4313151937Sjkim 4314193267SjkimImplemented support within the resource conversion code for the Type- 4315193267SjkimSpecific byte within the various ACPI 3.0 *WordSpace macros. 4316151937Sjkim 4317193267SjkimFixed some issues within the resource conversion code for the type-specific 4318193267Sjkimflags for both Memory and I/O address resource descriptors. For Memory, 4319193267Sjkimimplemented support for the MTP and TTP flags. For I/O, split the TRS and 4320193267SjkimTTP flags into two separate fields. 4321151937Sjkim 4322193267SjkimCode and Data Size: The current and previous library sizes for the core 4323193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4324193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4325193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4326193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4327193267Sjkimand data size. Note that these values will vary depending on the efficiency 4328193267Sjkimof the compiler and the compiler options used during generation. 4329151937Sjkim 4330151937Sjkim Previous Release: 4331151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 4332151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 4333151937Sjkim Current Release: 4334151937Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 4335151937Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 4336151937Sjkim 4337151937Sjkim 4338167802Sjkim 4339151937Sjkim2) iASL Compiler/Disassembler: 4340151937Sjkim 4341193267SjkimRelaxed a compiler restriction that disallowed a ResourceIndex byte if the 4342193267Sjkimcorresponding ResourceSource string was not also present in a resource 4343193267Sjkimdescriptor declaration. This restriction caused problems with existing 4344193267SjkimAML/ASL code that includes the Index byte without the string. When such AML 4345193267Sjkimwas disassembled, it could not be compiled without modification. Further, 4346193267Sjkimthe modified code created a resource template with a different size than the 4347193267Sjkimoriginal, breaking code that used fixed offsets into the resource template 4348193267Sjkimbuffer. 4349151937Sjkim 4350193267SjkimRemoved a recent feature of the disassembler to ignore a lone ResourceIndex 4351193267Sjkimbyte. This byte is now emitted if present so that the exact AML can be 4352193267Sjkimreproduced when the disassembled code is recompiled. 4353151937Sjkim 4354193267SjkimImproved comments and text alignment for the resource descriptor code 4355193267Sjkimemitted by the disassembler. 4356151937Sjkim 4357193267SjkimImplemented disassembler support for the ACPI 3.0 AccessSize field within a 4358193267SjkimRegister() resource descriptor. 4359151937Sjkim 4360151937Sjkim---------------------------------------- 4361151937Sjkim30 September 2005. Summary of changes for version 20050930: 4362151937Sjkim 4363151937Sjkim1) ACPI CA Core Subsystem: 4364151937Sjkim 4365193267SjkimCompleted a major overhaul of the Resource Manager code - specifically, 4366193267Sjkimoptimizations in the area of the AML/internal resource conversion code. The 4367193267Sjkimcode has been optimized to simplify and eliminate duplicated code, CPU stack 4368193267Sjkimuse has been decreased by optimizing function parameters and local 4369193267Sjkimvariables, and naming conventions across the manager have been standardized 4370193267Sjkimfor clarity and ease of maintenance (this includes function, parameter, 4371193267Sjkimvariable, and struct/typedef names.) The update may force changes in some 4372193267Sjkimdriver code, depending on how resources are handled by the host OS. 4373151937Sjkim 4374193267SjkimAll Resource Manager dispatch and information tables have been moved to a 4375193267Sjkimsingle location for clarity and ease of maintenance. One new file was 4376193267Sjkimcreated, named "rsinfo.c". 4377151937Sjkim 4378193267SjkimThe ACPI return macros (return_ACPI_STATUS, etc.) have been modified to 4379193267Sjkimguarantee that the argument is not evaluated twice, making them less prone 4380193267Sjkimto macro side-effects. However, since there exists the possibility of 4381193267Sjkimadditional stack use if a particular compiler cannot optimize them (such as 4382193267Sjkimin the debug generation case), the original macros are optionally available. 4383193267SjkimNote that some invocations of the return_VALUE macro may now cause size 4384193267Sjkimmismatch warnings; the return_UINT8 and return_UINT32 macros are provided to 4385193267Sjkimeliminate these. (From Randy Dunlap) 4386151937Sjkim 4387193267SjkimImplemented a new mechanism to enable debug tracing for individual control 4388193267Sjkimmethods. A new external interface, AcpiDebugTrace, is provided to enable 4389193267Sjkimthis mechanism. The intent is to allow the host OS to easily enable and 4390193267Sjkimdisable tracing for problematic control methods. This interface can be 4391193267Sjkimeasily exposed to a user or debugger interface if desired. See the file 4392151937Sjkimpsxface.c for details. 4393151937Sjkim 4394193267SjkimAcpiUtCallocate will now return a valid pointer if a length of zero is 4395193267Sjkimspecified - a length of one is used and a warning is issued. This matches 4396193267Sjkimthe behavior of AcpiUtAllocate. 4397151937Sjkim 4398193267SjkimCode and Data Size: The current and previous library sizes for the core 4399193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4400193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4401193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4402193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4403193267Sjkimand data size. Note that these values will vary depending on the efficiency 4404193267Sjkimof the compiler and the compiler options used during generation. 4405151937Sjkim 4406151937Sjkim Previous Release: 4407151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4408151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4409151937Sjkim Current Release: 4410151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 4411151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 4412151937Sjkim 4413151937Sjkim 4414151937Sjkim2) iASL Compiler/Disassembler: 4415151937Sjkim 4416193267SjkimA remark is issued if the effective compile-time length of a package or 4417193267Sjkimbuffer is zero. Previously, this was a warning. 4418151937Sjkim 4419151937Sjkim---------------------------------------- 4420151937Sjkim16 September 2005. Summary of changes for version 20050916: 4421151937Sjkim 4422151937Sjkim1) ACPI CA Core Subsystem: 4423151937Sjkim 4424193267SjkimFixed a problem within the Resource Manager where support for the Generic 4425193267SjkimRegister descriptor was not fully implemented. This descriptor is now fully 4426193267Sjkimrecognized, parsed, disassembled, and displayed. 4427151937Sjkim 4428193267SjkimCompletely restructured the Resource Manager code to utilize table-driven 4429193267Sjkimdispatch and lookup, eliminating many of the large switch() statements. This 4430193267Sjkimreduces overall subsystem code size and code complexity. Affects the 4431193267Sjkimresource parsing and construction, disassembly, and debug dump output. 4432151937Sjkim 4433193267SjkimCleaned up and restructured the debug dump output for all resource 4434193267Sjkimdescriptors. Improved readability of the output and reduced code size. 4435151937Sjkim 4436193267SjkimFixed a problem where changes to internal data structures caused the 4437193267Sjkimoptional ACPI_MUTEX_DEBUG code to fail compilation if specified. 4438151937Sjkim 4439193267SjkimCode and Data Size: The current and previous library sizes for the core 4440193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4441193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4442193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4443193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4444193267Sjkimand data size. Note that these values will vary depending on the efficiency 4445193267Sjkimof the compiler and the compiler options used during generation. 4446151937Sjkim 4447151937Sjkim Previous Release: 4448151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4449151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4450151937Sjkim Current Release: 4451151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4452151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4453151937Sjkim 4454151937Sjkim 4455151937Sjkim2) iASL Compiler/Disassembler: 4456151937Sjkim 4457193267SjkimUpdated the disassembler to automatically insert an EndDependentFn() macro 4458193267Sjkiminto the ASL stream if this macro is missing in the original AML code, 4459193267Sjkimsimplifying compilation of the resulting ASL module. 4460151937Sjkim 4461193267SjkimFixed a problem in the disassembler where a disassembled ResourceSource 4462193267Sjkimstring (within a large resource descriptor) was not surrounded by quotes and 4463193267Sjkimnot followed by a comma, causing errors when the resulting ASL module was 4464193267Sjkimcompiled. Also, escape sequences within a ResourceSource string are now 4465193267Sjkimhandled correctly (especially "\\") 4466151937Sjkim 4467151937Sjkim---------------------------------------- 4468151937Sjkim02 September 2005. Summary of changes for version 20050902: 4469151937Sjkim 4470151937Sjkim1) ACPI CA Core Subsystem: 4471151937Sjkim 4472193267SjkimFixed a problem with the internal Owner ID allocation and deallocation 4473193267Sjkimmechanisms for control method execution and recursive method invocation. 4474193267SjkimThis should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" 4475193267Sjkimmessages seen on some systems. Recursive method invocation depth is 4476193267Sjkimcurrently limited to 255. (Alexey Starikovskiy) 4477151937Sjkim 4478193267SjkimCompletely eliminated all vestiges of support for the "module-level 4479193267Sjkimexecutable code" until this support is fully implemented and debugged. This 4480193267Sjkimshould eliminate the NO_RETURN_VALUE exceptions seen during table load on 4481193267Sjkimsome systems that invoke this support. 4482151937Sjkim 4483193267SjkimFixed a problem within the resource manager code where the transaction flags 4484193267Sjkimfor a 64-bit address descriptor were handled incorrectly in the type- 4485193267Sjkimspecific flag byte. 4486151937Sjkim 4487193267SjkimConsolidated duplicate code within the address descriptor resource manager 4488193267Sjkimcode, reducing overall subsystem code size. 4489151937Sjkim 4490193267SjkimFixed a fault when using the AML debugger "disassemble" command to 4491193267Sjkimdisassemble individual control methods. 4492151937Sjkim 4493193267SjkimRemoved references to the "release_current" directory within the Unix 4494193267Sjkimrelease package. 4495151937Sjkim 4496193267SjkimCode and Data Size: The current and previous core subsystem library sizes 4497193267Sjkimare shown below. These are the code and data sizes for the acpica.lib 4498193267Sjkimproduced by the Microsoft Visual C++ 6.0 compiler. These values do not 4499193267Sjkiminclude any ACPI driver or OSPM code. The debug version of the code includes 4500193267Sjkimthe debug output trace mechanism and has a much larger code and data size. 4501193267SjkimNote that these values will vary depending on the efficiency of the compiler 4502193267Sjkimand the compiler options used during generation. 4503151937Sjkim 4504151937Sjkim Previous Release: 4505151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4506151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4507151937Sjkim Current Release: 4508151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4509151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4510151937Sjkim 4511151937Sjkim 4512151937Sjkim2) iASL Compiler/Disassembler: 4513151937Sjkim 4514193267SjkimImplemented an error check for illegal duplicate values in the interrupt and 4515193267Sjkimdma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and 4516193267SjkimInterrupt(). 4517151937Sjkim 4518193267SjkimImplemented error checking for the Irq() and IrqNoFlags() macros to detect 4519193267Sjkimtoo many values in the interrupt list (16 max) and invalid values in the 4520193267Sjkimlist (range 0 - 15) 4521151937Sjkim 4522193267SjkimThe maximum length string literal within an ASL file is now restricted to 4523193267Sjkim200 characters as per the ACPI specification. 4524151937Sjkim 4525193267SjkimFixed a fault when using the -ln option (generate namespace listing). 4526151937Sjkim 4527193267SjkimImplemented an error check to determine if a DescriptorName within a 4528193267Sjkimresource descriptor has already been used within the current scope. 4529151937Sjkim 4530151937Sjkim---------------------------------------- 4531151937Sjkim15 August 2005. Summary of changes for version 20050815: 4532193267Sjkim 4533151937Sjkim1) ACPI CA Core Subsystem: 4534193267Sjkim 4535193267SjkimImplemented a full bytewise compare to determine if a table load request is 4536193267Sjkimattempting to load a duplicate table. The compare is performed if the table 4537193267Sjkimsignatures and table lengths match. This will allow different tables with 4538193267Sjkimthe same OEM Table ID and revision to be loaded - probably against the ACPI 4539193267Sjkimspecification, but discovered in the field nonetheless. 4540193267Sjkim 4541193267SjkimAdded the changes.txt logfile to each of the zipped release packages. 4542193267Sjkim 4543193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4544193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4545193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4546193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4547193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4548193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4549193267Sjkimthe compiler options used during generation. 4550193267Sjkim 4551151937Sjkim Previous Release: 4552151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4553151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4554151937Sjkim Current Release: 4555151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4556151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4557193267Sjkim 4558193267Sjkim 4559151937Sjkim2) iASL Compiler/Disassembler: 4560193267Sjkim 4561193267SjkimFixed a problem where incorrect AML code could be generated for Package 4562193267Sjkimobjects if optimization is disabled (via the -oa switch). 4563193267Sjkim 4564193267SjkimFixed a problem with where incorrect AML code is generated for variable- 4565193267Sjkimlength packages when the package length is not specified and the number of 4566193267Sjkiminitializer values is greater than 255. 4567193267Sjkim 4568151937Sjkim 4569151937Sjkim---------------------------------------- 4570151937Sjkim29 July 2005. Summary of changes for version 20050729: 4571151937Sjkim 4572151937Sjkim1) ACPI CA Core Subsystem: 4573151937Sjkim 4574193267SjkimImplemented support to ignore an attempt to install/load a particular ACPI 4575193267Sjkimtable more than once. Apparently there exists BIOS code that repeatedly 4576193267Sjkimattempts to load the same SSDT upon certain events. With assistance from 4577193267SjkimVenkatesh Pallipadi. 4578151937Sjkim 4579193267SjkimRestructured the main interface to the AML parser in order to correctly 4580193267Sjkimhandle all exceptional conditions. This will prevent leakage of the OwnerId 4581193267Sjkimresource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some 4582193267Sjkimmachines. With assistance from Alexey Starikovskiy. 4583151937Sjkim 4584193267SjkimSupport for "module level code" has been disabled in this version due to a 4585193267Sjkimnumber of issues that have appeared on various machines. The support can be 4586193267Sjkimenabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem 4587193267Sjkimcompilation. When the issues are fully resolved, the code will be enabled by 4588151937Sjkimdefault again. 4589151937Sjkim 4590193267SjkimModified the internal functions for debug print support to define the 4591193267SjkimFunctionName parameter as a (const char *) for compatibility with compiler 4592193267Sjkimbuilt-in macros such as __FUNCTION__, etc. 4593151937Sjkim 4594151937SjkimLinted the entire ACPICA source tree for both 32-bit and 64-bit. 4595151937Sjkim 4596193267SjkimImplemented support to display an object count summary for the AML Debugger 4597193267Sjkimcommands Object and Methods. 4598151937Sjkim 4599193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4600193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4601193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4602193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4603193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4604193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4605193267Sjkimthe compiler options used during generation. 4606151937Sjkim 4607151937Sjkim Previous Release: 4608151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 4609151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4610151937Sjkim Current Release: 4611151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4612151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4613151937Sjkim 4614151937Sjkim 4615151937Sjkim2) iASL Compiler/Disassembler: 4616151937Sjkim 4617193267SjkimFixed a regression that appeared in the 20050708 version of the compiler 4618193267Sjkimwhere an error message was inadvertently emitted for invocations of the _OSI 4619193267Sjkimreserved control method. 4620151937Sjkim 4621151937Sjkim---------------------------------------- 4622151937Sjkim08 July 2005. Summary of changes for version 20050708: 4623151937Sjkim 4624151937Sjkim1) ACPI CA Core Subsystem: 4625151937Sjkim 4626193267SjkimThe use of the CPU stack in the debug version of the subsystem has been 4627193267Sjkimconsiderably reduced. Previously, a debug structure was declared in every 4628193267Sjkimfunction that used the debug macros. This structure has been removed in 4629193267Sjkimfavor of declaring the individual elements as parameters to the debug 4630193267Sjkimfunctions. This reduces the cumulative stack use during nested execution of 4631193267SjkimACPI function calls at the cost of a small increase in the code size of the 4632193267Sjkimdebug version of the subsystem. With assistance from Alexey Starikovskiy and 4633193267SjkimLen Brown. 4634151937Sjkim 4635193267SjkimAdded the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent 4636193267Sjkimheaders to define a macro that will return the current function name at 4637193267Sjkimruntime (such as __FUNCTION__ or _func_, etc.) The function name is used by 4638193267Sjkimthe debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the 4639193267Sjkimcompiler-dependent header, the function name is saved on the CPU stack (one 4640193267Sjkimpointer per function.) This mechanism is used because apparently there 4641193267Sjkimexists no standard ANSI-C defined macro that that returns the function name. 4642151937Sjkim 4643193267SjkimRedesigned and reimplemented the "Owner ID" mechanism used to track 4644193267Sjkimnamespace objects created/deleted by ACPI tables and control method 4645193267Sjkimexecution. A bitmap is now used to allocate and free the IDs, thus solving 4646193267Sjkimthe wraparound problem present in the previous implementation. The size of 4647193267Sjkimthe namespace node descriptor was reduced by 2 bytes as a result (Alexey 4648151937SjkimStarikovskiy). 4649151937Sjkim 4650193267SjkimRemoved the UINT32_BIT and UINT16_BIT types that were used for the bitfield 4651193267Sjkimflag definitions within the headers for the predefined ACPI tables. These 4652193267Sjkimhave been replaced by UINT8_BIT in order to increase the code portability of 4653193267Sjkimthe subsystem. If the use of UINT8 remains a problem, we may be forced to 4654193267Sjkimeliminate bitfields entirely because of a lack of portability. 4655151937Sjkim 4656193267SjkimEnhanced the performance of the AcpiUtUpdateObjectReference procedure. This 4657193267Sjkimis a frequently used function and this improvement increases the performance 4658193267Sjkimof the entire subsystem (Alexey Starikovskiy). 4659151937Sjkim 4660193267SjkimFixed several possible memory leaks and the inverse - premature object 4661193267Sjkimdeletion (Alexey Starikovskiy). 4662151937Sjkim 4663193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4664193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4665193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4666193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4667193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4668193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4669193267Sjkimthe compiler options used during generation. 4670151937Sjkim 4671151937Sjkim Previous Release: 4672151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4673151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4674151937Sjkim Current Release: 4675151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 4676151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4677151937Sjkim 4678151937Sjkim---------------------------------------- 4679151937Sjkim24 June 2005. Summary of changes for version 20050624: 4680151937Sjkim 4681151937Sjkim1) ACPI CA Core Subsystem: 4682151937Sjkim 4683193267SjkimModified the new OSL cache interfaces to use ACPI_CACHE_T as the type for 4684193267Sjkimthe host-defined cache object. This allows the OSL implementation to define 4685193267Sjkimand type this object in any manner desired, simplifying the OSL 4686193267Sjkimimplementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for 4687193267SjkimLinux, and should be defined in the OS-specific header file for other 4688193267Sjkimoperating systems as required. 4689151937Sjkim 4690193267SjkimChanged the interface to AcpiOsAcquireObject to directly return the 4691193267Sjkimrequested object as the function return (instead of ACPI_STATUS.) This 4692193267Sjkimchange was made for performance reasons, since this is the purpose of the 4693193267Sjkiminterface in the first place. AcpiOsAcquireObject is now similar to the 4694193267SjkimAcpiOsAllocate interface. 4695151937Sjkim 4696193267SjkimImplemented a new AML debugger command named Businfo. This command displays 4697193267Sjkiminformation about all devices that have an associate _PRT object. The _ADR, 4698193267Sjkim_HID, _UID, and _CID are displayed for these devices. 4699151937Sjkim 4700193267SjkimModified the initialization sequence in AcpiInitializeSubsystem to call the 4701193267SjkimOSL interface AcpiOslInitialize first, before any local initialization. This 4702193267Sjkimchange was required because the global initialization now calls OSL 4703193267Sjkiminterfaces. 4704151937Sjkim 4705193267SjkimEnhanced the Dump command to display the entire contents of Package objects 4706193267Sjkim(including all sub-objects and their values.) 4707151937Sjkim 4708193267SjkimRestructured the code base to split some files because of size and/or 4709193267Sjkimbecause the code logically belonged in a separate file. New files are listed 4710193267Sjkimbelow. All makefiles and project files included in the ACPI CA release have 4711193267Sjkimbeen updated. 4712151937Sjkim utilities/utcache.c /* Local cache interfaces */ 4713151937Sjkim utilities/utmutex.c /* Local mutex support */ 4714151937Sjkim utilities/utstate.c /* State object support */ 4715151937Sjkim interpreter/parser/psloop.c /* Main AML parse loop */ 4716151937Sjkim 4717193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4718193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4719193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4720193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4721193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4722193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4723193267Sjkimthe compiler options used during generation. 4724151937Sjkim 4725151937Sjkim Previous Release: 4726151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4727151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4728151937Sjkim Current Release: 4729151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4730151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4731151937Sjkim 4732151937Sjkim 4733151937Sjkim2) iASL Compiler/Disassembler: 4734151937Sjkim 4735193267SjkimFixed a regression introduced in version 20050513 where the use of a Package 4736193267Sjkimobject within a Case() statement caused a compile time exception. The 4737193267Sjkimoriginal behavior has been restored (a Match() operator is emitted.) 4738151937Sjkim 4739151937Sjkim---------------------------------------- 4740151937Sjkim17 June 2005. Summary of changes for version 20050617: 4741151937Sjkim 4742151937Sjkim1) ACPI CA Core Subsystem: 4743151937Sjkim 4744193267SjkimMoved the object cache operations into the OS interface layer (OSL) to allow 4745193267Sjkimthe host OS to handle these operations if desired (for example, the Linux 4746193267SjkimOSL will invoke the slab allocator). This support is optional; the compile 4747193267Sjkimtime define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache 4748193267Sjkimcode in the ACPI CA core. The new OSL interfaces are shown below. See 4749193267Sjkimutalloc.c for an example implementation, and acpiosxf.h for the exact 4750193267Sjkiminterface definitions. With assistance from Alexey Starikovskiy. 4751151937Sjkim AcpiOsCreateCache 4752151937Sjkim AcpiOsDeleteCache 4753151937Sjkim AcpiOsPurgeCache 4754151937Sjkim AcpiOsAcquireObject 4755151937Sjkim AcpiOsReleaseObject 4756151937Sjkim 4757193267SjkimModified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return 4758193267Sjkimand restore a flags parameter. This fits better with many OS lock models. 4759193267SjkimNote: the current execution state (interrupt handler or not) is no longer 4760193267Sjkimpassed to these interfaces. If necessary, the OSL must determine this state 4761193267Sjkimby itself, a simple and fast operation. With assistance from Alexey 4762151937SjkimStarikovskiy. 4763151937Sjkim 4764193267SjkimFixed a problem in the ACPI table handling where a valid XSDT was assumed 4765193267Sjkimpresent if the revision of the RSDP was 2 or greater. According to the ACPI 4766193267Sjkimspecification, the XSDT is optional in all cases, and the table manager 4767193267Sjkimtherefore now checks for both an RSDP >=2 and a valid XSDT pointer. 4768193267SjkimOtherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain 4769193267Sjkimonly the RSDT. 4770151937Sjkim 4771193267SjkimFixed an interpreter problem with the Mid() operator in the case of an input 4772193267Sjkimstring where the resulting output string is of zero length. It now correctly 4773193267Sjkimreturns a valid, null terminated string object instead of a string object 4774193267Sjkimwith a null pointer. 4775151937Sjkim 4776193267SjkimFixed a problem with the control method argument handling to allow a store 4777193267Sjkimto an Arg object that already contains an object of type Device. The Device 4778193267Sjkimobject is now correctly overwritten. Previously, an error was returned. 4779151937Sjkim 4780167802Sjkim 4781193267SjkimEnhanced the debugger Find command to emit object values in addition to the 4782193267Sjkimfound object pathnames. The output format is the same as the dump namespace 4783193267Sjkimcommand. 4784151937Sjkim 4785193267SjkimEnhanced the debugger Set command. It now has the ability to set the value 4786193267Sjkimof any Named integer object in the namespace (Previously, only method locals 4787193267Sjkimand args could be set.) 4788151937Sjkim 4789193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4790193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4791193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4792193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4793193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4794193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4795193267Sjkimthe compiler options used during generation. 4796151937Sjkim 4797151937Sjkim Previous Release: 4798151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 4799151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4800151937Sjkim Current Release: 4801151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4802151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4803151937Sjkim 4804151937Sjkim 4805151937Sjkim2) iASL Compiler/Disassembler: 4806151937Sjkim 4807193267SjkimFixed a regression in the disassembler where if/else/while constructs were 4808193267Sjkimoutput incorrectly. This problem was introduced in the previous release 4809193267Sjkim(20050526). This problem also affected the single-step disassembly in the 4810193267Sjkimdebugger. 4811151937Sjkim 4812193267SjkimFixed a problem where compiling the reserved _OSI method would randomly (but 4813193267Sjkimrarely) produce compile errors. 4814151937Sjkim 4815193267SjkimEnhanced the disassembler to emit compilable code in the face of incorrect 4816193267SjkimAML resource descriptors. If the optional ResourceSourceIndex is present, 4817193267Sjkimbut the ResourceSource is not, do not emit the ResourceSourceIndex in the 4818193267Sjkimdisassembly. Otherwise, the resulting code cannot be compiled without 4819193267Sjkimerrors. 4820151937Sjkim 4821151937Sjkim---------------------------------------- 4822151937Sjkim26 May 2005. Summary of changes for version 20050526: 4823151937Sjkim 4824151937Sjkim1) ACPI CA Core Subsystem: 4825151937Sjkim 4826193267SjkimImplemented support to execute Type 1 and Type 2 AML opcodes appearing at 4827193267Sjkimthe module level (not within a control method.) These opcodes are executed 4828193267Sjkimexactly once at the time the table is loaded. This type of code was legal up 4829193267Sjkimuntil the release of ACPI 2.0B (2002) and is now supported within ACPI CA in 4830193267Sjkimorder to provide backwards compatibility with earlier BIOS implementations. 4831193267SjkimThis eliminates the "Encountered executable code at module level" warning 4832193267Sjkimthat was previously generated upon detection of such code. 4833151937Sjkim 4834193267SjkimFixed a problem in the interpreter where an AE_NOT_FOUND exception could 4835193267Sjkiminadvertently be generated during the lookup of namespace objects in the 4836193267Sjkimsecond pass parse of ACPI tables and control methods. It appears that this 4837193267Sjkimproblem could occur during the resolution of forward references to namespace 4838193267Sjkimobjects. 4839151937Sjkim 4840193267SjkimAdded the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function, 4841193267Sjkimcorresponding to the same #ifdef in the AcpiUtAcquireMutex function. This 4842193267Sjkimallows the deadlock detection debug code to be compiled out in the normal 4843193267Sjkimcase, improving mutex performance (and overall subsystem performance) 4844193267Sjkimconsiderably. 4845151937Sjkim 4846193267SjkimImplemented a handful of miscellaneous fixes for possible memory leaks on 4847193267Sjkimerror conditions and error handling control paths. These fixes were 4848193267Sjkimsuggested by FreeBSD and the Coverity Prevent source code analysis tool. 4849151937Sjkim 4850193267SjkimAdded a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c) 4851193267Sjkimto prevent a fault in this error case. 4852151937Sjkim 4853193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4854193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4855193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4856193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4857193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4858193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4859193267Sjkimthe compiler options used during generation. 4860151937Sjkim 4861151937Sjkim Previous Release: 4862151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4863151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4864151937Sjkim Current Release: 4865151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 4866151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4867151937Sjkim 4868151937Sjkim 4869151937Sjkim2) iASL Compiler/Disassembler: 4870151937Sjkim 4871193267SjkimImplemented support to allow Type 1 and Type 2 ASL operators to appear at 4872193267Sjkimthe module level (not within a control method.) These operators will be 4873193267Sjkimexecuted once at the time the table is loaded. This type of code was legal 4874193267Sjkimup until the release of ACPI 2.0B (2002) and is now supported by the iASL 4875193267Sjkimcompiler in order to provide backwards compatibility with earlier BIOS ASL 4876193267Sjkimcode. 4877151937Sjkim 4878193267SjkimThe ACPI integer width (specified via the table revision ID or the -r 4879193267Sjkimoverride, 32 or 64 bits) is now used internally during compile-time constant 4880193267Sjkimfolding to ensure that constants are truncated to 32 bits if necessary. 4881193267SjkimPreviously, the revision ID value was only emitted in the AML table header. 4882151937Sjkim 4883193267SjkimAn error message is now generated for the Mutex and Method operators if the 4884193267SjkimSyncLevel parameter is outside the legal range of 0 through 15. 4885151937Sjkim 4886193267SjkimFixed a problem with the Method operator ParameterTypes list handling (ACPI 4887193267Sjkim3.0). Previously, more than 2 types or 2 arguments generated a syntax error. 4888193267SjkimThe actual underlying implementation of method argument typechecking is 4889193267Sjkimstill under development, however. 4890151937Sjkim 4891151937Sjkim---------------------------------------- 4892151937Sjkim13 May 2005. Summary of changes for version 20050513: 4893151937Sjkim 4894151937Sjkim1) ACPI CA Core Subsystem: 4895151937Sjkim 4896193267SjkimImplemented support for PCI Express root bridges -- added support for device 4897193267SjkimPNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup. 4898151937Sjkim 4899193267SjkimThe interpreter now automatically truncates incoming 64-bit constants to 32 4900193267Sjkimbits if currently executing out of a 32-bit ACPI table (Revision < 2). This 4901193267Sjkimalso affects the iASL compiler constant folding. (Note: as per below, the 4902193267SjkimiASL compiler no longer allows 64-bit constants within 32-bit tables.) 4903151937Sjkim 4904193267SjkimFixed a problem where string and buffer objects with "static" pointers 4905193267Sjkim(pointers to initialization data within an ACPI table) were not handled 4906193267Sjkimconsistently. The internal object copy operation now always copies the data 4907193267Sjkimto a newly allocated buffer, regardless of whether the source object is 4908193267Sjkimstatic or not. 4909151937Sjkim 4910193267SjkimFixed a problem with the FromBCD operator where an implicit result 4911193267Sjkimconversion was improperly performed while storing the result to the target 4912193267Sjkimoperand. Since this is an "explicit conversion" operator, the implicit 4913193267Sjkimconversion should never be performed on the output. 4914151937Sjkim 4915193267SjkimFixed a problem with the CopyObject operator where a copy to an existing 4916193267Sjkimnamed object did not always completely overwrite the existing object stored 4917193267Sjkimat name. Specifically, a buffer-to-buffer copy did not delete the existing 4918193267Sjkimbuffer. 4919151937Sjkim 4920193267SjkimReplaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and 4921193267Sjkimstructs for consistency. 4922151937Sjkim 4923193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4924193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4925193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4926193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4927193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4928193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4929193267Sjkimthe compiler options used during generation. 4930151937Sjkim 4931151937Sjkim Previous Release: 4932151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4933151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4934151937Sjkim Current Release: (Same sizes) 4935151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4936151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4937151937Sjkim 4938151937Sjkim 4939151937Sjkim2) iASL Compiler/Disassembler: 4940151937Sjkim 4941193267SjkimThe compiler now emits a warning if an attempt is made to generate a 64-bit 4942193267Sjkiminteger constant from within a 32-bit ACPI table (Revision < 2). The integer 4943193267Sjkimis truncated to 32 bits. 4944151937Sjkim 4945193267SjkimFixed a problem with large package objects: if the static length of the 4946193267Sjkimpackage is greater than 255, the "variable length package" opcode is 4947193267Sjkimemitted. Previously, this caused an error. This requires an update to the 4948193267SjkimACPI spec, since it currently (incorrectly) states that packages larger than 4949193267Sjkim255 elements are not allowed. 4950151937Sjkim 4951193267SjkimThe disassembler now correctly handles variable length packages and packages 4952193267Sjkimlarger than 255 elements. 4953151937Sjkim 4954151937Sjkim---------------------------------------- 4955151937Sjkim08 April 2005. Summary of changes for version 20050408: 4956151937Sjkim 4957151937Sjkim1) ACPI CA Core Subsystem: 4958151937Sjkim 4959193267SjkimFixed three cases in the interpreter where an "index" argument to an ASL 4960193267Sjkimfunction was still (internally) 32 bits instead of the required 64 bits. 4961193267SjkimThis was the Index argument to the Index, Mid, and Match operators. 4962151937Sjkim 4963193267SjkimThe "strupr" function is now permanently local (AcpiUtStrupr), since this is 4964193267Sjkimnot a POSIX-defined function and not present in most kernel-level C 4965193267Sjkimlibraries. All references to the C library strupr function have been removed 4966193267Sjkimfrom the headers. 4967151937Sjkim 4968193267SjkimCompleted the deployment of static functions/prototypes. All prototypes with 4969193267Sjkimthe static attribute have been moved from the headers to the owning C file. 4970151937Sjkim 4971193267SjkimImplemented an extract option (-e) for the AcpiBin utility (AML binary 4972193267Sjkimutility). This option allows the utility to extract individual ACPI tables 4973193267Sjkimfrom the output of AcpiDmp. It provides the same functionality of the 4974193267Sjkimacpixtract.pl perl script without the worry of setting the correct perl 4975193267Sjkimoptions. AcpiBin runs on Windows and has not yet been generated/validated in 4976193267Sjkimthe Linux/Unix environment (but should be soon). 4977193267Sjkim 4978193267SjkimUpdated and fixed the table dump option for AcpiBin (-d). This option 4979193267Sjkimconverts a single ACPI table to a hex/ascii file, similar to the output of 4980193267SjkimAcpiDmp. 4981151937Sjkim 4982193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4983193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4984193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4985193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4986193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4987193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4988193267Sjkimthe compiler options used during generation. 4989151937Sjkim 4990151937Sjkim Previous Release: 4991151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4992151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4993151937Sjkim Current Release: 4994151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4995151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4996151937Sjkim 4997151937Sjkim 4998151937Sjkim2) iASL Compiler/Disassembler: 4999151937Sjkim 5000193267SjkimDisassembler fix: Added a check to ensure that the table length found in the 5001193267SjkimACPI table header within the input file is not longer than the actual input 5002193267Sjkimfile size. This indicates some kind of file or table corruption. 5003151937Sjkim 5004151937Sjkim---------------------------------------- 5005151937Sjkim29 March 2005. Summary of changes for version 20050329: 5006151937Sjkim 5007151937Sjkim1) ACPI CA Core Subsystem: 5008151937Sjkim 5009193267SjkimAn error is now generated if an attempt is made to create a Buffer Field of 5010193267Sjkimlength zero (A CreateField with a length operand of zero.) 5011151937Sjkim 5012193267SjkimThe interpreter now issues a warning whenever executable code at the module 5013193267Sjkimlevel is detected during ACPI table load. This will give some idea of the 5014193267Sjkimprevalence of this type of code. 5015151937Sjkim 5016193267SjkimImplemented support for references to named objects (other than control 5017193267Sjkimmethods) within package objects. 5018151937Sjkim 5019193267SjkimEnhanced package object output for the debug object. Package objects are now 5020193267Sjkimcompletely dumped, showing all elements. 