changes.txt revision 229989
1117521Snjl---------------------------------------- 2229989Sjkim11 January 2012. Summary of changes for version 20120111: 3229989Sjkim 4229989SjkimThis release is available at www.acpica.org/downloads. 5229989SjkimThe ACPI 5.0 specification is available at www.acpi.info. 6229989Sjkim 7229989Sjkim1) ACPICA Core Subsystem: 8229989Sjkim 9229989SjkimImplemented a new mechanism to allow host device drivers to check for address 10229989Sjkimrange conflicts with ACPI Operation Regions. Both SystemMemory and SystemIO 11229989Sjkimaddress spaces are supported. A new external interface, AcpiCheckAddressRange, 12229989Sjkimallows drivers to check an address range against the ACPI namespace. See the 13229989SjkimACPICA reference for additional details. Adds one new file, 14229989Sjkimutilities/utaddress.c. Lin Ming, Bob Moore. 15229989Sjkim 16229989SjkimFixed several issues with the ACPI 5.0 FADT support: Add the sleep Control and 17229989SjkimStatus registers, update the ACPI 5.0 flags, and update internal data 18229989Sjkimstructures to handle an FADT larger than 256 bytes. The size of the ACPI 5.0 19229989SjkimFADT is 268 bytes. 20229989Sjkim 21229989SjkimUpdated all ACPICA copyrights and signons to 2012. Added the 2012 copyright to 22229989Sjkimall module headers and signons, including the standard Linux header. This 23229989Sjkimaffects virtually every file in the ACPICA core subsystem, iASL compiler, and 24229989Sjkimall ACPICA utilities. 25229989Sjkim 26229989SjkimExample Code and Data Size: These are the sizes for the OS-independent 27229989Sjkimacpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug 28229989Sjkimversion of the code includes the debug output trace mechanism and has a much 29229989Sjkimlarger code and data size. 30229989Sjkim 31229989Sjkim Previous Release: 32229989Sjkim Non-Debug Version: 92.3K Code, 24.9K Data, 117.2K Total 33229989Sjkim Debug Version: 170.8K Code, 72.6K Data, 243.4K Total 34229989Sjkim Current Release: 35229989Sjkim Non-Debug Version: 92.8K Code, 24.9K Data, 117.7K Total 36229989Sjkim Debug Version: 171.7K Code, 72.9K Data, 244.5K Total 37229989Sjkim 38229989Sjkim 39229989Sjkim2) iASL Compiler/Disassembler and Tools: 40229989Sjkim 41229989SjkimDisassembler: fixed a problem with the automatic resource tag generation 42229989Sjkimsupport. Fixes a problem where the resource tags are inadvertently not 43229989Sjkimconstructed if the table being disassembled contains external references to 44229989Sjkimcontrol methods. Moved the actual construction of the tags to after the final 45229989Sjkimnamespace is constructed (after 2nd parse is invoked due to external control 46229989Sjkimmethod references.) ACPICA BZ 941. 47229989Sjkim 48229989SjkimTable Compiler: Make all "generic" operators caseless. These are the operators 49229989Sjkimlike UINT8, String, etc. Making these caseless improves ease-of-use. ACPICA BZ 50229989Sjkim934. 51229989Sjkim 52229989Sjkim---------------------------------------- 53228110Sjkim23 November 2011. Summary of changes for version 20111123: 54222544Sjkim 55228110Sjkim0) ACPI 5.0 Support: 56228110Sjkim 57228110SjkimThis release contains full support for the ACPI 5.0 specification, as 58228110Sjkimsummarized below. 59228110Sjkim 60228110SjkimReduced Hardware Support: 61228110Sjkim------------------------- 62228110Sjkim 63228110SjkimThis support allows for ACPI systems without the usual ACPI hardware. This 64228110Sjkimsupport is enabled by a flag in the revision 5 FADT. If it is set, ACPICA will 65228110Sjkimnot attempt to initialize or use any of the usual ACPI hardware. Note, when 66228110Sjkimthis flag is set, all of the following ACPI hardware is assumed to be not 67228110Sjkimpresent and is not initialized or accessed: 68228110Sjkim 69228110Sjkim General Purpose Events (GPEs) 70228110Sjkim Fixed Events (PM1a/PM1b and PM Control) 71228110Sjkim Power Management Timer and Console Buttons (power/sleep) 72228110Sjkim Real-time Clock Alarm 73228110Sjkim Global Lock 74228110Sjkim System Control Interrupt (SCI) 75228110Sjkim The FACS is assumed to be non-existent 76228110Sjkim 77228110SjkimACPI Tables: 78228110Sjkim------------ 79228110Sjkim 80228110SjkimAll new tables and updates to existing tables are fully supported in the 81228110SjkimACPICA headers (for use by device drivers), the disassembler, and the iASL 82228110SjkimData Table Compiler. ACPI 5.0 defines these new tables: 83228110Sjkim 84228110Sjkim BGRT /* Boot Graphics Resource Table */ 85228110Sjkim DRTM /* Dynamic Root of Trust for Measurement table */ 86228110Sjkim FPDT /* Firmware Performance Data Table */ 87228110Sjkim GTDT /* Generic Timer Description Table */ 88228110Sjkim MPST /* Memory Power State Table */ 89228110Sjkim PCCT /* Platform Communications Channel Table */ 90228110Sjkim PMTT /* Platform Memory Topology Table */ 91228110Sjkim RASF /* RAS Feature table */ 92228110Sjkim 93228110SjkimOperation Regions/SpaceIDs: 94228110Sjkim--------------------------- 95228110Sjkim 96228110SjkimAll new operation regions are fully supported by the iASL compiler, the 97228110Sjkimdisassembler, and the ACPICA runtime code (for dispatch to region handlers.) 98228110SjkimThe new operation region Space IDs are: 99228110Sjkim 100228110Sjkim GeneralPurposeIo 101228110Sjkim GenericSerialBus 102228110Sjkim 103228110SjkimResource Descriptors: 104228110Sjkim--------------------- 105228110Sjkim 106228110SjkimAll new ASL resource descriptors are fully supported by the iASL compiler, the 107228110SjkimASL/AML disassembler, and the ACPICA runtime Resource Manager code (including 108228110Sjkimall new predefined resource tags). New descriptors are: 109228110Sjkim 110228110Sjkim FixedDma 111228110Sjkim GpioIo 112228110Sjkim GpioInt 113228110Sjkim I2cSerialBus 114228110Sjkim SpiSerialBus 115228110Sjkim UartSerialBus 116228110Sjkim 117228110SjkimASL/AML Operators, New and Modified: 118228110Sjkim------------------------------------ 119228110Sjkim 120228110SjkimOne new operator is added, the Connection operator, which is used to associate 121228110Sjkima GeneralPurposeIo or GenericSerialBus resource descriptor with individual 122228110Sjkimfield objects within an operation region. Several new protocols are associated 123228110Sjkimwith the AccessAs operator. All are fully supported by the iASL compiler, 124228110Sjkimdisassembler, and runtime ACPICA AML interpreter: 125228110Sjkim 126228110Sjkim Connection // Declare Field Connection attributes 127228110Sjkim AccessAs: AttribBytes (n) // Read/Write N-Bytes Protocol 128228110Sjkim AccessAs: AttribRawBytes (n) // Raw Read/Write N-Bytes Protocol 129228110Sjkim AccessAs: AttribRawProcessBytes (n) // Raw Process Call Protocol 130228110Sjkim RawDataBuffer // Data type for Vendor Data fields 131228110Sjkim 132228110SjkimPredefined ASL/AML Objects: 133228110Sjkim--------------------------- 134228110Sjkim 135228110SjkimAll new predefined objects/control-methods are supported by the iASL compiler 136228110Sjkimand the ACPICA runtime validation/repair (arguments and return values.) New 137228110Sjkimpredefined names include the following: 138228110Sjkim 139228110SjkimStandard Predefined Names (Objects or Control Methods): 140228110Sjkim _AEI, _CLS, _CPC, _CWS, _DEP, 141228110Sjkim _DLM, _EVT, _GCP, _CRT, _GWS, 142228110Sjkim _HRV, _PRE, _PSE, _SRT, _SUB. 143228110Sjkim 144228110SjkimResource Tags (Names used to access individual fields within resource 145228110Sjkimdescriptors): 146228110Sjkim _DBT, _DPL, _DRS, _END, _FLC, 147228110Sjkim _IOR, _LIN, _MOD, _PAR, _PHA, 148228110Sjkim _PIN, _PPI, _POL, _RXL, _SLV, 149228110Sjkim _SPE, _STB, _TXL, _VEN. 150228110Sjkim 151228110SjkimACPICA External Interfaces: 152228110Sjkim--------------------------- 153228110Sjkim 154228110SjkimSeveral new interfaces have been defined for use by ACPI-related device 155228110Sjkimdrivers and other host OS services: 156228110Sjkim 157228110SjkimAcpiAcquireMutex and AcpiReleaseMutex: These interfaces allow the host OS to 158228110Sjkimacquire and release AML mutexes that are defined in the DSDT/SSDT tables 159228110Sjkimprovided by the BIOS. They are intended to be used in conjunction with the 160228110SjkimACPI 5.0 _DLM (Device Lock Method) in order to provide transaction-level 161228110Sjkimmutual exclusion with the AML code/interpreter. 162228110Sjkim 163228110SjkimAcpiGetEventResources: Returns the (formatted) resource descriptors as defined 164228110Sjkimby the ACPI 5.0 _AEI object (ACPI Event Information). This object provides 165228110Sjkimresource descriptors associated with hardware-reduced platform events, similar 166228110Sjkimto the AcpiGetCurrentResources interface. 167228110Sjkim 168228110SjkimOperation Region Handlers: For General Purpose IO and Generic Serial Bus 169228110Sjkimoperation regions, information about the Connection() object and any optional 170228110Sjkimlength information is passed to the region handler within the Context 171228110Sjkimparameter. 172228110Sjkim 173228110SjkimAcpiBufferToResource: This interface converts a raw AML buffer containing a 174228110Sjkimresource template or resource descriptor to the ACPI_RESOURCE internal format 175228110Sjkimsuitable for use by device drivers. Can be used by an operation region handler 176228110Sjkimto convert the Connection() buffer object into a ACPI_RESOURCE. 177228110Sjkim 178228110SjkimMiscellaneous/Tools/TestSuites: 179228110Sjkim------------------------------- 180228110Sjkim 181228110SjkimSupport for extended _HID names (Four alpha characters instead of three). 182228110SjkimSupport for ACPI 5.0 features in the AcpiExec and AcpiHelp utilities. 183228110SjkimSupport for ACPI 5.0 features in the ASLTS test suite. 184228110SjkimFully updated documentation (ACPICA and iASL reference documents.) 185228110Sjkim 186228110SjkimACPI Table Definition Language: 187228110Sjkim------------------------------- 188228110Sjkim 189228110SjkimSupport for this language was implemented and released as a subsystem of the 190228110SjkimiASL compiler in 2010. (See the iASL compiler User Guide.) 191228110Sjkim 192228110Sjkim 193228110SjkimNon-ACPI 5.0 changes for this release: 194228110Sjkim-------------------------------------- 195228110Sjkim 196228110Sjkim1) ACPICA Core Subsystem: 197228110Sjkim 198228110SjkimFix a problem with operation region declarations where a failure can occur if 199228110Sjkimthe region name and an argument that evaluates to an object (such as the 200228110Sjkimregion address) are in different namespace scopes. Lin Ming, ACPICA BZ 937. 201228110Sjkim 202228110SjkimDo not abort an ACPI table load if an invalid space ID is found within. This 203228110Sjkimwill be caught later if the offending method is executed. ACPICA BZ 925. 204228110Sjkim 205228110SjkimFixed an issue with the FFixedHW space ID where the ID was not always 206228110Sjkimrecognized properly (Both ACPICA and iASL). ACPICA BZ 926. 207228110Sjkim 208228110SjkimFixed a problem with the 32-bit generation of the unix-specific OSL 209228110Sjkim(osunixxf.c). Lin Ming, ACPICA BZ 936. 210228110Sjkim 211228110SjkimSeveral changes made to enable generation with the GCC 4.6 compiler. ACPICA BZ 212228110Sjkim935. 213228110Sjkim 214228110SjkimNew error messages: Unsupported I/O requests (not 8/16/32 bit), and Index/Bank 215228110Sjkimfield registers out-of-range. 216228110Sjkim 217228110Sjkim2) iASL Compiler/Disassembler and Tools: 218228110Sjkim 219228110SjkimiASL: Implemented the __PATH__ operator, which returns the full pathname of 220228110Sjkimthe current source file. 221228110Sjkim 222228110SjkimAcpiHelp: Automatically display expanded keyword information for all ASL 223228110Sjkimoperators. 224228110Sjkim 225228110SjkimDebugger: Add "Template" command to disassemble/dump resource template 226228110Sjkimbuffers. 227228110Sjkim 228228110SjkimAdded a new master script to generate and execute the ASLTS test suite. 229228110SjkimAutomatically handles 32- and 64-bit generation. See tests/aslts.sh 230228110Sjkim 231228110SjkimiASL: Fix problem with listing generation during processing of the Switch() 232228110Sjkimoperator where AML listing was disabled until the entire Switch block was 233228110Sjkimcompleted. 234228110Sjkim 235228110SjkimiASL: Improve support for semicolon statement terminators. Fix "invalid 236228110Sjkimcharacter" message for some cases when the semicolon is used. Semicolons are 237228110Sjkimnow allowed after every <Term> grammar element. ACPICA BZ 927. 238228110Sjkim 239228110SjkimiASL: Fixed some possible aliasing warnings during generation. ACPICA BZ 923. 240228110Sjkim 241228110SjkimDisassembler: Fix problem with disassembly of the DataTableRegion operator 242228110Sjkimwhere an inadvertent "Unhandled deferred opcode" message could be generated. 243228110Sjkim 244228110Sjkim3) Example Code and Data Size 245228110Sjkim 246228110SjkimThese are the sizes for the OS-independent acpica.lib produced by the 247228110SjkimMicrosoft Visual C++ 9.0 32-bit compiler. The debug version of the code 248228110Sjkimincludes the debug output trace mechanism and has a much larger code and data 249228110Sjkimsize. 250228110Sjkim 251228110Sjkim Previous Release: 252228110Sjkim Non-Debug Version: 90.2K Code, 23.9K Data, 114.1K Total 253228110Sjkim Debug Version: 165.6K Code, 68.4K Data, 234.0K Total 254228110Sjkim Current Release: 255228110Sjkim Non-Debug Version: 92.3K Code, 24.9K Data, 117.2K Total 256228110Sjkim Debug Version: 170.8K Code, 72.6K Data, 243.4K Total 257228110Sjkim 258228110Sjkim---------------------------------------- 259228110Sjkim22 September 2011. Summary of changes for version 20110922: 260228110Sjkim 261228110Sjkim0) ACPI 5.0 News: 262228110Sjkim 263228110SjkimSupport for ACPI 5.0 in ACPICA has been underway for several months and will 264228110Sjkimbe released at the same time that ACPI 5.0 is officially released. 265228110Sjkim 266228110SjkimThe ACPI 5.0 specification is on track for release in the next few months. 267228110Sjkim 268228110Sjkim1) ACPICA Core Subsystem: 269228110Sjkim 270228110SjkimFixed a problem where the maximum sleep time for the Sleep() operator was 271228110Sjkimintended to be limited to two seconds, but was inadvertently limited to 20 272228110Sjkimseconds instead. 273228110Sjkim 274228110SjkimLinux and Unix makefiles: Added header file dependencies to ensure correct 275228110Sjkimgeneration of ACPICA core code and utilities. Also simplified the makefiles 276228110Sjkimconsiderably through the use of the vpath variable to specify search paths. 277228110SjkimACPICA BZ 924. 278228110Sjkim 279228110Sjkim2) iASL Compiler/Disassembler and Tools: 280228110Sjkim 281228110SjkimiASL: Implemented support to check the access length for all fields created to 282228110Sjkimaccess named Resource Descriptor fields. For example, if a resource field is 283228110Sjkimdefined to be two bits, a warning is issued if a CreateXxxxField() is used 284228110Sjkimwith an incorrect bit length. This is implemented for all current resource 285228110Sjkimdescriptor names. ACPICA BZ 930. 286228110Sjkim 287228110SjkimDisassembler: Fixed a byte ordering problem with the output of 24-bit and 56- 288228110Sjkimbit integers. 289228110Sjkim 290228110SjkimiASL: Fixed a couple of issues associated with variable-length package 291228110Sjkimobjects. 1) properly handle constants like One, Ones, Zero -- do not make a 292228110SjkimVAR_PACKAGE when these are used as a package length. 2) Allow the VAR_PACKAGE 293228110Sjkimopcode (in addition to PACKAGE) when validating object types for predefined 294228110Sjkimnames. 295228110Sjkim 296228110SjkimiASL: Emit statistics for all output files (instead of just the ASL input and 297228110SjkimAML output). Includes listings, hex files, etc. 298228110Sjkim 299228110SjkimiASL: Added -G option to the table compiler to allow the compilation of custom 300228110SjkimACPI tables. The only part of a table that is required is the standard 36-byte 301228110SjkimACPI header. 302228110Sjkim 303228110SjkimAcpiXtract: Ported to the standard ACPICA environment (with ACPICA headers), 304228110Sjkimwhich also adds correct 64-bit support. Also, now all output filenames are 305228110Sjkimcompletely lower case. 306228110Sjkim 307228110SjkimAcpiExec: Ignore any non-AML tables (tables other than DSDT or SSDT) when 308228110Sjkimloading table files. A warning is issued for any such tables. The only 309228110Sjkimexception is an FADT. This also fixes a possible fault when attempting to load 310228110Sjkimnon-AML tables. ACPICA BZ 932. 311228110Sjkim 312228110SjkimAcpiHelp: Added the AccessAs and Offset operators. Fixed a problem where a 313228110Sjkimmissing table terminator could cause a fault when using the -p option. 314228110Sjkim 315228110SjkimAcpiSrc: Fixed a possible divide-by-zero fault when generating file 316228110Sjkimstatistics. 317228110Sjkim 318228110Sjkim3) Example Code and Data Size 319228110Sjkim 320228110SjkimThese are the sizes for the OS-independent acpica.lib produced by the 321228110SjkimMicrosoft Visual C++ 9.0 32-bit compiler. The debug version of the code 322228110Sjkimincludes the debug output trace mechanism and has a much larger code and data 323228110Sjkimsize. 324228110Sjkim 325228110Sjkim Previous Release (VC 9.0): 326228110Sjkim Non-Debug Version: 90.2K Code, 23.9K Data, 114.1K Total 327228110Sjkim Debug Version: 165.6K Code, 68.4K Data, 234.0K Total 328228110Sjkim Current Release (VC 9.0): 329228110Sjkim Non-Debug Version: 90.2K Code, 23.9K Data, 114.1K Total 330228110Sjkim Debug Version: 165.6K Code, 68.4K Data, 234.0K Total 331228110Sjkim 332228110Sjkim 333228110Sjkim---------------------------------------- 334228110Sjkim23 June 2011. Summary of changes for version 20110623: 335228110Sjkim 336222544Sjkim1) ACPI CA Core Subsystem: 337222544Sjkim 338228110SjkimUpdated the predefined name repair mechanism to not attempt repair of a _TSS 339228110Sjkimreturn object if a _PSS object is present. We can only sort the _TSS return 340228110Sjkimpackage if there is no _PSS within the same scope. This is because if _PSS is 341228110Sjkimpresent, the ACPI specification dictates that the _TSS Power Dissipation field 342228110Sjkimis to be ignored, and therefore some BIOSs leave garbage values in the _TSS 343228110SjkimPower field(s). In this case, it is best to just return the _TSS package as- 344228110Sjkimis. Reported by, and fixed with assistance from Fenghua Yu. 345228110Sjkim 346228110SjkimAdded an option to globally disable the control method return value validation 347228110Sjkimand repair. This runtime option can be used to disable return value repair if 348228110Sjkimthis is causing a problem on a particular machine. Also added an option to 349228110SjkimAcpiExec (-dr) to set this disable flag. 350228110Sjkim 351228110SjkimAll makefiles and project files: Major changes to improve generation of ACPICA 352228110Sjkimtools. ACPICA BZ 912: 353228110Sjkim Reduce default optimization levels to improve compatibility 354228110Sjkim For Linux, add strict-aliasing=0 for gcc 4 355228110Sjkim Cleanup and simplify use of command line defines 356228110Sjkim Cleanup multithread library support 357228110Sjkim Improve usage messages 358228110Sjkim 359228110SjkimLinux-specific header: update handling of THREAD_ID and pthread. For the 32- 360228110Sjkimbit case, improve casting to eliminate possible warnings, especially with the 361228110Sjkimacpica tools. 362228110Sjkim 363228110SjkimExample Code and Data Size: These are the sizes for the OS-independent 364228110Sjkimacpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug 365228110Sjkimversion of the code includes the debug output trace mechanism and has a much 366228110Sjkimlarger code and data size. 367228110Sjkim 368228110Sjkim Previous Release (VC 9.0): 369228110Sjkim Non-Debug Version: 90.1K Code, 23.9K Data, 114.0K Total 370228110Sjkim Debug Version: 165.6K Code, 68.4K Data, 234.0K Total 371228110Sjkim Current Release (VC 9.0): 372228110Sjkim Non-Debug Version: 90.2K Code, 23.9K Data, 114.1K Total 373228110Sjkim Debug Version: 165.6K Code, 68.4K Data, 234.0K Total 374228110Sjkim 375228110Sjkim2) iASL Compiler/Disassembler and Tools: 376228110Sjkim 377228110SjkimWith this release, a new utility named "acpihelp" has been added to the ACPICA 378228110Sjkimpackage. This utility summarizes the ACPI specification chapters for the ASL 379228110Sjkimand AML languages. It generates under Linux/Unix as well as Windows, and 380228110Sjkimprovides the following functionality: 381228110Sjkim Find/display ASL operator(s) -- with description and syntax. 382228110Sjkim Find/display ASL keyword(s) -- with exact spelling and descriptions. 383228110Sjkim Find/display ACPI predefined name(s) -- with description, number 384228110Sjkim of arguments, and the return value data type. 385228110Sjkim Find/display AML opcode name(s) -- with opcode, arguments, and grammar. 386228110Sjkim Decode/display AML opcode -- with opcode name, arguments, and grammar. 387228110Sjkim 388228110SjkimService Layers: Make multi-thread support configurable. Conditionally compile 389228110Sjkimthe multi-thread support so that threading libraries will not be linked if not 390228110Sjkimnecessary. The only tool that requires multi-thread support is AcpiExec. 391228110Sjkim 392228110SjkimiASL: Update yyerrror/AslCompilerError for "const" errors. Newer versions of 393228110SjkimBison appear to want the interface to yyerror to be a const char * (or at 394228110Sjkimleast this is a problem when generating iASL on some systems.) ACPICA BZ 923 395228110SjkimPierre Lejeune. 396228110Sjkim 397228110SjkimTools: Fix for systems where O_BINARY is not defined. Only used for Windows 398228110Sjkimversions of the tools. 399228110Sjkim 400228110Sjkim---------------------------------------- 401228110Sjkim27 May 2011. Summary of changes for version 20110527: 402228110Sjkim 403228110Sjkim1) ACPI CA Core Subsystem: 404228110Sjkim 405222544SjkimASL Load() operator: Reinstate most restrictions on the incoming ACPI table 406222544Sjkimsignature. Now, only allow SSDT, OEMx, and a null signature. History: 407222544Sjkim 1) Originally, we checked the table signature for "SSDT" or "PSDT". 408222544Sjkim (PSDT is now obsolete.) 409222544Sjkim 2) We added support for OEMx tables, signature "OEM" plus a fourth 410222544Sjkim "don't care" character. 411222544Sjkim 3) Valid tables were encountered with a null signature, so we just 412222544Sjkim gave up on validating the signature, (05/2008). 413222544Sjkim 4) We encountered non-AML tables such as the MADT, which caused 414222544Sjkim interpreter errors and kernel faults. So now, we once again allow 415222544Sjkim only SSDT, OEMx, and now, also a null signature. (05/2011). 416222544Sjkim 417222544SjkimAdded the missing _TDL predefined name to the global name list in order to 418222544Sjkimenable validation. Affects both the core ACPICA code and the iASL compiler. 419222544Sjkim 420222544SjkimExample Code and Data Size: These are the sizes for the OS-independent 421222544Sjkimacpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug 422222544Sjkimversion of the code includes the debug output trace mechanism and has a much 423222544Sjkimlarger code and data size. 424222544Sjkim 425222544Sjkim Previous Release (VC 9.0): 426222544Sjkim Non-Debug Version: 90.0K Code, 23.8K Data, 113.8K Total 427222544Sjkim Debug Version: 164.5K Code, 68.0K Data, 232.5K Total 428222544Sjkim Current Release (VC 9.0): 429222544Sjkim Non-Debug Version: 90.1K Code, 23.9K Data, 114.0K Total 430222544Sjkim Debug Version: 165.6K Code, 68.4K Data, 234.0K Total 431222544Sjkim 432222544Sjkim2) iASL Compiler/Disassembler and Tools: 433222544Sjkim 434222544SjkimDebugger/AcpiExec: Implemented support for "complex" method arguments on the 435222544Sjkimdebugger command line. This adds support beyond simple integers -- including 436222544SjkimStrings, Buffers, and Packages. Includes support for nested packages. 437222544SjkimIncreased the default command line buffer size to accommodate these arguments. 438222544SjkimSee the ACPICA reference for details and syntax. ACPICA BZ 917. 439222544Sjkim 440222544SjkimDebugger/AcpiExec: Implemented support for "default" method arguments for the 441222544SjkimExecute/Debug command. Now, the debugger will always invoke a control method 442222544Sjkimwith the required number of arguments -- even if the command line specifies 443222544Sjkimnone or insufficient arguments. It uses default integer values for any missing 444222544Sjkimarguments. Also fixes a bug where only six method arguments maximum were 445222544Sjkimsupported instead of the required seven. 446222544Sjkim 447222544SjkimDebugger/AcpiExec: Add a maximum buffer length parameter to AcpiOsGetLine and 448222544Sjkimalso return status in order to prevent buffer overruns. See the ACPICA 449222544Sjkimreference for details and syntax. ACPICA BZ 921 450222544Sjkim 451222544SjkimiASL: Cleaned up support for Berkeley yacc. A general cleanup of code and 452222544Sjkimmakefiles to simplify support for the two different but similar parser 453222544Sjkimgenerators, bison and yacc. 454222544Sjkim 455222544SjkimUpdated the generic unix makefile for gcc 4. The default gcc version is now 456222544Sjkimexpected to be 4 or greater, since options specific to gcc 4 are used. 457222544Sjkim 458222544Sjkim---------------------------------------- 459220663Sjkim13 April 2011. Summary of changes for version 20110413: 460220663Sjkim 461220663Sjkim1) ACPI CA Core Subsystem: 462220663Sjkim 463220663SjkimImplemented support to execute a so-called "orphan" _REG method under the EC 464222544Sjkimdevice. This change will force the execution of a _REG method underneath the 465222544SjkimEC 466220663Sjkimdevice even if there is no corresponding operation region of type 467220663SjkimEmbeddedControl. Fixes a problem seen on some machines and apparently is 468220663Sjkimcompatible with Windows behavior. ACPICA BZ 875. 469220663Sjkim 470220663SjkimAdded more predefined methods that are eligible for automatic NULL package 471222544Sjkimelement removal. This change adds another group of predefined names to the 472222544Sjkimlist 473220663Sjkimof names that can be repaired by having NULL package elements dynamically 474220663Sjkimremoved. This group are those methods that return a single variable-length 475220663Sjkimpackage containing simple data types such as integers, buffers, strings. This 476222544Sjkimincludes: _ALx, _BCL, _CID,_ DOD, _EDL, _FIX, _PCL, _PLD, _PMD, _PRx, _PSL, 477222544Sjkim_Sx, 478220663Sjkimand _TZD. ACPICA BZ 914. 