changes.txt revision 219707
1117521Snjl---------------------------------------- 2219707Sjkim16 March 2011. Summary of changes for version 20110316: 3219707Sjkim 4219707Sjkimx 5219707Sjkim1) ACPI CA Core Subsystem: 6219707Sjkim 7219707SjkimFixed a problem caused by a _PRW method appearing at the namespace root scope 8219707Sjkimduring the setup of wake GPEs. A fault could occur if a _PRW directly under the 9219707Sjkimroot object was passed to the AcpiSetupGpeForWake interface. Lin Ming. 10219707Sjkim 11219707SjkimImplemented support for "spurious" Global Lock interrupts. On some systems, a 12219707Sjkimglobal lock interrupt can occur without the pending flag being set. Upon a GL 13219707Sjkiminterrupt, we now ensure that a thread is actually waiting for the lock before 14219707Sjkimsignaling GL availability. Rafael Wysocki, Bob Moore. 15219707Sjkim 16219707SjkimExample Code and Data Size: These are the sizes for the OS-independent acpica.lib 17219707Sjkimproduced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug version of 18219707Sjkimthe code includes the debug output trace mechanism and has a much larger code and 19219707Sjkimdata size. 20219707Sjkim 21219707Sjkim Previous Release (VC 9.0): 22219707Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 23219707Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 24219707Sjkim Current Release (VC 9.0): 25219707Sjkim Non-Debug Version: 89.8K Code, 23.8K Data, 113.6K Total 26219707Sjkim Debug Version: 164.2K Code, 67.9K Data, 232.1K Total 27219707Sjkim 28219707Sjkim2) iASL Compiler/Disassembler and Tools: 29219707Sjkim 30219707SjkimImplemented full support for the "SLIC" ACPI table. Includes support in the 31219707Sjkimheader files, disassembler, table compiler, and template generator. Bob Moore, 32219707SjkimLin Ming. 33219707Sjkim 34219707SjkimAcpiXtract: Correctly handle embedded comments and messages from AcpiDump. 35219707SjkimApparently some or all versions of acpidump will occasionally emit a comment like 36219707Sjkim"Wrong checksum", etc., into the dump file. This was causing problems for 37219707SjkimAcpiXtract. ACPICA BZ 905. 38219707Sjkim 39219707SjkimiASL: Fix the Linux makefile by removing an inadvertent double file inclusion. 40219707SjkimACPICA BZ 913. 41219707Sjkim 42219707SjkimAcpiExec: Update installation of operation region handlers. Install one handler 43219707Sjkimfor a user-defined address space. This is used by the ASL test suite (ASLTS). 44219707Sjkim 45219707Sjkim---------------------------------------- 46218590Sjkim11 February 2011. Summary of changes for version 20110211: 47218590Sjkim 48218590Sjkim1) ACPI CA Core Subsystem: 49218590Sjkim 50218590SjkimAdded a mechanism to defer _REG methods for some early-installed handlers. 51218590SjkimMost user handlers should be installed before call to AcpiEnableSubsystem. 52218590SjkimHowever, Event handlers and region handlers should be installed after 53218590SjkimAcpiInitializeObjects. Override handlers for the "default" regions should be 54218590Sjkiminstalled early, however. This change executes all _REG methods for the 55218590Sjkimdefault regions (Memory/IO/PCI/DataTable) simultaneously to prevent any 56218590Sjkimchicken/egg issues between them. ACPICA BZ 848. 57218590Sjkim 58218590SjkimImplemented an optimization for GPE detection. This optimization will simply 59218590Sjkimignore GPE registers that contain no enabled GPEs -- there is no need to 60218590Sjkimread the register since this information is available internally. This 61218590Sjkimbecomes more important on machines with a large GPE space. ACPICA bugzilla 62218590Sjkim884. Lin Ming. Suggestion from Joe Liu. 63218590Sjkim 64218590SjkimRemoved all use of the highly unreliable FADT revision field. The revision 65218590Sjkimnumber in the FADT has been found to be completely unreliable and cannot be 66218590Sjkimtrusted. Only the actual table length can be used to infer the version. This 67218590Sjkimchange updates the ACPICA core and the disassembler so that both no longer 68218590Sjkimeven look at the FADT version and instead depend solely upon the FADT 69218590Sjkimlength. 70218590Sjkim 71218590SjkimFix an unresolved name issue for the no-debug and no-error-message source 72218590Sjkimgeneration cases. The _AcpiModuleName was left undefined in these cases, but 73218590Sjkimit is actually needed as a parameter to some interfaces. Define 74218590Sjkim_AcpiModuleName as a null string in these cases. ACPICA Bugzilla 888. 75218590Sjkim 76218590SjkimSplit several large files (makefiles and project files updated) 77218590Sjkim utglobal.c -> utdecode.c 78218590Sjkim dbcomds.c -> dbmethod.c dbnames.c 79218590Sjkim dsopcode.c -> dsargs.c dscontrol.c 80218590Sjkim dsload.c -> dsload2.c 81218590Sjkim aslanalyze.c -> aslbtypes.c aslwalks.c 82218590Sjkim 83218590SjkimExample Code and Data Size: These are the sizes for the OS-independent 84218590Sjkimacpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The 85218590Sjkimdebug version of the code includes the debug output trace mechanism and has 86218590Sjkima much larger code and data size. 87218590Sjkim 88218590Sjkim Previous Release (VC 9.0): 89218590Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 90218590Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 91218590Sjkim Current Release (VC 9.0): 92218590Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 93218590Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 94218590Sjkim 95218590Sjkim2) iASL Compiler/Disassembler and Tools: 96218590Sjkim 97218590SjkimiASL: Implemented the predefined macros __LINE__, __FILE__, and __DATE__. 98218590SjkimThese are useful C-style macros with the standard definitions. ACPICA 99218590Sjkimbugzilla 898. 100218590Sjkim 101218590SjkimiASL/DTC: Added support for integer expressions and labels. Support for full 102218590Sjkimexpressions for all integer fields in all ACPI tables. Support for labels in 103218590Sjkim"generic" portions of tables such as UEFI. See the iASL reference manual. 104218590Sjkim 105218590SjkimDebugger: Added a command to display the status of global handlers. The 106218590Sjkim"handlers" command will display op region, fixed event, and miscellaneous 107218590Sjkimglobal handlers. installation status -- and for op regions, whether default 108218590Sjkimor user-installed handler will be used. 109218590Sjkim 110218590SjkimiASL: Warn if reserved method incorrectly returns a value. Many predefined 111218590Sjkimnames are defined such that they do not return a value. If implemented as a 112218590Sjkimmethod, issue a warning if such a name explicitly returns a value. ACPICA 113218590SjkimBugzilla 855. 114218590Sjkim 115218590SjkimiASL: Added detection of GPE method name conflicts. Detects a conflict where 116218590Sjkimthere are two GPE methods of the form _Lxy and _Exy in the same scope. (For 117218590Sjkimexample, _L1D and _E1D in the same scope.) ACPICA bugzilla 848. 118218590Sjkim 119218590SjkimiASL/DTC: Fixed a couple input scanner issues with comments and line 120218590Sjkimnumbers. Comment remover could get confused and miss a comment ending. Fixed 121218590Sjkima problem with line counter maintenance. 122218590Sjkim 123218590SjkimiASL/DTC: Reduced the severity of some errors from fatal to error. There is 124218590Sjkimno need to abort on simple errors within a field definition. 125218590Sjkim 126218590SjkimDebugger: Simplified the output of the help command. All help output now in 127218590Sjkima single screen, instead of help subcommands. ACPICA Bugzilla 897. 128218590Sjkim 129218590Sjkim 130218590Sjkim---------------------------------------- 131217365Sjkim12 January 2011. Summary of changes for version 20110112: 132217365Sjkim 133217365Sjkim1) ACPI CA Core Subsystem: 134217365Sjkim 135217365SjkimFixed a race condition between method execution and namespace walks that can 136217365Sjkimpossibly cause a fault. The problem was apparently introduced in version 137218590Sjkim20100528 as a result of a performance optimization that reduces the number 138218590Sjkimof 139217365Sjkimnamespace walks upon method exit by using the delete_namespace_subtree 140217365Sjkimfunction instead of the delete_namespace_by_owner function used previously. 141217365SjkimBug is a missing namespace lock in the delete_namespace_subtree function. 142217365Sjkimdana.myers@oracle.com 143217365Sjkim 144217365SjkimFixed several issues and a possible fault with the automatic "serialized" 145218590Sjkimmethod support. History: This support changes a method to "serialized" on 146218590Sjkimthe 147217365Sjkimfly if the method generates an AE_ALREADY_EXISTS error, indicating the 148217365Sjkimpossibility that it cannot handle reentrancy. This fix repairs a couple of 149217365Sjkimissues seen in the field, especially on machines with many cores: 150217365Sjkim 151217365Sjkim 1) Delete method children only upon the exit of the last thread, 152217365Sjkim so as to not delete objects out from under other running threads 153217365Sjkim (and possibly causing a fault.) 154217365Sjkim 2) Set the "serialized" bit for the method only upon the exit of the 155217365Sjkim Last thread, so as to not cause deadlock when running threads 156217365Sjkim attempt to exit. 157217365Sjkim 3) Cleanup the use of the AML "MethodFlags" and internal method flags 158217365Sjkim so that there is no longer any confusion between the two. 159217365Sjkim 160217365Sjkim Lin Ming, Bob Moore. Reported by dana.myers@oracle.com. 161217365Sjkim 162217365SjkimDebugger: Now lock the namespace for duration of a namespace dump. Prevents 163217365Sjkimissues if the namespace is changing dynamically underneath the debugger. 164217365SjkimEspecially affects temporary namespace nodes, since the debugger displays 165217365Sjkimthese also. 166217365Sjkim 167217365SjkimUpdated the ordering of include files. The ACPICA headers should appear 168217365Sjkimbefore any compiler-specific headers (stdio.h, etc.) so that acenv.h can set 169217365Sjkimany necessary compiler-specific defines, etc. Affects the ACPI-related tools 170217365Sjkimand utilities. 171217365Sjkim 172217365SjkimUpdated all ACPICA copyrights and signons to 2011. Added the 2011 copyright 173217365Sjkimto all module headers and signons, including the Linux header. This affects 174217365Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and all 175217365Sjkimutilities. 176217365Sjkim 177217365SjkimAdded project files for MS Visual Studio 2008 (VC++ 9.0). The original 178217365Sjkimproject files for VC++ 6.0 are now obsolete. New project files can be found 179217365Sjkimunder acpica/generate/msvc9. See acpica/generate/msvc9/readme.txt for 180217365Sjkimdetails. 181217365Sjkim 182217365SjkimExample Code and Data Size: These are the sizes for the OS-independent 183217365Sjkimacpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The 184218590Sjkimdebug version of the code includes the debug output trace mechanism and has 185218590Sjkima 186217365Sjkimmuch larger code and data size. 187217365Sjkim 188217365Sjkim Previous Release (VC 6.0): 189217365Sjkim Non-Debug Version: 89.8K Code, 18.9K Data, 108.7K Total 190217365Sjkim Debug Version: 166.6K Code, 52.1K Data, 218.7K Total 191217365Sjkim Current Release (VC 9.0): 192217365Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 193217365Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 194217365Sjkim 195217365Sjkim2) iASL Compiler/Disassembler and Tools: 196217365Sjkim 197218590SjkimiASL: Added generic data types to the Data Table compiler. Add "generic" 198218590Sjkimdata 199217365Sjkimtypes such as UINT32, String, Unicode, etc., to simplify the generation of 200217365Sjkimplatform-defined tables such as UEFI. Lin Ming. 201217365Sjkim 202218590SjkimiASL: Added listing support for the Data Table Compiler. Adds listing 203218590Sjkimsupport 204217365Sjkim(-l) to display actual binary output for each line of input code. 205217365Sjkim 206217365Sjkim---------------------------------------- 207216471Sjkim09 December 2010. Summary of changes for version 20101209: 208216471Sjkim 209216471Sjkim1) ACPI CA Core Subsystem: 210216471Sjkim 211216471SjkimCompleted the major overhaul of the GPE support code that was begun in July 212216471Sjkim2010. Major features include: removal of _PRW execution in ACPICA (host 213216471Sjkimexecutes _PRWs anyway), cleanup of "wake" GPE interfaces and processing, 214216471Sjkimchanges to existing interfaces, simplification of GPE handler operation, and 215216471Sjkima handful of new interfaces: 216216471Sjkim 217216471Sjkim AcpiUpdateAllGpes 218216471Sjkim AcpiFinishGpe 219216471Sjkim AcpiSetupGpeForWake 220216471Sjkim AcpiSetGpeWakeMask 221216471Sjkim One new file, evxfgpe.c to consolidate all external GPE interfaces. 222216471Sjkim 223216471SjkimSee the ACPICA Programmer Reference for full details and programming 224216471Sjkiminformation. See the new section 4.4 "General Purpose Event (GPE) Support" 225216471Sjkimfor a full overview, and section 8.7 "ACPI General Purpose Event Management" 226216471Sjkimfor programming details. ACPICA BZ 858,870,877. Matthew Garrett, Lin Ming, 227216471SjkimBob Moore, Rafael Wysocki. 228216471Sjkim 229216471SjkimImplemented a new GPE feature for Windows compatibility, the "Implicit Wake 230216471SjkimGPE Notify". This feature will automatically issue a Notify(2) on a device 231216471Sjkimwhen a Wake GPE is received if there is no corresponding GPE method or 232216471Sjkimhandler. ACPICA BZ 870. 233216471Sjkim 234216471SjkimFixed a problem with the Scope() operator during table parse and load phase. 235218590SjkimDuring load phase (table load or method execution), the scope operator 236218590Sjkimshould 237216471Sjkimnot enter the target into the namespace. Instead, it should open a new scope 238216471Sjkimat the target location. Linux BZ 19462, ACPICA BZ 882. 239216471Sjkim 240216471SjkimExample Code and Data Size: These are the sizes for the OS-independent 241216471Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 242218590Sjkimdebug version of the code includes the debug output trace mechanism and has 243218590Sjkima 244216471Sjkimmuch larger code and data size. 245216471Sjkim 246216471Sjkim Previous Release: 247216471Sjkim Non-Debug Version: 89.8K Code, 18.9K Data, 108.7K Total 248216471Sjkim Debug Version: 166.6K Code, 52.1K Data, 218.7K Total 249216471Sjkim Current Release: 250216471Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 251216471Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 252216471Sjkim 253216471Sjkim2) iASL Compiler/Disassembler and Tools: 254216471Sjkim 255216471SjkimiASL: Relax the alphanumeric restriction on _CID strings. These strings are 256216471Sjkim"bus-specific" per the ACPI specification, and therefore any characters are 257216471Sjkimacceptable. The only checks that can be performed are for a null string and 258216471Sjkimperhaps for a leading asterisk. ACPICA BZ 886. 259216471Sjkim 260216471SjkimiASL: Fixed a problem where a syntax error that caused a premature EOF 261216471Sjkimcondition on the source file emitted a very confusing error message. The 262216471Sjkimpremature EOF is now detected correctly. ACPICA BZ 891. 263216471Sjkim 264216471SjkimDisassembler: Decode the AccessSize within a Generic Address Structure (byte 265216471Sjkimaccess, word access, etc.) Note, this field does not allow arbitrary bit 266216471Sjkimaccess, the size is encoded as 1=byte, 2=word, 3=dword, and 4=qword. 267216471Sjkim 268216471SjkimNew: AcpiNames utility - Example namespace dump utility. Shows an example of 269216471SjkimACPICA configuration for a minimal namespace dump utility. Uses table and 270216471Sjkimnamespace managers, but no AML interpreter. Does not add any functionality 271216471Sjkimover AcpiExec, it is a subset of AcpiExec. The purpose is to show how to 272216471Sjkimpartition and configure ACPICA. ACPICA BZ 883. 273216471Sjkim 274216471SjkimAML Debugger: Increased the debugger buffer size for method return objects. 275216471SjkimWas 4K, increased to 16K. Also enhanced error messages for debugger method 276216471Sjkimexecution, including the buffer overflow case. 277216471Sjkim 278216471Sjkim---------------------------------------- 279213806Sjkim13 October 2010. Summary of changes for version 20101013: 280213806Sjkim 281213806Sjkim1) ACPI CA Core Subsystem: 282213806Sjkim 283213806SjkimAdded support to clear the PCIEXP_WAKE event. When clearing ACPI events, now 284213806Sjkimclear the PCIEXP_WAKE_STS bit in the ACPI PM1 Status Register, via 285213806SjkimHwClearAcpiStatus. Original change from Colin King. ACPICA BZ 880. 286213806Sjkim 287213806SjkimChanged the type of the predefined namespace object _TZ from ThermalZone to 288213806SjkimDevice. This was found to be confusing to the host software that processes 289213806Sjkimthe various thermal zones, since _TZ is not really a ThermalZone. However, a 290213806SjkimNotify() can still be performed on it. ACPICA BZ 876. Suggestion from Rui 291213806SjkimZhang. 292213806Sjkim 293213806SjkimAdded Windows Vista SP2 to the list of supported _OSI strings. The actual 294213806Sjkimstring is "Windows 2006 SP2". 295213806Sjkim 296213806SjkimEliminated duplicate code in AcpiUtExecute* functions. Now that the nsrepair 297213806Sjkimcode automatically repairs _HID-related strings, this type of code is no 298213806Sjkimlonger needed in Execute_HID, Execute_CID, and Execute_UID. ACPICA BZ 878. 299213806Sjkim 300213806SjkimExample Code and Data Size: These are the sizes for the OS-independent 301213806Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 302218590Sjkimdebug version of the code includes the debug output trace mechanism and has 303218590Sjkima 304213806Sjkimmuch larger code and data size. 305213806Sjkim 306213806Sjkim Previous Release: 307213806Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 308213806Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 309213806Sjkim Current Release: 310213806Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 311213806Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 312213806Sjkim 313213806Sjkim2) iASL Compiler/Disassembler and Tools: 314213806Sjkim 315213806SjkimiASL: Implemented additional compile-time validation for _HID strings. The 316218590Sjkimnon-hex prefix (such as "PNP" or "ACPI") must be uppercase, and the length 317218590Sjkimof 318213806Sjkimthe string must be exactly seven or eight characters. For both _HID and _CID 319213806Sjkimstrings, all characters must be alphanumeric. ACPICA BZ 874. 320213806Sjkim 321213806SjkimiASL: Allow certain "null" resource descriptors. Some BIOS code creates 322218590Sjkimdescriptors that are mostly or all zeros, with the expectation that they 323218590Sjkimwill 324218590Sjkimbe filled in at runtime. iASL now allows this as long as there is a 325218590Sjkim"resource 326213806Sjkimtag" (name) associated with the descriptor, which gives the ASL a handle 327213806Sjkimneeded to modify the descriptor. ACPICA BZ 873. 328213806Sjkim 329213806SjkimAdded single-thread support to the generic Unix application OSL. Primarily 330213806Sjkimfor iASL support, this change removes the use of semaphores in the single- 331213806Sjkimthreaded ACPICA tools/applications - increasing performance. The 332213806Sjkim_MULTI_THREADED option was replaced by the (reverse) ACPI_SINGLE_THREADED 333213806Sjkimoption. ACPICA BZ 879. 334213806Sjkim 335218590SjkimAcpiExec: several fixes for the 64-bit version. Adds XSDT support and 336218590Sjkimsupport 337213806Sjkimfor 64-bit DSDT/FACS addresses in the FADT. Lin Ming. 338213806Sjkim 339213806SjkimiASL: Moved all compiler messages to a new file, aslmessages.h. 340213806Sjkim 341213806Sjkim---------------------------------------- 342212761Sjkim15 September 2010. Summary of changes for version 20100915: 343212761Sjkim 344212761Sjkim1) ACPI CA Core Subsystem: 345212761Sjkim 346218590SjkimRemoved the AcpiOsDerivePciId OSL interface. The various host 347218590Sjkimimplementations 348212761Sjkimof this function were not OS-dependent and are now obsolete and can be 349212761Sjkimremoved from all host OSLs. This function has been replaced by 350212761SjkimAcpiHwDerivePciId, which is now part of the ACPICA core code. 351212761SjkimAcpiHwDerivePciId has been implemented without recursion. Adds one new 352212761Sjkimmodule, hwpci.c. ACPICA BZ 857. 353212761Sjkim 354212761SjkimImplemented a dynamic repair for _HID and _CID strings. The following 355212761Sjkimproblems are now repaired at runtime: 1) Remove a leading asterisk in the 356212761Sjkimstring, and 2) the entire string is uppercased. Both repairs are in 357212761Sjkimaccordance with the ACPI specification and will simplify host driver code. 358212761SjkimACPICA BZ 871. 359212761Sjkim 360212761SjkimThe ACPI_THREAD_ID type is no longer configurable, internally it is now 361218590Sjkimalways UINT64. This simplifies the ACPICA code, especially any printf 362218590Sjkimoutput. 363212761SjkimUINT64 is the only common data type for all thread_id types across all 364212761Sjkimoperating systems. It is now up to the host OSL to cast the native thread_id 365212761Sjkimtype to UINT64 before returning the value to ACPICA (via AcpiOsGetThreadId). 366212761SjkimLin Ming, Bob Moore. 367212761Sjkim 368212761SjkimAdded the ACPI_INLINE type to enhance the ACPICA configuration. The "inline" 369212761Sjkimkeyword is not standard across compilers, and this type allows inline to be 370212761Sjkimconfigured on a per-compiler basis. Lin Ming. 371212761Sjkim 372212761SjkimMade the system global AcpiGbl_SystemAwakeAndRunning publically available. 373212761SjkimAdded an extern for this boolean in acpixf.h. Some hosts utilize this value 374212761Sjkimduring suspend/restore operations. ACPICA BZ 869. 375212761Sjkim 376212761SjkimAll code that implements error/warning messages with the "ACPI:" prefix has 377212761Sjkimbeen moved to a new module, utxferror.c. 378212761Sjkim 379212761SjkimThe UINT64_OVERLAY was moved to utmath.c, which is the only module where it 380212761Sjkimis used. ACPICA BZ 829. Lin Ming, Bob Moore. 381212761Sjkim 382212761SjkimExample Code and Data Size: These are the sizes for the OS-independent 383212761Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 384218590Sjkimdebug version of the code includes the debug output trace mechanism and has 385218590Sjkima 386212761Sjkimmuch larger code and data size. 387212761Sjkim 388212761Sjkim Previous Release: 389212761Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 390212761Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 391212761Sjkim Current Release: 392212761Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 393212761Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 394212761Sjkim 395212761Sjkim2) iASL Compiler/Disassembler and Tools: 396212761Sjkim 397212761SjkimiASL/Disassembler: Write ACPI errors to stderr instead of the output file. 398212761SjkimThis keeps the output files free of random error messages that may originate 399212761Sjkimfrom within the namespace/interpreter code. Used this opportunity to merge 400212761Sjkimall ACPI:-style messages into a single new module, utxferror.c. ACPICA BZ 401212761Sjkim866. Lin Ming, Bob Moore. 402212761Sjkim 403212761SjkimTools: update some printfs for ansi warnings on size_t. Handle width change 404212761Sjkimof size_t on 32-bit versus 64-bit generations. Lin Ming. 405212761Sjkim 406212761Sjkim---------------------------------------- 407210976Sjkim06 August 2010. Summary of changes for version 20100806: 408210976Sjkim 409210976Sjkim1) ACPI CA Core Subsystem: 410210976Sjkim 411210976SjkimDesigned and implemented a new host interface to the _OSI support code. This 412210976Sjkimwill allow the host to dynamically add or remove multiple _OSI strings, as 413210976Sjkimwell as install an optional handler that is called for each _OSI invocation. 414218590SjkimAlso added a new AML debugger command, 'osi' to display and modify the 415218590Sjkimglobal 416210976Sjkim_OSI string table, and test support in the AcpiExec utility. See the ACPICA 417210976Sjkimreference manual for full details. Lin Ming, Bob Moore. ACPICA BZ 836. 418210976SjkimNew Functions: 419210976Sjkim AcpiInstallInterface - Add an _OSI string. 420210976Sjkim AcpiRemoveInterface - Delete an _OSI string. 421210976Sjkim AcpiInstallInterfaceHandler - Install optional _OSI handler. 422210976SjkimObsolete Functions: 423210976Sjkim AcpiOsValidateInterface - no longer used. 424210976SjkimNew Files: 425210976Sjkim source/components/utilities/utosi.c 426210976Sjkim 427210976SjkimRe-introduced the support to enable multi-byte transfers for Embedded 428210976SjkimController (EC) operation regions. A reported problem was found to be a bug 429210976Sjkimin the host OS, not in the multi-byte support. Previously, the maximum data 430210976Sjkimsize passed to the EC operation region handler was a single byte. There are 431210976Sjkimoften EC Fields larger than one byte that need to be transferred, and it is 432210976Sjkimuseful for the EC driver to lock these as a single transaction. This change 433210976Sjkimenables single transfers larger than 8 bits. This effectively changes the 434210976Sjkimaccess to the EC space from ByteAcc to AnyAcc, and will probably require 435210976Sjkimchanges to the host OS Embedded Controller driver to enable 16/32/64/256-bit 436210976Sjkimtransfers in addition to 8-bit transfers. Alexey Starikovskiy, Lin Ming. 437210976Sjkim 438210976SjkimFixed a problem with the prototype for AcpiOsReadPciConfiguration. The 439210976Sjkimprototype in acpiosxf.h had the output value pointer as a (void *). 440210976SjkimIt should be a (UINT64 *). This may affect some host OSL code. 441210976Sjkim 442210976SjkimFixed a couple problems with the recently modified Linux makefiles for iASL 443210976Sjkimand AcpiExec. These new makefiles place the generated object files in the 444218590Sjkimlocal directory so that there can be no collisions between the files that 445218590Sjkimare 446210976Sjkimshared between them that are compiled with different options. 447210976Sjkim 448210976SjkimExample Code and Data Size: These are the sizes for the OS-independent 449210976Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 450218590Sjkimdebug version of the code includes the debug output trace mechanism and has 451218590Sjkima 452210976Sjkimmuch larger code and data size. 453210976Sjkim 454210976Sjkim Previous Release: 455210976Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 456210976Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 457210976Sjkim Current Release: 458210976Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 459210976Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 460210976Sjkim 461210976Sjkim2) iASL Compiler/Disassembler and Tools: 462210976Sjkim 463210976SjkimiASL/Disassembler: Added a new option (-da, "disassemble all") to load the 464210976Sjkimnamespace from and disassemble an entire group of AML files. Useful for 465210976Sjkimloading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn) and 466210976Sjkimdisassembling with one simple command. ACPICA BZ 865. Lin Ming. 467210976Sjkim 468210976SjkimiASL: Allow multiple invocations of -e option. This change allows multiple 469210976Sjkimuses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ 834. 470210976SjkimLin Ming. 471210976Sjkim 472210976Sjkim---------------------------------------- 473209746Sjkim02 July 2010. Summary of changes for version 20100702: 474209746Sjkim 475209746Sjkim1) ACPI CA Core Subsystem: 476209746Sjkim 477209746SjkimImplemented several updates to the recently added GPE reference count 478209746Sjkimsupport. The model for "wake" GPEs is changing to give the host OS complete 479209746Sjkimcontrol of these GPEs. Eventually, the ACPICA core will not execute any _PRW 480209746Sjkimmethods, since the host already must execute them. Also, additional changes 481209746Sjkimwere made to help ensure that the reference counts are kept in proper 482209746Sjkimsynchronization with reality. Rafael J. Wysocki. 483209746Sjkim 484209746Sjkim1) Ensure that GPEs are not enabled twice during initialization. 485209746Sjkim2) Ensure that GPE enable masks stay in sync with the reference count. 486209746Sjkim3) Do not inadvertently enable GPEs when writing GPE registers. 487209746Sjkim4) Remove the internal wake reference counter and add new AcpiGpeWakeup 488209746Sjkiminterface. This interface will set or clear individual GPEs for wakeup. 489209746Sjkim5) Remove GpeType argument from AcpiEnable and AcpiDisable. These interfaces 490209746Sjkimare now used for "runtime" GPEs only. 491209746Sjkim 492218590SjkimChanged the behavior of the GPE install/remove handler interfaces. The GPE 493218590Sjkimis 494209746Sjkimno longer disabled during this process, as it was found to cause problems on 495209746Sjkimsome machines. Rafael J. Wysocki. 496209746Sjkim 497209746SjkimReverted a change introduced in version 20100528 to enable Embedded 498218590SjkimController multi-byte transfers. This change was found to cause problems 499218590Sjkimwith 500209746SjkimIndex Fields and possibly Bank Fields. It will be reintroduced when these 501209746Sjkimproblems have been resolved. 502209746Sjkim 503209746SjkimFixed a problem with references to Alias objects within Package Objects. A 504209746Sjkimreference to an Alias within the definition of a Package was not always 505209746Sjkimresolved properly. Aliases to objects like Processors, Thermal zones, etc. 506218590Sjkimwere resolved to the actual object instead of a reference to the object as 507218590Sjkimit 508209746Sjkimshould be. Package objects are only allowed to contain integer, string, 509209746Sjkimbuffer, package, and reference objects. Redhat bugzilla 608648. 510209746Sjkim 511209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 512209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 513218590Sjkimdebug version of the code includes the debug output trace mechanism and has 514218590Sjkima 515209746Sjkimmuch larger code and data size. 516209746Sjkim 517209746Sjkim Previous Release: 518209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 519209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 520209746Sjkim Current Release: 521209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 522209746Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 523209746Sjkim 524209746Sjkim2) iASL Compiler/Disassembler and Tools: 525209746Sjkim 526209746SjkimiASL: Implemented a new compiler subsystem to allow definition and 527209746Sjkimcompilation of the non-AML ACPI tables such as FADT, MADT, SRAT, etc. These 528209746Sjkimare called "ACPI Data Tables", and the new compiler is the "Data Table 529209746SjkimCompiler". This compiler is intended to simplify the existing error-prone 530209746Sjkimprocess of creating these tables for the BIOS, as well as allowing the 531209746Sjkimdisassembly, modification, recompilation, and override of existing ACPI data 532209746Sjkimtables. See the iASL User Guide for detailed information. 533209746Sjkim 534209746SjkimiASL: Implemented a new Template Generator option in support of the new Data 535209746SjkimTable Compiler. This option will create examples of all known ACPI tables 536209746Sjkimthat can be used as the basis for table development. See the iASL 537209746Sjkimdocumentation and the -T option. 538209746Sjkim 539209746SjkimDisassembler and headers: Added support for the WDDT ACPI table (Watchdog 540209746SjkimDescriptor Table). 541209746Sjkim 542209746SjkimUpdated the Linux makefiles for iASL and AcpiExec to place the generated 543209746Sjkimobject files in the local directory so that there can be no collisions 544209746Sjkimbetween the shared files between them that are generated with different 545209746Sjkimoptions. 546209746Sjkim 547209746SjkimAdded support for Mac OS X in the Unix OSL used for iASL and AcpiExec. Use 548209746Sjkimthe #define __APPLE__ to enable this support. 549209746Sjkim 550209746Sjkim---------------------------------------- 551209746Sjkim28 May 2010. Summary of changes for version 20100528: 552209746Sjkim 553209746SjkimNote: The ACPI 4.0a specification was released on April 5, 2010 and is 554209746Sjkimavailable at www.acpi.info. This is primarily an errata release. 555209746Sjkim 556209746Sjkim1) ACPI CA Core Subsystem: 557209746Sjkim 558209746SjkimUndefined ACPI tables: We are looking for the definitions for the following 559209746SjkimACPI tables that have been seen in the field: ATKG, IEIT, GSCI. 560209746Sjkim 561209746SjkimImplemented support to enable multi-byte transfers for Embedded Controller 562209746Sjkim(EC) operation regions. Previously, the maximum data size passed to the EC 563209746Sjkimoperation region handler was a single byte. There are often EC Fields larger 564218590Sjkimthan one byte that need to be transferred, and it is useful for the EC 565218590Sjkimdriver 566209746Sjkimto lock these as a single transaction. This change enables single transfers 567209746Sjkimlarger than 8 bits. This effectively changes the access to the EC space from 568209746SjkimByteAcc to AnyAcc, and will probably require changes to the host OS Embedded 569209746SjkimController driver to enable 16/32/64/256-bit transfers in addition to 8-bit 570209746Sjkimtransfers. Alexey Starikovskiy, Lin Ming 571209746Sjkim 572209746SjkimImplemented a performance enhancement for namespace search and access. This 573209746Sjkimchange enhances the performance of namespace searches and walks by adding a 574209746Sjkimbackpointer to the parent in each namespace node. On large namespaces, this 575209746Sjkimchange can improve overall ACPI performance by up to 9X. Adding a pointer to 576209746Sjkimeach namespace node increases the overall size of the internal namespace by 577209746Sjkimabout 5%, since each namespace entry usually consists of both a namespace 578209746Sjkimnode and an ACPI operand object. However, this is the first growth of the 579209746Sjkimnamespace in ten years. ACPICA bugzilla 817. Alexey Starikovskiy. 580209746Sjkim 581209746SjkimImplemented a performance optimization that reduces the number of namespace 582218590Sjkimwalks. On control method exit, only walk the namespace if the method is 583218590Sjkimknown 584218590Sjkimto have created namespace objects outside of its local scope. Previously, 585218590Sjkimthe 586209746Sjkimentire namespace was traversed on each control method exit. This change can 587218590Sjkimimprove overall ACPI performance by up to 3X. Alexey Starikovskiy, Bob 588218590SjkimMoore. 589209746Sjkim 590218590SjkimAdded support to truncate I/O addresses to 16 bits for Windows 591218590Sjkimcompatibility. 592209746SjkimSome ASL code has been seen in the field that inadvertently has bits set 593209746Sjkimabove bit 15. This feature is optional and is enabled if the BIOS requests 594209746Sjkimany Windows OSI strings. It can also be enabled by the host OS. Matthew 595209746SjkimGarrett, Bob Moore. 596209746Sjkim 597209746SjkimAdded support to limit the maximum time for the ASL Sleep() operator. To 598209746Sjkimprevent accidental deep sleeps, limit the maximum time that Sleep() will 599209746Sjkimactually sleep. Configurable, the default maximum is two seconds. ACPICA 600209746Sjkimbugzilla 854. 601209746Sjkim 602209746SjkimAdded run-time validation support for the _WDG and_WED Microsoft predefined 603209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 604209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 605209746Sjkim 606209746SjkimExpanded all statistic counters used during namespace and device 607209746Sjkiminitialization from 16 to 32 bits in order to support very large namespaces. 608209746Sjkim 609218590SjkimReplaced all instances of %d in printf format specifiers with %u since 610218590Sjkimnearly 611209746Sjkimall integers in ACPICA are unsigned. 612209746Sjkim 613218590SjkimFixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly 614218590Sjkimreturned 615209746Sjkimas AE_NO_HANDLER. 616209746Sjkim 617209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 618209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 619218590Sjkimdebug version of the code includes the debug output trace mechanism and has 620218590Sjkima 621209746Sjkimmuch larger code and data size. 622209746Sjkim 623209746Sjkim Previous Release: 624209746Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 625209746Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 626209746Sjkim Current Release: 627209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 628209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 629209746Sjkim 630209746Sjkim2) iASL Compiler/Disassembler and Tools: 631209746Sjkim 632209746SjkimiASL: Added compiler support for the _WDG and_WED Microsoft predefined 633209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 634209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 635209746Sjkim 636209746SjkimAcpiExec: added option to disable the memory tracking mechanism. The -dt 637209746Sjkimoption will disable the tracking mechanism, which improves performance 638209746Sjkimconsiderably. 639209746Sjkim 640209746SjkimAcpiExec: Restructured the command line options into -d (disable) and -e 641209746Sjkim(enable) options. 642209746Sjkim 643209746Sjkim---------------------------------------- 644207344Sjkim28 April 2010. Summary of changes for version 20100428: 645207344Sjkim 646207344Sjkim1) ACPI CA Core Subsystem: 647207344Sjkim 648207344SjkimImplemented GPE support for dynamically loaded ACPI tables. For all GPEs, 649207344Sjkimincluding FADT-based and GPE Block Devices, execute any _PRW methods in the 650207344Sjkimnew table, and process any _Lxx/_Exx GPE methods in the new table. Any 651207344Sjkimruntime GPE that is referenced by an _Lxx/_Exx method in the new table is 652207344Sjkimimmediately enabled. Handles the FADT-defined GPEs as well as GPE Block 653207344SjkimDevices. Provides compatibility with other ACPI implementations. Two new 654218590Sjkimfiles added, evgpeinit.c and evgpeutil.c. ACPICA BZ 833. Lin Ming, Bob 655218590SjkimMoore. 656207344Sjkim 657207344SjkimFixed a regression introduced in version 20100331 within the table manager 658207344Sjkimwhere initial table loading could fail. This was introduced in the fix for 659207344SjkimAcpiReallocateRootTable. Also, renamed some of fields in the table manager 660207344Sjkimdata structures to clarify their meaning and use. 661207344Sjkim 662207344SjkimFixed a possible allocation overrun during internal object copy in 663207344SjkimAcpiUtCopySimpleObject. The original code did not correctly handle the case 664207344Sjkimwhere the object to be copied was a namespace node. Lin Ming. ACPICA BZ 847. 665207344Sjkim 666207344SjkimUpdated the allocation dump routine, AcpiUtDumpAllocation and fixed a 667218590Sjkimpossible access beyond end-of-allocation. Also, now fully validate 668218590Sjkimdescriptor 669207344Sjkim(size and type) before output. Lin Ming, Bob Moore. ACPICA BZ 847 670207344Sjkim 671207344SjkimExample Code and Data Size: These are the sizes for the OS-independent 672207344Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 673218590Sjkimdebug version of the code includes the debug output trace mechanism and has 674218590Sjkima 675207344Sjkimmuch larger code and data size. 676207344Sjkim 677207344Sjkim Previous Release: 678207344Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 679207344Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 680207344Sjkim Current Release: 681207344Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 682207344Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 683207344Sjkim 684207344Sjkim2) iASL Compiler/Disassembler and Tools: 685207344Sjkim 686207344SjkimiASL: Implemented Min/Max/Len/Gran validation for address resource 687207344Sjkimdescriptors. This change implements validation for the address fields that 688207344Sjkimare common to all address-type resource descriptors. These checks are 689207344Sjkimimplemented: Checks for valid Min/Max, length within the Min/Max window, 690207344Sjkimvalid granularity, Min/Max a multiple of granularity, and _MIF/_MAF as per 691218590Sjkimtable 6-40 in the ACPI 4.0a specification. Also split the large 692218590Sjkimaslrestype1.c 693207344Sjkimand aslrestype2.c files into five new files. ACPICA BZ 840. 694207344Sjkim 695207344SjkimiASL: Added support for the _Wxx predefined names. This support was missing 696207344Sjkimand these names were not recognized by the compiler as valid predefined 697207344Sjkimnames. ACPICA BZ 851. 698207344Sjkim 699207344SjkimiASL: Added an error for all predefined names that are defined to return no 700207344Sjkimvalue and thus must be implemented as Control Methods. These include all of 701207344Sjkimthe _Lxx, _Exx, _Wxx, and _Qxx names, as well as some other miscellaneous 702207344Sjkimnames such as _DIS, _INI, _IRC, _OFF, _ON, and _PSx. ACPICA BZ 850, 856. 703207344Sjkim 704207344SjkimiASL: Implemented the -ts option to emit hex AML data in ASL format, as an 705207344SjkimASL Buffer. Allows ACPI tables to be easily included within ASL files, to be 706207344Sjkimdynamically loaded via the Load() operator. Also cleaned up output for the - 707207344Sjkimta and -tc options. ACPICA BZ 853. 708207344Sjkim 709207344SjkimTests: Added a new file with examples of extended iASL error checking. 710207344SjkimDemonstrates the advanced error checking ability of the iASL compiler. 711207344SjkimAvailable at tests/misc/badcode.asl. 712207344Sjkim 713207344Sjkim---------------------------------------- 714206117Sjkim31 March 2010. Summary of changes for version 20100331: 715206117Sjkim 716206117Sjkim1) ACPI CA Core Subsystem: 717206117Sjkim 718206117SjkimCompleted a major update for the GPE support in order to improve support for 719206117Sjkimshared GPEs and to simplify both host OS and ACPICA code. Added a reference 720206117Sjkimcount mechanism to support shared GPEs that require multiple device drivers. 721206117SjkimSeveral external interfaces have changed. One external interface has been 722206117Sjkimremoved. One new external interface was added. Most of the GPE external 723206117Sjkiminterfaces now use the GPE spinlock instead of the events mutex (and the 724206117SjkimFlags parameter for many GPE interfaces has been removed.) See the updated 725206117SjkimACPICA Programmer Reference for details. Matthew Garrett, Bob Moore, Rafael 726206117SjkimWysocki. ACPICA BZ 831. 727206117Sjkim 728206117SjkimChanged: 729206117Sjkim AcpiEnableGpe, AcpiDisableGpe, AcpiClearGpe, AcpiGetGpeStatus 730206117SjkimRemoved: 731206117Sjkim AcpiSetGpeType 732206117SjkimNew: 733206117Sjkim AcpiSetGpe 734206117Sjkim 735206117SjkimImplemented write support for DataTable operation regions. These regions are 736218590Sjkimdefined via the DataTableRegion() operator. Previously, only read support 737218590Sjkimwas 738218590Sjkimimplemented. The ACPI specification allows DataTableRegions to be 739218590Sjkimread/write, 740206117Sjkimhowever. 741206117Sjkim 742206117SjkimImplemented a new subsystem option to force a copy of the DSDT to local 743206117Sjkimmemory. Optionally copy the entire DSDT to local memory (instead of simply 744206117Sjkimmapping it.) There are some (albeit very rare) BIOSs that corrupt or replace 745206117Sjkimthe original DSDT, creating the need for this option. Default is FALSE, do 746206117Sjkimnot copy the DSDT. 747206117Sjkim 748206117SjkimImplemented detection of a corrupted or replaced DSDT. This change adds 749218590Sjkimsupport to detect a DSDT that has been corrupted and/or replaced from 750218590Sjkimoutside 751206117Sjkimthe OS (by firmware). This is typically catastrophic for the system, but has 752206117Sjkimbeen seen on some machines. Once this problem has been detected, the DSDT 753206117Sjkimcopy option can be enabled via system configuration. Lin Ming, Bob Moore. 754206117Sjkim 755206117SjkimFixed two problems with AcpiReallocateRootTable during the root table copy. 756206117SjkimWhen copying the root table to the new allocation, the length used was 757206117Sjkimincorrect. The new size was used instead of the current table size, meaning 758206117Sjkimtoo much data was copied. Also, the count of available slots for ACPI tables 759206117Sjkimwas not set correctly. Alexey Starikovskiy, Bob Moore. 760206117Sjkim 761206117SjkimExample Code and Data Size: These are the sizes for the OS-independent 762206117Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 763218590Sjkimdebug version of the code includes the debug output trace mechanism and has 764218590Sjkima 765206117Sjkimmuch larger code and data size. 766206117Sjkim 767206117Sjkim Previous Release: 768206117Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 769206117Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 770206117Sjkim Current Release: 771206117Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 772206117Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 773206117Sjkim 774206117Sjkim2) iASL Compiler/Disassembler and Tools: 775206117Sjkim 776206117SjkimiASL: Implement limited typechecking for values returned from predefined 777206117Sjkimcontrol methods. The type of any returned static (unnamed) object is now 778206117Sjkimvalidated. For example, Return(1). ACPICA BZ 786. 779206117Sjkim 780218590SjkimiASL: Fixed a predefined name object verification regression. Fixes a 781218590Sjkimproblem 782206117Sjkimintroduced in version 20100304. An error is incorrectly generated if a 783206117Sjkimpredefined name is declared as a static named object with a value defined 784206117Sjkimusing the keywords "Zero", "One", or "Ones". Lin Ming. 785206117Sjkim 786206117SjkimiASL: Added Windows 7 support for the -g option (get local ACPI tables) by 787206117Sjkimreducing the requested registry access rights. ACPICA BZ 842. 788206117Sjkim 789206117SjkimDisassembler: fixed a possible fault when generating External() statements. 790206117SjkimIntroduced in commit ae7d6fd: Properly handle externals with parent-prefix 791206117Sjkim(carat). Fixes a string length allocation calculation. Lin Ming. 792206117Sjkim 793206117Sjkim---------------------------------------- 794204773Sjkim04 March 2010. Summary of changes for version 20100304: 795204773Sjkim 796204773Sjkim1) ACPI CA Core Subsystem: 797204773Sjkim 798204773SjkimFixed a possible problem with the AML Mutex handling function 799204773SjkimAcpiExReleaseMutex where the function could fault under the very rare 800218590Sjkimcondition when the interpreter has blocked, the interpreter lock is 801218590Sjkimreleased, 802204773Sjkimthe interpreter is then reentered via the same thread, and attempts to 803218590Sjkimacquire an AML mutex that was previously acquired. FreeBSD report 140979. 804218590SjkimLin 805204773SjkimMing. 806204773Sjkim 807204773SjkimImplemented additional configuration support for the AML "Debug Object". 808204773SjkimOutput from the debug object can now be enabled via a global variable, 809218590SjkimAcpiGbl_EnableAmlDebugObject. This will assist with remote machine 810218590Sjkimdebugging. 811204773SjkimThis debug output is now available in the release version of ACPICA instead 812204773Sjkimof just the debug version. Also, the entire debug output module can now be 813204773Sjkimconfigured out of the ACPICA build if desired. One new file added, 814204773Sjkimexecuter/exdebug.c. Lin Ming, Bob Moore. 815204773Sjkim 816204773SjkimAdded header support for the ACPI MCHI table (Management Controller Host 817218590SjkimInterface Table). This table was added in ACPI 4.0, but the defining 818218590Sjkimdocument 819204773Sjkimhas only recently become available. 820204773Sjkim 821204773SjkimStandardized output of integer values for ACPICA warnings/errors. Always use 822204773Sjkim0x prefix for hex output, always use %u for unsigned integer decimal output. 823204773SjkimAffects ACPI_INFO, ACPI_ERROR, ACPI_EXCEPTION, and ACPI_WARNING (about 400 824204773Sjkiminvocations.) These invocations were converted from the original 825204773SjkimACPI_DEBUG_PRINT invocations and were not consistent. ACPICA BZ 835. 826204773Sjkim 827204773SjkimExample Code and Data Size: These are the sizes for the OS-independent 828204773Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 829218590Sjkimdebug version of the code includes the debug output trace mechanism and has 830218590Sjkima 831204773Sjkimmuch larger code and data size. 832204773Sjkim 833204773Sjkim Previous Release: 834204773Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 835204773Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 836204773Sjkim Current Release: 837204773Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 838204773Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 839204773Sjkim 840204773Sjkim2) iASL Compiler/Disassembler and Tools: 841204773Sjkim 842204773SjkimiASL: Implemented typechecking support for static (non-control method) 843204773Sjkimpredefined named objects that are declared with the Name() operator. For 844204773Sjkimexample, the type of this object is now validated to be of type Integer: 845218590SjkimName(_BBN, 1). This change migrates the compiler to using the core 846218590Sjkimpredefined 847204773Sjkimname table instead of maintaining a local version. Added a new file, 848204773Sjkimaslpredef.c. ACPICA BZ 832. 849204773Sjkim 850204773SjkimDisassembler: Added support for the ACPI 4.0 MCHI table. 851204773Sjkim 852204773Sjkim---------------------------------------- 853202771Sjkim21 January 2010. Summary of changes for version 20100121: 854202771Sjkim 855202771Sjkim1) ACPI CA Core Subsystem: 856202771Sjkim 857202771SjkimAdded the 2010 copyright to all module headers and signons. This affects 858202771Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, the 859202771Sjkimtools/utilities, and the test suites. 860202771Sjkim 861218590SjkimImplemented a change to the AcpiGetDevices interface to eliminate 862218590Sjkimunnecessary 863202771Sjkiminvocations of the _STA method. In the case where a specific _HID is 864202771Sjkimrequested, do not run _STA until a _HID match is found. This eliminates 865218590Sjkimpotentially dozens of _STA calls during a search for a particular 866218590Sjkimdevice/HID, 867202771Sjkimwhich in turn can improve boot times. ACPICA BZ 828. Lin Ming. 868202771Sjkim 869218590SjkimImplemented an additional repair for predefined method return values. 870218590SjkimAttempt 871218590Sjkimto repair unexpected NULL elements within returned Package objects. Create 872218590Sjkiman 873218590SjkimInteger of value zero, a NULL String, or a zero-length Buffer as 874218590Sjkimappropriate. 875202771SjkimACPICA BZ 818. Lin Ming, Bob Moore. 876202771Sjkim 877202771SjkimRemoved the obsolete ACPI_INTEGER data type. This type was introduced as the 878202771Sjkimcode was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with 879202771Sjkim64-bit AML integers). It is now obsolete and this change removes it from the 880202771SjkimACPICA code base, replaced by UINT64. The original typedef has been retained 881202771Sjkimfor now for compatibility with existing device driver code. ACPICA BZ 824. 882202771Sjkim 883202771SjkimRemoved the unused UINT32_STRUCT type, and the obsolete Integer64 field in 884202771Sjkimthe parse tree object. 885202771Sjkim 886218590SjkimAdded additional warning options for the gcc-4 generation. Updated the 887218590Sjkimsource 888202771Sjkimaccordingly. This includes some code restructuring to eliminate unreachable 889202771Sjkimcode, elimination of some gotos, elimination of unused return values, some 890202771Sjkimadditional casting, and removal of redundant declarations. 891202771Sjkim 892202771SjkimExample Code and Data Size: These are the sizes for the OS-independent 893202771Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 894218590Sjkimdebug version of the code includes the debug output trace mechanism and has 895218590Sjkima 896202771Sjkimmuch larger code and data size. 897202771Sjkim 898202771Sjkim Previous Release: 899202771Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 900202771Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 901202771Sjkim Current Release: 902202771Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 903202771Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 904202771Sjkim 905202771Sjkim2) iASL Compiler/Disassembler and Tools: 906202771Sjkim 907202771SjkimNo functional changes for this release. 908202771Sjkim 909202771Sjkim---------------------------------------- 910200553Sjkim14 December 2009. Summary of changes for version 20091214: 911200553Sjkim 912200553Sjkim1) ACPI CA Core Subsystem: 913200553Sjkim 914200553SjkimEnhanced automatic data type conversions for predefined name repairs. This 915200553Sjkimchange expands the automatic repairs/conversions for predefined name return 916200553Sjkimvalues to make Integers, Strings, and Buffers fully interchangeable. Also, a 917218590SjkimBuffer can be converted to a Package of Integers if necessary. The 918218590Sjkimnsrepair.c 919200553Sjkimmodule was completely restructured. Lin Ming, Bob Moore. 920200553Sjkim 921218590SjkimImplemented automatic removal of null package elements during predefined 922218590Sjkimname 923200553Sjkimrepairs. This change will automatically remove embedded and trailing NULL 924200553Sjkimpackage elements from returned package objects that are defined to contain a 925200553Sjkimvariable number of sub-packages. The driver is then presented with a package 926200553Sjkimwith no null elements to deal with. ACPICA BZ 819. 927200553Sjkim 928200553SjkimImplemented a repair for the predefined _FDE and _GTM names. The expected 929200553Sjkimreturn value for both names is a Buffer of 5 DWORDs. This repair fixes two 930200553Sjkimpossible problems (both seen in the field), where a package of integers is 931218590Sjkimreturned, or a buffer of BYTEs is returned. With assistance from Jung-uk 932218590SjkimKim. 933200553Sjkim 934200553SjkimImplemented additional module-level code support. This change will properly 935200553Sjkimexecute module-level code that is not at the root of the namespace (under a 936200553SjkimDevice object, etc.). Now executes the code within the current scope instead 937200553Sjkimof the root. ACPICA BZ 762. Lin Ming. 938200553Sjkim 939200553SjkimFixed possible mutex acquisition errors when running _REG methods. Fixes a 940200553Sjkimproblem where mutex errors can occur when running a _REG method that is in 941200553Sjkimthe same scope as a method-defined operation region or an operation region 942200553Sjkimunder a module-level IF block. This type of code is rare, so the problem has 943200553Sjkimnot been seen before. ACPICA BZ 826. Lin Ming, Bob Moore. 944200553Sjkim 945200553SjkimFixed a possible memory leak during module-level code execution. An object 946200553Sjkimcould be leaked for each block of executed module-level code if the 947218590Sjkiminterpreter slack mode is enabled This change deletes any implicitly 948218590Sjkimreturned 949200553Sjkimobject from the module-level code block. Lin Ming. 950200553Sjkim 951200553SjkimRemoved messages for successful predefined repair(s). The repair mechanism 952200553Sjkimwas considered too wordy. Now, messages are only unconditionally emitted if 953200553Sjkimthe return object cannot be repaired. Existing messages for successful 954200553Sjkimrepairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827. 955200553Sjkim 956200553SjkimExample Code and Data Size: These are the sizes for the OS-independent 957200553Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 958218590Sjkimdebug version of the code includes the debug output trace mechanism and has 959218590Sjkima 960200553Sjkimmuch larger code and data size. 961200553Sjkim 962200553Sjkim Previous Release: 963200553Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 964200553Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 965200553Sjkim Current Release: 966200553Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 967200553Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 968200553Sjkim 969200553Sjkim2) iASL Compiler/Disassembler and Tools: 970200553Sjkim 971218590SjkimiASL: Fixed a regression introduced in 20091112 where intermediate .SRC 972218590Sjkimfiles 973200553Sjkimwere no longer automatically removed at the termination of the compile. 974200553Sjkim 975200553Sjkimacpiexec: Implemented the -f option to specify default region fill value. 976200553SjkimThis option specifies the value used to initialize buffers that simulate 977200553Sjkimoperation regions. Default value is zero. Useful for debugging problems that 978200553Sjkimdepend on a specific initial value for a region or field. 979200553Sjkim 980200553Sjkim---------------------------------------- 981199337Sjkim12 November 2009. Summary of changes for version 20091112: 982199337Sjkim 983199337Sjkim1) ACPI CA Core Subsystem: 984199337Sjkim 985199337SjkimImplemented a post-order callback to AcpiWalkNamespace. The existing 986199337Sjkiminterface only has a pre-order callback. This change adds an additional 987199337Sjkimparameter for a post-order callback which will be more useful for bus scans. 988199337SjkimACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference. 989199337Sjkim 990199337SjkimModified the behavior of the operation region memory mapping cache for 991199337SjkimSystemMemory. Ensure that the memory mappings created for operation regions 992199337Sjkimdo not cross 4K page boundaries. Crossing a page boundary while mapping 993199337Sjkimregions can cause kernel warnings on some hosts if the pages have different 994199337Sjkimattributes. Such regions are probably BIOS bugs, and this is the workaround. 995199337SjkimLinux BZ 14445. Lin Ming. 996199337Sjkim 997199337SjkimImplemented an automatic repair for predefined methods that must return 998218590Sjkimsorted lists. This change will repair (by sorting) packages returned by 999218590Sjkim_ALR, 1000218590Sjkim_PSS, and _TSS. Drivers can now assume that the packages are correctly 1001218590Sjkimsorted 1002199337Sjkimand do not contain NULL package elements. Adds one new file, 1003199337Sjkimnamespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore. 1004199337Sjkim 1005199337SjkimFixed a possible fault during predefined name validation if a return Package 1006199337Sjkimobject contains NULL elements. Also adds a warning if a NULL element is 1007218590Sjkimfollowed by any non-null elements. ACPICA BZ 813, 814. Future enhancement 1008218590Sjkimmay 1009199337Sjkiminclude repair or removal of all such NULL elements where possible. 1010199337Sjkim 1011199337SjkimImplemented additional module-level executable AML code support. This change 1012199337Sjkimwill execute module-level code that is not at the root of the namespace 1013218590Sjkim(under a Device object, etc.) at table load time. Module-level executable 1014218590SjkimAML 1015199337Sjkimcode has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming. 1016199337Sjkim 1017199337SjkimImplemented a new internal function to create Integer objects. This function 1018199337Sjkimsimplifies miscellaneous object creation code. ACPICA BZ 823. 1019199337Sjkim 1020199337SjkimReduced the severity of predefined repair messages, Warning to Info. Since 1021199337Sjkimthe object was successfully repaired, a warning is too severe. Reduced to an 1022218590Sjkiminfo message for now. These messages may eventually be changed to debug- 1023218590Sjkimonly. 1024199337SjkimACPICA BZ 812. 1025199337Sjkim 1026199337SjkimExample Code and Data Size: These are the sizes for the OS-independent 1027199337Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1028218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1029218590Sjkima 1030199337Sjkimmuch larger code and data size. 1031199337Sjkim 1032199337Sjkim Previous Release: 1033199337Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 1034199337Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 1035199337Sjkim Current Release: 1036199337Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 1037199337Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 1038199337Sjkim 1039199337Sjkim2) iASL Compiler/Disassembler and Tools: 1040199337Sjkim 1041199337SjkimiASL: Implemented Switch() with While(1) so that Break works correctly. This 1042199337Sjkimchange correctly implements the Switch operator with a surrounding While(1) 1043199337Sjkimso that the Break operator works as expected. ACPICA BZ 461. Lin Ming. 1044199337Sjkim 1045199337SjkimiASL: Added a message if a package initializer list is shorter than package 1046199337Sjkimlength. Adds a new remark for a Package() declaration if an initializer list 1047199337Sjkimexists, but is shorter than the declared length of the package. Although 1048199337Sjkimtechnically legal, this is probably a coding error and it is seen in the 1049199337Sjkimfield. ACPICA BZ 815. Lin Ming, Bob Moore. 1050199337Sjkim 1051218590SjkimiASL: Fixed a problem where the compiler could fault after the maximum 1052218590Sjkimnumber 1053199337Sjkimof errors was reached (200). 1054199337Sjkim 1055218590Sjkimacpixtract: Fixed a possible warning for pointer cast if the compiler 1056218590Sjkimwarning 1057199337Sjkimlevel set very high. 1058199337Sjkim 1059199337Sjkim---------------------------------------- 1060198237Sjkim13 October 2009. Summary of changes for version 20091013: 1061197104Sjkim 1062197104Sjkim1) ACPI CA Core Subsystem: 1063197104Sjkim 1064198237SjkimFixed a problem where an Operation Region _REG method could be executed more 1065198237Sjkimthan once. If a custom address space handler is installed by the host before 1066198237Sjkimthe "initialize operation regions" phase of the ACPICA initialization, any 1067198237Sjkim_REG methods for that address space could be executed twice. This change 1068198237Sjkimfixes the problem. ACPICA BZ 427. Lin Ming. 1069198237Sjkim 1070198237SjkimFixed a possible memory leak for the Scope() ASL operator. When the exact 1071198237Sjkiminvocation of "Scope(\)" is executed (change scope to root), one internal 1072198237Sjkimoperand object was leaked. Lin Ming. 1073198237Sjkim 1074198237SjkimImplemented a run-time repair for the _MAT predefined method. If the _MAT 1075198237Sjkimreturn value is defined as a Field object in the AML, and the field 1076218590Sjkimsize is less than or equal to the default width of an integer (32 or 1077218590Sjkim64),_MAT 1078198237Sjkimcan incorrectly return an Integer instead of a Buffer. ACPICA now 1079198237Sjkimautomatically repairs this problem. ACPICA BZ 810. 1080198237Sjkim 1081198237SjkimImplemented a run-time repair for the _BIF and _BIX predefined methods. The 1082198237Sjkim"OEM Information" field is often incorrectly returned as an Integer with 1083198237Sjkimvalue zero if the field is not supported by the platform. This is due to an 1084198237Sjkimambiguity in the ACPI specification. The field should always be a string. 1085198237SjkimACPICA now automatically repairs this problem by returning a NULL string 1086198237Sjkimwithin the returned Package. ACPICA BZ 807. 1087198237Sjkim 1088198237SjkimExample Code and Data Size: These are the sizes for the OS-independent 1089198237Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1090218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1091218590Sjkima 1092198237Sjkimmuch larger code and data size. 1093198237Sjkim 1094198237Sjkim Previous Release: 1095198237Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 1096198237Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 1097198237Sjkim Current Release: 1098198237Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 1099198237Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 1100198237Sjkim 1101198237Sjkim2) iASL Compiler/Disassembler and Tools: 1102198237Sjkim 1103198237SjkimDisassembler: Fixed a problem where references to external symbols that 1104198237Sjkimcontained one or more parent-prefixes (carats) were not handled correctly, 1105198237Sjkimpossibly causing a fault. ACPICA BZ 806. Lin Ming. 1106198237Sjkim 1107198237SjkimDisassembler: Restructured the code so that all functions that handle 1108198237Sjkimexternal symbols are in a single module. One new file is added, 1109198237Sjkimcommon/dmextern.c. 1110198237Sjkim 1111198237SjkimAML Debugger: Added a max count argument for the Batch command (which 1112198237Sjkimexecutes multiple predefined methods within the namespace.) 1113198237Sjkim 1114198237SjkimiASL: Updated the compiler documentation (User Reference.) Available at 1115198237Sjkimhttp://www.acpica.org/documentation/. ACPICA BZ 750. 1116198237Sjkim 1117198237SjkimAcpiXtract: Updated for Lint and other formatting changes. Close all open 1118198237Sjkimfiles. 1119198237Sjkim 1120198237Sjkim---------------------------------------- 1121198237Sjkim03 September 2009. Summary of changes for version 20090903: 1122198237Sjkim 1123198237Sjkim1) ACPI CA Core Subsystem: 1124198237Sjkim 1125197104SjkimFor Windows Vista compatibility, added the automatic execution of an _INI 1126197104Sjkimmethod located at the namespace root (\_INI). This method is executed at 1127197104Sjkimtable load time. This support is in addition to the automatic execution of 1128197104Sjkim\_SB._INI. Lin Ming. 1129197104Sjkim 1130197104SjkimFixed a possible memory leak in the interpreter for AML package objects if 1131197104Sjkimthe package initializer list is longer than the defined size of the package. 1132197104SjkimThis apparently can only happen if the BIOS changes the package size on the 1133197104Sjkimfly (seen in a _PSS object), as ASL compilers do not allow this. The 1134218590Sjkiminterpreter will truncate the package to the defined size (and issue an 1135218590Sjkimerror 1136218590Sjkimmessage), but previously could leave the extra objects undeleted if they 1137218590Sjkimwere 1138197104Sjkimpre-created during the argument processing (such is the case if the package 1139197104Sjkimconsists of a number of sub-packages as in the _PSS.) ACPICA BZ 805. 1140197104Sjkim 1141197104SjkimFixed a problem seen when a Buffer or String is stored to itself via ASL. 1142197104SjkimThis has been reported in the field. Previously, ACPICA would zero out the 1143197104Sjkimbuffer/string. Now, the operation is treated as a noop. Provides Windows 1144197104Sjkimcompatibility. ACPICA BZ 803. Lin Ming. 1145197104Sjkim 1146197104SjkimRemoved an extraneous error message for ASL constructs of the form 1147197104SjkimStore(LocalX,LocalX) when LocalX is uninitialized. These curious statements 1148197104Sjkimare seen in many BIOSs and are once again treated as NOOPs and no error is 1149197104Sjkimemitted when they are encountered. ACPICA BZ 785. 1150197104Sjkim 1151197104SjkimFixed an extraneous warning message if a _DSM reserved method returns a 1152197104SjkimPackage object. _DSM can return any type of object, so validation on the 1153197104Sjkimreturn type cannot be performed. ACPICA BZ 802. 1154197104Sjkim 1155197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 1156197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1157218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1158218590Sjkima 1159197104Sjkimmuch larger code and data size. 1160197104Sjkim 1161197104Sjkim Previous Release: 1162197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 1163197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 1164197104Sjkim Current Release: 1165197104Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 1166197104Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 1167197104Sjkim 1168197104Sjkim2) iASL Compiler/Disassembler and Tools: 1169197104Sjkim 1170197104SjkimiASL: Fixed a problem with the use of the Alias operator and Resource 1171197104SjkimTemplates. The correct alias is now constructed and no error is emitted. 1172197104SjkimACPICA BZ 738. 1173197104Sjkim 1174197104SjkimiASL: Implemented the -I option to specify additional search directories for 1175197104Sjkiminclude files. Allows multiple additional search paths for include files. 1176197104SjkimDirectories are searched in the order specified on the command line (after 1177197104Sjkimthe local directory is searched.) ACPICA BZ 800. 1178197104Sjkim 1179197104SjkimiASL: Fixed a problem where the full pathname for include files was not 1180197104Sjkimemitted for warnings/errors. This caused the IDE support to not work 1181197104Sjkimproperly. ACPICA BZ 765. 1182197104Sjkim 1183197104SjkimiASL: Implemented the -@ option to specify a Windows-style response file 1184197104Sjkimcontaining additional command line options. ACPICA BZ 801. 1185197104Sjkim 1186197104SjkimAcpiExec: Added support to load multiple AML files simultaneously (such as a 1187197104SjkimDSDT and multiple SSDTs). Also added support for wildcards within the AML 1188197104Sjkimpathname. These features allow all machine tables to be easily loaded and 1189197104Sjkimdebugged together. ACPICA BZ 804. 1190197104Sjkim 1191197104SjkimDisassembler: Added missing support for disassembly of HEST table Error Bank 1192197104Sjkimsubtables. 1193197104Sjkim 1194197104Sjkim---------------------------------------- 1195197104Sjkim30 July 2009. Summary of changes for version 20090730: 1196197104Sjkim 1197197104SjkimThe ACPI 4.0 implementation for ACPICA is complete with this release. 1198197104Sjkim 1199197104Sjkim1) ACPI CA Core Subsystem: 1200197104Sjkim 1201197104SjkimACPI 4.0: Added header file support for all new and changed ACPI tables. 1202197104SjkimCompletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new 1203197104Sjkimfor ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, 1204197104SjkimEINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There 1205197104Sjkimhave been some ACPI 4.0 changes to other existing tables. Split the large 1206197104Sjkimactbl1.h header into the existing actbl2.h header. ACPICA BZ 774. 1207197104Sjkim 1208218590SjkimACPI 4.0: Implemented predefined name validation for all new names. There 1209218590Sjkimare 1210218590Sjkim31 new names in ACPI 4.0. The predefined validation module was split into 1211218590Sjkimtwo 1212197104Sjkimfiles. The new file is namespace/nsrepair.c. ACPICA BZ 770. 1213197104Sjkim 1214197104SjkimImplemented support for so-called "module-level executable code". This is 1215218590Sjkimexecutable AML code that exists outside of any control method and is 1216218590Sjkimintended 1217218590Sjkimto be executed at table load time. Although illegal since ACPI 2.0, this 1218218590Sjkimtype 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. 1234218590SjkimThe _HID/_CID matching was broken and no longer matched IDs correctly. 1235218590SjkimACPICA 1236197104SjkimBZ 793. 1237197104Sjkim 1238197104SjkimFixed a problem with AcpiReset where the reset would silently fail if the 1239197104Sjkimregister was one of the protected I/O ports. AcpiReset now bypasses the port 1240197104Sjkimvalidation mechanism. This may eventually be driven into the AcpiRead/Write 1241197104Sjkiminterfaces. 1242197104Sjkim 1243197104SjkimFixed a regression related to the recent update of the AcpiRead/Write 1244197104Sjkiminterfaces. A sleep/suspend could fail if the optional PM2 Control register 1245197104Sjkimdoes not exist during an attempt to write the Bus Master Arbitration bit. 1246197104Sjkim(However, some hosts already delete the code that writes this bit, and the 1247197104Sjkimcode may in fact be obsolete at this date.) ACPICA BZ 799. 1248197104Sjkim 1249218590SjkimFixed a problem where AcpiTerminate could fault if inadvertently called 1250218590Sjkimtwice 1251197104Sjkimin succession. ACPICA BZ 795. 1252197104Sjkim 1253197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 1254197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1255218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1256218590Sjkima 1257197104Sjkimmuch larger code and data size. 1258197104Sjkim 1259197104Sjkim Previous Release: 1260197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 1261197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 1262197104Sjkim Current Release: 1263197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 1264197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 1265197104Sjkim 1266197104Sjkim2) iASL Compiler/Disassembler and Tools: 1267197104Sjkim 1268197104SjkimACPI 4.0: Implemented disassembler support for all new ACPI tables and 1269197104Sjkimchanges to existing tables. ACPICA BZ 775. 