5021151937Sjkim 5022193267SjkimEnhanced miscellaneous object output for the debug object. Any object can 5023193267Sjkimnow be written to the debug object (for example, a device object can be 5024193267Sjkimwritten, and the type of the object will be displayed.) 5025151937Sjkim 5026193267SjkimThe "static" qualifier has been added to all local functions across both the 5027193267Sjkimcore subsystem and the iASL compiler. 5028151937Sjkim 5029193267SjkimThe number of "long" lines (> 80 chars) within the source has been 5030193267Sjkimsignificantly reduced, by about 1/3. 5031151937Sjkim 5032193267SjkimCleaned up all header files to ensure that all CA/iASL functions are 5033193267Sjkimprototyped (even static functions) and the formatting is consistent. 5034151937Sjkim 5035151937SjkimTwo new header files have been added, acopcode.h and acnames.h. 5036151937Sjkim 5037151937SjkimRemoved several obsolete functions that were no longer used. 5038151937Sjkim 5039193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5040193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5041193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5042193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5043193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5044193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5045193267Sjkimthe compiler options used during generation. 5046151937Sjkim 5047151937Sjkim Previous Release: 5048151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5049151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 5050151937Sjkim Current Release: 5051151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 5052151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 5053151937Sjkim 5054151937Sjkim 5055167802Sjkim 5056151937Sjkim2) iASL Compiler/Disassembler: 5057151937Sjkim 5058193267SjkimFixed a problem with the resource descriptor generation/support. For the 5059193267SjkimResourceSourceIndex and the ResourceSource fields, both must be present, or 5060193267Sjkimboth must be not present - can't have one without the other. 5061151937Sjkim 5062193267SjkimThe compiler now returns non-zero from the main procedure if any errors have 5063193267Sjkimoccurred during the compilation. 5064151937Sjkim 5065151937Sjkim 5066151937Sjkim---------------------------------------- 5067151937Sjkim09 March 2005. Summary of changes for version 20050309: 5068151937Sjkim 5069151937Sjkim1) ACPI CA Core Subsystem: 5070151937Sjkim 5071193267SjkimThe string-to-buffer implicit conversion code has been modified again after 5072193267Sjkima change to the ACPI specification. In order to match the behavior of the 5073193267Sjkimother major ACPI implementation, the target buffer is no longer truncated if 5074193267Sjkimthe source string is smaller than an existing target buffer. This change 5075193267Sjkimrequires an update to the ACPI spec, and should eliminate the recent 5076151937SjkimAE_AML_BUFFER_LIMIT issues. 5077151937Sjkim 5078193267SjkimThe "implicit return" support was rewritten to a new algorithm that solves 5079193267Sjkimthe general case. Rather than attempt to determine when a method is about to 5080193267Sjkimexit, the result of every ASL operator is saved momentarily until the very 5081193267Sjkimnext ASL operator is executed. Therefore, no matter how the method exits, 5082193267Sjkimthere will always be a saved implicit return value. This feature is only 5083193267Sjkimenabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate 5084193267SjkimAE_AML_NO_RETURN_VALUE errors when enabled. 5085151937Sjkim 5086193267SjkimImplemented implicit conversion support for the predicate (operand) of the 5087193267SjkimIf, Else, and While operators. String and Buffer arguments are automatically 5088193267Sjkimconverted to Integers. 5089151937Sjkim 5090193267SjkimChanged the string-to-integer conversion behavior to match the new ACPI 5091193267Sjkimerrata: "If no integer object exists, a new integer is created. The ASCII 5092193267Sjkimstring is interpreted as a hexadecimal constant. Each string character is 5093193267Sjkiminterpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting 5094193267Sjkimwith the first character as the most significant digit, and ending with the 5095193267Sjkimfirst non-hexadecimal character or end-of-string." This means that the first 5096193267Sjkimnon-hex character terminates the conversion and this is the code that was 5097193267Sjkimchanged. 5098151937Sjkim 5099193267SjkimFixed a problem where the ObjectType operator would fail (fault) when used 5100193267Sjkimon an Index of a Package which pointed to a null package element. The 5101193267Sjkimoperator now properly returns zero (Uninitialized) in this case. 5102151937Sjkim 5103193267SjkimFixed a problem where the While operator used excessive memory by not 5104193267Sjkimproperly popping the result stack during execution. There was no memory leak 5105193267Sjkimafter execution, however. (Code provided by Valery Podrezov.) 5106151937Sjkim 5107193267SjkimFixed a problem where references to control methods within Package objects 5108193267Sjkimcaused the method to be invoked, instead of producing a reference object 5109193267Sjkimpointing to the method. 5110151937Sjkim 5111193267SjkimRestructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to 5112193267Sjkimimprove performance and reduce code size. (Code provided by Alexey 5113193267SjkimStarikovskiy.) 5114151937Sjkim 5115193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5116193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5117193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5118193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5119193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5120193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5121193267Sjkimthe compiler options used during generation. 5122151937Sjkim 5123151937Sjkim Previous Release: 5124151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5125151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 5126151937Sjkim Current Release: 5127151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5128151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 5129151937Sjkim 5130151937Sjkim 5131151937Sjkim2) iASL Compiler/Disassembler: 5132151937Sjkim 5133193267SjkimFixed a problem with the Return operator with no arguments. Since the AML 5134193267Sjkimgrammar for the byte encoding requires an operand for the Return opcode, the 5135193267Sjkimcompiler now emits a Return(Zero) for this case. An ACPI specification 5136193267Sjkimupdate has been written for this case. 5137151937Sjkim 5138193267SjkimFor tables other than the DSDT, namepath optimization is automatically 5139193267Sjkimdisabled. This is because SSDTs can be loaded anywhere in the namespace, the 5140193267Sjkimcompiler has no knowledge of where, and thus cannot optimize namepaths. 5141151937Sjkim 5142193267SjkimAdded "ProcessorObj" to the ObjectTypeKeyword list. This object type was 5143193267Sjkiminadvertently omitted from the ACPI specification, and will require an 5144193267Sjkimupdate to the spec. 5145151937Sjkim 5146193267SjkimThe source file scan for ASCII characters is now optional (-a). This change 5147193267Sjkimwas made because some vendors place non-ascii characters within comments. 5148193267SjkimHowever, the scan is simply a brute-force byte compare to ensure all 5149193267Sjkimcharacters in the file are in the range 0x00 to 0x7F. 5150151937Sjkim 5151193267SjkimFixed a problem with the CondRefOf operator where the compiler was 5152193267Sjkiminappropriately checking for the existence of the target. Since the point of 5153193267Sjkimthe operator is to check for the existence of the target at run-time, the 5154193267Sjkimcompiler no longer checks for the target existence. 5155151937Sjkim 5156193267SjkimFixed a problem where errors generated from the internal AML interpreter 5157193267Sjkimduring constant folding were not handled properly, causing a fault. 5158151937Sjkim 5159193267SjkimFixed a problem with overly aggressive range checking for the Stall 5160193267Sjkimoperator. The valid range (max 255) is now only checked if the operand is of 5161193267Sjkimtype Integer. All other operand types cannot be statically checked. 5162151937Sjkim 5163193267SjkimFixed a problem where control method references within the RefOf, DeRefOf, 5164193267Sjkimand ObjectType operators were not treated properly. They are now treated as 5165193267Sjkimactual references, not method invocations. 5166151937Sjkim 5167193267SjkimFixed and enhanced the "list namespace" option (-ln). This option was broken 5168193267Sjkima number of releases ago. 5169151937Sjkim 5170193267SjkimImproved error handling for the Field, IndexField, and BankField operators. 5171193267SjkimThe compiler now cleanly reports and recovers from errors in the field 5172193267Sjkimcomponent (FieldUnit) list. 5173151937Sjkim 5174193267SjkimFixed a disassembler problem where the optional ResourceDescriptor fields 5175193267SjkimTRS and TTP were not always handled correctly. 5176151937Sjkim 5177151937SjkimDisassembler - Comments in output now use "//" instead of "/*" 5178151937Sjkim 5179151937Sjkim---------------------------------------- 5180151937Sjkim28 February 2005. Summary of changes for version 20050228: 5181151937Sjkim 5182151937Sjkim1) ACPI CA Core Subsystem: 5183151937Sjkim 5184193267SjkimFixed a problem where the result of an Index() operator (an object 5185193267Sjkimreference) must increment the reference count on the target object for the 5186193267Sjkimlife of the object reference. 5187151937Sjkim 5188193267SjkimImplemented AML Interpreter and Debugger support for the new ACPI 3.0 5189193267SjkimExtended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace 5190193267Sjkimresource descriptors. 5191151937Sjkim 5192193267SjkimImplemented support in the _OSI method for the ACPI 3.0 "Extended Address 5193193267SjkimSpace Descriptor" string, indicating interpreter support for the descriptors 5194193267Sjkimabove. 5195151937Sjkim 5196151937SjkimImplemented header support for the new ACPI 3.0 FADT flag bits. 5197151937Sjkim 5198193267SjkimImplemented header support for the new ACPI 3.0 PCI Express bits for the PM1 5199193267Sjkimstatus/enable registers. 5200151937Sjkim 5201193267SjkimUpdated header support for the MADT processor local Apic struct and MADT 5202193267Sjkimplatform interrupt source struct for new ACPI 3.0 fields. 5203151937Sjkim 5204151937SjkimImplemented header support for the SRAT and SLIT ACPI tables. 5205151937Sjkim 5206193267SjkimImplemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag 5207193267Sjkimat runtime. 5208151937Sjkim 5209193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5210193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5211193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5212193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5213193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5214193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5215193267Sjkimthe compiler options used during generation. 5216151937Sjkim 5217151937Sjkim Previous Release: 5218151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 5219151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 5220151937Sjkim Current Release: 5221151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5222151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 5223151937Sjkim 5224151937Sjkim 5225151937Sjkim2) iASL Compiler/Disassembler: 5226151937Sjkim 5227193267SjkimFixed a problem with the internal 64-bit String-to-integer conversion with 5228193267Sjkimstrings less than two characters long. 5229151937Sjkim 5230193267SjkimFixed a problem with constant folding where the result of the Index() 5231193267Sjkimoperator can not be considered a constant. This means that Index() cannot be 5232193267Sjkima type3 opcode and this will require an update to the ACPI specification. 5233151937Sjkim 5234193267SjkimDisassembler: Implemented support for the TTP, MTP, and TRS resource 5235193267Sjkimdescriptor fields. These fields were inadvertently ignored and not output in 5236193267Sjkimthe disassembly of the resource descriptor. 5237151937Sjkim 5238151937Sjkim 5239151937Sjkim ---------------------------------------- 5240151937Sjkim11 February 2005. Summary of changes for version 20050211: 5241151937Sjkim 5242151937Sjkim1) ACPI CA Core Subsystem: 5243151937Sjkim 5244193267SjkimImplemented ACPI 3.0 support for implicit conversion within the Match() 5245193267Sjkimoperator. MatchObjects can now be of type integer, buffer, or string instead 5246193267Sjkimof just type integer. Package elements are implicitly converted to the type 5247193267Sjkimof the MatchObject. This change aligns the behavior of Match() with the 5248193267Sjkimbehavior of the other logical operators (LLess(), etc.) It also requires an 5249193267Sjkimerrata change to the ACPI specification as this support was intended for 5250193267SjkimACPI 3.0, but was inadvertently omitted. 5251151937Sjkim 5252193267SjkimFixed a problem with the internal implicit "to buffer" conversion. Strings 5253193267Sjkimthat are converted to buffers will cause buffer truncation if the string is 5254193267Sjkimsmaller than the target buffer. Integers that are converted to buffers will 5255193267Sjkimnot cause buffer truncation, only zero extension (both as per the ACPI 5256193267Sjkimspec.) The problem was introduced when code was added to truncate the 5257193267Sjkimbuffer, but this should not be performed in all cases, only the string case. 5258151937Sjkim 5259193267SjkimFixed a problem with the Buffer and Package operators where the interpreter 5260193267Sjkimwould get confused if two such operators were used as operands to an ASL 5261193267Sjkimoperator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result 5262193267Sjkimstack was not being popped after the execution of these operators, resulting 5263193267Sjkimin an AE_NO_RETURN_VALUE exception. 5264151937Sjkim 5265193267SjkimFixed a problem with constructs of the form Store(Index(...),...). The 5266193267Sjkimreference object returned from Index was inadvertently resolved to an actual 5267193267Sjkimvalue. This problem was introduced in version 20050114 when the behavior of 5268193267SjkimStore() was modified to restrict the object types that can be used as the 5269151937Sjkimsource operand (to match the ACPI specification.) 5270151937Sjkim 5271193267SjkimReduced excessive stack use within the AcpiGetObjectInfo procedure. 5272151937Sjkim 5273193267SjkimAdded a fix to aclinux.h to allow generation of AcpiExec on Linux. 5274151937Sjkim 5275193267SjkimUpdated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct. 5276151937Sjkim 5277193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5278193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5279193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5280193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5281193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5282193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5283193267Sjkimthe compiler options used during generation. 5284151937Sjkim 5285151937Sjkim Previous Release: 5286151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 5287151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 5288151937Sjkim Current Release: 5289151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 5290151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 5291151937Sjkim 5292151937Sjkim 5293151937Sjkim2) iASL Compiler/Disassembler: 5294151937Sjkim 5295193267SjkimFixed a code generation problem in the constant folding optimization code 5296193267Sjkimwhere incorrect code was generated if a constant was reduced to a buffer 5297193267Sjkimobject (i.e., a reduced type 5 opcode.) 5298151937Sjkim 5299193267SjkimFixed a typechecking problem for the ToBuffer operator. Caused by an 5300193267Sjkimincorrect return type in the internal opcode information table. 5301151937Sjkim 5302151937Sjkim---------------------------------------- 5303151937Sjkim25 January 2005. Summary of changes for version 20050125: 5304151937Sjkim 5305151937Sjkim1) ACPI CA Core Subsystem: 5306151937Sjkim 5307193267SjkimFixed a recently introduced problem with the Global Lock where the 5308193267Sjkimunderlying semaphore was not created. This problem was introduced in 5309193267Sjkimversion 20050114, and caused an AE_AML_NO_OPERAND exception during an 5310193267SjkimAcquire() operation on _GL. 5311151937Sjkim 5312193267SjkimThe local object cache is now optional, and is disabled by default. Both 5313193267SjkimAcpiExec and the iASL compiler enable the cache because they run in user 5314193267Sjkimmode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE 5315193267Sjkimto enable the local cache. 5316151937Sjkim 5317193267SjkimFixed an issue in the internal function AcpiUtEvaluateObject concerning the 5318193267Sjkimoptional "implicit return" support where an error was returned if no return 5319193267Sjkimobject was expected, but one was implicitly returned. AE_OK is now returned 5320193267Sjkimin this case and the implicitly returned object is deleted. 5321193267SjkimAcpiUtEvaluateObject is only occasionally used, and only to execute reserved 5322193267Sjkimmethods such as _STA and _INI where the return type is known up front. 5323151937Sjkim 5324193267SjkimFixed a few issues with the internal convert-to-integer code. It now returns 5325193267Sjkiman error if an attempt is made to convert a null string, a string of only 5326193267Sjkimblanks/tabs, or a zero-length buffer. This affects both implicit conversion 5327193267Sjkimand explicit conversion via the ToInteger() operator. 5328151937Sjkim 5329193267SjkimThe internal debug code in AcpiUtAcquireMutex has been commented out. It is 5330193267Sjkimnot needed for normal operation and should increase the performance of the 5331193267Sjkimentire subsystem. The code remains in case it is needed for debug purposes 5332193267Sjkimagain. 5333151937Sjkim 5334193267SjkimThe AcpiExec source and makefile are included in the Unix/Linux package for 5335193267Sjkimthe first time. 5336151937Sjkim 5337193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5338193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5339193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5340193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5341193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5342193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5343193267Sjkimthe compiler options used during generation. 5344151937Sjkim 5345151937Sjkim Previous Release: 5346151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 5347151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 5348151937Sjkim Current Release: 5349151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 5350151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 5351151937Sjkim 5352151937Sjkim2) iASL Compiler/Disassembler: 5353151937Sjkim 5354193267SjkimSwitch/Case support: A warning is now issued if the type of the Switch value 5355193267Sjkimcannot be determined at compile time. For example, Switch(Arg0) will 5356193267Sjkimgenerate the warning, and the type is assumed to be an integer. As per the 5357193267SjkimACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the 5358193267Sjkimwarning. 5359151937Sjkim 5360193267SjkimSwitch/Case support: Implemented support for buffer and string objects as 5361193267Sjkimthe switch value. This is an ACPI 3.0 feature, now that LEqual supports 5362193267Sjkimbuffers and strings. 5363151937Sjkim 5364193267SjkimSwitch/Case support: The emitted code for the LEqual() comparisons now uses 5365193267Sjkimthe switch value as the first operand, not the second. The case value is now 5366193267Sjkimthe second operand, and this allows the case value to be implicitly 5367193267Sjkimconverted to the type of the switch value, not the other way around. 5368151937Sjkim 5369193267SjkimSwitch/Case support: Temporary variables are now emitted immediately within 5370193267Sjkimthe control method, not at the global level. This means that there are now 5371193267Sjkim36 temps available per-method, not 36 temps per-module as was the case with 5372193267Sjkimthe earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.) 5373151937Sjkim 5374151937Sjkim---------------------------------------- 5375151937Sjkim14 January 2005. Summary of changes for version 20050114: 5376151937Sjkim 5377193267SjkimAdded 2005 copyright to all module headers. This affects every module in 5378193267Sjkimthe core subsystem, iASL compiler, and the utilities. 5379151937Sjkim 5380151937Sjkim1) ACPI CA Core Subsystem: 5381151937Sjkim 5382193267SjkimFixed an issue with the String-to-Buffer conversion code where the string 5383193267Sjkimnull terminator was not included in the buffer after conversion, but there 5384193267Sjkimis existing ASL that assumes the string null terminator is included. This is 5385193267Sjkimthe root of the ACPI_AML_BUFFER_LIMIT regression. This problem was 5386193267Sjkimintroduced in the previous version when the code was updated to correctly 5387193267Sjkimset the converted buffer size as per the ACPI specification. The ACPI spec 5388193267Sjkimis ambiguous and will be updated to specify that the null terminator must be 5389193267Sjkimincluded in the converted buffer. This also affects the ToBuffer() ASL 5390193267Sjkimoperator. 5391151937Sjkim 5392193267SjkimFixed a problem with the Mid() ASL/AML operator where it did not work 5393193267Sjkimcorrectly on Buffer objects. Newly created sub-buffers were not being marked 5394193267Sjkimas initialized. 5395151937Sjkim 5396167802Sjkim 5397193267SjkimFixed a problem in AcpiTbFindTable where incorrect string compares were 5398193267Sjkimperformed on the OemId and OemTableId table header fields. These fields are 5399193267Sjkimnot null terminated, so strncmp is now used instead of strcmp. 5400151937Sjkim 5401193267SjkimImplemented a restriction on the Store() ASL/AML operator to align the 5402193267Sjkimbehavior with the ACPI specification. Previously, any object could be used 5403193267Sjkimas the source operand. Now, the only objects that may be used are Integers, 5404193267SjkimBuffers, Strings, Packages, Object References, and DDB Handles. If 5405193267Sjkimnecessary, the original behavior can be restored by enabling the 5406151937SjkimEnableInterpreterSlack flag. 5407151937Sjkim 5408193267SjkimEnhanced the optional "implicit return" support to allow an implicit return 5409193267Sjkimvalue from methods that are invoked externally via the AcpiEvaluateObject 5410193267Sjkiminterface. This enables implicit returns from the _STA and _INI methods, 5411193267Sjkimfor example. 5412151937Sjkim 5413193267SjkimChanged the Revision() ASL/AML operator to return the current version of the 5414193267SjkimAML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned 5415193267Sjkimthe supported ACPI version (This is the function of the _REV method). 5416151937Sjkim 5417193267SjkimUpdated the _REV predefined method to return the currently supported version 5418193267Sjkimof ACPI, now 3. 5419151937Sjkim 5420151937SjkimImplemented batch mode option for the AcpiExec utility (-b). 5421151937Sjkim 5422193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5423193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5424193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5425193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5426193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5427193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5428193267Sjkimthe compiler options used during generation. 5429151937Sjkim 5430151937Sjkim Previous Release: 5431151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5432151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5433151937Sjkim Current Release: 5434151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 5435151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 5436151937Sjkim 5437151937Sjkim---------------------------------------- 5438151937Sjkim10 December 2004. Summary of changes for version 20041210: 5439151937Sjkim 5440193267SjkimACPI 3.0 support is nearing completion in both the iASL compiler and the 5441193267SjkimACPI CA core subsystem. 5442151937Sjkim 5443151937Sjkim1) ACPI CA Core Subsystem: 5444151937Sjkim 5445193267SjkimFixed a problem in the ToDecimalString operator where the resulting string 5446193267Sjkimlength was incorrectly calculated. The length is now calculated exactly, 5447193267Sjkimeliminating incorrect AE_STRING_LIMIT exceptions. 5448151937Sjkim 5449193267SjkimFixed a problem in the ToHexString operator to allow a maximum 200 character 5450193267Sjkimstring to be produced. 5451151937Sjkim 5452193267SjkimFixed a problem in the internal string-to-buffer and buffer-to-buffer copy 5453193267Sjkimroutine where the length of the resulting buffer was not truncated to the 5454193267Sjkimnew size (if the target buffer already existed). 5455151937Sjkim 5456193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5457193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5458193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5459193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5460193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5461193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5462193267Sjkimthe compiler options used during generation. 5463151937Sjkim 5464151937Sjkim Previous Release: 5465151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5466151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5467151937Sjkim Current Release: 5468151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5469151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5470151937Sjkim 5471151937Sjkim 5472151937Sjkim2) iASL Compiler/Disassembler: 5473151937Sjkim 5474193267SjkimImplemented the new ACPI 3.0 resource template macros - DWordSpace, 5475193267SjkimExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace. 5476193267SjkimIncludes support in the disassembler. 5477151937Sjkim 5478193267SjkimImplemented support for the new (ACPI 3.0) parameter to the Register macro, 5479193267SjkimAccessSize. 5480151937Sjkim 5481193267SjkimFixed a problem where the _HE resource name for the Interrupt macro was 5482193267Sjkimreferencing bit 0 instead of bit 1. 5483151937Sjkim 5484193267SjkimImplemented check for maximum 255 interrupts in the Interrupt macro. 5485151937Sjkim 5486193267SjkimFixed a problem with the predefined resource descriptor names where 5487193267Sjkimincorrect AML code was generated if the offset within the resource buffer 5488193267Sjkimwas 0 or 1. The optimizer shortened the AML code to a single byte opcode 5489193267Sjkimbut did not update the surrounding package lengths. 5490151937Sjkim 5491193267SjkimChanges to the Dma macro: All channels within the channel list must be in 5492193267Sjkimthe range 0-7. Maximum 8 channels can be specified. BusMaster operand is 5493193267Sjkimoptional (default is BusMaster). 5494151937Sjkim 5495193267SjkimImplemented check for maximum 7 data bytes for the VendorShort macro. 5496151937Sjkim 5497193267SjkimThe ReadWrite parameter is now optional for the Memory32 and similar macros. 5498151937Sjkim 5499151937Sjkim---------------------------------------- 5500151937Sjkim03 December 2004. Summary of changes for version 20041203: 5501151937Sjkim 5502151937Sjkim1) ACPI CA Core Subsystem: 5503151937Sjkim 5504193267SjkimThe low-level field insertion/extraction code (exfldio) has been completely 5505193267Sjkimrewritten to eliminate unnecessary complexity, bugs, and boundary 5506193267Sjkimconditions. 5507151937Sjkim 5508193267SjkimFixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString 5509193267Sjkimoperators where the input operand could be inadvertently deleted if no 5510193267Sjkimconversion was necessary (e.g., if the input to ToInteger was an Integer 5511193267Sjkimobject.) 5512151937Sjkim 5513193267SjkimFixed a problem with the ToDecimalString and ToHexString where an incorrect 5514193267Sjkimexception code was returned if the resulting string would be > 200 chars. 5515193267SjkimAE_STRING_LIMIT is now returned. 5516151937Sjkim 5517193267SjkimFixed a problem with the Concatenate operator where AE_OK was always 5518193267Sjkimreturned, even if the operation failed. 5519151937Sjkim 5520193267SjkimFixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128 5521193267Sjkimsemaphores to be allocated. 5522151937Sjkim 5523193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5524193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5525193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5526193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5527193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5528193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5529193267Sjkimthe compiler options used during generation. 5530151937Sjkim 5531151937Sjkim Previous Release: 5532151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5533151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5534151937Sjkim Current Release: 5535151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5536151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5537151937Sjkim 5538151937Sjkim 5539151937Sjkim2) iASL Compiler/Disassembler: 5540151937Sjkim 5541193267SjkimFixed typechecking for the ObjectType and SizeOf operators. Problem was 5542193267Sjkimrecently introduced in 20041119. 5543151937Sjkim 5544193267SjkimFixed a problem with the ToUUID macro where the upper nybble of each buffer 5545193267Sjkimbyte was inadvertently set to zero. 5546151937Sjkim 5547151937Sjkim---------------------------------------- 5548138287Smarks19 November 2004. Summary of changes for version 20041119: 5549138287Smarks 5550138287Smarks1) ACPI CA Core Subsystem: 5551138287Smarks 5552193267SjkimFixed a problem in the internal ConvertToInteger routine where new integers 5553193267Sjkimwere not truncated to 32 bits for 32-bit ACPI tables. This routine converts 5554193267Sjkimbuffers and strings to integers. 5555138287Smarks 5556193267SjkimImplemented support to store a value to an Index() on a String object. This 5557193267Sjkimis an ACPI 2.0 feature that had not yet been implemented. 5558138287Smarks 5559193267SjkimImplemented new behavior for storing objects to individual package elements 5560193267Sjkim(via the Index() operator). The previous behavior was to invoke the implicit 5561193267Sjkimconversion rules if an object was already present at the index. The new 5562193267Sjkimbehavior is to simply delete any existing object and directly store the new 5563193267Sjkimobject. Although the ACPI specification seems unclear on this subject, other 5564193267SjkimACPI implementations behave in this manner. (This is the root of the 5565193267SjkimAE_BAD_HEX_CONSTANT issue.) 5566138287Smarks 5567193267SjkimModified the RSDP memory scan mechanism to support the extended checksum for 5568193267SjkimACPI 2.0 (and above) RSDPs. Note that the search continues until a valid 5569193267SjkimRSDP signature is found with a valid checksum. 5570138287Smarks 5571193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5572193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5573193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5574193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5575193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5576193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5577193267Sjkimthe compiler options used during generation. 5578138287Smarks 5579151937Sjkim Previous Release: 5580151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5581151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5582151937Sjkim Current Release: 5583151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5584151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5585138287Smarks 5586138287Smarks 5587138287Smarks2) iASL Compiler/Disassembler: 5588138287Smarks 5589138287SmarksFixed a missing semicolon in the aslcompiler.y file. 5590138287Smarks 5591138287Smarks---------------------------------------- 5592138287Smarks05 November 2004. Summary of changes for version 20041105: 5593138287Smarks 5594138287Smarks1) ACPI CA Core Subsystem: 5595138287Smarks 5596193267SjkimImplemented support for FADT revision 2. This was an interim table (between 5597193267SjkimACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register. 5598138287Smarks 5599193267SjkimImplemented optional support to allow uninitialized LocalX and ArgX 5600193267Sjkimvariables in a control method. The variables are initialized to an Integer 5601193267Sjkimobject with a value of zero. This support is enabled by setting the 5602193267SjkimAcpiGbl_EnableInterpreterSlack flag to TRUE. 5603138287Smarks 5604193267SjkimImplemented support for Integer objects for the SizeOf operator. Either 4 5605193267Sjkimor 8 is returned, depending on the current integer size (32-bit or 64-bit, 5606193267Sjkimdepending on the parent table revision). 5607138287Smarks 5608193267SjkimFixed a problem in the implementation of the SizeOf and ObjectType operators 5609193267Sjkimwhere the operand was resolved to a value too early, causing incorrect 5610193267Sjkimreturn values for some objects. 5611138287Smarks 5612138287SmarksFixed some possible memory leaks during exceptional conditions. 5613138287Smarks 5614193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5615193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5616193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5617193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5618193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5619193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5620193267Sjkimthe compiler options used during generation. 5621138287Smarks 5622138287Smarks Previous Release: 5623138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5624138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5625138287Smarks Current Release: 5626138287Smarks Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5627138287Smarks Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5628138287Smarks 5629138287Smarks 5630138287Smarks2) iASL Compiler/Disassembler: 5631138287Smarks 5632138287SmarksImplemented support for all ACPI 3.0 reserved names and methods. 5633138287Smarks 5634193267SjkimImplemented all ACPI 3.0 grammar elements in the front-end, including 5635193267Sjkimsupport for semicolons. 5636138287Smarks 5637138287SmarksImplemented the ACPI 3.0 Function() and ToUUID() macros 5638138287Smarks 5639193267SjkimFixed a problem in the disassembler where a Scope() operator would not be 5640193267Sjkimemitted properly if the target of the scope was in another table. 5641138287Smarks 5642138287Smarks---------------------------------------- 5643138287Smarks15 October 2004. Summary of changes for version 20041015: 5644138287Smarks 5645193267SjkimNote: ACPI CA is currently undergoing an in-depth and complete formal 5646193267Sjkimevaluation to test/verify the following areas. Other suggestions are 5647193267Sjkimwelcome. This will result in an increase in the frequency of releases and 5648193267Sjkimthe number of bug fixes in the next few months. 5649138287Smarks - Functional tests for all ASL/AML operators 5650138287Smarks - All implicit/explicit type conversions 5651138287Smarks - Bit fields and operation regions 5652138287Smarks - 64-bit math support and 32-bit-only "truncated" math support 5653138287Smarks - Exceptional conditions, both compiler and interpreter 5654138287Smarks - Dynamic object deletion and memory leaks 5655138287Smarks - ACPI 3.0 support when implemented 5656138287Smarks - External interfaces to the ACPI subsystem 5657138287Smarks 5658138287Smarks 5659138287Smarks1) ACPI CA Core Subsystem: 5660138287Smarks 5661193267SjkimFixed two alignment issues on 64-bit platforms - within debug statements in 5662193267SjkimAcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address 5663193267Sjkimfield within the non-aligned ACPI generic address structure. 5664138287Smarks 5665193267SjkimFixed a problem in the Increment and Decrement operators where incorrect 5666193267Sjkimoperand resolution could result in the inadvertent modification of the 5667193267Sjkimoriginal integer when the integer is passed into another method as an 5668193267Sjkimargument and the arg is then incremented/decremented. 5669138287Smarks 5670193267SjkimFixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit 5671193267SjkimBCD number were truncated during conversion. 5672138287Smarks 5673193267SjkimFixed a problem in the ToDecimal operator where the length of the resulting 5674193267Sjkimstring could be set incorrectly too long if the input operand was a Buffer 5675193267Sjkimobject. 5676138287Smarks 5677193267SjkimFixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0) 5678193267Sjkimwithin a buffer would prematurely terminate a compare between buffer 5679193267Sjkimobjects. 5680138287Smarks 5681193267SjkimAdded a check for string overflow (>200 characters as per the ACPI 5682193267Sjkimspecification) during the Concatenate operator with two string operands. 5683138287Smarks 5684193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5685193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5686193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5687193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5688193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5689193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5690193267Sjkimthe compiler options used during generation. 5691138287Smarks 5692138287Smarks Previous Release: 5693138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5694138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5695138287Smarks Current Release: 5696138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5697138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5698138287Smarks 5699138287Smarks 5700167802Sjkim 5701138287Smarks2) iASL Compiler/Disassembler: 5702138287Smarks 5703193267SjkimAllow the use of the ObjectType operator on uninitialized Locals and Args 5704193267Sjkim(returns 0 as per the ACPI specification). 5705138287Smarks 5706193267SjkimFixed a problem where the compiler would fault if there was a syntax error 5707193267Sjkimin the FieldName of all of the various CreateXXXField operators. 5708138287Smarks 5709193267SjkimDisallow the use of lower case letters within the EISAID macro, as per the 5710193267SjkimACPI specification. All EISAID strings must be of the form "UUUNNNN" Where 5711193267SjkimU is an uppercase letter and N is a hex digit. 5712138287Smarks 5713138287Smarks 5714138287Smarks---------------------------------------- 5715138287Smarks06 October 2004. Summary of changes for version 20041006: 5716138287Smarks 5717138287Smarks1) ACPI CA Core Subsystem: 5718138287Smarks 5719193267SjkimImplemented support for the ACPI 3.0 Timer operator. This ASL function 5720193267Sjkimimplements a 64-bit timer with 100 nanosecond granularity. 5721138287Smarks 5722193267SjkimDefined a new OSL interface, AcpiOsGetTimer. This interface is used to 5723193267Sjkimimplement the ACPI 3.0 Timer operator. This allows the host OS to implement 5724193267Sjkimthe timer with the best clock available. Also, it keeps the core subsystem 5725193267Sjkimout of the clock handling business, since the host OS (usually) performs 5726193267Sjkimthis function. 5727138287Smarks 5728193267SjkimFixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write) 5729193267Sjkimfunctions use a 64-bit address which is part of the packed ACPI Generic 5730193267SjkimAddress Structure. Since the structure is non-aligned, the alignment macros 5731193267Sjkimare now used to extract the address to a local variable before use. 5732138287Smarks 5733193267SjkimFixed a problem where the ToInteger operator assumed all input strings were 5734193267Sjkimhexadecimal. The operator now handles both decimal strings and hex strings 5735193267Sjkim(prefixed with "0x"). 5736138287Smarks 5737193267SjkimFixed a problem where the string length in the string object created as a 5738193267Sjkimresult of the internal ConvertToString procedure could be incorrect. This 5739193267Sjkimpotentially affected all implicit conversions and also the ToDecimalString 5740193267Sjkimand ToHexString operators. 5741138287Smarks 5742193267SjkimFixed two problems in the ToString operator. If the length parameter was 5743193267Sjkimzero, an incorrect string object was created and the value of the input 5744193267Sjkimlength parameter was inadvertently changed from zero to Ones. 5745138287Smarks 5746193267SjkimFixed a problem where the optional ResourceSource string in the ExtendedIRQ 5747193267Sjkimresource macro was ignored. 