479220663Sjkim 480222544SjkimSplit and segregated all internal global lock functions to a new file, 481222544Sjkimevglock.c. 482220663Sjkim 483222544SjkimUpdated internal address SpaceID for DataTable regions. Moved this internal 484222544Sjkimspace 485222544Sjkimid in preparation for ACPI 5.0 changes that will include some new space IDs. 486222544SjkimThis 487220663Sjkimchange should not affect user/host code. 488220663Sjkim 489222544SjkimExample Code and Data Size: These are the sizes for the OS-independent 490222544Sjkimacpica.lib 491220663Sjkimproduced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug version of 492222544Sjkimthe code includes the debug output trace mechanism and has a much larger code 493222544Sjkimand 494220663Sjkimdata size. 495220663Sjkim 496220663Sjkim Previous Release (VC 9.0): 497220663Sjkim Non-Debug Version: 89.8K Code, 23.8K Data, 113.6K Total 498220663Sjkim Debug Version: 164.2K Code, 67.9K Data, 232.1K Total 499220663Sjkim Current Release (VC 9.0): 500220663Sjkim Non-Debug Version: 90.0K Code, 23.8K Data, 113.8K Total 501220663Sjkim Debug Version: 164.5K Code, 68.0K Data, 232.5K Total 502220663Sjkim 503220663Sjkim2) iASL Compiler/Disassembler and Tools: 504220663Sjkim 505220663SjkimiASL/DTC: Major update for new grammar features. Allow generic data types in 506220663Sjkimcustom ACPI tables. Field names are now optional. Any line can be split to 507220663Sjkimmultiple lines using the continuation char (\). Large buffers now use line- 508222544Sjkimcontinuation character(s) and no colon on the continuation lines. See the 509222544Sjkimgrammar 510220663Sjkimupdate in the iASL compiler reference. ACPI BZ 910,911. Lin Ming, Bob Moore. 511220663Sjkim 512220663SjkimiASL: Mark ASL "Return()" and the simple "Return" as "Null" return statements. 513222544SjkimSince the parser stuffs a "zero" as the return value for these statements (due 514222544Sjkimto 515220663Sjkimthe underlying AML grammar), they were seen as "return with value" by the iASL 516220663Sjkimsemantic checking. They are now seen correctly as "null" return statements. 517220663Sjkim 518220663SjkimiASL: Check if a_REG declaration has a corresponding Operation Region. Adds a 519220663Sjkimcheck for each _REG to ensure that there is in fact a corresponding operation 520222544Sjkimregion declaration in the same scope. If not, the _REG method is not very 521222544Sjkimuseful 522220663Sjkimsince it probably won't be executed. ACPICA BZ 915. 523220663Sjkim 524222544SjkimiASL/DTC: Finish support for expression evaluation. Added a new expression 525222544Sjkimparser 526222544Sjkimthat implements c-style operator precedence and parenthesization. ACPICA 527222544Sjkimbugzilla 528220663Sjkim908. 529220663Sjkim 530222544SjkimDisassembler/DTC: Remove support for () and <> style comments in data tables. 531222544SjkimNow 532222544Sjkimthat DTC has full expression support, we don't want to have comment strings 533222544Sjkimthat 534222544Sjkimstart with a parentheses or a less-than symbol. Now, only the standard /* and 535222544Sjkim// 536220663Sjkimcomments are supported, as well as the bracket [] comments. 537220663Sjkim 538222544SjkimAcpiXtract: Fix for RSDP and dynamic SSDT extraction. These tables have 539222544Sjkim"unusual" 540220663Sjkimheaders in the acpidump file. Update the header validation to support these 541220663Sjkimtables. Problem introduced in previous AcpiXtract version in the change to 542220663Sjkimsupport "wrong checksum" error messages emitted by acpidump utility. 543220663Sjkim 544222544SjkimiASL: Add a * option to generate all template files (as a synonym for ALL) as 545222544Sjkimin 546220663Sjkim"iasl -T *" or "iasl -T ALL". 547220663Sjkim 548220663SjkimiASL/DTC: Do not abort compiler on fatal errors. We do not want to completely 549220663Sjkimabort the compiler on "fatal" errors, simply should abort the current compile. 550220663SjkimThis allows multiple compiles with a single (possibly wildcard) compiler 551220663Sjkiminvocation. 552220663Sjkim 553220663Sjkim---------------------------------------- 554219707Sjkim16 March 2011. Summary of changes for version 20110316: 555219707Sjkim 556219707Sjkim1) ACPI CA Core Subsystem: 557219707Sjkim 558219707SjkimFixed a problem caused by a _PRW method appearing at the namespace root scope 559222544Sjkimduring the setup of wake GPEs. A fault could occur if a _PRW directly under 560222544Sjkimthe 561219707Sjkimroot object was passed to the AcpiSetupGpeForWake interface. Lin Ming. 562219707Sjkim 563219707SjkimImplemented support for "spurious" Global Lock interrupts. On some systems, a 564219707Sjkimglobal lock interrupt can occur without the pending flag being set. Upon a GL 565219707Sjkiminterrupt, we now ensure that a thread is actually waiting for the lock before 566219707Sjkimsignaling GL availability. Rafael Wysocki, Bob Moore. 567219707Sjkim 568222544SjkimExample Code and Data Size: These are the sizes for the OS-independent 569222544Sjkimacpica.lib 570219707Sjkimproduced by the Microsoft Visual C++ 9.0 32-bit compiler. The debug version of 571222544Sjkimthe code includes the debug output trace mechanism and has a much larger code 572222544Sjkimand 573219707Sjkimdata size. 574219707Sjkim 575219707Sjkim Previous Release (VC 9.0): 576219707Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 577219707Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 578219707Sjkim Current Release (VC 9.0): 579219707Sjkim Non-Debug Version: 89.8K Code, 23.8K Data, 113.6K Total 580219707Sjkim Debug Version: 164.2K Code, 67.9K Data, 232.1K Total 581219707Sjkim 582219707Sjkim2) iASL Compiler/Disassembler and Tools: 583219707Sjkim 584219707SjkimImplemented full support for the "SLIC" ACPI table. Includes support in the 585219707Sjkimheader files, disassembler, table compiler, and template generator. Bob Moore, 586219707SjkimLin Ming. 587219707Sjkim 588219707SjkimAcpiXtract: Correctly handle embedded comments and messages from AcpiDump. 589222544SjkimApparently some or all versions of acpidump will occasionally emit a comment 590222544Sjkimlike 591219707Sjkim"Wrong checksum", etc., into the dump file. This was causing problems for 592219707SjkimAcpiXtract. ACPICA BZ 905. 593219707Sjkim 594219707SjkimiASL: Fix the Linux makefile by removing an inadvertent double file inclusion. 595219707SjkimACPICA BZ 913. 596219707Sjkim 597222544SjkimAcpiExec: Update installation of operation region handlers. Install one 598222544Sjkimhandler 599219707Sjkimfor a user-defined address space. This is used by the ASL test suite (ASLTS). 600219707Sjkim 601219707Sjkim---------------------------------------- 602218590Sjkim11 February 2011. Summary of changes for version 20110211: 603218590Sjkim 604218590Sjkim1) ACPI CA Core Subsystem: 605218590Sjkim 606218590SjkimAdded a mechanism to defer _REG methods for some early-installed handlers. 607218590SjkimMost user handlers should be installed before call to AcpiEnableSubsystem. 608218590SjkimHowever, Event handlers and region handlers should be installed after 609218590SjkimAcpiInitializeObjects. Override handlers for the "default" regions should be 610218590Sjkiminstalled early, however. This change executes all _REG methods for the 611218590Sjkimdefault regions (Memory/IO/PCI/DataTable) simultaneously to prevent any 612218590Sjkimchicken/egg issues between them. ACPICA BZ 848. 613218590Sjkim 614218590SjkimImplemented an optimization for GPE detection. This optimization will simply 615218590Sjkimignore GPE registers that contain no enabled GPEs -- there is no need to 616218590Sjkimread the register since this information is available internally. This 617218590Sjkimbecomes more important on machines with a large GPE space. ACPICA bugzilla 618218590Sjkim884. Lin Ming. Suggestion from Joe Liu. 619218590Sjkim 620218590SjkimRemoved all use of the highly unreliable FADT revision field. The revision 621218590Sjkimnumber in the FADT has been found to be completely unreliable and cannot be 622218590Sjkimtrusted. Only the actual table length can be used to infer the version. This 623218590Sjkimchange updates the ACPICA core and the disassembler so that both no longer 624218590Sjkimeven look at the FADT version and instead depend solely upon the FADT 625218590Sjkimlength. 626218590Sjkim 627218590SjkimFix an unresolved name issue for the no-debug and no-error-message source 628218590Sjkimgeneration cases. The _AcpiModuleName was left undefined in these cases, but 629218590Sjkimit is actually needed as a parameter to some interfaces. Define 630218590Sjkim_AcpiModuleName as a null string in these cases. ACPICA Bugzilla 888. 631218590Sjkim 632218590SjkimSplit several large files (makefiles and project files updated) 633218590Sjkim utglobal.c -> utdecode.c 634218590Sjkim dbcomds.c -> dbmethod.c dbnames.c 635218590Sjkim dsopcode.c -> dsargs.c dscontrol.c 636218590Sjkim dsload.c -> dsload2.c 637218590Sjkim aslanalyze.c -> aslbtypes.c aslwalks.c 638218590Sjkim 639218590SjkimExample Code and Data Size: These are the sizes for the OS-independent 640218590Sjkimacpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The 641218590Sjkimdebug version of the code includes the debug output trace mechanism and has 642218590Sjkima much larger code and data size. 643218590Sjkim 644218590Sjkim Previous Release (VC 9.0): 645218590Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 646218590Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 647218590Sjkim Current Release (VC 9.0): 648218590Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 649218590Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 650218590Sjkim 651218590Sjkim2) iASL Compiler/Disassembler and Tools: 652218590Sjkim 653218590SjkimiASL: Implemented the predefined macros __LINE__, __FILE__, and __DATE__. 654218590SjkimThese are useful C-style macros with the standard definitions. ACPICA 655218590Sjkimbugzilla 898. 656218590Sjkim 657218590SjkimiASL/DTC: Added support for integer expressions and labels. Support for full 658218590Sjkimexpressions for all integer fields in all ACPI tables. Support for labels in 659218590Sjkim"generic" portions of tables such as UEFI. See the iASL reference manual. 660218590Sjkim 661218590SjkimDebugger: Added a command to display the status of global handlers. The 662218590Sjkim"handlers" command will display op region, fixed event, and miscellaneous 663218590Sjkimglobal handlers. installation status -- and for op regions, whether default 664218590Sjkimor user-installed handler will be used. 665218590Sjkim 666218590SjkimiASL: Warn if reserved method incorrectly returns a value. Many predefined 667218590Sjkimnames are defined such that they do not return a value. If implemented as a 668218590Sjkimmethod, issue a warning if such a name explicitly returns a value. ACPICA 669218590SjkimBugzilla 855. 670218590Sjkim 671218590SjkimiASL: Added detection of GPE method name conflicts. Detects a conflict where 672218590Sjkimthere are two GPE methods of the form _Lxy and _Exy in the same scope. (For 673218590Sjkimexample, _L1D and _E1D in the same scope.) ACPICA bugzilla 848. 674218590Sjkim 675218590SjkimiASL/DTC: Fixed a couple input scanner issues with comments and line 676218590Sjkimnumbers. Comment remover could get confused and miss a comment ending. Fixed 677218590Sjkima problem with line counter maintenance. 678218590Sjkim 679218590SjkimiASL/DTC: Reduced the severity of some errors from fatal to error. There is 680218590Sjkimno need to abort on simple errors within a field definition. 681218590Sjkim 682218590SjkimDebugger: Simplified the output of the help command. All help output now in 683218590Sjkima single screen, instead of help subcommands. ACPICA Bugzilla 897. 684218590Sjkim 685218590Sjkim---------------------------------------- 686217365Sjkim12 January 2011. Summary of changes for version 20110112: 687217365Sjkim 688217365Sjkim1) ACPI CA Core Subsystem: 689217365Sjkim 690217365SjkimFixed a race condition between method execution and namespace walks that can 691217365Sjkimpossibly cause a fault. The problem was apparently introduced in version 692220663Sjkim20100528 as a result of a performance optimization that reduces the number of 693217365Sjkimnamespace walks upon method exit by using the delete_namespace_subtree 694217365Sjkimfunction instead of the delete_namespace_by_owner function used previously. 695217365SjkimBug is a missing namespace lock in the delete_namespace_subtree function. 696217365Sjkimdana.myers@oracle.com 697217365Sjkim 698217365SjkimFixed several issues and a possible fault with the automatic "serialized" 699220663Sjkimmethod support. History: This support changes a method to "serialized" on the 700217365Sjkimfly if the method generates an AE_ALREADY_EXISTS error, indicating the 701217365Sjkimpossibility that it cannot handle reentrancy. This fix repairs a couple of 702217365Sjkimissues seen in the field, especially on machines with many cores: 703217365Sjkim 704217365Sjkim 1) Delete method children only upon the exit of the last thread, 705217365Sjkim so as to not delete objects out from under other running threads 706217365Sjkim (and possibly causing a fault.) 707217365Sjkim 2) Set the "serialized" bit for the method only upon the exit of the 708217365Sjkim Last thread, so as to not cause deadlock when running threads 709217365Sjkim attempt to exit. 710217365Sjkim 3) Cleanup the use of the AML "MethodFlags" and internal method flags 711217365Sjkim so that there is no longer any confusion between the two. 712217365Sjkim 713217365Sjkim Lin Ming, Bob Moore. Reported by dana.myers@oracle.com. 714217365Sjkim 715217365SjkimDebugger: Now lock the namespace for duration of a namespace dump. Prevents 716217365Sjkimissues if the namespace is changing dynamically underneath the debugger. 717217365SjkimEspecially affects temporary namespace nodes, since the debugger displays 718217365Sjkimthese also. 719217365Sjkim 720217365SjkimUpdated the ordering of include files. The ACPICA headers should appear 721217365Sjkimbefore any compiler-specific headers (stdio.h, etc.) so that acenv.h can set 722217365Sjkimany necessary compiler-specific defines, etc. Affects the ACPI-related tools 723217365Sjkimand utilities. 724217365Sjkim 725217365SjkimUpdated all ACPICA copyrights and signons to 2011. Added the 2011 copyright 726217365Sjkimto all module headers and signons, including the Linux header. This affects 727217365Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and all 728217365Sjkimutilities. 729217365Sjkim 730217365SjkimAdded project files for MS Visual Studio 2008 (VC++ 9.0). The original 731217365Sjkimproject files for VC++ 6.0 are now obsolete. New project files can be found 732217365Sjkimunder acpica/generate/msvc9. See acpica/generate/msvc9/readme.txt for 733217365Sjkimdetails. 734217365Sjkim 735217365SjkimExample Code and Data Size: These are the sizes for the OS-independent 736217365Sjkimacpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The 737220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 738217365Sjkimmuch larger code and data size. 739217365Sjkim 740217365Sjkim Previous Release (VC 6.0): 741217365Sjkim Non-Debug Version: 89.8K Code, 18.9K Data, 108.7K Total 742217365Sjkim Debug Version: 166.6K Code, 52.1K Data, 218.7K Total 743217365Sjkim Current Release (VC 9.0): 744217365Sjkim Non-Debug Version: 89.7K Code, 23.7K Data, 113.4K Total 745217365Sjkim Debug Version: 163.9K Code, 67.5K Data, 231.4K Total 746217365Sjkim 747217365Sjkim2) iASL Compiler/Disassembler and Tools: 748217365Sjkim 749220663SjkimiASL: Added generic data types to the Data Table compiler. Add "generic" data 750217365Sjkimtypes such as UINT32, String, Unicode, etc., to simplify the generation of 751217365Sjkimplatform-defined tables such as UEFI. Lin Ming. 752217365Sjkim 753220663SjkimiASL: Added listing support for the Data Table Compiler. Adds listing support 754217365Sjkim(-l) to display actual binary output for each line of input code. 755217365Sjkim 756217365Sjkim---------------------------------------- 757216471Sjkim09 December 2010. Summary of changes for version 20101209: 758216471Sjkim 759216471Sjkim1) ACPI CA Core Subsystem: 760216471Sjkim 761216471SjkimCompleted the major overhaul of the GPE support code that was begun in July 762216471Sjkim2010. Major features include: removal of _PRW execution in ACPICA (host 763216471Sjkimexecutes _PRWs anyway), cleanup of "wake" GPE interfaces and processing, 764216471Sjkimchanges to existing interfaces, simplification of GPE handler operation, and 765216471Sjkima handful of new interfaces: 766216471Sjkim 767216471Sjkim AcpiUpdateAllGpes 768216471Sjkim AcpiFinishGpe 769216471Sjkim AcpiSetupGpeForWake 770216471Sjkim AcpiSetGpeWakeMask 771216471Sjkim One new file, evxfgpe.c to consolidate all external GPE interfaces. 772216471Sjkim 773216471SjkimSee the ACPICA Programmer Reference for full details and programming 774216471Sjkiminformation. See the new section 4.4 "General Purpose Event (GPE) Support" 775216471Sjkimfor a full overview, and section 8.7 "ACPI General Purpose Event Management" 776216471Sjkimfor programming details. ACPICA BZ 858,870,877. Matthew Garrett, Lin Ming, 777216471SjkimBob Moore, Rafael Wysocki. 778216471Sjkim 779216471SjkimImplemented a new GPE feature for Windows compatibility, the "Implicit Wake 780216471SjkimGPE Notify". This feature will automatically issue a Notify(2) on a device 781216471Sjkimwhen a Wake GPE is received if there is no corresponding GPE method or 782216471Sjkimhandler. ACPICA BZ 870. 783216471Sjkim 784216471SjkimFixed a problem with the Scope() operator during table parse and load phase. 785220663SjkimDuring load phase (table load or method execution), the scope operator should 786216471Sjkimnot enter the target into the namespace. Instead, it should open a new scope 787216471Sjkimat the target location. Linux BZ 19462, ACPICA BZ 882. 788216471Sjkim 789216471SjkimExample Code and Data Size: These are the sizes for the OS-independent 790216471Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 791220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 792216471Sjkimmuch larger code and data size. 793216471Sjkim 794216471Sjkim Previous Release: 795216471Sjkim Non-Debug Version: 89.8K Code, 18.9K Data, 108.7K Total 796216471Sjkim Debug Version: 166.6K Code, 52.1K Data, 218.7K Total 797216471Sjkim Current Release: 798216471Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 799216471Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 800216471Sjkim 801216471Sjkim2) iASL Compiler/Disassembler and Tools: 802216471Sjkim 803216471SjkimiASL: Relax the alphanumeric restriction on _CID strings. These strings are 804216471Sjkim"bus-specific" per the ACPI specification, and therefore any characters are 805216471Sjkimacceptable. The only checks that can be performed are for a null string and 806216471Sjkimperhaps for a leading asterisk. ACPICA BZ 886. 807216471Sjkim 808216471SjkimiASL: Fixed a problem where a syntax error that caused a premature EOF 809216471Sjkimcondition on the source file emitted a very confusing error message. The 810216471Sjkimpremature EOF is now detected correctly. ACPICA BZ 891. 811216471Sjkim 812216471SjkimDisassembler: Decode the AccessSize within a Generic Address Structure (byte 813216471Sjkimaccess, word access, etc.) Note, this field does not allow arbitrary bit 814216471Sjkimaccess, the size is encoded as 1=byte, 2=word, 3=dword, and 4=qword. 815216471Sjkim 816216471SjkimNew: AcpiNames utility - Example namespace dump utility. Shows an example of 817216471SjkimACPICA configuration for a minimal namespace dump utility. Uses table and 818216471Sjkimnamespace managers, but no AML interpreter. Does not add any functionality 819216471Sjkimover AcpiExec, it is a subset of AcpiExec. The purpose is to show how to 820216471Sjkimpartition and configure ACPICA. ACPICA BZ 883. 821216471Sjkim 822216471SjkimAML Debugger: Increased the debugger buffer size for method return objects. 823216471SjkimWas 4K, increased to 16K. Also enhanced error messages for debugger method 824216471Sjkimexecution, including the buffer overflow case. 825216471Sjkim 826216471Sjkim---------------------------------------- 827213806Sjkim13 October 2010. Summary of changes for version 20101013: 828213806Sjkim 829213806Sjkim1) ACPI CA Core Subsystem: 830213806Sjkim 831213806SjkimAdded support to clear the PCIEXP_WAKE event. When clearing ACPI events, now 832213806Sjkimclear the PCIEXP_WAKE_STS bit in the ACPI PM1 Status Register, via 833213806SjkimHwClearAcpiStatus. Original change from Colin King. ACPICA BZ 880. 834213806Sjkim 835213806SjkimChanged the type of the predefined namespace object _TZ from ThermalZone to 836213806SjkimDevice. This was found to be confusing to the host software that processes 837213806Sjkimthe various thermal zones, since _TZ is not really a ThermalZone. However, a 838213806SjkimNotify() can still be performed on it. ACPICA BZ 876. Suggestion from Rui 839213806SjkimZhang. 840213806Sjkim 841213806SjkimAdded Windows Vista SP2 to the list of supported _OSI strings. The actual 842213806Sjkimstring is "Windows 2006 SP2". 843213806Sjkim 844213806SjkimEliminated duplicate code in AcpiUtExecute* functions. Now that the nsrepair 845213806Sjkimcode automatically repairs _HID-related strings, this type of code is no 846213806Sjkimlonger needed in Execute_HID, Execute_CID, and Execute_UID. ACPICA BZ 878. 847213806Sjkim 848213806SjkimExample Code and Data Size: These are the sizes for the OS-independent 849213806Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 850220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 851213806Sjkimmuch larger code and data size. 852213806Sjkim 853213806Sjkim Previous Release: 854213806Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 855213806Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 856213806Sjkim Current Release: 857213806Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 858213806Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 859213806Sjkim 860213806Sjkim2) iASL Compiler/Disassembler and Tools: 861213806Sjkim 862213806SjkimiASL: Implemented additional compile-time validation for _HID strings. The 863220663Sjkimnon-hex prefix (such as "PNP" or "ACPI") must be uppercase, and the length of 864213806Sjkimthe string must be exactly seven or eight characters. For both _HID and _CID 865213806Sjkimstrings, all characters must be alphanumeric. ACPICA BZ 874. 866213806Sjkim 867213806SjkimiASL: Allow certain "null" resource descriptors. Some BIOS code creates 868220663Sjkimdescriptors that are mostly or all zeros, with the expectation that they will 869220663Sjkimbe filled in at runtime. iASL now allows this as long as there is a "resource 870213806Sjkimtag" (name) associated with the descriptor, which gives the ASL a handle 871213806Sjkimneeded to modify the descriptor. ACPICA BZ 873. 872213806Sjkim 873213806SjkimAdded single-thread support to the generic Unix application OSL. Primarily 874213806Sjkimfor iASL support, this change removes the use of semaphores in the single- 875213806Sjkimthreaded ACPICA tools/applications - increasing performance. The 876213806Sjkim_MULTI_THREADED option was replaced by the (reverse) ACPI_SINGLE_THREADED 877213806Sjkimoption. ACPICA BZ 879. 878213806Sjkim 879220663SjkimAcpiExec: several fixes for the 64-bit version. Adds XSDT support and support 880213806Sjkimfor 64-bit DSDT/FACS addresses in the FADT. Lin Ming. 881213806Sjkim 882213806SjkimiASL: Moved all compiler messages to a new file, aslmessages.h. 883213806Sjkim 884213806Sjkim---------------------------------------- 885212761Sjkim15 September 2010. Summary of changes for version 20100915: 886212761Sjkim 887212761Sjkim1) ACPI CA Core Subsystem: 888212761Sjkim 889220663SjkimRemoved the AcpiOsDerivePciId OSL interface. The various host implementations 890212761Sjkimof this function were not OS-dependent and are now obsolete and can be 891212761Sjkimremoved from all host OSLs. This function has been replaced by 892212761SjkimAcpiHwDerivePciId, which is now part of the ACPICA core code. 893212761SjkimAcpiHwDerivePciId has been implemented without recursion. Adds one new 894212761Sjkimmodule, hwpci.c. ACPICA BZ 857. 895212761Sjkim 896212761SjkimImplemented a dynamic repair for _HID and _CID strings. The following 897212761Sjkimproblems are now repaired at runtime: 1) Remove a leading asterisk in the 898212761Sjkimstring, and 2) the entire string is uppercased. Both repairs are in 899212761Sjkimaccordance with the ACPI specification and will simplify host driver code. 900212761SjkimACPICA BZ 871. 901212761Sjkim 902212761SjkimThe ACPI_THREAD_ID type is no longer configurable, internally it is now 903220663Sjkimalways UINT64. This simplifies the ACPICA code, especially any printf output. 904212761SjkimUINT64 is the only common data type for all thread_id types across all 905212761Sjkimoperating systems. It is now up to the host OSL to cast the native thread_id 906212761Sjkimtype to UINT64 before returning the value to ACPICA (via AcpiOsGetThreadId). 907212761SjkimLin Ming, Bob Moore. 908212761Sjkim 909212761SjkimAdded the ACPI_INLINE type to enhance the ACPICA configuration. The "inline" 910212761Sjkimkeyword is not standard across compilers, and this type allows inline to be 911212761Sjkimconfigured on a per-compiler basis. Lin Ming. 912212761Sjkim 913212761SjkimMade the system global AcpiGbl_SystemAwakeAndRunning publically available. 914212761SjkimAdded an extern for this boolean in acpixf.h. Some hosts utilize this value 915212761Sjkimduring suspend/restore operations. ACPICA BZ 869. 916212761Sjkim 917212761SjkimAll code that implements error/warning messages with the "ACPI:" prefix has 918212761Sjkimbeen moved to a new module, utxferror.c. 919212761Sjkim 920212761SjkimThe UINT64_OVERLAY was moved to utmath.c, which is the only module where it 921212761Sjkimis used. ACPICA BZ 829. Lin Ming, Bob Moore. 