1270197104Sjkim 1271197104Sjkim---------------------------------------- 1272197104Sjkim25 June 2009. Summary of changes for version 20090625: 1273197104Sjkim 1274197104SjkimThe ACPI 4.0 Specification was released on June 16 and is available at 1275197104Sjkimwww.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will 1276197104Sjkimcontinue for the next few releases. 1277197104Sjkim 1278197104Sjkim1) ACPI CA Core Subsystem: 1279197104Sjkim 1280197104SjkimACPI 4.0: Implemented interpreter support for the IPMI operation region 1281197104Sjkimaddress space. Includes support for bi-directional data buffers and an IPMI 1282197104Sjkimaddress space handler (to be installed by an IPMI device driver.) ACPICA BZ 1283197104Sjkim773. Lin Ming. 1284197104Sjkim 1285197104SjkimACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes 1286197104Sjkimsupport in both the header files and the disassembler. 1287197104Sjkim 1288197104SjkimCompleted a major update for the AcpiGetObjectInfo external interface. 1289197104SjkimChanges include: 1290197104Sjkim - Support for variable, unlimited length HID, UID, and CID strings. 1291197104Sjkim - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) 1292197104Sjkim - Call the _SxW power methods on behalf of a device object. 1293197104Sjkim - Determine if a device is a PCI root bridge. 1294197104Sjkim - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. 1295197104SjkimThese changes will require an update to all callers of this interface. See 1296197104Sjkimthe updated ACPICA Programmer Reference for details. One new source file has 1297197104Sjkimbeen added - utilities/utids.c. ACPICA BZ 368, 780. 1298197104Sjkim 1299197104SjkimUpdated the AcpiRead and AcpiWrite external interfaces to support 64-bit 1300197104Sjkimtransfers. The Value parameter has been extended from 32 bits to 64 bits in 1301218590Sjkimorder to support new ACPI 4.0 tables. These changes will require an update 1302218590Sjkimto 1303197104Sjkimall callers of these interfaces. See the ACPICA Programmer Reference for 1304197104Sjkimdetails. ACPICA BZ 768. 1305197104Sjkim 1306197104SjkimFixed several problems with AcpiAttachData. The handler was not invoked when 1307197104Sjkimthe host node was deleted. The data sub-object was not automatically deleted 1308197104Sjkimwhen the host node was deleted. The interface to the handler had an unused 1309197104Sjkimparameter, this was removed. ACPICA BZ 778. 1310197104Sjkim 1311197104SjkimEnhanced the function that dumps ACPI table headers. All non-printable 1312197104Sjkimcharacters in the string fields are now replaced with '?' (Signature, OemId, 1313197104SjkimOemTableId, and CompilerId.) ACPI tables with non-printable characters in 1314197104Sjkimthese fields are occasionally seen in the field. ACPICA BZ 788. 1315197104Sjkim 1316197104SjkimFixed a problem with predefined method repair code where the code that 1317197104Sjkimattempts to repair/convert an object of incorrect type is only executed on 1318197104Sjkimthe first time the predefined method is called. The mechanism that disables 1319197104Sjkimwarnings on subsequent calls was interfering with the repair mechanism. 1320197104SjkimACPICA BZ 781. 1321197104Sjkim 1322197104SjkimFixed a possible memory leak in the predefined validation/repair code when a 1323197104Sjkimbuffer is automatically converted to an expected string object. 1324197104Sjkim 1325197104SjkimRemoved obsolete 16-bit files from the distribution and from the current git 1326197104Sjkimtree head. ACPICA BZ 776. 1327197104Sjkim 1328197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 1329197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1330218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1331218590Sjkima 1332197104Sjkimmuch larger code and data size. 1333197104Sjkim 1334197104Sjkim Previous Release: 1335197104Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 1336197104Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 1337197104Sjkim Current Release: 1338197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 1339197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 1340197104Sjkim 1341197104Sjkim2) iASL Compiler/Disassembler and Tools: 1342197104Sjkim 1343197104SjkimACPI 4.0: iASL and Disassembler - implemented support for the new IPMI 1344197104Sjkimoperation region keyword. ACPICA BZ 771, 772. Lin Ming. 1345197104Sjkim 1346197104SjkimACPI 4.0: iASL - implemented compile-time validation support for all new 1347197104Sjkimpredefined names and control methods (31 total). ACPICA BZ 769. 1348197104Sjkim 1349197104Sjkim---------------------------------------- 1350193267Sjkim21 May 2009. Summary of changes for version 20090521: 1351193267Sjkim 1352193267Sjkim1) ACPI CA Core Subsystem: 1353193267Sjkim 1354193267SjkimDisabled the preservation of the SCI enable bit in the PM1 control register. 1355218590SjkimThe SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to 1356218590Sjkimbe 1357193267Sjkima "preserved" bit - "OSPM always preserves this bit position", section 1358193267Sjkim4.7.3.2.1. However, some machines fail if this bit is in fact preserved 1359193267Sjkimbecause the bit needs to be explicitly set by the OS as a workaround. No 1360193267Sjkimmachines fail if the bit is not preserved. Therefore, ACPICA no longer 1361193267Sjkimattempts to preserve this bit. 1362193267Sjkim 1363193267SjkimFixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or 1364193267Sjkimincorrectly formed _PRT package could cause a fault. Added validation to 1365193267Sjkimensure that each package element is actually a sub-package. 1366193267Sjkim 1367193267SjkimImplemented a new interface to install or override a single control method, 1368218590SjkimAcpiInstallMethod. This interface is useful when debugging in order to 1369218590Sjkimrepair 1370193267Sjkiman existing method or to install a missing method without having to override 1371193267Sjkimthe entire ACPI table. See the ACPICA Programmer Reference for use and 1372193267Sjkimexamples. Lin Ming, Bob Moore. 1373193267Sjkim 1374193267SjkimFixed several reference count issues with the DdbHandle object that is 1375193267Sjkimcreated from a Load or LoadTable operator. Prevent premature deletion of the 1376193267Sjkimobject. Also, mark the object as invalid once the table has been unloaded. 1377193267SjkimThis is needed because the handle itself may not be deleted after the table 1378193267Sjkimunload, depending on whether it has been stored in a named object by the 1379193267Sjkimcaller. Lin Ming. 1380193267Sjkim 1381193267SjkimFixed a problem with Mutex Sync Levels. Fixed a problem where if multiple 1382193267Sjkimmutexes of the same sync level are acquired but then not released in strict 1383218590Sjkimopposite order, the internally maintained Current Sync Level becomes 1384218590Sjkimconfused 1385193267Sjkimand can cause subsequent execution errors. ACPICA BZ 471. 1386193267Sjkim 1387193267SjkimChanged the allowable release order for ASL mutex objects. The ACPI 4.0 1388193267Sjkimspecification has been changed to make the SyncLevel for mutex objects more 1389193267Sjkimuseful. When releasing a mutex, the SyncLevel of the mutex must now be the 1390193267Sjkimsame as the current sync level. This makes more sense than the previous rule 1391193267Sjkim(SyncLevel less than or equal). This change updates the code to match the 1392193267Sjkimspecification. 1393193267Sjkim 1394193267SjkimFixed a problem with the local version of the AcpiOsPurgeCache function. The 1395193267Sjkim(local) cache must be locked during all cache object deletions. Andrew 1396193267SjkimBaumann. 1397193267Sjkim 1398193267SjkimUpdated the Load operator to use operation region interfaces. This replaces 1399193267Sjkimdirect memory mapping with region access calls. Now, all region accesses go 1400193267Sjkimthrough the installed region handler as they should. 1401193267Sjkim 1402193267SjkimSimplified and optimized the NsGetNextNode function. Reduced parameter count 1403193267Sjkimand reduced code for this frequently used function. 1404193267Sjkim 1405193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1406193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1407218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1408218590Sjkima 1409193267Sjkimmuch larger code and data size. 1410193267Sjkim 1411193267Sjkim Previous Release: 1412193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1413193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1414193267Sjkim Current Release: 1415193267Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 1416193267Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 1417193267Sjkim 1418193267Sjkim2) iASL Compiler/Disassembler and Tools: 1419193267Sjkim 1420193267SjkimDisassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems 1421193267Sjkimwith sub-table disassembly and handling invalid sub-tables. Attempt recovery 1422193267Sjkimafter an invalid sub-table ID. 1423193267Sjkim 1424193267Sjkim---------------------------------------- 1425193267Sjkim22 April 2009. Summary of changes for version 20090422: 1426193267Sjkim 1427193267Sjkim1) ACPI CA Core Subsystem: 1428193267Sjkim 1429193267SjkimFixed a compatibility issue with the recently released I/O port protection 1430193267Sjkimmechanism. For windows compatibility, 1) On a port protection violation, 1431193267Sjkimsimply ignore the request and do not return an exception (allow the control 1432193267Sjkimmethod to continue execution.) 2) If only part of the request overlaps a 1433218590Sjkimprotected port, read/write the individual ports that are not protected. 1434218590SjkimLinux 1435193267SjkimBZ 13036. Lin Ming 1436193267Sjkim 1437218590SjkimEnhanced the execution of the ASL/AML BreakPoint operator so that it 1438218590Sjkimactually 1439193267Sjkimbreaks into the AML debugger if the debugger is present. This matches the 1440193267SjkimACPI-defined behavior. 1441193267Sjkim 1442193267SjkimFixed several possible warnings related to the use of the configurable 1443193267SjkimACPI_THREAD_ID. This type can now be configured as either an integer or a 1444193267Sjkimpointer with no warnings. Also fixes several warnings in printf-like 1445193267Sjkimstatements for the 64-bit build when the type is configured as a pointer. 1446193267SjkimACPICA BZ 766, 767. 1447193267Sjkim 1448193267SjkimFixed a number of possible warnings when compiling with gcc 4+ (depending on 1449193267Sjkimwarning options.) Examples include printf formats, aliasing, unused globals, 1450193267Sjkimmissing prototypes, missing switch default statements, use of non-ANSI 1451218590Sjkimlibrary functions, use of non-ANSI constructs. See generate/unix/Makefile 1452218590Sjkimfor 1453193267Sjkima list of warning options used with gcc 3 and 4. ACPICA BZ 735. 1454193267Sjkim 1455193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1456193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1457218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1458218590Sjkima 1459193267Sjkimmuch larger code and data size. 1460193267Sjkim 1461193267Sjkim Previous Release: 1462193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1463193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1464193267Sjkim Current Release: 1465193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1466193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1467193267Sjkim 1468193267Sjkim2) iASL Compiler/Disassembler and Tools: 1469193267Sjkim 1470218590SjkimiASL: Fixed a generation warning from Bison 2.3 and fixed several warnings 1471218590Sjkimon 1472193267Sjkimthe 64-bit build. 1473193267Sjkim 1474218590SjkimiASL: Fixed a problem where the Unix/Linux versions of the compiler could 1475218590Sjkimnot 1476193267Sjkimcorrectly digest Windows/DOS formatted files (with CR/LF). 1477193267Sjkim 1478193267SjkimiASL: Added a new option for "quiet mode" (-va) that produces only the 1479193267Sjkimcompilation summary, not individual errors and warnings. Useful for large 1480193267Sjkimbatch compilations. 1481193267Sjkim 1482193267SjkimAcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex 1483193267Sjkimtimeout that can be used to detect hang conditions during execution of AML 1484193267Sjkimcode (includes both internal semaphores and AML-defined mutexes and events.) 1485193267Sjkim 1486193267SjkimAdded new makefiles for the generation of acpica in a generic unix-like 1487193267Sjkimenvironment. These makefiles are intended to generate the acpica tools and 1488193267Sjkimutilities from the original acpica git source tree structure. 1489193267Sjkim 1490193267SjkimTest Suites: Updated and cleaned up the documentation files. Updated the 1491193267Sjkimcopyrights to 2009, affecting all source files. Use the new version of iASL 1492193267Sjkimwith quiet mode. Increased the number of available semaphores in the Windows 1493193267SjkimOSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added 1494193267Sjkiman alternate implementation of the semaphore timeout to allow aslts to 1495193267Sjkimexecute fully on Cygwin. 1496193267Sjkim 1497193267Sjkim---------------------------------------- 1498193267Sjkim20 March 2009. Summary of changes for version 20090320: 1499193267Sjkim 1500193267Sjkim1) ACPI CA Core Subsystem: 1501193267Sjkim 1502193267SjkimFixed a possible race condition between AcpiWalkNamespace and dynamic table 1503218590Sjkimunloads. Added a reader/writer locking mechanism to allow multiple 1504218590Sjkimconcurrent 1505218590Sjkimnamespace walks (readers), but block a dynamic table unload until it can 1506218590Sjkimgain 1507193267Sjkimexclusive write access to the namespace. This fixes a problem where a table 1508193267Sjkimunload could (possibly catastrophically) delete the portion of the namespace 1509193267Sjkimthat is currently being examined by a walk. Adds a new file, utlock.c, that 1510193267Sjkimimplements the reader/writer lock mechanism. ACPICA BZ 749. 1511193267Sjkim 1512193267SjkimFixed a regression introduced in version 20090220 where a change to the FADT 1513193267Sjkimhandling could cause the ACPICA subsystem to access non-existent I/O ports. 1514193267Sjkim 1515193267SjkimModified the handling of FADT register and table (FACS/DSDT) addresses. The 1516193267SjkimFADT can contain both 32-bit and 64-bit versions of these addresses. 1517193267SjkimPreviously, the 64-bit versions were favored, meaning that if both 32 and 64 1518193267Sjkimversions were valid, but not equal, the 64-bit version was used. This was 1519193267Sjkimfound to cause some machines to fail. Now, in this case, the 32-bit version 1520193267Sjkimis used instead. This now matches the Windows behavior. 1521193267Sjkim 1522193267SjkimImplemented a new mechanism to protect certain I/O ports. Provides Microsoft 1523193267Sjkimcompatibility and protects the standard PC I/O ports from access via AML 1524193267Sjkimcode. Adds a new file, hwvalid.c 1525193267Sjkim 1526193267SjkimFixed a possible extraneous warning message from the FADT support. The 1527193267Sjkimmessage warns of a 32/64 length mismatch between the legacy and GAS 1528193267Sjkimdefinitions for a register. 1529193267Sjkim 1530193267SjkimRemoved the obsolete AcpiOsValidateAddress OSL interface. This interface is 1531193267Sjkimmade obsolete by the port protection mechanism above. It was previously used 1532193267Sjkimto validate the entire address range of an operation region, which could be 1533193267Sjkimincorrect if the range included illegal ports, but fields within the 1534193267Sjkimoperation region did not actually access those ports. Validation is now 1535193267Sjkimperformed on a per-field basis instead of the entire region. 1536193267Sjkim 1537193267SjkimModified the handling of the PM1 Status Register ignored bit (bit 11.) 1538193267SjkimIgnored bits must be "preserved" according to the ACPI spec. Usually, this 1539193267Sjkimmeans a read/modify/write when writing to the register. However, for status 1540218590Sjkimregisters, writing a one means clear the event. Writing a zero means 1541218590Sjkimpreserve 1542193267Sjkimthe event (do not clear.) This behavior is clarified in the ACPI 4.0 spec, 1543193267Sjkimand the ACPICA code now simply always writes a zero to the ignored bit. 1544193267Sjkim 1545193267SjkimModified the handling of ignored bits for the PM1 A/B Control Registers. As 1546193267Sjkimper the ACPI specification, for the control registers, preserve 1547193267Sjkim(read/modify/write) all bits that are defined as either reserved or ignored. 1548193267Sjkim 1549193267SjkimUpdated the handling of write-only bits in the PM1 A/B Control Registers. 1550193267SjkimWhen reading the register, zero the write-only bits as per the ACPI spec. 1551193267SjkimACPICA BZ 443. Lin Ming. 1552193267Sjkim 1553193267SjkimRemoved "Linux" from the list of supported _OSI strings. Linux no longer 1554193267Sjkimwants to reply true to this request. The Windows strings are the only paths 1555193267Sjkimthrough the AML that are tested and known to work properly. 1556193267Sjkim 1557193267Sjkim Previous Release: 1558193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1559193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1560193267Sjkim Current Release: 1561193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1562193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1563193267Sjkim 1564193267Sjkim2) iASL Compiler/Disassembler and Tools: 1565193267Sjkim 1566193267SjkimAcpiexec: Split the large aeexec.c file into two new files, aehandlers.c and 1567193267Sjkimaetables.c 1568193267Sjkim 1569193267Sjkim---------------------------------------- 1570193267Sjkim20 February 2009. Summary of changes for version 20090220: 1571193267Sjkim 1572193267Sjkim1) ACPI CA Core Subsystem: 1573193267Sjkim 1574193267SjkimOptimized the ACPI register locking. Removed locking for reads from the ACPI 1575193267Sjkimbit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is 1576193267Sjkimnot required when reading the single-bit registers. The 1577193267SjkimAcpiGetRegisterUnlocked function is no longer needed and has been removed. 1578193267SjkimThis will improve performance for reads on these registers. ACPICA BZ 760. 1579193267Sjkim 1580193267SjkimFixed the parameter validation for AcpiRead/Write. Now return 1581218590SjkimAE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS 1582218590Sjkimif 1583193267Sjkimthe register has an address of zero. Previously, these cases simply returned 1584193267SjkimAE_OK. For optional registers such as PM1B status/enable/control, the caller 1585193267Sjkimshould check for a valid register address before calling. ACPICA BZ 748. 1586193267Sjkim 1587193267SjkimRenamed the external ACPI bit register access functions. Renamed 1588193267SjkimAcpiGetRegister and AcpiSetRegister to clarify the purpose of these 1589193267Sjkimfunctions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister. 1590193267SjkimAlso, restructured the code for these functions by simplifying the code path 1591193267Sjkimand condensing duplicate code to reduce code size. 1592193267Sjkim 1593193267SjkimAdded new functions to transparently handle the possibly split PM1 A/B 1594193267Sjkimregisters. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions 1595218590Sjkimnow handle the split registers for PM1 Status, Enable, and Control. ACPICA 1596218590SjkimBZ 1597193267Sjkim746. 1598193267Sjkim 1599193267SjkimAdded a function to handle the PM1 control registers, AcpiHwWritePm1Control. 1600218590SjkimThis function writes both of the PM1 control registers (A/B). These 1601218590Sjkimregisters 1602193267Sjkimare different than the PM1 A/B status and enable registers in that different 1603193267Sjkimvalues can be written to the A/B registers. Most notably, the SLP_TYP bits 1604218590Sjkimcan be different, as per the values returned from the _Sx predefined 1605218590Sjkimmethods. 1606193267Sjkim 1607193267SjkimRemoved an extra register write within AcpiHwClearAcpiStatus. This function 1608193267Sjkimwas writing an optional PM1B status register twice. The existing call to the 1609193267Sjkimlow-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B 1610193267Sjkimregister. ACPICA BZ 751. 1611193267Sjkim 1612218590SjkimSplit out the PM1 Status registers from the FADT. Added new globals for 1613218590Sjkimthese 1614193267Sjkimregisters (A/B), similar to the way the PM1 Enable registers are handled. 1615193267SjkimInstead of overloading the FADT Event Register blocks. This makes the code 1616193267Sjkimclearer and less prone to error. 1617193267Sjkim 1618218590SjkimFixed the warning message for when the platform contains too many ACPI 1619218590Sjkimtables 1620218590Sjkimfor the default size of the global root table data structure. The 1621218590Sjkimcalculation 1622193267Sjkimfor the truncation value was incorrect. 1623193267Sjkim 1624193267SjkimRemoved the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this 1625193267Sjkimobsolete macro, since it is now a simple reference to ->common.type. There 1626193267Sjkimwere about 150 invocations of the macro across 41 files. ACPICA BZ 755. 1627193267Sjkim 1628193267SjkimRemoved the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as 1629193267SjkimTYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to 1630193267Sjkimsimply SLEEP_TYPE. ACPICA BZ 754. 1631193267Sjkim 1632193267SjkimConditionally compile the AcpiSetFirmwareWakingVector64 function. This 1633193267Sjkimfunction is only needed on 64-bit host operating systems and is thus not 1634193267Sjkimincluded for 32-bit hosts. 1635193267Sjkim 1636218590SjkimDebug output: print the input and result for invocations of the _OSI 1637218590Sjkimreserved 1638193267Sjkimcontrol method via the ACPI_LV_INFO debug level. Also, reduced some of the 1639193267Sjkimverbosity of this debug level. Len Brown. 1640193267Sjkim 1641193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1642193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1643218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1644218590Sjkima 1645193267Sjkimmuch larger code and data size. 1646193267Sjkim 1647193267Sjkim Previous Release: 1648193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1649193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1650193267Sjkim Current Release: 1651193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1652193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1653193267Sjkim 1654193267Sjkim2) iASL Compiler/Disassembler and Tools: 1655193267Sjkim 1656193267SjkimDisassembler: Decode the FADT PM_Profile field. Emit ascii names for the 1657193267Sjkimvarious legal performance profiles. 1658193267Sjkim 1659193267Sjkim---------------------------------------- 1660193267Sjkim23 January 2009. Summary of changes for version 20090123: 1661193267Sjkim 1662193267Sjkim1) ACPI CA Core Subsystem: 1663193267Sjkim 1664193267SjkimAdded the 2009 copyright to all module headers and signons. This affects 1665193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1666193267Sjkimthe tools/utilities. 1667193267Sjkim 1668193267SjkimImplemented a change to allow the host to override any ACPI table, including 1669218590Sjkimdynamically loaded tables. Previously, only the DSDT could be replaced by 1670218590Sjkimthe 1671193267Sjkimhost. With this change, the AcpiOsTableOverride interface is called for each 1672193267Sjkimtable found in the RSDT/XSDT during ACPICA initialization, and also whenever 1673193267Sjkima table is dynamically loaded via the AML Load operator. 1674193267Sjkim 1675193267SjkimUpdated FADT flag definitions, especially the Boot Architecture flags. 1676193267Sjkim 1677193267SjkimDebugger: For the Find command, automatically pad the input ACPI name with 1678193267Sjkimunderscores if the name is shorter than 4 characters. This enables a match 1679193267Sjkimwith the actual namespace entry which is itself padded with underscores. 1680193267Sjkim 1681193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1682193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1683218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1684218590Sjkima 1685193267Sjkimmuch larger code and data size. 1686193267Sjkim 1687193267Sjkim Previous Release: 1688193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 1689193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1690193267Sjkim Current Release: 1691193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1692193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1693193267Sjkim 1694193267Sjkim2) iASL Compiler/Disassembler and Tools: 1695193267Sjkim 1696193267SjkimFix build error under Bison-2.4. 1697193267Sjkim 1698193267SjkimDissasembler: Enhanced FADT support. Added decoding of the Boot Architecture 1699193267Sjkimflags. Now decode all flags, regardless of the FADT version. Flag output 1700193267Sjkimincludes the FADT version which first defined each flag. 1701193267Sjkim 1702193267SjkimThe iASL -g option now dumps the RSDT to a file (in addition to the FADT and 1703193267SjkimDSDT). Windows only. 1704193267Sjkim 1705193267Sjkim---------------------------------------- 1706193267Sjkim04 December 2008. Summary of changes for version 20081204: 1707193267Sjkim 1708193267Sjkim1) ACPI CA Core Subsystem: 1709193267Sjkim 1710193267SjkimThe ACPICA Programmer Reference has been completely updated and revamped for 1711193267Sjkimthis release. This includes updates to the external interfaces, OSL 1712193267Sjkiminterfaces, the overview sections, and the debugger reference. 1713193267Sjkim 1714193267SjkimSeveral new ACPICA interfaces have been implemented and documented in the 1715193267Sjkimprogrammer reference: 1716193267SjkimAcpiReset - Writes the reset value to the FADT-defined reset register. 1717193267SjkimAcpiDisableAllGpes - Disable all available GPEs. 1718193267SjkimAcpiEnableAllRuntimeGpes - Enable all available runtime GPEs. 1719193267SjkimAcpiGetGpeDevice - Get the GPE block device associated with a GPE. 1720193267SjkimAcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs. 1721193267SjkimAcpiRead - Low-level read ACPI register (was HwLowLevelRead.) 1722193267SjkimAcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.) 1723193267Sjkim 1724193267SjkimMost of the public ACPI hardware-related interfaces have been moved to a new 1725193267Sjkimfile, components/hardware/hwxface.c 1726193267Sjkim 1727193267SjkimEnhanced the FADT parsing and low-level ACPI register access: The ACPI 1728193267Sjkimregister lengths within the FADT are now used, and the low level ACPI 1729193267Sjkimregister access no longer hardcodes the ACPI register lengths. Given that 1730218590Sjkimthere may be some risk in actually trusting the FADT register lengths, a 1731218590Sjkimrun- 1732193267Sjkimtime option was added to fall back to the default hardcoded lengths if the 1733193267SjkimFADT proves to contain incorrect values - UseDefaultRegisterWidths. This 1734193267Sjkimoption is set to true for now, and a warning is issued if a suspicious FADT 1735193267Sjkimregister length is overridden with the default value. 1736193267Sjkim 1737193267SjkimFixed a reference count issue in NsRepairObject. This problem was introduced 1738193267Sjkimin version 20081031 as part of a fix to repair Buffer objects within 1739193267SjkimPackages. Lin Ming. 1740193267Sjkim 1741193267SjkimAdded semaphore support to the Linux/Unix application OS-services layer 1742193267Sjkim(OSL). ACPICA BZ 448. Lin Ming. 1743193267Sjkim 1744218590SjkimAdded the ACPI_MUTEX_TYPE configuration option to select whether mutexes 1745218590Sjkimwill 1746193267Sjkimbe implemented in the OSL, or will binary semaphores be used instead. 1747193267Sjkim 1748193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1749193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1750218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1751218590Sjkima 1752193267Sjkimmuch larger code and data size. 1753193267Sjkim 1754193267Sjkim Previous Release: 1755193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1756193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1757193267Sjkim Current Release: 1758193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 1759193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1760193267Sjkim 1761193267Sjkim2) iASL Compiler/Disassembler and Tools: 1762193267Sjkim 1763218590SjkimiASL: Completed the '-e' option to include additional ACPI tables in order 1764218590Sjkimto 1765193267Sjkimaid with disassembly and External statement generation. ACPICA BZ 742. Lin 1766193267SjkimMing. 1767193267Sjkim 1768193267SjkimiASL: Removed the "named object in while loop" error. The compiler cannot 1769193267Sjkimdetermine how many times a loop will execute. ACPICA BZ 730. 1770193267Sjkim 1771193267SjkimDisassembler: Implemented support for FADT revision 2 (MS extension). ACPICA 1772193267SjkimBZ 743. 1773193267Sjkim 1774193267SjkimDisassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG). 1775193267Sjkim 1776193267Sjkim---------------------------------------- 1777193267Sjkim31 October 2008. Summary of changes for version 20081031: 1778193267Sjkim 1779193267Sjkim1) ACPI CA Core Subsystem: 1780193267Sjkim 1781218590SjkimRestructured the ACPICA header files into public/private. acpi.h now 1782218590Sjkimincludes 1783193267Sjkimonly the "public" acpica headers. All other acpica headers are "private" and 1784193267Sjkimshould not be included by acpica users. One new file, accommon.h is used to 1785193267Sjkiminclude the commonly used private headers for acpica code generation. Future 1786193267Sjkimplans include moving all private headers to a new subdirectory. 1787193267Sjkim 1788193267SjkimImplemented an automatic Buffer->String return value conversion for 1789193267Sjkimpredefined ACPI methods. For these methods (such as _BIF), added automatic 1790193267Sjkimconversion for return objects that are required to be a String, but a Buffer 1791193267Sjkimwas found instead. This can happen when reading string battery data from an 1792193267Sjkimoperation region, because it used to be difficult to convert the data from 1793193267Sjkimbuffer to string from within the ASL. Ensures that the host OS is provided 1794193267Sjkimwith a valid null-terminated string. Linux BZ 11822. 1795193267Sjkim 1796193267SjkimUpdated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector 1797193267Sjkiminto two: one for the 32-bit vector, another for the 64-bit vector. This is 1798193267Sjkimrequired because the host OS must setup the wake much differently for each 1799218590Sjkimvector (real vs. protected mode, etc.) and the interface itself should not 1800218590Sjkimbe 1801193267Sjkimdeciding which vector to use. Also, eliminated the GetFirmwareWakingVector 1802193267Sjkiminterface, as it served no purpose (only the firmware reads the vector, OS 1803193267Sjkimonly writes the vector.) ACPICA BZ 731. 1804193267Sjkim 1805193267SjkimImplemented a mechanism to escape infinite AML While() loops. Added a loop 1806193267Sjkimcounter to force exit from AML While loops if the count becomes too large. 1807193267SjkimThis can occur in poorly written AML when the hardware does not respond 1808193267Sjkimwithin a while loop and the loop does not implement a timeout. The maximum 1809193267Sjkimloop count is configurable. A new exception code is returned when a loop is 1810193267Sjkimbroken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore. 1811193267Sjkim 1812193267SjkimOptimized the execution of AML While loops. Previously, a control state 1813193267Sjkimobject was allocated and freed for each execution of the loop. The 1814193267Sjkimoptimization is to simply reuse the control state for each iteration. This 1815193267Sjkimspeeds up the raw loop execution time by about 5%. 1816193267Sjkim 1817193267SjkimEnhanced the implicit return mechanism. For Windows compatibility, return an 1818193267Sjkimimplicit integer of value zero for methods that contain no executable code. 1819193267SjkimSuch methods are seen in the field as stubs (presumably), and can cause 1820193267Sjkimdrivers to fail if they expect a return value. Lin Ming. 1821193267Sjkim 1822193267SjkimAllow multiple backslashes as root prefixes in namepaths. In a fully 1823193267Sjkimqualified namepath, allow multiple backslash prefixes. This can happen (and 1824193267Sjkimis seen in the field) because of the use of a double-backslash in strings 1825193267Sjkim(since backslash is the escape character) causing confusion. ACPICA BZ 739 1826193267SjkimLin Ming. 1827193267Sjkim 1828193267SjkimEmit a warning if two different FACS or DSDT tables are discovered in the 1829193267SjkimFADT. Checks if there are two valid but different addresses for the FACS and 1830193267SjkimDSDT within the FADT (mismatch between the 32-bit and 64-bit fields.) 1831193267Sjkim 1832193267SjkimConsolidated the method argument count validation code. Merged the code that 1833193267Sjkimvalidates control method argument counts into the predefined validation 1834193267Sjkimmodule. Eliminates possible multiple warnings for incorrect argument counts. 1835193267Sjkim 1836193267SjkimImplemented ACPICA example code. Includes code for ACPICA initialization, 1837193267Sjkimhandler installation, and calling a control method. Available at 1838193267Sjkimsource/tools/examples. 1839193267Sjkim 1840193267SjkimAdded a global pointer for FACS table to simplify internal FACS access. Use 1841218590Sjkimthe global pointer instead of using AcpiGetTableByIndex for each FACS 1842218590Sjkimaccess. 1843193267SjkimThis simplifies the code for the Global Lock and the Firmware Waking 1844193267SjkimVector(s). 1845193267Sjkim 1846193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1847193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1848218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1849218590Sjkima 1850193267Sjkimmuch larger code and data size. 1851193267Sjkim 1852193267Sjkim Previous Release: 1853193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1854193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1855193267Sjkim Current Release: 1856193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1857193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1858193267Sjkim 1859193267Sjkim2) iASL Compiler/Disassembler and Tools: 1860193267Sjkim 1861193267SjkimiASL: Improved disassembly of external method calls. Added the -e option to 1862218590Sjkimallow the inclusion of additional ACPI tables to help with the disassembly 1863218590Sjkimof 1864193267Sjkimmethod invocations and the generation of external declarations during the 1865193267Sjkimdisassembly. Certain external method invocations cannot be disassembled 1866193267Sjkimproperly without the actual declaration of the method. Use the -e option to 1867193267Sjkiminclude the table where the external method(s) are actually declared. Most 1868193267Sjkimuseful for disassembling SSDTs that make method calls back to the master 1869193267SjkimDSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d 1870193267Sjkim-e dsdt.aml ssdt1.aml 1871193267Sjkim 1872193267SjkimiASL: Fix to allow references to aliases within ASL namepaths. Fixes a 1873193267Sjkimproblem where the use of an alias within a namepath would result in a not 1874193267Sjkimfound error or cause the compiler to fault. Also now allows forward 1875193267Sjkimreferences from the Alias operator itself. ACPICA BZ 738. 1876193267Sjkim 1877193267Sjkim---------------------------------------- 1878193267Sjkim26 September 2008. Summary of changes for version 20080926: 1879193267Sjkim 1880193267Sjkim1) ACPI CA Core Subsystem: 1881193267Sjkim 1882193267SjkimDesigned and implemented a mechanism to validate predefined ACPI methods and 1883218590Sjkimobjects. This code validates the predefined ACPI objects (objects whose 1884218590Sjkimnames 1885193267Sjkimstart with underscore) that appear in the namespace, at the time they are 1886193267Sjkimevaluated. The argument count and the type of the returned object are 1887193267Sjkimvalidated against the ACPI specification. The purpose of this validation is 1888193267Sjkimto detect problems with the BIOS-implemented predefined ACPI objects before 1889218590Sjkimthe results are returned to the ACPI-related drivers. Future enhancements 1890218590Sjkimmay 1891193267Sjkiminclude actual repair of incorrect return objects where possible. Two new 1892193267Sjkimfiles are nspredef.c and acpredef.h. 1893193267Sjkim 1894193267SjkimFixed a fault in the AML parser if a memory allocation fails during the Op 1895193267Sjkimcompletion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492. 1896193267Sjkim 1897193267SjkimFixed an issue with implicit return compatibility. This change improves the 1898193267Sjkimimplicit return mechanism to be more compatible with the MS interpreter. Lin 1899193267SjkimMing, ACPICA BZ 349. 1900193267Sjkim 1901193267SjkimImplemented support for zero-length buffer-to-string conversions. Allow zero 1902193267Sjkimlength strings during interpreter buffer-to-string conversions. For example, 1903193267Sjkimduring the ToDecimalString and ToHexString operators, as well as implicit 1904193267Sjkimconversions. Fiodor Suietov, ACPICA BZ 585. 1905193267Sjkim 1906193267SjkimFixed two possible memory leaks in the error exit paths of 1907193267SjkimAcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are 1908193267Sjkimsimilar in that they use a stack of state objects in order to eliminate 1909193267Sjkimrecursion. The stack must be fully unwound and deallocated if an error 1910193267Sjkimoccurs. Lin Ming. ACPICA BZ 383. 1911193267Sjkim 1912218590SjkimRemoved the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the 1913218590Sjkimglobal 1914193267SjkimACPI register table. This bit does not exist and is unused. Lin Ming, Bob 1915193267SjkimMoore ACPICA BZ 442. 1916193267Sjkim 1917193267SjkimRemoved the obsolete version number in module headers. Removed the 1918193267Sjkim"$Revision" number that appeared in each module header. This version number 1919193267Sjkimwas useful under SourceSafe and CVS, but has no meaning under git. It is not 1920193267Sjkimonly incorrect, it could also be misleading. 1921193267Sjkim 1922193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1923193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1924218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1925218590Sjkima 1926193267Sjkimmuch larger code and data size. 1927193267Sjkim 1928193267Sjkim Previous Release: 1929193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1930193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1931193267Sjkim Current Release: 1932193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1933193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1934193267Sjkim 1935193267Sjkim---------------------------------------- 1936193267Sjkim29 August 2008. Summary of changes for version 20080829: 1937193267Sjkim 1938193267Sjkim1) ACPI CA Core Subsystem: 1939193267Sjkim 1940193267SjkimCompleted a major cleanup of the internal ACPI_OPERAND_OBJECT of type 1941193267SjkimReference. Changes include the elimination of cheating on the Object field 1942193267Sjkimfor the DdbHandle subtype, addition of a reference class field to 1943218590Sjkimdifferentiate the various reference types (instead of an AML opcode), and 1944218590Sjkimthe 1945193267Sjkimcleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723 1946193267Sjkim 1947193267SjkimReduce an error to a warning for an incorrect method argument count. 1948193267SjkimPreviously aborted with an error if too few arguments were passed to a 1949218590Sjkimcontrol method via the external ACPICA interface. Now issue a warning 1950218590Sjkiminstead 1951193267Sjkimand continue. Handles the case where the method inadvertently declares too 1952193267Sjkimmany arguments, but does not actually use the extra ones. Applies mainly to 1953193267Sjkimthe predefined methods. Lin Ming. Linux BZ 11032. 1954193267Sjkim 1955218590SjkimDisallow the evaluation of named object types with no intrinsic value. 1956218590SjkimReturn 1957218590SjkimAE_TYPE for objects that have no value and therefore evaluation is 1958218590Sjkimundefined: 1959193267SjkimDevice, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of 1960193267Sjkimthese types were allowed, but an exception would be generated at some point 1961193267Sjkimduring the evaluation. Now, the error is generated up front. 1962193267Sjkim 1963193267SjkimFixed a possible memory leak in the AcpiNsGetExternalPathname function 1964193267Sjkim(nsnames.c). Fixes a leak in the error exit path. 1965193267Sjkim 1966218590SjkimRemoved the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These 1967218590Sjkimdebug 1968218590Sjkimlevels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and 1969218590SjkimACPI_EXCEPTION 1970193267Sjkiminterfaces. Also added ACPI_DB_EVENTS to correspond with the existing 1971193267SjkimACPI_LV_EVENTS. 1972193267Sjkim 1973193267SjkimRemoved obsolete and/or unused exception codes from the acexcep.h header. 1974193267SjkimThere is the possibility that certain device drivers may be affected if they 1975193267Sjkimuse any of these exceptions. 1976193267Sjkim 1977193267SjkimThe ACPICA documentation has been added to the public git source tree, under 1978193267Sjkimacpica/documents. Included are the ACPICA programmer reference, the iASL 1979193267Sjkimcompiler reference, and the changes.txt release logfile. 1980193267Sjkim 1981193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1982193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1983218590Sjkimdebug version of the code includes the debug output trace mechanism and has 1984218590Sjkima 1985193267Sjkimmuch larger code and data size. 1986193267Sjkim 1987193267Sjkim Previous Release: 1988193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1989193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1990193267Sjkim Current Release: 1991193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1992193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1993193267Sjkim 1994193267Sjkim2) iASL Compiler/Disassembler and Tools: 1995193267Sjkim 1996193267SjkimAllow multiple argument counts for the predefined _SCP method. ACPI 3.0 1997193267Sjkimdefines _SCP with 3 arguments. Previous versions defined it with only 1 1998193267Sjkimargument. iASL now allows both definitions. 1999193267Sjkim 2000193267SjkimiASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero- 2001193267Sjkimlength subtables when disassembling ACPI tables. Also fixed a couple of 2002193267Sjkimerrors where a full 16-bit table type field was not extracted from the input 2003193267Sjkimproperly. 2004193267Sjkim 2005193267Sjkimacpisrc: Improve comment counting mechanism for generating source code 2006193267Sjkimstatistics. Count first and last lines of multi-line comments as whitespace, 2007193267Sjkimnot comment lines. Handle Linux legal header in addition to standard acpica 2008193267Sjkimheader. 2009193267Sjkim 2010193267Sjkim---------------------------------------- 2011193267Sjkim 2012193267Sjkim29 July 2008. Summary of changes for version 20080729: 2013193267Sjkim 2014193267Sjkim1) ACPI CA Core Subsystem: 2015193267Sjkim 2016193267SjkimFix a possible deadlock in the GPE dispatch. Remove call to 2017218590SjkimAcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will 2018218590Sjkimattempt 2019193267Sjkimto acquire the GPE lock but can deadlock since the GPE lock is already held 2020193267Sjkimat dispatch time. This code was introduced in version 20060831 as a response 2021193267Sjkimto Linux BZ 6881 and has since been removed from Linux. 2022193267Sjkim 2023218590SjkimAdd a function to dereference returned reference objects. Examines the 2024218590Sjkimreturn 2025193267Sjkimobject from a call to AcpiEvaluateObject. Any Index or RefOf references are 2026193267Sjkimautomatically dereferenced in an attempt to return something useful (these 2027193267Sjkimreference types cannot be converted into an external ACPI_OBJECT.) Provides 2028193267SjkimMS compatibility. Lin Ming, Bob Moore. Linux BZ 11105 2029193267Sjkim 2030193267Sjkimx2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new 2031193267Sjkimsubtables for the MADT and one new subtable for the SRAT. Includes 2032193267Sjkimdisassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC 2033193267SjkimSpecification, June 2008. 2034193267Sjkim 2035193267SjkimAdditional error checking for pathname utilities. Add error check after all 2036193267Sjkimcalls to AcpiNsGetPathnameLength. Add status return from 2037193267SjkimAcpiNsBuildExternalPath and check after all calls. Add parameter validation 2038193267Sjkimto AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar. 2039193267Sjkim 2040193267SjkimReturn status from the global init function AcpiUtGlobalInitialize. This is 2041193267Sjkimused by both the kernel subsystem and the utilities such as iASL compiler. 2042193267SjkimThe function could possibly fail when the caches are initialized. Yang Yi. 2043193267Sjkim 2044193267SjkimAdd a function to decode reference object types to strings. Created for 2045193267Sjkimimproved error messages. 2046193267Sjkim 2047218590SjkimImprove object conversion error messages. Better error messages during 2048218590Sjkimobject 2049218590Sjkimconversion from internal to the external ACPI_OBJECT. Used for external 2050218590Sjkimcalls 2051193267Sjkimto AcpiEvaluateObject. 2052193267Sjkim 2053193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2054193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2055218590Sjkimdebug version of the code includes the debug output trace mechanism and has 2056218590Sjkima 2057193267Sjkimmuch larger code and data size. 2058193267Sjkim 2059193267Sjkim Previous Release: 2060193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 2061193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 2062193267Sjkim Current Release: 2063193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 2064193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 2065193267Sjkim 2066193267Sjkim2) iASL Compiler/Disassembler and Tools: 2067193267Sjkim 2068193267SjkimDebugger: fix a possible hang when evaluating non-methods. Fixes a problem 2069193267Sjkimintroduced in version 20080701. If the object being evaluated (via execute 2070193267Sjkimcommand) is not a method, the debugger can hang while trying to obtain non- 2071193267Sjkimexistent parameters. 2072193267Sjkim 2073193267SjkimiASL: relax error for using reserved "_T_x" identifiers. These names can 2074193267Sjkimappear in a disassembled ASL file if they were emitted by the original 2075193267Sjkimcompiler. Instead of issuing an error or warning and forcing the user to 2076193267Sjkimmanually change these names, issue a remark instead. 2077193267Sjkim 2078218590SjkimiASL: error if named object created in while loop. Emit an error if any 2079218590Sjkimnamed 2080193267Sjkimobject is created within a While loop. If allowed, this code will generate a 2081218590Sjkimrun-time error on the second iteration of the loop when an attempt is made 2082218590Sjkimto 2083193267Sjkimcreate the same named object twice. ACPICA bugzilla 730. 2084193267Sjkim 2085193267SjkimiASL: Support absolute pathnames for include files. Add support for absolute 2086193267Sjkimpathnames within the Include operator. previously, only relative pathnames 2087193267Sjkimwere supported. 2088193267Sjkim 2089218590SjkimiASL: Enforce minimum 1 interrupt in interrupt macro and Resource 2090218590SjkimDescriptor. 2091193267SjkimThe ACPI spec requires one interrupt minimum. BZ 423 2092193267Sjkim 2093193267SjkimiASL: Handle a missing ResourceSource arg, with a present SourceIndex. 2094193267SjkimHandles the case for the Interrupt Resource Descriptor where 2095193267Sjkimthe ResourceSource argument is omitted but ResourceSourceIndex 2096193267Sjkimis present. Now leave room for the Index. BZ 426 2097193267Sjkim 2098193267SjkimiASL: Prevent error message if CondRefOf target does not exist. Fixes cases 2099193267Sjkimwhere an error message is emitted if the target does not exist. BZ 516 2100193267Sjkim 2101193267SjkimiASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option 2102218590Sjkim(get ACPI tables on Windows). This was apparently broken in version 2103218590Sjkim20070919. 2104193267Sjkim 2105218590SjkimAcpiXtract: Handle EOF while extracting data. Correctly handle the case 2106218590Sjkimwhere 2107193267Sjkimthe EOF happens immediately after the last table in the input file. Print 2108193267Sjkimcompletion message. Previously, no message was displayed in this case. 2109193267Sjkim 2110193267Sjkim---------------------------------------- 2111193267Sjkim01 July 2008. Summary of changes for version 20080701: 2112193267Sjkim 2113193267Sjkim0) Git source tree / acpica.org 2114193267Sjkim 2115193267SjkimFixed a problem where a git-clone from http would not transfer the entire 2116193267Sjkimsource tree. 2117193267Sjkim 2118193267Sjkim1) ACPI CA Core Subsystem: 2119193267Sjkim 2120193267SjkimImplemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one 2121193267Sjkimenable bit. Now performs a read-change-write of the enable register instead 2122193267Sjkimof simply writing out the cached enable mask. This will prevent inadvertent 2123218590Sjkimenabling of GPEs if a rogue GPE is received during initialization (before 2124218590SjkimGPE 2125193267Sjkimhandlers are installed.) 2126193267Sjkim 2127193267SjkimImplemented a copy for dynamically loaded tables. Previously, dynamically 2128193267Sjkimloaded tables were simply mapped - but on some machines this memory is 2129193267Sjkimcorrupted after suspend. Now copy the table to a local buffer. For the 2130193267SjkimOpRegion case, added checksum verify. Use the table length from the table 2131193267Sjkimheader, not the region length. For the Buffer case, use the table length 2132193267Sjkimalso. Dennis Noordsij, Bob Moore. BZ 10734 2133193267Sjkim 2134218590SjkimFixed a problem where the same ACPI table could not be dynamically loaded 2135218590Sjkimand 2136193267Sjkimunloaded more than once. Without this change, a table cannot be loaded again 2137193267Sjkimonce it has been loaded/unloaded one time. The current mechanism does not 2138218590Sjkimunregister a table upon an unload. During a load, if the same table is 2139218590Sjkimfound, 2140193267Sjkimthis no longer returns an exception. BZ 722 2141193267Sjkim 2142193267SjkimFixed a problem where the wrong descriptor length was calculated for the 2143193267SjkimEndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag 2144193267Sjkimare calculated as 12 bytes long, but the actual length in the internal 2145193267Sjkimdescriptor is 16 because of the round-up to 8 on the 64-bit build. Reported 2146193267Sjkimby Linn Crosetto. BZ 728 2147193267Sjkim 2148193267SjkimFixed a possible memory leak in the Unload operator. The DdbHandle returned 2149218590Sjkimby Load() did not have its reference count decremented during unload, 2150218590Sjkimleading 2151193267Sjkimto a memory leak. Lin Ming. BZ 727 2152193267Sjkim 2153193267SjkimFixed a possible memory leak when deleting thermal/processor objects. Any 2154193267Sjkimassociated notify handlers (and objects) were not being deleted. Fiodor 2155193267SjkimSuietov. BZ 506 2156193267Sjkim 2157193267SjkimFixed the ordering of the ASCII names in the global mutex table to match the 2158218590Sjkimactual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug 2159218590Sjkimonly. 2160193267SjkimVegard Nossum. BZ 726 2161193267Sjkim 2162193267SjkimEnhanced the AcpiGetObjectInfo interface to return the number of required 2163193267Sjkimarguments if the object is a control method. Added this call to the debugger 2164193267Sjkimso the proper number of default arguments are passed to a method. This 2165193267Sjkimprevents a warning when executing methods from AcpiExec. 2166193267Sjkim 2167193267SjkimAdded a check for an invalid handle in AcpiGetObjectInfo. Return 2168193267SjkimAE_BAD_PARAMETER if input handle is invalid. BZ 474 2169193267Sjkim 2170193267SjkimFixed an extraneous warning from exconfig.c on the 64-bit build. 2171193267Sjkim 2172193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2173193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2174218590Sjkimdebug version of the code includes the debug output trace mechanism and has 2175218590Sjkima 2176193267Sjkimmuch larger code and data size. 2177193267Sjkim 2178193267Sjkim Previous Release: 2179193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 2180193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 2181193267Sjkim Current Release: 2182193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 2183193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 2184193267Sjkim 2185193267Sjkim2) iASL Compiler/Disassembler and Tools: 2186193267Sjkim 2187193267SjkimiASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both 2188193267Sjkimresource descriptor names. 2189193267Sjkim 2190218590SjkimiASL: Detect invalid ASCII characters in input (windows version). Removed 2191218590Sjkimthe 2192193267Sjkim"-CF" flag from the flex compile, enables correct detection of non-ASCII 2193193267Sjkimcharacters in the input. BZ 441 2194193267Sjkim 2195193267SjkimiASL: Eliminate warning when result of LoadTable is not used. Eliminate the 2196193267Sjkim"result of operation not used" warning when the DDB handle returned from 2197193267SjkimLoadTable is not used. The warning is not needed. BZ 590 2198193267Sjkim 2199218590SjkimAcpiExec: Add support for dynamic table load/unload. Now calls _CFG method 2200218590Sjkimto 2201218590Sjkimpass address of table to the AML. Added option to disable OpRegion 2202218590Sjkimsimulation 2203218590Sjkimto allow creation of an OpRegion with a real address that was passed to 2204218590Sjkim_CFG. 2205193267SjkimAll of this allows testing of the Load and Unload operators from AcpiExec. 2206193267Sjkim 2207193267SjkimDebugger: update tables command for unloaded tables. Handle unloaded tables 2208193267Sjkimand use the standard table header output routine. 2209193267Sjkim 2210193267Sjkim---------------------------------------- 2211193267Sjkim09 June 2008. Summary of changes for version 20080609: 2212193267Sjkim 2213193267Sjkim1) ACPI CA Core Subsystem: 2214193267Sjkim 2215193267SjkimImplemented a workaround for reversed _PRT entries. A significant number of 2216193267SjkimBIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This 2217193267Sjkimchange dynamically detects and repairs this problem. Provides compatibility 2218193267Sjkimwith MS ACPI. BZ 6859 2219193267Sjkim 2220193267SjkimSimplified the internal ACPI hardware interfaces to eliminate the locking 2221193267Sjkimflag parameter from Register Read/Write. Added a new external interface, 2222193267SjkimAcpiGetRegisterUnlocked. 2223193267Sjkim 2224218590SjkimFixed a problem where the invocation of a GPE control method could hang. 2225218590SjkimThis 2226193267Sjkimwas a regression introduced in 20080514. The new method argument count 2227193267Sjkimvalidation mechanism can enter an infinite loop when a GPE method is 2228218590Sjkimdispatched. Problem fixed by removing the obsolete code that passed GPE 2229218590Sjkimblock 2230193267Sjkiminformation to the notify handler via the control method parameter pointer. 2231193267Sjkim 2232193267SjkimFixed a problem where the _SST execution status was incorrectly returned to 2233193267Sjkimthe caller of AcpiEnterSleepStatePrep. This was a regression introduced in 2234193267Sjkim20080514. _SST is optional and a NOT_FOUND exception should never be 2235193267Sjkimreturned. BZ 716 2236193267Sjkim 2237193267SjkimFixed a problem where a deleted object could be accessed from within the AML 2238218590Sjkimparser. This was a regression introduced in version 20080123 as a fix for 2239218590Sjkimthe 2240193267SjkimUnload operator. Lin Ming. BZ 10669 2241193267Sjkim 2242193267SjkimCleaned up the debug operand dump mechanism. Eliminated unnecessary operands 2243193267Sjkimand eliminated the use of a negative index in a loop. Operands are now 2244193267Sjkimdisplayed in the correct order, not backwards. This also fixes a regression 2245193267Sjkimintroduced in 20080514 on 64-bit systems where the elimination of 2246193267SjkimACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715 2247193267Sjkim 2248193267SjkimFixed a possible memory leak in EvPciConfigRegionSetup where the error exit 2249193267Sjkimpath did not delete a locally allocated structure. 2250193267Sjkim 2251193267SjkimUpdated definitions for the DMAR and SRAT tables to synchronize with the 2252193267Sjkimcurrent specifications. Includes disassembler support. 2253193267Sjkim 2254193267SjkimFixed a problem in the mutex debug code (in utmutex.c) where an incorrect 2255193267Sjkimloop termination value was used. Loop terminated on iteration early, missing 2256193267Sjkimone mutex. Linn Crosetto 2257193267Sjkim 2258193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2259193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2260218590Sjkimdebug version of the code includes the debug output trace mechanism and has 2261218590Sjkima 2262193267Sjkimmuch larger code and data size. 2263193267Sjkim 2264193267Sjkim Previous Release: 2265193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 2266193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 2267193267Sjkim Current Release: 2268193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 2269193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 2270193267Sjkim 2271193267Sjkim2) iASL Compiler/Disassembler and Tools: 2272193267Sjkim 2273193267SjkimDisassembler: Implemented support for EisaId() within _CID objects. Now 2274193267Sjkimdisassemble integer _CID objects back to EisaId invocations, including 2275193267Sjkimmultiple integers within _CID packages. Includes single-step support for 2276193267Sjkimdebugger also. 2277193267Sjkim 2278193267SjkimDisassembler: Added support for DMAR and SRAT table definition changes. 2279193267Sjkim 2280193267Sjkim---------------------------------------- 2281193267Sjkim14 May 2008. Summary of changes for version 20080514: 2282193267Sjkim 2283193267Sjkim1) ACPI CA Core Subsystem: 2284193267Sjkim 2285193267SjkimFixed a problem where GPEs were enabled too early during the ACPICA 2286193267Sjkiminitialization. This could lead to "handler not installed" errors on some 2287193267Sjkimmachines. Moved GPE enable until after _REG/_STA/_INI methods are run. This 2288193267Sjkimensures that all operation regions and devices throughout the namespace have 2289193267Sjkimbeen initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916. 2290193267Sjkim 2291193267SjkimImplemented a change to the enter sleep code. Moved execution of the _GTS 2292193267Sjkimmethod to just before setting sleep enable bit. The execution was moved from 2293193267SjkimAcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed 2294193267Sjkimimmediately before the SLP_EN bit is set, as per the ACPI specification. 2295193267SjkimLuming Yu, BZ 1653. 2296193267Sjkim 2297193267SjkimImplemented a fix to disable unknown GPEs (2nd version). Now always disable 2298193267Sjkimthe GPE, even if ACPICA thinks that that it is already disabled. It is 2299193267Sjkimpossible that the AML or some other code has enabled the GPE unbeknownst to 2300193267Sjkimthe ACPICA code. 2301193267Sjkim 2302218590SjkimFixed a problem with the Field operator where zero-length fields would 2303218590Sjkimreturn 2304218590Sjkiman AE_AML_NO_OPERAND exception during table load. Fix enables zero-length 2305218590SjkimASL 2306193267Sjkimfield declarations in Field(), BankField(), and IndexField(). BZ 10606. 2307193267Sjkim 2308193267SjkimImplemented a fix for the Load operator, now load the table at the namespace 2309193267Sjkimroot. This reverts a change introduced in version 20071019. The table is now 2310193267Sjkimloaded at the namespace root even though this goes against the ACPI 2311193267Sjkimspecification. This provides compatibility with other ACPI implementations. 2312218590SjkimThe ACPI specification will be updated to reflect this in ACPI 4.0. Lin 2313218590SjkimMing. 2314193267Sjkim 2315218590SjkimFixed a problem where ACPICA would not Load() tables with unusual 2316218590Sjkimsignatures. 2317193267SjkimNow ignore ACPI table signature for Load() operator. Only "SSDT" is 2318193267Sjkimacceptable to the ACPI spec, but tables are seen with OEMx and null sigs. 2319218590SjkimTherefore, signature validation is worthless. Apparently MS ACPI accepts 2320218590Sjkimsuch 2321193267Sjkimsignatures, ACPICA must be compatible. BZ 10454. 2322193267Sjkim 2323193267SjkimFixed a possible negative array index in AcpiUtValidateException. Added NULL 2324193267Sjkimfields to the exception string arrays to eliminate a -1 subtraction on the 2325193267SjkimSubStatus field. 2326193267Sjkim 2327193267SjkimUpdated the debug tracking macros to reduce overall code and data size. 2328193267SjkimChanged ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings 2329193267Sjkiminstead of pointers to static strings. Jan Beulich and Bob Moore. 2330193267Sjkim 2331193267SjkimImplemented argument count checking in control method invocation via 2332193267SjkimAcpiEvaluateObject. Now emit an error if too few arguments, warning if too 2333193267Sjkimmany. This applies only to extern programmatic control method execution, not 2334193267Sjkimmethod-to-method calls within the AML. Lin Ming. 2335193267Sjkim 2336193267SjkimEliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no 2337218590Sjkimlonger needed, especially with the removal of 16-bit support. It was 2338218590Sjkimreplaced 2339218590Sjkimmostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit 2340218590Sjkimon 2341193267Sjkim32/64-bit platforms is required. 2342193267Sjkim 2343193267SjkimAdded the C const qualifier for appropriate string constants -- mostly 2344193267SjkimMODULE_NAME and printf format strings. Jan Beulich. 2345193267Sjkim 2346193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2347193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2348218590Sjkimdebug version of the code includes the debug output trace mechanism and has 2349218590Sjkima 2350193267Sjkimmuch larger code and data size. 2351193267Sjkim 2352193267Sjkim Previous Release: 2353193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 2354193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 2355193267Sjkim Current Release: 2356193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 2357193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 2358193267Sjkim 2359193267Sjkim2) iASL Compiler/Disassembler and Tools: 2360193267Sjkim 2361193267SjkimImplemented ACPI table revision ID validation in the disassembler. Zero is 2362193267Sjkimalways invalid. For DSDTs, the ID controls the interpreter integer width. 1 2363193267Sjkimmeans 32-bit and this is unusual. 2 or greater is 64-bit. 2364193267Sjkim 2365193267Sjkim---------------------------------------- 2366193267Sjkim21 March 2008. Summary of changes for version 20080321: 2367193267Sjkim 2368193267Sjkim1) ACPI CA Core Subsystem: 2369193267Sjkim 2370193267SjkimImplemented an additional change to the GPE support in order to suppress 2371193267Sjkimspurious or stray GPEs. The AcpiEvDisableGpe function will now permanently 2372193267Sjkimdisable incoming GPEs that are neither enabled nor disabled -- meaning that 2373218590Sjkimthe GPE is unknown to the system. This should prevent future interrupt 2374218590Sjkimfloods 2375193267Sjkimfrom that GPE. BZ 6217 (Zhang Rui) 2376193267Sjkim 2377193267SjkimFixed a problem where NULL package elements were not returned to the 2378193267SjkimAcpiEvaluateObject interface correctly. The element was simply ignored 2379193267Sjkiminstead of returning a NULL ACPI_OBJECT package element, potentially causing 2380193267Sjkima buffer overflow and/or confusing the caller who expected a fixed number of 2381193267Sjkimelements. BZ 10132 (Lin Ming, Bob Moore) 2382193267Sjkim 2383218590SjkimFixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, 2384218590SjkimDword, 2385193267SjkimQword), Field, BankField, and IndexField operators when invoked from inside 2386193267Sjkiman executing control method. In this case, these operators created namespace 2387193267Sjkimnodes that were incorrectly left marked as permanent nodes instead of 2388193267Sjkimtemporary nodes. This could cause a problem if there is race condition 2389193267Sjkimbetween an exiting control method and a running namespace walk. (Reported by 2390193267SjkimLinn Crosetto) 2391193267Sjkim 2392193267SjkimFixed a problem where the CreateField and CreateXXXField operators would 2393193267Sjkimincorrectly allow duplicate names (the name of the field) with no exception 2394193267Sjkimgenerated. 2395193267Sjkim 2396218590SjkimImplemented several changes for Notify handling. Added support for new 2397218590SjkimNotify 2398193267Sjkimvalues (ACPI 2.0+) and improved the Notify debug output. Notify on 2399193267SjkimPowerResource objects is no longer allowed, as per the ACPI specification. 2400193267Sjkim(Bob Moore, Zhang Rui) 2401193267Sjkim 2402193267SjkimAll Reference Objects returned via the AcpiEvaluateObject interface are now 2403218590Sjkimmarked as type "REFERENCE" instead of "ANY". The type ANY is now reserved 2404218590Sjkimfor 2405193267SjkimNULL objects - either NULL package elements or unresolved named references. 2406193267Sjkim 2407193267SjkimFixed a problem where an extraneous debug message was produced for package 2408193267Sjkimobjects (when debugging enabled). The message "Package List length larger 2409193267Sjkimthan NumElements count" is now produced in the correct case, and is now an 2410193267Sjkimerror message rather than a debug message. Added a debug message for the 2411218590Sjkimopposite case, where NumElements is larger than the Package List (the 2412218590Sjkimpackage 2413193267Sjkimwill be padded out with NULL elements as per the ACPI spec.) 2414193267Sjkim 2415193267SjkimImplemented several improvements for the output of the ASL "Debug" object to 2416193267Sjkimclarify and keep all data for a given object on one output line. 2417193267Sjkim 2418193267SjkimFixed two size calculation issues with the variable-length Start Dependent 2419193267Sjkimresource descriptor. 2420193267Sjkim 2421193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2422193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2423193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2424193267Sjkima much larger code and data size. 2425193267Sjkim 2426193267Sjkim Previous Release: 2427193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 2428193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 2429193267Sjkim Current Release: 2430193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 2431193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 2432193267Sjkim 2433193267Sjkim2) iASL Compiler/Disassembler and Tools: 2434193267Sjkim 2435193267SjkimFixed a problem with the use of the Switch operator where execution of the 2436193267Sjkimcontaining method by multiple concurrent threads could cause an 2437193267SjkimAE_ALREADY_EXISTS exception. This is caused by the fact that there is no 2438193267Sjkimactual Switch opcode, it must be simulated with local named temporary 2439193267Sjkimvariables and if/else pairs. The solution chosen was to mark any method that 2440193267Sjkimuses Switch as Serialized, thus preventing multiple thread entries. BZ 469. 2441193267Sjkim 2442193267Sjkim---------------------------------------- 2443193267Sjkim13 February 2008. Summary of changes for version 20080213: 2444193267Sjkim 2445193267Sjkim1) ACPI CA Core Subsystem: 2446193267Sjkim 2447193267SjkimImplemented another MS compatibility design change for GPE/Notify handling. 2448193267SjkimGPEs are now cleared/enabled asynchronously to allow all pending notifies to 2449193267Sjkimcomplete first. It is expected that the OSL will queue the enable request 2450218590Sjkimbehind all pending notify requests (may require changes to the local host 2451218590SjkimOSL 2452193267Sjkimin AcpiOsExecute). Alexey Starikovskiy. 2453193267Sjkim 2454193267SjkimFixed a problem where buffer and package objects passed as arguments to a 2455193267Sjkimcontrol method via the external AcpiEvaluateObject interface could cause an 2456193267SjkimAE_AML_INTERNAL exception depending on the order and type of operators 2457193267Sjkimexecuted by the target control method. 2458193267Sjkim 2459193267SjkimFixed a problem where resource descriptor size optimization could cause a 2460193267Sjkimproblem when a _CRS resource template is passed to a _SRS method. The _SRS 2461193267Sjkimresource template must use the same descriptors (with the same size) as 2462193267Sjkimreturned from _CRS. This change affects the following resource descriptors: 2463193267SjkimIRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487) 2464193267Sjkim 2465193267SjkimFixed a problem where a CopyObject to RegionField, BankField, and IndexField 2466218590Sjkimobjects did not perform an implicit conversion as it should. These types 2467218590Sjkimmust 2468218590Sjkimretain their initial type permanently as per the ACPI specification. 2469218590SjkimHowever, 2470193267Sjkima CopyObject to all other object types should not perform an implicit 2471193267Sjkimconversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388 2472193267Sjkim 2473193267SjkimFixed a problem with the AcpiGetDevices interface where the mechanism to 2474193267Sjkimmatch device CIDs did not examine the entire list of available CIDs, but 2475193267Sjkiminstead aborted on the first non-matching CID. Andrew Patterson. 2476193267Sjkim 2477218590SjkimFixed a regression introduced in version 20071114. The ACPI_HIDWORD macro 2478218590Sjkimwas 2479193267Sjkiminadvertently changed to return a 16-bit value instead of a 32-bit value, 2480193267Sjkimtruncating the upper dword of a 64-bit value. This macro is only used to 2481193267Sjkimdisplay debug output, so no incorrect calculations were made. Also, 2482193267Sjkimreimplemented the macro so that a 64-bit shift is not performed by 2483193267Sjkiminefficient compilers. 2484193267Sjkim 2485193267SjkimAdded missing va_end statements that should correspond with each va_start 2486193267Sjkimstatement. 2487193267Sjkim 2488193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2489193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2490193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2491193267Sjkima much larger code and data size. 2492193267Sjkim 2493193267Sjkim Previous Release: 2494193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2495193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2496193267Sjkim Current Release: 2497193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 2498193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 2499193267Sjkim 2500193267Sjkim2) iASL Compiler/Disassembler and Tools: 2501193267Sjkim 2502193267SjkimImplemented full disassembler support for the following new ACPI tables: 2503193267SjkimBERT, EINJ, and ERST. Implemented partial disassembler support for the 2504193267Sjkimcomplicated HEST table. These tables support the Windows Hardware Error 2505193267SjkimArchitecture (WHEA). 2506193267Sjkim 2507193267Sjkim---------------------------------------- 2508193267Sjkim23 January 2008. Summary of changes for version 20080123: 2509193267Sjkim 2510193267Sjkim1) ACPI CA Core Subsystem: 2511193267Sjkim 2512193267SjkimAdded the 2008 copyright to all module headers and signons. This affects 2513193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2514193267Sjkimthe tools/utilities. 