5748138287Smarks 5749193267SjkimSimplified the interfaces to the internal division functions, reducing code 5750193267Sjkimsize and complexity. 5751138287Smarks 5752193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5753193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5754193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5755193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5756193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5757193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5758193267Sjkimthe compiler options used during generation. 5759138287Smarks 5760138287Smarks Previous Release: 5761138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5762138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5763138287Smarks Current Release: 5764138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5765138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5766138287Smarks 5767138287Smarks 5768138287Smarks2) iASL Compiler/Disassembler: 5769138287Smarks 5770138287SmarksImplemented support for the ACPI 3.0 Timer operator. 5771138287Smarks 5772193267SjkimFixed a problem where the Default() operator was inadvertently ignored in a 5773193267SjkimSwitch/Case block. This was a problem in the translation of the Switch 5774193267Sjkimstatement to If...Else pairs. 5775138287Smarks 5776193267SjkimAdded support to allow a standalone Return operator, with no parentheses (or 5777193267Sjkimoperands). 5778138287Smarks 5779193267SjkimFixed a problem with code generation for the ElseIf operator where the 5780193267Sjkimtranslated Else...If parse tree was improperly constructed leading to the 5781193267Sjkimloss of some code. 5782138287Smarks 5783138287Smarks---------------------------------------- 5784138287Smarks22 September 2004. Summary of changes for version 20040922: 5785138287Smarks 5786138287Smarks1) ACPI CA Core Subsystem: 5787138287Smarks 5788193267SjkimFixed a problem with the implementation of the LNot() operator where "Ones" 5789193267Sjkimwas not returned for the TRUE case. Changed the code to return Ones instead 5790193267Sjkimof (!Arg) which was usually 1. This change affects iASL constant folding for 5791193267Sjkimthis operator also. 5792138287Smarks 5793193267SjkimFixed a problem in AcpiUtInitializeBuffer where an existing buffer was not 5794193267Sjkiminitialized properly -- Now zero the entire buffer in this case where the 5795193267Sjkimbuffer already exists. 5796138287Smarks 5797193267SjkimChanged the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 5798193267SjkimMilliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all 5799193267Sjkimrelated code considerably. This will require changes/updates to all OS 5800193267Sjkiminterface layers (OSLs.) 5801138287Smarks 5802193267SjkimImplemented a new external interface, AcpiInstallExceptionHandler, to allow 5803193267Sjkima system exception handler to be installed. This handler is invoked upon any 5804193267Sjkimrun-time exception that occurs during control method execution. 5805138287Smarks 5806193267SjkimAdded support for the DSDT in AcpiTbFindTable. This allows the 5807138287SmarksDataTableRegion() operator to access the local copy of the DSDT. 5808138287Smarks 5809193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5810193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5811193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5812193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5813193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5814193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5815193267Sjkimthe compiler options used during generation. 5816138287Smarks 5817138287Smarks Previous Release: 5818138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5819138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5820138287Smarks Current Release: 5821138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5822138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5823138287Smarks 5824138287Smarks 5825138287Smarks2) iASL Compiler/Disassembler: 5826138287Smarks 5827193267SjkimFixed a problem with constant folding and the LNot operator. LNot was 5828193267Sjkimreturning 1 in the TRUE case, not Ones as per the ACPI specification. This 5829193267Sjkimcould result in the generation of an incorrect folded/reduced constant. 5830138287Smarks 5831193267SjkimEnd-Of-File is now allowed within a "//"-style comment. A parse error no 5832193267Sjkimlonger occurs if such a comment is at the very end of the input ASL source 5833193267Sjkimfile. 5834138287Smarks 5835193267SjkimImplemented the "-r" option to override the Revision in the table header. 5836193267SjkimThe initial use of this option will be to simplify the evaluation of the AML 5837193267Sjkiminterpreter by allowing a single ASL source module to be compiled for either 5838193267Sjkim32-bit or 64-bit integers. 5839138287Smarks 5840138287Smarks 5841138287Smarks---------------------------------------- 5842138287Smarks27 August 2004. Summary of changes for version 20040827: 5843138287Smarks 5844138287Smarks1) ACPI CA Core Subsystem: 5845138287Smarks 5846193267Sjkim- Implemented support for implicit object conversion in the non-numeric 5847193267Sjkimlogical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and 5848193267SjkimLNotEqual.) Any combination of Integers/Strings/Buffers may now be used; 5849193267Sjkimthe second operand is implicitly converted on the fly to match the type of 5850193267Sjkimthe first operand. For example: 5851138287Smarks 5852138287Smarks LEqual (Source1, Source2) 5853138287Smarks 5854193267SjkimSource1 and Source2 must each evaluate to an integer, a string, or a buffer. 5855193267SjkimThe data type of Source1 dictates the required type of Source2. Source2 is 5856193267Sjkimimplicitly converted if necessary to match the type of Source1. 5857138287Smarks 5858193267Sjkim- Updated and corrected the behavior of the string conversion support. The 5859193267Sjkimrules concerning conversion of buffers to strings (according to the ACPI 5860193267Sjkimspecification) are as follows: 5861138287Smarks 5862193267SjkimToDecimalString - explicit byte-wise conversion of buffer to string of 5863193267Sjkimdecimal values (0-255) separated by commas. ToHexString - explicit byte-wise 5864193267Sjkimconversion of buffer to string of hex values (0-FF) separated by commas. 5865193267SjkimToString - explicit byte-wise conversion of buffer to string. Byte-by-byte 5866193267Sjkimcopy with no transform except NULL terminated. Any other implicit buffer-to- 5867193267Sjkimstring conversion - byte-wise conversion of buffer to string of hex values 5868193267Sjkim(0-FF) separated by spaces. 5869138287Smarks 5870138287Smarks- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. 5871138287Smarks 5872193267Sjkim- Fixed a problem in AcpiNsGetPathnameLength where the returned length was 5873193267Sjkimone byte too short in the case of a node in the root scope. This could 5874193267Sjkimcause a fault during debug output. 5875138287Smarks 5876193267Sjkim- Code and Data Size: Current and previous core subsystem library sizes are 5877193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5878193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5879193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5880193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5881193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5882193267Sjkimthe compiler options used during generation. 5883138287Smarks 5884138287Smarks Previous Release: 5885138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5886138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5887138287Smarks Current Release: 5888138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5889138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5890138287Smarks 5891138287Smarks 5892138287Smarks2) iASL Compiler/Disassembler: 5893138287Smarks 5894138287Smarks- Fixed a Linux generation error. 5895138287Smarks 5896138287Smarks 5897138287Smarks---------------------------------------- 5898138287Smarks16 August 2004. Summary of changes for version 20040816: 5899138287Smarks 5900138287Smarks1) ACPI CA Core Subsystem: 5901138287Smarks 5902193267SjkimDesigned and implemented support within the AML interpreter for the so- 5903193267Sjkimcalled "implicit return". This support returns the result of the last ASL 5904193267Sjkimoperation within a control method, in the absence of an explicit Return() 5905193267Sjkimoperator. A few machines depend on this behavior, even though it is not 5906193267Sjkimexplicitly supported by the ASL language. It is optional support that can 5907193267Sjkimbe enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag. 5908138287Smarks 5909193267SjkimRemoved support for the PCI_Config address space from the internal low level 5910193267Sjkimhardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This 5911193267Sjkimsupport was not used internally, and would not work correctly anyway because 5912193267Sjkimthe PCI bus number and segment number were not supported. There are 5913193267Sjkimseparate interfaces for PCI configuration space access because of the unique 5914138287Smarksinterface. 5915138287Smarks 5916193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5917193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5918193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5919193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5920193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5921193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5922193267Sjkimthe compiler options used during generation. 5923138287Smarks 5924138287Smarks Previous Release: 5925138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5926138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5927138287Smarks Current Release: 5928138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5929138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5930138287Smarks 5931138287Smarks 5932138287Smarks2) iASL Compiler/Disassembler: 5933138287Smarks 5934193267SjkimFixed a problem where constants in ASL expressions at the root level (not 5935193267Sjkimwithin a control method) could be inadvertently truncated during code 5936193267Sjkimgeneration. This problem was introduced in the 20040715 release. 5937138287Smarks 5938138287Smarks 5939138287Smarks---------------------------------------- 5940138287Smarks15 July 2004. Summary of changes for version 20040715: 5941138287Smarks 5942138287Smarks1) ACPI CA Core Subsystem: 5943138287Smarks 5944193267SjkimRestructured the internal HW GPE interfaces to pass/track the current state 5945193267Sjkimof interrupts (enabled/disabled) in order to avoid possible deadlock and 5946193267Sjkimincrease flexibility of the interfaces. 5947138287Smarks 5948193267SjkimImplemented a "lexicographical compare" for String and Buffer objects within 5949193267Sjkimthe logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -- 5950193267Sjkimas per further clarification to the ACPI specification. Behavior is similar 5951193267Sjkimto C library "strcmp". 5952138287Smarks 5953193267SjkimCompleted a major reduction in CPU stack use for the AcpiGetFirmwareTable 5954193267Sjkimexternal function. In the 32-bit non-debug case, the stack use has been 5955193267Sjkimreduced from 168 bytes to 32 bytes. 5956138287Smarks 5957193267SjkimDeployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack, 5958193267Sjkimwhose purpose is to allow the AML interpreter to forgive certain bad AML 5959193267Sjkimconstructs. Default setting is FALSE. 5960138287Smarks 5961193267SjkimImplemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO 5962193267Sjkimsupport code. If enabled, it allows field access to go beyond the end of a 5963193267Sjkimregion definition if the field is within the region length rounded up to the 5964193267Sjkimnext access width boundary (a common coding error.) 5965138287Smarks 5966193267SjkimRenamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to 5967193267SjkimACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these 5968193267Sjkimsymbols are lowercased by the latest version of the AcpiSrc tool. 5969138287Smarks 5970193267SjkimThe prototypes for the PCI interfaces in acpiosxf.h have been updated to 5971193267Sjkimrename "Register" to simply "Reg" to prevent certain compilers from 5972193267Sjkimcomplaining. 5973138287Smarks 5974193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5975193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5976193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5977193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5978193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5979193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5980193267Sjkimthe compiler options used during generation. 5981138287Smarks 5982138287Smarks Previous Release: 5983138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5984138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5985138287Smarks Current Release: 5986138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5987138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5988138287Smarks 5989138287Smarks 5990138287Smarks2) iASL Compiler/Disassembler: 5991138287Smarks 5992193267SjkimImplemented full support for Package objects within the Case() operator. 5993193267SjkimNote: The Break() operator is currently not supported within Case blocks 5994193267Sjkim(TermLists) as there is some question about backward compatibility with ACPI 5995193267Sjkim1.0 interpreters. 5996138287Smarks 5997167802Sjkim 5998193267SjkimFixed a problem where complex terms were not supported properly within the 5999193267SjkimSwitch() operator. 6000138287Smarks 6001193267SjkimEliminated extraneous warning for compiler-emitted reserved names of the 6002193267Sjkimform "_T_x". (Used in Switch/Case operators.) 6003138287Smarks 6004193267SjkimEliminated optimization messages for "_T_x" objects and small constants 6005193267Sjkimwithin the DefinitionBlock operator. 6006138287Smarks 6007138287Smarks 6008138287Smarks---------------------------------------- 6009138287Smarks15 June 2004. Summary of changes for version 20040615: 6010138287Smarks 6011138287Smarks1) ACPI CA Core Subsystem: 6012138287Smarks 6013193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 6014193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 6015193267SjkimLLessEqual. 6016138287Smarks 6017193267SjkimAll directory names in the entire source package are lower case, as they 6018193267Sjkimwere in earlier releases. 6019138287Smarks 6020193267SjkimImplemented "Disassemble" command in the AML debugger that will disassemble 6021193267Sjkima single control method. 6022138287Smarks 6023193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6024193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6025193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6026193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6027193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6028193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6029193267Sjkimthe compiler options used during generation. 6030138287Smarks 6031138287Smarks Previous Release: 6032138287Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 6033138287Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 6034167802Sjkim 6035138287Smarks Current Release: 6036138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 6037138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 6038138287Smarks 6039138287Smarks 6040138287Smarks2) iASL Compiler/Disassembler: 6041138287Smarks 6042193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 6043193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 6044193267SjkimLLessEqual. 6045138287Smarks 6046193267SjkimAll directory names in the entire source package are lower case, as they 6047193267Sjkimwere in earlier releases. 6048138287Smarks 6049193267SjkimFixed a fault when using the -g or -d<nofilename> options if the FADT was 6050193267Sjkimnot found. 6051138287Smarks 6052193267SjkimFixed an issue with the Windows version of the compiler where later versions 6053193267Sjkimof Windows place the FADT in the registry under the name "FADT" and not 6054193267Sjkim"FACP" as earlier versions did. This applies when using the -g or - 6055193267Sjkimd<nofilename> options. The compiler now looks for both strings as 6056193267Sjkimnecessary. 6057138287Smarks 6058193267SjkimFixed a problem with compiler namepath optimization where a namepath within 6059193267Sjkimthe Scope() operator could not be optimized if the namepath was a subpath of 6060193267Sjkimthe current scope path. 6061138287Smarks 6062138287Smarks---------------------------------------- 6063131440Smarks27 May 2004. Summary of changes for version 20040527: 6064131440Smarks 6065131440Smarks1) ACPI CA Core Subsystem: 6066131440Smarks 6067193267SjkimCompleted a new design and implementation for EBDA (Extended BIOS Data Area) 6068193267Sjkimsupport in the RSDP scan code. The original code improperly scanned for the 6069193267SjkimEBDA by simply scanning from memory location 0 to 0x400. The correct method 6070193267Sjkimis to first obtain the EBDA pointer from within the BIOS data area, then 6071193267Sjkimscan 1K of memory starting at the EBDA pointer. There appear to be few if 6072131440Smarksany machines that place the RSDP in the EBDA, however. 6073131440Smarks 6074193267SjkimIntegrated a fix for a possible fault during evaluation of BufferField 6075193267Sjkimarguments. Obsolete code that was causing the problem was removed. 6076131440Smarks 6077193267SjkimFound and fixed a problem in the Field Support Code where data could be 6078193267Sjkimcorrupted on a bit field read that starts on an aligned boundary but does 6079193267Sjkimnot end on an aligned boundary. Merged the read/write "datum length" 6080193267Sjkimcalculation code into a common procedure. 6081131440Smarks 6082131440SmarksRolled in a couple of changes to the FreeBSD-specific header. 6083131440Smarks 6084167802Sjkim 6085193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6086193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6087193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6088193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6089193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6090193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6091193267Sjkimthe compiler options used during generation. 6092131440Smarks 6093131440Smarks Previous Release: 6094131440Smarks Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6095131440Smarks Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 6096131440Smarks Current Release: 6097131440Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 6098131440Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 6099131440Smarks 6100131440Smarks 6101131440Smarks2) iASL Compiler/Disassembler: 6102131440Smarks 6103193267SjkimFixed a generation warning produced by some overly-verbose compilers for a 6104193267Sjkim64-bit constant. 6105131440Smarks 6106131440Smarks---------------------------------------- 6107129684Snjl14 May 2004. Summary of changes for version 20040514: 6108129684Snjl 6109129684Snjl1) ACPI CA Core Subsystem: 6110129684Snjl 6111193267SjkimFixed a problem where hardware GPE enable bits sometimes not set properly 6112193267Sjkimduring and after GPE method execution. Result of 04/27 changes. 6113129684Snjl 6114129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 6115129684Snjl 6116193267SjkimRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single 6117193267SjkimAcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to 6118193267Sjkimthe new AcpiEv* calls as appropriate. 6119129684Snjl 6120193267SjkimACPI_OS_NAME was removed from the OS-specific headers. The default name is 6121193267Sjkimnow "Microsoft Windows NT" for maximum compatibility. However this can be 6122193267Sjkimchanged by modifying the acconfig.h file. 6123129684Snjl 6124193267SjkimAllow a single invocation of AcpiInstallNotifyHandler for a handler that 6125193267Sjkimtraps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag. 6126129684Snjl 6127193267SjkimRun _INI methods on ThermalZone objects. This is against the ACPI 6128193267Sjkimspecification, but there is apparently ASL code in the field that has these 6129193267Sjkim_INI methods, and apparently "other" AML interpreters execute them. 6130129684Snjl 6131193267SjkimPerformed a full 16/32/64 bit lint that resulted in some small changes. 6132129684Snjl 6133193267SjkimAdded a sleep simulation command to the AML debugger to test sleep code. 6134129684Snjl 6135193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6136193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6137193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6138193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6139193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6140193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6141193267Sjkimthe compiler options used during generation. 6142129684Snjl 6143129684Snjl Previous Release: 6144129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6145129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 6146129684Snjl Current Release: 6147129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6148129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 6149129684Snjl 6150129684Snjl---------------------------------------- 6151129684Snjl27 April 2004. Summary of changes for version 20040427: 6152129684Snjl 6153129684Snjl1) ACPI CA Core Subsystem: 6154129684Snjl 6155193267SjkimCompleted a major overhaul of the GPE handling within ACPI CA. There are 6156193267Sjkimnow three types of GPEs: wake-only, runtime-only, and combination wake/run. 6157193267SjkimThe only GPEs allowed to be combination wake/run are for button-style 6158193267Sjkimdevices such as a control-method power button, control-method sleep button, 6159193267Sjkimor a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not 6160193267Sjkimreferenced by any _PRW methods are marked for "runtime" and hardware 6161193267Sjkimenabled. Any GPE that is referenced by a _PRW method is marked for "wake" 6162193267Sjkim(and disabled at runtime). However, at sleep time, only those GPEs that 6163193267Sjkimhave been specifically enabled for wake via the AcpiEnableGpe interface will 6164193267Sjkimactually be hardware enabled. 6165129684Snjl 6166193267SjkimA new external interface has been added, AcpiSetGpeType(), that is meant to 6167193267Sjkimbe used by device drivers to force a GPE to a particular type. It will be 6168193267Sjkimespecially useful for the drivers for the button devices mentioned above. 6169129684Snjl 6170193267SjkimCompleted restructuring of the ACPI CA initialization sequence so that 6171193267Sjkimdefault operation region handlers are installed before GPEs are initialized 6172193267Sjkimand the _PRW methods are executed. This will prevent errors when the _PRW 6173193267Sjkimmethods attempt to access system memory or I/O space. 6174129684Snjl 6175193267SjkimGPE enable/disable no longer reads the GPE enable register. We now keep the 6176193267Sjkimenable info for runtime and wake separate and in the GPE_EVENT_INFO. We 6177193267Sjkimthus no longer depend on the hardware to maintain these bits. 6178129684Snjl 6179193267SjkimAlways clear the wake status and fixed/GPE status bits before sleep, even 6180193267Sjkimfor state S5. 6181129684Snjl 6182193267SjkimImproved the AML debugger output for displaying the GPE blocks and their 6183193267Sjkimcurrent status. 6184129684Snjl 6185193267SjkimAdded new strings for the _OSI method, of the form "Windows 2001 SPx" where 6186193267Sjkimx = 0,1,2,3,4. 6187129684Snjl 6188193267SjkimFixed a problem where the physical address was incorrectly calculated when 6189193267Sjkimthe Load() operator was used to directly load from an Operation Region (vs. 6190193267Sjkimloading from a Field object.) Also added check for minimum table length for 6191193267Sjkimthis case. 6192129684Snjl 6193193267SjkimFix for multiple mutex acquisition. Restore original thread SyncLevel on 6194193267Sjkimmutex release. 6195129684Snjl 6196193267SjkimAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 6197129684Snjlconsistency with the other fields returned. 6198129684Snjl 6199193267SjkimShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such 6200193267Sjkimstructure for each GPE in the system, so the size of this structure is 6201193267Sjkimimportant. 6202129684Snjl 6203193267SjkimCPU stack requirement reduction: Cleaned up the method execution and object 6204193267Sjkimevaluation paths so that now a parameter structure is passed, instead of 6205193267Sjkimcopying the various method parameters over and over again. 6206129684Snjl 6207193267SjkimIn evregion.c: Correctly exit and reenter the interpreter region if and 6208193267Sjkimonly if dispatching an operation region request to a user-installed handler. 6209193267SjkimDo not exit/reenter when dispatching to a default handler (e.g., default 6210193267Sjkimsystem memory or I/O handlers) 6211129684Snjl 6212129684Snjl 6213193267SjkimNotes for updating drivers for the new GPE support. The following changes 6214193267Sjkimmust be made to ACPI-related device drivers that are attached to one or more 6215193267SjkimGPEs: (This information will be added to the ACPI CA Programmer Reference.) 6216129684Snjl 6217193267Sjkim1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must 6218193267Sjkimexplicitly call AcpiEnableGpe. 6219193267Sjkim2) There is a new interface called AcpiSetGpeType. This should be called 6220193267Sjkimbefore enabling the GPE. Also, this interface will automatically disable 6221193267Sjkimthe GPE if it is currently enabled. 6222129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 6223129684Snjl 6224129684SnjlSpecific drivers that must be changed: 6225129684Snjl1) EC driver: 6226193267Sjkim AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 6227129684SnjlAeGpeHandler, NULL); 6228129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 6229129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 6230129684Snjl 6231129684Snjl2) Button Drivers (Power, Lid, Sleep): 6232129684SnjlRun _PRW method under parent device 6233129684SnjlIf _PRW exists: /* This is a control-method button */ 6234129684Snjl Extract GPE number and possibly GpeDevice 6235129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 6236129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 6237129684Snjl 6238193267SjkimFor all other devices that have _PRWs, we automatically set the GPE type to 6239193267SjkimACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This 6240193267Sjkimmust be done on a selective basis, usually requiring some kind of user app 6241193267Sjkimto allow the user to pick the wake devices. 6242129684Snjl 6243129684Snjl 6244193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6245193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6246193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6247193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6248193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6249193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6250193267Sjkimthe compiler options used during generation. 6251129684Snjl 6252129684Snjl Previous Release: 6253129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 6254129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 6255129684Snjl Current Release: 6256167802Sjkim 6257129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6258129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 6259129684Snjl 6260129684Snjl 6261129684Snjl 6262129684Snjl---------------------------------------- 6263128212Snjl02 April 2004. Summary of changes for version 20040402: 6264128212Snjl 6265128212Snjl1) ACPI CA Core Subsystem: 6266128212Snjl 6267193267SjkimFixed an interpreter problem where an indirect store through an ArgX 6268193267Sjkimparameter was incorrectly applying the "implicit conversion rules" during 6269193267Sjkimthe store. From the ACPI specification: "If the target is a method local or 6270193267Sjkimargument (LocalX or ArgX), no conversion is performed and the result is 6271193267Sjkimstored directly to the target". The new behavior is to disable implicit 6272193267Sjkimconversion during ALL stores to an ArgX. 6273128212Snjl 6274193267SjkimChanged the behavior of the _PRW method scan to ignore any and all errors 6275193267Sjkimreturned by a given _PRW. This prevents the scan from aborting from the 6276193267Sjkimfailure of any single _PRW. 6277128212Snjl 6278193267SjkimMoved the runtime configuration parameters from the global init procedure to 6279193267Sjkimstatic variables in acglobal.h. This will allow the host to override the 6280193267Sjkimdefault values easily. 6281128212Snjl 6282193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6283193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6284193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6285193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6286193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6287193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6288193267Sjkimthe compiler options used during generation. 6289128212Snjl 6290128212Snjl Previous Release: 6291128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 6292128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 6293128212Snjl Current Release: 6294128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 6295128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 6296128212Snjl 6297128212Snjl 6298128212Snjl2) iASL Compiler/Disassembler: 6299128212Snjl 6300193267SjkimiASL now fully disassembles SSDTs. However, External() statements are not 6301193267Sjkimgenerated automatically for unresolved symbols at this time. This is a 6302193267Sjkimplanned feature for future implementation. 6303128212Snjl 6304193267SjkimFixed a scoping problem in the disassembler that occurs when the type of the 6305193267Sjkimtarget of a Scope() operator is overridden. This problem caused an 6306193267Sjkimincorrectly nested internal namespace to be constructed. 6307128212Snjl 6308193267SjkimAny warnings or errors that are emitted during disassembly are now commented 6309193267Sjkimout automatically so that the resulting file can be recompiled without any 6310193267Sjkimhand editing. 6311128212Snjl 6312128212Snjl---------------------------------------- 6313128212Snjl26 March 2004. Summary of changes for version 20040326: 6314128212Snjl 6315128212Snjl1) ACPI CA Core Subsystem: 6316128212Snjl 6317193267SjkimImplemented support for "wake" GPEs via interaction between GPEs and the 6318193267Sjkim_PRW methods. Every GPE that is pointed to by one or more _PRWs is 6319193267Sjkimidentified as a WAKE GPE and by default will no longer be enabled at 6320193267Sjkimruntime. Previously, we were blindly enabling all GPEs with a corresponding 6321193267Sjkim_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We 6322193267Sjkimbelieve this has been the cause of thousands of "spurious" GPEs on some 6323128212Snjlsystems. 6324128212Snjl 6325193267SjkimThis new GPE behavior is can be reverted to the original behavior (enable 6326193267SjkimALL GPEs at runtime) via a runtime flag. 6327128212Snjl 6328193267SjkimFixed a problem where aliased control methods could not access objects 6329193267Sjkimproperly. The proper scope within the namespace was not initialized 6330193267Sjkim(transferred to the target of the aliased method) before executing the 6331193267Sjkimtarget method. 6332128212Snjl 6333193267SjkimFixed a potential race condition on internal object deletion on the return 6334193267Sjkimobject in AcpiEvaluateObject. 6335128212Snjl 6336193267SjkimIntegrated a fix for resource descriptors where both _MEM and _MTP were 6337193267Sjkimbeing extracted instead of just _MEM. (i.e. bitmask was incorrectly too 6338193267Sjkimwide, 0x0F instead of 0x03.) 6339128212Snjl 6340193267SjkimAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a 6341193267Sjkimfault in some cases. 6342128212Snjl 6343128212SnjlUpdated Notify() values for debug statements in evmisc.c 6344128212Snjl 6345193267SjkimReturn proper status from AcpiUtMutexInitialize, not just simply AE_OK. 6346128212Snjl 6347193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6348193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6349193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6350193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6351193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6352193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6353193267Sjkimthe compiler options used during generation. 6354128212Snjl 6355128212Snjl Previous Release: 6356167802Sjkim 6357128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 6358128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 6359128212Snjl Current Release: 6360128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 6361128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 6362128212Snjl 6363128212Snjl---------------------------------------- 6364127175Snjl11 March 2004. Summary of changes for version 20040311: 6365127175Snjl 6366127175Snjl1) ACPI CA Core Subsystem: 6367127175Snjl 6368193267SjkimFixed a problem where errors occurring during the parse phase of control 6369193267Sjkimmethod execution did not abort cleanly. For example, objects created and 6370193267Sjkiminstalled in the namespace were not deleted. This caused all subsequent 6371193267Sjkiminvocations of the method to return the AE_ALREADY_EXISTS exception. 6372127175Snjl 6373193267SjkimImplemented a mechanism to force a control method to "Serialized" execution 6374193267Sjkimif the method attempts to create namespace objects. (The root of the 6375193267SjkimAE_ALREADY_EXISTS problem.) 6376127175Snjl 6377193267SjkimImplemented support for the predefined _OSI "internal" control method. 6378193267SjkimInitial supported strings are "Linux", "Windows 2000", "Windows 2001", and 6379193267Sjkim"Windows 2001.1", and can be easily upgraded for new strings as necessary. 6380193267SjkimThis feature will allow "other" operating systems to execute the fully 6381193267Sjkimtested, "Windows" code path through the ASL code 6382127175Snjl 6383193267SjkimGlobal Lock Support: Now allows multiple acquires and releases with any 6384193267Sjkiminternal thread. Removed concept of "owning thread" for this special mutex. 6385127175Snjl 6386193267SjkimFixed two functions that were inappropriately declaring large objects on the 6387193267SjkimCPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during 6388193267Sjkimmethod execution considerably. 6389127175Snjl 6390193267SjkimFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the 6391193267SjkimS4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT. 6392127175Snjl 6393193267SjkimFixed a problem where AcpiEvGpeDetect would fault if there were no GPEs 6394193267Sjkimdefined on the machine. 6395127175Snjl 6396193267SjkimImplemented two runtime options: One to force all control method execution 6397193267Sjkimto "Serialized" to mimic Windows behavior, another to disable _OSI support 6398193267Sjkimif it causes problems on a given machine. 6399127175Snjl 6400193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6401193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6402193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6403193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6404193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6405193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6406193267Sjkimthe compiler options used during generation. 6407127175Snjl 6408127175Snjl Previous Release: 6409127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6410127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6411127175Snjl Current Release: 6412127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 6413127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 6414127175Snjl 6415127175Snjl2) iASL Compiler/Disassembler: 6416127175Snjl 6417193267SjkimFixed an array size problem for FreeBSD that would cause the compiler to 6418193267Sjkimfault. 6419127175Snjl 6420127175Snjl---------------------------------------- 6421126372Snjl20 February 2004. Summary of changes for version 20040220: 6422126372Snjl 6423167802Sjkim 6424126372Snjl1) ACPI CA Core Subsystem: 6425126372Snjl 6426193267SjkimImplemented execution of _SxD methods for Device objects in the 6427126372SnjlGetObjectInfo interface. 6428126372Snjl 6429126372SnjlFixed calls to _SST method to pass the correct arguments. 6430126372Snjl 6431126372SnjlAdded a call to _SST on wake to restore to "working" state. 6432126372Snjl 6433193267SjkimCheck for End-Of-Buffer failure case in the WalkResources interface. 6434126372Snjl 6435193267SjkimIntegrated fix for 64-bit alignment issue in acglobal.h by moving two 6436193267Sjkimstructures to the beginning of the file. 6437126372Snjl 6438126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 6439126372Snjl 6440193267SjkimAfter wake, clear/enable power button. (Perhaps we should clear/enable all 6441193267Sjkimfixed events upon wake.) 6442126372Snjl 6443126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 6444126372Snjl 6445126372SnjlIntegrated latest acnetbsd.h file. 6446126372Snjl 6447126372Snjl---------------------------------------- 6448126372Snjl11 February 2004. Summary of changes for version 20040211: 6449126372Snjl 6450167802Sjkim 6451126372Snjl1) ACPI CA Core Subsystem: 6452126372Snjl 6453193267SjkimCompleted investigation and implementation of the call-by-reference 6454193267Sjkimmechanism for control method arguments. 6455126372Snjl 6456193267SjkimFixed a problem where a store of an object into an indexed package could 6457193267Sjkimfail if the store occurs within a different method than the method that 6458193267Sjkimcreated the package. 6459126372Snjl 6460193267SjkimFixed a problem where the ToDecimal operator could return incorrect results. 6461126372Snjl 6462193267SjkimFixed a problem where the CopyObject operator could fail on some of the more 6463193267Sjkimobscure objects (e.g., Reference objects.) 6464126372Snjl 6465193267SjkimImproved the output of the Debug object to display buffer, package, and 6466193267Sjkimindex objects. 6467126372Snjl 6468193267SjkimFixed a problem where constructs of the form "RefOf (ArgX)" did not return 6469193267Sjkimthe expected result. 6470126372Snjl 6471193267SjkimAdded permanent ACPI_REPORT_ERROR macros for all instances of the 6472126372SnjlACPI_AML_INTERNAL exception. 6473126372Snjl 6474126372SnjlIntegrated latest version of acfreebsd.h 6475126372Snjl 6476126372Snjl---------------------------------------- 6477126372Snjl16 January 2004. Summary of changes for version 20040116: 6478126372Snjl 6479193267SjkimThe purpose of this release is primarily to update the copyright years in 6480193267Sjkimeach module, thus causing a huge number of diffs. There are a few small 6481193267Sjkimfunctional changes, however. 6482126372Snjl 6483126372Snjl1) ACPI CA Core Subsystem: 6484126372Snjl 6485193267SjkimImproved error messages when there is a problem finding one or more of the 6486193267Sjkimrequired base ACPI tables 6487126372Snjl 6488126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 6489126372Snjl 6490126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 6491126372Snjl 6492126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 6493126372Snjl 6494126372Snjl2) iASL compiler 6495126372Snjl 6496193267SjkimFixed a problem introduced in December that disabled the correct disassembly 6497193267Sjkimof Resource Templates 6498126372Snjl 6499126372Snjl 6500126372Snjl---------------------------------------- 6501126372Snjl03 December 2003. Summary of changes for version 20031203: 6502126372Snjl 6503126372Snjl1) ACPI CA Core Subsystem: 6504126372Snjl 6505126372SnjlChanged the initialization of Operation Regions during subsystem 6506126372Snjlinit to perform two entire walks of the ACPI namespace; The first 6507126372Snjlto initialize the regions themselves, the second to execute the 6508126372Snjl_REG methods. This fixed some interdependencies across _REG 6509126372Snjlmethods found on some machines. 6510126372Snjl 6511126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 6512126372Snjlthe object reference count, and not create a new copy of the 6513126372Snjlobject if the Local1 is uninitialized. 6514126372Snjl 6515126372SnjlImplemented support for the _SST reserved method during sleep 6516126372Snjltransitions. 6517126372Snjl 6518126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 6519126372Snjlwaking up, this is apparently required by some machines. 6520126372Snjl 6521193267SjkimWhen sleeping, clear the wake status only if SleepState is not S5. 6522126372Snjl 6523126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 6524126372Snjlpointer arithmetic advanced a string pointer too far. 6525126372Snjl 6526126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 6527126372Snjlcould be returned if the requested table has not been loaded. 