922212761Sjkim 923212761SjkimExample Code and Data Size: These are the sizes for the OS-independent 924212761Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 925220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 926212761Sjkimmuch larger code and data size. 927212761Sjkim 928212761Sjkim Previous Release: 929212761Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 930212761Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 931212761Sjkim Current Release: 932212761Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 933212761Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 934212761Sjkim 935212761Sjkim2) iASL Compiler/Disassembler and Tools: 936212761Sjkim 937212761SjkimiASL/Disassembler: Write ACPI errors to stderr instead of the output file. 938212761SjkimThis keeps the output files free of random error messages that may originate 939212761Sjkimfrom within the namespace/interpreter code. Used this opportunity to merge 940212761Sjkimall ACPI:-style messages into a single new module, utxferror.c. ACPICA BZ 941212761Sjkim866. Lin Ming, Bob Moore. 942212761Sjkim 943212761SjkimTools: update some printfs for ansi warnings on size_t. Handle width change 944212761Sjkimof size_t on 32-bit versus 64-bit generations. Lin Ming. 945212761Sjkim 946212761Sjkim---------------------------------------- 947210976Sjkim06 August 2010. Summary of changes for version 20100806: 948210976Sjkim 949210976Sjkim1) ACPI CA Core Subsystem: 950210976Sjkim 951210976SjkimDesigned and implemented a new host interface to the _OSI support code. This 952210976Sjkimwill allow the host to dynamically add or remove multiple _OSI strings, as 953210976Sjkimwell as install an optional handler that is called for each _OSI invocation. 954220663SjkimAlso added a new AML debugger command, 'osi' to display and modify the global 955210976Sjkim_OSI string table, and test support in the AcpiExec utility. See the ACPICA 956210976Sjkimreference manual for full details. Lin Ming, Bob Moore. ACPICA BZ 836. 957210976SjkimNew Functions: 958210976Sjkim AcpiInstallInterface - Add an _OSI string. 959210976Sjkim AcpiRemoveInterface - Delete an _OSI string. 960210976Sjkim AcpiInstallInterfaceHandler - Install optional _OSI handler. 961210976SjkimObsolete Functions: 962210976Sjkim AcpiOsValidateInterface - no longer used. 963210976SjkimNew Files: 964210976Sjkim source/components/utilities/utosi.c 965210976Sjkim 966210976SjkimRe-introduced the support to enable multi-byte transfers for Embedded 967210976SjkimController (EC) operation regions. A reported problem was found to be a bug 968210976Sjkimin the host OS, not in the multi-byte support. Previously, the maximum data 969210976Sjkimsize passed to the EC operation region handler was a single byte. There are 970210976Sjkimoften EC Fields larger than one byte that need to be transferred, and it is 971210976Sjkimuseful for the EC driver to lock these as a single transaction. This change 972210976Sjkimenables single transfers larger than 8 bits. This effectively changes the 973210976Sjkimaccess to the EC space from ByteAcc to AnyAcc, and will probably require 974210976Sjkimchanges to the host OS Embedded Controller driver to enable 16/32/64/256-bit 975210976Sjkimtransfers in addition to 8-bit transfers. Alexey Starikovskiy, Lin Ming. 976210976Sjkim 977210976SjkimFixed a problem with the prototype for AcpiOsReadPciConfiguration. The 978210976Sjkimprototype in acpiosxf.h had the output value pointer as a (void *). 979210976SjkimIt should be a (UINT64 *). This may affect some host OSL code. 980210976Sjkim 981210976SjkimFixed a couple problems with the recently modified Linux makefiles for iASL 982210976Sjkimand AcpiExec. These new makefiles place the generated object files in the 983220663Sjkimlocal directory so that there can be no collisions between the files that are 984210976Sjkimshared between them that are compiled with different options. 985210976Sjkim 986210976SjkimExample Code and Data Size: These are the sizes for the OS-independent 987210976Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 988220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 989210976Sjkimmuch larger code and data size. 990210976Sjkim 991210976Sjkim Previous Release: 992210976Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 993210976Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 994210976Sjkim Current Release: 995210976Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 996210976Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 997210976Sjkim 998210976Sjkim2) iASL Compiler/Disassembler and Tools: 999210976Sjkim 1000210976SjkimiASL/Disassembler: Added a new option (-da, "disassemble all") to load the 1001210976Sjkimnamespace from and disassemble an entire group of AML files. Useful for 1002210976Sjkimloading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn) and 1003210976Sjkimdisassembling with one simple command. ACPICA BZ 865. Lin Ming. 1004210976Sjkim 1005210976SjkimiASL: Allow multiple invocations of -e option. This change allows multiple 1006210976Sjkimuses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ 834. 1007210976SjkimLin Ming. 1008210976Sjkim 1009210976Sjkim---------------------------------------- 1010209746Sjkim02 July 2010. Summary of changes for version 20100702: 1011209746Sjkim 1012209746Sjkim1) ACPI CA Core Subsystem: 1013209746Sjkim 1014209746SjkimImplemented several updates to the recently added GPE reference count 1015209746Sjkimsupport. The model for "wake" GPEs is changing to give the host OS complete 1016209746Sjkimcontrol of these GPEs. Eventually, the ACPICA core will not execute any _PRW 1017209746Sjkimmethods, since the host already must execute them. Also, additional changes 1018209746Sjkimwere made to help ensure that the reference counts are kept in proper 1019209746Sjkimsynchronization with reality. Rafael J. Wysocki. 1020209746Sjkim 1021209746Sjkim1) Ensure that GPEs are not enabled twice during initialization. 1022209746Sjkim2) Ensure that GPE enable masks stay in sync with the reference count. 1023209746Sjkim3) Do not inadvertently enable GPEs when writing GPE registers. 1024209746Sjkim4) Remove the internal wake reference counter and add new AcpiGpeWakeup 1025209746Sjkiminterface. This interface will set or clear individual GPEs for wakeup. 1026209746Sjkim5) Remove GpeType argument from AcpiEnable and AcpiDisable. These interfaces 1027209746Sjkimare now used for "runtime" GPEs only. 1028209746Sjkim 1029220663SjkimChanged the behavior of the GPE install/remove handler interfaces. The GPE is 1030209746Sjkimno longer disabled during this process, as it was found to cause problems on 1031209746Sjkimsome machines. Rafael J. Wysocki. 1032209746Sjkim 1033209746SjkimReverted a change introduced in version 20100528 to enable Embedded 1034220663SjkimController multi-byte transfers. This change was found to cause problems with 1035209746SjkimIndex Fields and possibly Bank Fields. It will be reintroduced when these 1036209746Sjkimproblems have been resolved. 1037209746Sjkim 1038209746SjkimFixed a problem with references to Alias objects within Package Objects. A 1039209746Sjkimreference to an Alias within the definition of a Package was not always 1040209746Sjkimresolved properly. Aliases to objects like Processors, Thermal zones, etc. 1041220663Sjkimwere resolved to the actual object instead of a reference to the object as it 1042209746Sjkimshould be. Package objects are only allowed to contain integer, string, 1043209746Sjkimbuffer, package, and reference objects. Redhat bugzilla 608648. 1044209746Sjkim 1045209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 1046209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1047220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1048209746Sjkimmuch larger code and data size. 1049209746Sjkim 1050209746Sjkim Previous Release: 1051209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 1052209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 1053209746Sjkim Current Release: 1054209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 1055209746Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 1056209746Sjkim 1057209746Sjkim2) iASL Compiler/Disassembler and Tools: 1058209746Sjkim 1059209746SjkimiASL: Implemented a new compiler subsystem to allow definition and 1060209746Sjkimcompilation of the non-AML ACPI tables such as FADT, MADT, SRAT, etc. These 1061209746Sjkimare called "ACPI Data Tables", and the new compiler is the "Data Table 1062209746SjkimCompiler". This compiler is intended to simplify the existing error-prone 1063209746Sjkimprocess of creating these tables for the BIOS, as well as allowing the 1064209746Sjkimdisassembly, modification, recompilation, and override of existing ACPI data 1065209746Sjkimtables. See the iASL User Guide for detailed information. 1066209746Sjkim 1067209746SjkimiASL: Implemented a new Template Generator option in support of the new Data 1068209746SjkimTable Compiler. This option will create examples of all known ACPI tables 1069209746Sjkimthat can be used as the basis for table development. See the iASL 1070209746Sjkimdocumentation and the -T option. 1071209746Sjkim 1072209746SjkimDisassembler and headers: Added support for the WDDT ACPI table (Watchdog 1073209746SjkimDescriptor Table). 1074209746Sjkim 1075209746SjkimUpdated the Linux makefiles for iASL and AcpiExec to place the generated 1076209746Sjkimobject files in the local directory so that there can be no collisions 1077209746Sjkimbetween the shared files between them that are generated with different 1078209746Sjkimoptions. 1079209746Sjkim 1080209746SjkimAdded support for Mac OS X in the Unix OSL used for iASL and AcpiExec. Use 1081209746Sjkimthe #define __APPLE__ to enable this support. 1082209746Sjkim 1083209746Sjkim---------------------------------------- 1084209746Sjkim28 May 2010. Summary of changes for version 20100528: 1085209746Sjkim 1086209746SjkimNote: The ACPI 4.0a specification was released on April 5, 2010 and is 1087209746Sjkimavailable at www.acpi.info. This is primarily an errata release. 1088209746Sjkim 1089209746Sjkim1) ACPI CA Core Subsystem: 1090209746Sjkim 1091209746SjkimUndefined ACPI tables: We are looking for the definitions for the following 1092209746SjkimACPI tables that have been seen in the field: ATKG, IEIT, GSCI. 1093209746Sjkim 1094209746SjkimImplemented support to enable multi-byte transfers for Embedded Controller 1095209746Sjkim(EC) operation regions. Previously, the maximum data size passed to the EC 1096209746Sjkimoperation region handler was a single byte. There are often EC Fields larger 1097220663Sjkimthan one byte that need to be transferred, and it is useful for the EC driver 1098209746Sjkimto lock these as a single transaction. This change enables single transfers 1099209746Sjkimlarger than 8 bits. This effectively changes the access to the EC space from 1100209746SjkimByteAcc to AnyAcc, and will probably require changes to the host OS Embedded 1101209746SjkimController driver to enable 16/32/64/256-bit transfers in addition to 8-bit 1102209746Sjkimtransfers. Alexey Starikovskiy, Lin Ming 1103209746Sjkim 1104209746SjkimImplemented a performance enhancement for namespace search and access. This 1105209746Sjkimchange enhances the performance of namespace searches and walks by adding a 1106209746Sjkimbackpointer to the parent in each namespace node. On large namespaces, this 1107209746Sjkimchange can improve overall ACPI performance by up to 9X. Adding a pointer to 1108209746Sjkimeach namespace node increases the overall size of the internal namespace by 1109209746Sjkimabout 5%, since each namespace entry usually consists of both a namespace 1110209746Sjkimnode and an ACPI operand object. However, this is the first growth of the 1111209746Sjkimnamespace in ten years. ACPICA bugzilla 817. Alexey Starikovskiy. 1112209746Sjkim 1113209746SjkimImplemented a performance optimization that reduces the number of namespace 1114220663Sjkimwalks. On control method exit, only walk the namespace if the method is known 1115220663Sjkimto have created namespace objects outside of its local scope. Previously, the 1116209746Sjkimentire namespace was traversed on each control method exit. This change can 1117220663Sjkimimprove overall ACPI performance by up to 3X. Alexey Starikovskiy, Bob Moore. 1118209746Sjkim 1119220663SjkimAdded support to truncate I/O addresses to 16 bits for Windows compatibility. 1120209746SjkimSome ASL code has been seen in the field that inadvertently has bits set 1121209746Sjkimabove bit 15. This feature is optional and is enabled if the BIOS requests 1122209746Sjkimany Windows OSI strings. It can also be enabled by the host OS. Matthew 1123209746SjkimGarrett, Bob Moore. 1124209746Sjkim 1125209746SjkimAdded support to limit the maximum time for the ASL Sleep() operator. To 1126209746Sjkimprevent accidental deep sleeps, limit the maximum time that Sleep() will 1127209746Sjkimactually sleep. Configurable, the default maximum is two seconds. ACPICA 1128209746Sjkimbugzilla 854. 1129209746Sjkim 1130209746SjkimAdded run-time validation support for the _WDG and_WED Microsoft predefined 1131209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 1132209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 1133209746Sjkim 1134209746SjkimExpanded all statistic counters used during namespace and device 1135209746Sjkiminitialization from 16 to 32 bits in order to support very large namespaces. 1136209746Sjkim 1137220663SjkimReplaced all instances of %d in printf format specifiers with %u since nearly 1138209746Sjkimall integers in ACPICA are unsigned. 1139209746Sjkim 1140220663SjkimFixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly returned 1141209746Sjkimas AE_NO_HANDLER. 1142209746Sjkim 1143209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 1144209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1145220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1146209746Sjkimmuch larger code and data size. 1147209746Sjkim 1148209746Sjkim Previous Release: 1149209746Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 1150209746Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 1151209746Sjkim Current Release: 1152209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 1153209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 1154209746Sjkim 1155209746Sjkim2) iASL Compiler/Disassembler and Tools: 1156209746Sjkim 1157209746SjkimiASL: Added compiler support for the _WDG and_WED Microsoft predefined 1158209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 1159209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 1160209746Sjkim 1161209746SjkimAcpiExec: added option to disable the memory tracking mechanism. The -dt 1162209746Sjkimoption will disable the tracking mechanism, which improves performance 1163209746Sjkimconsiderably. 1164209746Sjkim 1165209746SjkimAcpiExec: Restructured the command line options into -d (disable) and -e 1166209746Sjkim(enable) options. 1167209746Sjkim 1168209746Sjkim---------------------------------------- 1169207344Sjkim28 April 2010. Summary of changes for version 20100428: 1170207344Sjkim 1171207344Sjkim1) ACPI CA Core Subsystem: 1172207344Sjkim 1173207344SjkimImplemented GPE support for dynamically loaded ACPI tables. For all GPEs, 1174207344Sjkimincluding FADT-based and GPE Block Devices, execute any _PRW methods in the 1175207344Sjkimnew table, and process any _Lxx/_Exx GPE methods in the new table. Any 1176207344Sjkimruntime GPE that is referenced by an _Lxx/_Exx method in the new table is 1177207344Sjkimimmediately enabled. Handles the FADT-defined GPEs as well as GPE Block 1178207344SjkimDevices. Provides compatibility with other ACPI implementations. Two new 1179220663Sjkimfiles added, evgpeinit.c and evgpeutil.c. ACPICA BZ 833. Lin Ming, Bob Moore. 1180207344Sjkim 1181207344SjkimFixed a regression introduced in version 20100331 within the table manager 1182207344Sjkimwhere initial table loading could fail. This was introduced in the fix for 1183207344SjkimAcpiReallocateRootTable. Also, renamed some of fields in the table manager 1184207344Sjkimdata structures to clarify their meaning and use. 1185207344Sjkim 1186207344SjkimFixed a possible allocation overrun during internal object copy in 1187207344SjkimAcpiUtCopySimpleObject. The original code did not correctly handle the case 1188207344Sjkimwhere the object to be copied was a namespace node. Lin Ming. ACPICA BZ 847. 1189207344Sjkim 1190207344SjkimUpdated the allocation dump routine, AcpiUtDumpAllocation and fixed a 1191220663Sjkimpossible access beyond end-of-allocation. Also, now fully validate descriptor 1192207344Sjkim(size and type) before output. Lin Ming, Bob Moore. ACPICA BZ 847 1193207344Sjkim 1194207344SjkimExample Code and Data Size: These are the sizes for the OS-independent 1195207344Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1196220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1197207344Sjkimmuch larger code and data size. 1198207344Sjkim 1199207344Sjkim Previous Release: 1200207344Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 1201207344Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 1202207344Sjkim Current Release: 1203207344Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 1204207344Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 1205207344Sjkim 1206207344Sjkim2) iASL Compiler/Disassembler and Tools: 1207207344Sjkim 1208207344SjkimiASL: Implemented Min/Max/Len/Gran validation for address resource 1209207344Sjkimdescriptors. This change implements validation for the address fields that 1210207344Sjkimare common to all address-type resource descriptors. These checks are 1211207344Sjkimimplemented: Checks for valid Min/Max, length within the Min/Max window, 1212207344Sjkimvalid granularity, Min/Max a multiple of granularity, and _MIF/_MAF as per 1213220663Sjkimtable 6-40 in the ACPI 4.0a specification. Also split the large aslrestype1.c 1214207344Sjkimand aslrestype2.c files into five new files. ACPICA BZ 840. 1215207344Sjkim 1216207344SjkimiASL: Added support for the _Wxx predefined names. This support was missing 1217207344Sjkimand these names were not recognized by the compiler as valid predefined 1218207344Sjkimnames. ACPICA BZ 851. 1219207344Sjkim 1220207344SjkimiASL: Added an error for all predefined names that are defined to return no 1221207344Sjkimvalue and thus must be implemented as Control Methods. These include all of 1222207344Sjkimthe _Lxx, _Exx, _Wxx, and _Qxx names, as well as some other miscellaneous 1223207344Sjkimnames such as _DIS, _INI, _IRC, _OFF, _ON, and _PSx. ACPICA BZ 850, 856. 1224207344Sjkim 1225207344SjkimiASL: Implemented the -ts option to emit hex AML data in ASL format, as an 1226207344SjkimASL Buffer. Allows ACPI tables to be easily included within ASL files, to be 1227207344Sjkimdynamically loaded via the Load() operator. Also cleaned up output for the - 1228207344Sjkimta and -tc options. ACPICA BZ 853. 1229207344Sjkim 1230207344SjkimTests: Added a new file with examples of extended iASL error checking. 1231207344SjkimDemonstrates the advanced error checking ability of the iASL compiler. 1232207344SjkimAvailable at tests/misc/badcode.asl. 1233207344Sjkim 1234207344Sjkim---------------------------------------- 1235206117Sjkim31 March 2010. Summary of changes for version 20100331: 1236206117Sjkim 1237206117Sjkim1) ACPI CA Core Subsystem: 1238206117Sjkim 1239206117SjkimCompleted a major update for the GPE support in order to improve support for 1240206117Sjkimshared GPEs and to simplify both host OS and ACPICA code. Added a reference 1241206117Sjkimcount mechanism to support shared GPEs that require multiple device drivers. 1242206117SjkimSeveral external interfaces have changed. One external interface has been 1243206117Sjkimremoved. One new external interface was added. Most of the GPE external 1244206117Sjkiminterfaces now use the GPE spinlock instead of the events mutex (and the 1245206117SjkimFlags parameter for many GPE interfaces has been removed.) See the updated 1246206117SjkimACPICA Programmer Reference for details. Matthew Garrett, Bob Moore, Rafael 1247206117SjkimWysocki. ACPICA BZ 831. 1248206117Sjkim 1249206117SjkimChanged: 1250206117Sjkim AcpiEnableGpe, AcpiDisableGpe, AcpiClearGpe, AcpiGetGpeStatus 1251206117SjkimRemoved: 1252206117Sjkim AcpiSetGpeType 1253206117SjkimNew: 1254206117Sjkim AcpiSetGpe 1255206117Sjkim 1256206117SjkimImplemented write support for DataTable operation regions. These regions are 1257220663Sjkimdefined via the DataTableRegion() operator. Previously, only read support was 1258220663Sjkimimplemented. The ACPI specification allows DataTableRegions to be read/write, 1259206117Sjkimhowever. 1260206117Sjkim 1261206117SjkimImplemented a new subsystem option to force a copy of the DSDT to local 1262206117Sjkimmemory. Optionally copy the entire DSDT to local memory (instead of simply 1263206117Sjkimmapping it.) There are some (albeit very rare) BIOSs that corrupt or replace 1264206117Sjkimthe original DSDT, creating the need for this option. Default is FALSE, do 1265206117Sjkimnot copy the DSDT. 1266206117Sjkim 1267206117SjkimImplemented detection of a corrupted or replaced DSDT. This change adds 1268220663Sjkimsupport to detect a DSDT that has been corrupted and/or replaced from outside 1269206117Sjkimthe OS (by firmware). This is typically catastrophic for the system, but has 1270206117Sjkimbeen seen on some machines. Once this problem has been detected, the DSDT 1271206117Sjkimcopy option can be enabled via system configuration. Lin Ming, Bob Moore. 1272206117Sjkim 1273206117SjkimFixed two problems with AcpiReallocateRootTable during the root table copy. 1274206117SjkimWhen copying the root table to the new allocation, the length used was 1275206117Sjkimincorrect. The new size was used instead of the current table size, meaning 1276206117Sjkimtoo much data was copied. Also, the count of available slots for ACPI tables 1277206117Sjkimwas not set correctly. Alexey Starikovskiy, Bob Moore. 1278206117Sjkim 1279206117SjkimExample Code and Data Size: These are the sizes for the OS-independent 1280206117Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1281220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1282206117Sjkimmuch larger code and data size. 1283206117Sjkim 1284206117Sjkim Previous Release: 1285206117Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 1286206117Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 1287206117Sjkim Current Release: 1288206117Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 1289206117Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 1290206117Sjkim 1291206117Sjkim2) iASL Compiler/Disassembler and Tools: 1292206117Sjkim 1293206117SjkimiASL: Implement limited typechecking for values returned from predefined 1294206117Sjkimcontrol methods. The type of any returned static (unnamed) object is now 1295206117Sjkimvalidated. For example, Return(1). ACPICA BZ 786. 1296206117Sjkim 1297220663SjkimiASL: Fixed a predefined name object verification regression. Fixes a problem 1298206117Sjkimintroduced in version 20100304. An error is incorrectly generated if a 1299206117Sjkimpredefined name is declared as a static named object with a value defined 1300206117Sjkimusing the keywords "Zero", "One", or "Ones". Lin Ming. 1301206117Sjkim 1302206117SjkimiASL: Added Windows 7 support for the -g option (get local ACPI tables) by 1303206117Sjkimreducing the requested registry access rights. ACPICA BZ 842. 1304206117Sjkim 1305206117SjkimDisassembler: fixed a possible fault when generating External() statements. 1306206117SjkimIntroduced in commit ae7d6fd: Properly handle externals with parent-prefix 1307206117Sjkim(carat). Fixes a string length allocation calculation. Lin Ming. 1308206117Sjkim 1309206117Sjkim---------------------------------------- 1310204773Sjkim04 March 2010. Summary of changes for version 20100304: 1311204773Sjkim 1312204773Sjkim1) ACPI CA Core Subsystem: 1313204773Sjkim 1314204773SjkimFixed a possible problem with the AML Mutex handling function 1315204773SjkimAcpiExReleaseMutex where the function could fault under the very rare 1316220663Sjkimcondition when the interpreter has blocked, the interpreter lock is released, 1317204773Sjkimthe interpreter is then reentered via the same thread, and attempts to 1318220663Sjkimacquire an AML mutex that was previously acquired. FreeBSD report 140979. Lin 1319204773SjkimMing. 1320204773Sjkim 1321204773SjkimImplemented additional configuration support for the AML "Debug Object". 1322204773SjkimOutput from the debug object can now be enabled via a global variable, 1323220663SjkimAcpiGbl_EnableAmlDebugObject. This will assist with remote machine debugging. 1324204773SjkimThis debug output is now available in the release version of ACPICA instead 1325204773Sjkimof just the debug version. Also, the entire debug output module can now be 1326204773Sjkimconfigured out of the ACPICA build if desired. One new file added, 1327204773Sjkimexecuter/exdebug.c. Lin Ming, Bob Moore. 1328204773Sjkim 1329204773SjkimAdded header support for the ACPI MCHI table (Management Controller Host 1330220663SjkimInterface Table). This table was added in ACPI 4.0, but the defining document 1331204773Sjkimhas only recently become available. 1332204773Sjkim 1333204773SjkimStandardized output of integer values for ACPICA warnings/errors. Always use 1334204773Sjkim0x prefix for hex output, always use %u for unsigned integer decimal output. 1335204773SjkimAffects ACPI_INFO, ACPI_ERROR, ACPI_EXCEPTION, and ACPI_WARNING (about 400 1336204773Sjkiminvocations.) These invocations were converted from the original 1337204773SjkimACPI_DEBUG_PRINT invocations and were not consistent. ACPICA BZ 835. 1338204773Sjkim 1339204773SjkimExample Code and Data Size: These are the sizes for the OS-independent 1340204773Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1341220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1342204773Sjkimmuch larger code and data size. 1343204773Sjkim 1344204773Sjkim Previous Release: 1345204773Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 1346204773Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 1347204773Sjkim Current Release: 1348204773Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 1349204773Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 1350204773Sjkim 1351204773Sjkim2) iASL Compiler/Disassembler and Tools: 1352204773Sjkim 1353204773SjkimiASL: Implemented typechecking support for static (non-control method) 1354204773Sjkimpredefined named objects that are declared with the Name() operator. For 1355204773Sjkimexample, the type of this object is now validated to be of type Integer: 1356220663SjkimName(_BBN, 1). This change migrates the compiler to using the core predefined 1357204773Sjkimname table instead of maintaining a local version. Added a new file, 1358204773Sjkimaslpredef.c. ACPICA BZ 832. 