2515193267Sjkim 2516193267SjkimFixed a problem with the SizeOf operator when used with Package and Buffer 2517193267Sjkimobjects. These objects have deferred execution for some arguments, and the 2518218590Sjkimexecution is now completed before the SizeOf is executed. This problem 2519218590Sjkimcaused 2520193267Sjkimunexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ 2521193267Sjkim9558 2522193267Sjkim 2523218590SjkimImplemented an enhancement to the interpreter "slack mode". In the absence 2524218590Sjkimof 2525193267Sjkiman explicit return or an implicitly returned object from the last executed 2526218590Sjkimopcode, a control method will now implicitly return an integer of value 0 2527218590Sjkimfor 2528193267SjkimMicrosoft compatibility. (Lin Ming) BZ 392 2529193267Sjkim 2530218590SjkimFixed a problem with the Load operator where an exception was not returned 2531218590Sjkimin 2532193267Sjkimthe case where the table is already loaded. (Lin Ming) BZ 463 2533193267Sjkim 2534218590SjkimImplemented support for the use of DDBHandles as an Indexed Reference, as 2535218590Sjkimper 2536193267Sjkimthe ACPI spec. (Lin Ming) BZ 486 2537193267Sjkim 2538193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2539193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2540193267Sjkim 2541193267SjkimFixed a problem with the LoadTable operator where the OemId and OemTableId 2542193267Sjkiminput strings could cause unexpected failures if they were shorter than the 2543193267Sjkimmaximum lengths allowed. (Lin Ming, Bob Moore) BZ 576 2544193267Sjkim 2545193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2546193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2547193267Sjkim 2548218590SjkimImplemented header file support for new ACPI tables - BERT, ERST, EINJ, 2549218590SjkimHEST, 2550193267SjkimIBFT, UEFI, WDAT. Disassembler support is forthcoming. 2551193267Sjkim 2552193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2553193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2554193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2555193267Sjkima much larger code and data size. 2556193267Sjkim 2557193267Sjkim Previous Release: 2558193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2559193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2560193267Sjkim Current Release: 2561193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2562193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2563193267Sjkim 2564193267Sjkim2) iASL Compiler/Disassembler and Tools: 2565193267Sjkim 2566193267SjkimImplemented support in the disassembler for checksum validation on incoming 2567218590Sjkimbinary DSDTs and SSDTs. If incorrect, a message is displayed within the 2568218590Sjkimtable 2569193267Sjkimheader dump at the start of the disassembly. 2570193267Sjkim 2571193267SjkimImplemented additional debugging information in the namespace listing file 2572193267Sjkimcreated during compilation. In addition to the namespace hierarchy, the full 2573193267Sjkimpathname to each namespace object is displayed. 2574193267Sjkim 2575193267SjkimFixed a problem with the disassembler where invalid ACPI tables could cause 2576193267Sjkimfaults or infinite loops. 2577193267Sjkim 2578193267SjkimFixed an unexpected parse error when using the optional "parameter types" 2579193267Sjkimlist in a control method declaration. (Lin Ming) BZ 397 2580193267Sjkim 2581193267SjkimFixed a problem where two External declarations with the same name did not 2582193267Sjkimcause an error (Lin Ming) BZ 509 2583193267Sjkim 2584193267SjkimImplemented support for full TermArgs (adding Argx, Localx and method 2585193267Sjkiminvocation) for the ParameterData parameter to the LoadTable operator. (Lin 2586193267SjkimMing) BZ 583,587 2587193267Sjkim 2588193267Sjkim---------------------------------------- 2589193267Sjkim19 December 2007. Summary of changes for version 20071219: 2590193267Sjkim 2591193267Sjkim1) ACPI CA Core Subsystem: 2592193267Sjkim 2593193267SjkimImplemented full support for deferred execution for the TermArg string 2594193267Sjkimarguments for DataTableRegion. This enables forward references and full 2595218590Sjkimoperand resolution for the three string arguments. Similar to 2596218590SjkimOperationRegion 2597193267Sjkimdeferred argument execution.) Lin Ming. BZ 430 2598193267Sjkim 2599193267SjkimImplemented full argument resolution support for the BankValue argument to 2600193267SjkimBankField. Previously, only constants were supported, now any TermArg may be 2601193267Sjkimused. Lin Ming BZ 387, 393 2602193267Sjkim 2603193267SjkimFixed a problem with AcpiGetDevices where the search of a branch of the 2604193267Sjkimdevice tree could be terminated prematurely. In accordance with the ACPI 2605193267Sjkimspecification, the search down the current branch is terminated if a device 2606193267Sjkimis both not present and not functional (instead of just not present.) Yakui 2607193267SjkimZhao. 2608193267Sjkim 2609193267SjkimFixed a problem where "unknown" GPEs could be allowed to fire repeatedly if 2610193267Sjkimthe underlying AML code changed the GPE enable registers. Now, any unknown 2611218590Sjkimincoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately 2612218590Sjkimdisabled 2613193267Sjkiminstead of simply ignored. Rui Zhang. 2614193267Sjkim 2615193267SjkimFixed a problem with Index Fields where the Index register was incorrectly 2616193267Sjkimlimited to a maximum of 32 bits. Now any size may be used. 2617193267Sjkim 2618193267SjkimFixed a couple memory leaks associated with "implicit return" objects when 2619193267Sjkimthe AML Interpreter slack mode is enabled. Lin Ming BZ 349 2620193267Sjkim 2621193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2622193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2623193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2624193267Sjkima much larger code and data size. 2625193267Sjkim 2626193267Sjkim Previous Release: 2627193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 2628193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2629193267Sjkim Current Release: 2630193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2631193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2632193267Sjkim 2633193267Sjkim---------------------------------------- 2634193267Sjkim14 November 2007. Summary of changes for version 20071114: 2635193267Sjkim 2636193267Sjkim1) ACPI CA Core Subsystem: 2637193267Sjkim 2638193267SjkimImplemented event counters for each of the Fixed Events, the ACPI SCI 2639193267Sjkim(interrupt) itself, and control methods executed. Named 2640193267SjkimAcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These 2641193267Sjkimshould be useful for debugging and statistics. 2642193267Sjkim 2643193267SjkimImplemented a new external interface, AcpiGetStatistics, to retrieve the 2644193267Sjkimcontents of the various event counters. Returns the current values for 2645193267SjkimAcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and 2646193267SjkimAcpiMethodCount. The interface can be expanded in the future if new counters 2647193267Sjkimare added. Device drivers should use this interface rather than access the 2648193267Sjkimcounters directly. 2649193267Sjkim 2650193267SjkimFixed a problem with the FromBCD and ToBCD operators. With some compilers, 2651193267Sjkimthe ShortDivide function worked incorrectly, causing problems with the BCD 2652193267Sjkimfunctions with large input values. A truncation from 64-bit to 32-bit 2653193267Sjkiminadvertently occurred. Internal BZ 435. Lin Ming 2654193267Sjkim 2655193267SjkimFixed a problem with Index references passed as method arguments. References 2656193267Sjkimpassed as arguments to control methods were dereferenced immediately (before 2657193267Sjkimcontrol was passed to the called method). The references are now correctly 2658193267Sjkimpassed directly to the called method. BZ 5389. Lin Ming 2659193267Sjkim 2660193267SjkimFixed a problem with CopyObject used in conjunction with the Index operator. 2661193267SjkimThe reference was incorrectly dereferenced before the copy. The reference is 2662193267Sjkimnow correctly copied. BZ 5391. Lin Ming 2663193267Sjkim 2664193267SjkimFixed a problem with Control Method references within Package objects. These 2665193267Sjkimreferences are now correctly generated. This completes the package 2666193267Sjkimconstruction overhaul that began in version 20071019. 2667193267Sjkim 2668193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2669193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2670193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2671193267Sjkima much larger code and data size. 2672193267Sjkim 2673193267Sjkim Previous Release: 2674193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2675193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2676193267Sjkim Current Release: 2677193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 2678193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2679193267Sjkim 2680193267Sjkim 2681193267Sjkim2) iASL Compiler/Disassembler and Tools: 2682193267Sjkim 2683193267SjkimThe AcpiExec utility now installs handlers for all of the predefined 2684193267SjkimOperation Region types. New types supported are: PCI_Config, CMOS, and 2685193267SjkimPCIBARTarget. 2686193267Sjkim 2687193267SjkimFixed a problem with the 64-bit version of AcpiExec where the extended (64- 2688193267Sjkimbit) address fields for the DSDT and FACS within the FADT were not being 2689193267Sjkimused, causing truncation of the upper 32-bits of these addresses. Lin Ming 2690193267Sjkimand Bob Moore 2691193267Sjkim 2692193267Sjkim---------------------------------------- 2693193267Sjkim19 October 2007. Summary of changes for version 20071019: 2694193267Sjkim 2695193267Sjkim1) ACPI CA Core Subsystem: 2696193267Sjkim 2697193267SjkimFixed a problem with the Alias operator when the target of the alias is a 2698193267Sjkimnamed ASL operator that opens a new scope -- Scope, Device, PowerResource, 2699193267SjkimProcessor, and ThermalZone. In these cases, any children of the original 2700193267Sjkimoperator could not be accessed via the alias, potentially causing unexpected 2701193267SjkimAE_NOT_FOUND exceptions. (BZ 9067) 2702193267Sjkim 2703193267SjkimFixed a problem with the Package operator where all named references were 2704193267Sjkimcreated as object references and left otherwise unresolved. According to the 2705193267SjkimACPI specification, a Package can only contain Data Objects or references to 2706193267Sjkimcontrol methods. The implication is that named references to Data Objects 2707193267Sjkim(Integer, Buffer, String, Package, BufferField, Field) should be resolved 2708193267Sjkimimmediately upon package creation. This is the approach taken with this 2709193267Sjkimchange. References to all other named objects (Methods, Devices, Scopes, 2710193267Sjkimetc.) are all now properly created as reference objects. (BZ 5328) 2711193267Sjkim 2712193267SjkimReverted a change to Notify handling that was introduced in version 2713193267Sjkim20070508. This version changed the Notify handling from asynchronous to 2714193267Sjkimfully synchronous (Device driver Notify handling with respect to the Notify 2715193267SjkimASL operator). It was found that this change caused more problems than it 2716193267Sjkimsolved and was removed by most users. 2717193267Sjkim 2718193267SjkimFixed a problem with the Increment and Decrement operators where the type of 2719193267Sjkimthe target object could be unexpectedly and incorrectly changed. (BZ 353) 2720193267SjkimLin Ming. 2721193267Sjkim 2722193267SjkimFixed a problem with the Load and LoadTable operators where the table 2723193267Sjkimlocation within the namespace was ignored. Instead, the table was always 2724193267Sjkimloaded into the root or current scope. Lin Ming. 2725193267Sjkim 2726193267SjkimFixed a problem with the Load operator when loading a table from a buffer 2727193267Sjkimobject. The input buffer was prematurely zeroed and/or deleted. (BZ 577) 2728193267Sjkim 2729193267SjkimFixed a problem with the Debug object where a store of a DdbHandle reference 2730193267Sjkimobject to the Debug object could cause a fault. 2731193267Sjkim 2732193267SjkimAdded a table checksum verification for the Load operator, in the case where 2733193267Sjkimthe load is from a buffer. (BZ 578). 2734193267Sjkim 2735193267SjkimImplemented additional parameter validation for the LoadTable operator. The 2736193267Sjkimlength of the input strings SignatureString, OemIdString, and OemTableId are 2737193267Sjkimnow checked for maximum lengths. (BZ 582) Lin Ming. 2738193267Sjkim 2739193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2740193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2741193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2742193267Sjkima much larger code and data size. 2743193267Sjkim 2744193267Sjkim Previous Release: 2745193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2746193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2747193267Sjkim Current Release: 2748193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2749193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2750193267Sjkim 2751193267Sjkim 2752193267Sjkim2) iASL Compiler/Disassembler: 2753193267Sjkim 2754193267SjkimFixed a problem where if a single file was specified and the file did not 2755193267Sjkimexist, no error message was emitted. (Introduced with wildcard support in 2756193267Sjkimversion 20070917.) 2757193267Sjkim 2758193267Sjkim---------------------------------------- 2759193267Sjkim19 September 2007. Summary of changes for version 20070919: 2760193267Sjkim 2761193267Sjkim1) ACPI CA Core Subsystem: 2762193267Sjkim 2763193267SjkimDesigned and implemented new external interfaces to install and remove 2764193267Sjkimhandlers for ACPI table-related events. Current events that are defined are 2765193267SjkimLOAD and UNLOAD. These interfaces allow the host to track ACPI tables as 2766193267Sjkimthey are dynamically loaded and unloaded. See AcpiInstallTableHandler and 2767193267SjkimAcpiRemoveTableHandler. (Lin Ming and Bob Moore) 2768193267Sjkim 2769193267SjkimFixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 2770193267Sjkim(acpi_serialized option on Linux) could cause some systems to hang during 2771193267Sjkiminitialization. (Bob Moore) BZ 8171 2772193267Sjkim 2773193267SjkimFixed a problem where objects of certain types (Device, ThermalZone, 2774193267SjkimProcessor, PowerResource) can be not found if they are declared and 2775193267Sjkimreferenced from within the same control method (Lin Ming) BZ 341 2776193267Sjkim 2777193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2778193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2779193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2780193267Sjkima much larger code and data size. 2781193267Sjkim 2782193267Sjkim Previous Release: 2783193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2784193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2785193267Sjkim Current Release: 2786193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2787193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2788193267Sjkim 2789193267Sjkim 2790193267Sjkim2) iASL Compiler/Disassembler: 2791193267Sjkim 2792193267SjkimImplemented support to allow multiple files to be compiled/disassembled in a 2793193267Sjkimsingle invocation. This includes command line wildcard support for both the 2794193267SjkimWindows and Unix versions of the compiler. This feature simplifies the 2795193267Sjkimdisassembly and compilation of multiple ACPI tables in a single directory. 2796193267Sjkim 2797193267Sjkim---------------------------------------- 2798193267Sjkim08 May 2007. Summary of changes for version 20070508: 2799193267Sjkim 2800193267Sjkim1) ACPI CA Core Subsystem: 2801193267Sjkim 2802193267SjkimImplemented a Microsoft compatibility design change for the handling of the 2803193267SjkimNotify AML operator. Previously, notify handlers were dispatched and 2804193267Sjkimexecuted completely asynchronously in a deferred thread. The new design 2805193267Sjkimstill executes the notify handlers in a different thread, but the original 2806193267Sjkimthread that executed the Notify() now waits at a synchronization point for 2807193267Sjkimthe notify handler to complete. Some machines depend on a synchronous Notify 2808193267Sjkimoperator in order to operate correctly. 2809193267Sjkim 2810193267SjkimImplemented support to allow Package objects to be passed as method 2811193267Sjkimarguments to the external AcpiEvaluateObject interface. Previously, this 2812193267Sjkimwould return the AE_NOT_IMPLEMENTED exception. This feature had not been 2813193267Sjkimimplemented since there were no reserved control methods that required it 2814193267Sjkimuntil recently. 2815193267Sjkim 2816193267SjkimFixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that 2817193267Sjkimcontained invalid non-zero values in reserved fields could cause later 2818193267Sjkimfailures because these fields have meaning in later revisions of the FADT. 2819193267SjkimFor incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields 2820193267Sjkimare: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.) 2821193267Sjkim 2822193267SjkimFixed a problem where the Global Lock handle was not properly updated if a 2823193267Sjkimthread that acquired the Global Lock via executing AML code then attempted 2824193267Sjkimto acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe 2825193267SjkimLiu. 2826193267Sjkim 2827193267SjkimFixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list 2828193267Sjkimcould be corrupted if the interrupt being removed was at the head of the 2829193267Sjkimlist. Reported by Linn Crosetto. 2830193267Sjkim 2831193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2832193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2833193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2834193267Sjkima much larger code and data size. 2835193267Sjkim 2836193267Sjkim Previous Release: 2837193267Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2838193267Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2839193267Sjkim Current Release: 2840193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2841193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2842193267Sjkim 2843193267Sjkim---------------------------------------- 2844167802Sjkim20 March 2007. Summary of changes for version 20070320: 2845167802Sjkim 2846167802Sjkim1) ACPI CA Core Subsystem: 2847167802Sjkim 2848193267SjkimImplemented a change to the order of interpretation and evaluation of AML 2849193267Sjkimoperand objects within the AML interpreter. The interpreter now evaluates 2850193267Sjkimoperands in the order that they appear in the AML stream (and the 2851193267Sjkimcorresponding ASL code), instead of in the reverse order (after the entire 2852193267Sjkimoperand list has been parsed). The previous behavior caused several subtle 2853193267Sjkimincompatibilities with the Microsoft AML interpreter as well as being 2854193267Sjkimsomewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov. 2855167802Sjkim 2856193267SjkimImplemented a change to the ACPI Global Lock support. All interfaces to the 2857193267Sjkimglobal lock now allow the same thread to acquire the lock multiple times. 2858193267SjkimThis affects the AcpiAcquireGlobalLock external interface to the global lock 2859193267Sjkimas well as the internal use of the global lock to support AML fields -- a 2860193267Sjkimcontrol method that is holding the global lock can now simultaneously access 2861193267SjkimAML fields that require global lock protection. Previously, in both cases, 2862193267Sjkimthis would have resulted in an AE_ALREADY_ACQUIRED exception. The change to 2863193267SjkimAcpiAcquireGlobalLock is of special interest to drivers for the Embedded 2864193267SjkimController. There is no change to the behavior of the AML Acquire operator, 2865193267Sjkimas this can already be used to acquire a mutex multiple times by the same 2866193267Sjkimthread. BZ 8066. With assistance from Alexey Starikovskiy. 2867167802Sjkim 2868193267SjkimFixed a problem where invalid objects could be referenced in the AML 2869193267SjkimInterpreter after error conditions. During operand evaluation, ensure that 2870193267Sjkimthe internal "Return Object" field is cleared on error and only valid 2871193267Sjkimpointers are stored there. Caused occasional access to deleted objects that 2872193267Sjkimresulted in "large reference count" warning messages. Valery Podrezov. 2873167802Sjkim 2874193267SjkimFixed a problem where an AE_STACK_OVERFLOW internal exception could occur on 2875193267Sjkimdeeply nested control method invocations. BZ 7873, local BZ 487. Valery 2876193267SjkimPodrezov. 2877167802Sjkim 2878193267SjkimFixed an internal problem with the handling of result objects on the 2879193267Sjkiminterpreter result stack. BZ 7872. Valery Podrezov. 2880167802Sjkim 2881193267SjkimRemoved obsolete code that handled the case where AML_NAME_OP is the target 2882193267Sjkimof a reference (Reference.Opcode). This code was no longer necessary. BZ 2883193267Sjkim7874. Valery Podrezov. 2884167802Sjkim 2885193267SjkimRemoved obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a 2886193267Sjkimremnant from the previously discontinued 16-bit support. 2887167802Sjkim 2888193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2889193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2890193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2891193267Sjkima much larger code and data size. 2892167802Sjkim 2893167802Sjkim Previous Release: 2894167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2895167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2896167802Sjkim Current Release: 2897167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2898167802Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2899167802Sjkim 2900167802Sjkim---------------------------------------- 2901167802Sjkim26 January 2007. Summary of changes for version 20070126: 2902167802Sjkim 2903167802Sjkim1) ACPI CA Core Subsystem: 2904167802Sjkim 2905193267SjkimAdded the 2007 copyright to all module headers and signons. This affects 2906193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2907193267Sjkimthe utilities. 2908167802Sjkim 2909193267SjkimImplemented a fix for an incorrect parameter passed to AcpiTbDeleteTable 2910193267Sjkimduring a table load. A bad pointer was passed in the case where the DSDT is 2911193267Sjkimoverridden, causing a fault in this case. 2912167802Sjkim 2913193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2914193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2915193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2916193267Sjkima much larger code and data size. 2917167802Sjkim 2918167802Sjkim Previous Release: 2919167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2920167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2921167802Sjkim Current Release: 2922167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2923167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2924167802Sjkim 2925167802Sjkim---------------------------------------- 2926167802Sjkim15 December 2006. Summary of changes for version 20061215: 2927167802Sjkim 2928167802Sjkim1) ACPI CA Core Subsystem: 2929167802Sjkim 2930193267SjkimSupport for 16-bit ACPICA has been completely removed since it is no longer 2931193267Sjkimnecessary and it clutters the code. All 16-bit macros, types, and 2932193267Sjkimconditional compiles have been removed, cleaning up and simplifying the code 2933193267Sjkimacross the entire subsystem. DOS support is no longer needed since the 2934193267Sjkimbootable Linux firmware kit is now available. 2935167802Sjkim 2936193267SjkimThe handler for the Global Lock is now removed during AcpiTerminate to 2937193267Sjkimenable a clean subsystem restart, via the implementation of the 2938193267SjkimAcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz, 2939193267SjkimHP) 2940167802Sjkim 2941193267SjkimImplemented enhancements to the multithreading support within the debugger 2942193267Sjkimto enable improved multithreading debugging and evaluation of the subsystem. 2943167802Sjkim(Valery Podrezov) 2944167802Sjkim 2945193267SjkimDebugger: Enhanced the Statistics/Memory command to emit the total (maximum) 2946193267Sjkimmemory used during the execution, as well as the maximum memory consumed by 2947193267Sjkimeach of the various object types. (Valery Podrezov) 2948167802Sjkim 2949193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2950193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2951193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2952193267Sjkima much larger code and data size. 2953193267Sjkim 2954167802Sjkim Previous Release: 2955167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2956167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2957167802Sjkim Current Release: 2958167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2959167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2960167802Sjkim 2961167802Sjkim 2962167802Sjkim2) iASL Compiler/Disassembler and Tools: 2963167802Sjkim 2964193267SjkimAcpiExec: Implemented a new option (-m) to display full memory use 2965193267Sjkimstatistics upon subsystem/program termination. (Valery Podrezov) 2966167802Sjkim 2967167802Sjkim---------------------------------------- 2968167802Sjkim09 November 2006. Summary of changes for version 20061109: 2969167802Sjkim 2970167802Sjkim1) ACPI CA Core Subsystem: 2971167802Sjkim 2972193267SjkimOptimized the Load ASL operator in the case where the source operand is an 2973193267Sjkimoperation region. Simply map the operation region memory, instead of 2974193267Sjkimperforming a bytewise read. (Region must be of type SystemMemory, see 2975193267Sjkimbelow.) 2976167802Sjkim 2977193267SjkimFixed the Load ASL operator for the case where the source operand is a 2978193267Sjkimregion field. A buffer object is also allowed as the source operand. BZ 480 2979167802Sjkim 2980193267SjkimFixed a problem where the Load ASL operator allowed the source operand to be 2981193267Sjkiman operation region of any type. It is now restricted to regions of type 2982193267SjkimSystemMemory, as per the ACPI specification. BZ 481 2983167802Sjkim 2984193267SjkimAdditional cleanup and optimizations for the new Table Manager code. 2985167802Sjkim 2986193267SjkimAcpiEnable will now fail if all of the required ACPI tables are not loaded 2987193267Sjkim(FADT, FACS, DSDT). BZ 477 2988167802Sjkim 2989193267SjkimAdded #pragma pack(8/4) to acobject.h to ensure that the structures in this 2990193267Sjkimheader are always compiled as aligned. The ACPI_OPERAND_OBJECT has been 2991193267Sjkimmanually optimized to be aligned and will not work if it is byte-packed. 2992167802Sjkim 2993193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2994193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2995193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2996193267Sjkima much larger code and data size. 2997167802Sjkim 2998167802Sjkim Previous Release: 2999167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 3000167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 3001167802Sjkim Current Release: 3002167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 3003167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 3004167802Sjkim 3005167802Sjkim 3006167802Sjkim2) iASL Compiler/Disassembler and Tools: 3007167802Sjkim 3008193267SjkimFixed a problem where the presence of the _OSI predefined control method 3009193267Sjkimwithin complex expressions could cause an internal compiler error. 3010167802Sjkim 3011193267SjkimAcpiExec: Implemented full region support for multiple address spaces. 3012193267SjkimSpaceId is now part of the REGION object. BZ 429 3013167802Sjkim 3014167802Sjkim---------------------------------------- 3015167802Sjkim11 October 2006. Summary of changes for version 20061011: 3016167802Sjkim 3017167802Sjkim1) ACPI CA Core Subsystem: 3018167802Sjkim 3019193267SjkimCompleted an AML interpreter performance enhancement for control method 3020193267Sjkimexecution. Previously a 2-pass parse/execution, control methods are now 3021193267Sjkimcompletely parsed and executed in a single pass. This improves overall 3022193267Sjkiminterpreter performance by ~25%, reduces code size, and reduces CPU stack 3023193267Sjkimuse. (Valery Podrezov + interpreter changes in version 20051202 that 3024193267Sjkimeliminated namespace loading during the pass one parse.) 3025167802Sjkim 3026193267SjkimImplemented _CID support for PCI Root Bridge detection. If the _HID does not 3027193267Sjkimmatch the predefined PCI Root Bridge IDs, the _CID list (if present) is now 3028193267Sjkimobtained and also checked for an ID match. 3029167802Sjkim 3030193267SjkimImplemented additional support for the PCI _ADR execution: upsearch until a 3031193267Sjkimdevice scope is found before executing _ADR. This allows PCI_Config 3032193267Sjkimoperation regions to be declared locally within control methods underneath 3033193267SjkimPCI device objects. 3034167802Sjkim 3035193267SjkimFixed a problem with a possible race condition between threads executing 3036193267SjkimAcpiWalkNamespace and the AML interpreter. This condition was removed by 3037193267Sjkimmodifying AcpiWalkNamespace to (by default) ignore all temporary namespace 3038193267Sjkimentries created during any concurrent control method execution. An 3039193267Sjkimadditional namespace race condition is known to exist between 3040193267SjkimAcpiWalkNamespace and the Load/Unload ASL operators and is still under 3041193267Sjkiminvestigation. 3042167802Sjkim 3043193267SjkimRestructured the AML ParseLoop function, breaking it into several 3044193267Sjkimsubfunctions in order to reduce CPU stack use and improve maintainability. 3045193267Sjkim(Mikhail Kouzmich) 3046167802Sjkim 3047193267SjkimAcpiGetHandle: Fix for parameter validation to detect invalid combinations 3048193267Sjkimof prefix handle and pathname. BZ 478 3049167802Sjkim 3050193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3051193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3052193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3053193267Sjkima much larger code and data size. 3054167802Sjkim 3055167802Sjkim Previous Release: 3056167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 3057167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 3058167802Sjkim Current Release: 3059167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 3060167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 3061167802Sjkim 3062167802Sjkim2) iASL Compiler/Disassembler and Tools: 3063167802Sjkim 3064193267SjkimPorted the -g option (get local ACPI tables) to the new ACPICA Table Manager 3065193267Sjkimto restore original behavior. 3066167802Sjkim 3067167802Sjkim---------------------------------------- 3068167802Sjkim27 September 2006. Summary of changes for version 20060927: 3069167802Sjkim 3070167802Sjkim1) ACPI CA Core Subsystem: 3071167802Sjkim 3072193267SjkimRemoved the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. 3073193267SjkimThese functions now use a spinlock for mutual exclusion and the interrupt 3074193267Sjkimlevel indication flag is not needed. 3075167802Sjkim 3076193267SjkimFixed a problem with the Global Lock where the lock could appear to be 3077193267Sjkimobtained before it is actually obtained. The global lock semaphore was 3078193267Sjkiminadvertently created with one unit instead of zero units. (BZ 464) Fiodor 3079193267SjkimSuietov. 3080167802Sjkim 3081193267SjkimFixed a possible memory leak and fault in AcpiExResolveObjectToValue during 3082193267Sjkima read from a buffer or region field. (BZ 458) Fiodor Suietov. 3083167802Sjkim 3084193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3085193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3086193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3087193267Sjkima much larger code and data size. 3088167802Sjkim 3089167802Sjkim Previous Release: 3090167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 3091167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 3092167802Sjkim Current Release: 3093167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 3094167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 3095167802Sjkim 3096167802Sjkim 3097167802Sjkim2) iASL Compiler/Disassembler and Tools: 3098167802Sjkim 3099193267SjkimFixed a compilation problem with the pre-defined Resource Descriptor field 3100193267Sjkimnames where an "object does not exist" error could be incorrectly generated 3101193267Sjkimif the parent ResourceTemplate pathname places the template within a 3102193267Sjkimdifferent namespace scope than the current scope. (BZ 7212) 3103167802Sjkim 3104193267SjkimFixed a problem where the compiler could hang after syntax errors detected 3105193267Sjkimin an ElseIf construct. (BZ 453) 3106167802Sjkim 3107193267SjkimFixed a problem with the AmlFilename parameter to the DefinitionBlock() 3108193267Sjkimoperator. An incorrect output filename was produced when this parameter was 3109193267Sjkima null string (""). Now, the original input filename is used as the AML 3110193267Sjkimoutput filename, with an ".aml" extension. 3111167802Sjkim 3112193267SjkimImplemented a generic batch command mode for the AcpiExec utility (execute 3113193267Sjkimany AML debugger command) (Valery Podrezov). 3114167802Sjkim 3115167802Sjkim---------------------------------------- 3116167802Sjkim12 September 2006. Summary of changes for version 20060912: 3117167802Sjkim 3118167802Sjkim1) ACPI CA Core Subsystem: 3119167802Sjkim 3120193267SjkimEnhanced the implementation of the "serialized mode" of the interpreter 3121193267Sjkim(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 3122193267Sjkimspecified, instead of creating a serialization semaphore per control method, 3123193267Sjkimthe interpreter lock is simply no longer released before a blocking 3124193267Sjkimoperation during control method execution. This effectively makes the AML 3125193267SjkimInterpreter single-threaded. The overhead of a semaphore per-method is 3126193267Sjkimeliminated. 3127167802Sjkim 3128193267SjkimFixed a regression where an error was no longer emitted if a control method 3129193267Sjkimattempts to create 2 objects of the same name. This once again returns 3130193267SjkimAE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that 3131193267Sjkimwill dynamically serialize the control method to possible prevent future 3132193267Sjkimerrors. (BZ 440) 3133167802Sjkim 3134193267SjkimIntegrated a fix for a problem with PCI Express HID detection in the PCI 3135193267SjkimConfig Space setup procedure. (BZ 7145) 3136167802Sjkim 3137193267SjkimMoved all FADT-related functions to a new file, tbfadt.c. Eliminated the 3138193267SjkimAcpiHwInitialize function - the FADT registers are now validated when the 3139193267Sjkimtable is loaded. 3140167802Sjkim 3141193267SjkimAdded two new warnings during FADT verification - 1) if the FADT is larger 3142193267Sjkimthan the largest known FADT version, and 2) if there is a mismatch between a 3143193267Sjkim32-bit block address and the 64-bit X counterpart (when both are non-zero.) 3144167802Sjkim 3145193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3146193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3147193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3148193267Sjkima much larger code and data size. 3149167802Sjkim 3150167802Sjkim Previous Release: 3151167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 3152167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 3153167802Sjkim Current Release: 3154167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 3155167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 3156167802Sjkim 3157167802Sjkim 3158167802Sjkim2) iASL Compiler/Disassembler and Tools: 3159167802Sjkim 3160193267SjkimFixed a problem with the implementation of the Switch() operator where the 3161193267Sjkimtemporary variable was declared too close to the actual Switch, instead of 3162193267Sjkimat method level. This could cause a problem if the Switch() operator is 3163193267Sjkimwithin a while loop, causing an error on the second iteration. (BZ 460) 3164167802Sjkim 3165193267SjkimDisassembler - fix for error emitted for unknown type for target of scope 3166193267Sjkimoperator. Now, ignore it and continue. 3167167802Sjkim 3168193267SjkimDisassembly of an FADT now verifies the input FADT and reports any errors 3169193267Sjkimfound. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs. 3170167802Sjkim 3171193267SjkimDisassembly of raw data buffers with byte initialization data now prefixes 3172193267Sjkimeach output line with the current buffer offset. 3173167802Sjkim 3174193267SjkimDisassembly of ASF! table now includes all variable-length data fields at 3175193267Sjkimthe end of some of the subtables. 3176167802Sjkim 3177193267SjkimThe disassembler now emits a comment if a buffer appears to be a 3178193267SjkimResourceTemplate, but cannot be disassembled as such because the EndTag does 3179193267Sjkimnot appear at the very end of the buffer. 3180167802Sjkim 3181193267SjkimAcpiExec - Added the "-t" command line option to enable the serialized mode 3182193267Sjkimof the AML interpreter. 3183167802Sjkim 3184167802Sjkim---------------------------------------- 3185167802Sjkim31 August 2006. Summary of changes for version 20060831: 3186167802Sjkim 3187167802Sjkim1) ACPI CA Core Subsystem: 3188167802Sjkim 3189167802SjkimMiscellaneous fixes for the Table Manager: 3190193267Sjkim- Correctly initialize internal common FADT for all 64-bit "X" fields 3191167802Sjkim- Fixed a couple table mapping issues during table load 3192167802Sjkim- Fixed a couple alignment issues for IA64 3193167802Sjkim- Initialize input array to zero in AcpiInitializeTables 3194193267Sjkim- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader, 3195193267SjkimAcpiGetTableByIndex 3196167802Sjkim 3197193267SjkimChange for GPE support: when a "wake" GPE is received, all wake GPEs are now 3198193267Sjkimimmediately disabled to prevent the waking GPE from firing again and to 3199193267Sjkimprevent other wake GPEs from interrupting the wake process. 3200167802Sjkim 3201193267SjkimAdded the AcpiGpeCount global that tracks the number of processed GPEs, to 3202193267Sjkimbe used for debugging systems with a large number of ACPI interrupts. 3203167802Sjkim 3204193267SjkimImplemented support for the "DMAR" ACPI table (DMA Redirection Table) in 3205193267Sjkimboth the ACPICA headers and the disassembler. 3206167802Sjkim 3207193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3208193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3209193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3210193267Sjkima much larger code and data size. 3211167802Sjkim 3212167802Sjkim Previous Release: 3213167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 3214167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 3215167802Sjkim Current Release: 3216167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 3217167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 3218167802Sjkim 3219167802Sjkim 3220167802Sjkim2) iASL Compiler/Disassembler and Tools: 3221167802Sjkim 3222167802SjkimDisassembler support for the DMAR ACPI table. 3223167802Sjkim 3224167802Sjkim---------------------------------------- 3225167802Sjkim23 August 2006. Summary of changes for version 20060823: 3226167802Sjkim 3227167802Sjkim1) ACPI CA Core Subsystem: 3228167802Sjkim 3229193267SjkimThe Table Manager component has been completely redesigned and 3230193267Sjkimreimplemented. The new design is much simpler, and reduces the overall code 3231193267Sjkimand data size of the kernel-resident ACPICA by approximately 5%. Also, it is 3232193267Sjkimnow possible to obtain the ACPI tables very early during kernel 3233193267Sjkiminitialization, even before dynamic memory management is initialized. 3234193267Sjkim(Alexey Starikovskiy, Fiodor Suietov, Bob Moore) 3235167802Sjkim 3236167802SjkimObsolete ACPICA interfaces: 3237167802Sjkim 3238193267Sjkim- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init 3239193267Sjkimtime). 3240167802Sjkim- AcpiLoadTable: Not needed. 3241167802Sjkim- AcpiUnloadTable: Not needed. 3242167802Sjkim 3243167802SjkimNew ACPICA interfaces: 3244167802Sjkim 3245193267Sjkim- AcpiInitializeTables: Must be called before the table manager can be used. 3246193267Sjkim- AcpiReallocateRootTable: Used to transfer the root table to dynamically 3247193267Sjkimallocated memory after it becomes available. 3248193267Sjkim- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables 3249193267Sjkimin the RSDT/XSDT. 3250167802Sjkim 3251167802SjkimOther ACPICA changes: 3252167802Sjkim 3253193267Sjkim- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use 3254193267SjkimAcpiOsUnmapMemory to free this mapping. 3255193267Sjkim- AcpiGetTable returns the actual mapped table. The mapping is managed 3256193267Sjkiminternally and must not be deleted by the caller. Use of this interface 3257193267Sjkimcauses no additional dynamic memory allocation. 3258193267Sjkim- AcpiFindRootPointer: Support for physical addressing has been eliminated, 3259193267Sjkimit appeared to be unused. 3260193267Sjkim- The interface to AcpiOsMapMemory has changed to be consistent with the 3261193267Sjkimother allocation interfaces. 3262193267Sjkim- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary 3263193267Sjkimparameters. 3264193267Sjkim- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64- 3265193267Sjkimbit platforms. Was previously 64 bits on all platforms. 3266193267Sjkim- The interface to the ACPI Global Lock acquire/release macros have changed 3267193267Sjkimslightly since ACPICA no longer keeps a local copy of the FACS with a 3268193267Sjkimconstructed pointer to the actual global lock. 3269167802Sjkim 3270167802SjkimPorting to the new table manager: 3271167802Sjkim 3272193267Sjkim- AcpiInitializeTables: Must be called once, and can be called anytime 3273193267Sjkimduring the OS initialization process. It allows the host to specify an area 3274193267Sjkimof memory to be used to store the internal version of the RSDT/XSDT (root 3275193267Sjkimtable). This allows the host to access ACPI tables before memory management 3276193267Sjkimis initialized and running. 3277193267Sjkim- AcpiReallocateRootTable: Can be called after memory management is running 3278193267Sjkimto copy the root table to a dynamically allocated array, freeing up the 3279193267Sjkimscratch memory specified in the call to AcpiInitializeTables. 3280193267Sjkim- AcpiSubsystemInitialize: This existing interface is independent of the 3281193267SjkimTable Manager, and does not have to be called before the Table Manager can 3282193267Sjkimbe used, it only must be called before the rest of ACPICA can be used. 3283193267Sjkim- ACPI Tables: Some changes have been made to the names and structure of the 3284193267Sjkimactbl.h and actbl1.h header files and may require changes to existing code. 3285193267SjkimFor example, bitfields have been completely removed because of their lack of 3286193267Sjkimportability across C compilers. 3287193267Sjkim- Update interfaces to the Global Lock acquire/release macros if local 3288193267Sjkimversions are used. (see acwin.h) 3289167802Sjkim 3290167802SjkimObsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c 3291167802Sjkim 3292167802SjkimNew files: tbfind.c 3293167802Sjkim 3294193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3295193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3296193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3297193267Sjkima much larger code and data size. 3298167802Sjkim 3299167802Sjkim Previous Release: 3300167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 3301167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 3302167802Sjkim Current Release: 3303167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 3304167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 3305167802Sjkim 3306167802Sjkim 3307167802Sjkim2) iASL Compiler/Disassembler and Tools: 3308167802Sjkim 3309167802SjkimNo changes for this release. 3310167802Sjkim 3311167802Sjkim---------------------------------------- 3312167802Sjkim21 July 2006. Summary of changes for version 20060721: 3313167802Sjkim 3314167802Sjkim1) ACPI CA Core Subsystem: 3315167802Sjkim 3316193267SjkimThe full source code for the ASL test suite used to validate the iASL 3317193267Sjkimcompiler and the ACPICA core subsystem is being released with the ACPICA 3318193267Sjkimsource for the first time. The source is contained in a separate package and 3319193267Sjkimconsists of over 1100 files that exercise all ASL/AML operators. The package 3320193267Sjkimshould appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor 3321167802SjkimSuietov) 3322167802Sjkim 3323193267SjkimCompleted a new design and implementation for support of the ACPI Global 3324193267SjkimLock. On the OS side, the global lock is now treated as a standard AML 3325193267Sjkimmutex. Previously, multiple OS threads could "acquire" the global lock 3326193267Sjkimsimultaneously. However, this could cause the BIOS to be starved out of the 3327193267Sjkimlock - especially in cases such as the Embedded Controller driver where 3328193267Sjkimthere is a tight coupling between the OS and the BIOS. 3329167802Sjkim 3330193267SjkimImplemented an optimization for the ACPI Global Lock interrupt mechanism. 3331193267SjkimThe Global Lock interrupt handler no longer queues the execution of a 3332193267Sjkimseparate thread to signal the global lock semaphore. Instead, the semaphore 3333193267Sjkimis signaled directly from the interrupt handler. 3334167802Sjkim 3335193267SjkimImplemented support within the AML interpreter for package objects that 3336193267Sjkimcontain a larger AML length (package list length) than the package element 3337193267Sjkimcount. In this case, the length of the package is truncated to match the 3338193267Sjkimpackage element count. Some BIOS code apparently modifies the package length 3339193267Sjkimon the fly, and this change supports this behavior. Provides compatibility 3340193267Sjkimwith the MS AML interpreter. (With assistance from Fiodor Suietov) 3341167802Sjkim 3342193267SjkimImplemented a temporary fix for the BankValue parameter of a Bank Field to 3343193267Sjkimsupport all constant values, now including the Zero and One opcodes. 3344193267SjkimEvaluation of this parameter must eventually be converted to a full TermArg 3345193267Sjkimevaluation. A not-implemented error is now returned (temporarily) for non- 3346193267Sjkimconstant values for this parameter. 3347167802Sjkim 3348167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3349193267Sjkim- Fix for premature object deletion after CopyObject on Operation Region (BZ 3350193267Sjkim350) 3351167802Sjkim 3352193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3353193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3354193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3355193267Sjkima much larger code and data size. 3356167802Sjkim 3357167802Sjkim Previous Release: 3358167802Sjkim Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total 3359167802Sjkim Debug Version: 160.9K Code, 65.1K Data, 226.0K Total 3360167802Sjkim Current Release: 3361167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 3362167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 3363167802Sjkim 3364167802Sjkim 3365167802Sjkim2) iASL Compiler/Disassembler and Tools: 3366167802Sjkim 3367167802SjkimNo changes for this release. 3368167802Sjkim 3369167802Sjkim---------------------------------------- 3370167802Sjkim07 July 2006. Summary of changes for version 20060707: 3371167802Sjkim 3372167802Sjkim1) ACPI CA Core Subsystem: 3373167802Sjkim 3374193267SjkimAdded the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers 3375193267Sjkimthat do not allow the initialization of address pointers within packed 3376193267Sjkimstructures - even though the hardware itself may support misaligned 3377193267Sjkimtransfers. Some of the debug data structures are packed by default to 3378193267Sjkimminimize size. 3379167802Sjkim 3380193267SjkimAdded an error message for the case where AcpiOsGetThreadId() returns zero. 3381193267SjkimA non-zero value is required by the core ACPICA code to ensure the proper 3382193267Sjkimoperation of AML mutexes and recursive control methods. 3383167802Sjkim 3384193267SjkimThe DSDT is now the only ACPI table that determines whether the AML 3385193267Sjkiminterpreter is in 32-bit or 64-bit mode. Not really a functional change, but 3386193267Sjkimthe hooks for per-table 32/64 switching have been removed from the code. A 3387193267Sjkimclarification to the ACPI specification is forthcoming in ACPI 3.0B. 3388167802Sjkim 3389193267SjkimFixed a possible leak of an OwnerID in the error path of 3390193267SjkimAcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID 3391193267Sjkimdeletion to a single place in AcpiTbUninstallTable to correct possible leaks 3392193267Sjkimwhen using the AcpiTbDeleteTablesByType interface (with assistance from 3393193267SjkimLance Ortiz.) 3394167802Sjkim 3395193267SjkimFixed a problem with Serialized control methods where the semaphore 3396193267Sjkimassociated with the method could be over-signaled after multiple method 3397193267Sjkiminvocations. 3398167802Sjkim 3399193267SjkimFixed two issues with the locking of the internal namespace data structure. 3400193267SjkimBoth the Unload() operator and AcpiUnloadTable interface now lock the 3401193267Sjkimnamespace during the namespace deletion associated with the table unload 3402193267Sjkim(with assistance from Linn Crosetto.) 3403167802Sjkim 3404167802SjkimFixed problem reports (Valery Podrezov) integrated: 3405193267Sjkim- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426) 3406167802Sjkim 3407167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3408167802Sjkim- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) 3409193267Sjkim- On Address Space handler deletion, needless deactivation call (BZ 374) 3410193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) 3411193267Sjkim- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone 3412193267Sjkim(BZ 376) 3413193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) 3414167802Sjkim- Minimum Length of RSDT should be validated (BZ 379) 3415193267Sjkim- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no 3416193267SjkimHandler (BZ (380) 3417193267Sjkim- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded 3418193267Sjkim(BZ 381) 3419167802Sjkim 3420193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3421193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3422193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3423193267Sjkima much larger code and data size. 3424167802Sjkim 3425167802Sjkim Previous Release: 3426167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 3427167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 3428167802Sjkim Current Release: 3429167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 3430167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 3431167802Sjkim 3432167802Sjkim 3433167802Sjkim2) iASL Compiler/Disassembler and Tools: 3434167802Sjkim 3435167802SjkimFixed problem reports: 3436193267SjkimCompiler segfault when ASL contains a long (>1024) String declaration (BZ 3437193267Sjkim436) 3438167802Sjkim 3439167802Sjkim---------------------------------------- 3440167802Sjkim23 June 2006. Summary of changes for version 20060623: 3441167802Sjkim 3442167802Sjkim1) ACPI CA Core Subsystem: 3443167802Sjkim 3444193267SjkimImplemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This 3445193267Sjkimallows the type to be customized to the host OS for improved efficiency 3446193267Sjkim(since a spinlock is usually a very small object.) 3447167802Sjkim 3448193267SjkimImplemented support for "ignored" bits in the ACPI registers. According to 3449193267Sjkimthe ACPI specification, these bits should be preserved when writing the 3450193267Sjkimregisters via a read/modify/write cycle. There are 3 bits preserved in this 3451193267Sjkimmanner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. 3452167802Sjkim 3453193267SjkimImplemented the initial deployment of new OSL mutex interfaces. Since some 3454193267Sjkimhost operating systems have separate mutex and semaphore objects, this 3455193267Sjkimfeature was requested. The base code now uses mutexes (and the new mutex 3456193267Sjkiminterfaces) wherever a binary semaphore was used previously. However, for 3457193267Sjkimthe current release, the mutex interfaces are defined as macros to map them 3458193267Sjkimto the existing semaphore interfaces. Therefore, no OSL changes are required 3459193267Sjkimat this time. (See acpiosxf.h) 3460167802Sjkim 3461193267SjkimFixed several problems with the support for the control method SyncLevel 3462193267Sjkimparameter. The SyncLevel now works according to the ACPI specification and 3463193267Sjkimin concert with the Mutex SyncLevel parameter, since the current SyncLevel 3464193267Sjkimis a property of the executing thread. Mutual exclusion for control methods 3465193267Sjkimis now implemented with a mutex instead of a semaphore. 3466167802Sjkim 3467193267SjkimFixed three instances of the use of the C shift operator in the bitfield 3468193267Sjkimsupport code (exfldio.c) to avoid the use of a shift value larger than the 3469193267Sjkimtarget data width. The behavior of C compilers is undefined in this case and 3470193267Sjkimcan cause unpredictable results, and therefore the case must be detected and 3471193267Sjkimavoided. (Fiodor Suietov) 3472167802Sjkim 3473193267SjkimAdded an info message whenever an SSDT or OEM table is loaded dynamically 3474193267Sjkimvia the Load() or LoadTable() ASL operators. This should improve debugging 3475193267Sjkimcapability since it will show exactly what tables have been loaded (beyond 3476193267Sjkimthe tables present in the RSDT/XSDT.) 3477167802Sjkim 3478193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3479193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3480193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3481193267Sjkima much larger code and data size. 3482167802Sjkim 3483167802Sjkim Previous Release: 3484167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 3485167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 3486167802Sjkim Current Release: 3487167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 3488167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 3489167802Sjkim 3490167802Sjkim 3491167802Sjkim2) iASL Compiler/Disassembler and Tools: 3492167802Sjkim 3493167802SjkimNo changes for this release. 3494167802Sjkim 3495167802Sjkim---------------------------------------- 3496167802Sjkim08 June 2006. Summary of changes for version 20060608: 3497167802Sjkim 3498167802Sjkim1) ACPI CA Core Subsystem: 3499167802Sjkim 3500193267SjkimConverted the locking mutex used for the ACPI hardware to a spinlock. This 3501193267Sjkimchange should eliminate all problems caused by attempting to acquire a 3502193267Sjkimsemaphore at interrupt level, and it means that all ACPICA external 3503193267Sjkiminterfaces that directly access the ACPI hardware can be safely called from 3504193267Sjkiminterrupt level. OSL code that implements the semaphore interfaces should be 3505193267Sjkimable to eliminate any workarounds for being called at interrupt level. 3506167802Sjkim 3507193267SjkimFixed a regression introduced in 20060526 where the ACPI device 3508193267Sjkiminitialization could be prematurely aborted with an AE_NOT_FOUND if a device 3509193267Sjkimdid not have an optional _INI method. 3510167802Sjkim 3511193267SjkimFixed an IndexField issue where a write to the Data Register should be 3512193267Sjkimlimited in size to the AccessSize (width) of the IndexField itself. (BZ 433, 3513193267SjkimFiodor Suietov) 3514167802Sjkim 3515167802SjkimFixed problem reports (Valery Podrezov) integrated: 3516193267Sjkim- Allow store of ThermalZone objects to Debug object (BZ 5369/5370) 3517167802Sjkim 3518167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3519193267Sjkim- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364) 3520167802Sjkim 3521193267SjkimRemoved four global mutexes that were obsolete and were no longer being 3522193267Sjkimused. 3523167802Sjkim 3524193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3525193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3526193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3527193267Sjkima much larger code and data size. 3528167802Sjkim 3529167802Sjkim Previous Release: 3530167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3531167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3532167802Sjkim Current Release: 3533167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 3534167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 3535167802Sjkim 3536167802Sjkim 3537167802Sjkim2) iASL Compiler/Disassembler and Tools: 3538167802Sjkim 3539193267SjkimFixed a fault when using -g option (get tables from registry) on Windows 3540193267Sjkimmachines. 3541167802Sjkim 3542167802SjkimFixed problem reports integrated: 3543193267Sjkim- Generate error if CreateField NumBits parameter is zero. (BZ 405) 3544193267Sjkim- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor 3545193267SjkimSuietov) 3546167802Sjkim- Global table revision override (-r) is ignored (BZ 413) 3547167802Sjkim 3548167802Sjkim---------------------------------------- 3549167802Sjkim26 May 2006. Summary of changes for version 20060526: 3550167802Sjkim 3551167802Sjkim1) ACPI CA Core Subsystem: 3552167802Sjkim 3553193267SjkimRestructured, flattened, and simplified the internal interfaces for 3554193267Sjkimnamespace object evaluation - resulting in smaller code, less CPU stack use, 3555193267Sjkimand fewer interfaces. (With assistance from Mikhail Kouzmich) 3556167802Sjkim 3557193267SjkimFixed a problem with the CopyObject operator where the first parameter was 3558193267Sjkimnot typed correctly for the parser, interpreter, compiler, and disassembler. 3559193267SjkimCaused various errors and unexpected behavior. 3560167802Sjkim 3561193267SjkimFixed a problem where a ShiftLeft or ShiftRight of more than 64 bits 3562193267Sjkimproduced incorrect results with some C compilers. Since the behavior of C 3563193267Sjkimcompilers when the shift value is larger than the datatype width is 3564193267Sjkimapparently not well defined, the interpreter now detects this condition and 3565193267Sjkimsimply returns zero as expected in all such cases. (BZ 395) 3566167802Sjkim 3567167802SjkimFixed problem reports (Valery Podrezov) integrated: 3568193267Sjkim- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329) 3569193267Sjkim- Allow interpreter to handle nested method declarations (BZ 5361) 3570167802Sjkim 3571167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3572193267Sjkim- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355) 3573193267Sjkim- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356) 3574193267Sjkim- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357) 3575193267Sjkim- Resource Manager should return AE_TYPE for non-device objects (BZ 358) 3576167802Sjkim- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) 3577193267Sjkim- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360) 3578167802Sjkim- Incomplete cleanup branch in AcpiPsParseAml (BZ 361) 3579167802Sjkim- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362) 3580193267Sjkim- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) 3581193267Sjkim- Status of the Global Initialization Handler call not used (BZ 366) 3582193267Sjkim- Incorrect object parameter to Global Initialization Handler (BZ 367) 3583167802Sjkim 3584193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3585193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3586193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3587193267Sjkima much larger code and data size. 3588167802Sjkim 3589167802Sjkim Previous Release: 3590167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3591167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3592167802Sjkim Current Release: 3593167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3594167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3595167802Sjkim 3596167802Sjkim 3597167802Sjkim2) iASL Compiler/Disassembler and Tools: 3598167802Sjkim 3599193267SjkimModified the parser to allow the names IO, DMA, and IRQ to be used as 3600193267Sjkimnamespace identifiers with no collision with existing resource descriptor 3601193267Sjkimmacro names. This provides compatibility with other ASL compilers and is 3602193267Sjkimmost useful for disassembly/recompilation of existing tables without parse 3603167802Sjkimerrors. (With assistance from Thomas Renninger) 3604167802Sjkim 3605193267SjkimDisassembler: fixed an incorrect disassembly problem with the 3606193267SjkimDataTableRegion and CopyObject operators. Fixed a possible fault during 3607193267Sjkimdisassembly of some Alias operators. 3608167802Sjkim 3609167802Sjkim---------------------------------------- 3610167802Sjkim12 May 2006. Summary of changes for version 20060512: 3611167802Sjkim 3612167802Sjkim1) ACPI CA Core Subsystem: 3613167802Sjkim 3614193267SjkimReplaced the AcpiOsQueueForExecution interface with a new interface named 3615193267SjkimAcpiOsExecute. The major difference is that the new interface does not have 3616193267Sjkima Priority parameter, this appeared to be useless and has been replaced by a 3617193267SjkimType parameter. The Type tells the host what type of execution is being 3618193267Sjkimrequested, such as global lock handler, notify handler, GPE handler, etc. 3619193267SjkimThis allows the host to queue and execute the request as appropriate for the 3620193267Sjkimrequest type, possibly using different work queues and different priorities 3621193267Sjkimfor the various request types. This enables fixes for multithreading 3622193267Sjkimdeadlock problems such as BZ #5534, and will require changes to all existing 3623193267SjkimOS interface layers. (Alexey Starikovskiy and Bob Moore) 3624167802Sjkim 3625193267SjkimFixed a possible memory leak associated with the support for the so-called 3626193267Sjkim"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor 3627193267SjkimSuietov) 3628167802Sjkim 3629193267SjkimFixed a problem with the Load() operator where a table load from an 3630193267Sjkimoperation region could overwrite an internal table buffer by up to 7 bytes 3631193267Sjkimand cause alignment faults on IPF systems. (With assistance from Luming Yu) 3632167802Sjkim 3633193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3634193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3635193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3636193267Sjkima much larger code and data size. 3637167802Sjkim 3638167802Sjkim Previous Release: 3639167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3640167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3641167802Sjkim Current Release: 3642167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3643167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3644167802Sjkim 3645167802Sjkim 3646167802Sjkim 3647167802Sjkim2) iASL Compiler/Disassembler and Tools: 3648167802Sjkim 3649193267SjkimDisassembler: Implemented support to cross reference the internal namespace 3650193267Sjkimand automatically generate ASL External() statements for symbols not defined 3651193267Sjkimwithin the current table being disassembled. This will simplify the 3652193267Sjkimdisassembly and recompilation of interdependent tables such as SSDTs since 3653193267Sjkimthese statements will no longer have to be added manually. 3654167802Sjkim 3655193267SjkimDisassembler: Implemented experimental support to automatically detect 3656193267Sjkiminvocations of external control methods and generate appropriate External() 3657193267Sjkimstatements. This is problematic because the AML cannot be correctly parsed 3658193267Sjkimuntil the number of arguments for each control method is known. Currently, 3659193267Sjkimstandalone method invocations and invocations as the source operand of a 3660193267SjkimStore() statement are supported. 3661167802Sjkim 3662193267SjkimDisassembler: Implemented support for the ASL pseudo-operators LNotEqual, 3663193267SjkimLLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()), 3664193267SjkimLNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code 3665193267Sjkimmore readable and likely closer to the original ASL source. 3666167802Sjkim 3667167802Sjkim---------------------------------------- 3668167802Sjkim21 April 2006. Summary of changes for version 20060421: 3669167802Sjkim 3670167802Sjkim1) ACPI CA Core Subsystem: 3671167802Sjkim 3672193267SjkimRemoved a device initialization optimization introduced in 20051216 where 3673193267Sjkimthe _STA method was not run unless an _INI was also present for the same 3674193267Sjkimdevice. This optimization could cause problems because it could allow _INI 3675193267Sjkimmethods to be run within a not-present device subtree. (If a not-present 3676193267Sjkimdevice had no _INI, _STA would not be run, the not-present status would not 3677193267Sjkimbe discovered, and the children of the device would be incorrectly 3678167802Sjkimtraversed.) 3679167802Sjkim 3680193267SjkimImplemented a new _STA optimization where namespace subtrees that do not 3681193267Sjkimcontain _INI are identified and ignored during device initialization. 3682193267SjkimSelectively running _STA can significantly improve boot time on large 3683193267Sjkimmachines (with assistance from Len Brown.) 3684167802Sjkim 3685193267SjkimImplemented support for the device initialization case where the returned 3686193267Sjkim_STA flags indicate a device not-present but functioning. In this case, _INI 3687193267Sjkimis not run, but the device children are examined for presence, as per the 3688193267SjkimACPI specification. 3689167802Sjkim 3690193267SjkimImplemented an additional change to the IndexField support in order to 3691193267Sjkimconform to MS behavior. The value written to the Index Register is not 3692193267Sjkimsimply a byte offset, it is a byte offset in units of the access width of 3693193267Sjkimthe parent Index Field. (Fiodor Suietov) 3694167802Sjkim 3695193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateAddress. This 3696193267Sjkiminterface is called during the creation of all AML operation regions, and 3697193267Sjkimallows the host OS to exert control over what addresses it will allow the 3698193267SjkimAML code to access. Operation Regions whose addresses are disallowed will 3699193267Sjkimcause a runtime exception when they are actually accessed (will not affect 3700193267Sjkimor abort table loading.) See oswinxf or osunixxf for an example 3701167802Sjkimimplementation. 3702167802Sjkim 3703193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateInterface. This 3704193267Sjkiminterface allows the host OS to match the various "optional" 3705193267Sjkiminterface/behavior strings for the _OSI predefined control method as 3706193267Sjkimappropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf 3707193267Sjkimfor an example implementation. 3708167802Sjkim 3709193267SjkimRestructured and corrected various problems in the exception handling code 3710193267Sjkimpaths within DsCallControlMethod and DsTerminateControlMethod in dsmethod 3711193267Sjkim(with assistance from Takayoshi Kochi.) 3712167802Sjkim 3713193267SjkimModified the Linux source converter to ignore quoted string literals while 3714193267Sjkimconverting identifiers from mixed to lower case. This will correct problems 3715193267Sjkimwith the disassembler and other areas where such strings must not be 3716193267Sjkimmodified. 3717167802Sjkim 3718193267SjkimThe ACPI_FUNCTION_* macros no longer require quotes around the function 3719193267Sjkimname. This allows the Linux source converter to convert the names, now that 3720193267Sjkimthe converter ignores quoted strings. 3721167802Sjkim 3722193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3723193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3724193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3725193267Sjkima much larger code and data size. 3726193267Sjkim 3727167802Sjkim Previous Release: 3728167802Sjkim 3729167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3730167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3731167802Sjkim Current Release: 3732167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3733167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3734167802Sjkim 3735167802Sjkim 3736167802Sjkim2) iASL Compiler/Disassembler and Tools: 3737167802Sjkim 3738193267SjkimImplemented 3 new warnings for iASL, and implemented multiple warning levels 3739193267Sjkim(w2 flag). 3740167802Sjkim 3741193267Sjkim1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not 3742193267SjkimWAIT_FOREVER (0xFFFF) and the code does not examine the return value to 3743193267Sjkimcheck for the possible timeout, a warning is issued. 3744167802Sjkim 3745193267Sjkim2) Useless operators: If an ASL operator does not specify an optional target 3746193267Sjkimoperand and it also does not use the function return value from the 3747193267Sjkimoperator, a warning is issued since the operator effectively does nothing. 3748167802Sjkim 3749193267Sjkim3) Unreferenced objects: If a namespace object is created, but never 3750193267Sjkimreferenced, a warning is issued. This is a warning level 2 since there are 3751193267Sjkimcases where this is ok, such as when a secondary table is loaded that uses 3752193267Sjkimthe unreferenced objects. Even so, care is taken to only flag objects that 3753193267Sjkimdon't look like they will ever be used. For example, the reserved methods 3754193267Sjkim(starting with an underscore) are usually not referenced because it is 3755193267Sjkimexpected that the OS will invoke them. 3756167802Sjkim 3757167802Sjkim---------------------------------------- 3758167802Sjkim31 March 2006. Summary of changes for version 20060331: 3759167802Sjkim 3760167802Sjkim1) ACPI CA Core Subsystem: 3761167802Sjkim 3762193267SjkimImplemented header file support for the following additional ACPI tables: 3763193267SjkimASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, 3764193267Sjkimall current and known ACPI tables are now defined in the ACPICA headers and 3765193267Sjkimare available for use by device drivers and other software. 3766167802Sjkim 3767193267SjkimImplemented support to allow tables that contain ACPI names with invalid 3768193267Sjkimcharacters to be loaded. Previously, this would cause the table load to 3769193267Sjkimfail, but since there are several known cases of such tables on existing 3770193267Sjkimmachines, this change was made to enable ACPI support for them. Also, this 3771193267Sjkimmatches the behavior of the Microsoft ACPI implementation. 3772167802Sjkim 3773193267SjkimFixed a couple regressions introduced during the memory optimization in the 3774193267Sjkim20060317 release. The namespace node definition required additional 3775193267Sjkimreorganization and an internal datatype that had been changed to 8-bit was 3776193267Sjkimrestored to 32-bit. (Valery Podrezov) 3777167802Sjkim 3778193267SjkimFixed a problem where a null pointer passed to AcpiUtDeleteGenericState 3779193267Sjkimcould be passed through to AcpiOsReleaseObject which is unexpected. Such 3780193267Sjkimnull pointers are now trapped and ignored, matching the behavior of the 3781193267Sjkimprevious implementation before the deployment of AcpiOsReleaseObject. 