6528126372Snjl 6529193267SjkimWithin the support for IRQ resources, restructured the handling of 6530126372Snjlthe active and edge/level bits. 6531126372Snjl 6532126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 6533126372Snjlleaked under certain error conditions. 6534126372Snjl 6535126372SnjlImproved error messages for the cases where the ACPI mode could 6536126372Snjlnot be entered. 6537126372Snjl 6538126372SnjlCode and Data Size: Current and previous core subsystem library 6539126372Snjlsizes are shown below. These are the code and data sizes for the 6540126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6541126372Snjlthese values do not include any ACPI driver or OSPM code. The 6542126372Snjldebug version of the code includes the debug output trace 6543126372Snjlmechanism and has a much larger code and data size. Note that 6544193267Sjkimthese values will vary depending on the efficiency of the compiler 6545126372Snjland the compiler options used during generation. 6546126372Snjl 6547126372Snjl Previous Release (20031029): 6548126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6549126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6550126372Snjl Current Release: 6551126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6552126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6553126372Snjl 6554126372Snjl2) iASL Compiler/Disassembler: 6555126372Snjl 6556126372SnjlImplemented a fix for the iASL disassembler where a bad index was 6557126372Snjlgenerated. This was most noticeable on 64-bit platforms 6558126372Snjl 6559126372Snjl 6560126372Snjl---------------------------------------- 6561126372Snjl29 October 2003. Summary of changes for version 20031029: 6562126372Snjl 6563126372Snjl1) ACPI CA Core Subsystem: 6564126372Snjl 6565167802Sjkim 6566126372SnjlFixed a problem where a level-triggered GPE with an associated 6567126372Snjl_Lxx control method was incorrectly cleared twice. 6568126372Snjl 6569126372SnjlFixed a problem with the Field support code where an access can 6570126372Snjloccur beyond the end-of-region if the field is non-aligned but 6571126372Snjlextends to the very end of the parent region (resulted in an 6572126372SnjlAE_AML_REGION_LIMIT exception.) 6573126372Snjl 6574126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 6575193267Sjkimwould not get invoked on an RTC event. The RTC event bitmasks for 6576126372Snjlthe PM1 registers were not being initialized properly. 6577126372Snjl 6578126372SnjlImplemented support for executing _STA and _INI methods for 6579126372SnjlProcessor objects. Although this is currently not part of the 6580193267SjkimACPI specification, there is existing ASL code that depends on the 6581126372Snjlinit-time execution of these methods. 6582126372Snjl 6583126372SnjlImplemented and deployed a GetDescriptorName function to decode 6584126372Snjlthe various types of internal descriptors. Guards against null 6585126372Snjldescriptors during debug output also. 6586126372Snjl 6587126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 6588193267Sjkimcharacter namespace node name. This function simplifies the debug 6589193267Sjkimand error output, as well as guarding against null pointers during 6590126372Snjloutput. 6591126372Snjl 6592126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 6593126372Snjlsimplify the debug and error output of 64-bit integers. This 6594126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 6595126372Snjlintegers. 6596126372Snjl 6597126372SnjlUpdated the implementation of the Stall() operator to only call 6598126372SnjlAcpiOsStall(), and also return an error if the operand is larger 6599126372Snjlthan 255. This preserves the required behavior of not 6600126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 6601126372Snjlcalled for "long stalls". 6602126372Snjl 6603126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 6604126372Snjlinitialized are now treated as NOOPs. 6605126372Snjl 6606126372SnjlCleaned up a handful of warnings during 64-bit generation. 6607126372Snjl 6608126372SnjlFixed a reported error where and incorrect GPE number was passed 6609126372Snjlto the GPE dispatch handler. This value is only used for error 6610193267Sjkimoutput, however. Used this opportunity to clean up and streamline 6611126372Snjlthe GPE dispatch code. 6612126372Snjl 6613126372SnjlCode and Data Size: Current and previous core subsystem library 6614126372Snjlsizes are shown below. These are the code and data sizes for the 6615126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6616126372Snjlthese values do not include any ACPI driver or OSPM code. The 6617167802Sjkim 6618126372Snjldebug version of the code includes the debug output trace 6619126372Snjlmechanism and has a much larger code and data size. Note that 6620193267Sjkimthese values will vary depending on the efficiency of the compiler 6621126372Snjland the compiler options used during generation. 6622126372Snjl 6623126372Snjl Previous Release (20031002): 6624126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6625126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6626126372Snjl Current Release: 6627126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6628126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6629126372Snjl 6630126372Snjl 6631126372Snjl2) iASL Compiler/Disassembler: 6632126372Snjl 6633193267SjkimUpdated the iASL compiler to return an error if the operand to the 6634126372SnjlStall() operator is larger than 255. 6635126372Snjl 6636126372Snjl 6637126372Snjl---------------------------------------- 6638126372Snjl02 October 2003. Summary of changes for version 20031002: 6639126372Snjl 6640126372Snjl 6641126372Snjl1) ACPI CA Core Subsystem: 6642126372Snjl 6643126372SnjlFixed a problem with Index Fields where the index was not 6644126372Snjlincremented for fields that require multiple writes to the 6645126372Snjlindex/data registers (Fields that are wider than the data 6646126372Snjlregister.) 6647126372Snjl 6648126372SnjlFixed a problem with all Field objects where a write could go 6649126372Snjlbeyond the end-of-field if the field was larger than the access 6650193267Sjkimgranularity and therefore required multiple writes to complete the 6651126372Snjlrequest. An extra write beyond the end of the field could happen 6652126372Snjlinadvertently. 6653126372Snjl 6654126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 6655126372Snjlwould incorrectly be returned if the width of the Data Register 6656126372Snjlwas larger than the specified field access width. 6657126372Snjl 6658126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 6659126372Snjloperation. Implemented full support for the "DdbHandle" object 6660126372Snjlthroughout the ACPI CA subsystem. 6661126372Snjl 6662126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 6663126372SnjlCA header files. Even though these tables are not directly 6664126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 6665126372Snjldevice drivers. 6666126372Snjl 6667126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 6668126372Snjllist. This included checks for minimum descriptor length, and 6669126372Snjlsupport for trailing NULL strings within descriptors that have 6670126372Snjloptional string elements. 6671126372Snjl 6672126372SnjlCode and Data Size: Current and previous core subsystem library 6673126372Snjlsizes are shown below. These are the code and data sizes for the 6674126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6675126372Snjlthese values do not include any ACPI driver or OSPM code. The 6676126372Snjldebug version of the code includes the debug output trace 6677126372Snjlmechanism and has a much larger code and data size. Note that 6678193267Sjkimthese values will vary depending on the efficiency of the compiler 6679126372Snjland the compiler options used during generation. 6680126372Snjl 6681126372Snjl Previous Release (20030918): 6682126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6683126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6684126372Snjl Current Release: 6685126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6686126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6687126372Snjl 6688126372Snjl 6689126372Snjl2) iASL Compiler: 6690126372Snjl 6691126372SnjlImplemented detection of non-ASCII characters within the input 6692126372Snjlsource ASL file. This catches attempts to compile binary (AML) 6693126372Snjlfiles early in the compile, with an informative error message. 6694126372Snjl 6695126372SnjlFixed a problem where the disassembler would fault if the output 6696193267Sjkimfilename could not be generated or if the output file could not be 6697126372Snjlopened. 6698126372Snjl 6699126372Snjl---------------------------------------- 6700126372Snjl18 September 2003. Summary of changes for version 20030918: 6701126372Snjl 6702126372Snjl 6703126372Snjl1) ACPI CA Core Subsystem: 6704126372Snjl 6705126372SnjlFound and fixed a longstanding problem with the late execution of 6706126372Snjlthe various deferred AML opcodes (such as Operation Regions, 6707126372SnjlBuffer Fields, Buffers, and Packages). If the name string 6708126372Snjlspecified for the name of the new object placed the object in a 6709126372Snjlscope other than the current scope, the initialization/execution 6710126372Snjlof the opcode failed. The solution to this problem was to 6711126372Snjlimplement a mechanism where the late execution of such opcodes 6712126372Snjldoes not attempt to lookup/create the name a second time in an 6713126372Snjlincorrect scope. This fixes the "region size computed 6714126372Snjlincorrectly" problem. 6715126372Snjl 6716193267SjkimFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a 6717126372SnjlGlobal Lock AE_BAD_PARAMETER error. 6718126372Snjl 6719126372SnjlFixed several 64-bit issues with prototypes, casting and data 6720126372Snjltypes. 6721126372Snjl 6722126372SnjlRemoved duplicate prototype from acdisasm.h 6723126372Snjl 6724126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 6725126372Snjl 6726126372SnjlCode and Data Size: Current and previous core subsystem library 6727126372Snjlsizes are shown below. These are the code and data sizes for the 6728126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6729126372Snjlthese values do not include any ACPI driver or OSPM code. The 6730126372Snjldebug version of the code includes the debug output trace 6731126372Snjlmechanism and has a much larger code and data size. Note that 6732193267Sjkimthese values will vary depending on the efficiency of the compiler 6733126372Snjland the compiler options used during generation. 6734126372Snjl 6735126372Snjl Previous Release: 6736167802Sjkim 6737126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6738126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6739126372Snjl Current Release: 6740126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6741126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6742126372Snjl 6743126372Snjl 6744126372Snjl2) Linux: 6745126372Snjl 6746126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 6747126372Snjlcorrect sleep time in seconds. 6748126372Snjl 6749126372Snjl---------------------------------------- 6750126372Snjl14 July 2003. Summary of changes for version 20030619: 6751126372Snjl 6752126372Snjl1) ACPI CA Core Subsystem: 6753126372Snjl 6754126372SnjlParse SSDTs in order discovered, as opposed to reverse order 6755126372Snjl(Hrvoje Habjanic) 6756126372Snjl 6757126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 6758126372SnjlKlausner, 6759126372Snjl Nate Lawson) 6760126372Snjl 6761126372Snjl 6762126372Snjl2) Linux: 6763126372Snjl 6764126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 6765126372Snjl 6766126372Snjlproc function return value cleanups (Andi Kleen) 6767126372Snjl 6768126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 6769126372Snjl 6770126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 6771126372Snjl 6772126372Snjl 6773126372Snjl---------------------------------------- 6774117521Snjl19 June 2003. Summary of changes for version 20030619: 6775117521Snjl 6776117521Snjl1) ACPI CA Core Subsystem: 6777117521Snjl 6778193267SjkimFix To/FromBCD, eliminating the need for an arch-specific #define. 6779117521Snjl 6780117521SnjlDo not acquire a semaphore in the S5 shutdown path. 6781117521Snjl 6782117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 6783117521Snjl 6784117521SnjlFix sleep/stall code reversal. (Andi Kleen) 6785117521Snjl 6786117521SnjlRevert a change having to do with control method calling 6787117521Snjlsemantics. 6788117521Snjl 6789117521Snjl2) Linux: 6790117521Snjl 6791117521Snjlacpiphp update (Takayoshi Kochi) 6792117521Snjl 6793117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 6794117521Snjl 6795117521SnjlMention acpismp=force in config help 6796117521Snjl 6797117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 6798167802Sjkim 6799193267Sjkimcompatibility and also cleans up the code to a significant degree. 6800117521Snjl 6801117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 6802117521Snjl 6803117521Snjl---------------------------------------- 6804117521Snjl22 May 2003. Summary of changes for version 20030522: 6805117521Snjl 6806117521Snjl1) ACPI CA Core Subsystem: 6807117521Snjl 6808117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 6809117521Snjloccurred occasionally during _BST evaluation. This turned out to 6810117521Snjlbe an Owner ID allocation issue where a called method did not get 6811193267Sjkima new ID assigned to it. Eventually, (after 64k calls), the Owner 6812193267SjkimID UINT16 would wraparound so that the ID would be the same as the 6813126372Snjlcaller's and the called method would delete the caller's 6814117521Snjlnamespace. 6815117521Snjl 6816117521SnjlImplemented extended error reporting for control methods that are 6817117521Snjlaborted due to a run-time exception. Output includes the exact 6818193267SjkimAML instruction that caused the method abort, a dump of the method 6819126372Snjllocals and arguments at the time of the abort, and a trace of all 6820126372Snjlnested control method calls. 6821117521Snjl 6822117521SnjlModified the interpreter to allow the creation of buffers of zero 6823117521Snjllength from the AML code. Implemented new code to ensure that no 6824117521Snjlattempt is made to actually allocate a memory buffer (of length 6825193267Sjkimzero) - instead, a simple buffer object with a NULL buffer pointer 6826126372Snjland length zero is created. A warning is no longer issued when 6827126372Snjlthe AML attempts to create a zero-length buffer. 6828117521Snjl 6829117521SnjlImplemented a workaround for the "leading asterisk issue" in 6830117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 6831117521Snjlasterisk is automatically removed if present in any HID, UID, or 6832117521SnjlCID strings. The iASL compiler will still flag this asterisk as 6833117521Snjlan error, however. 6834117521Snjl 6835193267SjkimImplemented full support for _CID methods that return a package of 6836193267Sjkimmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface 6837126372Snjlnow additionally returns a device _CID list if present. This 6838126372Snjlrequired a change to the external interface in order to pass an 6839126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 6840117521Snjlvariable length. 6841117521Snjl 6842117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 6843117521Snjlhandler initialization code did not know about this exception. 6844117521Snjl 6845117521SnjlCode and Data Size: Current and previous core subsystem library 6846117521Snjlsizes are shown below. These are the code and data sizes for the 6847117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6848117521Snjlthese values do not include any ACPI driver or OSPM code. The 6849117521Snjldebug version of the code includes the debug output trace 6850117521Snjlmechanism and has a much larger code and data size. Note that 6851193267Sjkimthese values will vary depending on the efficiency of the compiler 6852126372Snjland the compiler options used during generation. 6853117521Snjl 6854117521Snjl Previous Release (20030509): 6855117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6856117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6857117521Snjl Current Release: 6858117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6859117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6860117521Snjl 6861117521Snjl 6862117521Snjl2) Linux: 6863117521Snjl 6864117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 6865193267Sjkimafter it was already working, thus disabling all ACPI and the IRQs 6866126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 6867117521SnjlJordet) 6868117521Snjl 6869117521SnjlToshiba driver update (John Belmonte) 6870117521Snjl 6871117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 6872117521SnjlMorton) 6873117521Snjl 6874117521Snjl 6875117521Snjl3) iASL Compiler: 6876117521Snjl 6877117521SnjlFixed a reported problem where multiple (nested) ElseIf() 6878117521Snjlstatements were not handled correctly by the compiler, resulting 6879117521Snjlin incorrect warnings and incorrect AML code. This was a problem 6880117521Snjlin both the ASL parser and the code generator. 6881117521Snjl 6882117521Snjl 6883117521Snjl4) Documentation: 6884117521Snjl 6885193267SjkimAdded changes to existing interfaces, new exception codes, and new 6886126372Snjltext concerning reference count object management versus garbage 6887126372Snjlcollection. 6888117521Snjl 6889117521Snjl---------------------------------------- 6890117521Snjl09 May 2003. Summary of changes for version 20030509. 6891117521Snjl 6892117521Snjl 6893117521Snjl1) ACPI CA Core Subsystem: 6894117521Snjl 6895117521SnjlChanged the subsystem initialization sequence to hold off 6896193267Sjkiminstallation of address space handlers until the hardware has been 6897193267Sjkiminitialized and the system has entered ACPI mode. This is because 6898126372Snjlthe installation of space handlers can cause _REG methods to be 6899193267Sjkimrun. Previously, the _REG methods could potentially be run before 6900126372SnjlACPI mode was enabled. 6901117521Snjl 6902193267SjkimFixed some memory leak issues related to address space handler and 6903126372Snjlnotify handler installation. There were some problems with the 6904126372Snjlreference count mechanism caused by the fact that the handler 6905117521Snjlobjects are shared across several namespace objects. 6906117521Snjl 6907117521SnjlFixed a reported problem where reference counts within the 6908117521Snjlnamespace were not properly updated when named objects created by 6909117521Snjlmethod execution were deleted. 6910117521Snjl 6911117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 6912117521Snjlissue during subsystem termination. Restructured the table data 6913117521Snjlstructures to simplify the linked lists and the related code. 6914117521Snjl 6915117521SnjlFixed a problem where the table ID associated with secondary 6916193267Sjkimtables (SSDTs) was not being propagated into the namespace objects 6917126372Snjlcreated by those tables. This would only present a problem for 6918126372Snjltables that are unloaded at run-time, however. 6919117521Snjl 6920117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 6921117521Snjltype as the length parameter (instead of UINT32). 6922117521Snjl 6923117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 6924117521Snjlappears on various systems. This problem could happen when there 6925117521Snjlare multiple PCI_Config operation regions under a single PCI root 6926117521Snjlbus. This doesn't happen very frequently, but there are some 6927117521Snjlsystems that do this in the ASL. 6928117521Snjl 6929117521SnjlFixed a reported problem where the internal DeleteNode function 6930117521Snjlwas incorrectly handling the case where a namespace node was the 6931117521Snjlfirst in the parent's child list, and had additional peers (not 6932117521Snjlthe only child, but first in the list of children.) 6933117521Snjl 6934193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6935126372Snjlbelow. These are the code and data sizes for the acpica.lib 6936126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6937126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6938126372Snjlversion of the code includes the debug output trace mechanism and 6939193267Sjkimhas a much larger code and data size. Note that these values will 6940126372Snjlvary depending on the efficiency of the compiler and the compiler 6941126372Snjloptions used during generation. 6942117521Snjl 6943117521Snjl Previous Release 6944117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6945117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6946117521Snjl Current Release: 6947117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6948117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6949117521Snjl 6950117521Snjl 6951117521Snjl2) Linux: 6952117521Snjl 6953117521SnjlAllow ":" in OS override string (Ducrot Bruno) 6954117521Snjl 6955117521SnjlKobject fix (Greg KH) 6956117521Snjl 6957117521Snjl 6958117521Snjl3 iASL Compiler/Disassembler: 6959117521Snjl 6960117521SnjlFixed a problem in the generation of the C source code files (AML 6961117521Snjlis emitted in C source statements for BIOS inclusion) where the 6962193267SjkimAscii dump that appears within a C comment at the end of each line 6963126372Snjlcould cause a compile time error if the AML sequence happens to 6964126372Snjlhave an open comment or close comment sequence embedded. 6965117521Snjl 6966117521Snjl 6967117521Snjl---------------------------------------- 6968117521Snjl24 April 2003. Summary of changes for version 20030424. 6969117521Snjl 6970117521Snjl 6971117521Snjl1) ACPI CA Core Subsystem: 6972117521Snjl 6973117521SnjlSupport for big-endian systems has been implemented. Most of the 6974193267Sjkimsupport has been invisibly added behind big-endian versions of the 6975126372SnjlACPI_MOVE_* macros. 6976117521Snjl 6977117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 6978117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 6979117521Snjllow level hardware write routine. The offset parameter was 6980193267Sjkimactually eliminated from the low level read/write routines because 6981126372Snjlthey had become obsolete. 6982117521Snjl 6983117521SnjlFixed a problem where a handler object was deleted twice during 6984117521Snjlthe removal of a fixed event handler. 6985117521Snjl 6986117521Snjl 6987117521Snjl2) Linux: 6988117521Snjl 6989117521SnjlA fix for SMP systems with link devices was contributed by 6990167802Sjkim 6991117521SnjlCompaq's Dan Zink. 6992117521Snjl 6993117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 6994193267Sjkim(Linux ISRs no longer return void, so we can propagate the handler 6995126372Snjlreturn value from the ACPI CA core back to the OS.) 6996117521Snjl 6997117521Snjl 6998167802Sjkim 6999117521Snjl3) Documentation: 7000117521Snjl 7001117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 7002117521Snjlinterfaces and changes to existing interfaces. 7003117521Snjl 7004117521Snjl---------------------------------------- 7005117521Snjl28 March 2003. Summary of changes for version 20030328. 7006117521Snjl 7007117521Snjl1) ACPI CA Core Subsystem: 7008117521Snjl 7009117521SnjlThe GPE Block Device support has been completed. New interfaces 7010117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 7011117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 7012117521Snjlinto separate interfaces for Fixed Events and General Purpose 7013117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 7014117521Snjl 7015117521SnjlFixed a problem where the error message "Failed to acquire 7016117521Snjlsemaphore" would appear during operations on the embedded 7017117521Snjlcontroller (EC). 7018117521Snjl 7019193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7020126372Snjlbelow. These are the code and data sizes for the acpica.lib 7021126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7022126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7023126372Snjlversion of the code includes the debug output trace mechanism and 7024193267Sjkimhas a much larger code and data size. Note that these values will 7025126372Snjlvary depending on the efficiency of the compiler and the compiler 7026126372Snjloptions used during generation. 7027117521Snjl 7028117521Snjl Previous Release 7029117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 7030117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 7031117521Snjl Current Release: 7032117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 7033117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 7034117521Snjl 7035117521Snjl 7036117521Snjl---------------------------------------- 7037114237Snjl28 February 2003. Summary of changes for version 20030228. 7038114237Snjl 7039114237Snjl 7040114237Snjl1) ACPI CA Core Subsystem: 7041114237Snjl 7042114237SnjlThe GPE handling and dispatch code has been completely overhauled 7043114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 7044114237SnjlThis affects internal data structures and code only; there should 7045114237Snjlbe no differences visible externally. One new file has been 7046114237Snjladded, evgpeblk.c 7047114237Snjl 7048114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 7049114237Snjlfields that are used to determine the GPE block lengths. The 7050114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 7051193267Sjkimstructures are ignored. This is per the ACPI specification but it 7052126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 7053193267Sjkim(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128). 7054114237Snjl 7055114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 7056114237Snjlregister to look at the SCI_EN bit. On some machines, this read 7057114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 7058114237Snjlin fact be the cause of slow battery status response on some 7059114237Snjlsystems.) 7060114237Snjl 7061193267SjkimFixed a problem where a store of a NULL string to a package object 7062126372Snjlcould cause the premature deletion of the object. This was seen 7063126372Snjlduring execution of the battery _BIF method on some systems, 7064126372Snjlresulting in no battery data being returned. 7065114237Snjl 7066114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 7067114237Snjllists. 7068114237Snjl 7069193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7070126372Snjlbelow. These are the code and data sizes for the acpica.lib 7071126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7072126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7073126372Snjlversion of the code includes the debug output trace mechanism and 7074193267Sjkimhas a much larger code and data size. Note that these values will 7075126372Snjlvary depending on the efficiency of the compiler and the compiler 7076126372Snjloptions used during generation. 7077114237Snjl 7078114237Snjl Previous Release 7079114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7080114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7081114237Snjl Current Release: 7082114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 7083114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 7084114237Snjl 7085114237Snjl 7086114237Snjl2) Linux 7087114237Snjl 7088114237SnjlS3 fixes (Ole Rohne) 7089114237Snjl 7090114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 7091114237Snjl(Bjorn Helgaas) 7092114237Snjl 7093114237SnjlAdd S4BIOS support (Pavel Machek) 7094114237Snjl 7095114237SnjlMap in entire table before performing checksum (John Stultz) 7096114237Snjl 7097193267SjkimExpand the mem= cmdline to allow the specification of reserved and 7098126372SnjlACPI DATA blocks (Pavel Machek) 7099114237Snjl 7100114237SnjlNever use ACPI on VISWS 7101114237Snjl 7102114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 7103114237Snjl 7104114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 7105114237Snjlcausing us to think that some systems support C2 when they really 7106114237Snjldon't. 7107114237Snjl 7108114237SnjlDo not count processor objects for non-present CPUs (Thanks to 7109114237SnjlDominik Brodowski) 7110114237Snjl 7111114237Snjl 7112114237Snjl3) iASL Compiler: 7113114237Snjl 7114114237SnjlFixed a problem where ASL include files could not be found and 7115114237Snjlopened. 7116114237Snjl 7117114237SnjlAdded support for the _PDC reserved name. 7118114237Snjl 7119114237Snjl 7120117521Snjl---------------------------------------- 7121114237Snjl22 January 2003. Summary of changes for version 20030122. 7122114237Snjl 7123114237Snjl 7124114237Snjl1) ACPI CA Core Subsystem: 7125114237Snjl 7126114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 7127114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 7128193267Sjkimprogrammers believe that this is a NOOP. Since this store doesn't 7129126372Snjldo anything anyway, the new prototype behavior will ignore this 7130126372Snjlerror. This is a case where we can relax the strict checking in 7131126372Snjlthe interpreter in the name of compatibility. 7132114237Snjl 7133114237Snjl 7134114237Snjl2) Linux 7135114237Snjl 7136114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 7137114237SnjlLinux package for the first time. This is the utility that is 7138193267Sjkimused to convert the ACPI CA base source code to the Linux version. 7139114237Snjl 7140114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 7141114237Snjl 7142114237Snjl(Both) Move more headers to include/acpi, and delete an unused 7143114237Snjlheader. 7144114237Snjl 7145114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 7146114237Snjl 7147114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 7148114237Snjl 7149114237Snjl(Both) Remove include of unused header (Adrian Bunk) 7150114237Snjl 7151114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 7152114237Snjlthe 7153193267Sjkimformer now also includes the latter, acpiphp.h only needs the one, 7154126372Snjlnow. 7155114237Snjl 7156193267Sjkim(2.5) Make it possible to select method of bios restoring after S3 7157114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 7158114237Snjl 7159114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 7160114237Snjl 7161114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 7162114237Snjl 7163114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 7164114237Snjl(Dominik Brodowski) 7165114237Snjl 7166114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 7167114237Snjl 7168114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 7169114237SnjlVisinoni) 7170114237Snjl 7171114237Snjl 7172114237Snjl3) iASL Compiler: 7173114237Snjl 7174114237SnjlAdded support to disassemble SSDT and PSDTs. 7175114237Snjl 7176114237SnjlImplemented support to obtain SSDTs from the Windows registry if 7177114237Snjlavailable. 7178114237Snjl 7179114237Snjl 7180102550Siwasaki---------------------------------------- 7181114237Snjl09 January 2003. Summary of changes for version 20030109. 7182114237Snjl 7183114237Snjl1) ACPI CA Core Subsystem: 7184114237Snjl 7185114237SnjlChanged the behavior of the internal Buffer-to-String conversion 7186193267Sjkimfunction. The current ACPI specification states that the contents 7187126372Snjlof the buffer are "converted to a string of two-character 7188126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 7189193267Sjkimthis definition is not backwards compatible with existing ACPI 1.0 7190193267Sjkimimplementations (although the behavior was not defined in the ACPI 7191126372Snjl1.0 specification). The new behavior simply copies data from the 7192193267Sjkimbuffer to the string until a null character is found or the end of 7193126372Snjlthe buffer is reached. The new String object is always null 7194126372Snjlterminated. This problem was seen during the generation of _BIF 7195126372Snjlbattery data where incorrect strings were returned for battery 7196126372Snjltype, etc. This will also require an errata to the ACPI 7197126372Snjlspecification. 7198114237Snjl 7199114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 7200114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 7201114237Snjl 7202114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 7203114237Snjlupdated to 2003. 7204114237Snjl 7205193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7206126372Snjlbelow. These are the code and data sizes for the acpica.lib 7207126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7208126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7209126372Snjlversion of the code includes the debug output trace mechanism and 7210193267Sjkimhas a much larger code and data size. Note that these values will 7211126372Snjlvary depending on the efficiency of the compiler and the compiler 7212126372Snjloptions used during generation. 7213114237Snjl 7214114237Snjl Previous Release 7215114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7216114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7217114237Snjl Current Release: 7218114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7219114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7220114237Snjl 7221114237Snjl 7222114237Snjl2) Linux 7223114237Snjl 7224114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 7225114237Snjl 7226114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 7227114237Snjl 7228114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 7229114237Snjl 7230114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 7231114237Snjl 7232114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 7233114237Snjlof schedule_work() 7234114237Snjl 7235114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 7236114237Snjl 7237114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 7238114237Snjl 7239114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 7240114237Snjl 7241114237SnjlSeveral changes have been made to the source code translation 7242114237Snjlutility that generates the Linux Code in order to make the code 7243114237Snjlmore "Linux-like": 7244114237Snjl 7245114237SnjlAll typedefs on structs and unions have been removed in keeping 7246114237Snjlwith the Linux coding style. 7247114237Snjl 7248114237SnjlRemoved the non-Linux SourceSafe module revision number from each 7249114237Snjlmodule header. 7250114237Snjl 7251114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 7252114237SnjlDoubled the number of symbols that are lowercased. 7253114237Snjl 7254114237SnjlFixed a problem where identifiers within procedure headers and 7255114237Snjlwithin quotes were not fully lower cased (they were left with a 7256114237Snjlstarting capital.) 7257114237Snjl 7258114237SnjlSome C macros whose only purpose is to allow the generation of 16- 7259114237Snjlbit code are now completely removed in the Linux code, increasing 7260114237Snjlreadability and maintainability. 7261114237Snjl 7262114237Snjl---------------------------------------- 7263114237Snjl 7264114237Snjl12 December 2002. Summary of changes for version 20021212. 7265114237Snjl 7266114237Snjl 7267114237Snjl1) ACPI CA Core Subsystem: 7268114237Snjl 7269114237SnjlFixed a problem where the creation of a zero-length AML Buffer 7270114237Snjlwould cause a fault. 7271114237Snjl 7272193267SjkimFixed a problem where a Buffer object that pointed to a static AML 7273126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 7274126372Snjlmemory corruption. 7275114237Snjl 7276114237SnjlFixed a problem where a user buffer (passed in to the external 7277114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 7278114237Snjlsmall to complete the operation, causing memory corruption. 7279114237Snjl 7280114237SnjlFixed a problem in the Buffer-to-String conversion code where a 7281114237Snjlstring of length one was always returned, regardless of the size 7282114237Snjlof the input Buffer object. 7283114237Snjl 7284114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 7285114237Snjllack of need and lack of consistent use. 7286114237Snjl 7287193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7288126372Snjlbelow. These are the code and data sizes for the acpica.lib 7289126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7290126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7291126372Snjlversion of the code includes the debug output trace mechanism and 7292193267Sjkimhas a much larger code and data size. Note that these values will 7293126372Snjlvary depending on the efficiency of the compiler and the compiler 7294126372Snjloptions used during generation. 7295114237Snjl 7296114237Snjl Previous Release 7297114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 7298114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 7299114237Snjl Current Release: 7300114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7301114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7302114237Snjl 7303114237Snjl 7304114237Snjl---------------------------------------- 7305114237Snjl05 December 2002. Summary of changes for version 20021205. 7306114237Snjl 7307114237Snjl1) ACPI CA Core Subsystem: 7308114237Snjl 7309114237SnjlFixed a problem where a store to a String or Buffer object could 7310114237Snjlcause corruption of the DSDT if the object type being stored was 7311114237Snjlthe same as the target object type and the length of the object 7312114237Snjlbeing stored was equal to or smaller than the original (existing) 7313114237Snjltarget object. This was seen to cause corruption of battery _BIF 7314114237Snjlbuffers if the _BIF method modified the buffer on the fly. 7315114237Snjl 7316193267SjkimFixed a problem where an internal error was generated if a control 7317126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 7318126372SnjlPackage declaration. This was caused by the deferred parsing of 7319126372Snjlthe control method and thus the deferred creation of the internal 7320126372Snjlmethod object. The solution to this problem was to create the 7321126372Snjlinternal method object at the moment the method is encountered in 7322126372Snjlthe first pass - so that subsequent references to the method will 7323126372Snjlable to obtain the required parameter count and thus properly 7324126372Snjlparse the method invocation. This problem presented itself as an 7325126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 7326114237Snjl 7327114237SnjlFixed a problem where the internal String object copy routine did 7328193267Sjkimnot always allocate sufficient memory for the target String object 7329126372Snjland caused memory corruption. This problem was seen to cause 7330126372Snjl"Allocation already present in list!" errors as memory allocation 7331126372Snjlbecame corrupted. 7332114237Snjl 7333193267SjkimImplemented a new function for the evaluation of namespace objects 7334126372Snjlthat allows the specification of the allowable return object 7335126372Snjltypes. This simplifies a lot of code that checks for a return 7336126372Snjlobject of one or more specific objects returned from the 7337114237Snjlevaluation (such as _STA, etc.) This may become and external 7338114237Snjlfunction if it would be useful to ACPI-related drivers. 7339114237Snjl 7340114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 7341114237Snjlclarity. 7342114237Snjl 7343114237SnjlCompleted additional code restructuring to allow more modular 7344114237Snjllinking for iASL compiler and AcpiExec. Several files were split 7345114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 7346114237Snjl 7347114237SnjlImplemented an abort mechanism to terminate an executing control 7348193267Sjkimmethod via the AML debugger. This feature is useful for debugging 7349126372Snjlcontrol methods that depend (wait) for specific hardware 7350126372Snjlresponses. 7351114237Snjl 7352193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7353126372Snjlbelow. These are the code and data sizes for the acpica.lib 7354126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7355126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7356126372Snjlversion of the code includes the debug output trace mechanism and 7357193267Sjkimhas a much larger code and data size. Note that these values will 7358126372Snjlvary depending on the efficiency of the compiler and the compiler 7359126372Snjloptions used during generation. 