1359204773Sjkim 1360204773SjkimDisassembler: Added support for the ACPI 4.0 MCHI table. 1361204773Sjkim 1362204773Sjkim---------------------------------------- 1363202771Sjkim21 January 2010. Summary of changes for version 20100121: 1364202771Sjkim 1365202771Sjkim1) ACPI CA Core Subsystem: 1366202771Sjkim 1367202771SjkimAdded the 2010 copyright to all module headers and signons. This affects 1368202771Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, the 1369202771Sjkimtools/utilities, and the test suites. 1370202771Sjkim 1371220663SjkimImplemented a change to the AcpiGetDevices interface to eliminate unnecessary 1372202771Sjkiminvocations of the _STA method. In the case where a specific _HID is 1373202771Sjkimrequested, do not run _STA until a _HID match is found. This eliminates 1374220663Sjkimpotentially dozens of _STA calls during a search for a particular device/HID, 1375202771Sjkimwhich in turn can improve boot times. ACPICA BZ 828. Lin Ming. 1376202771Sjkim 1377220663SjkimImplemented an additional repair for predefined method return values. Attempt 1378220663Sjkimto repair unexpected NULL elements within returned Package objects. Create an 1379220663SjkimInteger of value zero, a NULL String, or a zero-length Buffer as appropriate. 1380202771SjkimACPICA BZ 818. Lin Ming, Bob Moore. 1381202771Sjkim 1382202771SjkimRemoved the obsolete ACPI_INTEGER data type. This type was introduced as the 1383202771Sjkimcode was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with 1384202771Sjkim64-bit AML integers). It is now obsolete and this change removes it from the 1385202771SjkimACPICA code base, replaced by UINT64. The original typedef has been retained 1386202771Sjkimfor now for compatibility with existing device driver code. ACPICA BZ 824. 1387202771Sjkim 1388202771SjkimRemoved the unused UINT32_STRUCT type, and the obsolete Integer64 field in 1389202771Sjkimthe parse tree object. 1390202771Sjkim 1391220663SjkimAdded additional warning options for the gcc-4 generation. Updated the source 1392202771Sjkimaccordingly. This includes some code restructuring to eliminate unreachable 1393202771Sjkimcode, elimination of some gotos, elimination of unused return values, some 1394202771Sjkimadditional casting, and removal of redundant declarations. 1395202771Sjkim 1396202771SjkimExample Code and Data Size: These are the sizes for the OS-independent 1397202771Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1398220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1399202771Sjkimmuch larger code and data size. 1400202771Sjkim 1401202771Sjkim Previous Release: 1402202771Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 1403202771Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 1404202771Sjkim Current Release: 1405202771Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 1406202771Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 1407202771Sjkim 1408202771Sjkim2) iASL Compiler/Disassembler and Tools: 1409202771Sjkim 1410202771SjkimNo functional changes for this release. 1411202771Sjkim 1412202771Sjkim---------------------------------------- 1413200553Sjkim14 December 2009. Summary of changes for version 20091214: 1414200553Sjkim 1415200553Sjkim1) ACPI CA Core Subsystem: 1416200553Sjkim 1417200553SjkimEnhanced automatic data type conversions for predefined name repairs. This 1418200553Sjkimchange expands the automatic repairs/conversions for predefined name return 1419200553Sjkimvalues to make Integers, Strings, and Buffers fully interchangeable. Also, a 1420220663SjkimBuffer can be converted to a Package of Integers if necessary. The nsrepair.c 1421200553Sjkimmodule was completely restructured. Lin Ming, Bob Moore. 1422200553Sjkim 1423220663SjkimImplemented automatic removal of null package elements during predefined name 1424200553Sjkimrepairs. This change will automatically remove embedded and trailing NULL 1425200553Sjkimpackage elements from returned package objects that are defined to contain a 1426200553Sjkimvariable number of sub-packages. The driver is then presented with a package 1427200553Sjkimwith no null elements to deal with. ACPICA BZ 819. 1428200553Sjkim 1429200553SjkimImplemented a repair for the predefined _FDE and _GTM names. The expected 1430200553Sjkimreturn value for both names is a Buffer of 5 DWORDs. This repair fixes two 1431200553Sjkimpossible problems (both seen in the field), where a package of integers is 1432220663Sjkimreturned, or a buffer of BYTEs is returned. With assistance from Jung-uk Kim. 1433200553Sjkim 1434200553SjkimImplemented additional module-level code support. This change will properly 1435200553Sjkimexecute module-level code that is not at the root of the namespace (under a 1436200553SjkimDevice object, etc.). Now executes the code within the current scope instead 1437200553Sjkimof the root. ACPICA BZ 762. Lin Ming. 1438200553Sjkim 1439200553SjkimFixed possible mutex acquisition errors when running _REG methods. Fixes a 1440200553Sjkimproblem where mutex errors can occur when running a _REG method that is in 1441200553Sjkimthe same scope as a method-defined operation region or an operation region 1442200553Sjkimunder a module-level IF block. This type of code is rare, so the problem has 1443200553Sjkimnot been seen before. ACPICA BZ 826. Lin Ming, Bob Moore. 1444200553Sjkim 1445200553SjkimFixed a possible memory leak during module-level code execution. An object 1446200553Sjkimcould be leaked for each block of executed module-level code if the 1447220663Sjkiminterpreter slack mode is enabled This change deletes any implicitly returned 1448200553Sjkimobject from the module-level code block. Lin Ming. 1449200553Sjkim 1450200553SjkimRemoved messages for successful predefined repair(s). The repair mechanism 1451200553Sjkimwas considered too wordy. Now, messages are only unconditionally emitted if 1452200553Sjkimthe return object cannot be repaired. Existing messages for successful 1453200553Sjkimrepairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827. 1454200553Sjkim 1455200553SjkimExample Code and Data Size: These are the sizes for the OS-independent 1456200553Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1457220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1458200553Sjkimmuch larger code and data size. 1459200553Sjkim 1460200553Sjkim Previous Release: 1461200553Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 1462200553Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 1463200553Sjkim Current Release: 1464200553Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 1465200553Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 1466200553Sjkim 1467200553Sjkim2) iASL Compiler/Disassembler and Tools: 1468200553Sjkim 1469220663SjkimiASL: Fixed a regression introduced in 20091112 where intermediate .SRC files 1470200553Sjkimwere no longer automatically removed at the termination of the compile. 1471200553Sjkim 1472200553Sjkimacpiexec: Implemented the -f option to specify default region fill value. 1473200553SjkimThis option specifies the value used to initialize buffers that simulate 1474200553Sjkimoperation regions. Default value is zero. Useful for debugging problems that 1475200553Sjkimdepend on a specific initial value for a region or field. 1476200553Sjkim 1477200553Sjkim---------------------------------------- 1478199337Sjkim12 November 2009. Summary of changes for version 20091112: 1479199337Sjkim 1480199337Sjkim1) ACPI CA Core Subsystem: 1481199337Sjkim 1482199337SjkimImplemented a post-order callback to AcpiWalkNamespace. The existing 1483199337Sjkiminterface only has a pre-order callback. This change adds an additional 1484199337Sjkimparameter for a post-order callback which will be more useful for bus scans. 1485199337SjkimACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference. 1486199337Sjkim 1487199337SjkimModified the behavior of the operation region memory mapping cache for 1488199337SjkimSystemMemory. Ensure that the memory mappings created for operation regions 1489199337Sjkimdo not cross 4K page boundaries. Crossing a page boundary while mapping 1490199337Sjkimregions can cause kernel warnings on some hosts if the pages have different 1491199337Sjkimattributes. Such regions are probably BIOS bugs, and this is the workaround. 1492199337SjkimLinux BZ 14445. Lin Ming. 1493199337Sjkim 1494199337SjkimImplemented an automatic repair for predefined methods that must return 1495220663Sjkimsorted lists. This change will repair (by sorting) packages returned by _ALR, 1496220663Sjkim_PSS, and _TSS. Drivers can now assume that the packages are correctly sorted 1497199337Sjkimand do not contain NULL package elements. Adds one new file, 1498199337Sjkimnamespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore. 1499199337Sjkim 1500199337SjkimFixed a possible fault during predefined name validation if a return Package 1501199337Sjkimobject contains NULL elements. Also adds a warning if a NULL element is 1502220663Sjkimfollowed by any non-null elements. ACPICA BZ 813, 814. Future enhancement may 1503199337Sjkiminclude repair or removal of all such NULL elements where possible. 1504199337Sjkim 1505199337SjkimImplemented additional module-level executable AML code support. This change 1506199337Sjkimwill execute module-level code that is not at the root of the namespace 1507220663Sjkim(under a Device object, etc.) at table load time. Module-level executable AML 1508199337Sjkimcode has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming. 1509199337Sjkim 1510199337SjkimImplemented a new internal function to create Integer objects. This function 1511199337Sjkimsimplifies miscellaneous object creation code. ACPICA BZ 823. 1512199337Sjkim 1513199337SjkimReduced the severity of predefined repair messages, Warning to Info. Since 1514199337Sjkimthe object was successfully repaired, a warning is too severe. Reduced to an 1515220663Sjkiminfo message for now. These messages may eventually be changed to debug-only. 1516199337SjkimACPICA BZ 812. 1517199337Sjkim 1518199337SjkimExample Code and Data Size: These are the sizes for the OS-independent 1519199337Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1520220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1521199337Sjkimmuch larger code and data size. 1522199337Sjkim 1523199337Sjkim Previous Release: 1524199337Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 1525199337Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 1526199337Sjkim Current Release: 1527199337Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 1528199337Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 1529199337Sjkim 1530199337Sjkim2) iASL Compiler/Disassembler and Tools: 1531199337Sjkim 1532199337SjkimiASL: Implemented Switch() with While(1) so that Break works correctly. This 1533199337Sjkimchange correctly implements the Switch operator with a surrounding While(1) 1534199337Sjkimso that the Break operator works as expected. ACPICA BZ 461. Lin Ming. 1535199337Sjkim 1536199337SjkimiASL: Added a message if a package initializer list is shorter than package 1537199337Sjkimlength. Adds a new remark for a Package() declaration if an initializer list 1538199337Sjkimexists, but is shorter than the declared length of the package. Although 1539199337Sjkimtechnically legal, this is probably a coding error and it is seen in the 1540199337Sjkimfield. ACPICA BZ 815. Lin Ming, Bob Moore. 1541199337Sjkim 1542220663SjkimiASL: Fixed a problem where the compiler could fault after the maximum number 1543199337Sjkimof errors was reached (200). 1544199337Sjkim 1545220663Sjkimacpixtract: Fixed a possible warning for pointer cast if the compiler warning 1546199337Sjkimlevel set very high. 1547199337Sjkim 1548199337Sjkim---------------------------------------- 1549198237Sjkim13 October 2009. Summary of changes for version 20091013: 1550197104Sjkim 1551197104Sjkim1) ACPI CA Core Subsystem: 1552197104Sjkim 1553198237SjkimFixed a problem where an Operation Region _REG method could be executed more 1554198237Sjkimthan once. If a custom address space handler is installed by the host before 1555198237Sjkimthe "initialize operation regions" phase of the ACPICA initialization, any 1556198237Sjkim_REG methods for that address space could be executed twice. This change 1557198237Sjkimfixes the problem. ACPICA BZ 427. Lin Ming. 1558198237Sjkim 1559198237SjkimFixed a possible memory leak for the Scope() ASL operator. When the exact 1560198237Sjkiminvocation of "Scope(\)" is executed (change scope to root), one internal 1561198237Sjkimoperand object was leaked. Lin Ming. 1562198237Sjkim 1563198237SjkimImplemented a run-time repair for the _MAT predefined method. If the _MAT 1564198237Sjkimreturn value is defined as a Field object in the AML, and the field 1565220663Sjkimsize is less than or equal to the default width of an integer (32 or 64),_MAT 1566198237Sjkimcan incorrectly return an Integer instead of a Buffer. ACPICA now 1567198237Sjkimautomatically repairs this problem. ACPICA BZ 810. 1568198237Sjkim 1569198237SjkimImplemented a run-time repair for the _BIF and _BIX predefined methods. The 1570198237Sjkim"OEM Information" field is often incorrectly returned as an Integer with 1571198237Sjkimvalue zero if the field is not supported by the platform. This is due to an 1572198237Sjkimambiguity in the ACPI specification. The field should always be a string. 1573198237SjkimACPICA now automatically repairs this problem by returning a NULL string 1574198237Sjkimwithin the returned Package. ACPICA BZ 807. 1575198237Sjkim 1576198237SjkimExample Code and Data Size: These are the sizes for the OS-independent 1577198237Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1578220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1579198237Sjkimmuch larger code and data size. 1580198237Sjkim 1581198237Sjkim Previous Release: 1582198237Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 1583198237Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 1584198237Sjkim Current Release: 1585198237Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 1586198237Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 1587198237Sjkim 1588198237Sjkim2) iASL Compiler/Disassembler and Tools: 1589198237Sjkim 1590198237SjkimDisassembler: Fixed a problem where references to external symbols that 1591198237Sjkimcontained one or more parent-prefixes (carats) were not handled correctly, 1592198237Sjkimpossibly causing a fault. ACPICA BZ 806. Lin Ming. 1593198237Sjkim 1594198237SjkimDisassembler: Restructured the code so that all functions that handle 1595198237Sjkimexternal symbols are in a single module. One new file is added, 1596198237Sjkimcommon/dmextern.c. 1597198237Sjkim 1598198237SjkimAML Debugger: Added a max count argument for the Batch command (which 1599198237Sjkimexecutes multiple predefined methods within the namespace.) 1600198237Sjkim 1601198237SjkimiASL: Updated the compiler documentation (User Reference.) Available at 1602198237Sjkimhttp://www.acpica.org/documentation/. ACPICA BZ 750. 1603198237Sjkim 1604198237SjkimAcpiXtract: Updated for Lint and other formatting changes. Close all open 1605198237Sjkimfiles. 1606198237Sjkim 1607198237Sjkim---------------------------------------- 1608198237Sjkim03 September 2009. Summary of changes for version 20090903: 1609198237Sjkim 1610198237Sjkim1) ACPI CA Core Subsystem: 1611198237Sjkim 1612197104SjkimFor Windows Vista compatibility, added the automatic execution of an _INI 1613197104Sjkimmethod located at the namespace root (\_INI). This method is executed at 1614197104Sjkimtable load time. This support is in addition to the automatic execution of 1615197104Sjkim\_SB._INI. Lin Ming. 1616197104Sjkim 1617197104SjkimFixed a possible memory leak in the interpreter for AML package objects if 1618197104Sjkimthe package initializer list is longer than the defined size of the package. 1619197104SjkimThis apparently can only happen if the BIOS changes the package size on the 1620197104Sjkimfly (seen in a _PSS object), as ASL compilers do not allow this. The 1621220663Sjkiminterpreter will truncate the package to the defined size (and issue an error 1622220663Sjkimmessage), but previously could leave the extra objects undeleted if they were 1623197104Sjkimpre-created during the argument processing (such is the case if the package 1624197104Sjkimconsists of a number of sub-packages as in the _PSS.) ACPICA BZ 805. 1625197104Sjkim 1626197104SjkimFixed a problem seen when a Buffer or String is stored to itself via ASL. 1627197104SjkimThis has been reported in the field. Previously, ACPICA would zero out the 1628197104Sjkimbuffer/string. Now, the operation is treated as a noop. Provides Windows 1629197104Sjkimcompatibility. ACPICA BZ 803. Lin Ming. 1630197104Sjkim 1631197104SjkimRemoved an extraneous error message for ASL constructs of the form 1632197104SjkimStore(LocalX,LocalX) when LocalX is uninitialized. These curious statements 1633197104Sjkimare seen in many BIOSs and are once again treated as NOOPs and no error is 1634197104Sjkimemitted when they are encountered. ACPICA BZ 785. 1635197104Sjkim 1636197104SjkimFixed an extraneous warning message if a _DSM reserved method returns a 1637197104SjkimPackage object. _DSM can return any type of object, so validation on the 1638197104Sjkimreturn type cannot be performed. ACPICA BZ 802. 1639197104Sjkim 1640197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 1641197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1642220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1643197104Sjkimmuch larger code and data size. 1644197104Sjkim 1645197104Sjkim Previous Release: 1646197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 1647197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 1648197104Sjkim Current Release: 1649197104Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 1650197104Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 1651197104Sjkim 1652197104Sjkim2) iASL Compiler/Disassembler and Tools: 1653197104Sjkim 1654197104SjkimiASL: Fixed a problem with the use of the Alias operator and Resource 1655197104SjkimTemplates. The correct alias is now constructed and no error is emitted. 1656197104SjkimACPICA BZ 738. 1657197104Sjkim 1658197104SjkimiASL: Implemented the -I option to specify additional search directories for 1659197104Sjkiminclude files. Allows multiple additional search paths for include files. 1660197104SjkimDirectories are searched in the order specified on the command line (after 1661197104Sjkimthe local directory is searched.) ACPICA BZ 800. 1662197104Sjkim 1663197104SjkimiASL: Fixed a problem where the full pathname for include files was not 1664197104Sjkimemitted for warnings/errors. This caused the IDE support to not work 1665197104Sjkimproperly. ACPICA BZ 765. 1666197104Sjkim 1667197104SjkimiASL: Implemented the -@ option to specify a Windows-style response file 1668197104Sjkimcontaining additional command line options. ACPICA BZ 801. 1669197104Sjkim 1670197104SjkimAcpiExec: Added support to load multiple AML files simultaneously (such as a 1671197104SjkimDSDT and multiple SSDTs). Also added support for wildcards within the AML 1672197104Sjkimpathname. These features allow all machine tables to be easily loaded and 1673197104Sjkimdebugged together. ACPICA BZ 804. 1674197104Sjkim 1675197104SjkimDisassembler: Added missing support for disassembly of HEST table Error Bank 1676197104Sjkimsubtables. 1677197104Sjkim 1678197104Sjkim---------------------------------------- 1679197104Sjkim30 July 2009. Summary of changes for version 20090730: 1680197104Sjkim 1681197104SjkimThe ACPI 4.0 implementation for ACPICA is complete with this release. 1682197104Sjkim 1683197104Sjkim1) ACPI CA Core Subsystem: 1684197104Sjkim 1685197104SjkimACPI 4.0: Added header file support for all new and changed ACPI tables. 1686197104SjkimCompletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new 1687197104Sjkimfor ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, 1688197104SjkimEINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There 1689197104Sjkimhave been some ACPI 4.0 changes to other existing tables. Split the large 1690197104Sjkimactbl1.h header into the existing actbl2.h header. ACPICA BZ 774. 1691197104Sjkim 1692220663SjkimACPI 4.0: Implemented predefined name validation for all new names. There are 1693220663Sjkim31 new names in ACPI 4.0. The predefined validation module was split into two 1694197104Sjkimfiles. The new file is namespace/nsrepair.c. ACPICA BZ 770. 1695197104Sjkim 1696197104SjkimImplemented support for so-called "module-level executable code". This is 1697220663Sjkimexecutable AML code that exists outside of any control method and is intended 1698220663Sjkimto be executed at table load time. Although illegal since ACPI 2.0, this type 1699197104Sjkimof code still exists and is apparently still being created. Blocks of this 1700197104Sjkimcode are now detected and executed as intended. Currently, the code blocks 1701197104Sjkimmust exist under either an If, Else, or While construct; these are the 1702197104Sjkimtypical cases seen in the field. ACPICA BZ 762. Lin Ming. 1703197104Sjkim 1704197104SjkimImplemented an automatic dynamic repair for predefined names that return 1705197104Sjkimnested Package objects. This applies to predefined names that are defined to 1706197104Sjkimreturn a variable-length Package of sub-packages. If the number of sub- 1707197104Sjkimpackages is one, BIOS code is occasionally seen that creates a simple single 1708197104Sjkimpackage with no sub-packages. This code attempts to fix the problem by 1709197104Sjkimwrapping a new package object around the existing package. These methods can 1710197104Sjkimbe repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ 1711197104Sjkim790. 1712197104Sjkim 1713197104SjkimFixed a regression introduced in 20090625 for the AcpiGetDevices interface. 1714220663SjkimThe _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA 1715197104SjkimBZ 793. 1716197104Sjkim 1717197104SjkimFixed a problem with AcpiReset where the reset would silently fail if the 1718197104Sjkimregister was one of the protected I/O ports. AcpiReset now bypasses the port 1719197104Sjkimvalidation mechanism. This may eventually be driven into the AcpiRead/Write 1720197104Sjkiminterfaces. 1721197104Sjkim 1722197104SjkimFixed a regression related to the recent update of the AcpiRead/Write 1723197104Sjkiminterfaces. A sleep/suspend could fail if the optional PM2 Control register 1724197104Sjkimdoes not exist during an attempt to write the Bus Master Arbitration bit. 1725197104Sjkim(However, some hosts already delete the code that writes this bit, and the 1726197104Sjkimcode may in fact be obsolete at this date.) ACPICA BZ 799. 1727197104Sjkim 1728220663SjkimFixed a problem where AcpiTerminate could fault if inadvertently called twice 1729197104Sjkimin succession. ACPICA BZ 795. 1730197104Sjkim 1731197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 1732197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1733220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1734197104Sjkimmuch larger code and data size. 1735197104Sjkim 1736197104Sjkim Previous Release: 1737197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 1738197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 1739197104Sjkim Current Release: 1740197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 1741197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 1742197104Sjkim 1743197104Sjkim2) iASL Compiler/Disassembler and Tools: 1744197104Sjkim 1745197104SjkimACPI 4.0: Implemented disassembler support for all new ACPI tables and 1746197104Sjkimchanges to existing tables. ACPICA BZ 775. 1747197104Sjkim 1748197104Sjkim---------------------------------------- 1749197104Sjkim25 June 2009. Summary of changes for version 20090625: 1750197104Sjkim 1751197104SjkimThe ACPI 4.0 Specification was released on June 16 and is available at 1752197104Sjkimwww.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will 1753197104Sjkimcontinue for the next few releases. 1754197104Sjkim 1755197104Sjkim1) ACPI CA Core Subsystem: 1756197104Sjkim 1757197104SjkimACPI 4.0: Implemented interpreter support for the IPMI operation region 1758197104Sjkimaddress space. Includes support for bi-directional data buffers and an IPMI 1759197104Sjkimaddress space handler (to be installed by an IPMI device driver.) ACPICA BZ 1760197104Sjkim773. Lin Ming. 1761197104Sjkim 1762197104SjkimACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes 1763197104Sjkimsupport in both the header files and the disassembler. 1764197104Sjkim 1765197104SjkimCompleted a major update for the AcpiGetObjectInfo external interface. 1766197104SjkimChanges include: 1767197104Sjkim - Support for variable, unlimited length HID, UID, and CID strings. 1768197104Sjkim - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) 1769197104Sjkim - Call the _SxW power methods on behalf of a device object. 1770197104Sjkim - Determine if a device is a PCI root bridge. 1771197104Sjkim - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. 1772197104SjkimThese changes will require an update to all callers of this interface. See 1773197104Sjkimthe updated ACPICA Programmer Reference for details. One new source file has 1774197104Sjkimbeen added - utilities/utids.c. ACPICA BZ 368, 780. 1775197104Sjkim 1776197104SjkimUpdated the AcpiRead and AcpiWrite external interfaces to support 64-bit 1777197104Sjkimtransfers. The Value parameter has been extended from 32 bits to 64 bits in 1778220663Sjkimorder to support new ACPI 4.0 tables. These changes will require an update to 1779197104Sjkimall callers of these interfaces. See the ACPICA Programmer Reference for 1780197104Sjkimdetails. ACPICA BZ 768. 