3782167802Sjkim(Valery Podrezov, Fiodor Suietov) 3783167802Sjkim 3784193267SjkimFixed a memory mapping leak during the deletion of a SystemMemory operation 3785193267Sjkimregion where a cached memory mapping was not deleted. This became a 3786193267Sjkimnoticeable problem for operation regions that are defined within frequently 3787193267Sjkimused control methods. (Dana Meyers) 3788167802Sjkim 3789193267SjkimReorganized the ACPI table header files into two main files: one for the 3790193267SjkimACPI tables consumed by the ACPICA core, and another for the miscellaneous 3791193267SjkimACPI tables that are consumed by the drivers and other software. The various 3792193267SjkimFADT definitions were merged into one common section and three different 3793193267Sjkimtables (ACPI 1.0, 1.0+, and 2.0) 3794167802Sjkim 3795193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3796193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3797193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3798193267Sjkima much larger code and data size. 3799167802Sjkim 3800167802Sjkim Previous Release: 3801167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3802167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3803167802Sjkim Current Release: 3804167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3805167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3806167802Sjkim 3807167802Sjkim 3808167802Sjkim2) iASL Compiler/Disassembler and Tools: 3809167802Sjkim 3810193267SjkimDisassembler: Implemented support to decode and format all non-AML ACPI 3811193267Sjkimtables (tables other than DSDTs and SSDTs.) This includes the new tables 3812193267Sjkimadded to the ACPICA headers, therefore all current and known ACPI tables are 3813193267Sjkimsupported. 3814167802Sjkim 3815193267SjkimDisassembler: The change to allow ACPI names with invalid characters also 3816193267Sjkimenables the disassembly of such tables. Invalid characters within names are 3817193267Sjkimchanged to '*' to make the name printable; the iASL compiler will still 3818193267Sjkimgenerate an error for such names, however, since this is an invalid ACPI 3819193267Sjkimcharacter. 3820167802Sjkim 3821193267SjkimImplemented an option for AcpiXtract (-a) to extract all tables found in the 3822193267Sjkiminput file. The default invocation extracts only the DSDTs and SSDTs. 3823167802Sjkim 3824193267SjkimFixed a couple of gcc generation issues for iASL and AcpiExec and added a 3825193267Sjkimmakefile for the AcpiXtract utility. 3826167802Sjkim 3827167802Sjkim---------------------------------------- 3828167802Sjkim17 March 2006. Summary of changes for version 20060317: 3829167802Sjkim 3830167802Sjkim1) ACPI CA Core Subsystem: 3831167802Sjkim 3832193267SjkimImplemented the use of a cache object for all internal namespace nodes. 3833193267SjkimSince there are about 1000 static nodes in a typical system, this will 3834193267Sjkimdecrease memory use for cache implementations that minimize per-allocation 3835193267Sjkimoverhead (such as a slab allocator.) 3836167802Sjkim 3837193267SjkimRemoved the reference count mechanism for internal namespace nodes, since it 3838193267Sjkimwas deemed unnecessary. This reduces the size of each namespace node by 3839193267Sjkimabout 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, 3840193267Sjkimand 32 bytes for the 64-bit case. 3841167802Sjkim 3842193267SjkimOptimized several internal data structures to reduce object size on 64-bit 3843193267Sjkimplatforms by packing data within the 64-bit alignment. This includes the 3844193267Sjkimfrequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static 3845193267Sjkiminstances corresponding to the namespace objects. 3846167802Sjkim 3847193267SjkimAdded two new strings for the predefined _OSI method: "Windows 2001.1 SP1" 3848193267Sjkimand "Windows 2006". 3849167802Sjkim 3850193267SjkimSplit the allocation tracking mechanism out to a separate file, from 3851193267Sjkimutalloc.c to uttrack.c. This mechanism appears to be only useful for 3852193267Sjkimapplication-level code. Kernels may wish to not include uttrack.c in 3853193267Sjkimdistributions. 3854167802Sjkim 3855193267SjkimRemoved all remnants of the obsolete ACPI_REPORT_* macros and the associated 3856193267Sjkimcode. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING 3857193267Sjkimmacros.) 3858167802Sjkim 3859193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3860193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3861193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3862193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3863193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3864193267Sjkimcompiler options used during generation. 3865167802Sjkim 3866167802Sjkim Previous Release: 3867167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3868167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3869167802Sjkim Current Release: 3870167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3871167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3872167802Sjkim 3873167802Sjkim 3874167802Sjkim2) iASL Compiler/Disassembler and Tools: 3875167802Sjkim 3876193267SjkimImplemented an ANSI C version of the acpixtract utility. This version will 3877193267Sjkimautomatically extract the DSDT and all SSDTs from the input acpidump text 3878193267Sjkimfile and dump the binary output to separate files. It can also display a 3879193267Sjkimsummary of the input file including the headers for each table found and 3880193267Sjkimwill extract any single ACPI table, with any signature. (See 3881167802Sjkimsource/tools/acpixtract) 3882167802Sjkim 3883167802Sjkim---------------------------------------- 3884167802Sjkim10 March 2006. Summary of changes for version 20060310: 3885167802Sjkim 3886167802Sjkim1) ACPI CA Core Subsystem: 3887167802Sjkim 3888193267SjkimTagged all external interfaces to the subsystem with the new 3889193267SjkimACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist 3890193267Sjkimkernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL 3891193267Sjkimmacro. The default definition is NULL. 3892167802Sjkim 3893193267SjkimAdded the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId. 3894193267SjkimThis allows the host to define this as necessary to simplify kernel 3895193267Sjkimintegration. The default definition is ACPI_NATIVE_UINT. 3896167802Sjkim 3897193267SjkimFixed two interpreter problems related to error processing, the deletion of 3898193267Sjkimobjects, and placing invalid pointers onto the internal operator result 3899193267Sjkimstack. BZ 6028, 6151 (Valery Podrezov) 3900167802Sjkim 3901193267SjkimIncreased the reference count threshold where a warning is emitted for large 3902193267Sjkimreference counts in order to eliminate unnecessary warnings on systems with 3903193267Sjkimlarge namespaces (especially 64-bit.) Increased the value from 0x400 to 3904193267Sjkim0x800. 3905167802Sjkim 3906193267SjkimDue to universal disagreement as to the meaning of the 'c' in the calloc() 3907193267Sjkimfunction, the ACPI_MEM_CALLOCATE macro has been renamed to 3908193267SjkimACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'. 3909193267SjkimACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and 3910193267SjkimACPI_FREE. 3911167802Sjkim 3912193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3913193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3914193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3915193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3916193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3917193267Sjkimcompiler options used during generation. 3918167802Sjkim 3919167802Sjkim Previous Release: 3920167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3921167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3922167802Sjkim Current Release: 3923167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3924167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3925167802Sjkim 3926167802Sjkim 3927167802Sjkim2) iASL Compiler/Disassembler: 3928167802Sjkim 3929193267SjkimDisassembler: implemented support for symbolic resource descriptor 3930193267Sjkimreferences. If a CreateXxxxField operator references a fixed offset within a 3931193267Sjkimresource descriptor, a name is assigned to the descriptor and the offset is 3932193267Sjkimtranslated to the appropriate resource tag and pathname. The addition of 3933193267Sjkimthis support brings the disassembled code very close to the original ASL 3934193267Sjkimsource code and helps eliminate run-time errors when the disassembled code 3935193267Sjkimis modified (and recompiled) in such a way as to invalidate the original 3936193267Sjkimfixed offsets. 3937167802Sjkim 3938193267SjkimImplemented support for a Descriptor Name as the last parameter to the ASL 3939193267SjkimRegister() macro. This parameter was inadvertently left out of the ACPI 3940193267Sjkimspecification, and will be added for ACPI 3.0b. 3941167802Sjkim 3942193267SjkimFixed a problem where the use of the "_OSI" string (versus the full path 3943193267Sjkim"\_OSI") caused an internal compiler error. ("No back ptr to op") 3944167802Sjkim 3945193267SjkimFixed a problem with the error message that occurs when an invalid string is 3946193267Sjkimused for a _HID object (such as one with an embedded asterisk: "*PNP010A".) 3947193267SjkimThe correct message is now displayed. 3948167802Sjkim 3949167802Sjkim---------------------------------------- 3950167802Sjkim17 February 2006. Summary of changes for version 20060217: 3951167802Sjkim 3952167802Sjkim1) ACPI CA Core Subsystem: 3953167802Sjkim 3954193267SjkimImplemented a change to the IndexField support to match the behavior of the 3955193267SjkimMicrosoft AML interpreter. The value written to the Index register is now a 3956193267Sjkimbyte offset, no longer an index based upon the width of the Data register. 3957193267SjkimThis should fix IndexField problems seen on some machines where the Data 3958193267Sjkimregister is not exactly one byte wide. The ACPI specification will be 3959193267Sjkimclarified on this point. 3960167802Sjkim 3961193267SjkimFixed a problem where several resource descriptor types could overrun the 3962193267Sjkiminternal descriptor buffer due to size miscalculation: VendorShort, 3963193267SjkimVendorLong, and Interrupt. This was noticed on IA64 machines, but could 3964193267Sjkimaffect all platforms. 3965167802Sjkim 3966193267SjkimFixed a problem where individual resource descriptors were misaligned within 3967193267Sjkimthe internal buffer, causing alignment faults on IA64 platforms. 3968167802Sjkim 3969193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3970193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3971193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3972193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3973193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3974193267Sjkimcompiler options used during generation. 3975167802Sjkim 3976167802Sjkim Previous Release: 3977167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3978167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3979167802Sjkim Current Release: 3980167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3981167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3982167802Sjkim 3983167802Sjkim 3984167802Sjkim2) iASL Compiler/Disassembler: 3985167802Sjkim 3986193267SjkimImplemented support for new reserved names: _WDG and _WED are Microsoft 3987193267Sjkimextensions for Windows Instrumentation Management, _TDL is a new ACPI- 3988193267Sjkimdefined method (Throttling Depth Limit.) 3989167802Sjkim 3990193267SjkimFixed a problem where a zero-length VendorShort or VendorLong resource 3991193267Sjkimdescriptor was incorrectly emitted as a descriptor of length one. 3992167802Sjkim 3993167802Sjkim---------------------------------------- 3994167802Sjkim10 February 2006. Summary of changes for version 20060210: 3995167802Sjkim 3996167802Sjkim1) ACPI CA Core Subsystem: 3997167802Sjkim 3998193267SjkimRemoved a couple of extraneous ACPI_ERROR messages that appeared during 3999193267Sjkimnormal execution. These became apparent after the conversion from 4000193267SjkimACPI_DEBUG_PRINT. 4001167802Sjkim 4002193267SjkimFixed a problem where the CreateField operator could hang if the BitIndex or 4003193267SjkimNumBits parameter referred to a named object. (Valery Podrezov, BZ 5359) 4004167802Sjkim 4005193267SjkimFixed a problem where a DeRefOf operation on a buffer object incorrectly 4006193267Sjkimfailed with an exception. This also fixes a couple of related RefOf and 4007193267SjkimDeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387) 4008167802Sjkim 4009193267SjkimFixed a problem where the AE_BUFFER_LIMIT exception was returned instead of 4010193267SjkimAE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ 4011193267Sjkim5480) 4012167802Sjkim 4013193267SjkimImplemented a memory cleanup at the end of the execution of each iteration 4014193267Sjkimof an AML While() loop, preventing the accumulation of outstanding objects. 4015193267Sjkim(Valery Podrezov, BZ 5427) 4016167802Sjkim 4017193267SjkimEliminated a chunk of duplicate code in the object resolution code. (Valery 4018193267SjkimPodrezov, BZ 5336) 4019167802Sjkim 4020167802SjkimFixed several warnings during the 64-bit code generation. 4021167802Sjkim 4022193267SjkimThe AcpiSrc source code conversion tool now inserts one line of whitespace 4023193267Sjkimafter an if() statement that is followed immediately by a comment, improving 4024193267Sjkimreadability of the Linux code. 4025167802Sjkim 4026193267SjkimCode and Data Size: The current and previous library sizes for the core 4027193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4028193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4029193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4030193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4031193267Sjkimand data size. Note that these values will vary depending on the efficiency 4032193267Sjkimof the compiler and the compiler options used during generation. 4033167802Sjkim 4034167802Sjkim Previous Release: 4035167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 4036167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 4037167802Sjkim Current Release: 4038167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 4039167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 4040167802Sjkim 4041167802Sjkim 4042167802Sjkim2) iASL Compiler/Disassembler: 4043167802Sjkim 4044193267SjkimFixed a problem with the disassembly of a BankField operator with a complex 4045193267Sjkimexpression for the BankValue parameter. 4046167802Sjkim 4047167802Sjkim---------------------------------------- 4048167802Sjkim27 January 2006. Summary of changes for version 20060127: 4049167802Sjkim 4050167802Sjkim1) ACPI CA Core Subsystem: 4051167802Sjkim 4052193267SjkimImplemented support in the Resource Manager to allow unresolved namestring 4053193267Sjkimreferences within resource package objects for the _PRT method. This support 4054193267Sjkimis in addition to the previously implemented unresolved reference support 4055193267Sjkimwithin the AML parser. If the interpreter slack mode is enabled, these 4056193267Sjkimunresolved references will be passed through to the caller as a NULL package 4057167802Sjkimentry. 4058167802Sjkim 4059193267SjkimImplemented and deployed new macros and functions for error and warning 4060193267Sjkimmessages across the subsystem. These macros are simpler and generate less 4061193267Sjkimcode than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, 4062193267SjkimACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older 4063193267Sjkimmacros remain defined to allow ACPI drivers time to migrate to the new 4064193267Sjkimmacros. 4065167802Sjkim 4066193267SjkimImplemented the ACPI_CPU_FLAGS type to simplify host OS integration of the 4067193267SjkimAcquire/Release Lock OSL interfaces. 4068167802Sjkim 4069193267SjkimFixed a problem where Alias ASL operators are sometimes not correctly 4070193267Sjkimresolved, in both the interpreter and the iASL compiler. 4071167802Sjkim 4072193267SjkimFixed several problems with the implementation of the ConcatenateResTemplate 4073193267SjkimASL operator. As per the ACPI specification, zero length buffers are now 4074193267Sjkimtreated as a single EndTag. One-length buffers always cause a fatal 4075193267Sjkimexception. Non-zero length buffers that do not end with a full 2-byte EndTag 4076167802Sjkimcause a fatal exception. 4077167802Sjkim 4078193267SjkimFixed a possible structure overwrite in the AcpiGetObjectInfo external 4079193267Sjkiminterface. (With assistance from Thomas Renninger) 4080167802Sjkim 4081193267SjkimCode and Data Size: The current and previous library sizes for the core 4082193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4083193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4084193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4085193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4086193267Sjkimand data size. Note that these values will vary depending on the efficiency 4087193267Sjkimof the compiler and the compiler options used during generation. 4088167802Sjkim 4089167802Sjkim Previous Release: 4090167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 4091167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 4092167802Sjkim Current Release: 4093167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 4094167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 4095167802Sjkim 4096167802Sjkim 4097167802Sjkim2) iASL Compiler/Disassembler: 4098167802Sjkim 4099193267SjkimFixed an internal error that was generated for any forward references to ASL 4100193267SjkimAlias objects. 4101167802Sjkim 4102167802Sjkim---------------------------------------- 4103167802Sjkim13 January 2006. Summary of changes for version 20060113: 4104167802Sjkim 4105167802Sjkim1) ACPI CA Core Subsystem: 4106167802Sjkim 4107193267SjkimAdded 2006 copyright to all module headers and signons. This affects 4108193267Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and the 4109193267Sjkimutilities. 4110193267Sjkim 4111193267SjkimEnhanced the ACPICA error reporting in order to simplify user migration to 4112193267Sjkimthe non-debug version of ACPICA. Replaced all instances of the 4113193267SjkimACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug 4114193267Sjkimlevels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, 4115193267Sjkimrespectively. This preserves all error and warning messages in the non-debug 4116193267Sjkimversion of the ACPICA code (this has been referred to as the "debug lite" 4117193267Sjkimoption.) Over 200 cases were converted to create a total of over 380 4118193267Sjkimerror/warning messages across the ACPICA code. This increases the code and 4119193267Sjkimdata size of the default non-debug version of the code somewhat (about 13K), 4120193267Sjkimbut all error/warning reporting may be disabled if desired (and code 4121193267Sjkimeliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time 4122193267Sjkimconfiguration option. The size of the debug version of ACPICA remains about 4123193267Sjkimthe same. 4124167802Sjkim 4125193267SjkimFixed a memory leak within the AML Debugger "Set" command. One object was 4126193267Sjkimnot properly deleted for every successful invocation of the command. 4127167802Sjkim 4128193267SjkimCode and Data Size: The current and previous library sizes for the core 4129193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4130193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4131193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4132193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4133193267Sjkimand data size. Note that these values will vary depending on the efficiency 4134193267Sjkimof the compiler and the compiler options used during generation. 4135167802Sjkim 4136167802Sjkim Previous Release: 4137167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 4138167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 4139167802Sjkim Current Release: 4140167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 4141167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 4142167802Sjkim 4143167802Sjkim 4144167802Sjkim2) iASL Compiler/Disassembler: 4145167802Sjkim 4146193267SjkimThe compiler now officially supports the ACPI 3.0a specification that was 4147193267Sjkimreleased on December 30, 2005. (Specification is available at www.acpi.info) 4148167802Sjkim 4149167802Sjkim---------------------------------------- 4150167802Sjkim16 December 2005. Summary of changes for version 20051216: 4151167802Sjkim 4152167802Sjkim1) ACPI CA Core Subsystem: 4153167802Sjkim 4154193267SjkimImplemented optional support to allow unresolved names within ASL Package 4155193267Sjkimobjects. A null object is inserted in the package when a named reference 4156193267Sjkimcannot be located in the current namespace. Enabled via the interpreter 4157193267Sjkimslack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines 4158193267Sjkimthat contain such code. 4159167802Sjkim 4160193267SjkimImplemented an optimization to the initialization sequence that can improve 4161193267Sjkimboot time. During ACPI device initialization, the _STA method is now run if 4162193267Sjkimand only if the _INI method exists. The _STA method is used to determine if 4163193267Sjkimthe device is present; An _INI can only be run if _STA returns present, but 4164193267Sjkimit is a waste of time to run the _STA method if the _INI does not exist. 4165167802Sjkim(Prototype and assistance from Dong Wei) 4166167802Sjkim 4167193267SjkimImplemented use of the C99 uintptr_t for the pointer casting macros if it is 4168193267Sjkimavailable in the current compiler. Otherwise, the default (void *) cast is 4169193267Sjkimused as before. 4170167802Sjkim 4171193267SjkimFixed some possible memory leaks found within the execution path of the 4172193267SjkimBreak, Continue, If, and CreateField operators. (Valery Podrezov) 4173167802Sjkim 4174193267SjkimFixed a problem introduced in the 20051202 release where an exception is 4175193267Sjkimgenerated during method execution if a control method attempts to declare 4176193267Sjkimanother method. 4177167802Sjkim 4178193267SjkimMoved resource descriptor string constants that are used by both the AML 4179193267Sjkimdisassembler and AML debugger to the common utilities directory so that 4180193267Sjkimthese components are independent. 4181167802Sjkim 4182193267SjkimImplemented support in the AcpiExec utility (-e switch) to globally ignore 4183193267Sjkimexceptions during control method execution (method is not aborted.) 4184167802Sjkim 4185193267SjkimAdded the rsinfo.c source file to the AcpiExec makefile for Linux/Unix 4186193267Sjkimgeneration. 4187167802Sjkim 4188193267SjkimCode and Data Size: The current and previous library sizes for the core 4189193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4190193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4191193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4192193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4193193267Sjkimand data size. Note that these values will vary depending on the efficiency 4194193267Sjkimof the compiler and the compiler options used during generation. 4195167802Sjkim 4196167802Sjkim Previous Release: 4197167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4198167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 4199167802Sjkim Current Release: 4200167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 4201167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 4202167802Sjkim 4203167802Sjkim 4204167802Sjkim2) iASL Compiler/Disassembler: 4205167802Sjkim 4206193267SjkimFixed a problem where a CPU stack overflow fault could occur if a recursive 4207193267Sjkimmethod call was made from within a Return statement. 4208167802Sjkim 4209167802Sjkim---------------------------------------- 4210167802Sjkim02 December 2005. Summary of changes for version 20051202: 4211167802Sjkim 4212167802Sjkim1) ACPI CA Core Subsystem: 4213167802Sjkim 4214193267SjkimModified the parsing of control methods to no longer create namespace 4215193267Sjkimobjects during the first pass of the parse. Objects are now created only 4216193267Sjkimduring the execute phase, at the moment the namespace creation operator is 4217193267Sjkimencountered in the AML (Name, OperationRegion, CreateByteField, etc.) This 4218193267Sjkimshould eliminate ALREADY_EXISTS exceptions seen on some machines where 4219193267Sjkimreentrant control methods are protected by an AML mutex. The mutex will now 4220193267Sjkimcorrectly block multiple threads from attempting to create the same object 4221193267Sjkimmore than once. 4222167802Sjkim 4223193267SjkimIncreased the number of available Owner Ids for namespace object tracking 4224193267Sjkimfrom 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on 4225193267Sjkimsome machines with a large number of ACPI tables (either static or dynamic). 4226167802Sjkim 4227193267SjkimFixed a problem with the AcpiExec utility where a fault could occur when the 4228193267Sjkim-b switch (batch mode) is used. 4229167802Sjkim 4230193267SjkimEnhanced the namespace dump routine to output the owner ID for each 4231193267Sjkimnamespace object. 4232167802Sjkim 4233193267SjkimCode and Data Size: The current and previous library sizes for the core 4234193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4235193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4236193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4237193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4238193267Sjkimand data size. Note that these values will vary depending on the efficiency 4239193267Sjkimof the compiler and the compiler options used during generation. 4240167802Sjkim 4241167802Sjkim Previous Release: 4242167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4243167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4244167802Sjkim Current Release: 4245167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4246167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 4247167802Sjkim 4248167802Sjkim 4249167802Sjkim2) iASL Compiler/Disassembler: 4250167802Sjkim 4251193267SjkimFixed a parse error during compilation of certain Switch/Case constructs. To 4252193267Sjkimsimplify the parse, the grammar now allows for multiple Default statements 4253193267Sjkimand this error is now detected and flagged during the analysis phase. 4254167802Sjkim 4255193267SjkimDisassembler: The disassembly now includes the contents of the original 4256193267Sjkimtable header within a comment at the start of the file. This includes the 4257193267Sjkimname and version of the original ASL compiler. 4258167802Sjkim 4259167802Sjkim---------------------------------------- 4260167802Sjkim17 November 2005. Summary of changes for version 20051117: 4261167802Sjkim 4262167802Sjkim1) ACPI CA Core Subsystem: 4263167802Sjkim 4264193267SjkimFixed a problem in the AML parser where the method thread count could be 4265193267Sjkimdecremented below zero if any errors occurred during the method parse phase. 4266193267SjkimThis should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. 4267193267SjkimThis also fixed a related regression with the mechanism that detects and 4268193267Sjkimcorrects methods that cannot properly handle reentrancy (related to the 4269193267Sjkimdeployment of the new OwnerId mechanism.) 4270167802Sjkim 4271193267SjkimEliminated the pre-parsing of control methods (to detect errors) during 4272193267Sjkimtable load. Related to the problem above, this was causing unwind issues if 4273193267Sjkimany errors occurred during the parse, and it seemed to be overkill. A table 4274193267Sjkimload should not be aborted if there are problems with any single control 4275193267Sjkimmethod, thus rendering this feature rather pointless. 4276167802Sjkim 4277193267SjkimFixed a problem with the new table-driven resource manager where an internal 4278193267Sjkimbuffer overflow could occur for small resource templates. 4279167802Sjkim 4280193267SjkimImplemented a new external interface, AcpiGetVendorResource. This interface 4281193267Sjkimwill find and return a vendor-defined resource descriptor within a _CRS or 4282193267Sjkim_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas. 4283167802Sjkim 4284193267SjkimRemoved the length limit (200) on string objects as per the upcoming ACPI 4285193267Sjkim3.0A specification. This affects the following areas of the interpreter: 1) 4286193267Sjkimany implicit conversion of a Buffer to a String, 2) a String object result 4287193267Sjkimof the ASL Concatentate operator, 3) the String object result of the ASL 4288193267SjkimToString operator. 4289167802Sjkim 4290193267SjkimFixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER 4291193267Sjkimon a semaphore object would incorrectly timeout. This allows the 4292193267Sjkimmultithreading features of the AcpiExec utility to work properly under 4293193267SjkimWindows. 4294167802Sjkim 4295193267SjkimUpdated the Linux makefiles for the iASL compiler and AcpiExec to include 4296193267Sjkimthe recently added file named "utresrc.c". 4297167802Sjkim 4298193267SjkimCode and Data Size: The current and previous library sizes for the core 4299193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4300193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4301193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4302193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4303193267Sjkimand data size. Note that these values will vary depending on the efficiency 4304193267Sjkimof the compiler and the compiler options used during generation. 4305167802Sjkim 4306167802Sjkim Previous Release: 4307167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 4308167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4309167802Sjkim Current Release: 4310167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4311167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4312167802Sjkim 4313167802Sjkim 4314167802Sjkim2) iASL Compiler/Disassembler: 4315167802Sjkim 4316193267SjkimRemoved the limit (200) on string objects as per the upcoming ACPI 3.0A 4317193267Sjkimspecification. For the iASL compiler, this means that string literals within 4318193267Sjkimthe source ASL can be of any length. 4319167802Sjkim 4320193267SjkimEnhanced the listing output to dump the AML code for resource descriptors 4321193267Sjkimimmediately after the ASL code for each descriptor, instead of in a block at 4322193267Sjkimthe end of the entire resource template. 4323167802Sjkim 4324193267SjkimEnhanced the compiler debug output to dump the entire original parse tree 4325193267Sjkimconstructed during the parse phase, before any transforms are applied to the 4326193267Sjkimtree. The transformed tree is dumped also. 4327167802Sjkim 4328167802Sjkim---------------------------------------- 4329167802Sjkim02 November 2005. Summary of changes for version 20051102: 4330167802Sjkim 4331167802Sjkim1) ACPI CA Core Subsystem: 4332167802Sjkim 4333193267SjkimModified the subsystem initialization sequence to improve GPE support. The 4334193267SjkimGPE initialization has been split into two parts in order to defer execution 4335193267Sjkimof the _PRW methods (Power Resources for Wake) until after the hardware is 4336193267Sjkimfully initialized and the SCI handler is installed. This allows the _PRW 4337193267Sjkimmethods to access fields protected by the Global Lock. This will fix systems 4338193267Sjkimwhere a NO_GLOBAL_LOCK exception has been seen during initialization. 4339167802Sjkim 4340193267SjkimConverted the ACPI internal object disassemble and display code within the 4341193267SjkimAML debugger to fully table-driven operation, reducing code size and 4342193267Sjkimincreasing maintainability. 4343167802Sjkim 4344193267SjkimFixed a regression with the ConcatenateResTemplate() ASL operator introduced 4345193267Sjkimin the 20051021 release. 4346167802Sjkim 4347193267SjkimImplemented support for "local" internal ACPI object types within the 4348193267Sjkimdebugger "Object" command and the AcpiWalkNamespace external interfaces. 4349193267SjkimThese local types include RegionFields, BankFields, IndexFields, Alias, and 4350193267Sjkimreference objects. 4351167802Sjkim 4352193267SjkimMoved common AML resource handling code into a new file, "utresrc.c". This 4353193267Sjkimcode is shared by both the Resource Manager and the AML Debugger. 4354167802Sjkim 4355193267SjkimCode and Data Size: The current and previous library sizes for the core 4356193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4357193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4358193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4359193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4360193267Sjkimand data size. Note that these values will vary depending on the efficiency 4361193267Sjkimof the compiler and the compiler options used during generation. 4362167802Sjkim 4363167802Sjkim Previous Release: 4364167802Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 4365167802Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 4366167802Sjkim Current Release: 4367167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 4368167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4369167802Sjkim 4370167802Sjkim 4371167802Sjkim2) iASL Compiler/Disassembler: 4372167802Sjkim 4373193267SjkimFixed a problem with very large initializer lists (more than 4000 elements) 4374193267Sjkimfor both Buffer and Package objects where the parse stack could overflow. 4375167802Sjkim 4376193267SjkimEnhanced the pre-compile source code scan for non-ASCII characters to ignore 4377193267Sjkimcharacters within comment fields. The scan is now always performed and is no 4378193267Sjkimlonger optional, detecting invalid characters within a source file 4379193267Sjkimimmediately rather than during the parse phase or later. 4380167802Sjkim 4381193267SjkimEnhanced the ASL grammar definition to force early reductions on all list- 4382193267Sjkimstyle grammar elements so that the overall parse stack usage is greatly 4383193267Sjkimreduced. This should improve performance and reduce the possibility of parse 4384193267Sjkimstack overflow. 4385167802Sjkim 4386193267SjkimEliminated all reduce/reduce conflicts in the iASL parser generation. Also, 4387193267Sjkimwith the addition of a %expected statement, the compiler generates from 4388193267Sjkimsource with no warnings. 4389167802Sjkim 4390193267SjkimFixed a possible segment fault in the disassembler if the input filename 4391193267Sjkimdoes not contain a "dot" extension (Thomas Renninger). 4392167802Sjkim 4393167802Sjkim---------------------------------------- 4394151937Sjkim21 October 2005. Summary of changes for version 20051021: 4395151937Sjkim 4396151937Sjkim1) ACPI CA Core Subsystem: 4397151937Sjkim 4398193267SjkimImplemented support for the EM64T and other x86-64 processors. This 4399193267Sjkimessentially entails recognizing that these processors support non-aligned 4400193267Sjkimmemory transfers. Previously, all 64-bit processors were assumed to lack 4401193267Sjkimhardware support for non-aligned transfers. 4402151937Sjkim 4403193267SjkimCompleted conversion of the Resource Manager to nearly full table-driven 4404193267Sjkimoperation. Specifically, the resource conversion code (convert AML to 4405193267Sjkiminternal format and the reverse) and the debug code to dump internal 4406193267Sjkimresource descriptors are fully table-driven, reducing code and data size and 4407193267Sjkimimproving maintainability. 4408151937Sjkim 4409193267SjkimThe OSL interfaces for Acquire and Release Lock now use a 64-bit flag word 4410193267Sjkimon 64-bit processors instead of a fixed 32-bit word. (With assistance from 4411193267SjkimAlexey Starikovskiy) 4412151937Sjkim 4413193267SjkimImplemented support within the resource conversion code for the Type- 4414193267SjkimSpecific byte within the various ACPI 3.0 *WordSpace macros. 4415151937Sjkim 4416193267SjkimFixed some issues within the resource conversion code for the type-specific 4417193267Sjkimflags for both Memory and I/O address resource descriptors. For Memory, 4418193267Sjkimimplemented support for the MTP and TTP flags. For I/O, split the TRS and 4419193267SjkimTTP flags into two separate fields. 4420151937Sjkim 4421193267SjkimCode and Data Size: The current and previous library sizes for the core 4422193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4423193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4424193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4425193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4426193267Sjkimand data size. Note that these values will vary depending on the efficiency 4427193267Sjkimof the compiler and the compiler options used during generation. 4428151937Sjkim 4429151937Sjkim Previous Release: 4430151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 4431151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 4432151937Sjkim Current Release: 4433151937Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 4434151937Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 4435151937Sjkim 4436151937Sjkim 4437167802Sjkim 4438151937Sjkim2) iASL Compiler/Disassembler: 4439151937Sjkim 4440193267SjkimRelaxed a compiler restriction that disallowed a ResourceIndex byte if the 4441193267Sjkimcorresponding ResourceSource string was not also present in a resource 4442193267Sjkimdescriptor declaration. This restriction caused problems with existing 4443193267SjkimAML/ASL code that includes the Index byte without the string. When such AML 4444193267Sjkimwas disassembled, it could not be compiled without modification. Further, 4445193267Sjkimthe modified code created a resource template with a different size than the 4446193267Sjkimoriginal, breaking code that used fixed offsets into the resource template 4447193267Sjkimbuffer. 4448151937Sjkim 4449193267SjkimRemoved a recent feature of the disassembler to ignore a lone ResourceIndex 4450193267Sjkimbyte. This byte is now emitted if present so that the exact AML can be 4451193267Sjkimreproduced when the disassembled code is recompiled. 4452151937Sjkim 4453193267SjkimImproved comments and text alignment for the resource descriptor code 4454193267Sjkimemitted by the disassembler. 4455151937Sjkim 4456193267SjkimImplemented disassembler support for the ACPI 3.0 AccessSize field within a 4457193267SjkimRegister() resource descriptor. 4458151937Sjkim 4459151937Sjkim---------------------------------------- 4460151937Sjkim30 September 2005. Summary of changes for version 20050930: 4461151937Sjkim 4462151937Sjkim1) ACPI CA Core Subsystem: 4463151937Sjkim 4464193267SjkimCompleted a major overhaul of the Resource Manager code - specifically, 4465193267Sjkimoptimizations in the area of the AML/internal resource conversion code. The 4466193267Sjkimcode has been optimized to simplify and eliminate duplicated code, CPU stack 4467193267Sjkimuse has been decreased by optimizing function parameters and local 4468193267Sjkimvariables, and naming conventions across the manager have been standardized 4469193267Sjkimfor clarity and ease of maintenance (this includes function, parameter, 4470193267Sjkimvariable, and struct/typedef names.) The update may force changes in some 4471193267Sjkimdriver code, depending on how resources are handled by the host OS. 4472151937Sjkim 4473193267SjkimAll Resource Manager dispatch and information tables have been moved to a 4474193267Sjkimsingle location for clarity and ease of maintenance. One new file was 4475193267Sjkimcreated, named "rsinfo.c". 4476151937Sjkim 4477193267SjkimThe ACPI return macros (return_ACPI_STATUS, etc.) have been modified to 4478193267Sjkimguarantee that the argument is not evaluated twice, making them less prone 4479193267Sjkimto macro side-effects. However, since there exists the possibility of 4480193267Sjkimadditional stack use if a particular compiler cannot optimize them (such as 4481193267Sjkimin the debug generation case), the original macros are optionally available. 4482193267SjkimNote that some invocations of the return_VALUE macro may now cause size 4483193267Sjkimmismatch warnings; the return_UINT8 and return_UINT32 macros are provided to 4484193267Sjkimeliminate these. (From Randy Dunlap) 4485151937Sjkim 4486193267SjkimImplemented a new mechanism to enable debug tracing for individual control 4487193267Sjkimmethods. A new external interface, AcpiDebugTrace, is provided to enable 4488193267Sjkimthis mechanism. The intent is to allow the host OS to easily enable and 4489193267Sjkimdisable tracing for problematic control methods. This interface can be 4490193267Sjkimeasily exposed to a user or debugger interface if desired. See the file 4491151937Sjkimpsxface.c for details. 4492151937Sjkim 4493193267SjkimAcpiUtCallocate will now return a valid pointer if a length of zero is 4494193267Sjkimspecified - a length of one is used and a warning is issued. This matches 4495193267Sjkimthe behavior of AcpiUtAllocate. 4496151937Sjkim 4497193267SjkimCode and Data Size: The current and previous library sizes for the core 4498193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4499193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4500193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4501193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4502193267Sjkimand data size. Note that these values will vary depending on the efficiency 4503193267Sjkimof the compiler and the compiler options used during generation. 4504151937Sjkim 4505151937Sjkim Previous Release: 4506151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4507151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4508151937Sjkim Current Release: 4509151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 4510151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 4511151937Sjkim 4512151937Sjkim 4513151937Sjkim2) iASL Compiler/Disassembler: 4514151937Sjkim 4515193267SjkimA remark is issued if the effective compile-time length of a package or 4516193267Sjkimbuffer is zero. Previously, this was a warning. 4517151937Sjkim 4518151937Sjkim---------------------------------------- 4519151937Sjkim16 September 2005. Summary of changes for version 20050916: 4520151937Sjkim 4521151937Sjkim1) ACPI CA Core Subsystem: 4522151937Sjkim 4523193267SjkimFixed a problem within the Resource Manager where support for the Generic 4524193267SjkimRegister descriptor was not fully implemented. This descriptor is now fully 4525193267Sjkimrecognized, parsed, disassembled, and displayed. 4526151937Sjkim 4527193267SjkimCompletely restructured the Resource Manager code to utilize table-driven 4528193267Sjkimdispatch and lookup, eliminating many of the large switch() statements. This 4529193267Sjkimreduces overall subsystem code size and code complexity. Affects the 4530193267Sjkimresource parsing and construction, disassembly, and debug dump output. 4531151937Sjkim 4532193267SjkimCleaned up and restructured the debug dump output for all resource 4533193267Sjkimdescriptors. Improved readability of the output and reduced code size. 4534151937Sjkim 4535193267SjkimFixed a problem where changes to internal data structures caused the 4536193267Sjkimoptional ACPI_MUTEX_DEBUG code to fail compilation if specified. 4537151937Sjkim 4538193267SjkimCode and Data Size: The current and previous library sizes for the core 4539193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4540193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4541193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4542193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4543193267Sjkimand data size. Note that these values will vary depending on the efficiency 4544193267Sjkimof the compiler and the compiler options used during generation. 4545151937Sjkim 4546151937Sjkim Previous Release: 4547151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4548151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4549151937Sjkim Current Release: 4550151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4551151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4552151937Sjkim 4553151937Sjkim 4554151937Sjkim2) iASL Compiler/Disassembler: 4555151937Sjkim 4556193267SjkimUpdated the disassembler to automatically insert an EndDependentFn() macro 4557193267Sjkiminto the ASL stream if this macro is missing in the original AML code, 4558193267Sjkimsimplifying compilation of the resulting ASL module. 4559151937Sjkim 4560193267SjkimFixed a problem in the disassembler where a disassembled ResourceSource 4561193267Sjkimstring (within a large resource descriptor) was not surrounded by quotes and 4562193267Sjkimnot followed by a comma, causing errors when the resulting ASL module was 4563193267Sjkimcompiled. Also, escape sequences within a ResourceSource string are now 4564193267Sjkimhandled correctly (especially "\\") 4565151937Sjkim 4566151937Sjkim---------------------------------------- 4567151937Sjkim02 September 2005. Summary of changes for version 20050902: 4568151937Sjkim 4569151937Sjkim1) ACPI CA Core Subsystem: 4570151937Sjkim 4571193267SjkimFixed a problem with the internal Owner ID allocation and deallocation 4572193267Sjkimmechanisms for control method execution and recursive method invocation. 4573193267SjkimThis should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" 4574193267Sjkimmessages seen on some systems. Recursive method invocation depth is 4575193267Sjkimcurrently limited to 255. (Alexey Starikovskiy) 4576151937Sjkim 4577193267SjkimCompletely eliminated all vestiges of support for the "module-level 4578193267Sjkimexecutable code" until this support is fully implemented and debugged. This 4579193267Sjkimshould eliminate the NO_RETURN_VALUE exceptions seen during table load on 4580193267Sjkimsome systems that invoke this support. 4581151937Sjkim 4582193267SjkimFixed a problem within the resource manager code where the transaction flags 4583193267Sjkimfor a 64-bit address descriptor were handled incorrectly in the type- 4584193267Sjkimspecific flag byte. 4585151937Sjkim 4586193267SjkimConsolidated duplicate code within the address descriptor resource manager 4587193267Sjkimcode, reducing overall subsystem code size. 4588151937Sjkim 4589193267SjkimFixed a fault when using the AML debugger "disassemble" command to 4590193267Sjkimdisassemble individual control methods. 4591151937Sjkim 4592193267SjkimRemoved references to the "release_current" directory within the Unix 4593193267Sjkimrelease package. 4594151937Sjkim 4595193267SjkimCode and Data Size: The current and previous core subsystem library sizes 4596193267Sjkimare shown below. These are the code and data sizes for the acpica.lib 4597193267Sjkimproduced by the Microsoft Visual C++ 6.0 compiler. These values do not 4598193267Sjkiminclude any ACPI driver or OSPM code. The debug version of the code includes 4599193267Sjkimthe debug output trace mechanism and has a much larger code and data size. 4600193267SjkimNote that these values will vary depending on the efficiency of the compiler 4601193267Sjkimand the compiler options used during generation. 4602151937Sjkim 4603151937Sjkim Previous Release: 4604151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4605151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4606151937Sjkim Current Release: 4607151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4608151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4609151937Sjkim 4610151937Sjkim 4611151937Sjkim2) iASL Compiler/Disassembler: 4612151937Sjkim 4613193267SjkimImplemented an error check for illegal duplicate values in the interrupt and 4614193267Sjkimdma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and 4615193267SjkimInterrupt(). 4616151937Sjkim 4617193267SjkimImplemented error checking for the Irq() and IrqNoFlags() macros to detect 4618193267Sjkimtoo many values in the interrupt list (16 max) and invalid values in the 4619193267Sjkimlist (range 0 - 15) 4620151937Sjkim 4621193267SjkimThe maximum length string literal within an ASL file is now restricted to 4622193267Sjkim200 characters as per the ACPI specification. 4623151937Sjkim 4624193267SjkimFixed a fault when using the -ln option (generate namespace listing). 4625151937Sjkim 4626193267SjkimImplemented an error check to determine if a DescriptorName within a 4627193267Sjkimresource descriptor has already been used within the current scope. 4628151937Sjkim 4629151937Sjkim---------------------------------------- 4630151937Sjkim15 August 2005. Summary of changes for version 20050815: 4631193267Sjkim 4632151937Sjkim1) ACPI CA Core Subsystem: 4633193267Sjkim 4634193267SjkimImplemented a full bytewise compare to determine if a table load request is 4635193267Sjkimattempting to load a duplicate table. The compare is performed if the table 4636193267Sjkimsignatures and table lengths match. This will allow different tables with 4637193267Sjkimthe same OEM Table ID and revision to be loaded - probably against the ACPI 4638193267Sjkimspecification, but discovered in the field nonetheless. 4639193267Sjkim 4640193267SjkimAdded the changes.txt logfile to each of the zipped release packages. 4641193267Sjkim 4642193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4643193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4644193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4645193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4646193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4647193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4648193267Sjkimthe compiler options used during generation. 4649193267Sjkim 4650151937Sjkim Previous Release: 4651151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4652151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4653151937Sjkim Current Release: 4654151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4655151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4656193267Sjkim 4657193267Sjkim 4658151937Sjkim2) iASL Compiler/Disassembler: 4659193267Sjkim 4660193267SjkimFixed a problem where incorrect AML code could be generated for Package 4661193267Sjkimobjects if optimization is disabled (via the -oa switch). 4662193267Sjkim 4663193267SjkimFixed a problem with where incorrect AML code is generated for variable- 4664193267Sjkimlength packages when the package length is not specified and the number of 4665193267Sjkiminitializer values is greater than 255. 4666193267Sjkim 4667151937Sjkim 4668151937Sjkim---------------------------------------- 4669151937Sjkim29 July 2005. Summary of changes for version 20050729: 4670151937Sjkim 4671151937Sjkim1) ACPI CA Core Subsystem: 4672151937Sjkim 4673193267SjkimImplemented support to ignore an attempt to install/load a particular ACPI 4674193267Sjkimtable more than once. Apparently there exists BIOS code that repeatedly 4675193267Sjkimattempts to load the same SSDT upon certain events. With assistance from 4676193267SjkimVenkatesh Pallipadi. 4677151937Sjkim 4678193267SjkimRestructured the main interface to the AML parser in order to correctly 4679193267Sjkimhandle all exceptional conditions. This will prevent leakage of the OwnerId 4680193267Sjkimresource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some 4681193267Sjkimmachines. With assistance from Alexey Starikovskiy. 4682151937Sjkim 4683193267SjkimSupport for "module level code" has been disabled in this version due to a 4684193267Sjkimnumber of issues that have appeared on various machines. The support can be 4685193267Sjkimenabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem 4686193267Sjkimcompilation. When the issues are fully resolved, the code will be enabled by 4687151937Sjkimdefault again. 4688151937Sjkim 4689193267SjkimModified the internal functions for debug print support to define the 4690193267SjkimFunctionName parameter as a (const char *) for compatibility with compiler 4691193267Sjkimbuilt-in macros such as __FUNCTION__, etc. 4692151937Sjkim 4693151937SjkimLinted the entire ACPICA source tree for both 32-bit and 64-bit. 4694151937Sjkim 4695193267SjkimImplemented support to display an object count summary for the AML Debugger 4696193267Sjkimcommands Object and Methods. 4697151937Sjkim 4698193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4699193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4700193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4701193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4702193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4703193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4704193267Sjkimthe compiler options used during generation. 4705151937Sjkim 4706151937Sjkim Previous Release: 4707151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 4708151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4709151937Sjkim Current Release: 4710151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4711151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4712151937Sjkim 4713151937Sjkim 4714151937Sjkim2) iASL Compiler/Disassembler: 4715151937Sjkim 4716193267SjkimFixed a regression that appeared in the 20050708 version of the compiler 4717193267Sjkimwhere an error message was inadvertently emitted for invocations of the _OSI 4718193267Sjkimreserved control method. 4719151937Sjkim 4720151937Sjkim---------------------------------------- 4721151937Sjkim08 July 2005. Summary of changes for version 20050708: 4722151937Sjkim 4723151937Sjkim1) ACPI CA Core Subsystem: 4724151937Sjkim 4725193267SjkimThe use of the CPU stack in the debug version of the subsystem has been 4726193267Sjkimconsiderably reduced. Previously, a debug structure was declared in every 4727193267Sjkimfunction that used the debug macros. This structure has been removed in 4728193267Sjkimfavor of declaring the individual elements as parameters to the debug 4729193267Sjkimfunctions. This reduces the cumulative stack use during nested execution of 4730193267SjkimACPI function calls at the cost of a small increase in the code size of the 4731193267Sjkimdebug version of the subsystem. With assistance from Alexey Starikovskiy and 4732193267SjkimLen Brown. 4733151937Sjkim 4734193267SjkimAdded the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent 4735193267Sjkimheaders to define a macro that will return the current function name at 4736193267Sjkimruntime (such as __FUNCTION__ or _func_, etc.) The function name is used by 4737193267Sjkimthe debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the 4738193267Sjkimcompiler-dependent header, the function name is saved on the CPU stack (one 4739193267Sjkimpointer per function.) This mechanism is used because apparently there 4740193267Sjkimexists no standard ANSI-C defined macro that that returns the function name. 4741151937Sjkim 4742193267SjkimRedesigned and reimplemented the "Owner ID" mechanism used to track 4743193267Sjkimnamespace objects created/deleted by ACPI tables and control method 4744193267Sjkimexecution. A bitmap is now used to allocate and free the IDs, thus solving 4745193267Sjkimthe wraparound problem present in the previous implementation. The size of 4746193267Sjkimthe namespace node descriptor was reduced by 2 bytes as a result (Alexey 4747151937SjkimStarikovskiy). 4748151937Sjkim 4749193267SjkimRemoved the UINT32_BIT and UINT16_BIT types that were used for the bitfield 4750193267Sjkimflag definitions within the headers for the predefined ACPI tables. These 4751193267Sjkimhave been replaced by UINT8_BIT in order to increase the code portability of 4752193267Sjkimthe subsystem. If the use of UINT8 remains a problem, we may be forced to 4753193267Sjkimeliminate bitfields entirely because of a lack of portability. 4754151937Sjkim 4755193267SjkimEnhanced the performance of the AcpiUtUpdateObjectReference procedure. This 4756193267Sjkimis a frequently used function and this improvement increases the performance 4757193267Sjkimof the entire subsystem (Alexey Starikovskiy). 4758151937Sjkim 4759193267SjkimFixed several possible memory leaks and the inverse - premature object 4760193267Sjkimdeletion (Alexey Starikovskiy). 4761151937Sjkim 4762193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4763193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4764193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4765193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4766193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4767193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4768193267Sjkimthe compiler options used during generation. 4769151937Sjkim 4770151937Sjkim Previous Release: 4771151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4772151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4773151937Sjkim Current Release: 4774151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 4775151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4776151937Sjkim 4777151937Sjkim---------------------------------------- 4778151937Sjkim24 June 2005. Summary of changes for version 20050624: 4779151937Sjkim 4780151937Sjkim1) ACPI CA Core Subsystem: 4781151937Sjkim 4782193267SjkimModified the new OSL cache interfaces to use ACPI_CACHE_T as the type for 4783193267Sjkimthe host-defined cache object. This allows the OSL implementation to define 4784193267Sjkimand type this object in any manner desired, simplifying the OSL 4785193267Sjkimimplementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for 4786193267SjkimLinux, and should be defined in the OS-specific header file for other 4787193267Sjkimoperating systems as required. 4788151937Sjkim 4789193267SjkimChanged the interface to AcpiOsAcquireObject to directly return the 4790193267Sjkimrequested object as the function return (instead of ACPI_STATUS.) This 4791193267Sjkimchange was made for performance reasons, since this is the purpose of the 4792193267Sjkiminterface in the first place. AcpiOsAcquireObject is now similar to the 4793193267SjkimAcpiOsAllocate interface. 4794151937Sjkim 4795193267SjkimImplemented a new AML debugger command named Businfo. This command displays 4796193267Sjkiminformation about all devices that have an associate _PRT object. The _ADR, 4797193267Sjkim_HID, _UID, and _CID are displayed for these devices. 4798151937Sjkim 4799193267SjkimModified the initialization sequence in AcpiInitializeSubsystem to call the 4800193267SjkimOSL interface AcpiOslInitialize first, before any local initialization. This 4801193267Sjkimchange was required because the global initialization now calls OSL 4802193267Sjkiminterfaces. 4803151937Sjkim 4804193267SjkimEnhanced the Dump command to display the entire contents of Package objects 4805193267Sjkim(including all sub-objects and their values.) 4806151937Sjkim 4807193267SjkimRestructured the code base to split some files because of size and/or 4808193267Sjkimbecause the code logically belonged in a separate file. New files are listed 4809193267Sjkimbelow. All makefiles and project files included in the ACPI CA release have 4810193267Sjkimbeen updated. 4811151937Sjkim utilities/utcache.c /* Local cache interfaces */ 4812151937Sjkim utilities/utmutex.c /* Local mutex support */ 4813151937Sjkim utilities/utstate.c /* State object support */ 4814151937Sjkim interpreter/parser/psloop.c /* Main AML parse loop */ 4815151937Sjkim 4816193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4817193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4818193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4819193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4820193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4821193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4822193267Sjkimthe compiler options used during generation. 4823151937Sjkim 4824151937Sjkim Previous Release: 4825151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4826151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4827151937Sjkim Current Release: 4828151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4829151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4830151937Sjkim 4831151937Sjkim 4832151937Sjkim2) iASL Compiler/Disassembler: 4833151937Sjkim 4834193267SjkimFixed a regression introduced in version 20050513 where the use of a Package 4835193267Sjkimobject within a Case() statement caused a compile time exception. The 4836193267Sjkimoriginal behavior has been restored (a Match() operator is emitted.) 4837151937Sjkim 4838151937Sjkim---------------------------------------- 4839151937Sjkim17 June 2005. Summary of changes for version 20050617: 4840151937Sjkim 4841151937Sjkim1) ACPI CA Core Subsystem: 4842151937Sjkim 4843193267SjkimMoved the object cache operations into the OS interface layer (OSL) to allow 4844193267Sjkimthe host OS to handle these operations if desired (for example, the Linux 4845193267SjkimOSL will invoke the slab allocator). This support is optional; the compile 4846193267Sjkimtime define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache 4847193267Sjkimcode in the ACPI CA core. The new OSL interfaces are shown below. See 4848193267Sjkimutalloc.c for an example implementation, and acpiosxf.h for the exact 4849193267Sjkiminterface definitions. With assistance from Alexey Starikovskiy. 4850151937Sjkim AcpiOsCreateCache 4851151937Sjkim AcpiOsDeleteCache 4852151937Sjkim AcpiOsPurgeCache 4853151937Sjkim AcpiOsAcquireObject 4854151937Sjkim AcpiOsReleaseObject 4855151937Sjkim 4856193267SjkimModified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return 4857193267Sjkimand restore a flags parameter. This fits better with many OS lock models. 4858193267SjkimNote: the current execution state (interrupt handler or not) is no longer 4859193267Sjkimpassed to these interfaces. If necessary, the OSL must determine this state 4860193267Sjkimby itself, a simple and fast operation. With assistance from Alexey 4861151937SjkimStarikovskiy. 4862151937Sjkim 4863193267SjkimFixed a problem in the ACPI table handling where a valid XSDT was assumed 4864193267Sjkimpresent if the revision of the RSDP was 2 or greater. According to the ACPI 4865193267Sjkimspecification, the XSDT is optional in all cases, and the table manager 4866193267Sjkimtherefore now checks for both an RSDP >=2 and a valid XSDT pointer. 4867193267SjkimOtherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain 4868193267Sjkimonly the RSDT. 4869151937Sjkim 4870193267SjkimFixed an interpreter problem with the Mid() operator in the case of an input 4871193267Sjkimstring where the resulting output string is of zero length. It now correctly 4872193267Sjkimreturns a valid, null terminated string object instead of a string object 4873193267Sjkimwith a null pointer. 4874151937Sjkim 4875193267SjkimFixed a problem with the control method argument handling to allow a store 4876193267Sjkimto an Arg object that already contains an object of type Device. The Device 4877193267Sjkimobject is now correctly overwritten. Previously, an error was returned. 4878151937Sjkim 4879167802Sjkim 4880193267SjkimEnhanced the debugger Find command to emit object values in addition to the 4881193267Sjkimfound object pathnames. The output format is the same as the dump namespace 4882193267Sjkimcommand. 4883151937Sjkim 4884193267SjkimEnhanced the debugger Set command. It now has the ability to set the value 4885193267Sjkimof any Named integer object in the namespace (Previously, only method locals 4886193267Sjkimand args could be set.) 4887151937Sjkim 4888193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4889193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4890193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4891193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4892193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4893193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4894193267Sjkimthe compiler options used during generation. 4895151937Sjkim 4896151937Sjkim Previous Release: 4897151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 4898151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4899151937Sjkim Current Release: 4900151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4901151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4902151937Sjkim 4903151937Sjkim 4904151937Sjkim2) iASL Compiler/Disassembler: 4905151937Sjkim 4906193267SjkimFixed a regression in the disassembler where if/else/while constructs were 4907193267Sjkimoutput incorrectly. This problem was introduced in the previous release 4908193267Sjkim(20050526). This problem also affected the single-step disassembly in the 4909193267Sjkimdebugger. 4910151937Sjkim 4911193267SjkimFixed a problem where compiling the reserved _OSI method would randomly (but 4912193267Sjkimrarely) produce compile errors. 4913151937Sjkim 4914193267SjkimEnhanced the disassembler to emit compilable code in the face of incorrect 4915193267SjkimAML resource descriptors. If the optional ResourceSourceIndex is present, 4916193267Sjkimbut the ResourceSource is not, do not emit the ResourceSourceIndex in the 4917193267Sjkimdisassembly. Otherwise, the resulting code cannot be compiled without 4918193267Sjkimerrors. 4919151937Sjkim 4920151937Sjkim---------------------------------------- 4921151937Sjkim26 May 2005. Summary of changes for version 20050526: 4922151937Sjkim 4923151937Sjkim1) ACPI CA Core Subsystem: 4924151937Sjkim 4925193267SjkimImplemented support to execute Type 1 and Type 2 AML opcodes appearing at 4926193267Sjkimthe module level (not within a control method.) These opcodes are executed 4927193267Sjkimexactly once at the time the table is loaded. This type of code was legal up 4928193267Sjkimuntil the release of ACPI 2.0B (2002) and is now supported within ACPI CA in 4929193267Sjkimorder to provide backwards compatibility with earlier BIOS implementations. 4930193267SjkimThis eliminates the "Encountered executable code at module level" warning 4931193267Sjkimthat was previously generated upon detection of such code. 4932151937Sjkim 4933193267SjkimFixed a problem in the interpreter where an AE_NOT_FOUND exception could 4934193267Sjkiminadvertently be generated during the lookup of namespace objects in the 4935193267Sjkimsecond pass parse of ACPI tables and control methods. It appears that this 4936193267Sjkimproblem could occur during the resolution of forward references to namespace 4937193267Sjkimobjects. 4938151937Sjkim 4939193267SjkimAdded the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function, 4940193267Sjkimcorresponding to the same #ifdef in the AcpiUtAcquireMutex function. This 4941193267Sjkimallows the deadlock detection debug code to be compiled out in the normal 4942193267Sjkimcase, improving mutex performance (and overall subsystem performance) 4943193267Sjkimconsiderably. 4944151937Sjkim 4945193267SjkimImplemented a handful of miscellaneous fixes for possible memory leaks on 4946193267Sjkimerror conditions and error handling control paths. These fixes were 4947193267Sjkimsuggested by FreeBSD and the Coverity Prevent source code analysis tool. 4948151937Sjkim 4949193267SjkimAdded a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c) 4950193267Sjkimto prevent a fault in this error case. 4951151937Sjkim 4952193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4953193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4954193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4955193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4956193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4957193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4958193267Sjkimthe compiler options used during generation. 4959151937Sjkim 4960151937Sjkim Previous Release: 4961151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4962151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4963151937Sjkim Current Release: 4964151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 4965151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4966151937Sjkim 4967151937Sjkim 4968151937Sjkim2) iASL Compiler/Disassembler: 4969151937Sjkim 4970193267SjkimImplemented support to allow Type 1 and Type 2 ASL operators to appear at 4971193267Sjkimthe module level (not within a control method.) These operators will be 4972193267Sjkimexecuted once at the time the table is loaded. This type of code was legal 4973193267Sjkimup until the release of ACPI 2.0B (2002) and is now supported by the iASL 4974193267Sjkimcompiler in order to provide backwards compatibility with earlier BIOS ASL 4975193267Sjkimcode. 4976151937Sjkim 4977193267SjkimThe ACPI integer width (specified via the table revision ID or the -r 4978193267Sjkimoverride, 32 or 64 bits) is now used internally during compile-time constant 4979193267Sjkimfolding to ensure that constants are truncated to 32 bits if necessary. 4980193267SjkimPreviously, the revision ID value was only emitted in the AML table header. 4981151937Sjkim 4982193267SjkimAn error message is now generated for the Mutex and Method operators if the 4983193267SjkimSyncLevel parameter is outside the legal range of 0 through 15. 4984151937Sjkim 4985193267SjkimFixed a problem with the Method operator ParameterTypes list handling (ACPI 4986193267Sjkim3.0). Previously, more than 2 types or 2 arguments generated a syntax error. 4987193267SjkimThe actual underlying implementation of method argument typechecking is 4988193267Sjkimstill under development, however. 4989151937Sjkim 4990151937Sjkim---------------------------------------- 4991151937Sjkim13 May 2005. Summary of changes for version 20050513: 4992151937Sjkim 4993151937Sjkim1) ACPI CA Core Subsystem: 4994151937Sjkim 4995193267SjkimImplemented support for PCI Express root bridges -- added support for device 4996193267SjkimPNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup. 4997151937Sjkim 4998193267SjkimThe interpreter now automatically truncates incoming 64-bit constants to 32 4999193267Sjkimbits if currently executing out of a 32-bit ACPI table (Revision < 2). This 5000193267Sjkimalso affects the iASL compiler constant folding. (Note: as per below, the 5001193267SjkimiASL compiler no longer allows 64-bit constants within 32-bit tables.) 5002151937Sjkim 5003193267SjkimFixed a problem where string and buffer objects with "static" pointers 5004193267Sjkim(pointers to initialization data within an ACPI table) were not handled 5005193267Sjkimconsistently. The internal object copy operation now always copies the data 5006193267Sjkimto a newly allocated buffer, regardless of whether the source object is 5007193267Sjkimstatic or not. 5008151937Sjkim 5009193267SjkimFixed a problem with the FromBCD operator where an implicit result 5010193267Sjkimconversion was improperly performed while storing the result to the target 5011193267Sjkimoperand. Since this is an "explicit conversion" operator, the implicit 5012193267Sjkimconversion should never be performed on the output. 5013151937Sjkim 5014193267SjkimFixed a problem with the CopyObject operator where a copy to an existing 5015193267Sjkimnamed object did not always completely overwrite the existing object stored 5016193267Sjkimat name. Specifically, a buffer-to-buffer copy did not delete the existing 5017193267Sjkimbuffer. 5018151937Sjkim 5019193267SjkimReplaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and 5020193267Sjkimstructs for consistency. 5021151937Sjkim 5022193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5023193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5024193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5025193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5026193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5027193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5028193267Sjkimthe compiler options used during generation. 5029151937Sjkim 5030151937Sjkim Previous Release: 5031151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 5032151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 5033151937Sjkim Current Release: (Same sizes) 5034151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 5035151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 5036151937Sjkim 5037151937Sjkim 5038151937Sjkim2) iASL Compiler/Disassembler: 5039151937Sjkim 5040193267SjkimThe compiler now emits a warning if an attempt is made to generate a 64-bit 5041193267Sjkiminteger constant from within a 32-bit ACPI table (Revision < 2). The integer 5042193267Sjkimis truncated to 32 bits. 5043151937Sjkim 5044193267SjkimFixed a problem with large package objects: if the static length of the 5045193267Sjkimpackage is greater than 255, the "variable length package" opcode is 5046193267Sjkimemitted. Previously, this caused an error. This requires an update to the 5047193267SjkimACPI spec, since it currently (incorrectly) states that packages larger than 5048193267Sjkim255 elements are not allowed. 5049151937Sjkim 5050193267SjkimThe disassembler now correctly handles variable length packages and packages 5051193267Sjkimlarger than 255 elements. 