7360114237Snjl 7361114237Snjl Previous Release 7362114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7363114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 7364114237Snjl Current Release: 7365114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 7366114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 7367114237Snjl 7368114237Snjl 7369114237Snjl2) iASL Compiler/Disassembler 7370114237Snjl 7371114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 7372114237SnjlDescriptors. If specified in the ASL, the optional "Resource 7373114237SnjlSource Index" and "Resource Source" fields were not inserted into 7374114237Snjlthe correct location within the AML resource descriptor, creating 7375114237Snjlan invalid descriptor. 7376114237Snjl 7377193267SjkimFixed a disassembler problem for "Interrupt" resource descriptors. 7378126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 7379126372Snjlwere ignored. 7380114237Snjl 7381114237Snjl 7382114237Snjl---------------------------------------- 7383114237Snjl22 November 2002. Summary of changes for version 20021122. 7384114237Snjl 7385114237Snjl 7386114237Snjl1) ACPI CA Core Subsystem: 7387114237Snjl 7388114237SnjlFixed a reported problem where an object stored to a Method Local 7389114237Snjlor Arg was not copied to a new object during the store - the 7390114237Snjlobject pointer was simply copied to the Local/Arg. This caused 7391114237Snjlall subsequent operations on the Local/Arg to also affect the 7392114237Snjloriginal source of the store operation. 7393114237Snjl 7394114237SnjlFixed a problem where a store operation to a Method Local or Arg 7395114237Snjlwas not completed properly if the Local/Arg contained a reference 7396114237Snjl(from RefOf) to a named field. The general-purpose store-to- 7397114237Snjlnamespace-node code is now used so that this case is handled 7398114237Snjlautomatically. 7399114237Snjl 7400193267SjkimFixed a problem where the internal object copy routine would cause 7401126372Snjla protection fault if the object being copied was a Package and 7402126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 7403114237Snjlpackage. 7404114237Snjl 7405114237SnjlFixed a problem with the GPE initialization that resulted from an 7406114237Snjlambiguity in the ACPI specification. One section of the 7407114237Snjlspecification states that both the address and length of the GPE 7408193267Sjkimblock must be zero if the block is not supported. Another section 7409126372Snjlimplies that only the address need be zero if the block is not 7410193267Sjkimsupported. The code has been changed so that both the address and 7411126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 7412126372Snjlif either the address or the length is zero, the GPE block is 7413126372Snjlinvalid.) 7414114237Snjl 7415193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7416126372Snjlbelow. These are the code and data sizes for the acpica.lib 7417126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7418126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7419126372Snjlversion of the code includes the debug output trace mechanism and 7420193267Sjkimhas a much larger code and data size. Note that these values will 7421126372Snjlvary depending on the efficiency of the compiler and the compiler 7422126372Snjloptions used during generation. 7423114237Snjl 7424114237Snjl Previous Release 7425114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7426114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7427114237Snjl Current Release: 7428114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7429114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 7430114237Snjl 7431114237Snjl 7432114237Snjl2) Linux 7433114237Snjl 7434114237SnjlCleaned up EC driver. Exported an external EC read/write 7435114237Snjlinterface. By going through this, other drivers (most notably 7436114237Snjlsonypi) will be able to serialize access to the EC. 7437114237Snjl 7438114237Snjl 7439114237Snjl3) iASL Compiler/Disassembler 7440114237Snjl 7441114237SnjlImplemented support to optionally generate include files for both 7442114237SnjlASM and C (the -i switch). This simplifies BIOS development by 7443114237Snjlautomatically creating include files that contain external 7444114237Snjldeclarations for the symbols that are created within the 7445167802Sjkim 7446114237Snjl(optionally generated) ASM and C AML source files. 7447114237Snjl 7448114237Snjl 7449114237Snjl---------------------------------------- 7450107325Siwasaki15 November 2002. Summary of changes for version 20021115. 7451104470Siwasaki 7452107325Siwasaki1) ACPI CA Core Subsystem: 7453107325Siwasaki 7454114237SnjlFixed a memory leak problem where an error during resolution of 7455167802Sjkim 7456114237Snjlmethod arguments during a method invocation from another method 7457114237Snjlfailed to cleanup properly by deleting all successfully resolved 7458114237Snjlargument objects. 7459107325Siwasaki 7460114237SnjlFixed a problem where the target of the Index() operator was not 7461114237Snjlcorrectly constructed if the source object was a package. This 7462114237Snjlproblem has not been detected because the use of a target operand 7463114237Snjlwith Index() is very rare. 7464107325Siwasaki 7465107325SiwasakiFixed a problem with the Index() operator where an attempt was 7466107325Siwasakimade to delete the operand objects twice. 7467107325Siwasaki 7468107325SiwasakiFixed a problem where an attempt was made to delete an operand 7469114237Snjltwice during execution of the CondRefOf() operator if the target 7470114237Snjldid not exist. 7471107325Siwasaki 7472114237SnjlImplemented the first of perhaps several internal create object 7473193267Sjkimfunctions that create and initialize a specific object type. This 7474126372Snjlconsolidates duplicated code wherever the object is created, thus 7475126372Snjlshrinking the size of the subsystem. 7476107325Siwasaki 7477114237SnjlImplemented improved debug/error messages for errors that occur 7478114237Snjlduring nested method invocations. All executing method pathnames 7479193267Sjkimare displayed (with the error) as the call stack is unwound - thus 7480126372Snjlsimplifying debug. 7481107325Siwasaki 7482107325SiwasakiFixed a problem introduced in the 10/02 release that caused 7483114237Snjlpremature deletion of a buffer object if a buffer was used as an 7484114237SnjlASL operand where an integer operand is required (Thus causing an 7485193267Sjkimimplicit object conversion from Buffer to Integer.) The change in 7486126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 7487114237Snjlincorrectly.) 7488107325Siwasaki 7489193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7490126372Snjlbelow. These are the code and data sizes for the acpica.lib 7491126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7492126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7493126372Snjlversion of the code includes the debug output trace mechanism and 7494193267Sjkimhas a much larger code and data size. Note that these values will 7495126372Snjlvary depending on the efficiency of the compiler and the compiler 7496126372Snjloptions used during generation. 7497107325Siwasaki 7498107325Siwasaki Previous Release 7499107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7500107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7501107325Siwasaki Current Release: 7502107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7503107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7504107325Siwasaki 7505107325Siwasaki 7506107325Siwasaki2) Linux 7507107325Siwasaki 7508114237SnjlChanged the implementation of the ACPI semaphores to use down() 7509114237Snjlinstead of down_interruptable(). It is important that the 7510114237Snjlexecution of ACPI control methods not be interrupted by signals. 7511114237SnjlMethods must run to completion, or the system may be left in an 7512114237Snjlunknown/unstable state. 7513107325Siwasaki 7514193267SjkimFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set. 7515126372Snjl(Shawn Starr) 7516107325Siwasaki 7517107325Siwasaki 7518107325Siwasaki3) iASL Compiler/Disassembler 7519107325Siwasaki 7520107325Siwasaki 7521114237SnjlChanged the default location of output files. All output files 7522114237Snjlare now placed in the current directory by default instead of in 7523114237Snjlthe directory of the source file. This change may affect some 7524114237Snjlexisting makefiles, but it brings the behavior of the compiler in 7525114237Snjlline with other similar tools. The location of the output files 7526114237Snjlcan be overridden with the -p command line switch. 7527107325Siwasaki 7528114237Snjl 7529107325Siwasaki---------------------------------------- 7530107325Siwasaki11 November 2002. Summary of changes for version 20021111. 7531107325Siwasaki 7532107325Siwasaki 7533114237Snjl0) ACPI Specification 2.0B is released and is now available at: 7534114237Snjlhttp://www.acpi.info/index.html 7535107325Siwasaki 7536107325Siwasaki 7537107325Siwasaki1) ACPI CA Core Subsystem: 7538107325Siwasaki 7539107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 7540114237SnjlThis includes the early detection and handoff of the request to 7541114237Snjlthe SMBus region handler (avoiding all of the complex field 7542107325Siwasakisupport code), and support for the bidirectional return packet 7543107325Siwasakifrom an SMBus write operation. This paves the way for the 7544107325Siwasakidevelopment of SMBus drivers in each host operating system. 7545107325Siwasaki 7546107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 7547107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 7548107325Siwasakispecification. This had the side effect of causing ASL 7549107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 7550107325Siwasakiforever. Changed all internal references to the ACPI timeout 7551193267Sjkimparameter to 16 bits to prevent future problems. Changed the name 7552126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 7553107325Siwasaki 7554193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7555126372Snjlbelow. These are the code and data sizes for the acpica.lib 7556126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7557126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7558126372Snjlversion of the code includes the debug output trace mechanism and 7559193267Sjkimhas a much larger code and data size. Note that these values will 7560126372Snjlvary depending on the efficiency of the compiler and the compiler 7561126372Snjloptions used during generation. 7562107325Siwasaki 7563107325Siwasaki Previous Release 7564107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7565107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7566107325Siwasaki Current Release: 7567107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7568107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7569107325Siwasaki 7570107325Siwasaki 7571107325Siwasaki2) Linux 7572107325Siwasaki 7573107325SiwasakiModule loading/unloading fixes (John Cagle) 7574107325Siwasaki 7575107325Siwasaki 7576107325Siwasaki3) iASL Compiler/Disassembler 7577107325Siwasaki 7578107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 7579107325Siwasaki 7580107325SiwasakiImplemented support for the disassembly of all SMBus protocol 7581107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 7582107325Siwasaki 7583107325Siwasaki---------------------------------------- 7584107325Siwasaki01 November 2002. Summary of changes for version 20021101. 7585107325Siwasaki 7586107325Siwasaki 7587107325Siwasaki1) ACPI CA Core Subsystem: 7588107325Siwasaki 7589193267SjkimFixed a problem where platforms that have a GPE1 block but no GPE0 7590126372Snjlblock were not handled correctly. This resulted in a "GPE 7591114237Snjloverlap" error message. GPE0 is no longer required. 7592107325Siwasaki 7593107325SiwasakiRemoved code added in the previous release that inserted nodes 7594114237Snjlinto the namespace in alphabetical order. This caused some side- 7595114237Snjleffects on various machines. The root cause of the problem is 7596114237Snjlstill under investigation since in theory, the internal ordering 7597114237Snjlof the namespace nodes should not matter. 7598107325Siwasaki 7599107325Siwasaki 7600114237SnjlEnhanced error reporting for the case where a named object is not 7601114237Snjlfound during control method execution. The full ACPI namepath 7602114237Snjl(name reference) of the object that was not found is displayed in 7603114237Snjlthis case. 7604107325Siwasaki 7605193267SjkimNote: as a result of the overhaul of the namespace object types in 7606126372Snjlthe previous release, the namespace nodes for the predefined 7607114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 7608114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 7609114237Snjlmanagement code but may affect code that walks the namespace tree 7610114237Snjllooking for specific object types. 7611114237Snjl 7612193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7613126372Snjlbelow. These are the code and data sizes for the acpica.lib 7614126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7615126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7616126372Snjlversion of the code includes the debug output trace mechanism and 7617193267Sjkimhas a much larger code and data size. Note that these values will 7618126372Snjlvary depending on the efficiency of the compiler and the compiler 7619126372Snjloptions used during generation. 7620107325Siwasaki 7621107325Siwasaki Previous Release 7622107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7623107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7624107325Siwasaki Current Release: 7625107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7626107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7627107325Siwasaki 7628107325Siwasaki 7629107325Siwasaki2) Linux 7630107325Siwasaki 7631107325SiwasakiFixed a problem introduced in the previous release where the 7632193267SjkimProcessor and Thermal objects were not recognized and installed in 7633193267Sjkim/proc. This was related to the scope type change described above. 7634107325Siwasaki 7635107325Siwasaki 7636107325Siwasaki3) iASL Compiler/Disassembler 7637107325Siwasaki 7638114237SnjlImplemented the -g option to get all of the required ACPI tables 7639114237Snjlfrom the registry and save them to files (Windows version of the 7640193267Sjkimcompiler only.) The required tables are the FADT, FACS, and DSDT. 7641107325Siwasaki 7642114237SnjlAdded ACPI table checksum validation during table disassembly in 7643114237Snjlorder to catch corrupted tables. 7644107325Siwasaki 7645107325Siwasaki 7646107325Siwasaki---------------------------------------- 7647107325Siwasaki22 October 2002. Summary of changes for version 20021022. 7648107325Siwasaki 7649107325Siwasaki1) ACPI CA Core Subsystem: 7650107325Siwasaki 7651114237SnjlImplemented a restriction on the Scope operator that the target 7652114237Snjlmust already exist in the namespace at the time the operator is 7653114237Snjlencountered (during table load or method execution). In other 7654114237Snjlwords, forward references are not allowed and Scope() cannot 7655114237Snjlcreate a new object. This changes the previous behavior where the 7656193267Sjkiminterpreter would create the name if not found. This new behavior 7657126372Snjlcorrectly enables the search-to-root algorithm during namespace 7658126372Snjllookup of the target name. Because of this upsearch, this fixes 7659126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 7660126372Snjlinterpreter and iASL compiler compatible with other ACPI 7661114237Snjlimplementations. 7662107325Siwasaki 7663114237SnjlCompleted a major overhaul of the internal ACPI object types for 7664114237Snjlthe ACPI Namespace and the associated operand objects. Many of 7665114237Snjlthese types had become obsolete with the introduction of the two- 7666114237Snjlpass namespace load. This cleanup simplifies the code and makes 7667114237Snjlthe entire namespace load mechanism much clearer and easier to 7668114237Snjlunderstand. 7669107325Siwasaki 7670114237SnjlImproved debug output for tracking scope opening/closing to help 7671114237Snjldiagnose scoping issues. The old scope name as well as the new 7672114237Snjlscope name are displayed. Also improved error messages for 7673114237Snjlproblems with ASL Mutex objects and error messages for GPE 7674114237Snjlproblems. 7675107325Siwasaki 7676107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 7677107325Siwasaki 7678114237SnjlAll string output (for all namespace/object dumps) now uses the 7679193267Sjkimcommon ACPI string output procedure which handles escapes properly 7680126372Snjland does not emit non-printable characters. 7681107325Siwasaki 7682107325SiwasakiFixed some issues with constants in the 64-bit version of the 7683107325Siwasakilocal C library (utclib.c) 7684107325Siwasaki 7685107325Siwasaki 7686107325Siwasaki2) Linux 7687107325Siwasaki 7688107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 7689107325Siwasakiinterrupt level. 7690107325Siwasaki 7691107325Siwasaki 7692107325Siwasaki3) iASL Compiler/Disassembler 7693107325Siwasaki 7694193267SjkimImplemented ACPI 2.0B grammar change that disallows all Type 1 and 7695126372Snjl2 opcodes outside of a control method. This means that the 7696114237Snjl"executable" operators (versus the "namespace" operators) cannot 7697193267Sjkimbe used at the table level; they can only be used within a control 7698126372Snjlmethod. 7699107325Siwasaki 7700107325SiwasakiImplemented the restriction on the Scope() operator where the 7701107325Siwasakitarget must already exist in the namespace at the time the 7702114237Snjloperator is encountered (during ASL compilation). In other words, 7703193267Sjkimforward references are not allowed and Scope() cannot create a new 7704126372Snjlobject. This makes the iASL compiler compatible with other ACPI 7705193267Sjkimimplementations and makes the Scope() implementation adhere to the 7706126372SnjlACPI specification. 7707107325Siwasaki 7708193267SjkimFixed a problem where namepath optimization for the Alias operator 7709193267Sjkimwas optimizing the wrong path (of the two namepaths.) This caused 7710126372Snjla "Missing alias link" error message. 7711107325Siwasaki 7712114237SnjlFixed a problem where an "unknown reserved name" warning could be 7713114237Snjlincorrectly generated for names like "_SB" when the trailing 7714114237Snjlunderscore is not used in the original ASL. 7715107325Siwasaki 7716107325SiwasakiFixed a problem where the reserved name check did not handle 7717114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 7718114237Snjlthe NamePath was examined instead of the last NameSeg. 7719107325Siwasaki 7720107325Siwasaki 7721107325Siwasaki---------------------------------------- 7722107325Siwasaki 7723104470Siwasaki02 October 2002. Summary of changes for this release. 7724104470Siwasaki 7725104470Siwasaki 7726104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 7727104470Siwasaki 7728104470SiwasakiFixed a problem where a store/copy of a string to an existing 7729193267Sjkimstring did not always set the string length properly in the String 7730126372Snjlobject. 7731104470Siwasaki 7732104470SiwasakiFixed a reported problem with the ToString operator where the 7733193267Sjkimbehavior was identical to the ToHexString operator instead of just 7734126372Snjlsimply converting a raw buffer to a string data type. 7735104470Siwasaki 7736104470SiwasakiFixed a problem where CopyObject and the other "explicit" 7737193267Sjkimconversion operators were not updating the internal namespace node 7738126372Snjltype as part of the store operation. 7739104470Siwasaki 7740104470SiwasakiFixed a memory leak during implicit source operand conversion 7741193267Sjkimwhere the original object was not deleted if it was converted to a 7742126372Snjlnew object of a different type. 7743104470Siwasaki 7744193267SjkimEnhanced error messages for all problems associated with namespace 7745193267Sjkimlookups. Common procedure generates and prints the lookup name as 7746126372Snjlwell as the formatted status. 7747104470Siwasaki 7748104470SiwasakiCompleted implementation of a new design for the Alias support 7749193267Sjkimwithin the namespace. The existing design did not handle the case 7750193267Sjkimwhere a new object was assigned to one of the two names due to the 7751193267Sjkimuse of an explicit conversion operator, resulting in the two names 7752126372Snjlpointing to two different objects. The new design simply points 7753126372Snjlthe Alias name to the original name node - not to the object. 7754193267SjkimThis results in a level of indirection that must be handled in the 7755126372Snjlname resolution mechanism. 7756104470Siwasaki 7757193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7758126372Snjlbelow. These are the code and data sizes for the acpica.lib 7759126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7760126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7761126372Snjlversion of the code includes the debug output trace mechanism and 7762193267Sjkimhas a larger code and data size. Note that these values will vary 7763126372Snjldepending on the efficiency of the compiler and the compiler 7764126372Snjloptions used during generation. 7765104470Siwasaki 7766104470Siwasaki Previous Release 7767104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7768104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7769104470Siwasaki Current Release: 7770104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7771104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7772104470Siwasaki 7773104470Siwasaki 7774104470Siwasaki2) Linux 7775104470Siwasaki 7776104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 7777104470SiwasakiNeumann) 7778104470Siwasaki 7779104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 7780104470Siwasaki 7781114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 7782104470Siwasaki 7783104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 7784104470Siwasaki 7785104470SiwasakiIA64 fixes. (David Mosberger) 7786104470Siwasaki 7787104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 7788104470Siwasaki 7789104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 7790104470SiwasakiBrodowski) 7791104470Siwasaki 7792104470Siwasaki 7793104470Siwasaki3) iASL Compiler/Disassembler 7794104470Siwasaki 7795104470SiwasakiClarified some warning/error messages. 7796104470Siwasaki 7797104470Siwasaki 7798104470Siwasaki---------------------------------------- 7799104470Siwasaki18 September 2002. Summary of changes for this release. 7800104470Siwasaki 7801104470Siwasaki 7802104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 7803104470Siwasaki 7804114237SnjlFixed a reported problem with reference chaining (via the Index() 7805193267Sjkimand RefOf() operators) in the ObjectType() and SizeOf() operators. 7806126372SnjlThe definition of these operators includes the dereferencing of 7807126372Snjlall chained references to return information on the base object. 7808104470Siwasaki 7809104470SiwasakiFixed a problem with stores to indexed package elements - the 7810104470Siwasakiexisting code would not complete the store if an "implicit 7811114237Snjlconversion" was not performed. In other words, if the existing 7812114237Snjlobject (package element) was to be replaced completely, the code 7813114237Snjldidn't handle this case. 7814104470Siwasaki 7815104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 7816104470Siwasakitarget name to refer to an object of type Integer, String, or 7817104470SiwasakiBuffer, in addition to the scoping object types (Device, 7818104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 7819114237SnjlThis allows existing AML code that has workarounds for a bug in 7820193267SjkimWindows to function properly. A warning is issued, however. This 7821126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 7822126372Snjlan example of this type of ASL code: 7823104470Siwasaki 7824104470Siwasaki Name(DEB,0x00) 7825104470Siwasaki Scope(DEB) 7826104470Siwasaki { 7827104470Siwasaki 7828114237SnjlFixed some reported problems with 64-bit integer support in the 7829114237Snjllocal implementation of C library functions (clib.c) 7830104470Siwasaki 7831104470Siwasaki 7832104470Siwasaki2) Linux 7833104470Siwasaki 7834104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 7835104470Siwasakiundefined in non-SMP. 7836104470Siwasaki 7837114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 7838114237Snjlsystems that do not have an interrupt override entry in the MADT. 7839104470Siwasaki 7840104470Siwasaki2.5 big driver reorganization (Pat Mochel) 7841104470Siwasaki 7842104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 7843104470Siwasaki 7844104470SiwasakiNew blacklist entries (Andi Kleen) 7845104470Siwasaki 7846114237SnjlBlacklist improvements. Split blacklist code out into a separate 7847114237Snjlfile. Move checking the blacklist to very early. Previously, we 7848114237Snjlwould use ACPI tables, and then halfway through init, check the 7849114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 7850114237Snjlback to non-ACPI. 7851104470Siwasaki 7852104470Siwasaki 7853104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 7854104470Siwasaki 7855114237SnjlFixed a problem where the typechecking code didn't know that an 7856114237Snjlalias could point to a method. In other words, aliases were not 7857114237Snjlbeing dereferenced during typechecking. 7858104470Siwasaki 7859104470Siwasaki 7860104470Siwasaki---------------------------------------- 7861104470Siwasaki29 August 2002. Summary of changes for this release. 7862104470Siwasaki 7863104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 7864104470Siwasaki 7865114237SnjlIf the target of a Scope() operator already exists, it must be an 7866114237Snjlobject type that actually opens a scope -- such as a Device, 7867193267SjkimMethod, Scope, etc. This is a fatal runtime error. Similar error 7868126372Snjlcheck has been added to the iASL compiler also. 7869104470Siwasaki 7870114237SnjlTightened up the namespace load to disallow multiple names in the 7871114237Snjlsame scope. This previously was allowed if both objects were of 7872114237Snjlthe same type. (i.e., a lookup was the same as entering a new 7873114237Snjlname). 7874104470Siwasaki 7875104470Siwasaki 7876104470Siwasaki2) Linux 7877104470Siwasaki 7878104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 7879104470Siwasakipolarity. 7880104470Siwasaki 7881104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 7882104470Siwasaki 7883104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 7884104470Siwasakiinterpreter *or* the tables. 7885104470Siwasaki 7886193267SjkimAdded arch-neutral support for parsing SLIT and SRAT tables (Kochi 7887126372SnjlTakayoshi) 7888104470Siwasaki 7889104470Siwasaki 7890104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 7891104470Siwasaki 7892104470SiwasakiImplemented namepath optimization for name declarations. For 7893104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 7894104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 7895104470Siwasaki\_SB_ scope. This optimization is in addition to the named 7896104470Siwasakireference path optimization first released in the previous 7897114237Snjlversion. This would seem to complete all possible optimizations 7898114237Snjlfor namepaths within the ASL/AML. 7899104470Siwasaki 7900114237SnjlIf the target of a Scope() operator already exists, it must be an 7901114237Snjlobject type that actually opens a scope -- such as a Device, 7902114237SnjlMethod, Scope, etc. 7903104470Siwasaki 7904114237SnjlImplemented a check and warning for unreachable code in the same 7905114237Snjlblock below a Return() statement. 7906104470Siwasaki 7907114237SnjlFixed a problem where the listing file was not generated if the 7908114237Snjlcompiler aborted if the maximum error count was exceeded (200). 7909104470Siwasaki 7910193267SjkimFixed a problem where the typechecking of method return values was 7911126372Snjlbroken. This includes the check for a return value when the 7912114237Snjlmethod is invoked as a TermArg (a return value is expected.) 7913104470Siwasaki 7914104470SiwasakiFixed a reported problem where EOF conditions during a quoted 7915104470Siwasakistring or comment caused a fault. 7916104470Siwasaki 7917104470Siwasaki 7918104470Siwasaki---------------------------------------- 7919102550Siwasaki15 August 2002. Summary of changes for this release. 7920102550Siwasaki 7921102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 7922102550Siwasaki 7923114237SnjlFixed a reported problem where a Store to a method argument that 7924193267Sjkimcontains a reference did not perform the indirect store correctly. 7925126372SnjlThis problem was created during the conversion to the new 7926126372Snjlreference object model - the indirect store to a method argument 7927126372Snjlcode was not updated to reflect the new model. 7928102550Siwasaki 7929114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 7930193267Sjkimhandle corner cases, and improve code legibility (Kochi Takayoshi) 7931102550Siwasaki 7932102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 7933114237Snjlprefix. The heavy use of the carat operator by the new namepath 7934193267Sjkimoptimization in the iASL compiler uncovered a problem with the AML 7935126372Snjlinterpreter handling of this prefix. In the case where one or 7936126372Snjlmore carats precede a single nameseg, the nameseg was treated as 7937126372Snjlstandalone and the search rule (to root) was inadvertently 7938114237Snjlapplied. This could cause both the iASL compiler and the 7939114237Snjlinterpreter to find the wrong object or to miss the error that 7940114237Snjlshould occur if the object does not exist at that exact pathname. 7941102550Siwasaki 7942114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 7943193267Sjkimload. This was a relatively minor tweak to the table loading code 7944126372Snjl(a problem caused by the unexpected encounter with a method 7945193267Sjkiminvocation not within a control method), but it does not solve the 7946126372Snjloverall issue of the execution of AML code at the table level. 7947126372SnjlThis investigation is still ongoing. 7948102550Siwasaki 7949193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7950126372Snjlbelow. These are the code and data sizes for the acpica.lib 7951126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7952126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7953126372Snjlversion of the code includes the debug output trace mechanism and 7954193267Sjkimhas a larger code and data size. Note that these values will vary 7955126372Snjldepending on the efficiency of the compiler and the compiler 7956126372Snjloptions used during generation. 7957102550Siwasaki 7958102550Siwasaki Previous Release 7959104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7960104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7961102550Siwasaki Current Release: 7962104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7963104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7964102550Siwasaki 7965102550Siwasaki 7966102550Siwasaki2) Linux 7967102550Siwasaki 7968102550SiwasakiRemove redundant slab.h include (Brad Hards) 7969102550Siwasaki 7970102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 7971102550Siwasaki 7972102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 7973102550Siwasaki 7974104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 7975104470SiwasakiMachek) 7976102550Siwasaki 7977102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 7978102550Siwasaki 7979102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 7980102550Siwasaki 7981102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 7982102550Siwasaki 7983102550Siwasaki 7984102550Siwasaki3) iASL Compiler/Disassembler 7985102550Siwasaki 7986114237SnjlReworked the compiler options to make them more consistent and to 7987114237Snjluse two-letter options where appropriate. We were running out of 7988114237Snjlsensible letters. This may break some makefiles, so check the 7989114237Snjlcurrent options list by invoking the compiler with no parameters. 7990102550Siwasaki 7991102550SiwasakiCompleted the design and implementation of the ASL namepath 7992114237Snjloptimization option for the compiler. This option optimizes all 7993114237Snjlreferences to named objects to the shortest possible path. The 7994193267Sjkimfirst attempt tries to utilize a single nameseg (4 characters) and 7995126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 7996126372Snjlcannot be used (because either the name is not in the search path 7997126372Snjlor there is a conflict with another object with the same name), 7998126372Snjlthe pathname is optimized using the carat prefix (usually a 7999126372Snjlshorter string than specifying the entire path from the root.) 8000102550Siwasaki 8001114237SnjlImplemented support to obtain the DSDT from the Windows registry 8002114237Snjl(when the disassembly option is specified with no input file). 8003114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 8004114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 8005114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 8006114237Snjlfunction in the DOS OSL to make the disassembler truly OS 8007114237Snjlindependent. 8008102550Siwasaki 8009114237SnjlImplemented a new option to disassemble and compile in one step. 8010114237SnjlWhen used without an input filename, this option will grab the 8011193267SjkimDSDT from the local machine, disassemble it, and compile it in one 8012126372Snjlstep. 8013102550Siwasaki 8014114237SnjlAdded a warning message for invalid escapes (a backslash followed 8015114237Snjlby any character other than the allowable escapes). This catches 8016114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 8017167802Sjkim 8018193267SjkimAlso, there are numerous instances in the ACPI specification where 8019126372Snjlthis error occurs. 8020102550Siwasaki 8021104470SiwasakiAdded a compiler option to disable all optimizations. This is 8022114237Snjlbasically the "compatibility mode" because by using this option, 8023114237Snjlthe AML code will come out exactly the same as other ASL 8024114237Snjlcompilers. 8025102550Siwasaki 8026114237SnjlAdded error messages for incorrectly ordered dependent resource 8027114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 8028114237Snjldependent resource list, nested dependent function macros (both 8029114237Snjlstart and end), and missing StartDependentFn macro. These are 8030114237Snjlcommon errors that should be caught at compile time. 8031102550Siwasaki 8032114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 8033114237Snjlmust be included in the namespace for proper disassembly (because 8034114237Snjlthe disassembler must know the number of arguments.) 8035102550Siwasaki 8036104470SiwasakiAdded an "optimization" message type that is optional (off by 8037114237Snjldefault). This message is used for all optimizations - including 8038193267Sjkimconstant folding, integer optimization, and namepath optimization. 8039102550Siwasaki 8040102550Siwasaki---------------------------------------- 8041102550Siwasaki25 July 2002. Summary of changes for this release. 8042102550Siwasaki 8043102550Siwasaki 8044102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 8045102550Siwasaki 8046114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 8047193267Sjkimcode and has been integrated into the iASL compiler (see below) as 8048126372Snjlwell as the single-step disassembly for the AML debugger and the 8049126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 8050126372Snjlresource templates and macros are fully supported. The 8051114237Snjldisassembler has been tested on over 30 different AML files, 8052114237Snjlproducing identical AML when the resulting disassembled ASL file 8053114237Snjlis recompiled with the same ASL compiler. 8054102550Siwasaki 8055114237SnjlModified the Resource Manager to allow zero interrupts and zero 8056114237Snjldma channels during the GetCurrentResources call. This was 8057114237Snjlcausing problems on some platforms. 8058102550Siwasaki 8059114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 8060114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 8061114237Snjlinterfaces. 8062102550Siwasaki 8063193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8064126372Snjlbelow. These are the code and data sizes for the acpica.lib 8065126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8066126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8067126372Snjlversion of the code includes the debug output trace mechanism and 8068193267Sjkimhas a larger code and data size. Note that these values will vary 8069126372Snjldepending on the efficiency of the compiler and the compiler 8070126372Snjloptions used during generation. 8071102550Siwasaki 8072102550Siwasaki Previous Release 8073104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 8074104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 8075102550Siwasaki Current Release: 8076104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 8077104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 8078102550Siwasaki 8079102550Siwasaki 8080102550Siwasaki2) Linux 8081102550Siwasaki 8082102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 8083102550Siwasaki 8084114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 8085114237Snjl(Richard Schaal) 8086102550Siwasaki 8087102550Siwasaki 8088102550Siwasaki3) iASL compiler 8089102550Siwasaki 8090114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 8091114237Snjloption invokes the disassembler to completely disassemble an 8092114237Snjlinput AML file, producing as output a text ASL file with the 8093114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 8094114237Snjlsource files.) A future enhancement will allow the disassembler 8095114237Snjlto obtain the BIOS DSDT from the registry under Windows. 8096102550Siwasaki 8097102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 8098102550Siwasakidescriptors where an invalid AML sequence was created. 8099102550Siwasaki 8100114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 8101114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 8102114237Snjlcausing reduction conflicts. 8103102550Siwasaki 8104104470SiwasakiFixed a problem where the Ones opcode could get converted to a 8105193267Sjkimvalue of zero if "Ones" was used where a byte, word or dword value 8106126372Snjlwas expected. The 64-bit value is now truncated to the correct 8107126372Snjlsize with the correct value. 8108102550Siwasaki 8109102550Siwasaki 8110167802Sjkim 8111102550Siwasaki---------------------------------------- 8112102550Siwasaki02 July 2002. Summary of changes for this release. 8113102550Siwasaki 8114102550Siwasaki 8115102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 8116102550Siwasaki 8117114237SnjlThe Table Manager code has been restructured to add several new 8118114237Snjlfeatures. Tables that are not required by the core subsystem 8119114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 8120193267Sjkimvalidated in any way and are returned from AcpiGetFirmwareTable if 8121126372Snjlrequested. The AcpiOsTableOverride interface is now called for 8122126372Snjleach table that is loaded by the subsystem in order to allow the 8123126372Snjlhost to override any table it chooses. Previously, only the DSDT 8124126372Snjlcould be overridden. Added one new files, tbrsdt.c and 8125114237Snjltbgetall.c. 8126102550Siwasaki 8127193267SjkimFixed a problem with the conversion of internal package objects to 8128126372Snjlexternal objects (when a package is returned from a control 8129114237Snjlmethod.) The return buffer length was set to zero instead of the 8130114237Snjlproper length of the package object. 8131102550Siwasaki 8132104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 8133114237Snjloperators when passing reference arguments to control methods. A 8134114237Snjlnew type of Reference object is used internally for references 8135114237Snjlproduced by the RefOf operator. 8136102550Siwasaki 8137193267SjkimAdded additional error messages in the Resource Manager to explain 8138126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 8139102550Siwasaki 8140104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 8141193267Sjkimfiner granularity initialization sequence. These two calls should 8142126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 8143114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 8144114237Snjlsame. 