1781197104Sjkim 1782197104SjkimFixed several problems with AcpiAttachData. The handler was not invoked when 1783197104Sjkimthe host node was deleted. The data sub-object was not automatically deleted 1784197104Sjkimwhen the host node was deleted. The interface to the handler had an unused 1785197104Sjkimparameter, this was removed. ACPICA BZ 778. 1786197104Sjkim 1787197104SjkimEnhanced the function that dumps ACPI table headers. All non-printable 1788197104Sjkimcharacters in the string fields are now replaced with '?' (Signature, OemId, 1789197104SjkimOemTableId, and CompilerId.) ACPI tables with non-printable characters in 1790197104Sjkimthese fields are occasionally seen in the field. ACPICA BZ 788. 1791197104Sjkim 1792197104SjkimFixed a problem with predefined method repair code where the code that 1793197104Sjkimattempts to repair/convert an object of incorrect type is only executed on 1794197104Sjkimthe first time the predefined method is called. The mechanism that disables 1795197104Sjkimwarnings on subsequent calls was interfering with the repair mechanism. 1796197104SjkimACPICA BZ 781. 1797197104Sjkim 1798197104SjkimFixed a possible memory leak in the predefined validation/repair code when a 1799197104Sjkimbuffer is automatically converted to an expected string object. 1800197104Sjkim 1801197104SjkimRemoved obsolete 16-bit files from the distribution and from the current git 1802197104Sjkimtree head. ACPICA BZ 776. 1803197104Sjkim 1804197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 1805197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1806220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1807197104Sjkimmuch larger code and data size. 1808197104Sjkim 1809197104Sjkim Previous Release: 1810197104Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 1811197104Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 1812197104Sjkim Current Release: 1813197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 1814197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 1815197104Sjkim 1816197104Sjkim2) iASL Compiler/Disassembler and Tools: 1817197104Sjkim 1818197104SjkimACPI 4.0: iASL and Disassembler - implemented support for the new IPMI 1819197104Sjkimoperation region keyword. ACPICA BZ 771, 772. Lin Ming. 1820197104Sjkim 1821197104SjkimACPI 4.0: iASL - implemented compile-time validation support for all new 1822197104Sjkimpredefined names and control methods (31 total). ACPICA BZ 769. 1823197104Sjkim 1824197104Sjkim---------------------------------------- 1825193267Sjkim21 May 2009. Summary of changes for version 20090521: 1826193267Sjkim 1827193267Sjkim1) ACPI CA Core Subsystem: 1828193267Sjkim 1829193267SjkimDisabled the preservation of the SCI enable bit in the PM1 control register. 1830220663SjkimThe SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be 1831193267Sjkima "preserved" bit - "OSPM always preserves this bit position", section 1832193267Sjkim4.7.3.2.1. However, some machines fail if this bit is in fact preserved 1833193267Sjkimbecause the bit needs to be explicitly set by the OS as a workaround. No 1834193267Sjkimmachines fail if the bit is not preserved. Therefore, ACPICA no longer 1835193267Sjkimattempts to preserve this bit. 1836193267Sjkim 1837193267SjkimFixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or 1838193267Sjkimincorrectly formed _PRT package could cause a fault. Added validation to 1839193267Sjkimensure that each package element is actually a sub-package. 1840193267Sjkim 1841193267SjkimImplemented a new interface to install or override a single control method, 1842220663SjkimAcpiInstallMethod. This interface is useful when debugging in order to repair 1843193267Sjkiman existing method or to install a missing method without having to override 1844193267Sjkimthe entire ACPI table. See the ACPICA Programmer Reference for use and 1845193267Sjkimexamples. Lin Ming, Bob Moore. 1846193267Sjkim 1847193267SjkimFixed several reference count issues with the DdbHandle object that is 1848193267Sjkimcreated from a Load or LoadTable operator. Prevent premature deletion of the 1849193267Sjkimobject. Also, mark the object as invalid once the table has been unloaded. 1850193267SjkimThis is needed because the handle itself may not be deleted after the table 1851193267Sjkimunload, depending on whether it has been stored in a named object by the 1852193267Sjkimcaller. Lin Ming. 1853193267Sjkim 1854193267SjkimFixed a problem with Mutex Sync Levels. Fixed a problem where if multiple 1855193267Sjkimmutexes of the same sync level are acquired but then not released in strict 1856220663Sjkimopposite order, the internally maintained Current Sync Level becomes confused 1857193267Sjkimand can cause subsequent execution errors. ACPICA BZ 471. 1858193267Sjkim 1859193267SjkimChanged the allowable release order for ASL mutex objects. The ACPI 4.0 1860193267Sjkimspecification has been changed to make the SyncLevel for mutex objects more 1861193267Sjkimuseful. When releasing a mutex, the SyncLevel of the mutex must now be the 1862193267Sjkimsame as the current sync level. This makes more sense than the previous rule 1863193267Sjkim(SyncLevel less than or equal). This change updates the code to match the 1864193267Sjkimspecification. 1865193267Sjkim 1866193267SjkimFixed a problem with the local version of the AcpiOsPurgeCache function. The 1867193267Sjkim(local) cache must be locked during all cache object deletions. Andrew 1868193267SjkimBaumann. 1869193267Sjkim 1870193267SjkimUpdated the Load operator to use operation region interfaces. This replaces 1871193267Sjkimdirect memory mapping with region access calls. Now, all region accesses go 1872193267Sjkimthrough the installed region handler as they should. 1873193267Sjkim 1874193267SjkimSimplified and optimized the NsGetNextNode function. Reduced parameter count 1875193267Sjkimand reduced code for this frequently used function. 1876193267Sjkim 1877193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1878193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1879220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1880193267Sjkimmuch larger code and data size. 1881193267Sjkim 1882193267Sjkim Previous Release: 1883193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1884193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1885193267Sjkim Current Release: 1886193267Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 1887193267Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 1888193267Sjkim 1889193267Sjkim2) iASL Compiler/Disassembler and Tools: 1890193267Sjkim 1891193267SjkimDisassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems 1892193267Sjkimwith sub-table disassembly and handling invalid sub-tables. Attempt recovery 1893193267Sjkimafter an invalid sub-table ID. 1894193267Sjkim 1895193267Sjkim---------------------------------------- 1896193267Sjkim22 April 2009. Summary of changes for version 20090422: 1897193267Sjkim 1898193267Sjkim1) ACPI CA Core Subsystem: 1899193267Sjkim 1900193267SjkimFixed a compatibility issue with the recently released I/O port protection 1901193267Sjkimmechanism. For windows compatibility, 1) On a port protection violation, 1902193267Sjkimsimply ignore the request and do not return an exception (allow the control 1903193267Sjkimmethod to continue execution.) 2) If only part of the request overlaps a 1904220663Sjkimprotected port, read/write the individual ports that are not protected. Linux 1905193267SjkimBZ 13036. Lin Ming 1906193267Sjkim 1907220663SjkimEnhanced the execution of the ASL/AML BreakPoint operator so that it actually 1908193267Sjkimbreaks into the AML debugger if the debugger is present. This matches the 1909193267SjkimACPI-defined behavior. 1910193267Sjkim 1911193267SjkimFixed several possible warnings related to the use of the configurable 1912193267SjkimACPI_THREAD_ID. This type can now be configured as either an integer or a 1913193267Sjkimpointer with no warnings. Also fixes several warnings in printf-like 1914193267Sjkimstatements for the 64-bit build when the type is configured as a pointer. 1915193267SjkimACPICA BZ 766, 767. 1916193267Sjkim 1917193267SjkimFixed a number of possible warnings when compiling with gcc 4+ (depending on 1918193267Sjkimwarning options.) Examples include printf formats, aliasing, unused globals, 1919193267Sjkimmissing prototypes, missing switch default statements, use of non-ANSI 1920220663Sjkimlibrary functions, use of non-ANSI constructs. See generate/unix/Makefile for 1921193267Sjkima list of warning options used with gcc 3 and 4. ACPICA BZ 735. 1922193267Sjkim 1923193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1924193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1925220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 1926193267Sjkimmuch larger code and data size. 1927193267Sjkim 1928193267Sjkim Previous Release: 1929193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1930193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1931193267Sjkim Current Release: 1932193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1933193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1934193267Sjkim 1935193267Sjkim2) iASL Compiler/Disassembler and Tools: 1936193267Sjkim 1937220663SjkimiASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on 1938193267Sjkimthe 64-bit build. 1939193267Sjkim 1940220663SjkimiASL: Fixed a problem where the Unix/Linux versions of the compiler could not 1941193267Sjkimcorrectly digest Windows/DOS formatted files (with CR/LF). 1942193267Sjkim 1943193267SjkimiASL: Added a new option for "quiet mode" (-va) that produces only the 1944193267Sjkimcompilation summary, not individual errors and warnings. Useful for large 1945193267Sjkimbatch compilations. 1946193267Sjkim 1947193267SjkimAcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex 1948193267Sjkimtimeout that can be used to detect hang conditions during execution of AML 1949193267Sjkimcode (includes both internal semaphores and AML-defined mutexes and events.) 1950193267Sjkim 1951193267SjkimAdded new makefiles for the generation of acpica in a generic unix-like 1952193267Sjkimenvironment. These makefiles are intended to generate the acpica tools and 1953193267Sjkimutilities from the original acpica git source tree structure. 1954193267Sjkim 1955193267SjkimTest Suites: Updated and cleaned up the documentation files. Updated the 1956193267Sjkimcopyrights to 2009, affecting all source files. Use the new version of iASL 1957193267Sjkimwith quiet mode. Increased the number of available semaphores in the Windows 1958193267SjkimOSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added 1959193267Sjkiman alternate implementation of the semaphore timeout to allow aslts to 1960193267Sjkimexecute fully on Cygwin. 1961193267Sjkim 1962193267Sjkim---------------------------------------- 1963193267Sjkim20 March 2009. Summary of changes for version 20090320: 1964193267Sjkim 1965193267Sjkim1) ACPI CA Core Subsystem: 1966193267Sjkim 1967193267SjkimFixed a possible race condition between AcpiWalkNamespace and dynamic table 1968220663Sjkimunloads. Added a reader/writer locking mechanism to allow multiple concurrent 1969220663Sjkimnamespace walks (readers), but block a dynamic table unload until it can gain 1970193267Sjkimexclusive write access to the namespace. This fixes a problem where a table 1971193267Sjkimunload could (possibly catastrophically) delete the portion of the namespace 1972193267Sjkimthat is currently being examined by a walk. Adds a new file, utlock.c, that 1973193267Sjkimimplements the reader/writer lock mechanism. ACPICA BZ 749. 1974193267Sjkim 1975193267SjkimFixed a regression introduced in version 20090220 where a change to the FADT 1976193267Sjkimhandling could cause the ACPICA subsystem to access non-existent I/O ports. 1977193267Sjkim 1978193267SjkimModified the handling of FADT register and table (FACS/DSDT) addresses. The 1979193267SjkimFADT can contain both 32-bit and 64-bit versions of these addresses. 1980193267SjkimPreviously, the 64-bit versions were favored, meaning that if both 32 and 64 1981193267Sjkimversions were valid, but not equal, the 64-bit version was used. This was 1982193267Sjkimfound to cause some machines to fail. Now, in this case, the 32-bit version 1983193267Sjkimis used instead. This now matches the Windows behavior. 1984193267Sjkim 1985193267SjkimImplemented a new mechanism to protect certain I/O ports. Provides Microsoft 1986193267Sjkimcompatibility and protects the standard PC I/O ports from access via AML 1987193267Sjkimcode. Adds a new file, hwvalid.c 1988193267Sjkim 1989193267SjkimFixed a possible extraneous warning message from the FADT support. The 1990193267Sjkimmessage warns of a 32/64 length mismatch between the legacy and GAS 1991193267Sjkimdefinitions for a register. 1992193267Sjkim 1993193267SjkimRemoved the obsolete AcpiOsValidateAddress OSL interface. This interface is 1994193267Sjkimmade obsolete by the port protection mechanism above. It was previously used 1995193267Sjkimto validate the entire address range of an operation region, which could be 1996193267Sjkimincorrect if the range included illegal ports, but fields within the 1997193267Sjkimoperation region did not actually access those ports. Validation is now 1998193267Sjkimperformed on a per-field basis instead of the entire region. 1999193267Sjkim 2000193267SjkimModified the handling of the PM1 Status Register ignored bit (bit 11.) 2001193267SjkimIgnored bits must be "preserved" according to the ACPI spec. Usually, this 2002193267Sjkimmeans a read/modify/write when writing to the register. However, for status 2003220663Sjkimregisters, writing a one means clear the event. Writing a zero means preserve 2004193267Sjkimthe event (do not clear.) This behavior is clarified in the ACPI 4.0 spec, 2005193267Sjkimand the ACPICA code now simply always writes a zero to the ignored bit. 2006193267Sjkim 2007193267SjkimModified the handling of ignored bits for the PM1 A/B Control Registers. As 2008193267Sjkimper the ACPI specification, for the control registers, preserve 2009193267Sjkim(read/modify/write) all bits that are defined as either reserved or ignored. 2010193267Sjkim 2011193267SjkimUpdated the handling of write-only bits in the PM1 A/B Control Registers. 2012193267SjkimWhen reading the register, zero the write-only bits as per the ACPI spec. 2013193267SjkimACPICA BZ 443. Lin Ming. 2014193267Sjkim 2015193267SjkimRemoved "Linux" from the list of supported _OSI strings. Linux no longer 2016193267Sjkimwants to reply true to this request. The Windows strings are the only paths 2017193267Sjkimthrough the AML that are tested and known to work properly. 2018193267Sjkim 2019193267Sjkim Previous Release: 2020193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 2021193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 2022193267Sjkim Current Release: 2023193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 2024193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 2025193267Sjkim 2026193267Sjkim2) iASL Compiler/Disassembler and Tools: 2027193267Sjkim 2028193267SjkimAcpiexec: Split the large aeexec.c file into two new files, aehandlers.c and 2029193267Sjkimaetables.c 2030193267Sjkim 2031193267Sjkim---------------------------------------- 2032193267Sjkim20 February 2009. Summary of changes for version 20090220: 2033193267Sjkim 2034193267Sjkim1) ACPI CA Core Subsystem: 2035193267Sjkim 2036193267SjkimOptimized the ACPI register locking. Removed locking for reads from the ACPI 2037193267Sjkimbit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is 2038193267Sjkimnot required when reading the single-bit registers. The 2039193267SjkimAcpiGetRegisterUnlocked function is no longer needed and has been removed. 2040193267SjkimThis will improve performance for reads on these registers. ACPICA BZ 760. 2041193267Sjkim 2042193267SjkimFixed the parameter validation for AcpiRead/Write. Now return 2043220663SjkimAE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if 2044193267Sjkimthe register has an address of zero. Previously, these cases simply returned 2045193267SjkimAE_OK. For optional registers such as PM1B status/enable/control, the caller 2046193267Sjkimshould check for a valid register address before calling. ACPICA BZ 748. 2047193267Sjkim 2048193267SjkimRenamed the external ACPI bit register access functions. Renamed 2049193267SjkimAcpiGetRegister and AcpiSetRegister to clarify the purpose of these 2050193267Sjkimfunctions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister. 2051193267SjkimAlso, restructured the code for these functions by simplifying the code path 2052193267Sjkimand condensing duplicate code to reduce code size. 2053193267Sjkim 2054193267SjkimAdded new functions to transparently handle the possibly split PM1 A/B 2055193267Sjkimregisters. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions 2056220663Sjkimnow handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ 2057193267Sjkim746. 2058193267Sjkim 2059193267SjkimAdded a function to handle the PM1 control registers, AcpiHwWritePm1Control. 2060220663SjkimThis function writes both of the PM1 control registers (A/B). These registers 2061193267Sjkimare different than the PM1 A/B status and enable registers in that different 2062193267Sjkimvalues can be written to the A/B registers. Most notably, the SLP_TYP bits 2063220663Sjkimcan be different, as per the values returned from the _Sx predefined methods. 2064193267Sjkim 2065193267SjkimRemoved an extra register write within AcpiHwClearAcpiStatus. This function 2066193267Sjkimwas writing an optional PM1B status register twice. The existing call to the 2067193267Sjkimlow-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B 2068193267Sjkimregister. ACPICA BZ 751. 2069193267Sjkim 2070220663SjkimSplit out the PM1 Status registers from the FADT. Added new globals for these 2071193267Sjkimregisters (A/B), similar to the way the PM1 Enable registers are handled. 2072193267SjkimInstead of overloading the FADT Event Register blocks. This makes the code 2073193267Sjkimclearer and less prone to error. 2074193267Sjkim 2075220663SjkimFixed the warning message for when the platform contains too many ACPI tables 2076220663Sjkimfor the default size of the global root table data structure. The calculation 2077193267Sjkimfor the truncation value was incorrect. 2078193267Sjkim 2079193267SjkimRemoved the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this 2080193267Sjkimobsolete macro, since it is now a simple reference to ->common.type. There 2081193267Sjkimwere about 150 invocations of the macro across 41 files. ACPICA BZ 755. 2082193267Sjkim 2083193267SjkimRemoved the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as 2084193267SjkimTYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to 2085193267Sjkimsimply SLEEP_TYPE. ACPICA BZ 754. 2086193267Sjkim 2087193267SjkimConditionally compile the AcpiSetFirmwareWakingVector64 function. This 2088193267Sjkimfunction is only needed on 64-bit host operating systems and is thus not 2089193267Sjkimincluded for 32-bit hosts. 2090193267Sjkim 2091220663SjkimDebug output: print the input and result for invocations of the _OSI reserved 2092193267Sjkimcontrol method via the ACPI_LV_INFO debug level. Also, reduced some of the 2093193267Sjkimverbosity of this debug level. Len Brown. 2094193267Sjkim 2095193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2096193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2097220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2098193267Sjkimmuch larger code and data size. 2099193267Sjkim 2100193267Sjkim Previous Release: 2101193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 2102193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 2103193267Sjkim Current Release: 2104193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 2105193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 2106193267Sjkim 2107193267Sjkim2) iASL Compiler/Disassembler and Tools: 2108193267Sjkim 2109193267SjkimDisassembler: Decode the FADT PM_Profile field. Emit ascii names for the 2110193267Sjkimvarious legal performance profiles. 2111193267Sjkim 2112193267Sjkim---------------------------------------- 2113193267Sjkim23 January 2009. Summary of changes for version 20090123: 2114193267Sjkim 2115193267Sjkim1) ACPI CA Core Subsystem: 2116193267Sjkim 2117193267SjkimAdded the 2009 copyright to all module headers and signons. This affects 2118193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2119193267Sjkimthe tools/utilities. 2120193267Sjkim 2121193267SjkimImplemented a change to allow the host to override any ACPI table, including 2122220663Sjkimdynamically loaded tables. Previously, only the DSDT could be replaced by the 2123193267Sjkimhost. With this change, the AcpiOsTableOverride interface is called for each 2124193267Sjkimtable found in the RSDT/XSDT during ACPICA initialization, and also whenever 2125193267Sjkima table is dynamically loaded via the AML Load operator. 2126193267Sjkim 2127193267SjkimUpdated FADT flag definitions, especially the Boot Architecture flags. 2128193267Sjkim 2129193267SjkimDebugger: For the Find command, automatically pad the input ACPI name with 2130193267Sjkimunderscores if the name is shorter than 4 characters. This enables a match 2131193267Sjkimwith the actual namespace entry which is itself padded with underscores. 2132193267Sjkim 2133193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2134193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2135220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2136193267Sjkimmuch larger code and data size. 2137193267Sjkim 2138193267Sjkim Previous Release: 2139193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 2140193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 2141193267Sjkim Current Release: 2142193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 2143193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 2144193267Sjkim 2145193267Sjkim2) iASL Compiler/Disassembler and Tools: 2146193267Sjkim 2147193267SjkimFix build error under Bison-2.4. 2148193267Sjkim 2149193267SjkimDissasembler: Enhanced FADT support. Added decoding of the Boot Architecture 2150193267Sjkimflags. Now decode all flags, regardless of the FADT version. Flag output 2151193267Sjkimincludes the FADT version which first defined each flag. 2152193267Sjkim 2153193267SjkimThe iASL -g option now dumps the RSDT to a file (in addition to the FADT and 2154193267SjkimDSDT). Windows only. 2155193267Sjkim 2156193267Sjkim---------------------------------------- 2157193267Sjkim04 December 2008. Summary of changes for version 20081204: 2158193267Sjkim 2159193267Sjkim1) ACPI CA Core Subsystem: 2160193267Sjkim 2161193267SjkimThe ACPICA Programmer Reference has been completely updated and revamped for 2162193267Sjkimthis release. This includes updates to the external interfaces, OSL 2163193267Sjkiminterfaces, the overview sections, and the debugger reference. 2164193267Sjkim 2165193267SjkimSeveral new ACPICA interfaces have been implemented and documented in the 2166193267Sjkimprogrammer reference: 2167193267SjkimAcpiReset - Writes the reset value to the FADT-defined reset register. 2168193267SjkimAcpiDisableAllGpes - Disable all available GPEs. 2169193267SjkimAcpiEnableAllRuntimeGpes - Enable all available runtime GPEs. 2170193267SjkimAcpiGetGpeDevice - Get the GPE block device associated with a GPE. 2171193267SjkimAcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs. 2172193267SjkimAcpiRead - Low-level read ACPI register (was HwLowLevelRead.) 2173193267SjkimAcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.) 2174193267Sjkim 2175193267SjkimMost of the public ACPI hardware-related interfaces have been moved to a new 2176193267Sjkimfile, components/hardware/hwxface.c 2177193267Sjkim 2178193267SjkimEnhanced the FADT parsing and low-level ACPI register access: The ACPI 2179193267Sjkimregister lengths within the FADT are now used, and the low level ACPI 2180193267Sjkimregister access no longer hardcodes the ACPI register lengths. Given that 2181220663Sjkimthere may be some risk in actually trusting the FADT register lengths, a run- 2182193267Sjkimtime option was added to fall back to the default hardcoded lengths if the 2183193267SjkimFADT proves to contain incorrect values - UseDefaultRegisterWidths. This 2184193267Sjkimoption is set to true for now, and a warning is issued if a suspicious FADT 2185193267Sjkimregister length is overridden with the default value. 2186193267Sjkim 2187193267SjkimFixed a reference count issue in NsRepairObject. This problem was introduced 2188193267Sjkimin version 20081031 as part of a fix to repair Buffer objects within 2189193267SjkimPackages. Lin Ming. 2190193267Sjkim 2191193267SjkimAdded semaphore support to the Linux/Unix application OS-services layer 2192193267Sjkim(OSL). ACPICA BZ 448. Lin Ming. 2193193267Sjkim 2194220663SjkimAdded the ACPI_MUTEX_TYPE configuration option to select whether mutexes will 2195193267Sjkimbe implemented in the OSL, or will binary semaphores be used instead. 2196193267Sjkim 2197193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2198193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2199220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2200193267Sjkimmuch larger code and data size. 2201193267Sjkim 2202193267Sjkim Previous Release: 2203193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 2204193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 2205193267Sjkim Current Release: 2206193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 2207193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 2208193267Sjkim 2209193267Sjkim2) iASL Compiler/Disassembler and Tools: 2210193267Sjkim 2211220663SjkimiASL: Completed the '-e' option to include additional ACPI tables in order to 2212193267Sjkimaid with disassembly and External statement generation. ACPICA BZ 742. Lin 2213193267SjkimMing. 2214193267Sjkim 2215193267SjkimiASL: Removed the "named object in while loop" error. The compiler cannot 2216193267Sjkimdetermine how many times a loop will execute. ACPICA BZ 730. 2217193267Sjkim 2218193267SjkimDisassembler: Implemented support for FADT revision 2 (MS extension). ACPICA 2219193267SjkimBZ 743. 