5052151937Sjkim 5053151937Sjkim---------------------------------------- 5054151937Sjkim08 April 2005. Summary of changes for version 20050408: 5055151937Sjkim 5056151937Sjkim1) ACPI CA Core Subsystem: 5057151937Sjkim 5058193267SjkimFixed three cases in the interpreter where an "index" argument to an ASL 5059193267Sjkimfunction was still (internally) 32 bits instead of the required 64 bits. 5060193267SjkimThis was the Index argument to the Index, Mid, and Match operators. 5061151937Sjkim 5062193267SjkimThe "strupr" function is now permanently local (AcpiUtStrupr), since this is 5063193267Sjkimnot a POSIX-defined function and not present in most kernel-level C 5064193267Sjkimlibraries. All references to the C library strupr function have been removed 5065193267Sjkimfrom the headers. 5066151937Sjkim 5067193267SjkimCompleted the deployment of static functions/prototypes. All prototypes with 5068193267Sjkimthe static attribute have been moved from the headers to the owning C file. 5069151937Sjkim 5070193267SjkimImplemented an extract option (-e) for the AcpiBin utility (AML binary 5071193267Sjkimutility). This option allows the utility to extract individual ACPI tables 5072193267Sjkimfrom the output of AcpiDmp. It provides the same functionality of the 5073193267Sjkimacpixtract.pl perl script without the worry of setting the correct perl 5074193267Sjkimoptions. AcpiBin runs on Windows and has not yet been generated/validated in 5075193267Sjkimthe Linux/Unix environment (but should be soon). 5076193267Sjkim 5077193267SjkimUpdated and fixed the table dump option for AcpiBin (-d). This option 5078193267Sjkimconverts a single ACPI table to a hex/ascii file, similar to the output of 5079193267SjkimAcpiDmp. 5080151937Sjkim 5081193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5082193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5083193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5084193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5085193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5086193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5087193267Sjkimthe compiler options used during generation. 5088151937Sjkim 5089151937Sjkim Previous Release: 5090151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 5091151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 5092151937Sjkim Current Release: 5093151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 5094151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 5095151937Sjkim 5096151937Sjkim 5097151937Sjkim2) iASL Compiler/Disassembler: 5098151937Sjkim 5099193267SjkimDisassembler fix: Added a check to ensure that the table length found in the 5100193267SjkimACPI table header within the input file is not longer than the actual input 5101193267Sjkimfile size. This indicates some kind of file or table corruption. 5102151937Sjkim 5103151937Sjkim---------------------------------------- 5104151937Sjkim29 March 2005. Summary of changes for version 20050329: 5105151937Sjkim 5106151937Sjkim1) ACPI CA Core Subsystem: 5107151937Sjkim 5108193267SjkimAn error is now generated if an attempt is made to create a Buffer Field of 5109193267Sjkimlength zero (A CreateField with a length operand of zero.) 5110151937Sjkim 5111193267SjkimThe interpreter now issues a warning whenever executable code at the module 5112193267Sjkimlevel is detected during ACPI table load. This will give some idea of the 5113193267Sjkimprevalence of this type of code. 5114151937Sjkim 5115193267SjkimImplemented support for references to named objects (other than control 5116193267Sjkimmethods) within package objects. 5117151937Sjkim 5118193267SjkimEnhanced package object output for the debug object. Package objects are now 5119193267Sjkimcompletely dumped, showing all elements. 5120151937Sjkim 5121193267SjkimEnhanced miscellaneous object output for the debug object. Any object can 5122193267Sjkimnow be written to the debug object (for example, a device object can be 5123193267Sjkimwritten, and the type of the object will be displayed.) 5124151937Sjkim 5125193267SjkimThe "static" qualifier has been added to all local functions across both the 5126193267Sjkimcore subsystem and the iASL compiler. 5127151937Sjkim 5128193267SjkimThe number of "long" lines (> 80 chars) within the source has been 5129193267Sjkimsignificantly reduced, by about 1/3. 5130151937Sjkim 5131193267SjkimCleaned up all header files to ensure that all CA/iASL functions are 5132193267Sjkimprototyped (even static functions) and the formatting is consistent. 5133151937Sjkim 5134151937SjkimTwo new header files have been added, acopcode.h and acnames.h. 5135151937Sjkim 5136151937SjkimRemoved several obsolete functions that were no longer used. 5137151937Sjkim 5138193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5139193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5140193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5141193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5142193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5143193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5144193267Sjkimthe compiler options used during generation. 5145151937Sjkim 5146151937Sjkim Previous Release: 5147151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5148151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 5149151937Sjkim Current Release: 5150151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 5151151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 5152151937Sjkim 5153151937Sjkim 5154167802Sjkim 5155151937Sjkim2) iASL Compiler/Disassembler: 5156151937Sjkim 5157193267SjkimFixed a problem with the resource descriptor generation/support. For the 5158193267SjkimResourceSourceIndex and the ResourceSource fields, both must be present, or 5159193267Sjkimboth must be not present - can't have one without the other. 5160151937Sjkim 5161193267SjkimThe compiler now returns non-zero from the main procedure if any errors have 5162193267Sjkimoccurred during the compilation. 5163151937Sjkim 5164151937Sjkim 5165151937Sjkim---------------------------------------- 5166151937Sjkim09 March 2005. Summary of changes for version 20050309: 5167151937Sjkim 5168151937Sjkim1) ACPI CA Core Subsystem: 5169151937Sjkim 5170193267SjkimThe string-to-buffer implicit conversion code has been modified again after 5171193267Sjkima change to the ACPI specification. In order to match the behavior of the 5172193267Sjkimother major ACPI implementation, the target buffer is no longer truncated if 5173193267Sjkimthe source string is smaller than an existing target buffer. This change 5174193267Sjkimrequires an update to the ACPI spec, and should eliminate the recent 5175151937SjkimAE_AML_BUFFER_LIMIT issues. 5176151937Sjkim 5177193267SjkimThe "implicit return" support was rewritten to a new algorithm that solves 5178193267Sjkimthe general case. Rather than attempt to determine when a method is about to 5179193267Sjkimexit, the result of every ASL operator is saved momentarily until the very 5180193267Sjkimnext ASL operator is executed. Therefore, no matter how the method exits, 5181193267Sjkimthere will always be a saved implicit return value. This feature is only 5182193267Sjkimenabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate 5183193267SjkimAE_AML_NO_RETURN_VALUE errors when enabled. 5184151937Sjkim 5185193267SjkimImplemented implicit conversion support for the predicate (operand) of the 5186193267SjkimIf, Else, and While operators. String and Buffer arguments are automatically 5187193267Sjkimconverted to Integers. 5188151937Sjkim 5189193267SjkimChanged the string-to-integer conversion behavior to match the new ACPI 5190193267Sjkimerrata: "If no integer object exists, a new integer is created. The ASCII 5191193267Sjkimstring is interpreted as a hexadecimal constant. Each string character is 5192193267Sjkiminterpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting 5193193267Sjkimwith the first character as the most significant digit, and ending with the 5194193267Sjkimfirst non-hexadecimal character or end-of-string." This means that the first 5195193267Sjkimnon-hex character terminates the conversion and this is the code that was 5196193267Sjkimchanged. 5197151937Sjkim 5198193267SjkimFixed a problem where the ObjectType operator would fail (fault) when used 5199193267Sjkimon an Index of a Package which pointed to a null package element. The 5200193267Sjkimoperator now properly returns zero (Uninitialized) in this case. 5201151937Sjkim 5202193267SjkimFixed a problem where the While operator used excessive memory by not 5203193267Sjkimproperly popping the result stack during execution. There was no memory leak 5204193267Sjkimafter execution, however. (Code provided by Valery Podrezov.) 5205151937Sjkim 5206193267SjkimFixed a problem where references to control methods within Package objects 5207193267Sjkimcaused the method to be invoked, instead of producing a reference object 5208193267Sjkimpointing to the method. 5209151937Sjkim 5210193267SjkimRestructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to 5211193267Sjkimimprove performance and reduce code size. (Code provided by Alexey 5212193267SjkimStarikovskiy.) 5213151937Sjkim 5214193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5215193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5216193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5217193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5218193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5219193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5220193267Sjkimthe compiler options used during generation. 5221151937Sjkim 5222151937Sjkim Previous Release: 5223151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5224151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 5225151937Sjkim Current Release: 5226151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5227151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 5228151937Sjkim 5229151937Sjkim 5230151937Sjkim2) iASL Compiler/Disassembler: 5231151937Sjkim 5232193267SjkimFixed a problem with the Return operator with no arguments. Since the AML 5233193267Sjkimgrammar for the byte encoding requires an operand for the Return opcode, the 5234193267Sjkimcompiler now emits a Return(Zero) for this case. An ACPI specification 5235193267Sjkimupdate has been written for this case. 5236151937Sjkim 5237193267SjkimFor tables other than the DSDT, namepath optimization is automatically 5238193267Sjkimdisabled. This is because SSDTs can be loaded anywhere in the namespace, the 5239193267Sjkimcompiler has no knowledge of where, and thus cannot optimize namepaths. 5240151937Sjkim 5241193267SjkimAdded "ProcessorObj" to the ObjectTypeKeyword list. This object type was 5242193267Sjkiminadvertently omitted from the ACPI specification, and will require an 5243193267Sjkimupdate to the spec. 5244151937Sjkim 5245193267SjkimThe source file scan for ASCII characters is now optional (-a). This change 5246193267Sjkimwas made because some vendors place non-ascii characters within comments. 5247193267SjkimHowever, the scan is simply a brute-force byte compare to ensure all 5248193267Sjkimcharacters in the file are in the range 0x00 to 0x7F. 5249151937Sjkim 5250193267SjkimFixed a problem with the CondRefOf operator where the compiler was 5251193267Sjkiminappropriately checking for the existence of the target. Since the point of 5252193267Sjkimthe operator is to check for the existence of the target at run-time, the 5253193267Sjkimcompiler no longer checks for the target existence. 5254151937Sjkim 5255193267SjkimFixed a problem where errors generated from the internal AML interpreter 5256193267Sjkimduring constant folding were not handled properly, causing a fault. 5257151937Sjkim 5258193267SjkimFixed a problem with overly aggressive range checking for the Stall 5259193267Sjkimoperator. The valid range (max 255) is now only checked if the operand is of 5260193267Sjkimtype Integer. All other operand types cannot be statically checked. 5261151937Sjkim 5262193267SjkimFixed a problem where control method references within the RefOf, DeRefOf, 5263193267Sjkimand ObjectType operators were not treated properly. They are now treated as 5264193267Sjkimactual references, not method invocations. 5265151937Sjkim 5266193267SjkimFixed and enhanced the "list namespace" option (-ln). This option was broken 5267193267Sjkima number of releases ago. 5268151937Sjkim 5269193267SjkimImproved error handling for the Field, IndexField, and BankField operators. 5270193267SjkimThe compiler now cleanly reports and recovers from errors in the field 5271193267Sjkimcomponent (FieldUnit) list. 5272151937Sjkim 5273193267SjkimFixed a disassembler problem where the optional ResourceDescriptor fields 5274193267SjkimTRS and TTP were not always handled correctly. 5275151937Sjkim 5276151937SjkimDisassembler - Comments in output now use "//" instead of "/*" 5277151937Sjkim 5278151937Sjkim---------------------------------------- 5279151937Sjkim28 February 2005. Summary of changes for version 20050228: 5280151937Sjkim 5281151937Sjkim1) ACPI CA Core Subsystem: 5282151937Sjkim 5283193267SjkimFixed a problem where the result of an Index() operator (an object 5284193267Sjkimreference) must increment the reference count on the target object for the 5285193267Sjkimlife of the object reference. 5286151937Sjkim 5287193267SjkimImplemented AML Interpreter and Debugger support for the new ACPI 3.0 5288193267SjkimExtended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace 5289193267Sjkimresource descriptors. 5290151937Sjkim 5291193267SjkimImplemented support in the _OSI method for the ACPI 3.0 "Extended Address 5292193267SjkimSpace Descriptor" string, indicating interpreter support for the descriptors 5293193267Sjkimabove. 5294151937Sjkim 5295151937SjkimImplemented header support for the new ACPI 3.0 FADT flag bits. 5296151937Sjkim 5297193267SjkimImplemented header support for the new ACPI 3.0 PCI Express bits for the PM1 5298193267Sjkimstatus/enable registers. 5299151937Sjkim 5300193267SjkimUpdated header support for the MADT processor local Apic struct and MADT 5301193267Sjkimplatform interrupt source struct for new ACPI 3.0 fields. 5302151937Sjkim 5303151937SjkimImplemented header support for the SRAT and SLIT ACPI tables. 5304151937Sjkim 5305193267SjkimImplemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag 5306193267Sjkimat runtime. 5307151937Sjkim 5308193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5309193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5310193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5311193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5312193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5313193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5314193267Sjkimthe compiler options used during generation. 5315151937Sjkim 5316151937Sjkim Previous Release: 5317151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 5318151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 5319151937Sjkim Current Release: 5320151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5321151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 5322151937Sjkim 5323151937Sjkim 5324151937Sjkim2) iASL Compiler/Disassembler: 5325151937Sjkim 5326193267SjkimFixed a problem with the internal 64-bit String-to-integer conversion with 5327193267Sjkimstrings less than two characters long. 5328151937Sjkim 5329193267SjkimFixed a problem with constant folding where the result of the Index() 5330193267Sjkimoperator can not be considered a constant. This means that Index() cannot be 5331193267Sjkima type3 opcode and this will require an update to the ACPI specification. 5332151937Sjkim 5333193267SjkimDisassembler: Implemented support for the TTP, MTP, and TRS resource 5334193267Sjkimdescriptor fields. These fields were inadvertently ignored and not output in 5335193267Sjkimthe disassembly of the resource descriptor. 5336151937Sjkim 5337151937Sjkim 5338151937Sjkim ---------------------------------------- 5339151937Sjkim11 February 2005. Summary of changes for version 20050211: 5340151937Sjkim 5341151937Sjkim1) ACPI CA Core Subsystem: 5342151937Sjkim 5343193267SjkimImplemented ACPI 3.0 support for implicit conversion within the Match() 5344193267Sjkimoperator. MatchObjects can now be of type integer, buffer, or string instead 5345193267Sjkimof just type integer. Package elements are implicitly converted to the type 5346193267Sjkimof the MatchObject. This change aligns the behavior of Match() with the 5347193267Sjkimbehavior of the other logical operators (LLess(), etc.) It also requires an 5348193267Sjkimerrata change to the ACPI specification as this support was intended for 5349193267SjkimACPI 3.0, but was inadvertently omitted. 5350151937Sjkim 5351193267SjkimFixed a problem with the internal implicit "to buffer" conversion. Strings 5352193267Sjkimthat are converted to buffers will cause buffer truncation if the string is 5353193267Sjkimsmaller than the target buffer. Integers that are converted to buffers will 5354193267Sjkimnot cause buffer truncation, only zero extension (both as per the ACPI 5355193267Sjkimspec.) The problem was introduced when code was added to truncate the 5356193267Sjkimbuffer, but this should not be performed in all cases, only the string case. 5357151937Sjkim 5358193267SjkimFixed a problem with the Buffer and Package operators where the interpreter 5359193267Sjkimwould get confused if two such operators were used as operands to an ASL 5360193267Sjkimoperator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result 5361193267Sjkimstack was not being popped after the execution of these operators, resulting 5362193267Sjkimin an AE_NO_RETURN_VALUE exception. 5363151937Sjkim 5364193267SjkimFixed a problem with constructs of the form Store(Index(...),...). The 5365193267Sjkimreference object returned from Index was inadvertently resolved to an actual 5366193267Sjkimvalue. This problem was introduced in version 20050114 when the behavior of 5367193267SjkimStore() was modified to restrict the object types that can be used as the 5368151937Sjkimsource operand (to match the ACPI specification.) 5369151937Sjkim 5370193267SjkimReduced excessive stack use within the AcpiGetObjectInfo procedure. 5371151937Sjkim 5372193267SjkimAdded a fix to aclinux.h to allow generation of AcpiExec on Linux. 5373151937Sjkim 5374193267SjkimUpdated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct. 5375151937Sjkim 5376193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5377193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5378193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5379193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5380193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5381193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5382193267Sjkimthe compiler options used during generation. 5383151937Sjkim 5384151937Sjkim Previous Release: 5385151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 5386151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 5387151937Sjkim Current Release: 5388151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 5389151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 5390151937Sjkim 5391151937Sjkim 5392151937Sjkim2) iASL Compiler/Disassembler: 5393151937Sjkim 5394193267SjkimFixed a code generation problem in the constant folding optimization code 5395193267Sjkimwhere incorrect code was generated if a constant was reduced to a buffer 5396193267Sjkimobject (i.e., a reduced type 5 opcode.) 5397151937Sjkim 5398193267SjkimFixed a typechecking problem for the ToBuffer operator. Caused by an 5399193267Sjkimincorrect return type in the internal opcode information table. 5400151937Sjkim 5401151937Sjkim---------------------------------------- 5402151937Sjkim25 January 2005. Summary of changes for version 20050125: 5403151937Sjkim 5404151937Sjkim1) ACPI CA Core Subsystem: 5405151937Sjkim 5406193267SjkimFixed a recently introduced problem with the Global Lock where the 5407193267Sjkimunderlying semaphore was not created. This problem was introduced in 5408193267Sjkimversion 20050114, and caused an AE_AML_NO_OPERAND exception during an 5409193267SjkimAcquire() operation on _GL. 5410151937Sjkim 5411193267SjkimThe local object cache is now optional, and is disabled by default. Both 5412193267SjkimAcpiExec and the iASL compiler enable the cache because they run in user 5413193267Sjkimmode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE 5414193267Sjkimto enable the local cache. 5415151937Sjkim 5416193267SjkimFixed an issue in the internal function AcpiUtEvaluateObject concerning the 5417193267Sjkimoptional "implicit return" support where an error was returned if no return 5418193267Sjkimobject was expected, but one was implicitly returned. AE_OK is now returned 5419193267Sjkimin this case and the implicitly returned object is deleted. 5420193267SjkimAcpiUtEvaluateObject is only occasionally used, and only to execute reserved 5421193267Sjkimmethods such as _STA and _INI where the return type is known up front. 5422151937Sjkim 5423193267SjkimFixed a few issues with the internal convert-to-integer code. It now returns 5424193267Sjkiman error if an attempt is made to convert a null string, a string of only 5425193267Sjkimblanks/tabs, or a zero-length buffer. This affects both implicit conversion 5426193267Sjkimand explicit conversion via the ToInteger() operator. 5427151937Sjkim 5428193267SjkimThe internal debug code in AcpiUtAcquireMutex has been commented out. It is 5429193267Sjkimnot needed for normal operation and should increase the performance of the 5430193267Sjkimentire subsystem. The code remains in case it is needed for debug purposes 5431193267Sjkimagain. 5432151937Sjkim 5433193267SjkimThe AcpiExec source and makefile are included in the Unix/Linux package for 5434193267Sjkimthe first time. 5435151937Sjkim 5436193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5437193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5438193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5439193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5440193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5441193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5442193267Sjkimthe compiler options used during generation. 5443151937Sjkim 5444151937Sjkim Previous Release: 5445151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 5446151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 5447151937Sjkim Current Release: 5448151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 5449151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 5450151937Sjkim 5451151937Sjkim2) iASL Compiler/Disassembler: 5452151937Sjkim 5453193267SjkimSwitch/Case support: A warning is now issued if the type of the Switch value 5454193267Sjkimcannot be determined at compile time. For example, Switch(Arg0) will 5455193267Sjkimgenerate the warning, and the type is assumed to be an integer. As per the 5456193267SjkimACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the 5457193267Sjkimwarning. 5458151937Sjkim 5459193267SjkimSwitch/Case support: Implemented support for buffer and string objects as 5460193267Sjkimthe switch value. This is an ACPI 3.0 feature, now that LEqual supports 5461193267Sjkimbuffers and strings. 5462151937Sjkim 5463193267SjkimSwitch/Case support: The emitted code for the LEqual() comparisons now uses 5464193267Sjkimthe switch value as the first operand, not the second. The case value is now 5465193267Sjkimthe second operand, and this allows the case value to be implicitly 5466193267Sjkimconverted to the type of the switch value, not the other way around. 5467151937Sjkim 5468193267SjkimSwitch/Case support: Temporary variables are now emitted immediately within 5469193267Sjkimthe control method, not at the global level. This means that there are now 5470193267Sjkim36 temps available per-method, not 36 temps per-module as was the case with 5471193267Sjkimthe earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.) 5472151937Sjkim 5473151937Sjkim---------------------------------------- 5474151937Sjkim14 January 2005. Summary of changes for version 20050114: 5475151937Sjkim 5476193267SjkimAdded 2005 copyright to all module headers. This affects every module in 5477193267Sjkimthe core subsystem, iASL compiler, and the utilities. 5478151937Sjkim 5479151937Sjkim1) ACPI CA Core Subsystem: 5480151937Sjkim 5481193267SjkimFixed an issue with the String-to-Buffer conversion code where the string 5482193267Sjkimnull terminator was not included in the buffer after conversion, but there 5483193267Sjkimis existing ASL that assumes the string null terminator is included. This is 5484193267Sjkimthe root of the ACPI_AML_BUFFER_LIMIT regression. This problem was 5485193267Sjkimintroduced in the previous version when the code was updated to correctly 5486193267Sjkimset the converted buffer size as per the ACPI specification. The ACPI spec 5487193267Sjkimis ambiguous and will be updated to specify that the null terminator must be 5488193267Sjkimincluded in the converted buffer. This also affects the ToBuffer() ASL 5489193267Sjkimoperator. 5490151937Sjkim 5491193267SjkimFixed a problem with the Mid() ASL/AML operator where it did not work 5492193267Sjkimcorrectly on Buffer objects. Newly created sub-buffers were not being marked 5493193267Sjkimas initialized. 5494151937Sjkim 5495167802Sjkim 5496193267SjkimFixed a problem in AcpiTbFindTable where incorrect string compares were 5497193267Sjkimperformed on the OemId and OemTableId table header fields. These fields are 5498193267Sjkimnot null terminated, so strncmp is now used instead of strcmp. 5499151937Sjkim 5500193267SjkimImplemented a restriction on the Store() ASL/AML operator to align the 5501193267Sjkimbehavior with the ACPI specification. Previously, any object could be used 5502193267Sjkimas the source operand. Now, the only objects that may be used are Integers, 5503193267SjkimBuffers, Strings, Packages, Object References, and DDB Handles. If 5504193267Sjkimnecessary, the original behavior can be restored by enabling the 5505151937SjkimEnableInterpreterSlack flag. 5506151937Sjkim 5507193267SjkimEnhanced the optional "implicit return" support to allow an implicit return 5508193267Sjkimvalue from methods that are invoked externally via the AcpiEvaluateObject 5509193267Sjkiminterface. This enables implicit returns from the _STA and _INI methods, 5510193267Sjkimfor example. 5511151937Sjkim 5512193267SjkimChanged the Revision() ASL/AML operator to return the current version of the 5513193267SjkimAML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned 5514193267Sjkimthe supported ACPI version (This is the function of the _REV method). 5515151937Sjkim 5516193267SjkimUpdated the _REV predefined method to return the currently supported version 5517193267Sjkimof ACPI, now 3. 5518151937Sjkim 5519151937SjkimImplemented batch mode option for the AcpiExec utility (-b). 5520151937Sjkim 5521193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5522193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5523193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5524193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5525193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5526193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5527193267Sjkimthe compiler options used during generation. 5528151937Sjkim 5529151937Sjkim Previous Release: 5530151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5531151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5532151937Sjkim Current Release: 5533151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 5534151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 5535151937Sjkim 5536151937Sjkim---------------------------------------- 5537151937Sjkim10 December 2004. Summary of changes for version 20041210: 5538151937Sjkim 5539193267SjkimACPI 3.0 support is nearing completion in both the iASL compiler and the 5540193267SjkimACPI CA core subsystem. 5541151937Sjkim 5542151937Sjkim1) ACPI CA Core Subsystem: 5543151937Sjkim 5544193267SjkimFixed a problem in the ToDecimalString operator where the resulting string 5545193267Sjkimlength was incorrectly calculated. The length is now calculated exactly, 5546193267Sjkimeliminating incorrect AE_STRING_LIMIT exceptions. 5547151937Sjkim 5548193267SjkimFixed a problem in the ToHexString operator to allow a maximum 200 character 5549193267Sjkimstring to be produced. 5550151937Sjkim 5551193267SjkimFixed a problem in the internal string-to-buffer and buffer-to-buffer copy 5552193267Sjkimroutine where the length of the resulting buffer was not truncated to the 5553193267Sjkimnew size (if the target buffer already existed). 5554151937Sjkim 5555193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5556193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5557193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5558193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5559193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5560193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5561193267Sjkimthe compiler options used during generation. 5562151937Sjkim 5563151937Sjkim Previous Release: 5564151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5565151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5566151937Sjkim Current Release: 5567151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5568151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5569151937Sjkim 5570151937Sjkim 5571151937Sjkim2) iASL Compiler/Disassembler: 5572151937Sjkim 5573193267SjkimImplemented the new ACPI 3.0 resource template macros - DWordSpace, 5574193267SjkimExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace. 5575193267SjkimIncludes support in the disassembler. 5576151937Sjkim 5577193267SjkimImplemented support for the new (ACPI 3.0) parameter to the Register macro, 5578193267SjkimAccessSize. 5579151937Sjkim 5580193267SjkimFixed a problem where the _HE resource name for the Interrupt macro was 5581193267Sjkimreferencing bit 0 instead of bit 1. 5582151937Sjkim 5583193267SjkimImplemented check for maximum 255 interrupts in the Interrupt macro. 5584151937Sjkim 5585193267SjkimFixed a problem with the predefined resource descriptor names where 5586193267Sjkimincorrect AML code was generated if the offset within the resource buffer 5587193267Sjkimwas 0 or 1. The optimizer shortened the AML code to a single byte opcode 5588193267Sjkimbut did not update the surrounding package lengths. 5589151937Sjkim 5590193267SjkimChanges to the Dma macro: All channels within the channel list must be in 5591193267Sjkimthe range 0-7. Maximum 8 channels can be specified. BusMaster operand is 5592193267Sjkimoptional (default is BusMaster). 5593151937Sjkim 5594193267SjkimImplemented check for maximum 7 data bytes for the VendorShort macro. 5595151937Sjkim 5596193267SjkimThe ReadWrite parameter is now optional for the Memory32 and similar macros. 5597151937Sjkim 5598151937Sjkim---------------------------------------- 5599151937Sjkim03 December 2004. Summary of changes for version 20041203: 5600151937Sjkim 5601151937Sjkim1) ACPI CA Core Subsystem: 5602151937Sjkim 5603193267SjkimThe low-level field insertion/extraction code (exfldio) has been completely 5604193267Sjkimrewritten to eliminate unnecessary complexity, bugs, and boundary 5605193267Sjkimconditions. 5606151937Sjkim 5607193267SjkimFixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString 5608193267Sjkimoperators where the input operand could be inadvertently deleted if no 5609193267Sjkimconversion was necessary (e.g., if the input to ToInteger was an Integer 5610193267Sjkimobject.) 5611151937Sjkim 5612193267SjkimFixed a problem with the ToDecimalString and ToHexString where an incorrect 5613193267Sjkimexception code was returned if the resulting string would be > 200 chars. 5614193267SjkimAE_STRING_LIMIT is now returned. 5615151937Sjkim 5616193267SjkimFixed a problem with the Concatenate operator where AE_OK was always 5617193267Sjkimreturned, even if the operation failed. 5618151937Sjkim 5619193267SjkimFixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128 5620193267Sjkimsemaphores to be allocated. 5621151937Sjkim 5622193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5623193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5624193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5625193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5626193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5627193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5628193267Sjkimthe compiler options used during generation. 5629151937Sjkim 5630151937Sjkim Previous Release: 5631151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5632151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5633151937Sjkim Current Release: 5634151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5635151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5636151937Sjkim 5637151937Sjkim 5638151937Sjkim2) iASL Compiler/Disassembler: 5639151937Sjkim 5640193267SjkimFixed typechecking for the ObjectType and SizeOf operators. Problem was 5641193267Sjkimrecently introduced in 20041119. 5642151937Sjkim 5643193267SjkimFixed a problem with the ToUUID macro where the upper nybble of each buffer 5644193267Sjkimbyte was inadvertently set to zero. 5645151937Sjkim 5646151937Sjkim---------------------------------------- 5647138287Smarks19 November 2004. Summary of changes for version 20041119: 5648138287Smarks 5649138287Smarks1) ACPI CA Core Subsystem: 5650138287Smarks 5651193267SjkimFixed a problem in the internal ConvertToInteger routine where new integers 5652193267Sjkimwere not truncated to 32 bits for 32-bit ACPI tables. This routine converts 5653193267Sjkimbuffers and strings to integers. 5654138287Smarks 5655193267SjkimImplemented support to store a value to an Index() on a String object. This 5656193267Sjkimis an ACPI 2.0 feature that had not yet been implemented. 5657138287Smarks 5658193267SjkimImplemented new behavior for storing objects to individual package elements 5659193267Sjkim(via the Index() operator). The previous behavior was to invoke the implicit 5660193267Sjkimconversion rules if an object was already present at the index. The new 5661193267Sjkimbehavior is to simply delete any existing object and directly store the new 5662193267Sjkimobject. Although the ACPI specification seems unclear on this subject, other 5663193267SjkimACPI implementations behave in this manner. (This is the root of the 5664193267SjkimAE_BAD_HEX_CONSTANT issue.) 5665138287Smarks 5666193267SjkimModified the RSDP memory scan mechanism to support the extended checksum for 5667193267SjkimACPI 2.0 (and above) RSDPs. Note that the search continues until a valid 5668193267SjkimRSDP signature is found with a valid checksum. 5669138287Smarks 5670193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5671193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5672193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5673193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5674193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5675193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5676193267Sjkimthe compiler options used during generation. 5677138287Smarks 5678151937Sjkim Previous Release: 5679151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5680151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5681151937Sjkim Current Release: 5682151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5683151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5684138287Smarks 5685138287Smarks 5686138287Smarks2) iASL Compiler/Disassembler: 5687138287Smarks 5688138287SmarksFixed a missing semicolon in the aslcompiler.y file. 5689138287Smarks 5690138287Smarks---------------------------------------- 5691138287Smarks05 November 2004. Summary of changes for version 20041105: 5692138287Smarks 5693138287Smarks1) ACPI CA Core Subsystem: 5694138287Smarks 5695193267SjkimImplemented support for FADT revision 2. This was an interim table (between 5696193267SjkimACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register. 5697138287Smarks 5698193267SjkimImplemented optional support to allow uninitialized LocalX and ArgX 5699193267Sjkimvariables in a control method. The variables are initialized to an Integer 5700193267Sjkimobject with a value of zero. This support is enabled by setting the 5701193267SjkimAcpiGbl_EnableInterpreterSlack flag to TRUE. 5702138287Smarks 5703193267SjkimImplemented support for Integer objects for the SizeOf operator. Either 4 5704193267Sjkimor 8 is returned, depending on the current integer size (32-bit or 64-bit, 5705193267Sjkimdepending on the parent table revision). 5706138287Smarks 5707193267SjkimFixed a problem in the implementation of the SizeOf and ObjectType operators 5708193267Sjkimwhere the operand was resolved to a value too early, causing incorrect 5709193267Sjkimreturn values for some objects. 5710138287Smarks 5711138287SmarksFixed some possible memory leaks during exceptional conditions. 5712138287Smarks 5713193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5714193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5715193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5716193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5717193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5718193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5719193267Sjkimthe compiler options used during generation. 5720138287Smarks 5721138287Smarks Previous Release: 5722138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5723138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5724138287Smarks Current Release: 5725138287Smarks Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5726138287Smarks Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5727138287Smarks 5728138287Smarks 5729138287Smarks2) iASL Compiler/Disassembler: 5730138287Smarks 5731138287SmarksImplemented support for all ACPI 3.0 reserved names and methods. 5732138287Smarks 5733193267SjkimImplemented all ACPI 3.0 grammar elements in the front-end, including 5734193267Sjkimsupport for semicolons. 5735138287Smarks 5736138287SmarksImplemented the ACPI 3.0 Function() and ToUUID() macros 5737138287Smarks 5738193267SjkimFixed a problem in the disassembler where a Scope() operator would not be 5739193267Sjkimemitted properly if the target of the scope was in another table. 5740138287Smarks 5741138287Smarks---------------------------------------- 5742138287Smarks15 October 2004. Summary of changes for version 20041015: 5743138287Smarks 5744193267SjkimNote: ACPI CA is currently undergoing an in-depth and complete formal 5745193267Sjkimevaluation to test/verify the following areas. Other suggestions are 5746193267Sjkimwelcome. This will result in an increase in the frequency of releases and 5747193267Sjkimthe number of bug fixes in the next few months. 5748138287Smarks - Functional tests for all ASL/AML operators 5749138287Smarks - All implicit/explicit type conversions 5750138287Smarks - Bit fields and operation regions 5751138287Smarks - 64-bit math support and 32-bit-only "truncated" math support 5752138287Smarks - Exceptional conditions, both compiler and interpreter 5753138287Smarks - Dynamic object deletion and memory leaks 5754138287Smarks - ACPI 3.0 support when implemented 5755138287Smarks - External interfaces to the ACPI subsystem 5756138287Smarks 5757138287Smarks 5758138287Smarks1) ACPI CA Core Subsystem: 5759138287Smarks 5760193267SjkimFixed two alignment issues on 64-bit platforms - within debug statements in 5761193267SjkimAcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address 5762193267Sjkimfield within the non-aligned ACPI generic address structure. 5763138287Smarks 5764193267SjkimFixed a problem in the Increment and Decrement operators where incorrect 5765193267Sjkimoperand resolution could result in the inadvertent modification of the 5766193267Sjkimoriginal integer when the integer is passed into another method as an 5767193267Sjkimargument and the arg is then incremented/decremented. 5768138287Smarks 5769193267SjkimFixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit 5770193267SjkimBCD number were truncated during conversion. 5771138287Smarks 5772193267SjkimFixed a problem in the ToDecimal operator where the length of the resulting 5773193267Sjkimstring could be set incorrectly too long if the input operand was a Buffer 5774193267Sjkimobject. 5775138287Smarks 5776193267SjkimFixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0) 5777193267Sjkimwithin a buffer would prematurely terminate a compare between buffer 5778193267Sjkimobjects. 5779138287Smarks 5780193267SjkimAdded a check for string overflow (>200 characters as per the ACPI 5781193267Sjkimspecification) during the Concatenate operator with two string operands. 5782138287Smarks 5783193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5784193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5785193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5786193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5787193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5788193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5789193267Sjkimthe compiler options used during generation. 5790138287Smarks 5791138287Smarks Previous Release: 5792138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5793138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5794138287Smarks Current Release: 5795138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5796138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5797138287Smarks 5798138287Smarks 5799167802Sjkim 5800138287Smarks2) iASL Compiler/Disassembler: 5801138287Smarks 5802193267SjkimAllow the use of the ObjectType operator on uninitialized Locals and Args 5803193267Sjkim(returns 0 as per the ACPI specification). 5804138287Smarks 5805193267SjkimFixed a problem where the compiler would fault if there was a syntax error 5806193267Sjkimin the FieldName of all of the various CreateXXXField operators. 5807138287Smarks 5808193267SjkimDisallow the use of lower case letters within the EISAID macro, as per the 5809193267SjkimACPI specification. All EISAID strings must be of the form "UUUNNNN" Where 5810193267SjkimU is an uppercase letter and N is a hex digit. 5811138287Smarks 5812138287Smarks 5813138287Smarks---------------------------------------- 5814138287Smarks06 October 2004. Summary of changes for version 20041006: 5815138287Smarks 5816138287Smarks1) ACPI CA Core Subsystem: 5817138287Smarks 5818193267SjkimImplemented support for the ACPI 3.0 Timer operator. This ASL function 5819193267Sjkimimplements a 64-bit timer with 100 nanosecond granularity. 5820138287Smarks 5821193267SjkimDefined a new OSL interface, AcpiOsGetTimer. This interface is used to 5822193267Sjkimimplement the ACPI 3.0 Timer operator. This allows the host OS to implement 5823193267Sjkimthe timer with the best clock available. Also, it keeps the core subsystem 5824193267Sjkimout of the clock handling business, since the host OS (usually) performs 5825193267Sjkimthis function. 5826138287Smarks 5827193267SjkimFixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write) 5828193267Sjkimfunctions use a 64-bit address which is part of the packed ACPI Generic 5829193267SjkimAddress Structure. Since the structure is non-aligned, the alignment macros 5830193267Sjkimare now used to extract the address to a local variable before use. 5831138287Smarks 5832193267SjkimFixed a problem where the ToInteger operator assumed all input strings were 5833193267Sjkimhexadecimal. The operator now handles both decimal strings and hex strings 5834193267Sjkim(prefixed with "0x"). 5835138287Smarks 5836193267SjkimFixed a problem where the string length in the string object created as a 5837193267Sjkimresult of the internal ConvertToString procedure could be incorrect. This 5838193267Sjkimpotentially affected all implicit conversions and also the ToDecimalString 5839193267Sjkimand ToHexString operators. 5840138287Smarks 5841193267SjkimFixed two problems in the ToString operator. If the length parameter was 5842193267Sjkimzero, an incorrect string object was created and the value of the input 5843193267Sjkimlength parameter was inadvertently changed from zero to Ones. 5844138287Smarks 5845193267SjkimFixed a problem where the optional ResourceSource string in the ExtendedIRQ 5846193267Sjkimresource macro was ignored. 5847138287Smarks 5848193267SjkimSimplified the interfaces to the internal division functions, reducing code 5849193267Sjkimsize and complexity. 5850138287Smarks 5851193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5852193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5853193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5854193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5855193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5856193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5857193267Sjkimthe compiler options used during generation. 5858138287Smarks 5859138287Smarks Previous Release: 5860138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5861138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5862138287Smarks Current Release: 5863138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5864138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5865138287Smarks 5866138287Smarks 5867138287Smarks2) iASL Compiler/Disassembler: 5868138287Smarks 5869138287SmarksImplemented support for the ACPI 3.0 Timer operator. 5870138287Smarks 5871193267SjkimFixed a problem where the Default() operator was inadvertently ignored in a 5872193267SjkimSwitch/Case block. This was a problem in the translation of the Switch 5873193267Sjkimstatement to If...Else pairs. 5874138287Smarks 5875193267SjkimAdded support to allow a standalone Return operator, with no parentheses (or 5876193267Sjkimoperands). 5877138287Smarks 5878193267SjkimFixed a problem with code generation for the ElseIf operator where the 5879193267Sjkimtranslated Else...If parse tree was improperly constructed leading to the 5880193267Sjkimloss of some code. 5881138287Smarks 5882138287Smarks---------------------------------------- 5883138287Smarks22 September 2004. Summary of changes for version 20040922: 5884138287Smarks 5885138287Smarks1) ACPI CA Core Subsystem: 5886138287Smarks 5887193267SjkimFixed a problem with the implementation of the LNot() operator where "Ones" 5888193267Sjkimwas not returned for the TRUE case. Changed the code to return Ones instead 5889193267Sjkimof (!Arg) which was usually 1. This change affects iASL constant folding for 5890193267Sjkimthis operator also. 5891138287Smarks 5892193267SjkimFixed a problem in AcpiUtInitializeBuffer where an existing buffer was not 5893193267Sjkiminitialized properly -- Now zero the entire buffer in this case where the 5894193267Sjkimbuffer already exists. 5895138287Smarks 5896193267SjkimChanged the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 5897193267SjkimMilliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all 5898193267Sjkimrelated code considerably. This will require changes/updates to all OS 5899193267Sjkiminterface layers (OSLs.) 5900138287Smarks 5901193267SjkimImplemented a new external interface, AcpiInstallExceptionHandler, to allow 5902193267Sjkima system exception handler to be installed. This handler is invoked upon any 5903193267Sjkimrun-time exception that occurs during control method execution. 5904138287Smarks 5905193267SjkimAdded support for the DSDT in AcpiTbFindTable. This allows the 5906138287SmarksDataTableRegion() operator to access the local copy of the DSDT. 5907138287Smarks 5908193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5909193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5910193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5911193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5912193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5913193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5914193267Sjkimthe compiler options used during generation. 5915138287Smarks 5916138287Smarks Previous Release: 5917138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5918138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5919138287Smarks Current Release: 5920138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5921138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5922138287Smarks 5923138287Smarks 5924138287Smarks2) iASL Compiler/Disassembler: 5925138287Smarks 5926193267SjkimFixed a problem with constant folding and the LNot operator. LNot was 5927193267Sjkimreturning 1 in the TRUE case, not Ones as per the ACPI specification. This 5928193267Sjkimcould result in the generation of an incorrect folded/reduced constant. 5929138287Smarks 5930193267SjkimEnd-Of-File is now allowed within a "//"-style comment. A parse error no 5931193267Sjkimlonger occurs if such a comment is at the very end of the input ASL source 5932193267Sjkimfile. 5933138287Smarks 5934193267SjkimImplemented the "-r" option to override the Revision in the table header. 5935193267SjkimThe initial use of this option will be to simplify the evaluation of the AML 5936193267Sjkiminterpreter by allowing a single ASL source module to be compiled for either 5937193267Sjkim32-bit or 64-bit integers. 5938138287Smarks 5939138287Smarks 5940138287Smarks---------------------------------------- 5941138287Smarks27 August 2004. Summary of changes for version 20040827: 5942138287Smarks 5943138287Smarks1) ACPI CA Core Subsystem: 5944138287Smarks 5945193267Sjkim- Implemented support for implicit object conversion in the non-numeric 5946193267Sjkimlogical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and 5947193267SjkimLNotEqual.) Any combination of Integers/Strings/Buffers may now be used; 5948193267Sjkimthe second operand is implicitly converted on the fly to match the type of 5949193267Sjkimthe first operand. For example: 5950138287Smarks 5951138287Smarks LEqual (Source1, Source2) 5952138287Smarks 5953193267SjkimSource1 and Source2 must each evaluate to an integer, a string, or a buffer. 5954193267SjkimThe data type of Source1 dictates the required type of Source2. Source2 is 5955193267Sjkimimplicitly converted if necessary to match the type of Source1. 5956138287Smarks 5957193267Sjkim- Updated and corrected the behavior of the string conversion support. The 5958193267Sjkimrules concerning conversion of buffers to strings (according to the ACPI 5959193267Sjkimspecification) are as follows: 5960138287Smarks 5961193267SjkimToDecimalString - explicit byte-wise conversion of buffer to string of 5962193267Sjkimdecimal values (0-255) separated by commas. ToHexString - explicit byte-wise 5963193267Sjkimconversion of buffer to string of hex values (0-FF) separated by commas. 5964193267SjkimToString - explicit byte-wise conversion of buffer to string. Byte-by-byte 5965193267Sjkimcopy with no transform except NULL terminated. Any other implicit buffer-to- 5966193267Sjkimstring conversion - byte-wise conversion of buffer to string of hex values 5967193267Sjkim(0-FF) separated by spaces. 5968138287Smarks 5969138287Smarks- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. 5970138287Smarks 5971193267Sjkim- Fixed a problem in AcpiNsGetPathnameLength where the returned length was 5972193267Sjkimone byte too short in the case of a node in the root scope. This could 5973193267Sjkimcause a fault during debug output. 5974138287Smarks 5975193267Sjkim- Code and Data Size: Current and previous core subsystem library sizes are 5976193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5977193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5978193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5979193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5980193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5981193267Sjkimthe compiler options used during generation. 5982138287Smarks 5983138287Smarks Previous Release: 5984138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5985138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5986138287Smarks Current Release: 5987138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5988138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5989138287Smarks 5990138287Smarks 5991138287Smarks2) iASL Compiler/Disassembler: 5992138287Smarks 5993138287Smarks- Fixed a Linux generation error. 5994138287Smarks 5995138287Smarks 5996138287Smarks---------------------------------------- 5997138287Smarks16 August 2004. Summary of changes for version 20040816: 5998138287Smarks 5999138287Smarks1) ACPI CA Core Subsystem: 6000138287Smarks 6001193267SjkimDesigned and implemented support within the AML interpreter for the so- 6002193267Sjkimcalled "implicit return". This support returns the result of the last ASL 6003193267Sjkimoperation within a control method, in the absence of an explicit Return() 6004193267Sjkimoperator. A few machines depend on this behavior, even though it is not 6005193267Sjkimexplicitly supported by the ASL language. It is optional support that can 6006193267Sjkimbe enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag. 6007138287Smarks 6008193267SjkimRemoved support for the PCI_Config address space from the internal low level 6009193267Sjkimhardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This 6010193267Sjkimsupport was not used internally, and would not work correctly anyway because 6011193267Sjkimthe PCI bus number and segment number were not supported. There are 6012193267Sjkimseparate interfaces for PCI configuration space access because of the unique 6013138287Smarksinterface. 6014138287Smarks 6015193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6016193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6017193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6018193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6019193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6020193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6021193267Sjkimthe compiler options used during generation. 6022138287Smarks 6023138287Smarks Previous Release: 6024138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 6025138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 6026138287Smarks Current Release: 6027138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 6028138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 6029138287Smarks 6030138287Smarks 6031138287Smarks2) iASL Compiler/Disassembler: 6032138287Smarks 6033193267SjkimFixed a problem where constants in ASL expressions at the root level (not 6034193267Sjkimwithin a control method) could be inadvertently truncated during code 6035193267Sjkimgeneration. This problem was introduced in the 20040715 release. 6036138287Smarks 6037138287Smarks 6038138287Smarks---------------------------------------- 6039138287Smarks15 July 2004. Summary of changes for version 20040715: 6040138287Smarks 6041138287Smarks1) ACPI CA Core Subsystem: 6042138287Smarks 6043193267SjkimRestructured the internal HW GPE interfaces to pass/track the current state 6044193267Sjkimof interrupts (enabled/disabled) in order to avoid possible deadlock and 6045193267Sjkimincrease flexibility of the interfaces. 6046138287Smarks 6047193267SjkimImplemented a "lexicographical compare" for String and Buffer objects within 6048193267Sjkimthe logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -- 6049193267Sjkimas per further clarification to the ACPI specification. Behavior is similar 6050193267Sjkimto C library "strcmp". 6051138287Smarks 6052193267SjkimCompleted a major reduction in CPU stack use for the AcpiGetFirmwareTable 6053193267Sjkimexternal function. In the 32-bit non-debug case, the stack use has been 6054193267Sjkimreduced from 168 bytes to 32 bytes. 6055138287Smarks 6056193267SjkimDeployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack, 6057193267Sjkimwhose purpose is to allow the AML interpreter to forgive certain bad AML 6058193267Sjkimconstructs. Default setting is FALSE. 6059138287Smarks 6060193267SjkimImplemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO 6061193267Sjkimsupport code. If enabled, it allows field access to go beyond the end of a 6062193267Sjkimregion definition if the field is within the region length rounded up to the 6063193267Sjkimnext access width boundary (a common coding error.) 6064138287Smarks 6065193267SjkimRenamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to 6066193267SjkimACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these 6067193267Sjkimsymbols are lowercased by the latest version of the AcpiSrc tool. 6068138287Smarks 6069193267SjkimThe prototypes for the PCI interfaces in acpiosxf.h have been updated to 6070193267Sjkimrename "Register" to simply "Reg" to prevent certain compilers from 6071193267Sjkimcomplaining. 6072138287Smarks 6073193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6074193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6075193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6076193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6077193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6078193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6079193267Sjkimthe compiler options used during generation. 6080138287Smarks 6081138287Smarks Previous Release: 6082138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 6083138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 6084138287Smarks Current Release: 6085138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 6086138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 6087138287Smarks 6088138287Smarks 6089138287Smarks2) iASL Compiler/Disassembler: 6090138287Smarks 6091193267SjkimImplemented full support for Package objects within the Case() operator. 6092193267SjkimNote: The Break() operator is currently not supported within Case blocks 6093193267Sjkim(TermLists) as there is some question about backward compatibility with ACPI 6094193267Sjkim1.0 interpreters. 6095138287Smarks 6096167802Sjkim 6097193267SjkimFixed a problem where complex terms were not supported properly within the 6098193267SjkimSwitch() operator. 6099138287Smarks 6100193267SjkimEliminated extraneous warning for compiler-emitted reserved names of the 6101193267Sjkimform "_T_x". (Used in Switch/Case operators.) 6102138287Smarks 6103193267SjkimEliminated optimization messages for "_T_x" objects and small constants 6104193267Sjkimwithin the DefinitionBlock operator. 6105138287Smarks 6106138287Smarks 6107138287Smarks---------------------------------------- 6108138287Smarks15 June 2004. Summary of changes for version 20040615: 6109138287Smarks 6110138287Smarks1) ACPI CA Core Subsystem: 6111138287Smarks 6112193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 6113193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 6114193267SjkimLLessEqual. 6115138287Smarks 6116193267SjkimAll directory names in the entire source package are lower case, as they 6117193267Sjkimwere in earlier releases. 6118138287Smarks 6119193267SjkimImplemented "Disassemble" command in the AML debugger that will disassemble 6120193267Sjkima single control method. 6121138287Smarks 6122193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6123193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6124193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6125193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6126193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6127193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6128193267Sjkimthe compiler options used during generation. 6129138287Smarks 6130138287Smarks Previous Release: 6131138287Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 6132138287Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 6133167802Sjkim 6134138287Smarks Current Release: 6135138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 6136138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 6137138287Smarks 6138138287Smarks 6139138287Smarks2) iASL Compiler/Disassembler: 6140138287Smarks 6141193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 6142193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 6143193267SjkimLLessEqual. 6144138287Smarks 6145193267SjkimAll directory names in the entire source package are lower case, as they 6146193267Sjkimwere in earlier releases. 6147138287Smarks 6148193267SjkimFixed a fault when using the -g or -d<nofilename> options if the FADT was 6149193267Sjkimnot found. 6150138287Smarks 6151193267SjkimFixed an issue with the Windows version of the compiler where later versions 6152193267Sjkimof Windows place the FADT in the registry under the name "FADT" and not 6153193267Sjkim"FACP" as earlier versions did. This applies when using the -g or - 6154193267Sjkimd<nofilename> options. The compiler now looks for both strings as 6155193267Sjkimnecessary. 6156138287Smarks 6157193267SjkimFixed a problem with compiler namepath optimization where a namepath within 6158193267Sjkimthe Scope() operator could not be optimized if the namepath was a subpath of 6159193267Sjkimthe current scope path. 6160138287Smarks 6161138287Smarks---------------------------------------- 6162131440Smarks27 May 2004. Summary of changes for version 20040527: 6163131440Smarks 6164131440Smarks1) ACPI CA Core Subsystem: 6165131440Smarks 6166193267SjkimCompleted a new design and implementation for EBDA (Extended BIOS Data Area) 6167193267Sjkimsupport in the RSDP scan code. The original code improperly scanned for the 6168193267SjkimEBDA by simply scanning from memory location 0 to 0x400. The correct method 6169193267Sjkimis to first obtain the EBDA pointer from within the BIOS data area, then 6170193267Sjkimscan 1K of memory starting at the EBDA pointer. There appear to be few if 6171131440Smarksany machines that place the RSDP in the EBDA, however. 6172131440Smarks 6173193267SjkimIntegrated a fix for a possible fault during evaluation of BufferField 6174193267Sjkimarguments. Obsolete code that was causing the problem was removed. 6175131440Smarks 6176193267SjkimFound and fixed a problem in the Field Support Code where data could be 6177193267Sjkimcorrupted on a bit field read that starts on an aligned boundary but does 6178193267Sjkimnot end on an aligned boundary. Merged the read/write "datum length" 6179193267Sjkimcalculation code into a common procedure. 6180131440Smarks 6181131440SmarksRolled in a couple of changes to the FreeBSD-specific header. 6182131440Smarks 6183167802Sjkim 6184193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6185193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6186193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6187193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6188193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6189193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6190193267Sjkimthe compiler options used during generation. 6191131440Smarks 6192131440Smarks Previous Release: 6193131440Smarks Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6194131440Smarks Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 6195131440Smarks Current Release: 6196131440Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 6197131440Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 6198131440Smarks 6199131440Smarks 6200131440Smarks2) iASL Compiler/Disassembler: 6201131440Smarks 6202193267SjkimFixed a generation warning produced by some overly-verbose compilers for a 6203193267Sjkim64-bit constant. 6204131440Smarks 6205131440Smarks---------------------------------------- 6206129684Snjl14 May 2004. Summary of changes for version 20040514: 6207129684Snjl 6208129684Snjl1) ACPI CA Core Subsystem: 6209129684Snjl 6210193267SjkimFixed a problem where hardware GPE enable bits sometimes not set properly 6211193267Sjkimduring and after GPE method execution. Result of 04/27 changes. 6212129684Snjl 6213129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 6214129684Snjl 6215193267SjkimRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single 6216193267SjkimAcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to 6217193267Sjkimthe new AcpiEv* calls as appropriate. 6218129684Snjl 6219193267SjkimACPI_OS_NAME was removed from the OS-specific headers. The default name is 6220193267Sjkimnow "Microsoft Windows NT" for maximum compatibility. However this can be 6221193267Sjkimchanged by modifying the acconfig.h file. 6222129684Snjl 6223193267SjkimAllow a single invocation of AcpiInstallNotifyHandler for a handler that 6224193267Sjkimtraps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag. 6225129684Snjl 6226193267SjkimRun _INI methods on ThermalZone objects. This is against the ACPI 6227193267Sjkimspecification, but there is apparently ASL code in the field that has these 6228193267Sjkim_INI methods, and apparently "other" AML interpreters execute them. 6229129684Snjl 6230193267SjkimPerformed a full 16/32/64 bit lint that resulted in some small changes. 6231129684Snjl 6232193267SjkimAdded a sleep simulation command to the AML debugger to test sleep code. 6233129684Snjl 6234193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6235193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6236193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6237193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6238193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6239193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6240193267Sjkimthe compiler options used during generation. 6241129684Snjl 6242129684Snjl Previous Release: 6243129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6244129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 6245129684Snjl Current Release: 6246129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6247129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 6248129684Snjl 6249129684Snjl---------------------------------------- 6250129684Snjl27 April 2004. Summary of changes for version 20040427: 6251129684Snjl 6252129684Snjl1) ACPI CA Core Subsystem: 6253129684Snjl 6254193267SjkimCompleted a major overhaul of the GPE handling within ACPI CA. There are 6255193267Sjkimnow three types of GPEs: wake-only, runtime-only, and combination wake/run. 6256193267SjkimThe only GPEs allowed to be combination wake/run are for button-style 6257193267Sjkimdevices such as a control-method power button, control-method sleep button, 6258193267Sjkimor a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not 6259193267Sjkimreferenced by any _PRW methods are marked for "runtime" and hardware 6260193267Sjkimenabled. Any GPE that is referenced by a _PRW method is marked for "wake" 6261193267Sjkim(and disabled at runtime). However, at sleep time, only those GPEs that 6262193267Sjkimhave been specifically enabled for wake via the AcpiEnableGpe interface will 6263193267Sjkimactually be hardware enabled. 6264129684Snjl 6265193267SjkimA new external interface has been added, AcpiSetGpeType(), that is meant to 6266193267Sjkimbe used by device drivers to force a GPE to a particular type. It will be 6267193267Sjkimespecially useful for the drivers for the button devices mentioned above. 6268129684Snjl 6269193267SjkimCompleted restructuring of the ACPI CA initialization sequence so that 6270193267Sjkimdefault operation region handlers are installed before GPEs are initialized 6271193267Sjkimand the _PRW methods are executed. This will prevent errors when the _PRW 6272193267Sjkimmethods attempt to access system memory or I/O space. 6273129684Snjl 6274193267SjkimGPE enable/disable no longer reads the GPE enable register. We now keep the 6275193267Sjkimenable info for runtime and wake separate and in the GPE_EVENT_INFO. We 6276193267Sjkimthus no longer depend on the hardware to maintain these bits. 6277129684Snjl 6278193267SjkimAlways clear the wake status and fixed/GPE status bits before sleep, even 6279193267Sjkimfor state S5. 6280129684Snjl 6281193267SjkimImproved the AML debugger output for displaying the GPE blocks and their 6282193267Sjkimcurrent status. 6283129684Snjl 6284193267SjkimAdded new strings for the _OSI method, of the form "Windows 2001 SPx" where 6285193267Sjkimx = 0,1,2,3,4. 6286129684Snjl 6287193267SjkimFixed a problem where the physical address was incorrectly calculated when 6288193267Sjkimthe Load() operator was used to directly load from an Operation Region (vs. 6289193267Sjkimloading from a Field object.) Also added check for minimum table length for 6290193267Sjkimthis case. 6291129684Snjl 6292193267SjkimFix for multiple mutex acquisition. Restore original thread SyncLevel on 6293193267Sjkimmutex release. 6294129684Snjl 6295193267SjkimAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 6296129684Snjlconsistency with the other fields returned. 6297129684Snjl 6298193267SjkimShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such 6299193267Sjkimstructure for each GPE in the system, so the size of this structure is 6300193267Sjkimimportant. 6301129684Snjl 6302193267SjkimCPU stack requirement reduction: Cleaned up the method execution and object 6303193267Sjkimevaluation paths so that now a parameter structure is passed, instead of 6304193267Sjkimcopying the various method parameters over and over again. 6305129684Snjl 6306193267SjkimIn evregion.c: Correctly exit and reenter the interpreter region if and 6307193267Sjkimonly if dispatching an operation region request to a user-installed handler. 6308193267SjkimDo not exit/reenter when dispatching to a default handler (e.g., default 6309193267Sjkimsystem memory or I/O handlers) 6310129684Snjl 6311129684Snjl 6312193267SjkimNotes for updating drivers for the new GPE support. The following changes 6313193267Sjkimmust be made to ACPI-related device drivers that are attached to one or more 6314193267SjkimGPEs: (This information will be added to the ACPI CA Programmer Reference.) 6315129684Snjl 6316193267Sjkim1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must 6317193267Sjkimexplicitly call AcpiEnableGpe. 6318193267Sjkim2) There is a new interface called AcpiSetGpeType. This should be called 6319193267Sjkimbefore enabling the GPE. Also, this interface will automatically disable 6320193267Sjkimthe GPE if it is currently enabled. 6321129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 6322129684Snjl 6323129684SnjlSpecific drivers that must be changed: 6324129684Snjl1) EC driver: 6325193267Sjkim AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 6326129684SnjlAeGpeHandler, NULL); 6327129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 6328129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 6329129684Snjl 6330129684Snjl2) Button Drivers (Power, Lid, Sleep): 6331129684SnjlRun _PRW method under parent device 6332129684SnjlIf _PRW exists: /* This is a control-method button */ 6333129684Snjl Extract GPE number and possibly GpeDevice 6334129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 6335129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 6336129684Snjl 6337193267SjkimFor all other devices that have _PRWs, we automatically set the GPE type to 6338193267SjkimACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This 6339193267Sjkimmust be done on a selective basis, usually requiring some kind of user app 6340193267Sjkimto allow the user to pick the wake devices. 6341129684Snjl 6342129684Snjl 6343193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6344193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6345193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6346193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6347193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6348193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6349193267Sjkimthe compiler options used during generation. 