8145102550Siwasaki 8146102550Siwasaki 8147102550Siwasaki2) Linux 8148102550Siwasaki 8149114237SnjlUpdated the ACPI utilities module to understand the new style of 8150193267Sjkimfully resolved package objects that are now returned from the core 8151126372Snjlsubsystem. This eliminates errors of the form: 8152102550Siwasaki 8153102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 8154102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 8155102550Siwasaki Invalid element in package (not a device reference) 8156102550Siwasaki 8157102550SiwasakiThe method evaluation utility uses the new buffer allocation 8158102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 8159102550Siwasaki 8160102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 8161167802Sjkim 8162114237SnjlController before the namespace has been fully initialized, which 8163114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 8164114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 8165114237Snjllimited testing was performed of the added functionality.) 8166102550Siwasaki 8167102550SiwasakiFixed memory leaks in the EC driver. 8168102550Siwasaki 8169102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 8170102550Siwasaki 8171114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 8172114237Snjlno longer needed since acpi_evaluate_object can optionally 8173104470Siwasakiallocate memory for the return object. 8174102550Siwasaki 8175193267SjkimImplemented fix for keyboard hang when getting battery readings on 8176126372Snjlsome systems (Stephen White) 8177102550Siwasaki 8178102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 8179102550Siwasaki 8180114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 8181114237Snjlsupport 8182102550Siwasaki 8183102550Siwasaki---------------------------------------- 8184102550Siwasaki11 June 2002. Summary of changes for this release. 8185102550Siwasaki 8186102550Siwasaki 8187102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 8188102550Siwasaki 8189104470SiwasakiFixed a reported problem where constants such as Zero and One 8190114237Snjlappearing within _PRT packages were not handled correctly within 8191114237Snjlthe resource manager code. Originally reported against the ASL 8192114237Snjlcompiler because the code generator now optimizes integers to 8193193267Sjkimtheir minimal AML representation (i.e. AML constants if possible.) 8194126372SnjlThe _PRT code now handles all AML constant opcodes correctly 8195126372Snjl(Zero, One, Ones, Revision). 8196102550Siwasaki 8197102550SiwasakiFixed a problem with the Concatenate operator in the AML 8198193267Sjkiminterpreter where a buffer result object was incorrectly marked as 8199126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 8200102550Siwasaki 8201104470SiwasakiAll package sub-objects are now fully resolved before they are 8202114237Snjlreturned from the external ACPI interfaces. This means that name 8203114237Snjlstrings are resolved to object handles, and constant operators 8204114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 8205102550Siwasaki 8206102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 8207104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 8208104470Siwasakiwithin the AML stream. This has simplified and reduced the 8209104470Siwasakigenerated code size of the subsystem by eliminating about 10 8210104470Siwasakiswitch statements for these constants (which previously were 8211193267Sjkimcontained in Reference objects.) The complicating issues are that 8212126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 8213193267Sjkimoptional target operands and stores to constants are defined to be 8214126372Snjlno-ops. 8215102550Siwasaki 8216193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8217126372Snjlbelow. These are the code and data sizes for the acpica.lib 8218114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8219114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8220114237Snjlversion of the code includes the debug output trace mechanism and 8221193267Sjkimhas a larger code and data size. Note that these values will vary 8222126372Snjldepending on the efficiency of the compiler and the compiler 8223114237Snjloptions used during generation. 8224102550Siwasaki 8225102550Siwasaki Previous Release 8226104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 8227104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 8228102550Siwasaki Current Release: 8229104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 8230104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 8231102550Siwasaki 8232102550Siwasaki 8233102550Siwasaki2) Linux 8234102550Siwasaki 8235167802Sjkim 8236104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 8237104470Siwasakibridges (Bjorn Helgaas). 8238102550Siwasaki 8239102550Siwasaki 8240102550Siwasaki3) iASL Compiler Version X2046: 8241102550Siwasaki 8242193267SjkimFixed a problem where the "_DDN" reserved name was defined to be a 8243126372Snjlcontrol method with one argument. There are no arguments, and 8244114237Snjl_DDN does not have to be a control method. 8245102550Siwasaki 8246114237SnjlFixed a problem with the Linux version of the compiler where the 8247114237Snjlsource lines printed with error messages were the wrong lines. 8248114237SnjlThis turned out to be the "LF versus CR/LF" difference between 8249114237SnjlWindows and Unix. This appears to be the longstanding issue 8250114237Snjlconcerning listing output and error messages. 8251102550Siwasaki 8252114237SnjlFixed a problem with the Linux version of compiler where opcode 8253114237Snjlnames within error messages were wrong. This was caused by a 8254114237Snjlslight difference in the output of the Flex tool on Linux versus 8255114237SnjlWindows. 8256102550Siwasaki 8257193267SjkimFixed a problem with the Linux compiler where the hex output files 8258126372Snjlcontained some garbage data caused by an internal buffer overrun. 8259102550Siwasaki 8260102550Siwasaki 8261102550Siwasaki---------------------------------------- 8262102550Siwasaki17 May 2002. Summary of changes for this release. 8263102550Siwasaki 8264102550Siwasaki 8265102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 8266102550Siwasaki 8267102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 8268104470SiwasakiOmniBook where the FADT revision number and the table size are 8269193267Sjkiminconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new 8270126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 8271126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 8272126372Snjlby the revision number. Although this is a BIOS bug, this is a 8273126372Snjlcase where the workaround is simple enough and with no side 8274126372Snjleffects, so it seemed prudent to add it. A warning message is 8275126372Snjlissued, however. 8276102550Siwasaki 8277193267SjkimImplemented minimum size checks for the fixed-length ACPI tables - 8278126372Snjl- the FADT and FACS, as well as consistency checks between the 8279114237Snjlrevision number and the table size. 8280102550Siwasaki 8281114237SnjlFixed a reported problem in the table override support where the 8282114237Snjlnew table pointer was incorrectly treated as a physical address 8283114237Snjlinstead of a logical address. 8284102550Siwasaki 8285114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 8286114237Snjlwith more descriptive codes. 8287102550Siwasaki 8288193267SjkimFixed a problem where an exception would occur if an ASL Field was 8289126372Snjldefined with no named Field Units underneath it (used by some 8290114237Snjlindex fields). 8291102550Siwasaki 8292193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8293126372Snjlbelow. These are the code and data sizes for the acpica.lib 8294126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8295126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8296126372Snjlversion of the code includes the debug output trace mechanism and 8297193267Sjkimhas a larger code and data size. Note that these values will vary 8298126372Snjldepending on the efficiency of the compiler and the compiler 8299126372Snjloptions used during generation. 8300102550Siwasaki 8301102550Siwasaki Previous Release 8302104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 8303104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 8304102550Siwasaki Current Release: 8305104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 8306104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 8307102550Siwasaki 8308102550Siwasaki 8309102550Siwasaki 8310102550Siwasaki2) Linux 8311102550Siwasaki 8312114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 8313114237Snjl(Paul D. and Dominik Brodowski) 8314102550Siwasaki 8315102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 8316102550Siwasaki 8317102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 8318102550Siwasaki 8319102550SiwasakiFix "MHz" typo (Dominik Brodowski) 8320102550Siwasaki 8321102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 8322102550Siwasaki 8323102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 8324102550Siwasaki 8325102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 8326102550Siwasaki 8327102550Siwasaki3) iASL Compiler Version X2044: 8328102550Siwasaki 8329193267SjkimImplemented error checking for the string used in the EISAID macro 8330193267Sjkim(Usually used in the definition of the _HID object.) The code now 8331126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 8332126372Snjluppercase letters and 4 hex digits. 8333102550Siwasaki 8334102550SiwasakiIf a raw string is used in the definition of the _HID object 8335102550Siwasaki(instead of the EISAID macro), the string must contain all 8336114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 8337114237Snjlof the asterisk.) 8338102550Siwasaki 8339114237SnjlImplemented checking for invalid use of ACPI reserved names for 8340114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 8341114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 8342114237SnjlPreviously, this check was only performed for control methods. 8343102550Siwasaki 8344114237SnjlImplemented an additional check on the Name operator to emit an 8345114237Snjlerror if a reserved name that must be implemented in ASL as a 8346114237Snjlcontrol method is used. We know that a reserved name must be a 8347114237Snjlmethod if it is defined with input arguments. 8348102550Siwasaki 8349193267SjkimThe warning emitted when a namespace object reference is not found 8350126372Snjlduring the cross reference phase has been changed into an error. 8351193267SjkimThe "External" directive should be used for names defined in other 8352126372Snjlmodules. 8353102550Siwasaki 8354102550Siwasaki 8355102550Siwasaki4) Tools and Utilities 8356102550Siwasaki 8357114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 8358114237Snjltested. 8359102550Siwasaki 8360193267SjkimFixed a problem with the output of both acpidump and adump16 where 8361126372Snjlthe indentation of closing parentheses and brackets was not 8362167802Sjkim 8363114237Snjlaligned properly with the parent block. 8364102550Siwasaki 8365102550Siwasaki 8366102550Siwasaki---------------------------------------- 8367102550Siwasaki03 May 2002. Summary of changes for this release. 8368102550Siwasaki 8369102550Siwasaki 8370102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 8371102550Siwasaki 8372114237SnjlAdded support a new OSL interface that allows the host operating 8373167802Sjkim 8374114237Snjlsystem software to override the DSDT found in the firmware - 8375193267SjkimAcpiOsTableOverride. With this interface, the OSL can examine the 8376126372Snjlversion of the firmware DSDT and replace it with a different one 8377126372Snjlif desired. 8378102550Siwasaki 8379114237SnjlAdded new external interfaces for accessing ACPI registers from 8380114237Snjldevice drivers and other system software - AcpiGetRegister and 8381114237SnjlAcpiSetRegister. This was simply an externalization of the 8382114237Snjlexisting AcpiHwBitRegister interfaces. 8383102550Siwasaki 8384104470SiwasakiFixed a regression introduced in the previous build where the 8385104470SiwasakiASL/AML CreateField operator always returned an error, 8386102550Siwasaki"destination must be a NS Node". 8387102550Siwasaki 8388114237SnjlExtended the maximum time (before failure) to successfully enable 8389114237SnjlACPI mode to 3 seconds. 8390102550Siwasaki 8391193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8392126372Snjlbelow. These are the code and data sizes for the acpica.lib 8393126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8394126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8395126372Snjlversion of the code includes the debug output trace mechanism and 8396193267Sjkimhas a larger code and data size. Note that these values will vary 8397126372Snjldepending on the efficiency of the compiler and the compiler 8398126372Snjloptions used during generation. 8399102550Siwasaki 8400102550Siwasaki Previous Release 8401104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8402104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8403102550Siwasaki Current Release: 8404104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 8405104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 8406102550Siwasaki 8407102550Siwasaki 8408102550Siwasaki2) Linux 8409102550Siwasaki 8410104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 8411193267Sjkimfree. While 3 out of 4 of our in-house systems work fine, the last 8412126372Snjlone still hangs when testing the LAPIC timer. 8413102550Siwasaki 8414114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 8415114237Snjlname. 8416102550Siwasaki 8417102550SiwasakiAdded warning on boot for Presario 711FR. 8418102550Siwasaki 8419102550SiwasakiSleep improvements (Pavel Machek) 8420102550Siwasaki 8421102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 8422102550Siwasaki 8423102550SiwasakiIA64: Fixed memory map functions (JI Lee) 8424102550Siwasaki 8425102550Siwasaki 8426102550Siwasaki3) iASL Compiler Version X2043: 8427102550Siwasaki 8428114237SnjlAdded support to allow the compiler to be integrated into the MS 8429114237SnjlVC++ development environment for one-button compilation of single 8430114237Snjlfiles or entire projects -- with error-to-source-line mapping. 8431102550Siwasaki 8432104470SiwasakiImplemented support for compile-time constant folding for the 8433104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 8434104470Siwasakispecification. This allows the ASL writer to use expressions 8435104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 8436114237Snjlevaluate to constants at compile time and will also simplify the 8437114237Snjlemitted AML in any such sub-expressions that can be folded 8438104470Siwasaki(evaluated at compile-time.) This increases the size of the 8439104470Siwasakicompiler significantly because a portion of the ACPI CA AML 8440104470Siwasakiinterpreter is included within the compiler in order to pre- 8441104470Siwasakievaluate constant expressions. 8442102550Siwasaki 8443114237Snjl 8444102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 8445114237Snjlcompiler to fault. (This macro is used in conjunction with the 8446114237Snjl_STR reserved name.) 8447102550Siwasaki 8448114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 8449114237SnjlOnes opcodes where possible to further reduce the size of integer 8450114237Snjlconstants and thus reduce the overall size of the generated AML 8451114237Snjlcode. 8452102550Siwasaki 8453193267SjkimImplemented error checking for new reserved terms for ACPI version 8454126372Snjl2.0A. 8455102550Siwasaki 8456104470SiwasakiImplemented the -qr option to display the current list of ACPI 8457104470Siwasakireserved names known to the compiler. 8458102550Siwasaki 8459104470SiwasakiImplemented the -qc option to display the current list of ASL 8460104470Siwasakioperators that are allowed within constant expressions and can 8461193267Sjkimtherefore be folded at compile time if the operands are constants. 8462102550Siwasaki 8463102550Siwasaki 8464102550Siwasaki4) Documentation 8465102550Siwasaki 8466193267SjkimUpdated the Programmer's Reference for new interfaces, data types, 8467126372Snjland memory allocation model options. 8468102550Siwasaki 8469114237SnjlUpdated the iASL Compiler User Reference to apply new format and 8470114237Snjladd information about new features and options. 8471102550Siwasaki 8472102550Siwasaki---------------------------------------- 8473102550Siwasaki19 April 2002. Summary of changes for this release. 8474102550Siwasaki 8475102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 8476102550Siwasaki 8477114237SnjlThe source code base for the Core Subsystem has been completely 8478114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 8479114237Snjlversions. The Lint option files used are included in the 8480114237Snjl/acpi/generate/lint directory. 8481102550Siwasaki 8482102550SiwasakiImplemented enhanced status/error checking across the entire 8483114237SnjlHardware manager subsystem. Any hardware errors (reported from 8484114237Snjlthe OSL) are now bubbled up and will abort a running control 8485114237Snjlmethod. 8486102550Siwasaki 8487167802Sjkim 8488114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 8489114237Snjlwas stored only with control method nodes, causing a fault when 8490114237Snjlnon-control method code was executed during table loading. The 8491114237Snjlsolution implemented uses a global variable to indicate table 8492114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 8493114237Snjlnot support mixed integer widths across different ACPI tables 8494114237Snjl(DSDT, SSDT). 8495102550Siwasaki 8496114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 8497114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 8498114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 8499114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 8500193267SjkimACPI 2.0 X field is zero (even though the table revision indicates 8501193267Sjkima full ACPI 2.0 table.) The ACPI specification will be updated to 8502126372Snjlclarify this issue. 8503102550Siwasaki 8504104470SiwasakiFixed a problem with the SystemMemory operation region handler 8505104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 8506104470Siwasakispecified access width was larger than a byte. This caused 8507104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 8508193267Sjkimaccessed with the width specified. On systems that do not support 8509193267Sjkimnon-aligned transfers, a check is made to guarantee proper address 8510126372Snjlalignment before proceeding in order to avoid an AML-caused 8511126372Snjlalignment fault within the kernel. 8512102550Siwasaki 8513102550Siwasaki 8514114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 8515114237Snjlof the 4-byte Irq field was extracted. 8516102550Siwasaki 8517114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 8518114237Snjlfunction was out of date and required a rewrite. 8519114237Snjl 8520193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8521126372Snjlbelow. These are the code and data sizes for the acpica.lib 8522126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8523126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8524126372Snjlversion of the code includes the debug output trace mechanism and 8525193267Sjkimhas a larger code and data size. Note that these values will vary 8526126372Snjldepending on the efficiency of the compiler and the compiler 8527126372Snjloptions used during generation. 8528102550Siwasaki 8529102550Siwasaki Previous Release 8530104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8531104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8532102550Siwasaki Current Release: 8533104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8534104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8535102550Siwasaki 8536102550Siwasaki 8537102550Siwasaki2) Linux 8538102550Siwasaki 8539102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 8540102550Siwasaki 8541102550Siwasaki 8542102550Siwasaki3) iASL Compiler Version X2042: 8543102550Siwasaki 8544104470SiwasakiImplemented an additional compile-time error check for a field 8545104470Siwasakiunit whose size + minimum access width would cause a run-time 8546114237Snjlaccess beyond the end-of-region. Previously, only the field size 8547114237Snjlitself was checked. 8548102550Siwasaki 8549104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 8550104470Siwasakiobject in preparation for compile-time evaluation of the type 8551104470Siwasaki3/4/5 ASL operators. 8552102550Siwasaki 8553102550Siwasaki 8554102550Siwasaki---------------------------------------- 8555102550SiwasakiSummary of changes for this release: 03_29_02 8556102550Siwasaki 8557102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 8558102550Siwasaki 8559104470SiwasakiImplemented support for late evaluation of TermArg operands to 8560193267SjkimBuffer and Package objects. This allows complex expressions to be 8561126372Snjlused in the declarations of these object types. 8562102550Siwasaki 8563193267SjkimFixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI 8564126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 8565126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 8566193267Sjkimthe field is returned as a buffer only if the field is larger than 8567126372Snjl64 bits. The TableRevision is now considered when making this 8568126372Snjlconversion to avoid incompatibility with existing ASL code. 8569102550Siwasaki 8570104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 8571114237Snjlallows an RSDP with either a logical or physical address. With 8572114237Snjlthis support, the host OS can now override all ACPI tables with 8573114237Snjlone logical RSDP. Includes implementation of "typed" pointer 8574114237Snjlsupport to allow a common data type for both physical and logical 8575114237Snjlpointers internally. This required a change to the 8576114237SnjlAcpiOsGetRootPointer interface. 8577102550Siwasaki 8578193267SjkimImplemented the use of ACPI 2.0 Generic Address Structures for all 8579193267SjkimGPE, Fixed Event, and PM Timer I/O. This allows the use of memory 8580126372Snjlmapped I/O for these ACPI features. 8581102550Siwasaki 8582102550SiwasakiInitialization now ignores not only non-required tables (All 8583114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 8584114237Snjlnot validate the table headers of unrecognized tables. 8585102550Siwasaki 8586102550SiwasakiFixed a problem where a notify handler could only be 8587102550Siwasakiinstalled/removed on an object of type Device. All "notify" 8588167802Sjkim 8589102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 8590102550SiwasakiThermal. 8591102550Siwasaki 8592114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 8593193267Sjkimcritical information is returned when this debug level is enabled. 8594102550Siwasaki 8595193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8596126372Snjlbelow. These are the code and data sizes for the acpica.lib 8597126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8598126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8599126372Snjlversion of the code includes the debug output trace mechanism and 8600193267Sjkimhas a larger code and data size. Note that these values will vary 8601126372Snjldepending on the efficiency of the compiler and the compiler 8602126372Snjloptions used during generation. 8603102550Siwasaki 8604102550Siwasaki Previous Release 8605104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8606104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8607102550Siwasaki Current Release: 8608104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8609104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8610102550Siwasaki 8611102550Siwasaki 8612102550Siwasaki2) Linux: 8613102550Siwasaki 8614114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 8615114237Snjl2.0-based processor performance control (e.g. Intel(R) 8616114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 8617114237Snjlthe Intel "applet" interface are not supported through this. The 8618114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 8619114237Snjl[Note that basic policy for controlling performance state 8620114237Snjltransitions will be included in the next version of ospmd.] The 8621114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 8622114237Snjlerrata handling underwent a complete overhaul (big thanks to 8623114237SnjlDominik Brodowski). 8624102550Siwasaki 8625114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 8626114237Snjlbased devices in the ACPI namespace are now dynamically bound 8627114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 8628114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 8629114237Snjlsubordinate PCI bridges. 8630102550Siwasaki 8631104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 8632104470Siwasakientries defined underneath PCI bridges. 8633102550Siwasaki 8634104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 8635104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 8636102550Siwasaki 8637114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 8638114237Snjl(acpi.c, mpparse.c) -- stay tuned. 8639102550Siwasaki 8640102550SiwasakiAdded back visual differentiation between fixed-feature and 8641114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 8642114237Snjlbutton/power/PWRF) to simplify button identification. 8643102550Siwasaki 8644114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 8645114237Snjlany "_THIS_MODULE defined but not used" messages. 8646102550Siwasaki 8647102550SiwasakiCan now shut down the system using "magic sysrq" key. 8648102550Siwasaki 8649102550Siwasaki 8650102550Siwasaki3) iASL Compiler version 2041: 8651102550Siwasaki 8652104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 8653104470Siwasakiconstants were not reported. 8654102550Siwasaki 8655193267SjkimImplemented a fix for the General Register template Address field. 8656126372SnjlThis field was 8 bits when it should be 64. 8657102550Siwasaki 8658193267SjkimFixed a problem where errors/warnings were no longer being emitted 8659126372Snjlwithin the listing output file. 8660102550Siwasaki 8661114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 8662114237Snjlexactly 4 characters, alphanumeric only. 8663102550Siwasaki 8664102550Siwasaki 8665102550Siwasaki 8666102550Siwasaki 8667102550Siwasaki---------------------------------------- 8668102550SiwasakiSummary of changes for this release: 03_08_02 8669102550Siwasaki 8670102550Siwasaki 8671102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 8672102550Siwasaki 8673114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 8674193267Sjkimkeyword could cause an interpreter error due to attempting to read 8675126372Snjlor write beyond the end of the parent Operation Region. 8676102550Siwasaki 8677193267SjkimFixed a problem in the SystemMemory Operation Region handler where 8678126372Snjlan attempt was made to map memory beyond the end of the region. 8679126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 8680126372Snjlerrors on some Linux systems. 8681102550Siwasaki 8682114237SnjlFixed a problem where the interpreter/namespace "search to root" 8683114237Snjlalgorithm was not functioning for some object types. Relaxed the 8684114237Snjlinternal restriction on the search to allow upsearches for all 8685114237Snjlexternal object types as well as most internal types. 8686102550Siwasaki 8687102550Siwasaki 8688102550Siwasaki2) Linux: 8689102550Siwasaki 8690193267SjkimWe now use safe_halt() macro versus individual calls to sti | hlt. 8691102550Siwasaki 8692193267SjkimWriting to the processor limit interface should now work. "echo 1" 8693126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 8694167802Sjkim 8695126372Snjldefault. 8696102550Siwasaki 8697102550Siwasaki 8698102550Siwasaki3) ASL compiler: 8699102550Siwasaki 8700102550SiwasakiFixed segfault on Linux version. 8701102550Siwasaki 8702102550Siwasaki 8703102550Siwasaki---------------------------------------- 8704102550SiwasakiSummary of changes for this release: 02_25_02 8705102550Siwasaki 8706102550Siwasaki1) ACPI CA Core Subsystem: 8707102550Siwasaki 8708102550Siwasaki 8709102550SiwasakiFixed a problem where the GPE bit masks were not initialized 8710102550Siwasakiproperly, causing erratic GPE behavior. 8711102550Siwasaki 8712193267SjkimImplemented limited support for multiple calling conventions. The 8713126372Snjlcode can be generated with either the VPL (variable parameter 8714114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 8715114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 8716114237Snjlwhen generated with FPL. 8717102550Siwasaki 8718102550Siwasaki 8719102550Siwasaki2) Linux 8720102550Siwasaki 8721114237SnjlRe-add some /proc/acpi/event functionality that was lost during 8722114237Snjlthe rewrite 8723102550Siwasaki 8724193267SjkimResolved issue with /proc events for fixed-feature buttons showing 8725126372Snjlup as the system device. 8726102550Siwasaki 8727193267SjkimFixed checks on C2/C3 latencies to be inclusive of maximum values. 8728102550Siwasaki 8729114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 8730102550Siwasaki 8731114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 8732102550Siwasaki 8733104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 8734104470Siwasakihysterisis. 8735102550Siwasaki 8736102550SiwasakiRestructured PRT support. 8737102550Siwasaki 8738102550Siwasaki 8739102550Siwasaki---------------------------------------- 8740102550SiwasakiSummary of changes for this label: 02_14_02 8741102550Siwasaki 8742102550Siwasaki 8743102550Siwasaki1) ACPI CA Core Subsystem: 8744102550Siwasaki 8745114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 8746114237SnjlFADT tables. 8747102550Siwasaki 8748114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 8749193267Sjkimbeen removed. All 64-bit platforms should be migrated to the ACPI 8750193267Sjkim2.0 tables. The actbl71.h header has been removed from the source 8751126372Snjltree. 8752102550Siwasaki 8753114237SnjlAll C macros defined within the subsystem have been prefixed with 8754114237Snjl"ACPI_" to avoid collision with other system include files. 8755102550Siwasaki 8756193267SjkimRemoved the return value for the two AcpiOsPrint interfaces, since 8757126372Snjlit is never used and causes lint warnings for ignoring the return 8758126372Snjlvalue. 8759102550Siwasaki 8760104470SiwasakiAdded error checking to all internal mutex acquire and release 8761104470Siwasakicalls. Although a failure from one of these interfaces is 8762104470Siwasakiprobably a fatal system error, these checks will cause the 8763114237Snjlimmediate abort of the currently executing method or interface. 8764102550Siwasaki 8765114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 8766193267Sjkimfault. This was a side effect of the deployment of the new memory 8767126372Snjlallocation model. 8768102550Siwasaki 8769193267SjkimFixed a couple of problems with the Global Lock support introduced 8770193267Sjkimin the last major build. The "common" (1.0/2.0) internal FACS was 8771126372Snjlbeing overwritten with the FACS signature and clobbering the 8772126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 8773126372Snjlunmapped after construction of the "common" FACS, preventing 8774126372Snjlaccess to the actual Global Lock field within it. The "common" 8775126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 8776126372Snjlis used simply as a global. 8777102550Siwasaki 8778193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8779126372Snjlbelow. These are the code and data sizes for the acpica.lib 8780126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8781126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8782126372Snjlversion of the code includes the debug output trace mechanism and 8783193267Sjkimhas a larger code and data size. Note that these values will vary 8784126372Snjldepending on the efficiency of the compiler and the compiler 8785126372Snjloptions used during generation. 8786102550Siwasaki 8787102550Siwasaki Previous Release (02_07_01) 8788104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8789104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8790102550Siwasaki Current Release: 8791104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8792104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8793102550Siwasaki 8794102550Siwasaki 8795102550Siwasaki2) Linux 8796102550Siwasaki 8797102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 8798102550Siwasakichanges described above. 8799102550Siwasaki 8800114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 8801114237Snjlproper poll functionality. 8802102550Siwasaki 8803102550SiwasakiFixed and restructured power management (acpi_bus). 8804102550Siwasaki 8805193267SjkimOnly create /proc "view by type" when devices of that class exist. 8806102550Siwasaki 8807104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 8808102550Siwasaki 8809102550SiwasakiImproved thermal zone code. 8810102550Siwasaki 8811102550Siwasaki 8812102550Siwasaki3) ASL Compiler, version X2039: 8813102550Siwasaki 8814114237Snjl 8815114237SnjlImplemented the new compiler restriction on ASL String hex/octal 8816193267Sjkimescapes to non-null, ASCII values. An error results if an invalid 8817126372Snjlvalue is used. (This will require an ACPI 2.0 specification 8818126372Snjlchange.) 8819102550Siwasaki 8820193267SjkimAML object labels that are output to the optional C and ASM source 8821126372Snjlare now prefixed with both the ACPI table signature and table ID 8822126372Snjlto help guarantee uniqueness within a large BIOS project. 8823102550Siwasaki 8824102550Siwasaki 8825102550Siwasaki---------------------------------------- 8826102550SiwasakiSummary of changes for this label: 02_01_02 8827102550Siwasaki 8828102550Siwasaki1) ACPI CA Core Subsystem: 8829102550Siwasaki 8830114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 8831114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 8832114237Snjlother changes for ACPI 2.0 support are complete. With 8833193267Sjkimsimultaneous code and data optimizations throughout the subsystem, 8834126372SnjlACPI 2.0 support has been implemented with almost no additional 8835126372Snjlcost in terms of code and data size. 8836102550Siwasaki 8837114237SnjlImplemented a new mechanism for allocation of return buffers. If 8838114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 8839114237Snjlbe allocated on behalf of the caller. Consolidated all return 8840114237Snjlbuffer validation and allocation to a common procedure. Return 8841193267Sjkimbuffers will be allocated via the primary OSL allocation interface 8842193267Sjkimsince it appears that a separate pool is not needed by most users. 8843126372SnjlIf a separate pool is required for these buffers, the caller can 8844126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 8845102550Siwasaki 8846102550SiwasakiImplemented support for string operands within the DerefOf 8847102550Siwasakioperator. 8848102550Siwasaki 8849114237SnjlRestructured the Hardware and Event managers to be table driven, 8850114237Snjlsimplifying the source code and reducing the amount of generated 8851114237Snjlcode. 8852102550Siwasaki 8853102550SiwasakiSplit the common read/write low-level ACPI register bitfield 8854104470Siwasakiprocedure into a separate read and write, simplifying the code 8855104470Siwasakiconsiderably. 8856102550Siwasaki 8857114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 8858114237Snjlused only a handful of times and didn't have enough critical mass 8859193267Sjkimfor a separate interface. Replaced with a common calloc procedure 8860126372Snjlin the core. 8861102550Siwasaki 8862104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 8863104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 8864114237SnjlReorganized the GPE information and shrunk a large array that was 8865114237Snjloriginally large enough to hold info for all possible GPEs (256) 8866114237Snjlto simply large enough to hold all GPEs up to the largest GPE 8867114237Snjlnumber on the machine. 8868102550Siwasaki 8869114237SnjlFixed a reported problem with resource structure alignment on 64- 8870114237Snjlbit platforms. 8871102550Siwasaki 8872102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 8873102550Siwasakiinterfaces to not require any flags for the common case of 8874102550Siwasakienabling/disabling a GPE. 8875102550Siwasaki 8876104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 8877102550Siwasaki 8878114237SnjlMost TBDs in comments within the source code have been resolved 8879114237Snjland eliminated. 8880102550Siwasaki 8881167802Sjkim 8882102550SiwasakiFixed a problem in the interpreter where a standalone parent 8883102550Siwasakiprefix (^) was not handled correctly in the interpreter and 8884102550Siwasakidebugger. 8885102550Siwasaki 8886102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 8887102550Siwasaki 8888193267SjkimImplemented Field support in the ASL Load operator. This allows a 8889126372Snjltable to be loaded from a named field, in addition to loading a 8890114237Snjltable directly from an Operation Region. 8891102550Siwasaki 8892193267SjkimImplemented timeout and handle support in the external Global Lock 8893126372Snjlinterfaces. 8894102550Siwasaki 8895114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 8896193267Sjkimlonger being generated correctly during the dump of named objects. 8897102550Siwasaki 8898102550SiwasakiModified the AML debugger to give a full display of if/while 8899102550Siwasakipredicates instead of just one AML opcode at a time. (The 8900193267Sjkimpredicate can have several nested ASL statements.) The old method 8901126372Snjlwas confusing during single stepping. 8902102550Siwasaki 8903193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8904126372Snjlbelow. These are the code and data sizes for the acpica.lib 8905114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8906114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8907114237Snjlversion of the code includes the debug output trace mechanism and 8908193267Sjkimhas a larger code and data size. Note that these values will vary 8909126372Snjldepending on the efficiency of the compiler and the compiler 8910114237Snjloptions used during generation. 8911102550Siwasaki 8912102550Siwasaki Previous Release (12_18_01) 8913114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8914114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8915102550Siwasaki Current Release: 8916114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8917114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8918102550Siwasaki 8919102550Siwasaki2) Linux 8920102550Siwasaki 8921104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 8922104470Siwasakidriver) 8923102550Siwasaki 8924102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 8925102550Siwasaki 8926102550SiwasakiNew thermal policy (Thermal driver) 8927102550Siwasaki 8928102550SiwasakiMany updates to /proc 8929102550Siwasaki 8930102550SiwasakiBattery "low" event support (Battery driver) 8931102550Siwasaki 8932104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 8933102550Siwasaki 8934104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 8935102550Siwasaki 8936102550SiwasakiMenuconfig options redesigned 8937102550Siwasaki 8938102550Siwasaki3) ASL Compiler, version X2037: 8939102550Siwasaki 8940193267SjkimImplemented several new output features to simplify integration of 8941126372SnjlAML code into firmware: 1) Output the AML in C source code with 8942193267Sjkimlabels for each named ASL object. The original ASL source code 8943193267Sjkimis interleaved as C comments. 2) Output the AML in ASM source code 8944126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 8945126372Snjlraw hex table form, in either C or ASM. 8946102550Siwasaki 8947102550SiwasakiImplemented support for optional string parameters to the 8948102550SiwasakiLoadTable operator. 8949102550Siwasaki 8950104470SiwasakiCompleted support for embedded escape sequences within string 8951114237Snjlliterals. The compiler now supports all single character escapes 8952114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 8953114237Snjlnull byte into a string literal (via the hex/octal escape) causes 8954114237Snjlthe string to be immediately terminated. A warning is issued. 8955102550Siwasaki 8956104470SiwasakiFixed a problem where incorrect AML was generated for the case 8957104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 8958102550Siwasaki 8959102550Siwasaki) with no trailing name segments. 8960102550Siwasaki 8961102550SiwasakiThe compiler has been successfully generated with a 64-bit C 8962102550Siwasakicompiler. 8963102550Siwasaki 8964102550Siwasaki 8965102550Siwasaki 8966102550Siwasaki 8967102550Siwasaki---------------------------------------- 8968102550SiwasakiSummary of changes for this label: 12_18_01 8969102550Siwasaki 8970102550Siwasaki1) Linux 8971102550Siwasaki 8972114237SnjlEnhanced blacklist with reason and severity fields. Any table's 8973114237Snjlsignature may now be used to identify a blacklisted system. 