2220193267Sjkim 2221193267SjkimDisassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG). 2222193267Sjkim 2223193267Sjkim---------------------------------------- 2224193267Sjkim31 October 2008. Summary of changes for version 20081031: 2225193267Sjkim 2226193267Sjkim1) ACPI CA Core Subsystem: 2227193267Sjkim 2228220663SjkimRestructured the ACPICA header files into public/private. acpi.h now includes 2229193267Sjkimonly the "public" acpica headers. All other acpica headers are "private" and 2230193267Sjkimshould not be included by acpica users. One new file, accommon.h is used to 2231193267Sjkiminclude the commonly used private headers for acpica code generation. Future 2232193267Sjkimplans include moving all private headers to a new subdirectory. 2233193267Sjkim 2234193267SjkimImplemented an automatic Buffer->String return value conversion for 2235193267Sjkimpredefined ACPI methods. For these methods (such as _BIF), added automatic 2236193267Sjkimconversion for return objects that are required to be a String, but a Buffer 2237193267Sjkimwas found instead. This can happen when reading string battery data from an 2238193267Sjkimoperation region, because it used to be difficult to convert the data from 2239193267Sjkimbuffer to string from within the ASL. Ensures that the host OS is provided 2240193267Sjkimwith a valid null-terminated string. Linux BZ 11822. 2241193267Sjkim 2242193267SjkimUpdated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector 2243193267Sjkiminto two: one for the 32-bit vector, another for the 64-bit vector. This is 2244193267Sjkimrequired because the host OS must setup the wake much differently for each 2245220663Sjkimvector (real vs. protected mode, etc.) and the interface itself should not be 2246193267Sjkimdeciding which vector to use. Also, eliminated the GetFirmwareWakingVector 2247193267Sjkiminterface, as it served no purpose (only the firmware reads the vector, OS 2248193267Sjkimonly writes the vector.) ACPICA BZ 731. 2249193267Sjkim 2250193267SjkimImplemented a mechanism to escape infinite AML While() loops. Added a loop 2251193267Sjkimcounter to force exit from AML While loops if the count becomes too large. 2252193267SjkimThis can occur in poorly written AML when the hardware does not respond 2253193267Sjkimwithin a while loop and the loop does not implement a timeout. The maximum 2254193267Sjkimloop count is configurable. A new exception code is returned when a loop is 2255193267Sjkimbroken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore. 2256193267Sjkim 2257193267SjkimOptimized the execution of AML While loops. Previously, a control state 2258193267Sjkimobject was allocated and freed for each execution of the loop. The 2259193267Sjkimoptimization is to simply reuse the control state for each iteration. This 2260193267Sjkimspeeds up the raw loop execution time by about 5%. 2261193267Sjkim 2262193267SjkimEnhanced the implicit return mechanism. For Windows compatibility, return an 2263193267Sjkimimplicit integer of value zero for methods that contain no executable code. 2264193267SjkimSuch methods are seen in the field as stubs (presumably), and can cause 2265193267Sjkimdrivers to fail if they expect a return value. Lin Ming. 2266193267Sjkim 2267193267SjkimAllow multiple backslashes as root prefixes in namepaths. In a fully 2268193267Sjkimqualified namepath, allow multiple backslash prefixes. This can happen (and 2269193267Sjkimis seen in the field) because of the use of a double-backslash in strings 2270193267Sjkim(since backslash is the escape character) causing confusion. ACPICA BZ 739 2271193267SjkimLin Ming. 2272193267Sjkim 2273193267SjkimEmit a warning if two different FACS or DSDT tables are discovered in the 2274193267SjkimFADT. Checks if there are two valid but different addresses for the FACS and 2275193267SjkimDSDT within the FADT (mismatch between the 32-bit and 64-bit fields.) 2276193267Sjkim 2277193267SjkimConsolidated the method argument count validation code. Merged the code that 2278193267Sjkimvalidates control method argument counts into the predefined validation 2279193267Sjkimmodule. Eliminates possible multiple warnings for incorrect argument counts. 2280193267Sjkim 2281193267SjkimImplemented ACPICA example code. Includes code for ACPICA initialization, 2282193267Sjkimhandler installation, and calling a control method. Available at 2283193267Sjkimsource/tools/examples. 2284193267Sjkim 2285193267SjkimAdded a global pointer for FACS table to simplify internal FACS access. Use 2286220663Sjkimthe global pointer instead of using AcpiGetTableByIndex for each FACS access. 2287193267SjkimThis simplifies the code for the Global Lock and the Firmware Waking 2288193267SjkimVector(s). 2289193267Sjkim 2290193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2291193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2292220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2293193267Sjkimmuch larger code and data size. 2294193267Sjkim 2295193267Sjkim Previous Release: 2296193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 2297193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 2298193267Sjkim Current Release: 2299193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 2300193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 2301193267Sjkim 2302193267Sjkim2) iASL Compiler/Disassembler and Tools: 2303193267Sjkim 2304193267SjkimiASL: Improved disassembly of external method calls. Added the -e option to 2305220663Sjkimallow the inclusion of additional ACPI tables to help with the disassembly of 2306193267Sjkimmethod invocations and the generation of external declarations during the 2307193267Sjkimdisassembly. Certain external method invocations cannot be disassembled 2308193267Sjkimproperly without the actual declaration of the method. Use the -e option to 2309193267Sjkiminclude the table where the external method(s) are actually declared. Most 2310193267Sjkimuseful for disassembling SSDTs that make method calls back to the master 2311193267SjkimDSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d 2312193267Sjkim-e dsdt.aml ssdt1.aml 2313193267Sjkim 2314193267SjkimiASL: Fix to allow references to aliases within ASL namepaths. Fixes a 2315193267Sjkimproblem where the use of an alias within a namepath would result in a not 2316193267Sjkimfound error or cause the compiler to fault. Also now allows forward 2317193267Sjkimreferences from the Alias operator itself. ACPICA BZ 738. 2318193267Sjkim 2319193267Sjkim---------------------------------------- 2320193267Sjkim26 September 2008. Summary of changes for version 20080926: 2321193267Sjkim 2322193267Sjkim1) ACPI CA Core Subsystem: 2323193267Sjkim 2324193267SjkimDesigned and implemented a mechanism to validate predefined ACPI methods and 2325220663Sjkimobjects. This code validates the predefined ACPI objects (objects whose names 2326193267Sjkimstart with underscore) that appear in the namespace, at the time they are 2327193267Sjkimevaluated. The argument count and the type of the returned object are 2328193267Sjkimvalidated against the ACPI specification. The purpose of this validation is 2329193267Sjkimto detect problems with the BIOS-implemented predefined ACPI objects before 2330220663Sjkimthe results are returned to the ACPI-related drivers. Future enhancements may 2331193267Sjkiminclude actual repair of incorrect return objects where possible. Two new 2332193267Sjkimfiles are nspredef.c and acpredef.h. 2333193267Sjkim 2334193267SjkimFixed a fault in the AML parser if a memory allocation fails during the Op 2335193267Sjkimcompletion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492. 2336193267Sjkim 2337193267SjkimFixed an issue with implicit return compatibility. This change improves the 2338193267Sjkimimplicit return mechanism to be more compatible with the MS interpreter. Lin 2339193267SjkimMing, ACPICA BZ 349. 2340193267Sjkim 2341193267SjkimImplemented support for zero-length buffer-to-string conversions. Allow zero 2342193267Sjkimlength strings during interpreter buffer-to-string conversions. For example, 2343193267Sjkimduring the ToDecimalString and ToHexString operators, as well as implicit 2344193267Sjkimconversions. Fiodor Suietov, ACPICA BZ 585. 2345193267Sjkim 2346193267SjkimFixed two possible memory leaks in the error exit paths of 2347193267SjkimAcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are 2348193267Sjkimsimilar in that they use a stack of state objects in order to eliminate 2349193267Sjkimrecursion. The stack must be fully unwound and deallocated if an error 2350193267Sjkimoccurs. Lin Ming. ACPICA BZ 383. 2351193267Sjkim 2352220663SjkimRemoved the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global 2353193267SjkimACPI register table. This bit does not exist and is unused. Lin Ming, Bob 2354193267SjkimMoore ACPICA BZ 442. 2355193267Sjkim 2356193267SjkimRemoved the obsolete version number in module headers. Removed the 2357193267Sjkim"$Revision" number that appeared in each module header. This version number 2358193267Sjkimwas useful under SourceSafe and CVS, but has no meaning under git. It is not 2359193267Sjkimonly incorrect, it could also be misleading. 2360193267Sjkim 2361193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2362193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2363220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2364193267Sjkimmuch larger code and data size. 2365193267Sjkim 2366193267Sjkim Previous Release: 2367193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 2368193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 2369193267Sjkim Current Release: 2370193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 2371193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 2372193267Sjkim 2373193267Sjkim---------------------------------------- 2374193267Sjkim29 August 2008. Summary of changes for version 20080829: 2375193267Sjkim 2376193267Sjkim1) ACPI CA Core Subsystem: 2377193267Sjkim 2378193267SjkimCompleted a major cleanup of the internal ACPI_OPERAND_OBJECT of type 2379193267SjkimReference. Changes include the elimination of cheating on the Object field 2380193267Sjkimfor the DdbHandle subtype, addition of a reference class field to 2381220663Sjkimdifferentiate the various reference types (instead of an AML opcode), and the 2382193267Sjkimcleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723 2383193267Sjkim 2384193267SjkimReduce an error to a warning for an incorrect method argument count. 2385193267SjkimPreviously aborted with an error if too few arguments were passed to a 2386220663Sjkimcontrol method via the external ACPICA interface. Now issue a warning instead 2387193267Sjkimand continue. Handles the case where the method inadvertently declares too 2388193267Sjkimmany arguments, but does not actually use the extra ones. Applies mainly to 2389193267Sjkimthe predefined methods. Lin Ming. Linux BZ 11032. 2390193267Sjkim 2391220663SjkimDisallow the evaluation of named object types with no intrinsic value. Return 2392220663SjkimAE_TYPE for objects that have no value and therefore evaluation is undefined: 2393193267SjkimDevice, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of 2394193267Sjkimthese types were allowed, but an exception would be generated at some point 2395193267Sjkimduring the evaluation. Now, the error is generated up front. 2396193267Sjkim 2397193267SjkimFixed a possible memory leak in the AcpiNsGetExternalPathname function 2398193267Sjkim(nsnames.c). Fixes a leak in the error exit path. 2399193267Sjkim 2400220663SjkimRemoved the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug 2401220663Sjkimlevels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION 2402193267Sjkiminterfaces. Also added ACPI_DB_EVENTS to correspond with the existing 2403193267SjkimACPI_LV_EVENTS. 2404193267Sjkim 2405193267SjkimRemoved obsolete and/or unused exception codes from the acexcep.h header. 2406193267SjkimThere is the possibility that certain device drivers may be affected if they 2407193267Sjkimuse any of these exceptions. 2408193267Sjkim 2409193267SjkimThe ACPICA documentation has been added to the public git source tree, under 2410193267Sjkimacpica/documents. Included are the ACPICA programmer reference, the iASL 2411193267Sjkimcompiler reference, and the changes.txt release logfile. 2412193267Sjkim 2413193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2414193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2415220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2416193267Sjkimmuch larger code and data size. 2417193267Sjkim 2418193267Sjkim Previous Release: 2419193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 2420193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 2421193267Sjkim Current Release: 2422193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 2423193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 2424193267Sjkim 2425193267Sjkim2) iASL Compiler/Disassembler and Tools: 2426193267Sjkim 2427193267SjkimAllow multiple argument counts for the predefined _SCP method. ACPI 3.0 2428193267Sjkimdefines _SCP with 3 arguments. Previous versions defined it with only 1 2429193267Sjkimargument. iASL now allows both definitions. 2430193267Sjkim 2431193267SjkimiASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero- 2432193267Sjkimlength subtables when disassembling ACPI tables. Also fixed a couple of 2433193267Sjkimerrors where a full 16-bit table type field was not extracted from the input 2434193267Sjkimproperly. 2435193267Sjkim 2436193267Sjkimacpisrc: Improve comment counting mechanism for generating source code 2437193267Sjkimstatistics. Count first and last lines of multi-line comments as whitespace, 2438193267Sjkimnot comment lines. Handle Linux legal header in addition to standard acpica 2439193267Sjkimheader. 2440193267Sjkim 2441193267Sjkim---------------------------------------- 2442193267Sjkim 2443193267Sjkim29 July 2008. Summary of changes for version 20080729: 2444193267Sjkim 2445193267Sjkim1) ACPI CA Core Subsystem: 2446193267Sjkim 2447193267SjkimFix a possible deadlock in the GPE dispatch. Remove call to 2448220663SjkimAcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt 2449193267Sjkimto acquire the GPE lock but can deadlock since the GPE lock is already held 2450193267Sjkimat dispatch time. This code was introduced in version 20060831 as a response 2451193267Sjkimto Linux BZ 6881 and has since been removed from Linux. 2452193267Sjkim 2453220663SjkimAdd a function to dereference returned reference objects. Examines the return 2454193267Sjkimobject from a call to AcpiEvaluateObject. Any Index or RefOf references are 2455193267Sjkimautomatically dereferenced in an attempt to return something useful (these 2456193267Sjkimreference types cannot be converted into an external ACPI_OBJECT.) Provides 2457193267SjkimMS compatibility. Lin Ming, Bob Moore. Linux BZ 11105 2458193267Sjkim 2459193267Sjkimx2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new 2460193267Sjkimsubtables for the MADT and one new subtable for the SRAT. Includes 2461193267Sjkimdisassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC 2462193267SjkimSpecification, June 2008. 2463193267Sjkim 2464193267SjkimAdditional error checking for pathname utilities. Add error check after all 2465193267Sjkimcalls to AcpiNsGetPathnameLength. Add status return from 2466193267SjkimAcpiNsBuildExternalPath and check after all calls. Add parameter validation 2467193267Sjkimto AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar. 2468193267Sjkim 2469193267SjkimReturn status from the global init function AcpiUtGlobalInitialize. This is 2470193267Sjkimused by both the kernel subsystem and the utilities such as iASL compiler. 2471193267SjkimThe function could possibly fail when the caches are initialized. Yang Yi. 2472193267Sjkim 2473193267SjkimAdd a function to decode reference object types to strings. Created for 2474193267Sjkimimproved error messages. 2475193267Sjkim 2476220663SjkimImprove object conversion error messages. Better error messages during object 2477220663Sjkimconversion from internal to the external ACPI_OBJECT. Used for external calls 2478193267Sjkimto AcpiEvaluateObject. 2479193267Sjkim 2480193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2481193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2482220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2483193267Sjkimmuch larger code and data size. 2484193267Sjkim 2485193267Sjkim Previous Release: 2486193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 2487193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 2488193267Sjkim Current Release: 2489193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 2490193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 2491193267Sjkim 2492193267Sjkim2) iASL Compiler/Disassembler and Tools: 2493193267Sjkim 2494193267SjkimDebugger: fix a possible hang when evaluating non-methods. Fixes a problem 2495193267Sjkimintroduced in version 20080701. If the object being evaluated (via execute 2496193267Sjkimcommand) is not a method, the debugger can hang while trying to obtain non- 2497193267Sjkimexistent parameters. 2498193267Sjkim 2499193267SjkimiASL: relax error for using reserved "_T_x" identifiers. These names can 2500193267Sjkimappear in a disassembled ASL file if they were emitted by the original 2501193267Sjkimcompiler. Instead of issuing an error or warning and forcing the user to 2502193267Sjkimmanually change these names, issue a remark instead. 2503193267Sjkim 2504220663SjkimiASL: error if named object created in while loop. Emit an error if any named 2505193267Sjkimobject is created within a While loop. If allowed, this code will generate a 2506220663Sjkimrun-time error on the second iteration of the loop when an attempt is made to 2507193267Sjkimcreate the same named object twice. ACPICA bugzilla 730. 2508193267Sjkim 2509193267SjkimiASL: Support absolute pathnames for include files. Add support for absolute 2510193267Sjkimpathnames within the Include operator. previously, only relative pathnames 2511193267Sjkimwere supported. 2512193267Sjkim 2513220663SjkimiASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor. 2514193267SjkimThe ACPI spec requires one interrupt minimum. BZ 423 2515193267Sjkim 2516193267SjkimiASL: Handle a missing ResourceSource arg, with a present SourceIndex. 2517193267SjkimHandles the case for the Interrupt Resource Descriptor where 2518193267Sjkimthe ResourceSource argument is omitted but ResourceSourceIndex 2519193267Sjkimis present. Now leave room for the Index. BZ 426 2520193267Sjkim 2521193267SjkimiASL: Prevent error message if CondRefOf target does not exist. Fixes cases 2522193267Sjkimwhere an error message is emitted if the target does not exist. BZ 516 2523193267Sjkim 2524193267SjkimiASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option 2525220663Sjkim(get ACPI tables on Windows). This was apparently broken in version 20070919. 2526193267Sjkim 2527220663SjkimAcpiXtract: Handle EOF while extracting data. Correctly handle the case where 2528193267Sjkimthe EOF happens immediately after the last table in the input file. Print 2529193267Sjkimcompletion message. Previously, no message was displayed in this case. 2530193267Sjkim 2531193267Sjkim---------------------------------------- 2532193267Sjkim01 July 2008. Summary of changes for version 20080701: 2533193267Sjkim 2534193267Sjkim0) Git source tree / acpica.org 2535193267Sjkim 2536193267SjkimFixed a problem where a git-clone from http would not transfer the entire 2537193267Sjkimsource tree. 2538193267Sjkim 2539193267Sjkim1) ACPI CA Core Subsystem: 2540193267Sjkim 2541193267SjkimImplemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one 2542193267Sjkimenable bit. Now performs a read-change-write of the enable register instead 2543193267Sjkimof simply writing out the cached enable mask. This will prevent inadvertent 2544220663Sjkimenabling of GPEs if a rogue GPE is received during initialization (before GPE 2545193267Sjkimhandlers are installed.) 2546193267Sjkim 2547193267SjkimImplemented a copy for dynamically loaded tables. Previously, dynamically 2548193267Sjkimloaded tables were simply mapped - but on some machines this memory is 2549193267Sjkimcorrupted after suspend. Now copy the table to a local buffer. For the 2550193267SjkimOpRegion case, added checksum verify. Use the table length from the table 2551193267Sjkimheader, not the region length. For the Buffer case, use the table length 2552193267Sjkimalso. Dennis Noordsij, Bob Moore. BZ 10734 2553193267Sjkim 2554220663SjkimFixed a problem where the same ACPI table could not be dynamically loaded and 2555193267Sjkimunloaded more than once. Without this change, a table cannot be loaded again 2556193267Sjkimonce it has been loaded/unloaded one time. The current mechanism does not 2557220663Sjkimunregister a table upon an unload. During a load, if the same table is found, 2558193267Sjkimthis no longer returns an exception. BZ 722 2559193267Sjkim 2560193267SjkimFixed a problem where the wrong descriptor length was calculated for the 2561193267SjkimEndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag 2562193267Sjkimare calculated as 12 bytes long, but the actual length in the internal 2563193267Sjkimdescriptor is 16 because of the round-up to 8 on the 64-bit build. Reported 2564193267Sjkimby Linn Crosetto. BZ 728 2565193267Sjkim 2566193267SjkimFixed a possible memory leak in the Unload operator. The DdbHandle returned 2567220663Sjkimby Load() did not have its reference count decremented during unload, leading 2568193267Sjkimto a memory leak. Lin Ming. BZ 727 2569193267Sjkim 2570193267SjkimFixed a possible memory leak when deleting thermal/processor objects. Any 2571193267Sjkimassociated notify handlers (and objects) were not being deleted. Fiodor 2572193267SjkimSuietov. BZ 506 2573193267Sjkim 2574193267SjkimFixed the ordering of the ASCII names in the global mutex table to match the 2575220663Sjkimactual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only. 2576193267SjkimVegard Nossum. BZ 726 2577193267Sjkim 2578193267SjkimEnhanced the AcpiGetObjectInfo interface to return the number of required 2579193267Sjkimarguments if the object is a control method. Added this call to the debugger 2580193267Sjkimso the proper number of default arguments are passed to a method. This 2581193267Sjkimprevents a warning when executing methods from AcpiExec. 2582193267Sjkim 2583193267SjkimAdded a check for an invalid handle in AcpiGetObjectInfo. Return 2584193267SjkimAE_BAD_PARAMETER if input handle is invalid. BZ 474 2585193267Sjkim 2586193267SjkimFixed an extraneous warning from exconfig.c on the 64-bit build. 2587193267Sjkim 2588193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2589193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2590220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2591193267Sjkimmuch larger code and data size. 2592193267Sjkim 2593193267Sjkim Previous Release: 2594193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 2595193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 2596193267Sjkim Current Release: 2597193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 2598193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 2599193267Sjkim 2600193267Sjkim2) iASL Compiler/Disassembler and Tools: 2601193267Sjkim 2602193267SjkimiASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both 2603193267Sjkimresource descriptor names. 2604193267Sjkim 2605220663SjkimiASL: Detect invalid ASCII characters in input (windows version). Removed the 2606193267Sjkim"-CF" flag from the flex compile, enables correct detection of non-ASCII 2607193267Sjkimcharacters in the input. BZ 441 2608193267Sjkim 2609193267SjkimiASL: Eliminate warning when result of LoadTable is not used. Eliminate the 2610193267Sjkim"result of operation not used" warning when the DDB handle returned from 2611193267SjkimLoadTable is not used. The warning is not needed. BZ 590 2612193267Sjkim 2613220663SjkimAcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to 2614220663Sjkimpass address of table to the AML. Added option to disable OpRegion simulation 2615220663Sjkimto allow creation of an OpRegion with a real address that was passed to _CFG. 2616193267SjkimAll of this allows testing of the Load and Unload operators from AcpiExec. 2617193267Sjkim 2618193267SjkimDebugger: update tables command for unloaded tables. Handle unloaded tables 2619193267Sjkimand use the standard table header output routine. 2620193267Sjkim 2621193267Sjkim---------------------------------------- 2622193267Sjkim09 June 2008. Summary of changes for version 20080609: 2623193267Sjkim 2624193267Sjkim1) ACPI CA Core Subsystem: 2625193267Sjkim 2626193267SjkimImplemented a workaround for reversed _PRT entries. A significant number of 2627193267SjkimBIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This 2628193267Sjkimchange dynamically detects and repairs this problem. Provides compatibility 2629193267Sjkimwith MS ACPI. BZ 6859 2630193267Sjkim 2631193267SjkimSimplified the internal ACPI hardware interfaces to eliminate the locking 2632193267Sjkimflag parameter from Register Read/Write. Added a new external interface, 2633193267SjkimAcpiGetRegisterUnlocked. 2634193267Sjkim 2635220663SjkimFixed a problem where the invocation of a GPE control method could hang. This 2636193267Sjkimwas a regression introduced in 20080514. The new method argument count 2637193267Sjkimvalidation mechanism can enter an infinite loop when a GPE method is 2638220663Sjkimdispatched. Problem fixed by removing the obsolete code that passed GPE block 2639193267Sjkiminformation to the notify handler via the control method parameter pointer. 