6350129684Snjl 6351129684Snjl Previous Release: 6352129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 6353129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 6354129684Snjl Current Release: 6355167802Sjkim 6356129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6357129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 6358129684Snjl 6359129684Snjl 6360129684Snjl 6361129684Snjl---------------------------------------- 6362128212Snjl02 April 2004. Summary of changes for version 20040402: 6363128212Snjl 6364128212Snjl1) ACPI CA Core Subsystem: 6365128212Snjl 6366193267SjkimFixed an interpreter problem where an indirect store through an ArgX 6367193267Sjkimparameter was incorrectly applying the "implicit conversion rules" during 6368193267Sjkimthe store. From the ACPI specification: "If the target is a method local or 6369193267Sjkimargument (LocalX or ArgX), no conversion is performed and the result is 6370193267Sjkimstored directly to the target". The new behavior is to disable implicit 6371193267Sjkimconversion during ALL stores to an ArgX. 6372128212Snjl 6373193267SjkimChanged the behavior of the _PRW method scan to ignore any and all errors 6374193267Sjkimreturned by a given _PRW. This prevents the scan from aborting from the 6375193267Sjkimfailure of any single _PRW. 6376128212Snjl 6377193267SjkimMoved the runtime configuration parameters from the global init procedure to 6378193267Sjkimstatic variables in acglobal.h. This will allow the host to override the 6379193267Sjkimdefault values easily. 6380128212Snjl 6381193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6382193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6383193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6384193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6385193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6386193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6387193267Sjkimthe compiler options used during generation. 6388128212Snjl 6389128212Snjl Previous Release: 6390128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 6391128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 6392128212Snjl Current Release: 6393128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 6394128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 6395128212Snjl 6396128212Snjl 6397128212Snjl2) iASL Compiler/Disassembler: 6398128212Snjl 6399193267SjkimiASL now fully disassembles SSDTs. However, External() statements are not 6400193267Sjkimgenerated automatically for unresolved symbols at this time. This is a 6401193267Sjkimplanned feature for future implementation. 6402128212Snjl 6403193267SjkimFixed a scoping problem in the disassembler that occurs when the type of the 6404193267Sjkimtarget of a Scope() operator is overridden. This problem caused an 6405193267Sjkimincorrectly nested internal namespace to be constructed. 6406128212Snjl 6407193267SjkimAny warnings or errors that are emitted during disassembly are now commented 6408193267Sjkimout automatically so that the resulting file can be recompiled without any 6409193267Sjkimhand editing. 6410128212Snjl 6411128212Snjl---------------------------------------- 6412128212Snjl26 March 2004. Summary of changes for version 20040326: 6413128212Snjl 6414128212Snjl1) ACPI CA Core Subsystem: 6415128212Snjl 6416193267SjkimImplemented support for "wake" GPEs via interaction between GPEs and the 6417193267Sjkim_PRW methods. Every GPE that is pointed to by one or more _PRWs is 6418193267Sjkimidentified as a WAKE GPE and by default will no longer be enabled at 6419193267Sjkimruntime. Previously, we were blindly enabling all GPEs with a corresponding 6420193267Sjkim_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We 6421193267Sjkimbelieve this has been the cause of thousands of "spurious" GPEs on some 6422128212Snjlsystems. 6423128212Snjl 6424193267SjkimThis new GPE behavior is can be reverted to the original behavior (enable 6425193267SjkimALL GPEs at runtime) via a runtime flag. 6426128212Snjl 6427193267SjkimFixed a problem where aliased control methods could not access objects 6428193267Sjkimproperly. The proper scope within the namespace was not initialized 6429193267Sjkim(transferred to the target of the aliased method) before executing the 6430193267Sjkimtarget method. 6431128212Snjl 6432193267SjkimFixed a potential race condition on internal object deletion on the return 6433193267Sjkimobject in AcpiEvaluateObject. 6434128212Snjl 6435193267SjkimIntegrated a fix for resource descriptors where both _MEM and _MTP were 6436193267Sjkimbeing extracted instead of just _MEM. (i.e. bitmask was incorrectly too 6437193267Sjkimwide, 0x0F instead of 0x03.) 6438128212Snjl 6439193267SjkimAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a 6440193267Sjkimfault in some cases. 6441128212Snjl 6442128212SnjlUpdated Notify() values for debug statements in evmisc.c 6443128212Snjl 6444193267SjkimReturn proper status from AcpiUtMutexInitialize, not just simply AE_OK. 6445128212Snjl 6446193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6447193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6448193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6449193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6450193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6451193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6452193267Sjkimthe compiler options used during generation. 6453128212Snjl 6454128212Snjl Previous Release: 6455167802Sjkim 6456128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 6457128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 6458128212Snjl Current Release: 6459128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 6460128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 6461128212Snjl 6462128212Snjl---------------------------------------- 6463127175Snjl11 March 2004. Summary of changes for version 20040311: 6464127175Snjl 6465127175Snjl1) ACPI CA Core Subsystem: 6466127175Snjl 6467193267SjkimFixed a problem where errors occurring during the parse phase of control 6468193267Sjkimmethod execution did not abort cleanly. For example, objects created and 6469193267Sjkiminstalled in the namespace were not deleted. This caused all subsequent 6470193267Sjkiminvocations of the method to return the AE_ALREADY_EXISTS exception. 6471127175Snjl 6472193267SjkimImplemented a mechanism to force a control method to "Serialized" execution 6473193267Sjkimif the method attempts to create namespace objects. (The root of the 6474193267SjkimAE_ALREADY_EXISTS problem.) 6475127175Snjl 6476193267SjkimImplemented support for the predefined _OSI "internal" control method. 6477193267SjkimInitial supported strings are "Linux", "Windows 2000", "Windows 2001", and 6478193267Sjkim"Windows 2001.1", and can be easily upgraded for new strings as necessary. 6479193267SjkimThis feature will allow "other" operating systems to execute the fully 6480193267Sjkimtested, "Windows" code path through the ASL code 6481127175Snjl 6482193267SjkimGlobal Lock Support: Now allows multiple acquires and releases with any 6483193267Sjkiminternal thread. Removed concept of "owning thread" for this special mutex. 6484127175Snjl 6485193267SjkimFixed two functions that were inappropriately declaring large objects on the 6486193267SjkimCPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during 6487193267Sjkimmethod execution considerably. 6488127175Snjl 6489193267SjkimFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the 6490193267SjkimS4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT. 6491127175Snjl 6492193267SjkimFixed a problem where AcpiEvGpeDetect would fault if there were no GPEs 6493193267Sjkimdefined on the machine. 6494127175Snjl 6495193267SjkimImplemented two runtime options: One to force all control method execution 6496193267Sjkimto "Serialized" to mimic Windows behavior, another to disable _OSI support 6497193267Sjkimif it causes problems on a given machine. 6498127175Snjl 6499193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6500193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6501193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6502193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6503193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6504193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6505193267Sjkimthe compiler options used during generation. 6506127175Snjl 6507127175Snjl Previous Release: 6508127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6509127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6510127175Snjl Current Release: 6511127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 6512127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 6513127175Snjl 6514127175Snjl2) iASL Compiler/Disassembler: 6515127175Snjl 6516193267SjkimFixed an array size problem for FreeBSD that would cause the compiler to 6517193267Sjkimfault. 6518127175Snjl 6519127175Snjl---------------------------------------- 6520126372Snjl20 February 2004. Summary of changes for version 20040220: 6521126372Snjl 6522167802Sjkim 6523126372Snjl1) ACPI CA Core Subsystem: 6524126372Snjl 6525193267SjkimImplemented execution of _SxD methods for Device objects in the 6526126372SnjlGetObjectInfo interface. 6527126372Snjl 6528126372SnjlFixed calls to _SST method to pass the correct arguments. 6529126372Snjl 6530126372SnjlAdded a call to _SST on wake to restore to "working" state. 6531126372Snjl 6532193267SjkimCheck for End-Of-Buffer failure case in the WalkResources interface. 6533126372Snjl 6534193267SjkimIntegrated fix for 64-bit alignment issue in acglobal.h by moving two 6535193267Sjkimstructures to the beginning of the file. 6536126372Snjl 6537126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 6538126372Snjl 6539193267SjkimAfter wake, clear/enable power button. (Perhaps we should clear/enable all 6540193267Sjkimfixed events upon wake.) 6541126372Snjl 6542126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 6543126372Snjl 6544126372SnjlIntegrated latest acnetbsd.h file. 6545126372Snjl 6546126372Snjl---------------------------------------- 6547126372Snjl11 February 2004. Summary of changes for version 20040211: 6548126372Snjl 6549167802Sjkim 6550126372Snjl1) ACPI CA Core Subsystem: 6551126372Snjl 6552193267SjkimCompleted investigation and implementation of the call-by-reference 6553193267Sjkimmechanism for control method arguments. 6554126372Snjl 6555193267SjkimFixed a problem where a store of an object into an indexed package could 6556193267Sjkimfail if the store occurs within a different method than the method that 6557193267Sjkimcreated the package. 6558126372Snjl 6559193267SjkimFixed a problem where the ToDecimal operator could return incorrect results. 6560126372Snjl 6561193267SjkimFixed a problem where the CopyObject operator could fail on some of the more 6562193267Sjkimobscure objects (e.g., Reference objects.) 6563126372Snjl 6564193267SjkimImproved the output of the Debug object to display buffer, package, and 6565193267Sjkimindex objects. 6566126372Snjl 6567193267SjkimFixed a problem where constructs of the form "RefOf (ArgX)" did not return 6568193267Sjkimthe expected result. 6569126372Snjl 6570193267SjkimAdded permanent ACPI_REPORT_ERROR macros for all instances of the 6571126372SnjlACPI_AML_INTERNAL exception. 6572126372Snjl 6573126372SnjlIntegrated latest version of acfreebsd.h 6574126372Snjl 6575126372Snjl---------------------------------------- 6576126372Snjl16 January 2004. Summary of changes for version 20040116: 6577126372Snjl 6578193267SjkimThe purpose of this release is primarily to update the copyright years in 6579193267Sjkimeach module, thus causing a huge number of diffs. There are a few small 6580193267Sjkimfunctional changes, however. 6581126372Snjl 6582126372Snjl1) ACPI CA Core Subsystem: 6583126372Snjl 6584193267SjkimImproved error messages when there is a problem finding one or more of the 6585193267Sjkimrequired base ACPI tables 6586126372Snjl 6587126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 6588126372Snjl 6589126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 6590126372Snjl 6591126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 6592126372Snjl 6593126372Snjl2) iASL compiler 6594126372Snjl 6595193267SjkimFixed a problem introduced in December that disabled the correct disassembly 6596193267Sjkimof Resource Templates 6597126372Snjl 6598126372Snjl 6599126372Snjl---------------------------------------- 6600126372Snjl03 December 2003. Summary of changes for version 20031203: 6601126372Snjl 6602126372Snjl1) ACPI CA Core Subsystem: 6603126372Snjl 6604126372SnjlChanged the initialization of Operation Regions during subsystem 6605126372Snjlinit to perform two entire walks of the ACPI namespace; The first 6606126372Snjlto initialize the regions themselves, the second to execute the 6607126372Snjl_REG methods. This fixed some interdependencies across _REG 6608126372Snjlmethods found on some machines. 6609126372Snjl 6610126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 6611126372Snjlthe object reference count, and not create a new copy of the 6612126372Snjlobject if the Local1 is uninitialized. 6613126372Snjl 6614126372SnjlImplemented support for the _SST reserved method during sleep 6615126372Snjltransitions. 6616126372Snjl 6617126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 6618126372Snjlwaking up, this is apparently required by some machines. 6619126372Snjl 6620193267SjkimWhen sleeping, clear the wake status only if SleepState is not S5. 6621126372Snjl 6622126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 6623126372Snjlpointer arithmetic advanced a string pointer too far. 6624126372Snjl 6625126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 6626126372Snjlcould be returned if the requested table has not been loaded. 6627126372Snjl 6628193267SjkimWithin the support for IRQ resources, restructured the handling of 6629126372Snjlthe active and edge/level bits. 6630126372Snjl 6631126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 6632126372Snjlleaked under certain error conditions. 6633126372Snjl 6634126372SnjlImproved error messages for the cases where the ACPI mode could 6635126372Snjlnot be entered. 6636126372Snjl 6637126372SnjlCode and Data Size: Current and previous core subsystem library 6638126372Snjlsizes are shown below. These are the code and data sizes for the 6639126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6640126372Snjlthese values do not include any ACPI driver or OSPM code. The 6641126372Snjldebug version of the code includes the debug output trace 6642126372Snjlmechanism and has a much larger code and data size. Note that 6643193267Sjkimthese values will vary depending on the efficiency of the compiler 6644126372Snjland the compiler options used during generation. 6645126372Snjl 6646126372Snjl Previous Release (20031029): 6647126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6648126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6649126372Snjl Current Release: 6650126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6651126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6652126372Snjl 6653126372Snjl2) iASL Compiler/Disassembler: 6654126372Snjl 6655126372SnjlImplemented a fix for the iASL disassembler where a bad index was 6656126372Snjlgenerated. This was most noticeable on 64-bit platforms 6657126372Snjl 6658126372Snjl 6659126372Snjl---------------------------------------- 6660126372Snjl29 October 2003. Summary of changes for version 20031029: 6661126372Snjl 6662126372Snjl1) ACPI CA Core Subsystem: 6663126372Snjl 6664167802Sjkim 6665126372SnjlFixed a problem where a level-triggered GPE with an associated 6666126372Snjl_Lxx control method was incorrectly cleared twice. 6667126372Snjl 6668126372SnjlFixed a problem with the Field support code where an access can 6669126372Snjloccur beyond the end-of-region if the field is non-aligned but 6670126372Snjlextends to the very end of the parent region (resulted in an 6671126372SnjlAE_AML_REGION_LIMIT exception.) 6672126372Snjl 6673126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 6674193267Sjkimwould not get invoked on an RTC event. The RTC event bitmasks for 6675126372Snjlthe PM1 registers were not being initialized properly. 6676126372Snjl 6677126372SnjlImplemented support for executing _STA and _INI methods for 6678126372SnjlProcessor objects. Although this is currently not part of the 6679193267SjkimACPI specification, there is existing ASL code that depends on the 6680126372Snjlinit-time execution of these methods. 6681126372Snjl 6682126372SnjlImplemented and deployed a GetDescriptorName function to decode 6683126372Snjlthe various types of internal descriptors. Guards against null 6684126372Snjldescriptors during debug output also. 6685126372Snjl 6686126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 6687193267Sjkimcharacter namespace node name. This function simplifies the debug 6688193267Sjkimand error output, as well as guarding against null pointers during 6689126372Snjloutput. 6690126372Snjl 6691126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 6692126372Snjlsimplify the debug and error output of 64-bit integers. This 6693126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 6694126372Snjlintegers. 6695126372Snjl 6696126372SnjlUpdated the implementation of the Stall() operator to only call 6697126372SnjlAcpiOsStall(), and also return an error if the operand is larger 6698126372Snjlthan 255. This preserves the required behavior of not 6699126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 6700126372Snjlcalled for "long stalls". 6701126372Snjl 6702126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 6703126372Snjlinitialized are now treated as NOOPs. 6704126372Snjl 6705126372SnjlCleaned up a handful of warnings during 64-bit generation. 6706126372Snjl 6707126372SnjlFixed a reported error where and incorrect GPE number was passed 6708126372Snjlto the GPE dispatch handler. This value is only used for error 6709193267Sjkimoutput, however. Used this opportunity to clean up and streamline 6710126372Snjlthe GPE dispatch code. 6711126372Snjl 6712126372SnjlCode and Data Size: Current and previous core subsystem library 6713126372Snjlsizes are shown below. These are the code and data sizes for the 6714126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6715126372Snjlthese values do not include any ACPI driver or OSPM code. The 6716167802Sjkim 6717126372Snjldebug version of the code includes the debug output trace 6718126372Snjlmechanism and has a much larger code and data size. Note that 6719193267Sjkimthese values will vary depending on the efficiency of the compiler 6720126372Snjland the compiler options used during generation. 6721126372Snjl 6722126372Snjl Previous Release (20031002): 6723126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6724126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6725126372Snjl Current Release: 6726126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6727126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6728126372Snjl 6729126372Snjl 6730126372Snjl2) iASL Compiler/Disassembler: 6731126372Snjl 6732193267SjkimUpdated the iASL compiler to return an error if the operand to the 6733126372SnjlStall() operator is larger than 255. 6734126372Snjl 6735126372Snjl 6736126372Snjl---------------------------------------- 6737126372Snjl02 October 2003. Summary of changes for version 20031002: 6738126372Snjl 6739126372Snjl 6740126372Snjl1) ACPI CA Core Subsystem: 6741126372Snjl 6742126372SnjlFixed a problem with Index Fields where the index was not 6743126372Snjlincremented for fields that require multiple writes to the 6744126372Snjlindex/data registers (Fields that are wider than the data 6745126372Snjlregister.) 6746126372Snjl 6747126372SnjlFixed a problem with all Field objects where a write could go 6748126372Snjlbeyond the end-of-field if the field was larger than the access 6749193267Sjkimgranularity and therefore required multiple writes to complete the 6750126372Snjlrequest. An extra write beyond the end of the field could happen 6751126372Snjlinadvertently. 6752126372Snjl 6753126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 6754126372Snjlwould incorrectly be returned if the width of the Data Register 6755126372Snjlwas larger than the specified field access width. 6756126372Snjl 6757126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 6758126372Snjloperation. Implemented full support for the "DdbHandle" object 6759126372Snjlthroughout the ACPI CA subsystem. 6760126372Snjl 6761126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 6762126372SnjlCA header files. Even though these tables are not directly 6763126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 6764126372Snjldevice drivers. 6765126372Snjl 6766126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 6767126372Snjllist. This included checks for minimum descriptor length, and 6768126372Snjlsupport for trailing NULL strings within descriptors that have 6769126372Snjloptional string elements. 6770126372Snjl 6771126372SnjlCode and Data Size: Current and previous core subsystem library 6772126372Snjlsizes are shown below. These are the code and data sizes for the 6773126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6774126372Snjlthese values do not include any ACPI driver or OSPM code. The 6775126372Snjldebug version of the code includes the debug output trace 6776126372Snjlmechanism and has a much larger code and data size. Note that 6777193267Sjkimthese values will vary depending on the efficiency of the compiler 6778126372Snjland the compiler options used during generation. 6779126372Snjl 6780126372Snjl Previous Release (20030918): 6781126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6782126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6783126372Snjl Current Release: 6784126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6785126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6786126372Snjl 6787126372Snjl 6788126372Snjl2) iASL Compiler: 6789126372Snjl 6790126372SnjlImplemented detection of non-ASCII characters within the input 6791126372Snjlsource ASL file. This catches attempts to compile binary (AML) 6792126372Snjlfiles early in the compile, with an informative error message. 6793126372Snjl 6794126372SnjlFixed a problem where the disassembler would fault if the output 6795193267Sjkimfilename could not be generated or if the output file could not be 6796126372Snjlopened. 6797126372Snjl 6798126372Snjl---------------------------------------- 6799126372Snjl18 September 2003. Summary of changes for version 20030918: 6800126372Snjl 6801126372Snjl 6802126372Snjl1) ACPI CA Core Subsystem: 6803126372Snjl 6804126372SnjlFound and fixed a longstanding problem with the late execution of 6805126372Snjlthe various deferred AML opcodes (such as Operation Regions, 6806126372SnjlBuffer Fields, Buffers, and Packages). If the name string 6807126372Snjlspecified for the name of the new object placed the object in a 6808126372Snjlscope other than the current scope, the initialization/execution 6809126372Snjlof the opcode failed. The solution to this problem was to 6810126372Snjlimplement a mechanism where the late execution of such opcodes 6811126372Snjldoes not attempt to lookup/create the name a second time in an 6812126372Snjlincorrect scope. This fixes the "region size computed 6813126372Snjlincorrectly" problem. 6814126372Snjl 6815193267SjkimFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a 6816126372SnjlGlobal Lock AE_BAD_PARAMETER error. 6817126372Snjl 6818126372SnjlFixed several 64-bit issues with prototypes, casting and data 6819126372Snjltypes. 6820126372Snjl 6821126372SnjlRemoved duplicate prototype from acdisasm.h 6822126372Snjl 6823126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 6824126372Snjl 6825126372SnjlCode and Data Size: Current and previous core subsystem library 6826126372Snjlsizes are shown below. These are the code and data sizes for the 6827126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6828126372Snjlthese values do not include any ACPI driver or OSPM code. The 6829126372Snjldebug version of the code includes the debug output trace 6830126372Snjlmechanism and has a much larger code and data size. Note that 6831193267Sjkimthese values will vary depending on the efficiency of the compiler 6832126372Snjland the compiler options used during generation. 6833126372Snjl 6834126372Snjl Previous Release: 6835167802Sjkim 6836126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6837126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6838126372Snjl Current Release: 6839126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6840126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6841126372Snjl 6842126372Snjl 6843126372Snjl2) Linux: 6844126372Snjl 6845126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 6846126372Snjlcorrect sleep time in seconds. 6847126372Snjl 6848126372Snjl---------------------------------------- 6849126372Snjl14 July 2003. Summary of changes for version 20030619: 6850126372Snjl 6851126372Snjl1) ACPI CA Core Subsystem: 6852126372Snjl 6853126372SnjlParse SSDTs in order discovered, as opposed to reverse order 6854126372Snjl(Hrvoje Habjanic) 6855126372Snjl 6856126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 6857126372SnjlKlausner, 6858126372Snjl Nate Lawson) 6859126372Snjl 6860126372Snjl 6861126372Snjl2) Linux: 6862126372Snjl 6863126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 6864126372Snjl 6865126372Snjlproc function return value cleanups (Andi Kleen) 6866126372Snjl 6867126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 6868126372Snjl 6869126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 6870126372Snjl 6871126372Snjl 6872126372Snjl---------------------------------------- 6873117521Snjl19 June 2003. Summary of changes for version 20030619: 6874117521Snjl 6875117521Snjl1) ACPI CA Core Subsystem: 6876117521Snjl 6877193267SjkimFix To/FromBCD, eliminating the need for an arch-specific #define. 6878117521Snjl 6879117521SnjlDo not acquire a semaphore in the S5 shutdown path. 6880117521Snjl 6881117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 6882117521Snjl 6883117521SnjlFix sleep/stall code reversal. (Andi Kleen) 6884117521Snjl 6885117521SnjlRevert a change having to do with control method calling 6886117521Snjlsemantics. 6887117521Snjl 6888117521Snjl2) Linux: 6889117521Snjl 6890117521Snjlacpiphp update (Takayoshi Kochi) 6891117521Snjl 6892117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 6893117521Snjl 6894117521SnjlMention acpismp=force in config help 6895117521Snjl 6896117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 6897167802Sjkim 6898193267Sjkimcompatibility and also cleans up the code to a significant degree. 6899117521Snjl 6900117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 6901117521Snjl 6902117521Snjl---------------------------------------- 6903117521Snjl22 May 2003. Summary of changes for version 20030522: 6904117521Snjl 6905117521Snjl1) ACPI CA Core Subsystem: 6906117521Snjl 6907117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 6908117521Snjloccurred occasionally during _BST evaluation. This turned out to 6909117521Snjlbe an Owner ID allocation issue where a called method did not get 6910193267Sjkima new ID assigned to it. Eventually, (after 64k calls), the Owner 6911193267SjkimID UINT16 would wraparound so that the ID would be the same as the 6912126372Snjlcaller's and the called method would delete the caller's 6913117521Snjlnamespace. 6914117521Snjl 6915117521SnjlImplemented extended error reporting for control methods that are 6916117521Snjlaborted due to a run-time exception. Output includes the exact 6917193267SjkimAML instruction that caused the method abort, a dump of the method 6918126372Snjllocals and arguments at the time of the abort, and a trace of all 6919126372Snjlnested control method calls. 6920117521Snjl 6921117521SnjlModified the interpreter to allow the creation of buffers of zero 6922117521Snjllength from the AML code. Implemented new code to ensure that no 6923117521Snjlattempt is made to actually allocate a memory buffer (of length 6924193267Sjkimzero) - instead, a simple buffer object with a NULL buffer pointer 6925126372Snjland length zero is created. A warning is no longer issued when 6926126372Snjlthe AML attempts to create a zero-length buffer. 6927117521Snjl 6928117521SnjlImplemented a workaround for the "leading asterisk issue" in 6929117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 6930117521Snjlasterisk is automatically removed if present in any HID, UID, or 6931117521SnjlCID strings. The iASL compiler will still flag this asterisk as 6932117521Snjlan error, however. 6933117521Snjl 6934193267SjkimImplemented full support for _CID methods that return a package of 6935193267Sjkimmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface 6936126372Snjlnow additionally returns a device _CID list if present. This 6937126372Snjlrequired a change to the external interface in order to pass an 6938126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 6939117521Snjlvariable length. 6940117521Snjl 6941117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 6942117521Snjlhandler initialization code did not know about this exception. 6943117521Snjl 6944117521SnjlCode and Data Size: Current and previous core subsystem library 6945117521Snjlsizes are shown below. These are the code and data sizes for the 6946117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6947117521Snjlthese values do not include any ACPI driver or OSPM code. The 6948117521Snjldebug version of the code includes the debug output trace 6949117521Snjlmechanism and has a much larger code and data size. Note that 6950193267Sjkimthese values will vary depending on the efficiency of the compiler 6951126372Snjland the compiler options used during generation. 6952117521Snjl 6953117521Snjl Previous Release (20030509): 6954117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6955117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6956117521Snjl Current Release: 6957117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6958117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6959117521Snjl 6960117521Snjl 6961117521Snjl2) Linux: 6962117521Snjl 6963117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 6964193267Sjkimafter it was already working, thus disabling all ACPI and the IRQs 6965126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 6966117521SnjlJordet) 6967117521Snjl 6968117521SnjlToshiba driver update (John Belmonte) 6969117521Snjl 6970117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 6971117521SnjlMorton) 6972117521Snjl 6973117521Snjl 6974117521Snjl3) iASL Compiler: 6975117521Snjl 6976117521SnjlFixed a reported problem where multiple (nested) ElseIf() 6977117521Snjlstatements were not handled correctly by the compiler, resulting 6978117521Snjlin incorrect warnings and incorrect AML code. This was a problem 6979117521Snjlin both the ASL parser and the code generator. 6980117521Snjl 6981117521Snjl 6982117521Snjl4) Documentation: 6983117521Snjl 6984193267SjkimAdded changes to existing interfaces, new exception codes, and new 6985126372Snjltext concerning reference count object management versus garbage 6986126372Snjlcollection. 6987117521Snjl 6988117521Snjl---------------------------------------- 6989117521Snjl09 May 2003. Summary of changes for version 20030509. 6990117521Snjl 6991117521Snjl 6992117521Snjl1) ACPI CA Core Subsystem: 6993117521Snjl 6994117521SnjlChanged the subsystem initialization sequence to hold off 6995193267Sjkiminstallation of address space handlers until the hardware has been 6996193267Sjkiminitialized and the system has entered ACPI mode. This is because 6997126372Snjlthe installation of space handlers can cause _REG methods to be 6998193267Sjkimrun. Previously, the _REG methods could potentially be run before 6999126372SnjlACPI mode was enabled. 7000117521Snjl 7001193267SjkimFixed some memory leak issues related to address space handler and 7002126372Snjlnotify handler installation. There were some problems with the 7003126372Snjlreference count mechanism caused by the fact that the handler 7004117521Snjlobjects are shared across several namespace objects. 7005117521Snjl 7006117521SnjlFixed a reported problem where reference counts within the 7007117521Snjlnamespace were not properly updated when named objects created by 7008117521Snjlmethod execution were deleted. 7009117521Snjl 7010117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 7011117521Snjlissue during subsystem termination. Restructured the table data 7012117521Snjlstructures to simplify the linked lists and the related code. 7013117521Snjl 7014117521SnjlFixed a problem where the table ID associated with secondary 7015193267Sjkimtables (SSDTs) was not being propagated into the namespace objects 7016126372Snjlcreated by those tables. This would only present a problem for 7017126372Snjltables that are unloaded at run-time, however. 7018117521Snjl 7019117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 7020117521Snjltype as the length parameter (instead of UINT32). 7021117521Snjl 7022117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 7023117521Snjlappears on various systems. This problem could happen when there 7024117521Snjlare multiple PCI_Config operation regions under a single PCI root 7025117521Snjlbus. This doesn't happen very frequently, but there are some 7026117521Snjlsystems that do this in the ASL. 7027117521Snjl 7028117521SnjlFixed a reported problem where the internal DeleteNode function 7029117521Snjlwas incorrectly handling the case where a namespace node was the 7030117521Snjlfirst in the parent's child list, and had additional peers (not 7031117521Snjlthe only child, but first in the list of children.) 7032117521Snjl 7033193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7034126372Snjlbelow. These are the code and data sizes for the acpica.lib 7035126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7036126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7037126372Snjlversion of the code includes the debug output trace mechanism and 7038193267Sjkimhas a much larger code and data size. Note that these values will 7039126372Snjlvary depending on the efficiency of the compiler and the compiler 7040126372Snjloptions used during generation. 7041117521Snjl 7042117521Snjl Previous Release 7043117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 7044117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 7045117521Snjl Current Release: 7046117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 7047117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 7048117521Snjl 7049117521Snjl 7050117521Snjl2) Linux: 7051117521Snjl 7052117521SnjlAllow ":" in OS override string (Ducrot Bruno) 7053117521Snjl 7054117521SnjlKobject fix (Greg KH) 7055117521Snjl 7056117521Snjl 7057117521Snjl3 iASL Compiler/Disassembler: 7058117521Snjl 7059117521SnjlFixed a problem in the generation of the C source code files (AML 7060117521Snjlis emitted in C source statements for BIOS inclusion) where the 7061193267SjkimAscii dump that appears within a C comment at the end of each line 7062126372Snjlcould cause a compile time error if the AML sequence happens to 7063126372Snjlhave an open comment or close comment sequence embedded. 7064117521Snjl 7065117521Snjl 7066117521Snjl---------------------------------------- 7067117521Snjl24 April 2003. Summary of changes for version 20030424. 7068117521Snjl 7069117521Snjl 7070117521Snjl1) ACPI CA Core Subsystem: 7071117521Snjl 7072117521SnjlSupport for big-endian systems has been implemented. Most of the 7073193267Sjkimsupport has been invisibly added behind big-endian versions of the 7074126372SnjlACPI_MOVE_* macros. 7075117521Snjl 7076117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 7077117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 7078117521Snjllow level hardware write routine. The offset parameter was 7079193267Sjkimactually eliminated from the low level read/write routines because 7080126372Snjlthey had become obsolete. 7081117521Snjl 7082117521SnjlFixed a problem where a handler object was deleted twice during 7083117521Snjlthe removal of a fixed event handler. 7084117521Snjl 7085117521Snjl 7086117521Snjl2) Linux: 7087117521Snjl 7088117521SnjlA fix for SMP systems with link devices was contributed by 7089167802Sjkim 7090117521SnjlCompaq's Dan Zink. 7091117521Snjl 7092117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 7093193267Sjkim(Linux ISRs no longer return void, so we can propagate the handler 7094126372Snjlreturn value from the ACPI CA core back to the OS.) 7095117521Snjl 7096117521Snjl 7097167802Sjkim 7098117521Snjl3) Documentation: 7099117521Snjl 7100117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 7101117521Snjlinterfaces and changes to existing interfaces. 7102117521Snjl 7103117521Snjl---------------------------------------- 7104117521Snjl28 March 2003. Summary of changes for version 20030328. 7105117521Snjl 7106117521Snjl1) ACPI CA Core Subsystem: 7107117521Snjl 7108117521SnjlThe GPE Block Device support has been completed. New interfaces 7109117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 7110117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 7111117521Snjlinto separate interfaces for Fixed Events and General Purpose 7112117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 7113117521Snjl 7114117521SnjlFixed a problem where the error message "Failed to acquire 7115117521Snjlsemaphore" would appear during operations on the embedded 7116117521Snjlcontroller (EC). 7117117521Snjl 7118193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7119126372Snjlbelow. These are the code and data sizes for the acpica.lib 7120126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7121126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7122126372Snjlversion of the code includes the debug output trace mechanism and 7123193267Sjkimhas a much larger code and data size. Note that these values will 7124126372Snjlvary depending on the efficiency of the compiler and the compiler 7125126372Snjloptions used during generation. 7126117521Snjl 7127117521Snjl Previous Release 7128117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 7129117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 7130117521Snjl Current Release: 7131117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 7132117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 7133117521Snjl 7134117521Snjl 7135117521Snjl---------------------------------------- 7136114237Snjl28 February 2003. Summary of changes for version 20030228. 7137114237Snjl 7138114237Snjl 7139114237Snjl1) ACPI CA Core Subsystem: 7140114237Snjl 7141114237SnjlThe GPE handling and dispatch code has been completely overhauled 7142114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 7143114237SnjlThis affects internal data structures and code only; there should 7144114237Snjlbe no differences visible externally. One new file has been 7145114237Snjladded, evgpeblk.c 7146114237Snjl 7147114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 7148114237Snjlfields that are used to determine the GPE block lengths. The 7149114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 7150193267Sjkimstructures are ignored. This is per the ACPI specification but it 7151126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 7152193267Sjkim(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128). 7153114237Snjl 7154114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 7155114237Snjlregister to look at the SCI_EN bit. On some machines, this read 7156114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 7157114237Snjlin fact be the cause of slow battery status response on some 7158114237Snjlsystems.) 7159114237Snjl 7160193267SjkimFixed a problem where a store of a NULL string to a package object 7161126372Snjlcould cause the premature deletion of the object. This was seen 7162126372Snjlduring execution of the battery _BIF method on some systems, 7163126372Snjlresulting in no battery data being returned. 7164114237Snjl 7165114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 7166114237Snjllists. 7167114237Snjl 7168193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7169126372Snjlbelow. These are the code and data sizes for the acpica.lib 7170126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7171126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7172126372Snjlversion of the code includes the debug output trace mechanism and 7173193267Sjkimhas a much larger code and data size. Note that these values will 7174126372Snjlvary depending on the efficiency of the compiler and the compiler 7175126372Snjloptions used during generation. 7176114237Snjl 7177114237Snjl Previous Release 7178114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7179114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7180114237Snjl Current Release: 7181114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 7182114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 7183114237Snjl 7184114237Snjl 7185114237Snjl2) Linux 7186114237Snjl 7187114237SnjlS3 fixes (Ole Rohne) 7188114237Snjl 7189114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 7190114237Snjl(Bjorn Helgaas) 7191114237Snjl 7192114237SnjlAdd S4BIOS support (Pavel Machek) 7193114237Snjl 7194114237SnjlMap in entire table before performing checksum (John Stultz) 7195114237Snjl 7196193267SjkimExpand the mem= cmdline to allow the specification of reserved and 7197126372SnjlACPI DATA blocks (Pavel Machek) 7198114237Snjl 7199114237SnjlNever use ACPI on VISWS 7200114237Snjl 7201114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 7202114237Snjl 7203114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 7204114237Snjlcausing us to think that some systems support C2 when they really 7205114237Snjldon't. 7206114237Snjl 7207114237SnjlDo not count processor objects for non-present CPUs (Thanks to 7208114237SnjlDominik Brodowski) 7209114237Snjl 7210114237Snjl 7211114237Snjl3) iASL Compiler: 7212114237Snjl 7213114237SnjlFixed a problem where ASL include files could not be found and 7214114237Snjlopened. 7215114237Snjl 7216114237SnjlAdded support for the _PDC reserved name. 7217114237Snjl 7218114237Snjl 7219117521Snjl---------------------------------------- 7220114237Snjl22 January 2003. Summary of changes for version 20030122. 7221114237Snjl 7222114237Snjl 7223114237Snjl1) ACPI CA Core Subsystem: 7224114237Snjl 7225114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 7226114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 7227193267Sjkimprogrammers believe that this is a NOOP. Since this store doesn't 7228126372Snjldo anything anyway, the new prototype behavior will ignore this 7229126372Snjlerror. This is a case where we can relax the strict checking in 7230126372Snjlthe interpreter in the name of compatibility. 7231114237Snjl 7232114237Snjl 7233114237Snjl2) Linux 7234114237Snjl 7235114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 7236114237SnjlLinux package for the first time. This is the utility that is 7237193267Sjkimused to convert the ACPI CA base source code to the Linux version. 7238114237Snjl 7239114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 7240114237Snjl 7241114237Snjl(Both) Move more headers to include/acpi, and delete an unused 7242114237Snjlheader. 7243114237Snjl 7244114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 7245114237Snjl 7246114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 7247114237Snjl 7248114237Snjl(Both) Remove include of unused header (Adrian Bunk) 7249114237Snjl 7250114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 7251114237Snjlthe 7252193267Sjkimformer now also includes the latter, acpiphp.h only needs the one, 7253126372Snjlnow. 7254114237Snjl 7255193267Sjkim(2.5) Make it possible to select method of bios restoring after S3 7256114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 7257114237Snjl 7258114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 7259114237Snjl 7260114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 7261114237Snjl 7262114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 7263114237Snjl(Dominik Brodowski) 7264114237Snjl 7265114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 7266114237Snjl 7267114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 7268114237SnjlVisinoni) 7269114237Snjl 7270114237Snjl 7271114237Snjl3) iASL Compiler: 7272114237Snjl 7273114237SnjlAdded support to disassemble SSDT and PSDTs. 7274114237Snjl 7275114237SnjlImplemented support to obtain SSDTs from the Windows registry if 7276114237Snjlavailable. 7277114237Snjl 7278114237Snjl 7279102550Siwasaki---------------------------------------- 7280114237Snjl09 January 2003. Summary of changes for version 20030109. 7281114237Snjl 7282114237Snjl1) ACPI CA Core Subsystem: 7283114237Snjl 7284114237SnjlChanged the behavior of the internal Buffer-to-String conversion 7285193267Sjkimfunction. The current ACPI specification states that the contents 7286126372Snjlof the buffer are "converted to a string of two-character 7287126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 7288193267Sjkimthis definition is not backwards compatible with existing ACPI 1.0 7289193267Sjkimimplementations (although the behavior was not defined in the ACPI 7290126372Snjl1.0 specification). The new behavior simply copies data from the 7291193267Sjkimbuffer to the string until a null character is found or the end of 7292126372Snjlthe buffer is reached. The new String object is always null 7293126372Snjlterminated. This problem was seen during the generation of _BIF 7294126372Snjlbattery data where incorrect strings were returned for battery 7295126372Snjltype, etc. This will also require an errata to the ACPI 7296126372Snjlspecification. 7297114237Snjl 7298114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 7299114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 7300114237Snjl 7301114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 7302114237Snjlupdated to 2003. 7303114237Snjl 7304193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7305126372Snjlbelow. These are the code and data sizes for the acpica.lib 7306126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7307126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7308126372Snjlversion of the code includes the debug output trace mechanism and 7309193267Sjkimhas a much larger code and data size. Note that these values will 7310126372Snjlvary depending on the efficiency of the compiler and the compiler 7311126372Snjloptions used during generation. 7312114237Snjl 7313114237Snjl Previous Release 7314114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7315114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7316114237Snjl Current Release: 7317114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7318114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7319114237Snjl 7320114237Snjl 7321114237Snjl2) Linux 7322114237Snjl 7323114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 7324114237Snjl 7325114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 7326114237Snjl 7327114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 7328114237Snjl 7329114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 7330114237Snjl 7331114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 7332114237Snjlof schedule_work() 7333114237Snjl 7334114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 7335114237Snjl 7336114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 7337114237Snjl 7338114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 7339114237Snjl 7340114237SnjlSeveral changes have been made to the source code translation 7341114237Snjlutility that generates the Linux Code in order to make the code 7342114237Snjlmore "Linux-like": 7343114237Snjl 7344114237SnjlAll typedefs on structs and unions have been removed in keeping 7345114237Snjlwith the Linux coding style. 7346114237Snjl 7347114237SnjlRemoved the non-Linux SourceSafe module revision number from each 7348114237Snjlmodule header. 7349114237Snjl 7350114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 7351114237SnjlDoubled the number of symbols that are lowercased. 7352114237Snjl 7353114237SnjlFixed a problem where identifiers within procedure headers and 7354114237Snjlwithin quotes were not fully lower cased (they were left with a 7355114237Snjlstarting capital.) 7356114237Snjl 7357114237SnjlSome C macros whose only purpose is to allow the generation of 16- 7358114237Snjlbit code are now completely removed in the Linux code, increasing 7359114237Snjlreadability and maintainability. 7360114237Snjl 7361114237Snjl---------------------------------------- 7362114237Snjl 7363114237Snjl12 December 2002. Summary of changes for version 20021212. 7364114237Snjl 7365114237Snjl 7366114237Snjl1) ACPI CA Core Subsystem: 7367114237Snjl 7368114237SnjlFixed a problem where the creation of a zero-length AML Buffer 7369114237Snjlwould cause a fault. 7370114237Snjl 7371193267SjkimFixed a problem where a Buffer object that pointed to a static AML 7372126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 7373126372Snjlmemory corruption. 7374114237Snjl 7375114237SnjlFixed a problem where a user buffer (passed in to the external 7376114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 7377114237Snjlsmall to complete the operation, causing memory corruption. 7378114237Snjl 7379114237SnjlFixed a problem in the Buffer-to-String conversion code where a 7380114237Snjlstring of length one was always returned, regardless of the size 7381114237Snjlof the input Buffer object. 7382114237Snjl 7383114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 7384114237Snjllack of need and lack of consistent use. 7385114237Snjl 7386193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7387126372Snjlbelow. These are the code and data sizes for the acpica.lib 7388126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7389126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7390126372Snjlversion of the code includes the debug output trace mechanism and 7391193267Sjkimhas a much larger code and data size. Note that these values will 7392126372Snjlvary depending on the efficiency of the compiler and the compiler 7393126372Snjloptions used during generation. 7394114237Snjl 7395114237Snjl Previous Release 7396114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 7397114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 7398114237Snjl Current Release: 7399114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7400114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7401114237Snjl 7402114237Snjl 7403114237Snjl---------------------------------------- 7404114237Snjl05 December 2002. Summary of changes for version 20021205. 7405114237Snjl 7406114237Snjl1) ACPI CA Core Subsystem: 7407114237Snjl 7408114237SnjlFixed a problem where a store to a String or Buffer object could 7409114237Snjlcause corruption of the DSDT if the object type being stored was 7410114237Snjlthe same as the target object type and the length of the object 7411114237Snjlbeing stored was equal to or smaller than the original (existing) 7412114237Snjltarget object. This was seen to cause corruption of battery _BIF 7413114237Snjlbuffers if the _BIF method modified the buffer on the fly. 7414114237Snjl 7415193267SjkimFixed a problem where an internal error was generated if a control 7416126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 7417126372SnjlPackage declaration. This was caused by the deferred parsing of 7418126372Snjlthe control method and thus the deferred creation of the internal 7419126372Snjlmethod object. The solution to this problem was to create the 7420126372Snjlinternal method object at the moment the method is encountered in 7421126372Snjlthe first pass - so that subsequent references to the method will 7422126372Snjlable to obtain the required parameter count and thus properly 7423126372Snjlparse the method invocation. This problem presented itself as an 7424126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 7425114237Snjl 7426114237SnjlFixed a problem where the internal String object copy routine did 7427193267Sjkimnot always allocate sufficient memory for the target String object 7428126372Snjland caused memory corruption. This problem was seen to cause 7429126372Snjl"Allocation already present in list!" errors as memory allocation 7430126372Snjlbecame corrupted. 7431114237Snjl 7432193267SjkimImplemented a new function for the evaluation of namespace objects 7433126372Snjlthat allows the specification of the allowable return object 7434126372Snjltypes. This simplifies a lot of code that checks for a return 7435126372Snjlobject of one or more specific objects returned from the 7436114237Snjlevaluation (such as _STA, etc.) This may become and external 7437114237Snjlfunction if it would be useful to ACPI-related drivers. 7438114237Snjl 7439114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 7440114237Snjlclarity. 7441114237Snjl 7442114237SnjlCompleted additional code restructuring to allow more modular 7443114237Snjllinking for iASL compiler and AcpiExec. Several files were split 7444114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 7445114237Snjl 7446114237SnjlImplemented an abort mechanism to terminate an executing control 7447193267Sjkimmethod via the AML debugger. This feature is useful for debugging 7448126372Snjlcontrol methods that depend (wait) for specific hardware 7449126372Snjlresponses. 7450114237Snjl 7451193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7452126372Snjlbelow. These are the code and data sizes for the acpica.lib 7453126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7454126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7455126372Snjlversion of the code includes the debug output trace mechanism and 7456193267Sjkimhas a much larger code and data size. Note that these values will 7457126372Snjlvary depending on the efficiency of the compiler and the compiler 7458126372Snjloptions used during generation. 7459114237Snjl 7460114237Snjl Previous Release 7461114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7462114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 7463114237Snjl Current Release: 7464114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 7465114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 7466114237Snjl 7467114237Snjl 7468114237Snjl2) iASL Compiler/Disassembler 7469114237Snjl 7470114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 7471114237SnjlDescriptors. If specified in the ASL, the optional "Resource 7472114237SnjlSource Index" and "Resource Source" fields were not inserted into 7473114237Snjlthe correct location within the AML resource descriptor, creating 7474114237Snjlan invalid descriptor. 7475114237Snjl 7476193267SjkimFixed a disassembler problem for "Interrupt" resource descriptors. 7477126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 7478126372Snjlwere ignored. 7479114237Snjl 7480114237Snjl 7481114237Snjl---------------------------------------- 7482114237Snjl22 November 2002. Summary of changes for version 20021122. 7483114237Snjl 7484114237Snjl 7485114237Snjl1) ACPI CA Core Subsystem: 7486114237Snjl 7487114237SnjlFixed a reported problem where an object stored to a Method Local 7488114237Snjlor Arg was not copied to a new object during the store - the 7489114237Snjlobject pointer was simply copied to the Local/Arg. This caused 7490114237Snjlall subsequent operations on the Local/Arg to also affect the 7491114237Snjloriginal source of the store operation. 7492114237Snjl 7493114237SnjlFixed a problem where a store operation to a Method Local or Arg 7494114237Snjlwas not completed properly if the Local/Arg contained a reference 7495114237Snjl(from RefOf) to a named field. The general-purpose store-to- 7496114237Snjlnamespace-node code is now used so that this case is handled 7497114237Snjlautomatically. 7498114237Snjl 7499193267SjkimFixed a problem where the internal object copy routine would cause 7500126372Snjla protection fault if the object being copied was a Package and 7501126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 7502114237Snjlpackage. 7503114237Snjl 7504114237SnjlFixed a problem with the GPE initialization that resulted from an 7505114237Snjlambiguity in the ACPI specification. One section of the 7506114237Snjlspecification states that both the address and length of the GPE 7507193267Sjkimblock must be zero if the block is not supported. Another section 7508126372Snjlimplies that only the address need be zero if the block is not 7509193267Sjkimsupported. The code has been changed so that both the address and 7510126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 7511126372Snjlif either the address or the length is zero, the GPE block is 7512126372Snjlinvalid.) 7513114237Snjl 7514193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7515126372Snjlbelow. These are the code and data sizes for the acpica.lib 7516126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7517126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7518126372Snjlversion of the code includes the debug output trace mechanism and 7519193267Sjkimhas a much larger code and data size. Note that these values will 7520126372Snjlvary depending on the efficiency of the compiler and the compiler 7521126372Snjloptions used during generation. 7522114237Snjl 7523114237Snjl Previous Release 7524114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7525114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7526114237Snjl Current Release: 7527114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7528114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 7529114237Snjl 7530114237Snjl 7531114237Snjl2) Linux 7532114237Snjl 7533114237SnjlCleaned up EC driver. Exported an external EC read/write 7534114237Snjlinterface. By going through this, other drivers (most notably 7535114237Snjlsonypi) will be able to serialize access to the EC. 7536114237Snjl 7537114237Snjl 7538114237Snjl3) iASL Compiler/Disassembler 7539114237Snjl 7540114237SnjlImplemented support to optionally generate include files for both 7541114237SnjlASM and C (the -i switch). This simplifies BIOS development by 7542114237Snjlautomatically creating include files that contain external 7543114237Snjldeclarations for the symbols that are created within the 7544167802Sjkim 7545114237Snjl(optionally generated) ASM and C AML source files. 7546114237Snjl 7547114237Snjl 7548114237Snjl---------------------------------------- 7549107325Siwasaki15 November 2002. Summary of changes for version 20021115. 7550104470Siwasaki 7551107325Siwasaki1) ACPI CA Core Subsystem: 7552107325Siwasaki 7553114237SnjlFixed a memory leak problem where an error during resolution of 7554167802Sjkim 7555114237Snjlmethod arguments during a method invocation from another method 7556114237Snjlfailed to cleanup properly by deleting all successfully resolved 7557114237Snjlargument objects. 7558107325Siwasaki 7559114237SnjlFixed a problem where the target of the Index() operator was not 7560114237Snjlcorrectly constructed if the source object was a package. This 7561114237Snjlproblem has not been detected because the use of a target operand 7562114237Snjlwith Index() is very rare. 7563107325Siwasaki 7564107325SiwasakiFixed a problem with the Index() operator where an attempt was 7565107325Siwasakimade to delete the operand objects twice. 7566107325Siwasaki 7567107325SiwasakiFixed a problem where an attempt was made to delete an operand 7568114237Snjltwice during execution of the CondRefOf() operator if the target 7569114237Snjldid not exist. 7570107325Siwasaki 7571114237SnjlImplemented the first of perhaps several internal create object 7572193267Sjkimfunctions that create and initialize a specific object type. This 7573126372Snjlconsolidates duplicated code wherever the object is created, thus 7574126372Snjlshrinking the size of the subsystem. 7575107325Siwasaki 7576114237SnjlImplemented improved debug/error messages for errors that occur 7577114237Snjlduring nested method invocations. All executing method pathnames 7578193267Sjkimare displayed (with the error) as the call stack is unwound - thus 7579126372Snjlsimplifying debug. 7580107325Siwasaki 7581107325SiwasakiFixed a problem introduced in the 10/02 release that caused 7582114237Snjlpremature deletion of a buffer object if a buffer was used as an 7583114237SnjlASL operand where an integer operand is required (Thus causing an 7584193267Sjkimimplicit object conversion from Buffer to Integer.) The change in 7585126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 7586114237Snjlincorrectly.) 7587107325Siwasaki 7588193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7589126372Snjlbelow. These are the code and data sizes for the acpica.lib 7590126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7591126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7592126372Snjlversion of the code includes the debug output trace mechanism and 7593193267Sjkimhas a much larger code and data size. Note that these values will 7594126372Snjlvary depending on the efficiency of the compiler and the compiler 7595126372Snjloptions used during generation. 7596107325Siwasaki 7597107325Siwasaki Previous Release 7598107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7599107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7600107325Siwasaki Current Release: 7601107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7602107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7603107325Siwasaki 7604107325Siwasaki 7605107325Siwasaki2) Linux 7606107325Siwasaki 7607114237SnjlChanged the implementation of the ACPI semaphores to use down() 7608114237Snjlinstead of down_interruptable(). It is important that the 7609114237Snjlexecution of ACPI control methods not be interrupted by signals. 7610114237SnjlMethods must run to completion, or the system may be left in an 7611114237Snjlunknown/unstable state. 7612107325Siwasaki 7613193267SjkimFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set. 7614126372Snjl(Shawn Starr) 7615107325Siwasaki 7616107325Siwasaki 7617107325Siwasaki3) iASL Compiler/Disassembler 7618107325Siwasaki 7619107325Siwasaki 7620114237SnjlChanged the default location of output files. All output files 7621114237Snjlare now placed in the current directory by default instead of in 7622114237Snjlthe directory of the source file. This change may affect some 7623114237Snjlexisting makefiles, but it brings the behavior of the compiler in 7624114237Snjlline with other similar tools. The location of the output files 7625114237Snjlcan be overridden with the -p command line switch. 7626107325Siwasaki 7627114237Snjl 7628107325Siwasaki---------------------------------------- 7629107325Siwasaki11 November 2002. Summary of changes for version 20021111. 7630107325Siwasaki 7631107325Siwasaki 7632114237Snjl0) ACPI Specification 2.0B is released and is now available at: 7633114237Snjlhttp://www.acpi.info/index.html 7634107325Siwasaki 7635107325Siwasaki 7636107325Siwasaki1) ACPI CA Core Subsystem: 7637107325Siwasaki 7638107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 7639114237SnjlThis includes the early detection and handoff of the request to 7640114237Snjlthe SMBus region handler (avoiding all of the complex field 7641107325Siwasakisupport code), and support for the bidirectional return packet 7642107325Siwasakifrom an SMBus write operation. This paves the way for the 7643107325Siwasakidevelopment of SMBus drivers in each host operating system. 7644107325Siwasaki 7645107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 7646107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 7647107325Siwasakispecification. This had the side effect of causing ASL 7648107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 7649107325Siwasakiforever. Changed all internal references to the ACPI timeout 7650193267Sjkimparameter to 16 bits to prevent future problems. Changed the name 7651126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 7652107325Siwasaki 7653193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7654126372Snjlbelow. These are the code and data sizes for the acpica.lib 7655126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7656126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7657126372Snjlversion of the code includes the debug output trace mechanism and 7658193267Sjkimhas a much larger code and data size. Note that these values will 7659126372Snjlvary depending on the efficiency of the compiler and the compiler 7660126372Snjloptions used during generation. 7661107325Siwasaki 7662107325Siwasaki Previous Release 7663107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7664107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7665107325Siwasaki Current Release: 7666107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7667107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7668107325Siwasaki 7669107325Siwasaki 7670107325Siwasaki2) Linux 7671107325Siwasaki 7672107325SiwasakiModule loading/unloading fixes (John Cagle) 7673107325Siwasaki 7674107325Siwasaki 7675107325Siwasaki3) iASL Compiler/Disassembler 7676107325Siwasaki 7677107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 7678107325Siwasaki 7679107325SiwasakiImplemented support for the disassembly of all SMBus protocol 7680107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 7681107325Siwasaki 7682107325Siwasaki---------------------------------------- 7683107325Siwasaki01 November 2002. Summary of changes for version 20021101. 7684107325Siwasaki 7685107325Siwasaki 7686107325Siwasaki1) ACPI CA Core Subsystem: 7687107325Siwasaki 7688193267SjkimFixed a problem where platforms that have a GPE1 block but no GPE0 7689126372Snjlblock were not handled correctly. This resulted in a "GPE 7690114237Snjloverlap" error message. GPE0 is no longer required. 7691107325Siwasaki 7692107325SiwasakiRemoved code added in the previous release that inserted nodes 7693114237Snjlinto the namespace in alphabetical order. This caused some side- 7694114237Snjleffects on various machines. The root cause of the problem is 7695114237Snjlstill under investigation since in theory, the internal ordering 7696114237Snjlof the namespace nodes should not matter. 7697107325Siwasaki 7698107325Siwasaki 7699114237SnjlEnhanced error reporting for the case where a named object is not 7700114237Snjlfound during control method execution. The full ACPI namepath 7701114237Snjl(name reference) of the object that was not found is displayed in 7702114237Snjlthis case. 7703107325Siwasaki 7704193267SjkimNote: as a result of the overhaul of the namespace object types in 7705126372Snjlthe previous release, the namespace nodes for the predefined 7706114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 7707114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 7708114237Snjlmanagement code but may affect code that walks the namespace tree 7709114237Snjllooking for specific object types. 7710114237Snjl 7711193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7712126372Snjlbelow. These are the code and data sizes for the acpica.lib 7713126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7714126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7715126372Snjlversion of the code includes the debug output trace mechanism and 7716193267Sjkimhas a much larger code and data size. Note that these values will 7717126372Snjlvary depending on the efficiency of the compiler and the compiler 7718126372Snjloptions used during generation. 7719107325Siwasaki 7720107325Siwasaki Previous Release 7721107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7722107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7723107325Siwasaki Current Release: 7724107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7725107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7726107325Siwasaki 7727107325Siwasaki 7728107325Siwasaki2) Linux 7729107325Siwasaki 7730107325SiwasakiFixed a problem introduced in the previous release where the 7731193267SjkimProcessor and Thermal objects were not recognized and installed in 7732193267Sjkim/proc. This was related to the scope type change described above. 7733107325Siwasaki 7734107325Siwasaki 7735107325Siwasaki3) iASL Compiler/Disassembler 7736107325Siwasaki 7737114237SnjlImplemented the -g option to get all of the required ACPI tables 7738114237Snjlfrom the registry and save them to files (Windows version of the 7739193267Sjkimcompiler only.) The required tables are the FADT, FACS, and DSDT. 7740107325Siwasaki 7741114237SnjlAdded ACPI table checksum validation during table disassembly in 7742114237Snjlorder to catch corrupted tables. 7743107325Siwasaki 7744107325Siwasaki 7745107325Siwasaki---------------------------------------- 7746107325Siwasaki22 October 2002. Summary of changes for version 20021022. 7747107325Siwasaki 7748107325Siwasaki1) ACPI CA Core Subsystem: 7749107325Siwasaki 7750114237SnjlImplemented a restriction on the Scope operator that the target 7751114237Snjlmust already exist in the namespace at the time the operator is 7752114237Snjlencountered (during table load or method execution). In other 7753114237Snjlwords, forward references are not allowed and Scope() cannot 7754114237Snjlcreate a new object. This changes the previous behavior where the 7755193267Sjkiminterpreter would create the name if not found. This new behavior 7756126372Snjlcorrectly enables the search-to-root algorithm during namespace 7757126372Snjllookup of the target name. Because of this upsearch, this fixes 7758126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 7759126372Snjlinterpreter and iASL compiler compatible with other ACPI 7760114237Snjlimplementations. 7761107325Siwasaki 7762114237SnjlCompleted a major overhaul of the internal ACPI object types for 7763114237Snjlthe ACPI Namespace and the associated operand objects. Many of 7764114237Snjlthese types had become obsolete with the introduction of the two- 7765114237Snjlpass namespace load. This cleanup simplifies the code and makes 7766114237Snjlthe entire namespace load mechanism much clearer and easier to 7767114237Snjlunderstand. 7768107325Siwasaki 7769114237SnjlImproved debug output for tracking scope opening/closing to help 7770114237Snjldiagnose scoping issues. The old scope name as well as the new 7771114237Snjlscope name are displayed. Also improved error messages for 7772114237Snjlproblems with ASL Mutex objects and error messages for GPE 7773114237Snjlproblems. 7774107325Siwasaki 7775107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 7776107325Siwasaki 7777114237SnjlAll string output (for all namespace/object dumps) now uses the 7778193267Sjkimcommon ACPI string output procedure which handles escapes properly 7779126372Snjland does not emit non-printable characters. 7780107325Siwasaki 7781107325SiwasakiFixed some issues with constants in the 64-bit version of the 7782107325Siwasakilocal C library (utclib.c) 7783107325Siwasaki 7784107325Siwasaki 7785107325Siwasaki2) Linux 7786107325Siwasaki 7787107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 7788107325Siwasakiinterrupt level. 7789107325Siwasaki 7790107325Siwasaki 7791107325Siwasaki3) iASL Compiler/Disassembler 7792107325Siwasaki 7793193267SjkimImplemented ACPI 2.0B grammar change that disallows all Type 1 and 7794126372Snjl2 opcodes outside of a control method. This means that the 7795114237Snjl"executable" operators (versus the "namespace" operators) cannot 7796193267Sjkimbe used at the table level; they can only be used within a control 7797126372Snjlmethod. 7798107325Siwasaki 7799107325SiwasakiImplemented the restriction on the Scope() operator where the 7800107325Siwasakitarget must already exist in the namespace at the time the 7801114237Snjloperator is encountered (during ASL compilation). In other words, 7802193267Sjkimforward references are not allowed and Scope() cannot create a new 7803126372Snjlobject. This makes the iASL compiler compatible with other ACPI 7804193267Sjkimimplementations and makes the Scope() implementation adhere to the 7805126372SnjlACPI specification. 7806107325Siwasaki 7807193267SjkimFixed a problem where namepath optimization for the Alias operator 7808193267Sjkimwas optimizing the wrong path (of the two namepaths.) This caused 7809126372Snjla "Missing alias link" error message. 7810107325Siwasaki 7811114237SnjlFixed a problem where an "unknown reserved name" warning could be 7812114237Snjlincorrectly generated for names like "_SB" when the trailing 7813114237Snjlunderscore is not used in the original ASL. 7814107325Siwasaki 7815107325SiwasakiFixed a problem where the reserved name check did not handle 7816114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 7817114237Snjlthe NamePath was examined instead of the last NameSeg. 