8974102550Siwasaki 8975114237SnjlCall _PIC control method to inform the firmware which interrupt 8976114237Snjlmodel the OS is using. Turn on any disabled link devices. 8977102550Siwasaki 8978102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 8979102550Siwasaki 8980102550Siwasaki 2) ACPI CA Core Subsystem: 8981102550Siwasaki 8982193267SjkimImplemented ACPI 2.0 semantics for the "Break" operator (Exit from 8983126372Snjlwhile loop) 8984102550Siwasaki 8985102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 8986102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 8987193267Sjkimoperators. All new ACPI 2.0 operators are now implemented in both 8988193267Sjkimthe ASL compiler and the AML interpreter. The only remaining ACPI 8989126372Snjl2.0 task is support for the String data type in the DerefOf 8990193267Sjkimoperator. Fixed a problem with AcquireMutex where the status code 8991126372Snjlwas lost if the caller had to actually wait for the mutex. 8992102550Siwasaki 8993104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 8994102550Siwasaki 8995193267SjkimCompleted implementation of the external Global Lock interfaces -- 8996126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 8997126372SnjlHandler parameters were added. 8998102550Siwasaki 8999102550SiwasakiCompleted another pass at removing warnings and issues when 9000114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 9001114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 9002114237Snjladd and subtract (diff) macros have changed considerably. 9003102550Siwasaki 9004167802Sjkim 9005114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 9006114237Snjl64-bit platforms, 32-bits on all others. This type is used 9007193267Sjkimwherever memory allocation and/or the C sizeof() operator is used, 9008126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 9009126372Snjland AcpiOsCallocate. 9010102550Siwasaki 9011102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 9012102550Siwasaki 9013193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9014126372Snjlbelow. These are the code and data sizes for the acpica.lib 9015114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9016114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 9017114237Snjlversion of the code includes the debug output trace mechanism and 9018114237Snjlhas a larger code and data size. Note that these values will vary 9019114237Snjldepending on the efficiency of the compiler and the compiler 9020114237Snjloptions used during generation. 9021102550Siwasaki 9022102550Siwasaki Previous Release (12_05_01) 9023114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 9024114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 9025102550Siwasaki Current Release: 9026114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 9027114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 9028102550Siwasaki 9029102550Siwasaki 3) ASL Compiler, version X2034: 9030102550Siwasaki 9031114237SnjlNow checks for (and generates an error if detected) the use of a 9032114237SnjlBreak or Continue statement without an enclosing While statement. 9033102550Siwasaki 9034167802Sjkim 9035102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 9036102550Siwasakicompiler. 9037102550Siwasaki 9038102550Siwasaki ---------------------------------------- 9039102550SiwasakiSummary of changes for this label: 12_05_01 9040102550Siwasaki 9041102550Siwasaki 1) ACPI CA Core Subsystem: 9042102550Siwasaki 9043102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 9044104470Siwasakioperator creates a new copy of an object (and is also used to 9045193267Sjkimbypass the "implicit conversion" mechanism of the Store operator.) 9046102550Siwasaki 9047102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 9048102550Siwasakiimplemented. The change is that performing a SizeOf on a 9049114237Snjlreference object causes an automatic dereference of the object to 9050114237Snjltha actual value before the size is evaluated. This behavior was 9051114237Snjlundefined in ACPI 1.0. 9052102550Siwasaki 9053114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 9054114237Snjlhave been implemented. The interrupt polarity and mode are now 9055114237Snjlindependently set. 9056102550Siwasaki 9057114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 9058114237Snjlappearing in Package objects were not properly converted to 9059114237Snjlintegers when the internal Package was converted to an external 9060114237Snjlobject (via the AcpiEvaluateObject interface.) 9061102550Siwasaki 9062114237SnjlFixed a problem with the namespace object deletion mechanism for 9063114237Snjlobjects created by control methods. There were two parts to this 9064193267Sjkimproblem: 1) Objects created during the initialization phase method 9065193267Sjkimparse were not being deleted, and 2) The object owner ID mechanism 9066126372Snjlto track objects was broken. 9067102550Siwasaki 9068114237SnjlFixed a problem where the use of the ASL Scope operator within a 9069114237Snjlcontrol method would result in an invalid opcode exception. 9070102550Siwasaki 9071114237SnjlFixed a problem introduced in the previous label where the buffer 9072114237Snjllength required for the _PRT structure was not being returned 9073114237Snjlcorrectly. 9074102550Siwasaki 9075193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9076126372Snjlbelow. These are the code and data sizes for the acpica.lib 9077114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9078114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 9079114237Snjlversion of the code includes the debug output trace mechanism and 9080193267Sjkimhas a larger code and data size. Note that these values will vary 9081126372Snjldepending on the efficiency of the compiler and the compiler 9082114237Snjloptions used during generation. 9083102550Siwasaki 9084102550Siwasaki Previous Release (11_20_01) 9085114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 9086114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 9087102550Siwasaki 9088102550Siwasaki Current Release: 9089114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 9090114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 9091102550Siwasaki 9092102550Siwasaki 2) Linux: 9093102550Siwasaki 9094102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 9095102550Siwasaki 9096104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 9097114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 9098114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 9099114237Snjlentries are treated as if they were static (not yet 9100114237Snjlreconfigurable). Architecture- specific code to use this data is 9101114237Snjlabsent on IA32 but should be available shortly. 9102102550Siwasaki 9103114237SnjlChanged the initialization sequence to start the ACPI interpreter 9104114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 9105114237Snjlin init/main.c. This ordering is required to support PRT and 9106114237Snjlfacilitate other (future) enhancement. A side effect is that the 9107193267SjkimACPI bus driver and certain device drivers can no longer be loaded 9108126372Snjlas modules. 9109102550Siwasaki 9110104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 9111104470SiwasakiRouting support to be included without the ACPI Bus and other 9112104470Siwasakidevice drivers. 9113102550Siwasaki 9114102550Siwasaki 3) ASL Compiler, version X2033: 9115102550Siwasaki 9116102550SiwasakiFixed some issues with the use of the new CopyObject and 9117102550SiwasakiDataTableRegion operators. Both are fully functional. 9118102550Siwasaki 9119102550Siwasaki ---------------------------------------- 9120102550SiwasakiSummary of changes for this label: 11_20_01 9121102550Siwasaki 9122102550Siwasaki 20 November 2001. Summary of changes for this release. 9123102550Siwasaki 9124102550Siwasaki 1) ACPI CA Core Subsystem: 9125102550Siwasaki 9126104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 9127193267SjkimInteger, String, or Buffer to an Index of a Buffer will store only 9128126372Snjlthe least-significant byte of the source to the Indexed buffer 9129126372Snjlbyte. Multiple writes are not performed. 9130102550Siwasaki 9131104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 9132104470Siwasakioperator was not recorded correctly into the field object. 9133102550Siwasaki 9134102550SiwasakiFixed a problem where ASL Event objects were created in a 9135114237Snjlsignalled state. Events are now created in an unsignalled state. 9136102550Siwasaki 9137114237SnjlThe internal object cache is now purged after table loading and 9138114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 9139114237Snjlthe assumption that object use is greatest during the parse phase 9140193267Sjkimof the entire table (versus the run-time use of individual control 9141126372Snjlmethods.) 9142102550Siwasaki 9143102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 9144102550Siwasaki 9145193267SjkimCode and Data Size: Code and Data optimizations have permitted new 9146126372Snjlfeature development with an actual reduction in the library size. 9147126372SnjlCurrent core subsystem library sizes are shown below. These are 9148126372Snjlthe code and data sizes for the acpica.lib produced by the 9149193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9150126372Snjlany ACPI driver or OSPM code. The debug version of the code 9151126372Snjlincludes the debug output trace mechanism and has a larger code 9152126372Snjland data size. Note that these values will vary depending on the 9153126372Snjlefficiency of the compiler and the compiler options used during 9154126372Snjlgeneration. 9155102550Siwasaki 9156102550Siwasaki Previous Release (11_09_01): 9157114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 9158114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 9159102550Siwasaki 9160102550Siwasaki Current Release: 9161114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 9162114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 9163102550Siwasaki 9164102550Siwasaki 2) Linux: 9165102550Siwasaki 9166114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 9167114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 9168114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 9169114237Snjlnear future. This functionality replaces 9170114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 9171114237Snjl2.4.15-preX release. To enable this feature you must add 9172114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 9173193267Sjkimfor CONFIG_ACPI_BOOT for more information. An IA-64 release is in 9174126372Snjlthe works... 9175102550Siwasaki 9176114237SnjlRestructured the configuration options to allow boot-time table 9177114237Snjlparsing support without inclusion of the ACPI Interpreter (and 9178114237Snjlother) code. 9179102550Siwasaki 9180193267SjkimNOTE: This release does not include fixes for the reported events, 9181126372Snjlpower-down, and thermal passive cooling issues (coming soon). 9182102550Siwasaki 9183102550Siwasaki 3) ASL Compiler: 9184102550Siwasaki 9185114237SnjlAdded additional typechecking for Fields within restricted access 9186114237SnjlOperation Regions. All fields within EC and CMOS regions must be 9187114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 9188114237Snjldeclared with the BufferAcc access type. 9189102550Siwasaki 9190114237SnjlFixed a problem where the listing file output of control methods 9191114237Snjlno longer interleaved the actual AML code with the ASL source 9192114237Snjlcode. 9193102550Siwasaki 9194102550Siwasaki 9195102550Siwasaki 9196167802Sjkim 9197102550Siwasaki---------------------------------------- 9198102550SiwasakiSummary of changes for this label: 11_09_01 9199102550Siwasaki 9200102550Siwasaki1) ACPI CA Core Subsystem: 9201102550Siwasaki 9202114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 9203193267SjkimBuffer, String, or Integer source operand that is smaller than the 9204126372Snjltarget field. In these cases, the source operand is zero-extended 9205126372Snjlto fill the target field. 9206102550Siwasaki 9207104470SiwasakiFixed a problem where a Field starting bit offset (within the 9208104470Siwasakiparent operation region) was calculated incorrectly if the 9209167802Sjkim 9210104470Siwasakialignment of the field differed from the access width. This 9211114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 9212114237Snjlpossibly other fields that use the "AccessAny" keyword. 9213102550Siwasaki 9214114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 9215114237Snjlstores through method arguments did not operate correctly. 9216102550Siwasaki 9217102550Siwasaki2) Linux: 9218102550Siwasaki 9219102550SiwasakiImplemented boot-time ACPI table parsing support 9220114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 9221114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 9222114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 9223193267Sjkimprocessors, memory, and interrupts during setup_arch(). Note that 9224126372Snjlthis patch does not include the required architecture-specific 9225126372Snjlchanges required to apply this information -- subsequent patches 9226126372Snjlwill be posted for both IA32 and IA64 to achieve this. 9227102550Siwasaki 9228114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 9229114237SnjlMochel. This allows IA32 systems to transition to/from various 9230114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 9231114237Snjldriver model and power-manageable drivers will prevent its 9232114237Snjl(successful) use on most systems. 9233102550Siwasaki 9234114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 9235193267Sjkimsubmenu, unified IA32 and IA64 options, added new "Boot using ACPI 9236126372Snjltables" option, etc. 9237102550Siwasaki 9238114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 9239114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 9240114237Snjltransactions. 9241102550Siwasaki 9242102550Siwasaki ---------------------------------------- 9243102550SiwasakiSummary of changes for this label: 11_02_01 9244102550Siwasaki 9245102550Siwasaki1) ACPI CA Core Subsystem: 9246102550Siwasaki 9247102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 9248102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 9249102550Siwasakiimplemented. 9250102550Siwasaki 9251114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 9252114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 9253193267SjkimPciConfiguration(), Read/Write Memory(), and Read/Write Port() now 9254126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 9255193267Sjkimthe value parameter for the address space handler interface is now 9256193267Sjkiman ACPI_INTEGER. OSL implementations of these interfaces must now 9257126372Snjlhandle the case where the Width parameter is 64. 9258102550Siwasaki 9259104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 9260104470Siwasakidisassembly for IndexFields was not supported correctly. 9261102550Siwasaki 9262102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 9263104470Siwasakisupported. During field access, a check is performed to ensure 9264114237Snjlthat the value written to an Index or Bank register is not out of 9265114237Snjlthe range of the register. The Index (or Bank) register is 9266114237Snjlwritten before each access to the field data. Future support will 9267114237Snjlinclude allowing individual IndexFields to be wider than the 9268114237SnjlDataRegister width. 9269102550Siwasaki 9270114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 9271114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 9272114237Snjla boundary case that occurred when a DWORD field was written to a 9273114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 9274114237Snjlinterpreter to write one datum too many. 9275102550Siwasaki 9276102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 9277114237Snjlstarting bit address of a field was incorrectly calculated if the 9278114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 9279114237SnjlQwordAcc). 9280102550Siwasaki 9281104470SiwasakiFields: Fixed a problem where forward references to individual 9282193267SjkimFieldUnits (individual Field names within a Field definition) were 9283126372Snjlnot resolved during the AML table load. 9284102550Siwasaki 9285104470SiwasakiFields: Fixed a problem where forward references from a Field 9286104470Siwasakidefinition to the parent Operation Region definition were not 9287104470Siwasakiresolved during the AML table load. 9288104470Siwasaki 9289114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 9290114237Snjlduring AML table load. 9291102550Siwasaki 9292193267SjkimAcpi Interfaces: Fixed a problem where the AcpiGetName() interface 9293126372Snjlreturned an incorrect name for the root node. 9294102550Siwasaki 9295193267SjkimCode and Data Size: Code and Data optimizations have permitted new 9296126372Snjlfeature development with an actual reduction in the library size. 9297126372SnjlCurrent core subsystem library sizes are shown below. These are 9298126372Snjlthe code and data sizes for the acpica.lib produced by the 9299193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9300126372Snjlany ACPI driver or OSPM code. The debug version of the code 9301126372Snjlincludes the debug output trace mechanism and has a larger code 9302126372Snjland data size. Note that these values will vary depending on the 9303126372Snjlefficiency of the compiler and the compiler options used during 9304126372Snjlgeneration. 9305102550Siwasaki 9306102550Siwasaki Previous Release (10_18_01): 9307114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 9308114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 9309102550Siwasaki 9310102550Siwasaki Current Release: 9311114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 9312114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 9313102550Siwasaki 9314102550Siwasaki 2) Linux: 9315102550Siwasaki 9316102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 9317102550SiwasakiMODULE_LICENSE("GPL") to all modules. 9318102550Siwasaki 9319102550Siwasaki 3) ASL Compiler version X2030: 9320102550Siwasaki 9321104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 9322104470Siwasakiflagged as errors. 9323102550Siwasaki 9324102550Siwasaki 4) Documentation: 9325102550Siwasaki 9326104470SiwasakiProgrammer Reference updated to reflect OSL and address space 9327104470Siwasakihandler interface changes described above. 9328102550Siwasaki 9329102550Siwasaki---------------------------------------- 9330102550SiwasakiSummary of changes for this label: 10_18_01 9331102550Siwasaki 9332102550SiwasakiACPI CA Core Subsystem: 9333102550Siwasaki 9334193267SjkimFixed a problem with the internal object reference count mechanism 9335126372Snjlthat occasionally caused premature object deletion. This resolves 9336126372Snjlall of the outstanding problem reports where an object is deleted 9337193267Sjkimin the middle of an interpreter evaluation. Although this problem 9338126372Snjlonly showed up in rather obscure cases, the solution to the 9339126372Snjlproblem involved an adjustment of all reference counts involving 9340126372Snjlobjects attached to namespace nodes. 9341102550Siwasaki 9342102550SiwasakiFixed a problem with Field support in the interpreter where 9343114237Snjlwriting to an aligned field whose length is an exact multiple (2 9344193267Sjkimor greater) of the field access granularity would cause an attempt 9345126372Snjlto write beyond the end of the field. 9346102550Siwasaki 9347102550SiwasakiThe top level AML opcode execution functions within the 9348102550Siwasakiinterpreter have been renamed with a more meaningful and 9349102550Siwasakiconsistent naming convention. The modules exmonad.c and 9350102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 9351102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 9352102550Siwasaki 9353114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 9354102550Siwasaki 9355114237SnjlFixed a problem where the AML debugger was causing some internal 9356114237Snjlobjects to not be deleted during subsystem termination. 9357102550Siwasaki 9358104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 9359104470Siwasakiwhere the subsystem would fault if the named object to be 9360104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 9361102550Siwasaki 9362102550SiwasakiFixed a problem with IndexFields and BankFields where the 9363114237Snjlsubsystem would fault if the index, data, or bank registers were 9364114237Snjlnot defined in the same scope as the field itself. 9365102550Siwasaki 9366104470SiwasakiAdded printf format string checking for compilers that support 9367104470Siwasakithis feature. Corrected more than 50 instances of issues with 9368104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 9369104470Siwasakithroughout the core subsystem code. 9370102550Siwasaki 9371104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 9372193267Sjkimimplemented in the core - the value "2" since the ACPI 2.0 support 9373126372Snjlis more than 50% implemented. 9374102550Siwasaki 9375114237SnjlEnhanced the output of the AML debugger "dump namespace" command 9376114237Snjlto output in a more human-readable form. 9377102550Siwasaki 9378114237SnjlCurrent core subsystem library code sizes are shown below. These 9379167802Sjkim 9380114237Snjlare the code and data sizes for the acpica.lib produced by the 9381193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9382126372Snjlany ACPI driver or OSPM code. The debug version of the code 9383126372Snjlincludes the full debug trace mechanism -- leading to a much 9384167802Sjkim 9385114237Snjllarger code and data size. Note that these values will vary 9386114237Snjldepending on the efficiency of the compiler and the compiler 9387114237Snjloptions used during generation. 9388102550Siwasaki 9389102550Siwasaki Previous Label (09_20_01): 9390114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 9391114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 9392102550Siwasaki 9393102550Siwasaki This Label: 9394102550Siwasaki 9395114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 9396114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 9397114237Snjl 9398102550SiwasakiLinux: 9399102550Siwasaki 9400104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 9401104470Siwasakiknown ASL/AML problems. 9402102550Siwasaki 9403193267SjkimEnhanced the /proc interface for the thermal zone driver and added 9404126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 9405193267Sjkimfile now includes threshold/policy information, and allows setting 9406126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 9407193267Sjkimto the 'info' file. Examples: "echo tzp=5 > info" sets the polling 9408126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 9409126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 9410102550Siwasaki 9411104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 9412104470Siwasakiwhen loading the control method battery driver. 9413102550Siwasaki 9414102550Siwasaki ---------------------------------------- 9415102550SiwasakiSummary of changes for this label: 09_20_01 9416102550Siwasaki 9417102550Siwasaki ACPI CA Core Subsystem: 9418102550Siwasaki 9419104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 9420104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 9421114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 9422114237Snjlsleeps.) 9423102550Siwasaki 9424104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 9425104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 9426104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 9427104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 9428102550Siwasaki 9429114237SnjlA local double-precision divide/modulo module has been added to 9430114237Snjlenhance portability to OS kernels where a 64-bit math library is 9431114237Snjlnot available. The new module is "utmath.c". 9432102550Siwasaki 9433104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 9434114237Snjlstack. Originally over 2K, the maximum stack usage is now below 9435114237Snjl2K at 1860 bytes (1.82k) 9436102550Siwasaki 9437114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 9438193267Sjkimroot table pointer was not mapped into a logical address properly. 9439102550Siwasaki 9440193267SjkimFixed a problem where a NULL pointer was being dereferenced in the 9441126372Snjlinterpreter code for the ASL Notify operator. 9442102550Siwasaki 9443102550SiwasakiFixed a problem where the use of the ASL Revision operator 9444114237Snjlreturned an error. This operator now returns the current version 9445114237Snjlof the ACPI CA core subsystem. 9446102550Siwasaki 9447114237SnjlFixed a problem where objects passed as control method parameters 9448114237Snjlto AcpiEvaluateObject were always deleted at method termination. 9449114237SnjlHowever, these objects may end up being stored into the namespace 9450114237Snjlby the called method. The object reference count mechanism was 9451114237Snjlapplied to these objects instead of a force delete. 9452102550Siwasaki 9453114237SnjlFixed a problem where static strings or buffers (contained in the 9454114237SnjlAML code) that are declared as package elements within the ASL 9455114237Snjlcode could cause a fault because the interpreter would attempt to 9456114237Snjldelete them. These objects are now marked with the "static 9457114237Snjlobject" flag to prevent any attempt to delete them. 9458102550Siwasaki 9459114237SnjlImplemented an interpreter optimization to use operands directly 9460114237Snjlfrom the state object instead of extracting the operands to local 9461114237Snjlvariables. This reduces stack use and code size, and improves 9462114237Snjlperformance. 9463102550Siwasaki 9464193267SjkimThe module exxface.c was eliminated as it was an unnecessary extra 9465126372Snjllayer of code. 9466102550Siwasaki 9467114237SnjlCurrent core subsystem library code sizes are shown below. These 9468114237Snjlare the code and data sizes for the acpica.lib produced by the 9469193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9470126372Snjlany ACPI driver or OSPM code. The debug version of the code 9471126372Snjlincludes the full debug trace mechanism -- leading to a much 9472114237Snjllarger code and data size. Note that these values will vary 9473114237Snjldepending on the efficiency of the compiler and the compiler 9474114237Snjloptions used during generation. 9475102550Siwasaki 9476102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 9477114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 9478114237SnjlTotal (Previously 195K) 9479102550Siwasaki 9480102550SiwasakiLinux: 9481102550Siwasaki 9482114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 9483114237SnjlInteger objects are now 64 bits wide 9484102550Siwasaki 9485114237SnjlAll Acpi data types and structures are now in lower case. Only 9486114237SnjlAcpi macros are upper case for differentiation. 9487102550Siwasaki 9488102550Siwasaki Documentation: 9489102550Siwasaki 9490102550SiwasakiChanges to the external interfaces as described above. 9491102550Siwasaki 9492102550Siwasaki ---------------------------------------- 9493102550SiwasakiSummary of changes for this label: 08_31_01 9494102550Siwasaki 9495102550Siwasaki ACPI CA Core Subsystem: 9496102550Siwasaki 9497114237SnjlA bug with interpreter implementation of the ASL Divide operator 9498114237Snjlwas found and fixed. The implicit function return value (not the 9499114237Snjlexplicit store operands) was returning the remainder instead of 9500114237Snjlthe quotient. This was a longstanding bug and it fixes several 9501114237Snjlknown outstanding issues on various platforms. 9502102550Siwasaki 9503104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 9504193267Sjkimbeen further optimized for size. There are 700 invocations of the 9505126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 9506126372Snjlthe debug version of the subsystem significantly. 9507102550Siwasaki 9508114237SnjlA stack trace mechanism has been implemented. The maximum stack 9509193267Sjkimusage is about 2K on 32-bit platforms. The debugger command "stat 9510126372Snjlstack" will display the current maximum stack usage. 9511102550Siwasaki 9512114237SnjlAll public symbols and global variables within the subsystem are 9513114237Snjlnow prefixed with the string "Acpi". This keeps all of the 9514114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 9515114237Snjlwith other kernel subsystems. 9516102550Siwasaki 9517114237SnjlMost of the internal fixed lookup tables have been moved into the 9518114237Snjlcode segment via the const operator. 9519102550Siwasaki 9520104470SiwasakiSeveral enhancements have been made to the interpreter to both 9521104470Siwasakireduce the code size and improve performance. 9522102550Siwasaki 9523114237SnjlCurrent core subsystem library code sizes are shown below. These 9524114237Snjlare the code and data sizes for the acpica.lib produced by the 9525193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9526126372Snjlany ACPI driver or OSPM code. The debug version of the code 9527126372Snjlincludes the full debug trace mechanism which contains over 700 9528126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 9529126372Snjlinvocations, and over 900 function exit macro invocations -- 9530126372Snjlleading to a much larger code and data size. Note that these 9531114237Snjlvalues will vary depending on the efficiency of the compiler and 9532114237Snjlthe compiler options used during generation. 9533102550Siwasaki 9534102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 9535102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 9536102550Siwasaki 9537102550Siwasaki Linux: 9538102550Siwasaki 9539104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 9540102550Siwasaki 9541102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 9542102550Siwasaki 9543102550Siwasaki ASL Compiler, version X2026: 9544102550Siwasaki 9545104470SiwasakiFixed a problem introduced in the previous label where the AML 9546167802Sjkim 9547104470Siwasakicode emitted for package objects produced packages with zero 9548104470Siwasakilength. 9549102550Siwasaki 9550102550Siwasaki ---------------------------------------- 9551102550SiwasakiSummary of changes for this label: 08_16_01 9552102550Siwasaki 9553102550SiwasakiACPI CA Core Subsystem: 9554102550Siwasaki 9555114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 9556114237SnjlAML interpreter (These are already supported by the Intel ASL 9557193267Sjkimcompiler): ToDecimalString, ToHexString, ToString, ToInteger, and 9558126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 9559126372SnjlAML parser, debugger, and disassembler. 9560102550Siwasaki 9561114237SnjlThe internal memory tracking mechanism (leak detection code) has 9562114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 9563114237Snjlblock is no longer allocated for each memory allocation), and now 9564114237Snjlsupports all of the internal object caches. 9565102550Siwasaki 9566114237SnjlThe data structures and code for the internal object caches have 9567114237Snjlbeen coelesced and optimized so that there is a single cache and 9568114237Snjlmemory list data structure and a single group of functions that 9569114237Snjlimplement generic cache management. This has reduced the code 9570114237Snjlsize in both the debug and release versions of the subsystem. 9571102550Siwasaki 9572193267SjkimThe DEBUG_PRINT macro(s) have been optimized for size and replaced 9573126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 9574126372Snjldifferent, because it generates a single call to an internal 9575126372Snjlfunction. This results in a savings of about 90 bytes per 9576193267Sjkiminvocation, resulting in an overall code and data savings of about 9577126372Snjl16% in the debug version of the subsystem. 9578102550Siwasaki 9579102550Siwasaki Linux: 9580102550Siwasaki 9581114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 9582114237Snjlmachines. 9583102550Siwasaki 9584102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 9585102550Siwasaki 9586102550SiwasakiFurther tweaked source code Linuxization. 9587102550Siwasaki 9588102550SiwasakiOther minor fixes. 9589102550Siwasaki 9590102550Siwasaki ASL Compiler: 9591102550Siwasaki 9592114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 9593102550Siwasaki 9594114237SnjlFixed a problem where the optional length parameter for the ACPI 9595114237Snjl2.0 ToString operator. 9596102550Siwasaki 9597114237SnjlFixed multiple extraneous error messages when a syntax error is 9598114237Snjldetected within the declaration line of a control method. 9599102550Siwasaki 9600102550Siwasaki ---------------------------------------- 9601102550SiwasakiSummary of changes for this label: 07_17_01 9602102550Siwasaki 9603102550SiwasakiACPI CA Core Subsystem: 9604102550Siwasaki 9605104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 9606193267SjkimACPI table via the ACPI signature. The interface can be called at 9607126372Snjlany time during kernel initialization, even before the kernel 9608193267Sjkimvirtual memory manager is initialized and paging is enabled. This 9609126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 9610126372Snjlbefore the ACPI CA subsystem is initialized. 9611102550Siwasaki 9612104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 9613104470Siwasakicould be resolved to the incorrect address under the following 9614114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 9615114237Snjlparent operation region is not defined on a DWORD boundary. 9616102550Siwasaki 9617114237SnjlFixed a problem where the interpreter is not being locked during 9618114237Snjlnamespace initialization (during execution of the _INI control 9619114237Snjlmethods), causing an error when an attempt is made to release it 9620114237Snjllater. 9621102550Siwasaki 9622104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 9623114237Snjlongoing throughout the rest of this year. In this label, The Mod 9624114237Snjloperator is implemented. 9625102550Siwasaki 9626102550SiwasakiAdded a new data type to contain full PCI addresses named 9627193267SjkimACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device, 9628126372Snjland Function values. 9629102550Siwasaki 9630102550Siwasaki Linux: 9631102550Siwasaki 9632102550SiwasakiEnhanced the Linux version of the source code to change most 9633102550Siwasakicapitalized ACPI type names to lowercase. For example, all 9634114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 9635114237Snjlresult in a large diff, but the change is strictly cosmetic and 9636114237Snjlaligns the CA code closer to the Linux coding standard. 9637102550Siwasaki 9638102550SiwasakiOSL Interfaces: 9639102550Siwasaki 9640193267SjkimThe interfaces to the PCI configuration space have been changed to 9641193267Sjkimadd the PCI Segment number and to split the single 32-bit combined 9642126372SnjlDeviceFunction field into two 16-bit fields. This was 9643114237Snjlaccomplished by moving the four values that define an address in 9644114237SnjlPCI configuration space (segment, bus, device, and function) to 9645114237Snjlthe new ACPI_PCI_ID structure. 9646102550Siwasaki 9647104470SiwasakiThe changes to the PCI configuration space interfaces led to a 9648104470Siwasakireexamination of the complete set of address space access 9649114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 9650114237Snjlinterfaces have proven difficult to maintain (any small change 9651193267Sjkimmust be propagated across at least 6 interfaces) and do not easily 9652193267Sjkimallow for future expansion to 64 bits if necessary. Also, on some 9653126372Snjlsystems, it would not be appropriate to demultiplex the access 9654126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 9655114237Snjlcorresponding native OS interfaces contain a similar access width 9656114237Snjlparameter. For these reasons, the 18 address space interfaces 9657114237Snjlhave been replaced by these 6 new ones: 9658102550Siwasaki 9659102550SiwasakiAcpiOsReadPciConfiguration 9660102550SiwasakiAcpiOsWritePciConfiguration 9661102550SiwasakiAcpiOsReadMemory 9662102550SiwasakiAcpiOsWriteMemory 9663102550SiwasakiAcpiOsReadPort 9664102550SiwasakiAcpiOsWritePort 9665102550Siwasaki 9666114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 9667114237Snjlto perform the platform and/or OS-specific actions necessary to 9668114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 9669114237Snjlinterface will simply call down to the CA core to perform the low- 9670114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 9671114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 9672167802Sjkim 9673114237Snjlremain OS and platform independent. 9674102550Siwasaki 9675104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 9676114237Snjl"function code and pointer" interface for various miscellaneous 9677114237Snjlsignals and notifications that must be made to the host OS. The 9678114237Snjlfirst such signals are intended to support the ASL Fatal and 9679114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 9680114237Snjlinterface has been obsoleted. 9681102550Siwasaki 9682102550SiwasakiThe definition of the AcpiFormatException interface has been 9683114237Snjlchanged to simplify its use. The caller no longer must supply a 9684114237Snjlbuffer to the call; A pointer to a const string is now returned 9685114237Snjldirectly. This allows the call to be easily used in printf 9686114237Snjlstatements, etc. since the caller does not have to manage a local 9687114237Snjlbuffer. 9688102550Siwasaki 9689114237Snjl 9690102550Siwasaki ASL Compiler, Version X2025: 9691102550Siwasaki 9692114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 9693114237Snjland are fully functional. They will work with all ACPI 1.0 9694193267Sjkiminterpreters, since the operators are simply translated to If/Else 9695126372Snjlpairs. 9696102550Siwasaki 9697104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 9698104470Siwasakiwith 1.0 interpreters, for the same reason. 9699102550Siwasaki 9700114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 9701114237Snjlpackages have a separate opcode, and their size is determined by 9702114237Snjlthe interpreter at run-time. 9703102550Siwasaki 9704193267SjkimDocumentation The ACPI CA Programmer Reference has been updated to 9705126372Snjlreflect the new interfaces and changes to existing interfaces. 9706102550Siwasaki 9707102550Siwasaki ------------------------------------------ 9708102550SiwasakiSummary of changes for this label: 06_15_01 9709102550Siwasaki 9710102550Siwasaki ACPI CA Core Subsystem: 9711102550Siwasaki 9712102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 9713114237Snjlobject would get its byte address inadvertently rounded down to 9714114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 9715102550Siwasaki 9716102550Siwasaki ASL Compiler, version X2024: 9717102550Siwasaki 9718114237SnjlFixed a problem where the Switch() operator would either fault or 9719114237Snjlhang the compiler. Note however, that the AML code for this ACPI 9720114237Snjl2.0 operator is not yet implemented. 9721102550Siwasaki 9722114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 9723114237Snjltimings. 9724102550Siwasaki 9725114237SnjlImplementation of the CreateField operator automatically converts 9726114237Snjla reference to a named field within a resource descriptor from a 9727114237Snjlbyte offset to a bit offset if required. 9728102550Siwasaki 9729102550SiwasakiAdded some missing named fields from the resource descriptor 9730193267Sjkimsupport. These are the names that are automatically created by the 9731126372Snjlcompiler to reference fields within a descriptor. They are only 9732126372Snjlvalid at compile time and are not passed through to the AML 9733114237Snjlinterpreter. 9734102550Siwasaki 9735104470SiwasakiResource descriptor named fields are now typed as Integers and 9736104470Siwasakisubject to compile-time typechecking when used in expressions. 9737102550Siwasaki 9738102550Siwasaki ------------------------------------------ 9739102550SiwasakiSummary of changes for this label: 05_18_01 9740102550Siwasaki 9741102550Siwasaki ACPI CA Core Subsystem: 9742102550Siwasaki 9743114237SnjlFixed a couple of problems in the Field support code where bits 9744193267Sjkimfrom adjacent fields could be returned along with the proper field 9745126372Snjlbits. Restructured the field support code to improve performance, 9746126372Snjlreadability and maintainability. 