2640193267Sjkim 2641193267SjkimFixed a problem where the _SST execution status was incorrectly returned to 2642193267Sjkimthe caller of AcpiEnterSleepStatePrep. This was a regression introduced in 2643193267Sjkim20080514. _SST is optional and a NOT_FOUND exception should never be 2644193267Sjkimreturned. BZ 716 2645193267Sjkim 2646193267SjkimFixed a problem where a deleted object could be accessed from within the AML 2647220663Sjkimparser. This was a regression introduced in version 20080123 as a fix for the 2648193267SjkimUnload operator. Lin Ming. BZ 10669 2649193267Sjkim 2650193267SjkimCleaned up the debug operand dump mechanism. Eliminated unnecessary operands 2651193267Sjkimand eliminated the use of a negative index in a loop. Operands are now 2652193267Sjkimdisplayed in the correct order, not backwards. This also fixes a regression 2653193267Sjkimintroduced in 20080514 on 64-bit systems where the elimination of 2654193267SjkimACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715 2655193267Sjkim 2656193267SjkimFixed a possible memory leak in EvPciConfigRegionSetup where the error exit 2657193267Sjkimpath did not delete a locally allocated structure. 2658193267Sjkim 2659193267SjkimUpdated definitions for the DMAR and SRAT tables to synchronize with the 2660193267Sjkimcurrent specifications. Includes disassembler support. 2661193267Sjkim 2662193267SjkimFixed a problem in the mutex debug code (in utmutex.c) where an incorrect 2663193267Sjkimloop termination value was used. Loop terminated on iteration early, missing 2664193267Sjkimone mutex. Linn Crosetto 2665193267Sjkim 2666193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2667193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2668220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2669193267Sjkimmuch larger code and data size. 2670193267Sjkim 2671193267Sjkim Previous Release: 2672193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 2673193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 2674193267Sjkim Current Release: 2675193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 2676193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 2677193267Sjkim 2678193267Sjkim2) iASL Compiler/Disassembler and Tools: 2679193267Sjkim 2680193267SjkimDisassembler: Implemented support for EisaId() within _CID objects. Now 2681193267Sjkimdisassemble integer _CID objects back to EisaId invocations, including 2682193267Sjkimmultiple integers within _CID packages. Includes single-step support for 2683193267Sjkimdebugger also. 2684193267Sjkim 2685193267SjkimDisassembler: Added support for DMAR and SRAT table definition changes. 2686193267Sjkim 2687193267Sjkim---------------------------------------- 2688193267Sjkim14 May 2008. Summary of changes for version 20080514: 2689193267Sjkim 2690193267Sjkim1) ACPI CA Core Subsystem: 2691193267Sjkim 2692193267SjkimFixed a problem where GPEs were enabled too early during the ACPICA 2693193267Sjkiminitialization. This could lead to "handler not installed" errors on some 2694193267Sjkimmachines. Moved GPE enable until after _REG/_STA/_INI methods are run. This 2695193267Sjkimensures that all operation regions and devices throughout the namespace have 2696193267Sjkimbeen initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916. 2697193267Sjkim 2698193267SjkimImplemented a change to the enter sleep code. Moved execution of the _GTS 2699193267Sjkimmethod to just before setting sleep enable bit. The execution was moved from 2700193267SjkimAcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed 2701193267Sjkimimmediately before the SLP_EN bit is set, as per the ACPI specification. 2702193267SjkimLuming Yu, BZ 1653. 2703193267Sjkim 2704193267SjkimImplemented a fix to disable unknown GPEs (2nd version). Now always disable 2705193267Sjkimthe GPE, even if ACPICA thinks that that it is already disabled. It is 2706193267Sjkimpossible that the AML or some other code has enabled the GPE unbeknownst to 2707193267Sjkimthe ACPICA code. 2708193267Sjkim 2709220663SjkimFixed a problem with the Field operator where zero-length fields would return 2710220663Sjkiman AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL 2711193267Sjkimfield declarations in Field(), BankField(), and IndexField(). BZ 10606. 2712193267Sjkim 2713193267SjkimImplemented a fix for the Load operator, now load the table at the namespace 2714193267Sjkimroot. This reverts a change introduced in version 20071019. The table is now 2715193267Sjkimloaded at the namespace root even though this goes against the ACPI 2716193267Sjkimspecification. This provides compatibility with other ACPI implementations. 2717220663SjkimThe ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming. 2718193267Sjkim 2719220663SjkimFixed a problem where ACPICA would not Load() tables with unusual signatures. 2720193267SjkimNow ignore ACPI table signature for Load() operator. Only "SSDT" is 2721193267Sjkimacceptable to the ACPI spec, but tables are seen with OEMx and null sigs. 2722220663SjkimTherefore, signature validation is worthless. Apparently MS ACPI accepts such 2723193267Sjkimsignatures, ACPICA must be compatible. BZ 10454. 2724193267Sjkim 2725193267SjkimFixed a possible negative array index in AcpiUtValidateException. Added NULL 2726193267Sjkimfields to the exception string arrays to eliminate a -1 subtraction on the 2727193267SjkimSubStatus field. 2728193267Sjkim 2729193267SjkimUpdated the debug tracking macros to reduce overall code and data size. 2730193267SjkimChanged ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings 2731193267Sjkiminstead of pointers to static strings. Jan Beulich and Bob Moore. 2732193267Sjkim 2733193267SjkimImplemented argument count checking in control method invocation via 2734193267SjkimAcpiEvaluateObject. Now emit an error if too few arguments, warning if too 2735193267Sjkimmany. This applies only to extern programmatic control method execution, not 2736193267Sjkimmethod-to-method calls within the AML. Lin Ming. 2737193267Sjkim 2738193267SjkimEliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no 2739220663Sjkimlonger needed, especially with the removal of 16-bit support. It was replaced 2740220663Sjkimmostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on 2741193267Sjkim32/64-bit platforms is required. 2742193267Sjkim 2743193267SjkimAdded the C const qualifier for appropriate string constants -- mostly 2744193267SjkimMODULE_NAME and printf format strings. Jan Beulich. 2745193267Sjkim 2746193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2747193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2748220663Sjkimdebug version of the code includes the debug output trace mechanism and has a 2749193267Sjkimmuch larger code and data size. 2750193267Sjkim 2751193267Sjkim Previous Release: 2752193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 2753193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 2754193267Sjkim Current Release: 2755193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 2756193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 2757193267Sjkim 2758193267Sjkim2) iASL Compiler/Disassembler and Tools: 2759193267Sjkim 2760193267SjkimImplemented ACPI table revision ID validation in the disassembler. Zero is 2761193267Sjkimalways invalid. For DSDTs, the ID controls the interpreter integer width. 1 2762193267Sjkimmeans 32-bit and this is unusual. 2 or greater is 64-bit. 2763193267Sjkim 2764193267Sjkim---------------------------------------- 2765193267Sjkim21 March 2008. Summary of changes for version 20080321: 2766193267Sjkim 2767193267Sjkim1) ACPI CA Core Subsystem: 2768193267Sjkim 2769193267SjkimImplemented an additional change to the GPE support in order to suppress 2770193267Sjkimspurious or stray GPEs. The AcpiEvDisableGpe function will now permanently 2771193267Sjkimdisable incoming GPEs that are neither enabled nor disabled -- meaning that 2772220663Sjkimthe GPE is unknown to the system. This should prevent future interrupt floods 2773193267Sjkimfrom that GPE. BZ 6217 (Zhang Rui) 2774193267Sjkim 2775193267SjkimFixed a problem where NULL package elements were not returned to the 2776193267SjkimAcpiEvaluateObject interface correctly. The element was simply ignored 2777193267Sjkiminstead of returning a NULL ACPI_OBJECT package element, potentially causing 2778193267Sjkima buffer overflow and/or confusing the caller who expected a fixed number of 2779193267Sjkimelements. BZ 10132 (Lin Ming, Bob Moore) 2780193267Sjkim 2781220663SjkimFixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword, 2782193267SjkimQword), Field, BankField, and IndexField operators when invoked from inside 2783193267Sjkiman executing control method. In this case, these operators created namespace 2784193267Sjkimnodes that were incorrectly left marked as permanent nodes instead of 2785193267Sjkimtemporary nodes. This could cause a problem if there is race condition 2786193267Sjkimbetween an exiting control method and a running namespace walk. (Reported by 2787193267SjkimLinn Crosetto) 2788193267Sjkim 2789193267SjkimFixed a problem where the CreateField and CreateXXXField operators would 2790193267Sjkimincorrectly allow duplicate names (the name of the field) with no exception 2791193267Sjkimgenerated. 2792193267Sjkim 2793220663SjkimImplemented several changes for Notify handling. Added support for new Notify 2794193267Sjkimvalues (ACPI 2.0+) and improved the Notify debug output. Notify on 2795193267SjkimPowerResource objects is no longer allowed, as per the ACPI specification. 2796193267Sjkim(Bob Moore, Zhang Rui) 2797193267Sjkim 2798193267SjkimAll Reference Objects returned via the AcpiEvaluateObject interface are now 2799220663Sjkimmarked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for 2800193267SjkimNULL objects - either NULL package elements or unresolved named references. 2801193267Sjkim 2802193267SjkimFixed a problem where an extraneous debug message was produced for package 2803193267Sjkimobjects (when debugging enabled). The message "Package List length larger 2804193267Sjkimthan NumElements count" is now produced in the correct case, and is now an 2805193267Sjkimerror message rather than a debug message. Added a debug message for the 2806220663Sjkimopposite case, where NumElements is larger than the Package List (the package 2807193267Sjkimwill be padded out with NULL elements as per the ACPI spec.) 2808193267Sjkim 2809193267SjkimImplemented several improvements for the output of the ASL "Debug" object to 2810193267Sjkimclarify and keep all data for a given object on one output line. 2811193267Sjkim 2812193267SjkimFixed two size calculation issues with the variable-length Start Dependent 2813193267Sjkimresource descriptor. 2814193267Sjkim 2815193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2816193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2817193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2818193267Sjkima much larger code and data size. 2819193267Sjkim 2820193267Sjkim Previous Release: 2821193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 2822193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 2823193267Sjkim Current Release: 2824193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 2825193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 2826193267Sjkim 2827193267Sjkim2) iASL Compiler/Disassembler and Tools: 2828193267Sjkim 2829193267SjkimFixed a problem with the use of the Switch operator where execution of the 2830193267Sjkimcontaining method by multiple concurrent threads could cause an 2831193267SjkimAE_ALREADY_EXISTS exception. This is caused by the fact that there is no 2832193267Sjkimactual Switch opcode, it must be simulated with local named temporary 2833193267Sjkimvariables and if/else pairs. The solution chosen was to mark any method that 2834193267Sjkimuses Switch as Serialized, thus preventing multiple thread entries. BZ 469. 2835193267Sjkim 2836193267Sjkim---------------------------------------- 2837193267Sjkim13 February 2008. Summary of changes for version 20080213: 2838193267Sjkim 2839193267Sjkim1) ACPI CA Core Subsystem: 2840193267Sjkim 2841193267SjkimImplemented another MS compatibility design change for GPE/Notify handling. 2842193267SjkimGPEs are now cleared/enabled asynchronously to allow all pending notifies to 2843193267Sjkimcomplete first. It is expected that the OSL will queue the enable request 2844220663Sjkimbehind all pending notify requests (may require changes to the local host OSL 2845193267Sjkimin AcpiOsExecute). Alexey Starikovskiy. 2846193267Sjkim 2847193267SjkimFixed a problem where buffer and package objects passed as arguments to a 2848193267Sjkimcontrol method via the external AcpiEvaluateObject interface could cause an 2849193267SjkimAE_AML_INTERNAL exception depending on the order and type of operators 2850193267Sjkimexecuted by the target control method. 2851193267Sjkim 2852193267SjkimFixed a problem where resource descriptor size optimization could cause a 2853193267Sjkimproblem when a _CRS resource template is passed to a _SRS method. The _SRS 2854193267Sjkimresource template must use the same descriptors (with the same size) as 2855193267Sjkimreturned from _CRS. This change affects the following resource descriptors: 2856193267SjkimIRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487) 2857193267Sjkim 2858193267SjkimFixed a problem where a CopyObject to RegionField, BankField, and IndexField 2859220663Sjkimobjects did not perform an implicit conversion as it should. These types must 2860220663Sjkimretain their initial type permanently as per the ACPI specification. However, 2861193267Sjkima CopyObject to all other object types should not perform an implicit 2862193267Sjkimconversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388 2863193267Sjkim 2864193267SjkimFixed a problem with the AcpiGetDevices interface where the mechanism to 2865193267Sjkimmatch device CIDs did not examine the entire list of available CIDs, but 2866193267Sjkiminstead aborted on the first non-matching CID. Andrew Patterson. 2867193267Sjkim 2868220663SjkimFixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was 2869193267Sjkiminadvertently changed to return a 16-bit value instead of a 32-bit value, 2870193267Sjkimtruncating the upper dword of a 64-bit value. This macro is only used to 2871193267Sjkimdisplay debug output, so no incorrect calculations were made. Also, 2872193267Sjkimreimplemented the macro so that a 64-bit shift is not performed by 2873193267Sjkiminefficient compilers. 2874193267Sjkim 2875193267SjkimAdded missing va_end statements that should correspond with each va_start 2876193267Sjkimstatement. 2877193267Sjkim 2878193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2879193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2880193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2881193267Sjkima much larger code and data size. 2882193267Sjkim 2883193267Sjkim Previous Release: 2884193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2885193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2886193267Sjkim Current Release: 2887193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 2888193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 2889193267Sjkim 2890193267Sjkim2) iASL Compiler/Disassembler and Tools: 2891193267Sjkim 2892193267SjkimImplemented full disassembler support for the following new ACPI tables: 2893193267SjkimBERT, EINJ, and ERST. Implemented partial disassembler support for the 2894193267Sjkimcomplicated HEST table. These tables support the Windows Hardware Error 2895193267SjkimArchitecture (WHEA). 2896193267Sjkim 2897193267Sjkim---------------------------------------- 2898193267Sjkim23 January 2008. Summary of changes for version 20080123: 2899193267Sjkim 2900193267Sjkim1) ACPI CA Core Subsystem: 2901193267Sjkim 2902193267SjkimAdded the 2008 copyright to all module headers and signons. This affects 2903193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2904193267Sjkimthe tools/utilities. 2905193267Sjkim 2906193267SjkimFixed a problem with the SizeOf operator when used with Package and Buffer 2907193267Sjkimobjects. These objects have deferred execution for some arguments, and the 2908220663Sjkimexecution is now completed before the SizeOf is executed. This problem caused 2909193267Sjkimunexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ 2910193267Sjkim9558 2911193267Sjkim 2912220663SjkimImplemented an enhancement to the interpreter "slack mode". In the absence of 2913193267Sjkiman explicit return or an implicitly returned object from the last executed 2914220663Sjkimopcode, a control method will now implicitly return an integer of value 0 for 2915193267SjkimMicrosoft compatibility. (Lin Ming) BZ 392 2916193267Sjkim 2917220663SjkimFixed a problem with the Load operator where an exception was not returned in 2918193267Sjkimthe case where the table is already loaded. (Lin Ming) BZ 463 2919193267Sjkim 2920220663SjkimImplemented support for the use of DDBHandles as an Indexed Reference, as per 2921193267Sjkimthe ACPI spec. (Lin Ming) BZ 486 2922193267Sjkim 2923193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2924193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2925193267Sjkim 2926193267SjkimFixed a problem with the LoadTable operator where the OemId and OemTableId 2927193267Sjkiminput strings could cause unexpected failures if they were shorter than the 2928193267Sjkimmaximum lengths allowed. (Lin Ming, Bob Moore) BZ 576 2929193267Sjkim 2930193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2931193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2932193267Sjkim 2933220663SjkimImplemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST, 2934193267SjkimIBFT, UEFI, WDAT. Disassembler support is forthcoming. 2935193267Sjkim 2936193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2937193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2938193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2939193267Sjkima much larger code and data size. 2940193267Sjkim 2941193267Sjkim Previous Release: 2942193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2943193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2944193267Sjkim Current Release: 2945193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2946193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2947193267Sjkim 2948193267Sjkim2) iASL Compiler/Disassembler and Tools: 2949193267Sjkim 2950193267SjkimImplemented support in the disassembler for checksum validation on incoming 2951220663Sjkimbinary DSDTs and SSDTs. If incorrect, a message is displayed within the table 2952193267Sjkimheader dump at the start of the disassembly. 2953193267Sjkim 2954193267SjkimImplemented additional debugging information in the namespace listing file 2955193267Sjkimcreated during compilation. In addition to the namespace hierarchy, the full 2956193267Sjkimpathname to each namespace object is displayed. 2957193267Sjkim 2958193267SjkimFixed a problem with the disassembler where invalid ACPI tables could cause 2959193267Sjkimfaults or infinite loops. 2960193267Sjkim 2961193267SjkimFixed an unexpected parse error when using the optional "parameter types" 2962193267Sjkimlist in a control method declaration. (Lin Ming) BZ 397 2963193267Sjkim 2964193267SjkimFixed a problem where two External declarations with the same name did not 2965193267Sjkimcause an error (Lin Ming) BZ 509 2966193267Sjkim 2967193267SjkimImplemented support for full TermArgs (adding Argx, Localx and method 2968193267Sjkiminvocation) for the ParameterData parameter to the LoadTable operator. (Lin 2969193267SjkimMing) BZ 583,587 2970193267Sjkim 2971193267Sjkim---------------------------------------- 2972193267Sjkim19 December 2007. Summary of changes for version 20071219: 2973193267Sjkim 2974193267Sjkim1) ACPI CA Core Subsystem: 2975193267Sjkim 2976193267SjkimImplemented full support for deferred execution for the TermArg string 2977193267Sjkimarguments for DataTableRegion. This enables forward references and full 2978220663Sjkimoperand resolution for the three string arguments. Similar to OperationRegion 2979193267Sjkimdeferred argument execution.) Lin Ming. BZ 430 2980193267Sjkim 2981193267SjkimImplemented full argument resolution support for the BankValue argument to 2982193267SjkimBankField. Previously, only constants were supported, now any TermArg may be 2983193267Sjkimused. Lin Ming BZ 387, 393 2984193267Sjkim 2985193267SjkimFixed a problem with AcpiGetDevices where the search of a branch of the 2986193267Sjkimdevice tree could be terminated prematurely. In accordance with the ACPI 2987193267Sjkimspecification, the search down the current branch is terminated if a device 2988193267Sjkimis both not present and not functional (instead of just not present.) Yakui 2989193267SjkimZhao. 2990193267Sjkim 2991193267SjkimFixed a problem where "unknown" GPEs could be allowed to fire repeatedly if 2992193267Sjkimthe underlying AML code changed the GPE enable registers. Now, any unknown 2993220663Sjkimincoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled 2994193267Sjkiminstead of simply ignored. Rui Zhang. 2995193267Sjkim 2996193267SjkimFixed a problem with Index Fields where the Index register was incorrectly 2997193267Sjkimlimited to a maximum of 32 bits. Now any size may be used. 2998193267Sjkim 2999193267SjkimFixed a couple memory leaks associated with "implicit return" objects when 3000193267Sjkimthe AML Interpreter slack mode is enabled. Lin Ming BZ 349 3001193267Sjkim 3002193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3003193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3004193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3005193267Sjkima much larger code and data size. 3006193267Sjkim 3007193267Sjkim Previous Release: 3008193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 3009193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 3010193267Sjkim Current Release: 3011193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 3012193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 3013193267Sjkim 3014193267Sjkim---------------------------------------- 3015193267Sjkim14 November 2007. Summary of changes for version 20071114: 3016193267Sjkim 3017193267Sjkim1) ACPI CA Core Subsystem: 3018193267Sjkim 3019193267SjkimImplemented event counters for each of the Fixed Events, the ACPI SCI 3020193267Sjkim(interrupt) itself, and control methods executed. Named 3021193267SjkimAcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These 3022193267Sjkimshould be useful for debugging and statistics. 3023193267Sjkim 3024193267SjkimImplemented a new external interface, AcpiGetStatistics, to retrieve the 3025193267Sjkimcontents of the various event counters. Returns the current values for 3026193267SjkimAcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and 3027193267SjkimAcpiMethodCount. The interface can be expanded in the future if new counters 3028193267Sjkimare added. Device drivers should use this interface rather than access the 3029193267Sjkimcounters directly. 3030193267Sjkim 3031193267SjkimFixed a problem with the FromBCD and ToBCD operators. With some compilers, 3032193267Sjkimthe ShortDivide function worked incorrectly, causing problems with the BCD 3033193267Sjkimfunctions with large input values. A truncation from 64-bit to 32-bit 3034193267Sjkiminadvertently occurred. Internal BZ 435. Lin Ming 3035193267Sjkim 3036193267SjkimFixed a problem with Index references passed as method arguments. References 3037193267Sjkimpassed as arguments to control methods were dereferenced immediately (before 3038193267Sjkimcontrol was passed to the called method). The references are now correctly 3039193267Sjkimpassed directly to the called method. BZ 5389. Lin Ming 3040193267Sjkim 3041193267SjkimFixed a problem with CopyObject used in conjunction with the Index operator. 3042193267SjkimThe reference was incorrectly dereferenced before the copy. The reference is 3043193267Sjkimnow correctly copied. BZ 5391. Lin Ming 3044193267Sjkim 3045193267SjkimFixed a problem with Control Method references within Package objects. These 3046193267Sjkimreferences are now correctly generated. This completes the package 3047193267Sjkimconstruction overhaul that began in version 20071019. 3048193267Sjkim 3049193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3050193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3051193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3052193267Sjkima much larger code and data size. 3053193267Sjkim 3054193267Sjkim Previous Release: 3055193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 3056193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 3057193267Sjkim Current Release: 3058193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 3059193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 3060193267Sjkim 3061193267Sjkim 3062193267Sjkim2) iASL Compiler/Disassembler and Tools: 3063193267Sjkim 3064193267SjkimThe AcpiExec utility now installs handlers for all of the predefined 3065193267SjkimOperation Region types. New types supported are: PCI_Config, CMOS, and 3066193267SjkimPCIBARTarget. 3067193267Sjkim 3068193267SjkimFixed a problem with the 64-bit version of AcpiExec where the extended (64- 3069193267Sjkimbit) address fields for the DSDT and FACS within the FADT were not being 3070193267Sjkimused, causing truncation of the upper 32-bits of these addresses. Lin Ming 3071193267Sjkimand Bob Moore 3072193267Sjkim 3073193267Sjkim---------------------------------------- 3074193267Sjkim19 October 2007. Summary of changes for version 20071019: 3075193267Sjkim 3076193267Sjkim1) ACPI CA Core Subsystem: 3077193267Sjkim 3078193267SjkimFixed a problem with the Alias operator when the target of the alias is a 3079193267Sjkimnamed ASL operator that opens a new scope -- Scope, Device, PowerResource, 3080193267SjkimProcessor, and ThermalZone. In these cases, any children of the original 3081193267Sjkimoperator could not be accessed via the alias, potentially causing unexpected 3082193267SjkimAE_NOT_FOUND exceptions. (BZ 9067) 3083193267Sjkim 3084193267SjkimFixed a problem with the Package operator where all named references were 3085193267Sjkimcreated as object references and left otherwise unresolved. According to the 3086193267SjkimACPI specification, a Package can only contain Data Objects or references to 3087193267Sjkimcontrol methods. The implication is that named references to Data Objects 3088193267Sjkim(Integer, Buffer, String, Package, BufferField, Field) should be resolved 3089193267Sjkimimmediately upon package creation. This is the approach taken with this 3090193267Sjkimchange. References to all other named objects (Methods, Devices, Scopes, 3091193267Sjkimetc.) are all now properly created as reference objects. (BZ 5328) 3092193267Sjkim 3093193267SjkimReverted a change to Notify handling that was introduced in version 3094193267Sjkim20070508. This version changed the Notify handling from asynchronous to 3095193267Sjkimfully synchronous (Device driver Notify handling with respect to the Notify 3096193267SjkimASL operator). It was found that this change caused more problems than it 3097193267Sjkimsolved and was removed by most users. 