7818107325Siwasaki 7819107325Siwasaki 7820107325Siwasaki---------------------------------------- 7821107325Siwasaki 7822104470Siwasaki02 October 2002. Summary of changes for this release. 7823104470Siwasaki 7824104470Siwasaki 7825104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 7826104470Siwasaki 7827104470SiwasakiFixed a problem where a store/copy of a string to an existing 7828193267Sjkimstring did not always set the string length properly in the String 7829126372Snjlobject. 7830104470Siwasaki 7831104470SiwasakiFixed a reported problem with the ToString operator where the 7832193267Sjkimbehavior was identical to the ToHexString operator instead of just 7833126372Snjlsimply converting a raw buffer to a string data type. 7834104470Siwasaki 7835104470SiwasakiFixed a problem where CopyObject and the other "explicit" 7836193267Sjkimconversion operators were not updating the internal namespace node 7837126372Snjltype as part of the store operation. 7838104470Siwasaki 7839104470SiwasakiFixed a memory leak during implicit source operand conversion 7840193267Sjkimwhere the original object was not deleted if it was converted to a 7841126372Snjlnew object of a different type. 7842104470Siwasaki 7843193267SjkimEnhanced error messages for all problems associated with namespace 7844193267Sjkimlookups. Common procedure generates and prints the lookup name as 7845126372Snjlwell as the formatted status. 7846104470Siwasaki 7847104470SiwasakiCompleted implementation of a new design for the Alias support 7848193267Sjkimwithin the namespace. The existing design did not handle the case 7849193267Sjkimwhere a new object was assigned to one of the two names due to the 7850193267Sjkimuse of an explicit conversion operator, resulting in the two names 7851126372Snjlpointing to two different objects. The new design simply points 7852126372Snjlthe Alias name to the original name node - not to the object. 7853193267SjkimThis results in a level of indirection that must be handled in the 7854126372Snjlname resolution mechanism. 7855104470Siwasaki 7856193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7857126372Snjlbelow. These are the code and data sizes for the acpica.lib 7858126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7859126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7860126372Snjlversion of the code includes the debug output trace mechanism and 7861193267Sjkimhas a larger code and data size. Note that these values will vary 7862126372Snjldepending on the efficiency of the compiler and the compiler 7863126372Snjloptions used during generation. 7864104470Siwasaki 7865104470Siwasaki Previous Release 7866104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7867104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7868104470Siwasaki Current Release: 7869104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7870104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7871104470Siwasaki 7872104470Siwasaki 7873104470Siwasaki2) Linux 7874104470Siwasaki 7875104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 7876104470SiwasakiNeumann) 7877104470Siwasaki 7878104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 7879104470Siwasaki 7880114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 7881104470Siwasaki 7882104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 7883104470Siwasaki 7884104470SiwasakiIA64 fixes. (David Mosberger) 7885104470Siwasaki 7886104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 7887104470Siwasaki 7888104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 7889104470SiwasakiBrodowski) 7890104470Siwasaki 7891104470Siwasaki 7892104470Siwasaki3) iASL Compiler/Disassembler 7893104470Siwasaki 7894104470SiwasakiClarified some warning/error messages. 7895104470Siwasaki 7896104470Siwasaki 7897104470Siwasaki---------------------------------------- 7898104470Siwasaki18 September 2002. Summary of changes for this release. 7899104470Siwasaki 7900104470Siwasaki 7901104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 7902104470Siwasaki 7903114237SnjlFixed a reported problem with reference chaining (via the Index() 7904193267Sjkimand RefOf() operators) in the ObjectType() and SizeOf() operators. 7905126372SnjlThe definition of these operators includes the dereferencing of 7906126372Snjlall chained references to return information on the base object. 7907104470Siwasaki 7908104470SiwasakiFixed a problem with stores to indexed package elements - the 7909104470Siwasakiexisting code would not complete the store if an "implicit 7910114237Snjlconversion" was not performed. In other words, if the existing 7911114237Snjlobject (package element) was to be replaced completely, the code 7912114237Snjldidn't handle this case. 7913104470Siwasaki 7914104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 7915104470Siwasakitarget name to refer to an object of type Integer, String, or 7916104470SiwasakiBuffer, in addition to the scoping object types (Device, 7917104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 7918114237SnjlThis allows existing AML code that has workarounds for a bug in 7919193267SjkimWindows to function properly. A warning is issued, however. This 7920126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 7921126372Snjlan example of this type of ASL code: 7922104470Siwasaki 7923104470Siwasaki Name(DEB,0x00) 7924104470Siwasaki Scope(DEB) 7925104470Siwasaki { 7926104470Siwasaki 7927114237SnjlFixed some reported problems with 64-bit integer support in the 7928114237Snjllocal implementation of C library functions (clib.c) 7929104470Siwasaki 7930104470Siwasaki 7931104470Siwasaki2) Linux 7932104470Siwasaki 7933104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 7934104470Siwasakiundefined in non-SMP. 7935104470Siwasaki 7936114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 7937114237Snjlsystems that do not have an interrupt override entry in the MADT. 7938104470Siwasaki 7939104470Siwasaki2.5 big driver reorganization (Pat Mochel) 7940104470Siwasaki 7941104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 7942104470Siwasaki 7943104470SiwasakiNew blacklist entries (Andi Kleen) 7944104470Siwasaki 7945114237SnjlBlacklist improvements. Split blacklist code out into a separate 7946114237Snjlfile. Move checking the blacklist to very early. Previously, we 7947114237Snjlwould use ACPI tables, and then halfway through init, check the 7948114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 7949114237Snjlback to non-ACPI. 7950104470Siwasaki 7951104470Siwasaki 7952104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 7953104470Siwasaki 7954114237SnjlFixed a problem where the typechecking code didn't know that an 7955114237Snjlalias could point to a method. In other words, aliases were not 7956114237Snjlbeing dereferenced during typechecking. 7957104470Siwasaki 7958104470Siwasaki 7959104470Siwasaki---------------------------------------- 7960104470Siwasaki29 August 2002. Summary of changes for this release. 7961104470Siwasaki 7962104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 7963104470Siwasaki 7964114237SnjlIf the target of a Scope() operator already exists, it must be an 7965114237Snjlobject type that actually opens a scope -- such as a Device, 7966193267SjkimMethod, Scope, etc. This is a fatal runtime error. Similar error 7967126372Snjlcheck has been added to the iASL compiler also. 7968104470Siwasaki 7969114237SnjlTightened up the namespace load to disallow multiple names in the 7970114237Snjlsame scope. This previously was allowed if both objects were of 7971114237Snjlthe same type. (i.e., a lookup was the same as entering a new 7972114237Snjlname). 7973104470Siwasaki 7974104470Siwasaki 7975104470Siwasaki2) Linux 7976104470Siwasaki 7977104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 7978104470Siwasakipolarity. 7979104470Siwasaki 7980104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 7981104470Siwasaki 7982104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 7983104470Siwasakiinterpreter *or* the tables. 7984104470Siwasaki 7985193267SjkimAdded arch-neutral support for parsing SLIT and SRAT tables (Kochi 7986126372SnjlTakayoshi) 7987104470Siwasaki 7988104470Siwasaki 7989104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 7990104470Siwasaki 7991104470SiwasakiImplemented namepath optimization for name declarations. For 7992104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 7993104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 7994104470Siwasaki\_SB_ scope. This optimization is in addition to the named 7995104470Siwasakireference path optimization first released in the previous 7996114237Snjlversion. This would seem to complete all possible optimizations 7997114237Snjlfor namepaths within the ASL/AML. 7998104470Siwasaki 7999114237SnjlIf the target of a Scope() operator already exists, it must be an 8000114237Snjlobject type that actually opens a scope -- such as a Device, 8001114237SnjlMethod, Scope, etc. 8002104470Siwasaki 8003114237SnjlImplemented a check and warning for unreachable code in the same 8004114237Snjlblock below a Return() statement. 8005104470Siwasaki 8006114237SnjlFixed a problem where the listing file was not generated if the 8007114237Snjlcompiler aborted if the maximum error count was exceeded (200). 8008104470Siwasaki 8009193267SjkimFixed a problem where the typechecking of method return values was 8010126372Snjlbroken. This includes the check for a return value when the 8011114237Snjlmethod is invoked as a TermArg (a return value is expected.) 8012104470Siwasaki 8013104470SiwasakiFixed a reported problem where EOF conditions during a quoted 8014104470Siwasakistring or comment caused a fault. 8015104470Siwasaki 8016104470Siwasaki 8017104470Siwasaki---------------------------------------- 8018102550Siwasaki15 August 2002. Summary of changes for this release. 8019102550Siwasaki 8020102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 8021102550Siwasaki 8022114237SnjlFixed a reported problem where a Store to a method argument that 8023193267Sjkimcontains a reference did not perform the indirect store correctly. 8024126372SnjlThis problem was created during the conversion to the new 8025126372Snjlreference object model - the indirect store to a method argument 8026126372Snjlcode was not updated to reflect the new model. 8027102550Siwasaki 8028114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 8029193267Sjkimhandle corner cases, and improve code legibility (Kochi Takayoshi) 8030102550Siwasaki 8031102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 8032114237Snjlprefix. The heavy use of the carat operator by the new namepath 8033193267Sjkimoptimization in the iASL compiler uncovered a problem with the AML 8034126372Snjlinterpreter handling of this prefix. In the case where one or 8035126372Snjlmore carats precede a single nameseg, the nameseg was treated as 8036126372Snjlstandalone and the search rule (to root) was inadvertently 8037114237Snjlapplied. This could cause both the iASL compiler and the 8038114237Snjlinterpreter to find the wrong object or to miss the error that 8039114237Snjlshould occur if the object does not exist at that exact pathname. 8040102550Siwasaki 8041114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 8042193267Sjkimload. This was a relatively minor tweak to the table loading code 8043126372Snjl(a problem caused by the unexpected encounter with a method 8044193267Sjkiminvocation not within a control method), but it does not solve the 8045126372Snjloverall issue of the execution of AML code at the table level. 8046126372SnjlThis investigation is still ongoing. 8047102550Siwasaki 8048193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8049126372Snjlbelow. These are the code and data sizes for the acpica.lib 8050126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8051126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8052126372Snjlversion of the code includes the debug output trace mechanism and 8053193267Sjkimhas a larger code and data size. Note that these values will vary 8054126372Snjldepending on the efficiency of the compiler and the compiler 8055126372Snjloptions used during generation. 8056102550Siwasaki 8057102550Siwasaki Previous Release 8058104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 8059104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 8060102550Siwasaki Current Release: 8061104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 8062104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 8063102550Siwasaki 8064102550Siwasaki 8065102550Siwasaki2) Linux 8066102550Siwasaki 8067102550SiwasakiRemove redundant slab.h include (Brad Hards) 8068102550Siwasaki 8069102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 8070102550Siwasaki 8071102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 8072102550Siwasaki 8073104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 8074104470SiwasakiMachek) 8075102550Siwasaki 8076102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 8077102550Siwasaki 8078102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 8079102550Siwasaki 8080102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 8081102550Siwasaki 8082102550Siwasaki 8083102550Siwasaki3) iASL Compiler/Disassembler 8084102550Siwasaki 8085114237SnjlReworked the compiler options to make them more consistent and to 8086114237Snjluse two-letter options where appropriate. We were running out of 8087114237Snjlsensible letters. This may break some makefiles, so check the 8088114237Snjlcurrent options list by invoking the compiler with no parameters. 8089102550Siwasaki 8090102550SiwasakiCompleted the design and implementation of the ASL namepath 8091114237Snjloptimization option for the compiler. This option optimizes all 8092114237Snjlreferences to named objects to the shortest possible path. The 8093193267Sjkimfirst attempt tries to utilize a single nameseg (4 characters) and 8094126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 8095126372Snjlcannot be used (because either the name is not in the search path 8096126372Snjlor there is a conflict with another object with the same name), 8097126372Snjlthe pathname is optimized using the carat prefix (usually a 8098126372Snjlshorter string than specifying the entire path from the root.) 8099102550Siwasaki 8100114237SnjlImplemented support to obtain the DSDT from the Windows registry 8101114237Snjl(when the disassembly option is specified with no input file). 8102114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 8103114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 8104114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 8105114237Snjlfunction in the DOS OSL to make the disassembler truly OS 8106114237Snjlindependent. 8107102550Siwasaki 8108114237SnjlImplemented a new option to disassemble and compile in one step. 8109114237SnjlWhen used without an input filename, this option will grab the 8110193267SjkimDSDT from the local machine, disassemble it, and compile it in one 8111126372Snjlstep. 8112102550Siwasaki 8113114237SnjlAdded a warning message for invalid escapes (a backslash followed 8114114237Snjlby any character other than the allowable escapes). This catches 8115114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 8116167802Sjkim 8117193267SjkimAlso, there are numerous instances in the ACPI specification where 8118126372Snjlthis error occurs. 8119102550Siwasaki 8120104470SiwasakiAdded a compiler option to disable all optimizations. This is 8121114237Snjlbasically the "compatibility mode" because by using this option, 8122114237Snjlthe AML code will come out exactly the same as other ASL 8123114237Snjlcompilers. 8124102550Siwasaki 8125114237SnjlAdded error messages for incorrectly ordered dependent resource 8126114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 8127114237Snjldependent resource list, nested dependent function macros (both 8128114237Snjlstart and end), and missing StartDependentFn macro. These are 8129114237Snjlcommon errors that should be caught at compile time. 8130102550Siwasaki 8131114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 8132114237Snjlmust be included in the namespace for proper disassembly (because 8133114237Snjlthe disassembler must know the number of arguments.) 8134102550Siwasaki 8135104470SiwasakiAdded an "optimization" message type that is optional (off by 8136114237Snjldefault). This message is used for all optimizations - including 8137193267Sjkimconstant folding, integer optimization, and namepath optimization. 8138102550Siwasaki 8139102550Siwasaki---------------------------------------- 8140102550Siwasaki25 July 2002. Summary of changes for this release. 8141102550Siwasaki 8142102550Siwasaki 8143102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 8144102550Siwasaki 8145114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 8146193267Sjkimcode and has been integrated into the iASL compiler (see below) as 8147126372Snjlwell as the single-step disassembly for the AML debugger and the 8148126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 8149126372Snjlresource templates and macros are fully supported. The 8150114237Snjldisassembler has been tested on over 30 different AML files, 8151114237Snjlproducing identical AML when the resulting disassembled ASL file 8152114237Snjlis recompiled with the same ASL compiler. 8153102550Siwasaki 8154114237SnjlModified the Resource Manager to allow zero interrupts and zero 8155114237Snjldma channels during the GetCurrentResources call. This was 8156114237Snjlcausing problems on some platforms. 8157102550Siwasaki 8158114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 8159114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 8160114237Snjlinterfaces. 8161102550Siwasaki 8162193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8163126372Snjlbelow. These are the code and data sizes for the acpica.lib 8164126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8165126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8166126372Snjlversion of the code includes the debug output trace mechanism and 8167193267Sjkimhas a larger code and data size. Note that these values will vary 8168126372Snjldepending on the efficiency of the compiler and the compiler 8169126372Snjloptions used during generation. 8170102550Siwasaki 8171102550Siwasaki Previous Release 8172104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 8173104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 8174102550Siwasaki Current Release: 8175104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 8176104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 8177102550Siwasaki 8178102550Siwasaki 8179102550Siwasaki2) Linux 8180102550Siwasaki 8181102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 8182102550Siwasaki 8183114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 8184114237Snjl(Richard Schaal) 8185102550Siwasaki 8186102550Siwasaki 8187102550Siwasaki3) iASL compiler 8188102550Siwasaki 8189114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 8190114237Snjloption invokes the disassembler to completely disassemble an 8191114237Snjlinput AML file, producing as output a text ASL file with the 8192114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 8193114237Snjlsource files.) A future enhancement will allow the disassembler 8194114237Snjlto obtain the BIOS DSDT from the registry under Windows. 8195102550Siwasaki 8196102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 8197102550Siwasakidescriptors where an invalid AML sequence was created. 8198102550Siwasaki 8199114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 8200114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 8201114237Snjlcausing reduction conflicts. 8202102550Siwasaki 8203104470SiwasakiFixed a problem where the Ones opcode could get converted to a 8204193267Sjkimvalue of zero if "Ones" was used where a byte, word or dword value 8205126372Snjlwas expected. The 64-bit value is now truncated to the correct 8206126372Snjlsize with the correct value. 8207102550Siwasaki 8208102550Siwasaki 8209167802Sjkim 8210102550Siwasaki---------------------------------------- 8211102550Siwasaki02 July 2002. Summary of changes for this release. 8212102550Siwasaki 8213102550Siwasaki 8214102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 8215102550Siwasaki 8216114237SnjlThe Table Manager code has been restructured to add several new 8217114237Snjlfeatures. Tables that are not required by the core subsystem 8218114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 8219193267Sjkimvalidated in any way and are returned from AcpiGetFirmwareTable if 8220126372Snjlrequested. The AcpiOsTableOverride interface is now called for 8221126372Snjleach table that is loaded by the subsystem in order to allow the 8222126372Snjlhost to override any table it chooses. Previously, only the DSDT 8223126372Snjlcould be overridden. Added one new files, tbrsdt.c and 8224114237Snjltbgetall.c. 8225102550Siwasaki 8226193267SjkimFixed a problem with the conversion of internal package objects to 8227126372Snjlexternal objects (when a package is returned from a control 8228114237Snjlmethod.) The return buffer length was set to zero instead of the 8229114237Snjlproper length of the package object. 8230102550Siwasaki 8231104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 8232114237Snjloperators when passing reference arguments to control methods. A 8233114237Snjlnew type of Reference object is used internally for references 8234114237Snjlproduced by the RefOf operator. 8235102550Siwasaki 8236193267SjkimAdded additional error messages in the Resource Manager to explain 8237126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 8238102550Siwasaki 8239104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 8240193267Sjkimfiner granularity initialization sequence. These two calls should 8241126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 8242114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 8243114237Snjlsame. 8244102550Siwasaki 8245102550Siwasaki 8246102550Siwasaki2) Linux 8247102550Siwasaki 8248114237SnjlUpdated the ACPI utilities module to understand the new style of 8249193267Sjkimfully resolved package objects that are now returned from the core 8250126372Snjlsubsystem. This eliminates errors of the form: 8251102550Siwasaki 8252102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 8253102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 8254102550Siwasaki Invalid element in package (not a device reference) 8255102550Siwasaki 8256102550SiwasakiThe method evaluation utility uses the new buffer allocation 8257102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 8258102550Siwasaki 8259102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 8260167802Sjkim 8261114237SnjlController before the namespace has been fully initialized, which 8262114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 8263114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 8264114237Snjllimited testing was performed of the added functionality.) 8265102550Siwasaki 8266102550SiwasakiFixed memory leaks in the EC driver. 8267102550Siwasaki 8268102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 8269102550Siwasaki 8270114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 8271114237Snjlno longer needed since acpi_evaluate_object can optionally 8272104470Siwasakiallocate memory for the return object. 8273102550Siwasaki 8274193267SjkimImplemented fix for keyboard hang when getting battery readings on 8275126372Snjlsome systems (Stephen White) 8276102550Siwasaki 8277102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 8278102550Siwasaki 8279114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 8280114237Snjlsupport 8281102550Siwasaki 8282102550Siwasaki---------------------------------------- 8283102550Siwasaki11 June 2002. Summary of changes for this release. 8284102550Siwasaki 8285102550Siwasaki 8286102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 8287102550Siwasaki 8288104470SiwasakiFixed a reported problem where constants such as Zero and One 8289114237Snjlappearing within _PRT packages were not handled correctly within 8290114237Snjlthe resource manager code. Originally reported against the ASL 8291114237Snjlcompiler because the code generator now optimizes integers to 8292193267Sjkimtheir minimal AML representation (i.e. AML constants if possible.) 8293126372SnjlThe _PRT code now handles all AML constant opcodes correctly 8294126372Snjl(Zero, One, Ones, Revision). 8295102550Siwasaki 8296102550SiwasakiFixed a problem with the Concatenate operator in the AML 8297193267Sjkiminterpreter where a buffer result object was incorrectly marked as 8298126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 8299102550Siwasaki 8300104470SiwasakiAll package sub-objects are now fully resolved before they are 8301114237Snjlreturned from the external ACPI interfaces. This means that name 8302114237Snjlstrings are resolved to object handles, and constant operators 8303114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 8304102550Siwasaki 8305102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 8306104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 8307104470Siwasakiwithin the AML stream. This has simplified and reduced the 8308104470Siwasakigenerated code size of the subsystem by eliminating about 10 8309104470Siwasakiswitch statements for these constants (which previously were 8310193267Sjkimcontained in Reference objects.) The complicating issues are that 8311126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 8312193267Sjkimoptional target operands and stores to constants are defined to be 8313126372Snjlno-ops. 8314102550Siwasaki 8315193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8316126372Snjlbelow. These are the code and data sizes for the acpica.lib 8317114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8318114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8319114237Snjlversion of the code includes the debug output trace mechanism and 8320193267Sjkimhas a larger code and data size. Note that these values will vary 8321126372Snjldepending on the efficiency of the compiler and the compiler 8322114237Snjloptions used during generation. 8323102550Siwasaki 8324102550Siwasaki Previous Release 8325104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 8326104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 8327102550Siwasaki Current Release: 8328104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 8329104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 8330102550Siwasaki 8331102550Siwasaki 8332102550Siwasaki2) Linux 8333102550Siwasaki 8334167802Sjkim 8335104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 8336104470Siwasakibridges (Bjorn Helgaas). 8337102550Siwasaki 8338102550Siwasaki 8339102550Siwasaki3) iASL Compiler Version X2046: 8340102550Siwasaki 8341193267SjkimFixed a problem where the "_DDN" reserved name was defined to be a 8342126372Snjlcontrol method with one argument. There are no arguments, and 8343114237Snjl_DDN does not have to be a control method. 8344102550Siwasaki 8345114237SnjlFixed a problem with the Linux version of the compiler where the 8346114237Snjlsource lines printed with error messages were the wrong lines. 8347114237SnjlThis turned out to be the "LF versus CR/LF" difference between 8348114237SnjlWindows and Unix. This appears to be the longstanding issue 8349114237Snjlconcerning listing output and error messages. 8350102550Siwasaki 8351114237SnjlFixed a problem with the Linux version of compiler where opcode 8352114237Snjlnames within error messages were wrong. This was caused by a 8353114237Snjlslight difference in the output of the Flex tool on Linux versus 8354114237SnjlWindows. 8355102550Siwasaki 8356193267SjkimFixed a problem with the Linux compiler where the hex output files 8357126372Snjlcontained some garbage data caused by an internal buffer overrun. 8358102550Siwasaki 8359102550Siwasaki 8360102550Siwasaki---------------------------------------- 8361102550Siwasaki17 May 2002. Summary of changes for this release. 8362102550Siwasaki 8363102550Siwasaki 8364102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 8365102550Siwasaki 8366102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 8367104470SiwasakiOmniBook where the FADT revision number and the table size are 8368193267Sjkiminconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new 8369126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 8370126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 8371126372Snjlby the revision number. Although this is a BIOS bug, this is a 8372126372Snjlcase where the workaround is simple enough and with no side 8373126372Snjleffects, so it seemed prudent to add it. A warning message is 8374126372Snjlissued, however. 8375102550Siwasaki 8376193267SjkimImplemented minimum size checks for the fixed-length ACPI tables - 8377126372Snjl- the FADT and FACS, as well as consistency checks between the 8378114237Snjlrevision number and the table size. 8379102550Siwasaki 8380114237SnjlFixed a reported problem in the table override support where the 8381114237Snjlnew table pointer was incorrectly treated as a physical address 8382114237Snjlinstead of a logical address. 8383102550Siwasaki 8384114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 8385114237Snjlwith more descriptive codes. 8386102550Siwasaki 8387193267SjkimFixed a problem where an exception would occur if an ASL Field was 8388126372Snjldefined with no named Field Units underneath it (used by some 8389114237Snjlindex fields). 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: 68.8K Code, 7.1K Data, 75.9K Total 8402104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 8403102550Siwasaki Current Release: 8404104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 8405104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 8406102550Siwasaki 8407102550Siwasaki 8408102550Siwasaki 8409102550Siwasaki2) Linux 8410102550Siwasaki 8411114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 8412114237Snjl(Paul D. and Dominik Brodowski) 8413102550Siwasaki 8414102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 8415102550Siwasaki 8416102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 8417102550Siwasaki 8418102550SiwasakiFix "MHz" typo (Dominik Brodowski) 8419102550Siwasaki 8420102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 8421102550Siwasaki 8422102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 8423102550Siwasaki 8424102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 8425102550Siwasaki 8426102550Siwasaki3) iASL Compiler Version X2044: 8427102550Siwasaki 8428193267SjkimImplemented error checking for the string used in the EISAID macro 8429193267Sjkim(Usually used in the definition of the _HID object.) The code now 8430126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 8431126372Snjluppercase letters and 4 hex digits. 8432102550Siwasaki 8433102550SiwasakiIf a raw string is used in the definition of the _HID object 8434102550Siwasaki(instead of the EISAID macro), the string must contain all 8435114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 8436114237Snjlof the asterisk.) 8437102550Siwasaki 8438114237SnjlImplemented checking for invalid use of ACPI reserved names for 8439114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 8440114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 8441114237SnjlPreviously, this check was only performed for control methods. 8442102550Siwasaki 8443114237SnjlImplemented an additional check on the Name operator to emit an 8444114237Snjlerror if a reserved name that must be implemented in ASL as a 8445114237Snjlcontrol method is used. We know that a reserved name must be a 8446114237Snjlmethod if it is defined with input arguments. 8447102550Siwasaki 8448193267SjkimThe warning emitted when a namespace object reference is not found 8449126372Snjlduring the cross reference phase has been changed into an error. 8450193267SjkimThe "External" directive should be used for names defined in other 8451126372Snjlmodules. 8452102550Siwasaki 8453102550Siwasaki 8454102550Siwasaki4) Tools and Utilities 8455102550Siwasaki 8456114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 8457114237Snjltested. 8458102550Siwasaki 8459193267SjkimFixed a problem with the output of both acpidump and adump16 where 8460126372Snjlthe indentation of closing parentheses and brackets was not 8461167802Sjkim 8462114237Snjlaligned properly with the parent block. 8463102550Siwasaki 8464102550Siwasaki 8465102550Siwasaki---------------------------------------- 8466102550Siwasaki03 May 2002. Summary of changes for this release. 8467102550Siwasaki 8468102550Siwasaki 8469102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 8470102550Siwasaki 8471114237SnjlAdded support a new OSL interface that allows the host operating 8472167802Sjkim 8473114237Snjlsystem software to override the DSDT found in the firmware - 8474193267SjkimAcpiOsTableOverride. With this interface, the OSL can examine the 8475126372Snjlversion of the firmware DSDT and replace it with a different one 8476126372Snjlif desired. 8477102550Siwasaki 8478114237SnjlAdded new external interfaces for accessing ACPI registers from 8479114237Snjldevice drivers and other system software - AcpiGetRegister and 8480114237SnjlAcpiSetRegister. This was simply an externalization of the 8481114237Snjlexisting AcpiHwBitRegister interfaces. 8482102550Siwasaki 8483104470SiwasakiFixed a regression introduced in the previous build where the 8484104470SiwasakiASL/AML CreateField operator always returned an error, 8485102550Siwasaki"destination must be a NS Node". 8486102550Siwasaki 8487114237SnjlExtended the maximum time (before failure) to successfully enable 8488114237SnjlACPI mode to 3 seconds. 8489102550Siwasaki 8490193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8491126372Snjlbelow. These are the code and data sizes for the acpica.lib 8492126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8493126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8494126372Snjlversion of the code includes the debug output trace mechanism and 8495193267Sjkimhas a larger code and data size. Note that these values will vary 8496126372Snjldepending on the efficiency of the compiler and the compiler 8497126372Snjloptions used during generation. 8498102550Siwasaki 8499102550Siwasaki Previous Release 8500104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8501104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8502102550Siwasaki Current Release: 8503104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 8504104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 8505102550Siwasaki 8506102550Siwasaki 8507102550Siwasaki2) Linux 8508102550Siwasaki 8509104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 8510193267Sjkimfree. While 3 out of 4 of our in-house systems work fine, the last 8511126372Snjlone still hangs when testing the LAPIC timer. 8512102550Siwasaki 8513114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 8514114237Snjlname. 8515102550Siwasaki 8516102550SiwasakiAdded warning on boot for Presario 711FR. 8517102550Siwasaki 8518102550SiwasakiSleep improvements (Pavel Machek) 8519102550Siwasaki 8520102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 8521102550Siwasaki 8522102550SiwasakiIA64: Fixed memory map functions (JI Lee) 8523102550Siwasaki 8524102550Siwasaki 8525102550Siwasaki3) iASL Compiler Version X2043: 8526102550Siwasaki 8527114237SnjlAdded support to allow the compiler to be integrated into the MS 8528114237SnjlVC++ development environment for one-button compilation of single 8529114237Snjlfiles or entire projects -- with error-to-source-line mapping. 8530102550Siwasaki 8531104470SiwasakiImplemented support for compile-time constant folding for the 8532104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 8533104470Siwasakispecification. This allows the ASL writer to use expressions 8534104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 8535114237Snjlevaluate to constants at compile time and will also simplify the 8536114237Snjlemitted AML in any such sub-expressions that can be folded 8537104470Siwasaki(evaluated at compile-time.) This increases the size of the 8538104470Siwasakicompiler significantly because a portion of the ACPI CA AML 8539104470Siwasakiinterpreter is included within the compiler in order to pre- 8540104470Siwasakievaluate constant expressions. 8541102550Siwasaki 8542114237Snjl 8543102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 8544114237Snjlcompiler to fault. (This macro is used in conjunction with the 8545114237Snjl_STR reserved name.) 8546102550Siwasaki 8547114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 8548114237SnjlOnes opcodes where possible to further reduce the size of integer 8549114237Snjlconstants and thus reduce the overall size of the generated AML 8550114237Snjlcode. 8551102550Siwasaki 8552193267SjkimImplemented error checking for new reserved terms for ACPI version 8553126372Snjl2.0A. 8554102550Siwasaki 8555104470SiwasakiImplemented the -qr option to display the current list of ACPI 8556104470Siwasakireserved names known to the compiler. 8557102550Siwasaki 8558104470SiwasakiImplemented the -qc option to display the current list of ASL 8559104470Siwasakioperators that are allowed within constant expressions and can 8560193267Sjkimtherefore be folded at compile time if the operands are constants. 8561102550Siwasaki 8562102550Siwasaki 8563102550Siwasaki4) Documentation 8564102550Siwasaki 8565193267SjkimUpdated the Programmer's Reference for new interfaces, data types, 8566126372Snjland memory allocation model options. 8567102550Siwasaki 8568114237SnjlUpdated the iASL Compiler User Reference to apply new format and 8569114237Snjladd information about new features and options. 8570102550Siwasaki 8571102550Siwasaki---------------------------------------- 8572102550Siwasaki19 April 2002. Summary of changes for this release. 8573102550Siwasaki 8574102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 8575102550Siwasaki 8576114237SnjlThe source code base for the Core Subsystem has been completely 8577114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 8578114237Snjlversions. The Lint option files used are included in the 8579114237Snjl/acpi/generate/lint directory. 8580102550Siwasaki 8581102550SiwasakiImplemented enhanced status/error checking across the entire 8582114237SnjlHardware manager subsystem. Any hardware errors (reported from 8583114237Snjlthe OSL) are now bubbled up and will abort a running control 8584114237Snjlmethod. 8585102550Siwasaki 8586167802Sjkim 8587114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 8588114237Snjlwas stored only with control method nodes, causing a fault when 8589114237Snjlnon-control method code was executed during table loading. The 8590114237Snjlsolution implemented uses a global variable to indicate table 8591114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 8592114237Snjlnot support mixed integer widths across different ACPI tables 8593114237Snjl(DSDT, SSDT). 8594102550Siwasaki 8595114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 8596114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 8597114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 8598114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 8599193267SjkimACPI 2.0 X field is zero (even though the table revision indicates 8600193267Sjkima full ACPI 2.0 table.) The ACPI specification will be updated to 8601126372Snjlclarify this issue. 8602102550Siwasaki 8603104470SiwasakiFixed a problem with the SystemMemory operation region handler 8604104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 8605104470Siwasakispecified access width was larger than a byte. This caused 8606104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 8607193267Sjkimaccessed with the width specified. On systems that do not support 8608193267Sjkimnon-aligned transfers, a check is made to guarantee proper address 8609126372Snjlalignment before proceeding in order to avoid an AML-caused 8610126372Snjlalignment fault within the kernel. 8611102550Siwasaki 8612102550Siwasaki 8613114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 8614114237Snjlof the 4-byte Irq field was extracted. 8615102550Siwasaki 8616114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 8617114237Snjlfunction was out of date and required a rewrite. 8618114237Snjl 8619193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8620126372Snjlbelow. These are the code and data sizes for the acpica.lib 8621126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8622126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8623126372Snjlversion of the code includes the debug output trace mechanism and 8624193267Sjkimhas a larger code and data size. Note that these values will vary 8625126372Snjldepending on the efficiency of the compiler and the compiler 8626126372Snjloptions used during generation. 8627102550Siwasaki 8628102550Siwasaki Previous Release 8629104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8630104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8631102550Siwasaki Current Release: 8632104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8633104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8634102550Siwasaki 8635102550Siwasaki 8636102550Siwasaki2) Linux 8637102550Siwasaki 8638102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 8639102550Siwasaki 8640102550Siwasaki 8641102550Siwasaki3) iASL Compiler Version X2042: 8642102550Siwasaki 8643104470SiwasakiImplemented an additional compile-time error check for a field 8644104470Siwasakiunit whose size + minimum access width would cause a run-time 8645114237Snjlaccess beyond the end-of-region. Previously, only the field size 8646114237Snjlitself was checked. 8647102550Siwasaki 8648104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 8649104470Siwasakiobject in preparation for compile-time evaluation of the type 8650104470Siwasaki3/4/5 ASL operators. 8651102550Siwasaki 8652102550Siwasaki 8653102550Siwasaki---------------------------------------- 8654102550SiwasakiSummary of changes for this release: 03_29_02 8655102550Siwasaki 8656102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 8657102550Siwasaki 8658104470SiwasakiImplemented support for late evaluation of TermArg operands to 8659193267SjkimBuffer and Package objects. This allows complex expressions to be 8660126372Snjlused in the declarations of these object types. 8661102550Siwasaki 8662193267SjkimFixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI 8663126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 8664126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 8665193267Sjkimthe field is returned as a buffer only if the field is larger than 8666126372Snjl64 bits. The TableRevision is now considered when making this 8667126372Snjlconversion to avoid incompatibility with existing ASL code. 8668102550Siwasaki 8669104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 8670114237Snjlallows an RSDP with either a logical or physical address. With 8671114237Snjlthis support, the host OS can now override all ACPI tables with 8672114237Snjlone logical RSDP. Includes implementation of "typed" pointer 8673114237Snjlsupport to allow a common data type for both physical and logical 8674114237Snjlpointers internally. This required a change to the 8675114237SnjlAcpiOsGetRootPointer interface. 8676102550Siwasaki 8677193267SjkimImplemented the use of ACPI 2.0 Generic Address Structures for all 8678193267SjkimGPE, Fixed Event, and PM Timer I/O. This allows the use of memory 8679126372Snjlmapped I/O for these ACPI features. 8680102550Siwasaki 8681102550SiwasakiInitialization now ignores not only non-required tables (All 8682114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 8683114237Snjlnot validate the table headers of unrecognized tables. 8684102550Siwasaki 8685102550SiwasakiFixed a problem where a notify handler could only be 8686102550Siwasakiinstalled/removed on an object of type Device. All "notify" 8687167802Sjkim 8688102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 8689102550SiwasakiThermal. 8690102550Siwasaki 8691114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 8692193267Sjkimcritical information is returned when this debug level is enabled. 8693102550Siwasaki 8694193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8695126372Snjlbelow. These are the code and data sizes for the acpica.lib 8696126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8697126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8698126372Snjlversion of the code includes the debug output trace mechanism and 8699193267Sjkimhas a larger code and data size. Note that these values will vary 8700126372Snjldepending on the efficiency of the compiler and the compiler 8701126372Snjloptions used during generation. 8702102550Siwasaki 8703102550Siwasaki Previous Release 8704104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8705104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8706102550Siwasaki Current Release: 8707104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8708104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8709102550Siwasaki 8710102550Siwasaki 8711102550Siwasaki2) Linux: 8712102550Siwasaki 8713114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 8714114237Snjl2.0-based processor performance control (e.g. Intel(R) 8715114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 8716114237Snjlthe Intel "applet" interface are not supported through this. The 8717114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 8718114237Snjl[Note that basic policy for controlling performance state 8719114237Snjltransitions will be included in the next version of ospmd.] The 8720114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 8721114237Snjlerrata handling underwent a complete overhaul (big thanks to 8722114237SnjlDominik Brodowski). 8723102550Siwasaki 8724114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 8725114237Snjlbased devices in the ACPI namespace are now dynamically bound 8726114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 8727114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 8728114237Snjlsubordinate PCI bridges. 8729102550Siwasaki 8730104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 8731104470Siwasakientries defined underneath PCI bridges. 8732102550Siwasaki 8733104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 8734104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 8735102550Siwasaki 8736114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 8737114237Snjl(acpi.c, mpparse.c) -- stay tuned. 8738102550Siwasaki 8739102550SiwasakiAdded back visual differentiation between fixed-feature and 8740114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 8741114237Snjlbutton/power/PWRF) to simplify button identification. 8742102550Siwasaki 8743114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 8744114237Snjlany "_THIS_MODULE defined but not used" messages. 8745102550Siwasaki 8746102550SiwasakiCan now shut down the system using "magic sysrq" key. 8747102550Siwasaki 8748102550Siwasaki 8749102550Siwasaki3) iASL Compiler version 2041: 8750102550Siwasaki 8751104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 8752104470Siwasakiconstants were not reported. 8753102550Siwasaki 8754193267SjkimImplemented a fix for the General Register template Address field. 8755126372SnjlThis field was 8 bits when it should be 64. 8756102550Siwasaki 8757193267SjkimFixed a problem where errors/warnings were no longer being emitted 8758126372Snjlwithin the listing output file. 8759102550Siwasaki 8760114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 8761114237Snjlexactly 4 characters, alphanumeric only. 8762102550Siwasaki 8763102550Siwasaki 8764102550Siwasaki 8765102550Siwasaki 8766102550Siwasaki---------------------------------------- 8767102550SiwasakiSummary of changes for this release: 03_08_02 8768102550Siwasaki 8769102550Siwasaki 8770102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 8771102550Siwasaki 8772114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 8773193267Sjkimkeyword could cause an interpreter error due to attempting to read 8774126372Snjlor write beyond the end of the parent Operation Region. 8775102550Siwasaki 8776193267SjkimFixed a problem in the SystemMemory Operation Region handler where 8777126372Snjlan attempt was made to map memory beyond the end of the region. 8778126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 8779126372Snjlerrors on some Linux systems. 8780102550Siwasaki 8781114237SnjlFixed a problem where the interpreter/namespace "search to root" 8782114237Snjlalgorithm was not functioning for some object types. Relaxed the 8783114237Snjlinternal restriction on the search to allow upsearches for all 8784114237Snjlexternal object types as well as most internal types. 8785102550Siwasaki 8786102550Siwasaki 8787102550Siwasaki2) Linux: 8788102550Siwasaki 8789193267SjkimWe now use safe_halt() macro versus individual calls to sti | hlt. 8790102550Siwasaki 8791193267SjkimWriting to the processor limit interface should now work. "echo 1" 8792126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 8793167802Sjkim 8794126372Snjldefault. 8795102550Siwasaki 8796102550Siwasaki 8797102550Siwasaki3) ASL compiler: 8798102550Siwasaki 8799102550SiwasakiFixed segfault on Linux version. 8800102550Siwasaki 8801102550Siwasaki 8802102550Siwasaki---------------------------------------- 8803102550SiwasakiSummary of changes for this release: 02_25_02 8804102550Siwasaki 8805102550Siwasaki1) ACPI CA Core Subsystem: 8806102550Siwasaki 8807102550Siwasaki 8808102550SiwasakiFixed a problem where the GPE bit masks were not initialized 8809102550Siwasakiproperly, causing erratic GPE behavior. 8810102550Siwasaki 8811193267SjkimImplemented limited support for multiple calling conventions. The 8812126372Snjlcode can be generated with either the VPL (variable parameter 8813114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 8814114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 8815114237Snjlwhen generated with FPL. 8816102550Siwasaki 8817102550Siwasaki 8818102550Siwasaki2) Linux 8819102550Siwasaki 8820114237SnjlRe-add some /proc/acpi/event functionality that was lost during 8821114237Snjlthe rewrite 8822102550Siwasaki 8823193267SjkimResolved issue with /proc events for fixed-feature buttons showing 8824126372Snjlup as the system device. 8825102550Siwasaki 8826193267SjkimFixed checks on C2/C3 latencies to be inclusive of maximum values. 8827102550Siwasaki 8828114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 8829102550Siwasaki 8830114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 8831102550Siwasaki 8832104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 8833104470Siwasakihysterisis. 8834102550Siwasaki 8835102550SiwasakiRestructured PRT support. 8836102550Siwasaki 8837102550Siwasaki 8838102550Siwasaki---------------------------------------- 8839102550SiwasakiSummary of changes for this label: 02_14_02 8840102550Siwasaki 8841102550Siwasaki 8842102550Siwasaki1) ACPI CA Core Subsystem: 8843102550Siwasaki 8844114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 8845114237SnjlFADT tables. 8846102550Siwasaki 8847114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 8848193267Sjkimbeen removed. All 64-bit platforms should be migrated to the ACPI 8849193267Sjkim2.0 tables. The actbl71.h header has been removed from the source 8850126372Snjltree. 8851102550Siwasaki 8852114237SnjlAll C macros defined within the subsystem have been prefixed with 8853114237Snjl"ACPI_" to avoid collision with other system include files. 8854102550Siwasaki 8855193267SjkimRemoved the return value for the two AcpiOsPrint interfaces, since 8856126372Snjlit is never used and causes lint warnings for ignoring the return 8857126372Snjlvalue. 8858102550Siwasaki 8859104470SiwasakiAdded error checking to all internal mutex acquire and release 8860104470Siwasakicalls. Although a failure from one of these interfaces is 8861104470Siwasakiprobably a fatal system error, these checks will cause the 8862114237Snjlimmediate abort of the currently executing method or interface. 8863102550Siwasaki 8864114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 8865193267Sjkimfault. This was a side effect of the deployment of the new memory 8866126372Snjlallocation model. 8867102550Siwasaki 8868193267SjkimFixed a couple of problems with the Global Lock support introduced 8869193267Sjkimin the last major build. The "common" (1.0/2.0) internal FACS was 8870126372Snjlbeing overwritten with the FACS signature and clobbering the 8871126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 8872126372Snjlunmapped after construction of the "common" FACS, preventing 8873126372Snjlaccess to the actual Global Lock field within it. The "common" 8874126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 8875126372Snjlis used simply as a global. 8876102550Siwasaki 8877193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8878126372Snjlbelow. These are the code and data sizes for the acpica.lib 8879126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8880126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8881126372Snjlversion of the code includes the debug output trace mechanism and 8882193267Sjkimhas a larger code and data size. Note that these values will vary 8883126372Snjldepending on the efficiency of the compiler and the compiler 8884126372Snjloptions used during generation. 8885102550Siwasaki 8886102550Siwasaki Previous Release (02_07_01) 8887104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8888104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8889102550Siwasaki Current Release: 8890104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8891104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8892102550Siwasaki 8893102550Siwasaki 8894102550Siwasaki2) Linux 8895102550Siwasaki 8896102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 8897102550Siwasakichanges described above. 8898102550Siwasaki 8899114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 8900114237Snjlproper poll functionality. 8901102550Siwasaki 8902102550SiwasakiFixed and restructured power management (acpi_bus). 8903102550Siwasaki 8904193267SjkimOnly create /proc "view by type" when devices of that class exist. 8905102550Siwasaki 8906104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 8907102550Siwasaki 8908102550SiwasakiImproved thermal zone code. 8909102550Siwasaki 8910102550Siwasaki 8911102550Siwasaki3) ASL Compiler, version X2039: 8912102550Siwasaki 8913114237Snjl 8914114237SnjlImplemented the new compiler restriction on ASL String hex/octal 8915193267Sjkimescapes to non-null, ASCII values. An error results if an invalid 8916126372Snjlvalue is used. (This will require an ACPI 2.0 specification 8917126372Snjlchange.) 8918102550Siwasaki 8919193267SjkimAML object labels that are output to the optional C and ASM source 8920126372Snjlare now prefixed with both the ACPI table signature and table ID 8921126372Snjlto help guarantee uniqueness within a large BIOS project. 8922102550Siwasaki 8923102550Siwasaki 8924102550Siwasaki---------------------------------------- 8925102550SiwasakiSummary of changes for this label: 02_01_02 8926102550Siwasaki 8927102550Siwasaki1) ACPI CA Core Subsystem: 8928102550Siwasaki 8929114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 8930114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 8931114237Snjlother changes for ACPI 2.0 support are complete. With 8932193267Sjkimsimultaneous code and data optimizations throughout the subsystem, 8933126372SnjlACPI 2.0 support has been implemented with almost no additional 8934126372Snjlcost in terms of code and data size. 8935102550Siwasaki 8936114237SnjlImplemented a new mechanism for allocation of return buffers. If 8937114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 8938114237Snjlbe allocated on behalf of the caller. Consolidated all return 8939114237Snjlbuffer validation and allocation to a common procedure. Return 8940193267Sjkimbuffers will be allocated via the primary OSL allocation interface 8941193267Sjkimsince it appears that a separate pool is not needed by most users. 8942126372SnjlIf a separate pool is required for these buffers, the caller can 8943126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 8944102550Siwasaki 8945102550SiwasakiImplemented support for string operands within the DerefOf 8946102550Siwasakioperator. 8947102550Siwasaki 8948114237SnjlRestructured the Hardware and Event managers to be table driven, 8949114237Snjlsimplifying the source code and reducing the amount of generated 8950114237Snjlcode. 8951102550Siwasaki 8952102550SiwasakiSplit the common read/write low-level ACPI register bitfield 8953104470Siwasakiprocedure into a separate read and write, simplifying the code 8954104470Siwasakiconsiderably. 8955102550Siwasaki 8956114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 8957114237Snjlused only a handful of times and didn't have enough critical mass 8958193267Sjkimfor a separate interface. Replaced with a common calloc procedure 8959126372Snjlin the core. 8960102550Siwasaki 8961104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 8962104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 8963114237SnjlReorganized the GPE information and shrunk a large array that was 8964114237Snjloriginally large enough to hold info for all possible GPEs (256) 8965114237Snjlto simply large enough to hold all GPEs up to the largest GPE 8966114237Snjlnumber on the machine. 8967102550Siwasaki 8968114237SnjlFixed a reported problem with resource structure alignment on 64- 8969114237Snjlbit platforms. 8970102550Siwasaki 8971102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 8972102550Siwasakiinterfaces to not require any flags for the common case of 8973102550Siwasakienabling/disabling a GPE. 8974102550Siwasaki 8975104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 8976102550Siwasaki 8977114237SnjlMost TBDs in comments within the source code have been resolved 8978114237Snjland eliminated. 8979102550Siwasaki 8980167802Sjkim 8981102550SiwasakiFixed a problem in the interpreter where a standalone parent 8982102550Siwasakiprefix (^) was not handled correctly in the interpreter and 8983102550Siwasakidebugger. 8984102550Siwasaki 8985102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 8986102550Siwasaki 8987193267SjkimImplemented Field support in the ASL Load operator. This allows a 8988126372Snjltable to be loaded from a named field, in addition to loading a 8989114237Snjltable directly from an Operation Region. 8990102550Siwasaki 8991193267SjkimImplemented timeout and handle support in the external Global Lock 8992126372Snjlinterfaces. 8993102550Siwasaki 8994114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 8995193267Sjkimlonger being generated correctly during the dump of named objects. 8996102550Siwasaki 8997102550SiwasakiModified the AML debugger to give a full display of if/while 8998102550Siwasakipredicates instead of just one AML opcode at a time. (The 8999193267Sjkimpredicate can have several nested ASL statements.) The old method 9000126372Snjlwas confusing during single stepping. 9001102550Siwasaki 9002193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9003126372Snjlbelow. These are the code and data sizes for the acpica.lib 9004114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9005114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 9006114237Snjlversion of the code includes the debug output trace mechanism and 9007193267Sjkimhas a larger code and data size. Note that these values will vary 9008126372Snjldepending on the efficiency of the compiler and the compiler 9009114237Snjloptions used during generation. 9010102550Siwasaki 9011102550Siwasaki Previous Release (12_18_01) 9012114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 9013114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 9014102550Siwasaki Current Release: 9015114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 9016114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 9017102550Siwasaki 9018102550Siwasaki2) Linux 9019102550Siwasaki 9020104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 9021104470Siwasakidriver) 9022102550Siwasaki 9023102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 9024102550Siwasaki 9025102550SiwasakiNew thermal policy (Thermal driver) 9026102550Siwasaki 9027102550SiwasakiMany updates to /proc 9028102550Siwasaki 9029102550SiwasakiBattery "low" event support (Battery driver) 9030102550Siwasaki 9031104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 9032102550Siwasaki 9033104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 9034102550Siwasaki 9035102550SiwasakiMenuconfig options redesigned 9036102550Siwasaki 9037102550Siwasaki3) ASL Compiler, version X2037: 9038102550Siwasaki 9039193267SjkimImplemented several new output features to simplify integration of 9040126372SnjlAML code into firmware: 1) Output the AML in C source code with 9041193267Sjkimlabels for each named ASL object. The original ASL source code 9042193267Sjkimis interleaved as C comments. 2) Output the AML in ASM source code 9043126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 9044126372Snjlraw hex table form, in either C or ASM. 9045102550Siwasaki 9046102550SiwasakiImplemented support for optional string parameters to the 9047102550SiwasakiLoadTable operator. 9048102550Siwasaki 9049104470SiwasakiCompleted support for embedded escape sequences within string 9050114237Snjlliterals. The compiler now supports all single character escapes 9051114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 9052114237Snjlnull byte into a string literal (via the hex/octal escape) causes 9053114237Snjlthe string to be immediately terminated. A warning is issued. 9054102550Siwasaki 9055104470SiwasakiFixed a problem where incorrect AML was generated for the case 9056104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 9057102550Siwasaki 9058102550Siwasaki) with no trailing name segments. 9059102550Siwasaki 9060102550SiwasakiThe compiler has been successfully generated with a 64-bit C 9061102550Siwasakicompiler. 9062102550Siwasaki 9063102550Siwasaki 9064102550Siwasaki 9065102550Siwasaki 9066102550Siwasaki---------------------------------------- 9067102550SiwasakiSummary of changes for this label: 12_18_01 9068102550Siwasaki 9069102550Siwasaki1) Linux 9070102550Siwasaki 9071114237SnjlEnhanced blacklist with reason and severity fields. Any table's 9072114237Snjlsignature may now be used to identify a blacklisted system. 9073102550Siwasaki 9074114237SnjlCall _PIC control method to inform the firmware which interrupt 9075114237Snjlmodel the OS is using. Turn on any disabled link devices. 9076102550Siwasaki 9077102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 9078102550Siwasaki 9079102550Siwasaki 2) ACPI CA Core Subsystem: 9080102550Siwasaki 9081193267SjkimImplemented ACPI 2.0 semantics for the "Break" operator (Exit from 9082126372Snjlwhile loop) 9083102550Siwasaki 9084102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 9085102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 9086193267Sjkimoperators. All new ACPI 2.0 operators are now implemented in both 9087193267Sjkimthe ASL compiler and the AML interpreter. The only remaining ACPI 9088126372Snjl2.0 task is support for the String data type in the DerefOf 9089193267Sjkimoperator. Fixed a problem with AcquireMutex where the status code 9090126372Snjlwas lost if the caller had to actually wait for the mutex. 9091102550Siwasaki 9092104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 9093102550Siwasaki 9094193267SjkimCompleted implementation of the external Global Lock interfaces -- 9095126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 9096126372SnjlHandler parameters were added. 9097102550Siwasaki 9098102550SiwasakiCompleted another pass at removing warnings and issues when 9099114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 9100114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 9101114237Snjladd and subtract (diff) macros have changed considerably. 9102102550Siwasaki 9103167802Sjkim 9104114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 9105114237Snjl64-bit platforms, 32-bits on all others. This type is used 9106193267Sjkimwherever memory allocation and/or the C sizeof() operator is used, 9107126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 9108126372Snjland AcpiOsCallocate. 9109102550Siwasaki 9110102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 9111102550Siwasaki 9112193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9113126372Snjlbelow. These are the code and data sizes for the acpica.lib 9114114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9115114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 9116114237Snjlversion of the code includes the debug output trace mechanism and 9117114237Snjlhas a larger code and data size. Note that these values will vary 9118114237Snjldepending on the efficiency of the compiler and the compiler 9119114237Snjloptions used during generation. 9120102550Siwasaki 9121102550Siwasaki Previous Release (12_05_01) 9122114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 9123114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 9124102550Siwasaki Current Release: 9125114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 9126114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 9127102550Siwasaki 9128102550Siwasaki 3) ASL Compiler, version X2034: 9129102550Siwasaki 9130114237SnjlNow checks for (and generates an error if detected) the use of a 9131114237SnjlBreak or Continue statement without an enclosing While statement. 9132102550Siwasaki 9133167802Sjkim 9134102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 9135102550Siwasakicompiler. 9136102550Siwasaki 9137102550Siwasaki ---------------------------------------- 9138102550SiwasakiSummary of changes for this label: 12_05_01 9139102550Siwasaki 9140102550Siwasaki 1) ACPI CA Core Subsystem: 9141102550Siwasaki 9142102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 9143104470Siwasakioperator creates a new copy of an object (and is also used to 9144193267Sjkimbypass the "implicit conversion" mechanism of the Store operator.) 9145102550Siwasaki 9146102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 9147102550Siwasakiimplemented. The change is that performing a SizeOf on a 9148114237Snjlreference object causes an automatic dereference of the object to 9149114237Snjltha actual value before the size is evaluated. This behavior was 9150114237Snjlundefined in ACPI 1.0. 9151102550Siwasaki 9152114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 9153114237Snjlhave been implemented. The interrupt polarity and mode are now 9154114237Snjlindependently set. 9155102550Siwasaki 9156114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 9157114237Snjlappearing in Package objects were not properly converted to 9158114237Snjlintegers when the internal Package was converted to an external 9159114237Snjlobject (via the AcpiEvaluateObject interface.) 9160102550Siwasaki 9161114237SnjlFixed a problem with the namespace object deletion mechanism for 9162114237Snjlobjects created by control methods. There were two parts to this 9163193267Sjkimproblem: 1) Objects created during the initialization phase method 9164193267Sjkimparse were not being deleted, and 2) The object owner ID mechanism 9165126372Snjlto track objects was broken. 9166102550Siwasaki 9167114237SnjlFixed a problem where the use of the ASL Scope operator within a 9168114237Snjlcontrol method would result in an invalid opcode exception. 9169102550Siwasaki 9170114237SnjlFixed a problem introduced in the previous label where the buffer 9171114237Snjllength required for the _PRT structure was not being returned 9172114237Snjlcorrectly. 9173102550Siwasaki 9174193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9175126372Snjlbelow. These are the code and data sizes for the acpica.lib 9176114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9177114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 9178114237Snjlversion of the code includes the debug output trace mechanism and 9179193267Sjkimhas a larger code and data size. Note that these values will vary 9180126372Snjldepending on the efficiency of the compiler and the compiler 9181114237Snjloptions used during generation. 9182102550Siwasaki 9183102550Siwasaki Previous Release (11_20_01) 9184114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 9185114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 9186102550Siwasaki 9187102550Siwasaki Current Release: 9188114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 9189114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 9190102550Siwasaki 9191102550Siwasaki 2) Linux: 9192102550Siwasaki 9193102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 9194102550Siwasaki 9195104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 9196114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 9197114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 9198114237Snjlentries are treated as if they were static (not yet 9199114237Snjlreconfigurable). Architecture- specific code to use this data is 9200114237Snjlabsent on IA32 but should be available shortly. 9201102550Siwasaki 9202114237SnjlChanged the initialization sequence to start the ACPI interpreter 9203114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 9204114237Snjlin init/main.c. This ordering is required to support PRT and 9205114237Snjlfacilitate other (future) enhancement. A side effect is that the 9206193267SjkimACPI bus driver and certain device drivers can no longer be loaded 9207126372Snjlas modules. 9208102550Siwasaki 9209104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 9210104470SiwasakiRouting support to be included without the ACPI Bus and other 9211104470Siwasakidevice drivers. 9212102550Siwasaki 9213102550Siwasaki 3) ASL Compiler, version X2033: 9214102550Siwasaki 9215102550SiwasakiFixed some issues with the use of the new CopyObject and 9216102550SiwasakiDataTableRegion operators. Both are fully functional. 9217102550Siwasaki 9218102550Siwasaki ---------------------------------------- 9219102550SiwasakiSummary of changes for this label: 11_20_01 9220102550Siwasaki 9221102550Siwasaki 20 November 2001. Summary of changes for this release. 9222102550Siwasaki 9223102550Siwasaki 1) ACPI CA Core Subsystem: 9224102550Siwasaki 9225104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 9226193267SjkimInteger, String, or Buffer to an Index of a Buffer will store only 9227126372Snjlthe least-significant byte of the source to the Indexed buffer 9228126372Snjlbyte. Multiple writes are not performed. 9229102550Siwasaki 9230104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 9231104470Siwasakioperator was not recorded correctly into the field object. 9232102550Siwasaki 9233102550SiwasakiFixed a problem where ASL Event objects were created in a 9234114237Snjlsignalled state. Events are now created in an unsignalled state. 9235102550Siwasaki 9236114237SnjlThe internal object cache is now purged after table loading and 9237114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 9238114237Snjlthe assumption that object use is greatest during the parse phase 9239193267Sjkimof the entire table (versus the run-time use of individual control 9240126372Snjlmethods.) 9241102550Siwasaki 9242102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 9243102550Siwasaki 9244193267SjkimCode and Data Size: Code and Data optimizations have permitted new 9245126372Snjlfeature development with an actual reduction in the library size. 9246126372SnjlCurrent core subsystem library sizes are shown below. These are 9247126372Snjlthe code and data sizes for the acpica.lib produced by the 9248193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9249126372Snjlany ACPI driver or OSPM code. The debug version of the code 9250126372Snjlincludes the debug output trace mechanism and has a larger code 9251126372Snjland data size. Note that these values will vary depending on the 9252126372Snjlefficiency of the compiler and the compiler options used during 9253126372Snjlgeneration. 