9747102550Siwasaki 9748114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 9749114237Snjlinto the output, saving hundreds of copies of procedure name 9750114237Snjlstrings within the source, shrinking the memory footprint of the 9751114237Snjldebug version of the core subsystem. 9752102550Siwasaki 9753102550Siwasaki Source Code Structure: 9754102550Siwasaki 9755104470SiwasakiThe source code directory tree was restructured to reflect the 9756114237Snjlcurrent organization of the component architecture. Some files 9757114237Snjland directories have been moved and/or renamed. 9758102550Siwasaki 9759102550Siwasaki Linux: 9760102550Siwasaki 9761102550SiwasakiFixed leaking kacpidpc processes. 9762102550Siwasaki 9763102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 9764102550Siwasakiopened. 9765102550Siwasaki 9766102550Siwasaki ASL Compiler, version X2020: 9767102550Siwasaki 9768114237SnjlMemory allocation performance enhancement - over 24X compile time 9769114237Snjlimprovement on large ASL files. Parse nodes and namestring 9770114237Snjlbuffers are now allocated from a large internal compiler buffer. 9771102550Siwasaki 9772102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 9773102550Siwasakispecified 9774102550Siwasaki 9775193267SjkimThe "-d" debug output option now sends all output to the .DBG file 9776126372Snjlinstead of the console. 9777102550Siwasaki 9778102550Siwasaki"External" second parameter is now optional 9779102550Siwasaki 9780102550Siwasaki"ElseIf" syntax now properly allows the predicate 9781102550Siwasaki 9782102550SiwasakiLast operand to "Load" now recognized as a Target operand 9783102550Siwasaki 9784102550SiwasakiDebug object can now be used anywhere as a normal object. 9785102550Siwasaki 9786102550SiwasakiResourceTemplate now returns an object of type BUFFER 9787102550Siwasaki 9788102550SiwasakiEISAID now returns an object of type INTEGER 9789102550Siwasaki 9790102550Siwasaki"Index" now works with a STRING operand 9791102550Siwasaki 9792102550Siwasaki"LoadTable" now accepts optional parameters 9793102550Siwasaki 9794102550Siwasaki"ToString" length parameter is now optional 9795102550Siwasaki 9796102550Siwasaki"Interrupt (ResourceType," parse error fixed. 9797102550Siwasaki 9798104470Siwasaki"Register" with a user-defined region space parse error fixed 9799102550Siwasaki 9800114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 9801114237Snjlfixed 9802102550Siwasaki 9803102550Siwasaki"Revision" is now an object of type INTEGER. 9804102550Siwasaki 9805102550Siwasaki 9806102550Siwasaki 9807102550Siwasaki------------------------------------------ 9808102550SiwasakiSummary of changes for this label: 05_02_01 9809102550Siwasaki 9810102550SiwasakiLinux: 9811102550Siwasaki 9812102550Siwasaki/proc/acpi/event now blocks properly. 9813102550Siwasaki 9814102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 9815102550Siwasaki/proc/acpi/dsdt. 9816102550Siwasaki 9817102550Siwasaki ACPI CA Core Subsystem: 9818102550Siwasaki 9819193267SjkimFixed a problem introduced in the previous label where some of the 9820126372Snjl"small" resource descriptor types were not recognized. 9821102550Siwasaki 9822193267SjkimImproved error messages for the case where an ASL Field is outside 9823126372Snjlthe range of the parent operation region. 9824102550Siwasaki 9825102550Siwasaki ASL Compiler, version X2018: 9826102550Siwasaki 9827167802Sjkim 9828193267SjkimAdded error detection for ASL Fields that extend beyond the length 9829126372Snjlof the parent operation region (only if the length of the region 9830126372Snjlis known at compile time.) This includes fields that have a 9831126372Snjlminimum access width that is smaller than the parent region, and 9832126372Snjlindividual field units that are partially or entirely beyond the 9833126372Snjlextent of the parent. 9834102550Siwasaki 9835102550Siwasaki 9836102550Siwasaki 9837102550Siwasaki------------------------------------------ 9838102550SiwasakiSummary of changes for this label: 04_27_01 9839102550Siwasaki 9840102550Siwasaki ACPI CA Core Subsystem: 9841102550Siwasaki 9842193267SjkimFixed a problem where the namespace mutex could be released at the 9843126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 9844102550Siwasaki 9845104470SiwasakiAdded optional thread ID output for debug traces, to simplify 9846114237Snjldebugging of multiple threads. Added context switch notification 9847114237Snjlwhen the debug code realizes that a different thread is now 9848114237Snjlexecuting ACPI code. 9849102550Siwasaki 9850114237SnjlSome additional external data types have been prefixed with the 9851114237Snjlstring "ACPI_" for consistency. This may effect existing code. 9852193267SjkimThe data types affected are the external callback typedefs - e.g., 9853167802Sjkim 9854126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 9855102550Siwasaki 9856102550Siwasaki Linux: 9857102550Siwasaki 9858102550SiwasakiFixed an issue with the OSL semaphore implementation where a 9859102550Siwasakithread was waking up with an error from receiving a SIGCHLD 9860102550Siwasakisignal. 9861102550Siwasaki 9862114237SnjlLinux version of ACPI CA now uses the system C library for string 9863114237Snjlmanipulation routines instead of a local implementation. 9864102550Siwasaki 9865102550SiwasakiCleaned up comments and removed TBDs. 9866102550Siwasaki 9867102550Siwasaki ASL Compiler, version X2017: 9868102550Siwasaki 9869102550SiwasakiEnhanced error detection and reporting for all file I/O 9870102550Siwasakioperations. 9871102550Siwasaki 9872102550Siwasaki Documentation: 9873102550Siwasaki 9874102550SiwasakiProgrammer Reference updated to version 1.06. 9875102550Siwasaki 9876102550Siwasaki 9877102550Siwasaki 9878102550Siwasaki------------------------------------------ 9879102550SiwasakiSummary of changes for this label: 04_13_01 9880102550Siwasaki 9881102550Siwasaki ACPI CA Core Subsystem: 9882102550Siwasaki 9883102550SiwasakiRestructured support for BufferFields and RegionFields. 9884104470SiwasakiBankFields support is now fully operational. All known 32-bit 9885114237Snjllimitations on field sizes have been removed. Both BufferFields 9886114237Snjland (Operation) RegionFields are now supported by the same field 9887114237Snjlmanagement code. 9888102550Siwasaki 9889114237SnjlResource support now supports QWORD address and IO resources. The 9890114237Snjl16/32/64 bit address structures and the Extended IRQ structure 9891114237Snjlhave been changed to properly handle Source Resource strings. 9892102550Siwasaki 9893114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 9894193267Sjkimcondition internally and must never be returned by AcpiOsThreadId. 9895126372SnjlThis reserved value was changed from 0 since Unix systems allow a 9896126372Snjlthread ID of 0. 9897102550Siwasaki 9898102550SiwasakiLinux: 9899102550Siwasaki 9900102550SiwasakiDriver code reorganized to enhance portability 9901102550Siwasaki 9902102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 9903102550Siwasaki 9904102550SiwasakiFixed the EC driver to honor _GLK. 9905102550Siwasaki 9906102550SiwasakiASL Compiler, version X2016: 9907102550Siwasaki 9908114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 9909114237Snjladdress space was set to 0, not 0x7f as it should be. 9910102550Siwasaki 9911102550Siwasaki ------------------------------------------ 9912102550SiwasakiSummary of changes for this label: 03_13_01 9913102550Siwasaki 9914102550Siwasaki ACPI CA Core Subsystem: 9915102550Siwasaki 9916104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 9917104470Siwasakipresent. 9918102550Siwasaki 9919193267SjkimNotify handler fix - notifies are deferred until the parent method 9920126372Snjlcompletes execution. This fixes the "mutex already acquired" 9921126372Snjlissue seen occasionally. 9922102550Siwasaki 9923104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 9924114237Snjlfound to cause compatibility problems with existing ASL/AML. The 9925114237Snjlconvert "result-to-target-type" implementation has been removed 9926114237Snjlfor stores to method Args and Locals. Source operand conversion 9927114237Snjlis still fully implemented. Possible changes to ACPI 2.0 9928114237Snjlspecification pending. 9929102550Siwasaki 9930104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 9931104470Siwasakilength. 9932102550Siwasaki 9933102550SiwasakiFix for compiler warnings for 64-bit compiles. 9934102550Siwasaki 9935102550Siwasaki Linux: 9936102550Siwasaki 9937102550Siwasaki/proc output aligned for easier parsing. 9938102550Siwasaki 9939102550SiwasakiRelease-version compile problem fixed. 9940102550Siwasaki 9941104470SiwasakiNew kernel configuration options documented in Configure.help. 9942102550Siwasaki 9943102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 9944102550Siwasakicontext" message. 9945102550Siwasaki 9946102550Siwasaki OSPM: 9947102550Siwasaki 9948102550SiwasakiPower resource driver integrated with bus manager. 9949102550Siwasaki 9950102550SiwasakiFixed kernel fault during active cooling for thermal zones. 9951102550Siwasaki 9952102550SiwasakiSource Code: 9953102550Siwasaki 9954102550SiwasakiThe source code tree has been restructured. 9955102550Siwasaki 9956102550Siwasaki 9957102550Siwasaki 9958102550Siwasaki------------------------------------------ 9959102550SiwasakiSummary of changes for this label: 03_02_01 9960102550Siwasaki 9961102550Siwasaki Linux OS Services Layer (OSL): 9962102550Siwasaki 9963102550SiwasakiMajor revision of all Linux-specific code. 9964102550Siwasaki 9965102550SiwasakiModularized all ACPI-specific drivers. 9966102550Siwasaki 9967102550SiwasakiAdded new thermal zone and power resource drivers. 9968102550Siwasaki 9969114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 9970102550Siwasaki 9971102550SiwasakiNew kernel configuration options. 9972102550Siwasaki 9973102550Siwasaki Linux known issues: 9974102550Siwasaki 9975114237SnjlNew kernel configuration options not documented in Configure.help 9976114237Snjlyet. 9977102550Siwasaki 9978114237Snjl 9979102550SiwasakiModule dependencies not currently implemented. If used, they 9980102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 9981102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 9982102550Siwasaki 9983102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 9984102550Siwasaki 9985102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 9986102550Siwasaki 9987104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 9988104470Siwasakimessage. 9989102550Siwasaki 9990104470SiwasakiSome systems may fail with "execution mutex already acquired" 9991104470Siwasakimessage. 9992102550Siwasaki 9993102550Siwasaki ACPI CA Core Subsystem: 9994102550Siwasaki 9995114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 9996193267Sjkimfor the deadlock detection code. Defined to return a non-zero, 32- 9997126372Snjlbit thread ID for the currently executing thread. May be a non- 9998126372Snjlzero constant integer on single-thread systems. 9999102550Siwasaki 10000193267SjkimImplemented deadlock detection for internal subsystem mutexes. We 10001126372Snjlmay add conditional compilation for this code (debug only) later. 10002102550Siwasaki 10003104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 10004114237Snjlincludes multiple acquires/releases by owner and support for the 10005167802Sjkim 10006114237SnjlMutex SyncLevel parameter. 10007102550Siwasaki 10008102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 10009104470SiwasakiMutexes that have been acquired but not released when a thread 10010114237Snjlexits the interpreter. This forces conformance to the ACPI spec 10011114237Snjl("All mutexes must be released when an invocation exits") and 10012114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 10013114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 10014114237Snjlcontinues to misbehave (which it will). 10015102550Siwasaki 10016104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 10017104470Siwasakisupport. 10018102550Siwasaki 10019104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 10020114237Snjlspec does in fact allow recursive method calls.) The number of 10021114237Snjlrecursive calls is subject to the restrictions imposed by the 10022114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 10023104470Siwasakiparameter. 10024102550Siwasaki 10025102550SiwasakiImplemented support for the SyncLevel parameter for control 10026102550Siwasakimethods (ACPI 2.0 feature) 10027102550Siwasaki 10028114237SnjlFixed a deadlock problem when multiple threads attempted to use 10029114237Snjlthe interpreter. 10030102550Siwasaki 10031102550SiwasakiFixed a problem where the string length of a String package 10032102550Siwasakielement was not always set in a package returned from 10033102550SiwasakiAcpiEvaluateObject. 10034102550Siwasaki 10035114237SnjlFixed a problem where the length of a String package element was 10036114237Snjlnot always included in the length of the overall package returned 10037114237Snjlfrom AcpiEvaluateObject. 10038102550Siwasaki 10039102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 10040102550Siwasakimanager. This manager keeps a list of all outstanding 10041193267Sjkimallocations, and can therefore detect memory leaks and attempts to 10042126372Snjlfree memory blocks more than once. Useful for code such as the 10043114237Snjlpower manager, etc. May not be appropriate for device drivers. 10044114237SnjlPerformance with the debug code enabled is slow. 10045102550Siwasaki 10046102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 10047102550Siwasaki 10048102550Siwasaki ASL Compiler Version X2015: 10049102550Siwasaki 10050102550SiwasakiIntegrated changes to allow the compiler to be generated on 10051102550Siwasakimultiple platforms. 10052102550Siwasaki 10053102550SiwasakiLinux makefile added to generate the compiler on Linux 10054102550Siwasaki 10055102550Siwasaki Source Code: 10056102550Siwasaki 10057102550SiwasakiAll platform-specific headers have been moved to their own 10058102550Siwasakisubdirectory, Include/Platform. 10059102550Siwasaki 10060102550SiwasakiNew source file added, Interpreter/ammutex.c 10061102550Siwasaki 10062102550SiwasakiNew header file, Include/acstruct.h 10063102550Siwasaki 10064102550Siwasaki Documentation: 10065102550Siwasaki 10066114237SnjlThe programmer reference has been updated for the following new 10067114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 10068102550Siwasaki 10069102550Siwasaki ------------------------------------------ 10070102550SiwasakiSummary of changes for this label: 02_08_01 10071102550Siwasaki 10072102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 10073193267Sjkimincorrectly returned if the return resource buffer was larger than 10074126372Snjlthe actual data (in the resource interfaces). 10075102550Siwasaki 10076114237SnjlReferences to named objects within packages are resolved to the 10077167802Sjkim 10078114237Snjlfull pathname string before packages are returned directly (via 10079114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 10080114237Snjlinterfaces. 10081102550Siwasaki 10082102550SiwasakiLinux OS Services Layer (OSL): 10083102550Siwasaki 10084102550SiwasakiImproved /proc battery interface. 10085102550Siwasaki 10086102550Siwasaki 10087104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 10088102550Siwasaki 10089102550SiwasakiASL Compiler Version X2014: 10090102550Siwasaki 10091114237SnjlAll defined method arguments can now be used as local variables, 10092114237Snjlincluding the ones that are not actually passed in as parameters. 10093114237SnjlThe compiler tracks initialization of the arguments and issues an 10094114237Snjlexception if they are used without prior assignment (just like 10095114237Snjllocals). 10096102550Siwasaki 10097193267SjkimThe -o option now specifies a filename prefix that is used for all 10098126372Snjloutput files, including the AML output file. Otherwise, the 10099114237Snjldefault behavior is as follows: 1) the AML goes to the file 10100114237Snjlspecified in the DSDT. 2) all other output files use the input 10101114237Snjlsource filename as the base. 10102102550Siwasaki 10103102550Siwasaki ------------------------------------------ 10104102550SiwasakiSummary of changes for this label: 01_25_01 10105102550Siwasaki 10106114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 10107114237Snjlstore support within the interpreter. This includes support for 10108114237Snjlthe Store operator as well as any ASL operators that include a 10109114237Snjltarget operand. 10110102550Siwasaki 10111102550SiwasakiPartially implemented support for Implicit Result-to-Target 10112114237Snjlconversion. This is when a result object is converted on the fly 10113114237Snjlto the type of an existing target object. Completion of this 10114114237Snjlsupport is pending further analysis of the ACPI specification 10115114237Snjlconcerning this matter. 10116102550Siwasaki 10117114237SnjlCPU-specific code has been removed from the subsystem (hardware 10118114237Snjldirectory). 10119102550Siwasaki 10120102550SiwasakiNew Power Management Timer functions added 10121102550Siwasaki 10122114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 10123114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 10124102550Siwasaki 10125102550SiwasakiFixed C2 and C3 latency calculations. 10126102550Siwasaki 10127102550Siwasaki 10128114237SnjlWe no longer use the compilation date for the version message on 10129193267Sjkiminitialization, but retrieve the version from AcpiGetSystemInfo(). 10130102550Siwasaki 10131102550SiwasakiIncorporated for fix Sony VAIO machines. 10132102550Siwasaki 10133104470SiwasakiDocumentation: The Programmer Reference has been updated and 10134104470Siwasakireformatted. 10135102550Siwasaki 10136102550Siwasaki 10137102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 10138102550Siwasakinumbering and error reporting could get out of sync in the 10139102550Siwasakipresence of multiple include files. 10140102550Siwasaki 10141102550Siwasaki ------------------------------------------ 10142102550SiwasakiSummary of changes for this label: 01_15_01 10143102550Siwasaki 10144102550SiwasakiCore ACPI CA Subsystem: 10145102550Siwasaki 10146114237SnjlImplemented support for type conversions in the execution of the 10147114237SnjlASL Concatenate operator (The second operand is converted to 10148114237Snjlmatch the type of the first operand before concatenation.) 10149102550Siwasaki 10150102550SiwasakiSupport for implicit source operand conversion is partially 10151114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 10152114237SnjlString are freely interchangeable for most ASL operators and are 10153114237Snjlconverted by the interpreter on the fly as required. Implicit 10154114237SnjlTarget operand conversion (where the result is converted to the 10155114237Snjltarget type before storing) is not yet implemented. 10156102550Siwasaki 10157102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 10158102550Siwasaki 10159193267SjkimProblem fixed where a field read on an aligned field could cause a 10160126372Snjlread past the end of the field. 10161102550Siwasaki 10162114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 10163114237Snjldoes not return a value, but the caller expects one. (The ASL 10164114237Snjlcompiler flags this as a warning.) 10165102550Siwasaki 10166102550SiwasakiASL Compiler: 10167102550Siwasaki 10168102550SiwasakiVersion X2011: 10169102550Siwasaki1. Static typechecking of all operands is implemented. This 10170193267Sjkimprevents the use of invalid objects (such as using a Package where 10171126372Snjlan Integer is required) at compile time instead of at interpreter 10172126372Snjlrun-time. 10173114237Snjl2. The ASL source line is printed with ALL errors and warnings. 10174102550Siwasaki3. Bug fix for source EOF without final linefeed. 10175193267Sjkim4. Debug option is split into a parse trace and a namespace trace. 10176102550Siwasaki5. Namespace output option (-n) includes initial values for 10177102550Siwasakiintegers and strings. 10178102550Siwasaki6. Parse-only option added for quick syntax checking. 10179102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 10180102550Siwasaki 10181102550SiwasakiVersion X2012: 10182102550Siwasaki1. Relaxed typechecking to allow interchangeability between 10183114237Snjlstrings, integers, and buffers. These types are now converted by 10184114237Snjlthe interpreter at runtime. 10185114237Snjl2. Compiler reports time taken by each internal subsystem in the 10186114237Snjldebug output file. 10187102550Siwasaki 10188102550Siwasaki 10189102550Siwasaki ------------------------------------------ 10190102550SiwasakiSummary of changes for this label: 12_14_00 10191102550Siwasaki 10192102550SiwasakiASL Compiler: 10193102550Siwasaki 10194104470SiwasakiThis is the first official release of the compiler. Since the 10195104470Siwasakicompiler requires elements of the Core Subsystem, this label 10196104470Siwasakisynchronizes everything. 10197102550Siwasaki 10198102550Siwasaki------------------------------------------ 10199102550SiwasakiSummary of changes for this label: 12_08_00 10200102550Siwasaki 10201102550Siwasaki 10202114237SnjlFixed a problem where named references within the ASL definition 10203114237Snjlof both OperationRegions and CreateXXXFields did not work 10204114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 10205114237Snjlinitialization of the region/field. This is similar (but not 10206114237Snjlrelated internally) to the problem that was fixed in the last 10207114237Snjllabel. 10208114237Snjl 10209102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 10210102550Siwasakifunctions ToBCD and FromBCD. 10211102550Siwasaki 10212102550SiwasakiUpdated all legal headers to include "2000" in the copyright 10213102550Siwasakiyears. 10214102550Siwasaki 10215102550Siwasaki ------------------------------------------ 10216102550SiwasakiSummary of changes for this label: 12_01_00 10217102550Siwasaki 10218193267SjkimFixed a problem where method invocations within the ASL definition 10219126372Snjlof both OperationRegions and CreateXXXFields did not work 10220126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 10221114237Snjlinitialization of the region/field: 10222102550Siwasaki 10223114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 10224114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 10225114237Snjl(0x3005) 10226102550Siwasaki 10227102550SiwasakiFixed a problem where operators with more than one nested 10228104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 10229114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 10230114237Snjlproblem that has gone unnoticed until now. 10231102550Siwasaki 10232102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 10233102550Siwasaki 10234114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 10235114237Snjlprevious build (The prefix part of a relative path was handled 10236114237Snjlincorrectly). 10237102550Siwasaki 10238114237SnjlFixed a problem where Operation Region initialization failed if 10239114237Snjlthe operation region name was a "namepath" instead of a simple 10240114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 10241102550Siwasaki 10242114237SnjlFixed a problem where an assignment to a local variable via the 10243114237Snjlindirect RefOf mechanism only worked for the first such 10244102550Siwasakiassignment. Subsequent assignments were ignored. 10245102550Siwasaki 10246102550Siwasaki ------------------------------------------ 10247102550SiwasakiSummary of changes for this label: 11_15_00 10248102550Siwasaki 10249193267SjkimACPI 2.0 table support with backwards support for ACPI 1.0 and the 10250193267Sjkim0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables, 10251126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 10252126372Snjlgrammar terms at this time. 10253102550Siwasaki 10254193267SjkimAll ACPI hardware access is via the GAS structures in the ACPI 2.0 10255126372SnjlFADT. 10256102550Siwasaki 10257193267SjkimAll physical memory addresses across all platforms are now 64 bits 10258126372Snjlwide. Logical address width remains dependent on the platform 10259126372Snjl(i.e., "void *"). 10260102550Siwasaki 10261114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 10262102550Siwasaki 10263114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 10264114237Snjl2.0 specification. 10265102550Siwasaki 10266104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 10267104470Siwasakirevision number less than 2 use 32-bit integers only. 10268102550Siwasaki 10269114237SnjlFixed a problem where the evaluation of OpRegion operands did not 10270114237Snjlalways resolve them to numbers properly. 10271102550Siwasaki 10272102550Siwasaki------------------------------------------ 10273102550SiwasakiSummary of changes for this label: 10_20_00 10274102550Siwasaki 10275114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 10276114237SnjlCBN_ OpRegions when the _STA returns 0x8. 10277102550Siwasaki 10278104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 10279104470Siwasakivalues before a package object is returned 10280102550Siwasaki 10281104470SiwasakiFix for method call as predicate to if/while construct causing 10282104470Siwasakiincorrect if/while behavior 10283102550Siwasaki 10284114237SnjlFix for Else block package lengths sometimes calculated wrong (if 10285114237Snjlblock > 63 bytes) 10286102550Siwasaki 10287102550SiwasakiFix for Processor object length field, was always zero 10288102550Siwasaki 10289102550SiwasakiTable load abort if FACP sanity check fails 10290102550Siwasaki 10291102550SiwasakiFix for problem with Scope(name) if name already exists 10292102550Siwasaki 10293102550SiwasakiWarning emitted if a named object referenced cannot be found 10294102550Siwasaki(resolved) during method execution. 10295102550Siwasaki 10296102550Siwasaki 10297102550Siwasaki 10298102550Siwasaki 10299102550Siwasaki 10300102550Siwasaki------------------------------------------ 10301102550SiwasakiSummary of changes for this label: 9_29_00 10302102550Siwasaki 10303114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 10304114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 10305114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 10306114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 10307114237SnjlAcpiLoadTables 10308102550Siwasaki 10309193267SjkimNote: These interface changes require changes to all existing OSDs 10310102550Siwasaki 10311114237SnjlThe PCI_Config default address space handler is always installed 10312114237Snjlat the root namespace object. 10313102550Siwasaki 10314102550Siwasaki------------------------------------------- 10315102550SiwasakiSummary of changes for this label: 09_15_00 10316102550Siwasaki 10317102550SiwasakiThe new initialization architecture is implemented. New 10318114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 10319114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 10320167802Sjkim 10321114237Snjl(Namespace is automatically loaded when a table is loaded) 10322102550Siwasaki 10323193267SjkimThe ACPI_OPERAND_OBJECT has been optimized to shrink its size from 10324126372Snjl52 bytes to 32 bytes. There is usually one of these for every 10325126372Snjlnamespace object, so the memory savings is significant. 10326102550Siwasaki 10327114237SnjlImplemented just-in-time evaluation of the CreateField operators. 10328102550Siwasaki 10329102550SiwasakiBug fixes for IA-64 support have been integrated. 10330102550Siwasaki 10331102550SiwasakiAdditional code review comments have been implemented 10332102550Siwasaki 10333193267SjkimThe so-called "third pass parse" has been replaced by a final walk 10334193267Sjkimthrough the namespace to initialize all operation regions (address 10335126372Snjlspaces) and fields that have not yet been initialized during the 10336126372Snjlexecution of the various _INI and REG methods. 10337102550Siwasaki 10338102550SiwasakiNew file - namespace/nsinit.c 10339102550Siwasaki 10340102550Siwasaki------------------------------------------- 10341102550SiwasakiSummary of changes for this label: 09_01_00 10342102550Siwasaki 10343193267SjkimNamespace manager data structures have been reworked to change the 10344126372Snjlprimary object from a table to a single object. This has 10345193267Sjkimresulted in dynamic memory savings of 3X within the namespace and 10346126372Snjl2X overall in the ACPI CA subsystem. 10347102550Siwasaki 10348102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 10349102550Siwasakiinadvertently left commented out. 10350102550Siwasaki 10351114237SnjlReduced the warning count when generating the source with the GCC 10352114237Snjlcompiler. 10353102550Siwasaki 10354102550SiwasakiRevision numbers added to each module header showing the 10355104470SiwasakiSourceSafe version of the file. Please refer to this version 10356114237Snjlnumber when giving us feedback or comments on individual modules. 10357102550Siwasaki 10358114237SnjlThe main object types within the subsystem have been renamed to 10359114237Snjlclarify their purpose: 10360102550Siwasaki 10361102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 10362102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 10363102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 10364102550Siwasaki 10365114237SnjlNOTE: no changes to the initialization sequence are included in 10366114237Snjlthis label. 10367102550Siwasaki 10368102550Siwasaki------------------------------------------- 10369102550SiwasakiSummary of changes for this label: 08_23_00 10370102550Siwasaki 10371102550SiwasakiFixed problem where TerminateControlMethod was being called 10372102550Siwasakimultiple times per method 10373102550Siwasaki 10374193267SjkimFixed debugger problem where single stepping caused a semaphore to 10375126372Snjlbe oversignalled 10376102550Siwasaki 10377104470SiwasakiImproved performance through additional parse object caching - 10378104470Siwasakiadded ACPI_EXTENDED_OP type 10379102550Siwasaki 10380102550Siwasaki------------------------------------------- 10381102550SiwasakiSummary of changes for this label: 08_10_00 10382102550Siwasaki 10383102550SiwasakiParser/Interpreter integration: Eliminated the creation of 10384102550Siwasakicomplete parse trees for ACPI tables and control methods. 10385114237SnjlInstead, parse subtrees are created and then deleted as soon as 10386193267Sjkimthey are processed (Either entered into the namespace or executed 10387126372Snjlby the interpreter). This reduces the use of dynamic kernel 10388126372Snjlmemory significantly. (about 10X) 10389102550Siwasaki 10390114237SnjlException codes broken into classes and renumbered. Be sure to 10391114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 10392114237Snjlhave to renumber the codes again now that they are split into 10393114237Snjlclasses (environment, programmer, AML code, ACPI table, and 10394114237Snjlinternal). 10395102550Siwasaki 10396104470SiwasakiFixed some additional alignment issues in the Resource Manager 10397104470Siwasakisubcomponent 10398102550Siwasaki 10399114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 10400114237Snjlseveral places where mutexes/semaphores were being unlocked 10401114237Snjlwithout a corresponding lock operation. There are no known 10402114237Snjlsemaphore or mutex "leaks" at this time. 10403102550Siwasaki 10404114237SnjlFixed the case where an ASL Return operator is used to return an 10405114237Snjlunnamed package. 10406102550Siwasaki 10407102550Siwasaki------------------------------------------- 10408102550SiwasakiSummary of changes for this label: 07_28_00 10409102550Siwasaki 10410102550SiwasakiFixed a problem with the way addresses were calculated in 10411114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 10412114237Snjlmanifested itself when a Field was created with WordAccess or 10413193267SjkimDwordAccess, but the field unit defined within the Field was less 10414167802Sjkim 10415126372Snjlthan a Word or Dword. 10416102550Siwasaki 10417102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 10418104470Siwasakioperands off of the operand stack to display information. The 10419114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 10420114237Snjlaccessing an operand stack with two or more operands. 10421102550Siwasaki 10422114237SnjlFixed a problem with the PCI configuration space handlers where 10423114237Snjlcontext was getting confused between accesses. This required a 10424114237Snjlchange to the generic address space handler and address space 10425193267Sjkimsetup definitions. Handlers now get both a global handler context 10426126372Snjl(this is the one passed in by the user when executing 10427114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 10428114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 10429114237Snjl_BBN values associated with a specific region). The generic 10430114237Snjlfunction definitions have changed to the following: 10431102550Siwasaki 10432114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 10433114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 10434104470Siwasaki*HandlerContext, // This used to be void *Context void 10435102550Siwasaki*RegionContext); // This is an additional parameter 10436102550Siwasaki 10437102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 10438102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 10439102550Siwasaki**RegionContext); // This used to be **ReturnContext 10440102550Siwasaki 10441102550Siwasaki------------------------------------------- 10442102550SiwasakiSummary of changes for this label: 07_21_00 10443102550Siwasaki 10444102550SiwasakiMajor file consolidation and rename. All files within the 10445193267Sjkiminterpreter have been renamed as well as most header files. This 10446126372Snjlwas done to prevent collisions with existing files in the host 10447126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 10448126372Snjlquite common. The VC project files have been updated. All 10449114237Snjlmakefiles will require modification. 10450102550Siwasaki 10451114237SnjlThe parser/interpreter integration continues in Phase 5 with the 10452114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 10453114237Snjltwice) for each table; This avoids the construction of a huge 10454114237Snjlparse tree and therefore reduces the amount of dynamic memory 10455114237Snjlrequired by the subsystem. Greater use of the parse object cache 10456114237Snjlmeans that performance is unaffected. 10457102550Siwasaki 10458102550SiwasakiMany comments from the two code reviews have been rolled in. 10459102550Siwasaki 10460102550SiwasakiThe 64-bit alignment support is complete. 10461102550Siwasaki 10462102550Siwasaki------------------------------------------- 10463102550SiwasakiSummary of changes for this label: 06_30_00 10464102550Siwasaki 10465114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 10466114237Snjlwe've added support in the source code for 80 column output 10467114237Snjldevices. The code is now mostly constrained to 80 columns or 10468114237Snjlless to support environments and editors that 1) cannot display 10469114237Snjlor print more than 80 characters on a single line, and 2) cannot 10470114237Snjldisable line wrapping. 10471102550Siwasaki 10472104470SiwasakiA major restructuring of the namespace data structure has been 10473104470Siwasakicompleted. The result is 1) cleaner and more 10474114237Snjlunderstandable/maintainable code, and 2) a significant reduction 10475114237Snjlin the dynamic memory requirement for each named ACPI object 10476114237Snjl(almost half). 10477102550Siwasaki 10478102550Siwasaki------------------------------------------- 10479102550SiwasakiSummary of changes for this label: 06_23_00 10480102550Siwasaki 10481114237SnjlLinux support has been added. In order to obtain approval to get 10482114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 10483114237Snjlquite a few changes to the base subsystem that will affect all 10484114237Snjlusers (all the changes are generic and OS- independent). The 10485114237Snjleffects of these global changes have been somewhat far reaching. 10486114237SnjlFiles have been merged and/or renamed and interfaces have been 10487114237Snjlrenamed. The major changes are described below. 10488102550Siwasaki 10489102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 10490102550Siwasakipollution/confusion within our target kernels. All OSD 10491114237Snjlinterfaces must be modified to match the new naming convention. 10492102550Siwasaki 10493193267SjkimFiles merged across the subsystem. A number of the smaller source 10494126372Snjland header files have been merged to reduce the file count and 10495126372Snjlincrease the density of the existing files. There are too many 10496126372Snjlto list here. In general, makefiles that call out individual 10497126372Snjlfiles will require rebuilding. 10498102550Siwasaki 10499104470SiwasakiInterpreter files renamed. All interpreter files now have the 10500104470Siwasakiprefix am* instead of ie* and is*. 10501102550Siwasaki 10502104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 10503114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 10504114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 10505114237Snjl"external interface" or xface or xf in the filenames.j 10506102550Siwasaki 10507102550Siwasaki 10508114237SnjlAll manifest constants have been forced to upper case (some were 10509193267Sjkimmixed case.) Also, the string "ACPI_" has been prepended to many 10510126372Snjl(not all) of the constants, typedefs, and structs. 10511102550Siwasaki 10512102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 10513102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 10514102550Siwasaki 10515102550SiwasakiAll other globals within the subsystem are now prefixed with 10516102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 10517114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 10518193267Sjkimtwo-letter abbreviation for the subcomponent remains after "Acpi" 10519126372Snjl- for example, CmCallocate became AcpiCmCallocate. 10520102550Siwasaki 10521102550SiwasakiAdded a source code translation/conversion utility. Used to 10522114237Snjlgenerate the Linux source code, it can be modified to generate 10523114237Snjlother types of source as well. Can also be used to cleanup 10524114237Snjlexisting source by removing extraneous spaces and blank lines. 10525114237SnjlFound in tools/acpisrc/* 10526102550Siwasaki 10527102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 10528102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 10529102550Siwasaki 10530114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 10531114237SnjlWhen set to one, this indicates that the caller wants to use the 10532167802Sjkim 10533114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 10534114237Snjlboth types. However, implementers of this call may want to use 10535114237Snjldifferent OS primitives depending on the type of semaphore 10536114237Snjlrequested. For example, some operating systems provide separate 10537167802Sjkim 10538193267Sjkim"mutex" and "semaphore" interfaces - where the mutex interface is 10539126372Snjlmuch faster because it doesn't have all the overhead of a full 10540126372Snjlsemaphore implementation. 10541102550Siwasaki 10542104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 10543114237Snjladdress space can block forever if it is the first access to the 10544114237Snjlspace. 10545102550Siwasaki 10546102550Siwasaki------------------------------------------- 10547102550SiwasakiSummary of changes for this label: 06_02_00 10548102550Siwasaki 10549102550SiwasakiSupport for environments that cannot handle unaligned data 10550114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 10551193267Sjkimhandler technology namely SAL/EFI and the IA-64 Linux kernel) has 10552126372Snjlbeen added (via configurable macros) in these three areas: - 10553114237SnjlTransfer of data from the raw AML byte stream is done via byte 10554193267Sjkimmoves instead of word/dword/qword moves. - External objects are 10555126372Snjlaligned within the user buffer, including package elements (sub- 10556193267Sjkimobjects). - Conversion of name strings to UINT32 Acpi Names is now 10557126372Snjldone byte-wise. 10558102550Siwasaki 10559102550SiwasakiThe Store operator was modified to mimic Microsoft's 10560102550Siwasakiimplementation when storing to a Buffer Field. 10561102550Siwasaki 10562102550SiwasakiAdded a check of the BM_STS bit before entering C3. 10563102550Siwasaki 10564114237SnjlThe methods subdirectory has been obsoleted and removed. A new 10565114237Snjlfile, cmeval.c subsumes the functionality. 10566102550Siwasaki 10567102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 10568102550Siwasakimakefile is under the acpiexec directory. 10569