9254102550Siwasaki 9255102550Siwasaki Previous Release (11_09_01): 9256114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 9257114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 9258102550Siwasaki 9259102550Siwasaki Current Release: 9260114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 9261114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 9262102550Siwasaki 9263102550Siwasaki 2) Linux: 9264102550Siwasaki 9265114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 9266114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 9267114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 9268114237Snjlnear future. This functionality replaces 9269114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 9270114237Snjl2.4.15-preX release. To enable this feature you must add 9271114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 9272193267Sjkimfor CONFIG_ACPI_BOOT for more information. An IA-64 release is in 9273126372Snjlthe works... 9274102550Siwasaki 9275114237SnjlRestructured the configuration options to allow boot-time table 9276114237Snjlparsing support without inclusion of the ACPI Interpreter (and 9277114237Snjlother) code. 9278102550Siwasaki 9279193267SjkimNOTE: This release does not include fixes for the reported events, 9280126372Snjlpower-down, and thermal passive cooling issues (coming soon). 9281102550Siwasaki 9282102550Siwasaki 3) ASL Compiler: 9283102550Siwasaki 9284114237SnjlAdded additional typechecking for Fields within restricted access 9285114237SnjlOperation Regions. All fields within EC and CMOS regions must be 9286114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 9287114237Snjldeclared with the BufferAcc access type. 9288102550Siwasaki 9289114237SnjlFixed a problem where the listing file output of control methods 9290114237Snjlno longer interleaved the actual AML code with the ASL source 9291114237Snjlcode. 9292102550Siwasaki 9293102550Siwasaki 9294102550Siwasaki 9295167802Sjkim 9296102550Siwasaki---------------------------------------- 9297102550SiwasakiSummary of changes for this label: 11_09_01 9298102550Siwasaki 9299102550Siwasaki1) ACPI CA Core Subsystem: 9300102550Siwasaki 9301114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 9302193267SjkimBuffer, String, or Integer source operand that is smaller than the 9303126372Snjltarget field. In these cases, the source operand is zero-extended 9304126372Snjlto fill the target field. 9305102550Siwasaki 9306104470SiwasakiFixed a problem where a Field starting bit offset (within the 9307104470Siwasakiparent operation region) was calculated incorrectly if the 9308167802Sjkim 9309104470Siwasakialignment of the field differed from the access width. This 9310114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 9311114237Snjlpossibly other fields that use the "AccessAny" keyword. 9312102550Siwasaki 9313114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 9314114237Snjlstores through method arguments did not operate correctly. 9315102550Siwasaki 9316102550Siwasaki2) Linux: 9317102550Siwasaki 9318102550SiwasakiImplemented boot-time ACPI table parsing support 9319114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 9320114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 9321114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 9322193267Sjkimprocessors, memory, and interrupts during setup_arch(). Note that 9323126372Snjlthis patch does not include the required architecture-specific 9324126372Snjlchanges required to apply this information -- subsequent patches 9325126372Snjlwill be posted for both IA32 and IA64 to achieve this. 9326102550Siwasaki 9327114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 9328114237SnjlMochel. This allows IA32 systems to transition to/from various 9329114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 9330114237Snjldriver model and power-manageable drivers will prevent its 9331114237Snjl(successful) use on most systems. 9332102550Siwasaki 9333114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 9334193267Sjkimsubmenu, unified IA32 and IA64 options, added new "Boot using ACPI 9335126372Snjltables" option, etc. 9336102550Siwasaki 9337114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 9338114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 9339114237Snjltransactions. 9340102550Siwasaki 9341102550Siwasaki ---------------------------------------- 9342102550SiwasakiSummary of changes for this label: 11_02_01 9343102550Siwasaki 9344102550Siwasaki1) ACPI CA Core Subsystem: 9345102550Siwasaki 9346102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 9347102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 9348102550Siwasakiimplemented. 9349102550Siwasaki 9350114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 9351114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 9352193267SjkimPciConfiguration(), Read/Write Memory(), and Read/Write Port() now 9353126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 9354193267Sjkimthe value parameter for the address space handler interface is now 9355193267Sjkiman ACPI_INTEGER. OSL implementations of these interfaces must now 9356126372Snjlhandle the case where the Width parameter is 64. 9357102550Siwasaki 9358104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 9359104470Siwasakidisassembly for IndexFields was not supported correctly. 9360102550Siwasaki 9361102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 9362104470Siwasakisupported. During field access, a check is performed to ensure 9363114237Snjlthat the value written to an Index or Bank register is not out of 9364114237Snjlthe range of the register. The Index (or Bank) register is 9365114237Snjlwritten before each access to the field data. Future support will 9366114237Snjlinclude allowing individual IndexFields to be wider than the 9367114237SnjlDataRegister width. 9368102550Siwasaki 9369114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 9370114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 9371114237Snjla boundary case that occurred when a DWORD field was written to a 9372114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 9373114237Snjlinterpreter to write one datum too many. 9374102550Siwasaki 9375102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 9376114237Snjlstarting bit address of a field was incorrectly calculated if the 9377114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 9378114237SnjlQwordAcc). 9379102550Siwasaki 9380104470SiwasakiFields: Fixed a problem where forward references to individual 9381193267SjkimFieldUnits (individual Field names within a Field definition) were 9382126372Snjlnot resolved during the AML table load. 9383102550Siwasaki 9384104470SiwasakiFields: Fixed a problem where forward references from a Field 9385104470Siwasakidefinition to the parent Operation Region definition were not 9386104470Siwasakiresolved during the AML table load. 9387104470Siwasaki 9388114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 9389114237Snjlduring AML table load. 9390102550Siwasaki 9391193267SjkimAcpi Interfaces: Fixed a problem where the AcpiGetName() interface 9392126372Snjlreturned an incorrect name for the root node. 9393102550Siwasaki 9394193267SjkimCode and Data Size: Code and Data optimizations have permitted new 9395126372Snjlfeature development with an actual reduction in the library size. 9396126372SnjlCurrent core subsystem library sizes are shown below. These are 9397126372Snjlthe code and data sizes for the acpica.lib produced by the 9398193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9399126372Snjlany ACPI driver or OSPM code. The debug version of the code 9400126372Snjlincludes the debug output trace mechanism and has a larger code 9401126372Snjland data size. Note that these values will vary depending on the 9402126372Snjlefficiency of the compiler and the compiler options used during 9403126372Snjlgeneration. 9404102550Siwasaki 9405102550Siwasaki Previous Release (10_18_01): 9406114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 9407114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 9408102550Siwasaki 9409102550Siwasaki Current Release: 9410114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 9411114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 9412102550Siwasaki 9413102550Siwasaki 2) Linux: 9414102550Siwasaki 9415102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 9416102550SiwasakiMODULE_LICENSE("GPL") to all modules. 9417102550Siwasaki 9418102550Siwasaki 3) ASL Compiler version X2030: 9419102550Siwasaki 9420104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 9421104470Siwasakiflagged as errors. 9422102550Siwasaki 9423102550Siwasaki 4) Documentation: 9424102550Siwasaki 9425104470SiwasakiProgrammer Reference updated to reflect OSL and address space 9426104470Siwasakihandler interface changes described above. 9427102550Siwasaki 9428102550Siwasaki---------------------------------------- 9429102550SiwasakiSummary of changes for this label: 10_18_01 9430102550Siwasaki 9431102550SiwasakiACPI CA Core Subsystem: 9432102550Siwasaki 9433193267SjkimFixed a problem with the internal object reference count mechanism 9434126372Snjlthat occasionally caused premature object deletion. This resolves 9435126372Snjlall of the outstanding problem reports where an object is deleted 9436193267Sjkimin the middle of an interpreter evaluation. Although this problem 9437126372Snjlonly showed up in rather obscure cases, the solution to the 9438126372Snjlproblem involved an adjustment of all reference counts involving 9439126372Snjlobjects attached to namespace nodes. 9440102550Siwasaki 9441102550SiwasakiFixed a problem with Field support in the interpreter where 9442114237Snjlwriting to an aligned field whose length is an exact multiple (2 9443193267Sjkimor greater) of the field access granularity would cause an attempt 9444126372Snjlto write beyond the end of the field. 9445102550Siwasaki 9446102550SiwasakiThe top level AML opcode execution functions within the 9447102550Siwasakiinterpreter have been renamed with a more meaningful and 9448102550Siwasakiconsistent naming convention. The modules exmonad.c and 9449102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 9450102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 9451102550Siwasaki 9452114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 9453102550Siwasaki 9454114237SnjlFixed a problem where the AML debugger was causing some internal 9455114237Snjlobjects to not be deleted during subsystem termination. 9456102550Siwasaki 9457104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 9458104470Siwasakiwhere the subsystem would fault if the named object to be 9459104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 9460102550Siwasaki 9461102550SiwasakiFixed a problem with IndexFields and BankFields where the 9462114237Snjlsubsystem would fault if the index, data, or bank registers were 9463114237Snjlnot defined in the same scope as the field itself. 9464102550Siwasaki 9465104470SiwasakiAdded printf format string checking for compilers that support 9466104470Siwasakithis feature. Corrected more than 50 instances of issues with 9467104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 9468104470Siwasakithroughout the core subsystem code. 9469102550Siwasaki 9470104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 9471193267Sjkimimplemented in the core - the value "2" since the ACPI 2.0 support 9472126372Snjlis more than 50% implemented. 9473102550Siwasaki 9474114237SnjlEnhanced the output of the AML debugger "dump namespace" command 9475114237Snjlto output in a more human-readable form. 9476102550Siwasaki 9477114237SnjlCurrent core subsystem library code sizes are shown below. These 9478167802Sjkim 9479114237Snjlare the code and data sizes for the acpica.lib produced by the 9480193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9481126372Snjlany ACPI driver or OSPM code. The debug version of the code 9482126372Snjlincludes the full debug trace mechanism -- leading to a much 9483167802Sjkim 9484114237Snjllarger code and data size. Note that these values will vary 9485114237Snjldepending on the efficiency of the compiler and the compiler 9486114237Snjloptions used during generation. 9487102550Siwasaki 9488102550Siwasaki Previous Label (09_20_01): 9489114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 9490114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 9491102550Siwasaki 9492102550Siwasaki This Label: 9493102550Siwasaki 9494114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 9495114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 9496114237Snjl 9497102550SiwasakiLinux: 9498102550Siwasaki 9499104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 9500104470Siwasakiknown ASL/AML problems. 9501102550Siwasaki 9502193267SjkimEnhanced the /proc interface for the thermal zone driver and added 9503126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 9504193267Sjkimfile now includes threshold/policy information, and allows setting 9505126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 9506193267Sjkimto the 'info' file. Examples: "echo tzp=5 > info" sets the polling 9507126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 9508126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 9509102550Siwasaki 9510104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 9511104470Siwasakiwhen loading the control method battery driver. 9512102550Siwasaki 9513102550Siwasaki ---------------------------------------- 9514102550SiwasakiSummary of changes for this label: 09_20_01 9515102550Siwasaki 9516102550Siwasaki ACPI CA Core Subsystem: 9517102550Siwasaki 9518104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 9519104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 9520114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 9521114237Snjlsleeps.) 9522102550Siwasaki 9523104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 9524104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 9525104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 9526104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 9527102550Siwasaki 9528114237SnjlA local double-precision divide/modulo module has been added to 9529114237Snjlenhance portability to OS kernels where a 64-bit math library is 9530114237Snjlnot available. The new module is "utmath.c". 9531102550Siwasaki 9532104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 9533114237Snjlstack. Originally over 2K, the maximum stack usage is now below 9534114237Snjl2K at 1860 bytes (1.82k) 9535102550Siwasaki 9536114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 9537193267Sjkimroot table pointer was not mapped into a logical address properly. 9538102550Siwasaki 9539193267SjkimFixed a problem where a NULL pointer was being dereferenced in the 9540126372Snjlinterpreter code for the ASL Notify operator. 9541102550Siwasaki 9542102550SiwasakiFixed a problem where the use of the ASL Revision operator 9543114237Snjlreturned an error. This operator now returns the current version 9544114237Snjlof the ACPI CA core subsystem. 9545102550Siwasaki 9546114237SnjlFixed a problem where objects passed as control method parameters 9547114237Snjlto AcpiEvaluateObject were always deleted at method termination. 9548114237SnjlHowever, these objects may end up being stored into the namespace 9549114237Snjlby the called method. The object reference count mechanism was 9550114237Snjlapplied to these objects instead of a force delete. 9551102550Siwasaki 9552114237SnjlFixed a problem where static strings or buffers (contained in the 9553114237SnjlAML code) that are declared as package elements within the ASL 9554114237Snjlcode could cause a fault because the interpreter would attempt to 9555114237Snjldelete them. These objects are now marked with the "static 9556114237Snjlobject" flag to prevent any attempt to delete them. 9557102550Siwasaki 9558114237SnjlImplemented an interpreter optimization to use operands directly 9559114237Snjlfrom the state object instead of extracting the operands to local 9560114237Snjlvariables. This reduces stack use and code size, and improves 9561114237Snjlperformance. 9562102550Siwasaki 9563193267SjkimThe module exxface.c was eliminated as it was an unnecessary extra 9564126372Snjllayer of code. 9565102550Siwasaki 9566114237SnjlCurrent core subsystem library code sizes are shown below. These 9567114237Snjlare the code and data sizes for the acpica.lib produced by the 9568193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9569126372Snjlany ACPI driver or OSPM code. The debug version of the code 9570126372Snjlincludes the full debug trace mechanism -- leading to a much 9571114237Snjllarger code and data size. Note that these values will vary 9572114237Snjldepending on the efficiency of the compiler and the compiler 9573114237Snjloptions used during generation. 9574102550Siwasaki 9575102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 9576114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 9577114237SnjlTotal (Previously 195K) 9578102550Siwasaki 9579102550SiwasakiLinux: 9580102550Siwasaki 9581114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 9582114237SnjlInteger objects are now 64 bits wide 9583102550Siwasaki 9584114237SnjlAll Acpi data types and structures are now in lower case. Only 9585114237SnjlAcpi macros are upper case for differentiation. 9586102550Siwasaki 9587102550Siwasaki Documentation: 9588102550Siwasaki 9589102550SiwasakiChanges to the external interfaces as described above. 9590102550Siwasaki 9591102550Siwasaki ---------------------------------------- 9592102550SiwasakiSummary of changes for this label: 08_31_01 9593102550Siwasaki 9594102550Siwasaki ACPI CA Core Subsystem: 9595102550Siwasaki 9596114237SnjlA bug with interpreter implementation of the ASL Divide operator 9597114237Snjlwas found and fixed. The implicit function return value (not the 9598114237Snjlexplicit store operands) was returning the remainder instead of 9599114237Snjlthe quotient. This was a longstanding bug and it fixes several 9600114237Snjlknown outstanding issues on various platforms. 9601102550Siwasaki 9602104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 9603193267Sjkimbeen further optimized for size. There are 700 invocations of the 9604126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 9605126372Snjlthe debug version of the subsystem significantly. 9606102550Siwasaki 9607114237SnjlA stack trace mechanism has been implemented. The maximum stack 9608193267Sjkimusage is about 2K on 32-bit platforms. The debugger command "stat 9609126372Snjlstack" will display the current maximum stack usage. 9610102550Siwasaki 9611114237SnjlAll public symbols and global variables within the subsystem are 9612114237Snjlnow prefixed with the string "Acpi". This keeps all of the 9613114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 9614114237Snjlwith other kernel subsystems. 9615102550Siwasaki 9616114237SnjlMost of the internal fixed lookup tables have been moved into the 9617114237Snjlcode segment via the const operator. 9618102550Siwasaki 9619104470SiwasakiSeveral enhancements have been made to the interpreter to both 9620104470Siwasakireduce the code size and improve performance. 9621102550Siwasaki 9622114237SnjlCurrent core subsystem library code sizes are shown below. These 9623114237Snjlare the code and data sizes for the acpica.lib produced by the 9624193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9625126372Snjlany ACPI driver or OSPM code. The debug version of the code 9626126372Snjlincludes the full debug trace mechanism which contains over 700 9627126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 9628126372Snjlinvocations, and over 900 function exit macro invocations -- 9629126372Snjlleading to a much larger code and data size. Note that these 9630114237Snjlvalues will vary depending on the efficiency of the compiler and 9631114237Snjlthe compiler options used during generation. 9632102550Siwasaki 9633102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 9634102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 9635102550Siwasaki 9636102550Siwasaki Linux: 9637102550Siwasaki 9638104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 9639102550Siwasaki 9640102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 9641102550Siwasaki 9642102550Siwasaki ASL Compiler, version X2026: 9643102550Siwasaki 9644104470SiwasakiFixed a problem introduced in the previous label where the AML 9645167802Sjkim 9646104470Siwasakicode emitted for package objects produced packages with zero 9647104470Siwasakilength. 9648102550Siwasaki 9649102550Siwasaki ---------------------------------------- 9650102550SiwasakiSummary of changes for this label: 08_16_01 9651102550Siwasaki 9652102550SiwasakiACPI CA Core Subsystem: 9653102550Siwasaki 9654114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 9655114237SnjlAML interpreter (These are already supported by the Intel ASL 9656193267Sjkimcompiler): ToDecimalString, ToHexString, ToString, ToInteger, and 9657126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 9658126372SnjlAML parser, debugger, and disassembler. 9659102550Siwasaki 9660114237SnjlThe internal memory tracking mechanism (leak detection code) has 9661114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 9662114237Snjlblock is no longer allocated for each memory allocation), and now 9663114237Snjlsupports all of the internal object caches. 9664102550Siwasaki 9665114237SnjlThe data structures and code for the internal object caches have 9666114237Snjlbeen coelesced and optimized so that there is a single cache and 9667114237Snjlmemory list data structure and a single group of functions that 9668114237Snjlimplement generic cache management. This has reduced the code 9669114237Snjlsize in both the debug and release versions of the subsystem. 9670102550Siwasaki 9671193267SjkimThe DEBUG_PRINT macro(s) have been optimized for size and replaced 9672126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 9673126372Snjldifferent, because it generates a single call to an internal 9674126372Snjlfunction. This results in a savings of about 90 bytes per 9675193267Sjkiminvocation, resulting in an overall code and data savings of about 9676126372Snjl16% in the debug version of the subsystem. 9677102550Siwasaki 9678102550Siwasaki Linux: 9679102550Siwasaki 9680114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 9681114237Snjlmachines. 9682102550Siwasaki 9683102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 9684102550Siwasaki 9685102550SiwasakiFurther tweaked source code Linuxization. 9686102550Siwasaki 9687102550SiwasakiOther minor fixes. 9688102550Siwasaki 9689102550Siwasaki ASL Compiler: 9690102550Siwasaki 9691114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 9692102550Siwasaki 9693114237SnjlFixed a problem where the optional length parameter for the ACPI 9694114237Snjl2.0 ToString operator. 9695102550Siwasaki 9696114237SnjlFixed multiple extraneous error messages when a syntax error is 9697114237Snjldetected within the declaration line of a control method. 9698102550Siwasaki 9699102550Siwasaki ---------------------------------------- 9700102550SiwasakiSummary of changes for this label: 07_17_01 9701102550Siwasaki 9702102550SiwasakiACPI CA Core Subsystem: 9703102550Siwasaki 9704104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 9705193267SjkimACPI table via the ACPI signature. The interface can be called at 9706126372Snjlany time during kernel initialization, even before the kernel 9707193267Sjkimvirtual memory manager is initialized and paging is enabled. This 9708126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 9709126372Snjlbefore the ACPI CA subsystem is initialized. 9710102550Siwasaki 9711104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 9712104470Siwasakicould be resolved to the incorrect address under the following 9713114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 9714114237Snjlparent operation region is not defined on a DWORD boundary. 9715102550Siwasaki 9716114237SnjlFixed a problem where the interpreter is not being locked during 9717114237Snjlnamespace initialization (during execution of the _INI control 9718114237Snjlmethods), causing an error when an attempt is made to release it 9719114237Snjllater. 9720102550Siwasaki 9721104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 9722114237Snjlongoing throughout the rest of this year. In this label, The Mod 9723114237Snjloperator is implemented. 9724102550Siwasaki 9725102550SiwasakiAdded a new data type to contain full PCI addresses named 9726193267SjkimACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device, 9727126372Snjland Function values. 9728102550Siwasaki 9729102550Siwasaki Linux: 9730102550Siwasaki 9731102550SiwasakiEnhanced the Linux version of the source code to change most 9732102550Siwasakicapitalized ACPI type names to lowercase. For example, all 9733114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 9734114237Snjlresult in a large diff, but the change is strictly cosmetic and 9735114237Snjlaligns the CA code closer to the Linux coding standard. 9736102550Siwasaki 9737102550SiwasakiOSL Interfaces: 9738102550Siwasaki 9739193267SjkimThe interfaces to the PCI configuration space have been changed to 9740193267Sjkimadd the PCI Segment number and to split the single 32-bit combined 9741126372SnjlDeviceFunction field into two 16-bit fields. This was 9742114237Snjlaccomplished by moving the four values that define an address in 9743114237SnjlPCI configuration space (segment, bus, device, and function) to 9744114237Snjlthe new ACPI_PCI_ID structure. 9745102550Siwasaki 9746104470SiwasakiThe changes to the PCI configuration space interfaces led to a 9747104470Siwasakireexamination of the complete set of address space access 9748114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 9749114237Snjlinterfaces have proven difficult to maintain (any small change 9750193267Sjkimmust be propagated across at least 6 interfaces) and do not easily 9751193267Sjkimallow for future expansion to 64 bits if necessary. Also, on some 9752126372Snjlsystems, it would not be appropriate to demultiplex the access 9753126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 9754114237Snjlcorresponding native OS interfaces contain a similar access width 9755114237Snjlparameter. For these reasons, the 18 address space interfaces 9756114237Snjlhave been replaced by these 6 new ones: 9757102550Siwasaki 9758102550SiwasakiAcpiOsReadPciConfiguration 9759102550SiwasakiAcpiOsWritePciConfiguration 9760102550SiwasakiAcpiOsReadMemory 9761102550SiwasakiAcpiOsWriteMemory 9762102550SiwasakiAcpiOsReadPort 9763102550SiwasakiAcpiOsWritePort 9764102550Siwasaki 9765114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 9766114237Snjlto perform the platform and/or OS-specific actions necessary to 9767114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 9768114237Snjlinterface will simply call down to the CA core to perform the low- 9769114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 9770114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 9771167802Sjkim 9772114237Snjlremain OS and platform independent. 9773102550Siwasaki 9774104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 9775114237Snjl"function code and pointer" interface for various miscellaneous 9776114237Snjlsignals and notifications that must be made to the host OS. The 9777114237Snjlfirst such signals are intended to support the ASL Fatal and 9778114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 9779114237Snjlinterface has been obsoleted. 9780102550Siwasaki 9781102550SiwasakiThe definition of the AcpiFormatException interface has been 9782114237Snjlchanged to simplify its use. The caller no longer must supply a 9783114237Snjlbuffer to the call; A pointer to a const string is now returned 9784114237Snjldirectly. This allows the call to be easily used in printf 9785114237Snjlstatements, etc. since the caller does not have to manage a local 9786114237Snjlbuffer. 9787102550Siwasaki 9788114237Snjl 9789102550Siwasaki ASL Compiler, Version X2025: 9790102550Siwasaki 9791114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 9792114237Snjland are fully functional. They will work with all ACPI 1.0 9793193267Sjkiminterpreters, since the operators are simply translated to If/Else 9794126372Snjlpairs. 9795102550Siwasaki 9796104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 9797104470Siwasakiwith 1.0 interpreters, for the same reason. 9798102550Siwasaki 9799114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 9800114237Snjlpackages have a separate opcode, and their size is determined by 9801114237Snjlthe interpreter at run-time. 9802102550Siwasaki 9803193267SjkimDocumentation The ACPI CA Programmer Reference has been updated to 9804126372Snjlreflect the new interfaces and changes to existing interfaces. 9805102550Siwasaki 9806102550Siwasaki ------------------------------------------ 9807102550SiwasakiSummary of changes for this label: 06_15_01 9808102550Siwasaki 9809102550Siwasaki ACPI CA Core Subsystem: 9810102550Siwasaki 9811102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 9812114237Snjlobject would get its byte address inadvertently rounded down to 9813114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 9814102550Siwasaki 9815102550Siwasaki ASL Compiler, version X2024: 9816102550Siwasaki 9817114237SnjlFixed a problem where the Switch() operator would either fault or 9818114237Snjlhang the compiler. Note however, that the AML code for this ACPI 9819114237Snjl2.0 operator is not yet implemented. 9820102550Siwasaki 9821114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 9822114237Snjltimings. 9823102550Siwasaki 9824114237SnjlImplementation of the CreateField operator automatically converts 9825114237Snjla reference to a named field within a resource descriptor from a 9826114237Snjlbyte offset to a bit offset if required. 9827102550Siwasaki 9828102550SiwasakiAdded some missing named fields from the resource descriptor 9829193267Sjkimsupport. These are the names that are automatically created by the 9830126372Snjlcompiler to reference fields within a descriptor. They are only 9831126372Snjlvalid at compile time and are not passed through to the AML 9832114237Snjlinterpreter. 9833102550Siwasaki 9834104470SiwasakiResource descriptor named fields are now typed as Integers and 9835104470Siwasakisubject to compile-time typechecking when used in expressions. 9836102550Siwasaki 9837102550Siwasaki ------------------------------------------ 9838102550SiwasakiSummary of changes for this label: 05_18_01 9839102550Siwasaki 9840102550Siwasaki ACPI CA Core Subsystem: 9841102550Siwasaki 9842114237SnjlFixed a couple of problems in the Field support code where bits 9843193267Sjkimfrom adjacent fields could be returned along with the proper field 9844126372Snjlbits. Restructured the field support code to improve performance, 9845126372Snjlreadability and maintainability. 9846102550Siwasaki 9847114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 9848114237Snjlinto the output, saving hundreds of copies of procedure name 9849114237Snjlstrings within the source, shrinking the memory footprint of the 9850114237Snjldebug version of the core subsystem. 9851102550Siwasaki 9852102550Siwasaki Source Code Structure: 9853102550Siwasaki 9854104470SiwasakiThe source code directory tree was restructured to reflect the 9855114237Snjlcurrent organization of the component architecture. Some files 9856114237Snjland directories have been moved and/or renamed. 9857102550Siwasaki 9858102550Siwasaki Linux: 9859102550Siwasaki 9860102550SiwasakiFixed leaking kacpidpc processes. 9861102550Siwasaki 9862102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 9863102550Siwasakiopened. 9864102550Siwasaki 9865102550Siwasaki ASL Compiler, version X2020: 9866102550Siwasaki 9867114237SnjlMemory allocation performance enhancement - over 24X compile time 9868114237Snjlimprovement on large ASL files. Parse nodes and namestring 9869114237Snjlbuffers are now allocated from a large internal compiler buffer. 9870102550Siwasaki 9871102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 9872102550Siwasakispecified 9873102550Siwasaki 9874193267SjkimThe "-d" debug output option now sends all output to the .DBG file 9875126372Snjlinstead of the console. 9876102550Siwasaki 9877102550Siwasaki"External" second parameter is now optional 9878102550Siwasaki 9879102550Siwasaki"ElseIf" syntax now properly allows the predicate 9880102550Siwasaki 9881102550SiwasakiLast operand to "Load" now recognized as a Target operand 9882102550Siwasaki 9883102550SiwasakiDebug object can now be used anywhere as a normal object. 9884102550Siwasaki 9885102550SiwasakiResourceTemplate now returns an object of type BUFFER 9886102550Siwasaki 9887102550SiwasakiEISAID now returns an object of type INTEGER 9888102550Siwasaki 9889102550Siwasaki"Index" now works with a STRING operand 9890102550Siwasaki 9891102550Siwasaki"LoadTable" now accepts optional parameters 9892102550Siwasaki 9893102550Siwasaki"ToString" length parameter is now optional 9894102550Siwasaki 9895102550Siwasaki"Interrupt (ResourceType," parse error fixed. 9896102550Siwasaki 9897104470Siwasaki"Register" with a user-defined region space parse error fixed 9898102550Siwasaki 9899114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 9900114237Snjlfixed 9901102550Siwasaki 9902102550Siwasaki"Revision" is now an object of type INTEGER. 9903102550Siwasaki 9904102550Siwasaki 9905102550Siwasaki 9906102550Siwasaki------------------------------------------ 9907102550SiwasakiSummary of changes for this label: 05_02_01 9908102550Siwasaki 9909102550SiwasakiLinux: 9910102550Siwasaki 9911102550Siwasaki/proc/acpi/event now blocks properly. 9912102550Siwasaki 9913102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 9914102550Siwasaki/proc/acpi/dsdt. 9915102550Siwasaki 9916102550Siwasaki ACPI CA Core Subsystem: 9917102550Siwasaki 9918193267SjkimFixed a problem introduced in the previous label where some of the 9919126372Snjl"small" resource descriptor types were not recognized. 9920102550Siwasaki 9921193267SjkimImproved error messages for the case where an ASL Field is outside 9922126372Snjlthe range of the parent operation region. 9923102550Siwasaki 9924102550Siwasaki ASL Compiler, version X2018: 9925102550Siwasaki 9926167802Sjkim 9927193267SjkimAdded error detection for ASL Fields that extend beyond the length 9928126372Snjlof the parent operation region (only if the length of the region 9929126372Snjlis known at compile time.) This includes fields that have a 9930126372Snjlminimum access width that is smaller than the parent region, and 9931126372Snjlindividual field units that are partially or entirely beyond the 9932126372Snjlextent of the parent. 9933102550Siwasaki 9934102550Siwasaki 9935102550Siwasaki 9936102550Siwasaki------------------------------------------ 9937102550SiwasakiSummary of changes for this label: 04_27_01 9938102550Siwasaki 9939102550Siwasaki ACPI CA Core Subsystem: 9940102550Siwasaki 9941193267SjkimFixed a problem where the namespace mutex could be released at the 9942126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 9943102550Siwasaki 9944104470SiwasakiAdded optional thread ID output for debug traces, to simplify 9945114237Snjldebugging of multiple threads. Added context switch notification 9946114237Snjlwhen the debug code realizes that a different thread is now 9947114237Snjlexecuting ACPI code. 9948102550Siwasaki 9949114237SnjlSome additional external data types have been prefixed with the 9950114237Snjlstring "ACPI_" for consistency. This may effect existing code. 9951193267SjkimThe data types affected are the external callback typedefs - e.g., 9952167802Sjkim 9953126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 9954102550Siwasaki 9955102550Siwasaki Linux: 9956102550Siwasaki 9957102550SiwasakiFixed an issue with the OSL semaphore implementation where a 9958102550Siwasakithread was waking up with an error from receiving a SIGCHLD 9959102550Siwasakisignal. 9960102550Siwasaki 9961114237SnjlLinux version of ACPI CA now uses the system C library for string 9962114237Snjlmanipulation routines instead of a local implementation. 9963102550Siwasaki 9964102550SiwasakiCleaned up comments and removed TBDs. 9965102550Siwasaki 9966102550Siwasaki ASL Compiler, version X2017: 9967102550Siwasaki 9968102550SiwasakiEnhanced error detection and reporting for all file I/O 9969102550Siwasakioperations. 9970102550Siwasaki 9971102550Siwasaki Documentation: 9972102550Siwasaki 9973102550SiwasakiProgrammer Reference updated to version 1.06. 9974102550Siwasaki 9975102550Siwasaki 9976102550Siwasaki 9977102550Siwasaki------------------------------------------ 9978102550SiwasakiSummary of changes for this label: 04_13_01 9979102550Siwasaki 9980102550Siwasaki ACPI CA Core Subsystem: 9981102550Siwasaki 9982102550SiwasakiRestructured support for BufferFields and RegionFields. 9983104470SiwasakiBankFields support is now fully operational. All known 32-bit 9984114237Snjllimitations on field sizes have been removed. Both BufferFields 9985114237Snjland (Operation) RegionFields are now supported by the same field 9986114237Snjlmanagement code. 9987102550Siwasaki 9988114237SnjlResource support now supports QWORD address and IO resources. The 9989114237Snjl16/32/64 bit address structures and the Extended IRQ structure 9990114237Snjlhave been changed to properly handle Source Resource strings. 9991102550Siwasaki 9992114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 9993193267Sjkimcondition internally and must never be returned by AcpiOsThreadId. 9994126372SnjlThis reserved value was changed from 0 since Unix systems allow a 9995126372Snjlthread ID of 0. 9996102550Siwasaki 9997102550SiwasakiLinux: 9998102550Siwasaki 9999102550SiwasakiDriver code reorganized to enhance portability 10000102550Siwasaki 10001102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 10002102550Siwasaki 10003102550SiwasakiFixed the EC driver to honor _GLK. 10004102550Siwasaki 10005102550SiwasakiASL Compiler, version X2016: 10006102550Siwasaki 10007114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 10008114237Snjladdress space was set to 0, not 0x7f as it should be. 10009102550Siwasaki 10010102550Siwasaki ------------------------------------------ 10011102550SiwasakiSummary of changes for this label: 03_13_01 10012102550Siwasaki 10013102550Siwasaki ACPI CA Core Subsystem: 10014102550Siwasaki 10015104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 10016104470Siwasakipresent. 10017102550Siwasaki 10018193267SjkimNotify handler fix - notifies are deferred until the parent method 10019126372Snjlcompletes execution. This fixes the "mutex already acquired" 10020126372Snjlissue seen occasionally. 10021102550Siwasaki 10022104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 10023114237Snjlfound to cause compatibility problems with existing ASL/AML. The 10024114237Snjlconvert "result-to-target-type" implementation has been removed 10025114237Snjlfor stores to method Args and Locals. Source operand conversion 10026114237Snjlis still fully implemented. Possible changes to ACPI 2.0 10027114237Snjlspecification pending. 10028102550Siwasaki 10029104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 10030104470Siwasakilength. 10031102550Siwasaki 10032102550SiwasakiFix for compiler warnings for 64-bit compiles. 10033102550Siwasaki 10034102550Siwasaki Linux: 10035102550Siwasaki 10036102550Siwasaki/proc output aligned for easier parsing. 10037102550Siwasaki 10038102550SiwasakiRelease-version compile problem fixed. 10039102550Siwasaki 10040104470SiwasakiNew kernel configuration options documented in Configure.help. 10041102550Siwasaki 10042102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 10043102550Siwasakicontext" message. 10044102550Siwasaki 10045102550Siwasaki OSPM: 10046102550Siwasaki 10047102550SiwasakiPower resource driver integrated with bus manager. 10048102550Siwasaki 10049102550SiwasakiFixed kernel fault during active cooling for thermal zones. 10050102550Siwasaki 10051102550SiwasakiSource Code: 10052102550Siwasaki 10053102550SiwasakiThe source code tree has been restructured. 10054102550Siwasaki 10055102550Siwasaki 10056102550Siwasaki 10057102550Siwasaki------------------------------------------ 10058102550SiwasakiSummary of changes for this label: 03_02_01 10059102550Siwasaki 10060102550Siwasaki Linux OS Services Layer (OSL): 10061102550Siwasaki 10062102550SiwasakiMajor revision of all Linux-specific code. 10063102550Siwasaki 10064102550SiwasakiModularized all ACPI-specific drivers. 10065102550Siwasaki 10066102550SiwasakiAdded new thermal zone and power resource drivers. 10067102550Siwasaki 10068114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 10069102550Siwasaki 10070102550SiwasakiNew kernel configuration options. 10071102550Siwasaki 10072102550Siwasaki Linux known issues: 10073102550Siwasaki 10074114237SnjlNew kernel configuration options not documented in Configure.help 10075114237Snjlyet. 10076102550Siwasaki 10077114237Snjl 10078102550SiwasakiModule dependencies not currently implemented. If used, they 10079102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 10080102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 10081102550Siwasaki 10082102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 10083102550Siwasaki 10084102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 10085102550Siwasaki 10086104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 10087104470Siwasakimessage. 10088102550Siwasaki 10089104470SiwasakiSome systems may fail with "execution mutex already acquired" 10090104470Siwasakimessage. 10091102550Siwasaki 10092102550Siwasaki ACPI CA Core Subsystem: 10093102550Siwasaki 10094114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 10095193267Sjkimfor the deadlock detection code. Defined to return a non-zero, 32- 10096126372Snjlbit thread ID for the currently executing thread. May be a non- 10097126372Snjlzero constant integer on single-thread systems. 10098102550Siwasaki 10099193267SjkimImplemented deadlock detection for internal subsystem mutexes. We 10100126372Snjlmay add conditional compilation for this code (debug only) later. 10101102550Siwasaki 10102104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 10103114237Snjlincludes multiple acquires/releases by owner and support for the 10104167802Sjkim 10105114237SnjlMutex SyncLevel parameter. 10106102550Siwasaki 10107102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 10108104470SiwasakiMutexes that have been acquired but not released when a thread 10109114237Snjlexits the interpreter. This forces conformance to the ACPI spec 10110114237Snjl("All mutexes must be released when an invocation exits") and 10111114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 10112114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 10113114237Snjlcontinues to misbehave (which it will). 10114102550Siwasaki 10115104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 10116104470Siwasakisupport. 10117102550Siwasaki 10118104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 10119114237Snjlspec does in fact allow recursive method calls.) The number of 10120114237Snjlrecursive calls is subject to the restrictions imposed by the 10121114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 10122104470Siwasakiparameter. 10123102550Siwasaki 10124102550SiwasakiImplemented support for the SyncLevel parameter for control 10125102550Siwasakimethods (ACPI 2.0 feature) 10126102550Siwasaki 10127114237SnjlFixed a deadlock problem when multiple threads attempted to use 10128114237Snjlthe interpreter. 10129102550Siwasaki 10130102550SiwasakiFixed a problem where the string length of a String package 10131102550Siwasakielement was not always set in a package returned from 10132102550SiwasakiAcpiEvaluateObject. 10133102550Siwasaki 10134114237SnjlFixed a problem where the length of a String package element was 10135114237Snjlnot always included in the length of the overall package returned 10136114237Snjlfrom AcpiEvaluateObject. 10137102550Siwasaki 10138102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 10139102550Siwasakimanager. This manager keeps a list of all outstanding 10140193267Sjkimallocations, and can therefore detect memory leaks and attempts to 10141126372Snjlfree memory blocks more than once. Useful for code such as the 10142114237Snjlpower manager, etc. May not be appropriate for device drivers. 10143114237SnjlPerformance with the debug code enabled is slow. 10144102550Siwasaki 10145102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 10146102550Siwasaki 10147102550Siwasaki ASL Compiler Version X2015: 10148102550Siwasaki 10149102550SiwasakiIntegrated changes to allow the compiler to be generated on 10150102550Siwasakimultiple platforms. 10151102550Siwasaki 10152102550SiwasakiLinux makefile added to generate the compiler on Linux 10153102550Siwasaki 10154102550Siwasaki Source Code: 10155102550Siwasaki 10156102550SiwasakiAll platform-specific headers have been moved to their own 10157102550Siwasakisubdirectory, Include/Platform. 10158102550Siwasaki 10159102550SiwasakiNew source file added, Interpreter/ammutex.c 10160102550Siwasaki 10161102550SiwasakiNew header file, Include/acstruct.h 10162102550Siwasaki 10163102550Siwasaki Documentation: 10164102550Siwasaki 10165114237SnjlThe programmer reference has been updated for the following new 10166114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 10167102550Siwasaki 10168102550Siwasaki ------------------------------------------ 10169102550SiwasakiSummary of changes for this label: 02_08_01 10170102550Siwasaki 10171102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 10172193267Sjkimincorrectly returned if the return resource buffer was larger than 10173126372Snjlthe actual data (in the resource interfaces). 10174102550Siwasaki 10175114237SnjlReferences to named objects within packages are resolved to the 10176167802Sjkim 10177114237Snjlfull pathname string before packages are returned directly (via 10178114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 10179114237Snjlinterfaces. 10180102550Siwasaki 10181102550SiwasakiLinux OS Services Layer (OSL): 10182102550Siwasaki 10183102550SiwasakiImproved /proc battery interface. 10184102550Siwasaki 10185102550Siwasaki 10186104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 10187102550Siwasaki 10188102550SiwasakiASL Compiler Version X2014: 10189102550Siwasaki 10190114237SnjlAll defined method arguments can now be used as local variables, 10191114237Snjlincluding the ones that are not actually passed in as parameters. 10192114237SnjlThe compiler tracks initialization of the arguments and issues an 10193114237Snjlexception if they are used without prior assignment (just like 10194114237Snjllocals). 10195102550Siwasaki 10196193267SjkimThe -o option now specifies a filename prefix that is used for all 10197126372Snjloutput files, including the AML output file. Otherwise, the 10198114237Snjldefault behavior is as follows: 1) the AML goes to the file 10199114237Snjlspecified in the DSDT. 2) all other output files use the input 10200114237Snjlsource filename as the base. 10201102550Siwasaki 10202102550Siwasaki ------------------------------------------ 10203102550SiwasakiSummary of changes for this label: 01_25_01 10204102550Siwasaki 10205114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 10206114237Snjlstore support within the interpreter. This includes support for 10207114237Snjlthe Store operator as well as any ASL operators that include a 10208114237Snjltarget operand. 10209102550Siwasaki 10210102550SiwasakiPartially implemented support for Implicit Result-to-Target 10211114237Snjlconversion. This is when a result object is converted on the fly 10212114237Snjlto the type of an existing target object. Completion of this 10213114237Snjlsupport is pending further analysis of the ACPI specification 10214114237Snjlconcerning this matter. 10215102550Siwasaki 10216114237SnjlCPU-specific code has been removed from the subsystem (hardware 10217114237Snjldirectory). 10218102550Siwasaki 10219102550SiwasakiNew Power Management Timer functions added 10220102550Siwasaki 10221114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 10222114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 10223102550Siwasaki 10224102550SiwasakiFixed C2 and C3 latency calculations. 10225102550Siwasaki 10226102550Siwasaki 10227114237SnjlWe no longer use the compilation date for the version message on 10228193267Sjkiminitialization, but retrieve the version from AcpiGetSystemInfo(). 10229102550Siwasaki 10230102550SiwasakiIncorporated for fix Sony VAIO machines. 10231102550Siwasaki 10232104470SiwasakiDocumentation: The Programmer Reference has been updated and 10233104470Siwasakireformatted. 10234102550Siwasaki 10235102550Siwasaki 10236102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 10237102550Siwasakinumbering and error reporting could get out of sync in the 10238102550Siwasakipresence of multiple include files. 10239102550Siwasaki 10240102550Siwasaki ------------------------------------------ 10241102550SiwasakiSummary of changes for this label: 01_15_01 10242102550Siwasaki 10243102550SiwasakiCore ACPI CA Subsystem: 10244102550Siwasaki 10245114237SnjlImplemented support for type conversions in the execution of the 10246114237SnjlASL Concatenate operator (The second operand is converted to 10247114237Snjlmatch the type of the first operand before concatenation.) 10248102550Siwasaki 10249102550SiwasakiSupport for implicit source operand conversion is partially 10250114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 10251114237SnjlString are freely interchangeable for most ASL operators and are 10252114237Snjlconverted by the interpreter on the fly as required. Implicit 10253114237SnjlTarget operand conversion (where the result is converted to the 10254114237Snjltarget type before storing) is not yet implemented. 10255102550Siwasaki 10256102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 10257102550Siwasaki 10258193267SjkimProblem fixed where a field read on an aligned field could cause a 10259126372Snjlread past the end of the field. 10260102550Siwasaki 10261114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 10262114237Snjldoes not return a value, but the caller expects one. (The ASL 10263114237Snjlcompiler flags this as a warning.) 10264102550Siwasaki 10265102550SiwasakiASL Compiler: 10266102550Siwasaki 10267102550SiwasakiVersion X2011: 10268102550Siwasaki1. Static typechecking of all operands is implemented. This 10269193267Sjkimprevents the use of invalid objects (such as using a Package where 10270126372Snjlan Integer is required) at compile time instead of at interpreter 10271126372Snjlrun-time. 10272114237Snjl2. The ASL source line is printed with ALL errors and warnings. 10273102550Siwasaki3. Bug fix for source EOF without final linefeed. 10274193267Sjkim4. Debug option is split into a parse trace and a namespace trace. 10275102550Siwasaki5. Namespace output option (-n) includes initial values for 10276102550Siwasakiintegers and strings. 10277102550Siwasaki6. Parse-only option added for quick syntax checking. 10278102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 10279102550Siwasaki 10280102550SiwasakiVersion X2012: 10281102550Siwasaki1. Relaxed typechecking to allow interchangeability between 10282114237Snjlstrings, integers, and buffers. These types are now converted by 10283114237Snjlthe interpreter at runtime. 10284114237Snjl2. Compiler reports time taken by each internal subsystem in the 10285114237Snjldebug output file. 10286102550Siwasaki 10287102550Siwasaki 10288102550Siwasaki ------------------------------------------ 10289102550SiwasakiSummary of changes for this label: 12_14_00 10290102550Siwasaki 10291102550SiwasakiASL Compiler: 10292102550Siwasaki 10293104470SiwasakiThis is the first official release of the compiler. Since the 10294104470Siwasakicompiler requires elements of the Core Subsystem, this label 10295104470Siwasakisynchronizes everything. 10296102550Siwasaki 10297102550Siwasaki------------------------------------------ 10298102550SiwasakiSummary of changes for this label: 12_08_00 10299102550Siwasaki 10300102550Siwasaki 10301114237SnjlFixed a problem where named references within the ASL definition 10302114237Snjlof both OperationRegions and CreateXXXFields did not work 10303114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 10304114237Snjlinitialization of the region/field. This is similar (but not 10305114237Snjlrelated internally) to the problem that was fixed in the last 10306114237Snjllabel. 10307114237Snjl 10308102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 10309102550Siwasakifunctions ToBCD and FromBCD. 10310102550Siwasaki 10311102550SiwasakiUpdated all legal headers to include "2000" in the copyright 10312102550Siwasakiyears. 10313102550Siwasaki 10314102550Siwasaki ------------------------------------------ 10315102550SiwasakiSummary of changes for this label: 12_01_00 10316102550Siwasaki 10317193267SjkimFixed a problem where method invocations within the ASL definition 10318126372Snjlof both OperationRegions and CreateXXXFields did not work 10319126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 10320114237Snjlinitialization of the region/field: 10321102550Siwasaki 10322114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 10323114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 10324114237Snjl(0x3005) 10325102550Siwasaki 10326102550SiwasakiFixed a problem where operators with more than one nested 10327104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 10328114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 10329114237Snjlproblem that has gone unnoticed until now. 10330102550Siwasaki 10331102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 10332102550Siwasaki 10333114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 10334114237Snjlprevious build (The prefix part of a relative path was handled 10335114237Snjlincorrectly). 10336102550Siwasaki 10337114237SnjlFixed a problem where Operation Region initialization failed if 10338114237Snjlthe operation region name was a "namepath" instead of a simple 10339114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 10340102550Siwasaki 10341114237SnjlFixed a problem where an assignment to a local variable via the 10342114237Snjlindirect RefOf mechanism only worked for the first such 10343102550Siwasakiassignment. Subsequent assignments were ignored. 10344102550Siwasaki 10345102550Siwasaki ------------------------------------------ 10346102550SiwasakiSummary of changes for this label: 11_15_00 10347102550Siwasaki 10348193267SjkimACPI 2.0 table support with backwards support for ACPI 1.0 and the 10349193267Sjkim0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables, 10350126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 10351126372Snjlgrammar terms at this time. 10352102550Siwasaki 10353193267SjkimAll ACPI hardware access is via the GAS structures in the ACPI 2.0 10354126372SnjlFADT. 10355102550Siwasaki 10356193267SjkimAll physical memory addresses across all platforms are now 64 bits 10357126372Snjlwide. Logical address width remains dependent on the platform 10358126372Snjl(i.e., "void *"). 10359102550Siwasaki 10360114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 10361102550Siwasaki 10362114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 10363114237Snjl2.0 specification. 10364102550Siwasaki 10365104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 10366104470Siwasakirevision number less than 2 use 32-bit integers only. 10367102550Siwasaki 10368114237SnjlFixed a problem where the evaluation of OpRegion operands did not 10369114237Snjlalways resolve them to numbers properly. 10370102550Siwasaki 10371102550Siwasaki------------------------------------------ 10372102550SiwasakiSummary of changes for this label: 10_20_00 10373102550Siwasaki 10374114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 10375114237SnjlCBN_ OpRegions when the _STA returns 0x8. 10376102550Siwasaki 10377104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 10378104470Siwasakivalues before a package object is returned 10379102550Siwasaki 10380104470SiwasakiFix for method call as predicate to if/while construct causing 10381104470Siwasakiincorrect if/while behavior 10382102550Siwasaki 10383114237SnjlFix for Else block package lengths sometimes calculated wrong (if 10384114237Snjlblock > 63 bytes) 10385102550Siwasaki 10386102550SiwasakiFix for Processor object length field, was always zero 10387102550Siwasaki 10388102550SiwasakiTable load abort if FACP sanity check fails 10389102550Siwasaki 10390102550SiwasakiFix for problem with Scope(name) if name already exists 10391102550Siwasaki 10392102550SiwasakiWarning emitted if a named object referenced cannot be found 10393102550Siwasaki(resolved) during method execution. 10394102550Siwasaki 10395102550Siwasaki 10396102550Siwasaki 10397102550Siwasaki 10398102550Siwasaki 10399102550Siwasaki------------------------------------------ 10400102550SiwasakiSummary of changes for this label: 9_29_00 10401102550Siwasaki 10402114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 10403114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 10404114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 10405114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 10406114237SnjlAcpiLoadTables 10407102550Siwasaki 10408193267SjkimNote: These interface changes require changes to all existing OSDs 10409102550Siwasaki 10410114237SnjlThe PCI_Config default address space handler is always installed 10411114237Snjlat the root namespace object. 10412102550Siwasaki 10413102550Siwasaki------------------------------------------- 10414102550SiwasakiSummary of changes for this label: 09_15_00 10415102550Siwasaki 10416102550SiwasakiThe new initialization architecture is implemented. New 10417114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 10418114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 10419167802Sjkim 10420114237Snjl(Namespace is automatically loaded when a table is loaded) 10421102550Siwasaki 10422193267SjkimThe ACPI_OPERAND_OBJECT has been optimized to shrink its size from 10423126372Snjl52 bytes to 32 bytes. There is usually one of these for every 10424126372Snjlnamespace object, so the memory savings is significant. 10425102550Siwasaki 10426114237SnjlImplemented just-in-time evaluation of the CreateField operators. 10427102550Siwasaki 10428102550SiwasakiBug fixes for IA-64 support have been integrated. 10429102550Siwasaki 10430102550SiwasakiAdditional code review comments have been implemented 10431102550Siwasaki 10432193267SjkimThe so-called "third pass parse" has been replaced by a final walk 10433193267Sjkimthrough the namespace to initialize all operation regions (address 10434126372Snjlspaces) and fields that have not yet been initialized during the 10435126372Snjlexecution of the various _INI and REG methods. 10436102550Siwasaki 10437102550SiwasakiNew file - namespace/nsinit.c 10438102550Siwasaki 10439102550Siwasaki------------------------------------------- 10440102550SiwasakiSummary of changes for this label: 09_01_00 10441102550Siwasaki 10442193267SjkimNamespace manager data structures have been reworked to change the 10443126372Snjlprimary object from a table to a single object. This has 10444193267Sjkimresulted in dynamic memory savings of 3X within the namespace and 10445126372Snjl2X overall in the ACPI CA subsystem. 10446102550Siwasaki 10447102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 10448102550Siwasakiinadvertently left commented out. 10449102550Siwasaki 10450114237SnjlReduced the warning count when generating the source with the GCC 10451114237Snjlcompiler. 10452102550Siwasaki 10453102550SiwasakiRevision numbers added to each module header showing the 10454104470SiwasakiSourceSafe version of the file. Please refer to this version 10455114237Snjlnumber when giving us feedback or comments on individual modules. 10456102550Siwasaki 10457114237SnjlThe main object types within the subsystem have been renamed to 10458114237Snjlclarify their purpose: 10459102550Siwasaki 10460102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 10461102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 10462102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 10463102550Siwasaki 10464114237SnjlNOTE: no changes to the initialization sequence are included in 10465114237Snjlthis label. 10466102550Siwasaki 10467102550Siwasaki------------------------------------------- 10468102550SiwasakiSummary of changes for this label: 08_23_00 10469102550Siwasaki 10470102550SiwasakiFixed problem where TerminateControlMethod was being called 10471102550Siwasakimultiple times per method 10472102550Siwasaki 10473193267SjkimFixed debugger problem where single stepping caused a semaphore to 10474126372Snjlbe oversignalled 10475102550Siwasaki 10476104470SiwasakiImproved performance through additional parse object caching - 10477104470Siwasakiadded ACPI_EXTENDED_OP type 10478102550Siwasaki 10479102550Siwasaki------------------------------------------- 10480102550SiwasakiSummary of changes for this label: 08_10_00 10481102550Siwasaki 10482102550SiwasakiParser/Interpreter integration: Eliminated the creation of 10483102550Siwasakicomplete parse trees for ACPI tables and control methods. 10484114237SnjlInstead, parse subtrees are created and then deleted as soon as 10485193267Sjkimthey are processed (Either entered into the namespace or executed 10486126372Snjlby the interpreter). This reduces the use of dynamic kernel 10487126372Snjlmemory significantly. (about 10X) 10488102550Siwasaki 10489114237SnjlException codes broken into classes and renumbered. Be sure to 10490114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 10491114237Snjlhave to renumber the codes again now that they are split into 10492114237Snjlclasses (environment, programmer, AML code, ACPI table, and 10493114237Snjlinternal). 10494102550Siwasaki 10495104470SiwasakiFixed some additional alignment issues in the Resource Manager 10496104470Siwasakisubcomponent 10497102550Siwasaki 10498114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 10499114237Snjlseveral places where mutexes/semaphores were being unlocked 10500114237Snjlwithout a corresponding lock operation. There are no known 10501114237Snjlsemaphore or mutex "leaks" at this time. 10502102550Siwasaki 10503114237SnjlFixed the case where an ASL Return operator is used to return an 10504114237Snjlunnamed package. 10505102550Siwasaki 10506102550Siwasaki------------------------------------------- 10507102550SiwasakiSummary of changes for this label: 07_28_00 10508102550Siwasaki 10509102550SiwasakiFixed a problem with the way addresses were calculated in 10510114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 10511114237Snjlmanifested itself when a Field was created with WordAccess or 10512193267SjkimDwordAccess, but the field unit defined within the Field was less 10513167802Sjkim 10514126372Snjlthan a Word or Dword. 10515102550Siwasaki 10516102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 10517104470Siwasakioperands off of the operand stack to display information. The 10518114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 10519114237Snjlaccessing an operand stack with two or more operands. 10520102550Siwasaki 10521114237SnjlFixed a problem with the PCI configuration space handlers where 10522114237Snjlcontext was getting confused between accesses. This required a 10523114237Snjlchange to the generic address space handler and address space 10524193267Sjkimsetup definitions. Handlers now get both a global handler context 10525126372Snjl(this is the one passed in by the user when executing 10526114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 10527114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 10528114237Snjl_BBN values associated with a specific region). The generic 10529114237Snjlfunction definitions have changed to the following: 10530102550Siwasaki 10531114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 10532114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 10533104470Siwasaki*HandlerContext, // This used to be void *Context void 10534102550Siwasaki*RegionContext); // This is an additional parameter 10535102550Siwasaki 10536102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 10537102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 10538102550Siwasaki**RegionContext); // This used to be **ReturnContext 10539102550Siwasaki 10540102550Siwasaki------------------------------------------- 10541102550SiwasakiSummary of changes for this label: 07_21_00 10542102550Siwasaki 10543102550SiwasakiMajor file consolidation and rename. All files within the 10544193267Sjkiminterpreter have been renamed as well as most header files. This 10545126372Snjlwas done to prevent collisions with existing files in the host 10546126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 10547126372Snjlquite common. The VC project files have been updated. All 10548114237Snjlmakefiles will require modification. 10549102550Siwasaki 10550114237SnjlThe parser/interpreter integration continues in Phase 5 with the 10551114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 10552114237Snjltwice) for each table; This avoids the construction of a huge 10553114237Snjlparse tree and therefore reduces the amount of dynamic memory 10554114237Snjlrequired by the subsystem. Greater use of the parse object cache 10555114237Snjlmeans that performance is unaffected. 10556102550Siwasaki 10557102550SiwasakiMany comments from the two code reviews have been rolled in. 10558102550Siwasaki 10559102550SiwasakiThe 64-bit alignment support is complete. 10560102550Siwasaki 10561102550Siwasaki------------------------------------------- 10562102550SiwasakiSummary of changes for this label: 06_30_00 10563102550Siwasaki 10564114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 10565114237Snjlwe've added support in the source code for 80 column output 10566114237Snjldevices. The code is now mostly constrained to 80 columns or 10567114237Snjlless to support environments and editors that 1) cannot display 10568114237Snjlor print more than 80 characters on a single line, and 2) cannot 10569114237Snjldisable line wrapping. 10570102550Siwasaki 10571104470SiwasakiA major restructuring of the namespace data structure has been 10572104470Siwasakicompleted. The result is 1) cleaner and more 10573114237Snjlunderstandable/maintainable code, and 2) a significant reduction 10574114237Snjlin the dynamic memory requirement for each named ACPI object 10575114237Snjl(almost half). 10576102550Siwasaki 10577102550Siwasaki------------------------------------------- 10578102550SiwasakiSummary of changes for this label: 06_23_00 10579102550Siwasaki 10580114237SnjlLinux support has been added. In order to obtain approval to get 10581114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 10582114237Snjlquite a few changes to the base subsystem that will affect all 10583114237Snjlusers (all the changes are generic and OS- independent). The 10584114237Snjleffects of these global changes have been somewhat far reaching. 10585114237SnjlFiles have been merged and/or renamed and interfaces have been 10586114237Snjlrenamed. The major changes are described below. 10587102550Siwasaki 10588102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 10589102550Siwasakipollution/confusion within our target kernels. All OSD 10590114237Snjlinterfaces must be modified to match the new naming convention. 10591102550Siwasaki 10592193267SjkimFiles merged across the subsystem. A number of the smaller source 10593126372Snjland header files have been merged to reduce the file count and 10594126372Snjlincrease the density of the existing files. There are too many 10595126372Snjlto list here. In general, makefiles that call out individual 10596126372Snjlfiles will require rebuilding. 10597102550Siwasaki 10598104470SiwasakiInterpreter files renamed. All interpreter files now have the 10599104470Siwasakiprefix am* instead of ie* and is*. 10600102550Siwasaki 10601104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 10602114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 10603114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 10604114237Snjl"external interface" or xface or xf in the filenames.j 10605102550Siwasaki 10606102550Siwasaki 10607114237SnjlAll manifest constants have been forced to upper case (some were 10608193267Sjkimmixed case.) Also, the string "ACPI_" has been prepended to many 10609126372Snjl(not all) of the constants, typedefs, and structs. 10610102550Siwasaki 10611102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 10612102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 10613102550Siwasaki 10614102550SiwasakiAll other globals within the subsystem are now prefixed with 10615102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 10616114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 10617193267Sjkimtwo-letter abbreviation for the subcomponent remains after "Acpi" 10618126372Snjl- for example, CmCallocate became AcpiCmCallocate. 10619102550Siwasaki 10620102550SiwasakiAdded a source code translation/conversion utility. Used to 10621114237Snjlgenerate the Linux source code, it can be modified to generate 10622114237Snjlother types of source as well. Can also be used to cleanup 10623114237Snjlexisting source by removing extraneous spaces and blank lines. 10624114237SnjlFound in tools/acpisrc/* 10625102550Siwasaki 10626102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 10627102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 10628102550Siwasaki 10629114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 10630114237SnjlWhen set to one, this indicates that the caller wants to use the 10631167802Sjkim 10632114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 10633114237Snjlboth types. However, implementers of this call may want to use 10634114237Snjldifferent OS primitives depending on the type of semaphore 10635114237Snjlrequested. For example, some operating systems provide separate 10636167802Sjkim 10637193267Sjkim"mutex" and "semaphore" interfaces - where the mutex interface is 10638126372Snjlmuch faster because it doesn't have all the overhead of a full 10639126372Snjlsemaphore implementation. 10640102550Siwasaki 10641104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 10642114237Snjladdress space can block forever if it is the first access to the 10643114237Snjlspace. 10644102550Siwasaki 10645102550Siwasaki------------------------------------------- 10646102550SiwasakiSummary of changes for this label: 06_02_00 10647102550Siwasaki 10648102550SiwasakiSupport for environments that cannot handle unaligned data 10649114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 10650193267Sjkimhandler technology namely SAL/EFI and the IA-64 Linux kernel) has 10651126372Snjlbeen added (via configurable macros) in these three areas: - 10652114237SnjlTransfer of data from the raw AML byte stream is done via byte 10653193267Sjkimmoves instead of word/dword/qword moves. - External objects are 10654126372Snjlaligned within the user buffer, including package elements (sub- 10655193267Sjkimobjects). - Conversion of name strings to UINT32 Acpi Names is now 10656126372Snjldone byte-wise. 10657102550Siwasaki 10658102550SiwasakiThe Store operator was modified to mimic Microsoft's 10659102550Siwasakiimplementation when storing to a Buffer Field. 10660102550Siwasaki 10661102550SiwasakiAdded a check of the BM_STS bit before entering C3. 10662102550Siwasaki 10663114237SnjlThe methods subdirectory has been obsoleted and removed. A new 10664114237Snjlfile, cmeval.c subsumes the functionality. 10665102550Siwasaki 10666102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 10667102550Siwasakimakefile is under the acpiexec directory. 10668