3098193267Sjkim 3099193267SjkimFixed a problem with the Increment and Decrement operators where the type of 3100193267Sjkimthe target object could be unexpectedly and incorrectly changed. (BZ 353) 3101193267SjkimLin Ming. 3102193267Sjkim 3103193267SjkimFixed a problem with the Load and LoadTable operators where the table 3104193267Sjkimlocation within the namespace was ignored. Instead, the table was always 3105193267Sjkimloaded into the root or current scope. Lin Ming. 3106193267Sjkim 3107193267SjkimFixed a problem with the Load operator when loading a table from a buffer 3108193267Sjkimobject. The input buffer was prematurely zeroed and/or deleted. (BZ 577) 3109193267Sjkim 3110193267SjkimFixed a problem with the Debug object where a store of a DdbHandle reference 3111193267Sjkimobject to the Debug object could cause a fault. 3112193267Sjkim 3113193267SjkimAdded a table checksum verification for the Load operator, in the case where 3114193267Sjkimthe load is from a buffer. (BZ 578). 3115193267Sjkim 3116193267SjkimImplemented additional parameter validation for the LoadTable operator. The 3117193267Sjkimlength of the input strings SignatureString, OemIdString, and OemTableId are 3118193267Sjkimnow checked for maximum lengths. (BZ 582) Lin Ming. 3119193267Sjkim 3120193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3121193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3122193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3123193267Sjkima much larger code and data size. 3124193267Sjkim 3125193267Sjkim Previous Release: 3126193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 3127193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 3128193267Sjkim Current Release: 3129193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 3130193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 3131193267Sjkim 3132193267Sjkim 3133193267Sjkim2) iASL Compiler/Disassembler: 3134193267Sjkim 3135193267SjkimFixed a problem where if a single file was specified and the file did not 3136193267Sjkimexist, no error message was emitted. (Introduced with wildcard support in 3137193267Sjkimversion 20070917.) 3138193267Sjkim 3139193267Sjkim---------------------------------------- 3140193267Sjkim19 September 2007. Summary of changes for version 20070919: 3141193267Sjkim 3142193267Sjkim1) ACPI CA Core Subsystem: 3143193267Sjkim 3144193267SjkimDesigned and implemented new external interfaces to install and remove 3145193267Sjkimhandlers for ACPI table-related events. Current events that are defined are 3146193267SjkimLOAD and UNLOAD. These interfaces allow the host to track ACPI tables as 3147193267Sjkimthey are dynamically loaded and unloaded. See AcpiInstallTableHandler and 3148193267SjkimAcpiRemoveTableHandler. (Lin Ming and Bob Moore) 3149193267Sjkim 3150193267SjkimFixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 3151193267Sjkim(acpi_serialized option on Linux) could cause some systems to hang during 3152193267Sjkiminitialization. (Bob Moore) BZ 8171 3153193267Sjkim 3154193267SjkimFixed a problem where objects of certain types (Device, ThermalZone, 3155193267SjkimProcessor, PowerResource) can be not found if they are declared and 3156193267Sjkimreferenced from within the same control method (Lin Ming) BZ 341 3157193267Sjkim 3158193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3159193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3160193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3161193267Sjkima much larger code and data size. 3162193267Sjkim 3163193267Sjkim Previous Release: 3164193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 3165193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 3166193267Sjkim Current Release: 3167193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 3168193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 3169193267Sjkim 3170193267Sjkim 3171193267Sjkim2) iASL Compiler/Disassembler: 3172193267Sjkim 3173193267SjkimImplemented support to allow multiple files to be compiled/disassembled in a 3174193267Sjkimsingle invocation. This includes command line wildcard support for both the 3175193267SjkimWindows and Unix versions of the compiler. This feature simplifies the 3176193267Sjkimdisassembly and compilation of multiple ACPI tables in a single directory. 3177193267Sjkim 3178193267Sjkim---------------------------------------- 3179193267Sjkim08 May 2007. Summary of changes for version 20070508: 3180193267Sjkim 3181193267Sjkim1) ACPI CA Core Subsystem: 3182193267Sjkim 3183193267SjkimImplemented a Microsoft compatibility design change for the handling of the 3184193267SjkimNotify AML operator. Previously, notify handlers were dispatched and 3185193267Sjkimexecuted completely asynchronously in a deferred thread. The new design 3186193267Sjkimstill executes the notify handlers in a different thread, but the original 3187193267Sjkimthread that executed the Notify() now waits at a synchronization point for 3188193267Sjkimthe notify handler to complete. Some machines depend on a synchronous Notify 3189193267Sjkimoperator in order to operate correctly. 3190193267Sjkim 3191193267SjkimImplemented support to allow Package objects to be passed as method 3192193267Sjkimarguments to the external AcpiEvaluateObject interface. Previously, this 3193193267Sjkimwould return the AE_NOT_IMPLEMENTED exception. This feature had not been 3194193267Sjkimimplemented since there were no reserved control methods that required it 3195193267Sjkimuntil recently. 3196193267Sjkim 3197193267SjkimFixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that 3198193267Sjkimcontained invalid non-zero values in reserved fields could cause later 3199193267Sjkimfailures because these fields have meaning in later revisions of the FADT. 3200193267SjkimFor incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields 3201193267Sjkimare: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.) 3202193267Sjkim 3203193267SjkimFixed a problem where the Global Lock handle was not properly updated if a 3204193267Sjkimthread that acquired the Global Lock via executing AML code then attempted 3205193267Sjkimto acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe 3206193267SjkimLiu. 3207193267Sjkim 3208193267SjkimFixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list 3209193267Sjkimcould be corrupted if the interrupt being removed was at the head of the 3210193267Sjkimlist. Reported by Linn Crosetto. 3211193267Sjkim 3212193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3213193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3214193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3215193267Sjkima much larger code and data size. 3216193267Sjkim 3217193267Sjkim Previous Release: 3218193267Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 3219193267Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 3220193267Sjkim Current Release: 3221193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 3222193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 3223193267Sjkim 3224193267Sjkim---------------------------------------- 3225167802Sjkim20 March 2007. Summary of changes for version 20070320: 3226167802Sjkim 3227167802Sjkim1) ACPI CA Core Subsystem: 3228167802Sjkim 3229193267SjkimImplemented a change to the order of interpretation and evaluation of AML 3230193267Sjkimoperand objects within the AML interpreter. The interpreter now evaluates 3231193267Sjkimoperands in the order that they appear in the AML stream (and the 3232193267Sjkimcorresponding ASL code), instead of in the reverse order (after the entire 3233193267Sjkimoperand list has been parsed). The previous behavior caused several subtle 3234193267Sjkimincompatibilities with the Microsoft AML interpreter as well as being 3235193267Sjkimsomewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov. 3236167802Sjkim 3237193267SjkimImplemented a change to the ACPI Global Lock support. All interfaces to the 3238193267Sjkimglobal lock now allow the same thread to acquire the lock multiple times. 3239193267SjkimThis affects the AcpiAcquireGlobalLock external interface to the global lock 3240193267Sjkimas well as the internal use of the global lock to support AML fields -- a 3241193267Sjkimcontrol method that is holding the global lock can now simultaneously access 3242193267SjkimAML fields that require global lock protection. Previously, in both cases, 3243193267Sjkimthis would have resulted in an AE_ALREADY_ACQUIRED exception. The change to 3244193267SjkimAcpiAcquireGlobalLock is of special interest to drivers for the Embedded 3245193267SjkimController. There is no change to the behavior of the AML Acquire operator, 3246193267Sjkimas this can already be used to acquire a mutex multiple times by the same 3247193267Sjkimthread. BZ 8066. With assistance from Alexey Starikovskiy. 3248167802Sjkim 3249193267SjkimFixed a problem where invalid objects could be referenced in the AML 3250193267SjkimInterpreter after error conditions. During operand evaluation, ensure that 3251193267Sjkimthe internal "Return Object" field is cleared on error and only valid 3252193267Sjkimpointers are stored there. Caused occasional access to deleted objects that 3253193267Sjkimresulted in "large reference count" warning messages. Valery Podrezov. 3254167802Sjkim 3255193267SjkimFixed a problem where an AE_STACK_OVERFLOW internal exception could occur on 3256193267Sjkimdeeply nested control method invocations. BZ 7873, local BZ 487. Valery 3257193267SjkimPodrezov. 3258167802Sjkim 3259193267SjkimFixed an internal problem with the handling of result objects on the 3260193267Sjkiminterpreter result stack. BZ 7872. Valery Podrezov. 3261167802Sjkim 3262193267SjkimRemoved obsolete code that handled the case where AML_NAME_OP is the target 3263193267Sjkimof a reference (Reference.Opcode). This code was no longer necessary. BZ 3264193267Sjkim7874. Valery Podrezov. 3265167802Sjkim 3266193267SjkimRemoved obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a 3267193267Sjkimremnant from the previously discontinued 16-bit support. 3268167802Sjkim 3269193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3270193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3271193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3272193267Sjkima much larger code and data size. 3273167802Sjkim 3274167802Sjkim Previous Release: 3275167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 3276167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 3277167802Sjkim Current Release: 3278167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 3279167802Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 3280167802Sjkim 3281167802Sjkim---------------------------------------- 3282167802Sjkim26 January 2007. Summary of changes for version 20070126: 3283167802Sjkim 3284167802Sjkim1) ACPI CA Core Subsystem: 3285167802Sjkim 3286193267SjkimAdded the 2007 copyright to all module headers and signons. This affects 3287193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 3288193267Sjkimthe utilities. 3289167802Sjkim 3290193267SjkimImplemented a fix for an incorrect parameter passed to AcpiTbDeleteTable 3291193267Sjkimduring a table load. A bad pointer was passed in the case where the DSDT is 3292193267Sjkimoverridden, causing a fault in this case. 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: 78.0K Code, 17.1K Data, 95.1K Total 3301167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 3302167802Sjkim Current Release: 3303167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 3304167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 3305167802Sjkim 3306167802Sjkim---------------------------------------- 3307167802Sjkim15 December 2006. Summary of changes for version 20061215: 3308167802Sjkim 3309167802Sjkim1) ACPI CA Core Subsystem: 3310167802Sjkim 3311193267SjkimSupport for 16-bit ACPICA has been completely removed since it is no longer 3312193267Sjkimnecessary and it clutters the code. All 16-bit macros, types, and 3313193267Sjkimconditional compiles have been removed, cleaning up and simplifying the code 3314193267Sjkimacross the entire subsystem. DOS support is no longer needed since the 3315193267Sjkimbootable Linux firmware kit is now available. 3316167802Sjkim 3317193267SjkimThe handler for the Global Lock is now removed during AcpiTerminate to 3318193267Sjkimenable a clean subsystem restart, via the implementation of the 3319193267SjkimAcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz, 3320193267SjkimHP) 3321167802Sjkim 3322193267SjkimImplemented enhancements to the multithreading support within the debugger 3323193267Sjkimto enable improved multithreading debugging and evaluation of the subsystem. 3324167802Sjkim(Valery Podrezov) 3325167802Sjkim 3326193267SjkimDebugger: Enhanced the Statistics/Memory command to emit the total (maximum) 3327193267Sjkimmemory used during the execution, as well as the maximum memory consumed by 3328193267Sjkimeach of the various object types. (Valery Podrezov) 3329167802Sjkim 3330193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3331193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3332193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3333193267Sjkima much larger code and data size. 3334193267Sjkim 3335167802Sjkim Previous Release: 3336167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 3337167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 3338167802Sjkim Current Release: 3339167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 3340167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 3341167802Sjkim 3342167802Sjkim 3343167802Sjkim2) iASL Compiler/Disassembler and Tools: 3344167802Sjkim 3345193267SjkimAcpiExec: Implemented a new option (-m) to display full memory use 3346193267Sjkimstatistics upon subsystem/program termination. (Valery Podrezov) 3347167802Sjkim 3348167802Sjkim---------------------------------------- 3349167802Sjkim09 November 2006. Summary of changes for version 20061109: 3350167802Sjkim 3351167802Sjkim1) ACPI CA Core Subsystem: 3352167802Sjkim 3353193267SjkimOptimized the Load ASL operator in the case where the source operand is an 3354193267Sjkimoperation region. Simply map the operation region memory, instead of 3355193267Sjkimperforming a bytewise read. (Region must be of type SystemMemory, see 3356193267Sjkimbelow.) 3357167802Sjkim 3358193267SjkimFixed the Load ASL operator for the case where the source operand is a 3359193267Sjkimregion field. A buffer object is also allowed as the source operand. BZ 480 3360167802Sjkim 3361193267SjkimFixed a problem where the Load ASL operator allowed the source operand to be 3362193267Sjkiman operation region of any type. It is now restricted to regions of type 3363193267SjkimSystemMemory, as per the ACPI specification. BZ 481 3364167802Sjkim 3365193267SjkimAdditional cleanup and optimizations for the new Table Manager code. 3366167802Sjkim 3367193267SjkimAcpiEnable will now fail if all of the required ACPI tables are not loaded 3368193267Sjkim(FADT, FACS, DSDT). BZ 477 3369167802Sjkim 3370193267SjkimAdded #pragma pack(8/4) to acobject.h to ensure that the structures in this 3371193267Sjkimheader are always compiled as aligned. The ACPI_OPERAND_OBJECT has been 3372193267Sjkimmanually optimized to be aligned and will not work if it is byte-packed. 3373167802Sjkim 3374193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3375193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3376193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3377193267Sjkima much larger code and data size. 3378167802Sjkim 3379167802Sjkim Previous Release: 3380167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 3381167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 3382167802Sjkim Current Release: 3383167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 3384167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 3385167802Sjkim 3386167802Sjkim 3387167802Sjkim2) iASL Compiler/Disassembler and Tools: 3388167802Sjkim 3389193267SjkimFixed a problem where the presence of the _OSI predefined control method 3390193267Sjkimwithin complex expressions could cause an internal compiler error. 3391167802Sjkim 3392193267SjkimAcpiExec: Implemented full region support for multiple address spaces. 3393193267SjkimSpaceId is now part of the REGION object. BZ 429 3394167802Sjkim 3395167802Sjkim---------------------------------------- 3396167802Sjkim11 October 2006. Summary of changes for version 20061011: 3397167802Sjkim 3398167802Sjkim1) ACPI CA Core Subsystem: 3399167802Sjkim 3400193267SjkimCompleted an AML interpreter performance enhancement for control method 3401193267Sjkimexecution. Previously a 2-pass parse/execution, control methods are now 3402193267Sjkimcompletely parsed and executed in a single pass. This improves overall 3403193267Sjkiminterpreter performance by ~25%, reduces code size, and reduces CPU stack 3404193267Sjkimuse. (Valery Podrezov + interpreter changes in version 20051202 that 3405193267Sjkimeliminated namespace loading during the pass one parse.) 3406167802Sjkim 3407193267SjkimImplemented _CID support for PCI Root Bridge detection. If the _HID does not 3408193267Sjkimmatch the predefined PCI Root Bridge IDs, the _CID list (if present) is now 3409193267Sjkimobtained and also checked for an ID match. 3410167802Sjkim 3411193267SjkimImplemented additional support for the PCI _ADR execution: upsearch until a 3412193267Sjkimdevice scope is found before executing _ADR. This allows PCI_Config 3413193267Sjkimoperation regions to be declared locally within control methods underneath 3414193267SjkimPCI device objects. 3415167802Sjkim 3416193267SjkimFixed a problem with a possible race condition between threads executing 3417193267SjkimAcpiWalkNamespace and the AML interpreter. This condition was removed by 3418193267Sjkimmodifying AcpiWalkNamespace to (by default) ignore all temporary namespace 3419193267Sjkimentries created during any concurrent control method execution. An 3420193267Sjkimadditional namespace race condition is known to exist between 3421193267SjkimAcpiWalkNamespace and the Load/Unload ASL operators and is still under 3422193267Sjkiminvestigation. 3423167802Sjkim 3424193267SjkimRestructured the AML ParseLoop function, breaking it into several 3425193267Sjkimsubfunctions in order to reduce CPU stack use and improve maintainability. 3426193267Sjkim(Mikhail Kouzmich) 3427167802Sjkim 3428193267SjkimAcpiGetHandle: Fix for parameter validation to detect invalid combinations 3429193267Sjkimof prefix handle and pathname. BZ 478 3430167802Sjkim 3431193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3432193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3433193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3434193267Sjkima much larger code and data size. 3435167802Sjkim 3436167802Sjkim Previous Release: 3437167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 3438167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 3439167802Sjkim Current Release: 3440167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 3441167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 3442167802Sjkim 3443167802Sjkim2) iASL Compiler/Disassembler and Tools: 3444167802Sjkim 3445193267SjkimPorted the -g option (get local ACPI tables) to the new ACPICA Table Manager 3446193267Sjkimto restore original behavior. 3447167802Sjkim 3448167802Sjkim---------------------------------------- 3449167802Sjkim27 September 2006. Summary of changes for version 20060927: 3450167802Sjkim 3451167802Sjkim1) ACPI CA Core Subsystem: 3452167802Sjkim 3453193267SjkimRemoved the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. 3454193267SjkimThese functions now use a spinlock for mutual exclusion and the interrupt 3455193267Sjkimlevel indication flag is not needed. 3456167802Sjkim 3457193267SjkimFixed a problem with the Global Lock where the lock could appear to be 3458193267Sjkimobtained before it is actually obtained. The global lock semaphore was 3459193267Sjkiminadvertently created with one unit instead of zero units. (BZ 464) Fiodor 3460193267SjkimSuietov. 3461167802Sjkim 3462193267SjkimFixed a possible memory leak and fault in AcpiExResolveObjectToValue during 3463193267Sjkima read from a buffer or region field. (BZ 458) Fiodor Suietov. 3464167802Sjkim 3465193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3466193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3467193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3468193267Sjkima much larger code and data size. 3469167802Sjkim 3470167802Sjkim Previous Release: 3471167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 3472167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 3473167802Sjkim Current Release: 3474167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 3475167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 3476167802Sjkim 3477167802Sjkim 3478167802Sjkim2) iASL Compiler/Disassembler and Tools: 3479167802Sjkim 3480193267SjkimFixed a compilation problem with the pre-defined Resource Descriptor field 3481193267Sjkimnames where an "object does not exist" error could be incorrectly generated 3482193267Sjkimif the parent ResourceTemplate pathname places the template within a 3483193267Sjkimdifferent namespace scope than the current scope. (BZ 7212) 3484167802Sjkim 3485193267SjkimFixed a problem where the compiler could hang after syntax errors detected 3486193267Sjkimin an ElseIf construct. (BZ 453) 3487167802Sjkim 3488193267SjkimFixed a problem with the AmlFilename parameter to the DefinitionBlock() 3489193267Sjkimoperator. An incorrect output filename was produced when this parameter was 3490193267Sjkima null string (""). Now, the original input filename is used as the AML 3491193267Sjkimoutput filename, with an ".aml" extension. 3492167802Sjkim 3493193267SjkimImplemented a generic batch command mode for the AcpiExec utility (execute 3494193267Sjkimany AML debugger command) (Valery Podrezov). 3495167802Sjkim 3496167802Sjkim---------------------------------------- 3497167802Sjkim12 September 2006. Summary of changes for version 20060912: 3498167802Sjkim 3499167802Sjkim1) ACPI CA Core Subsystem: 3500167802Sjkim 3501193267SjkimEnhanced the implementation of the "serialized mode" of the interpreter 3502193267Sjkim(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 3503193267Sjkimspecified, instead of creating a serialization semaphore per control method, 3504193267Sjkimthe interpreter lock is simply no longer released before a blocking 3505193267Sjkimoperation during control method execution. This effectively makes the AML 3506193267SjkimInterpreter single-threaded. The overhead of a semaphore per-method is 3507193267Sjkimeliminated. 3508167802Sjkim 3509193267SjkimFixed a regression where an error was no longer emitted if a control method 3510193267Sjkimattempts to create 2 objects of the same name. This once again returns 3511193267SjkimAE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that 3512193267Sjkimwill dynamically serialize the control method to possible prevent future 3513193267Sjkimerrors. (BZ 440) 3514167802Sjkim 3515193267SjkimIntegrated a fix for a problem with PCI Express HID detection in the PCI 3516193267SjkimConfig Space setup procedure. (BZ 7145) 3517167802Sjkim 3518193267SjkimMoved all FADT-related functions to a new file, tbfadt.c. Eliminated the 3519193267SjkimAcpiHwInitialize function - the FADT registers are now validated when the 3520193267Sjkimtable is loaded. 3521167802Sjkim 3522193267SjkimAdded two new warnings during FADT verification - 1) if the FADT is larger 3523193267Sjkimthan the largest known FADT version, and 2) if there is a mismatch between a 3524193267Sjkim32-bit block address and the 64-bit X counterpart (when both are non-zero.) 3525167802Sjkim 3526193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3527193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3528193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3529193267Sjkima much larger code and data size. 3530167802Sjkim 3531167802Sjkim Previous Release: 3532167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 3533167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 3534167802Sjkim Current Release: 3535167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 3536167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 3537167802Sjkim 3538167802Sjkim 3539167802Sjkim2) iASL Compiler/Disassembler and Tools: 3540167802Sjkim 3541193267SjkimFixed a problem with the implementation of the Switch() operator where the 3542193267Sjkimtemporary variable was declared too close to the actual Switch, instead of 3543193267Sjkimat method level. This could cause a problem if the Switch() operator is 3544193267Sjkimwithin a while loop, causing an error on the second iteration. (BZ 460) 3545167802Sjkim 3546193267SjkimDisassembler - fix for error emitted for unknown type for target of scope 3547193267Sjkimoperator. Now, ignore it and continue. 3548167802Sjkim 3549193267SjkimDisassembly of an FADT now verifies the input FADT and reports any errors 3550193267Sjkimfound. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs. 3551167802Sjkim 3552193267SjkimDisassembly of raw data buffers with byte initialization data now prefixes 3553193267Sjkimeach output line with the current buffer offset. 3554167802Sjkim 3555193267SjkimDisassembly of ASF! table now includes all variable-length data fields at 3556193267Sjkimthe end of some of the subtables. 3557167802Sjkim 3558193267SjkimThe disassembler now emits a comment if a buffer appears to be a 3559193267SjkimResourceTemplate, but cannot be disassembled as such because the EndTag does 3560193267Sjkimnot appear at the very end of the buffer. 3561167802Sjkim 3562193267SjkimAcpiExec - Added the "-t" command line option to enable the serialized mode 3563193267Sjkimof the AML interpreter. 3564167802Sjkim 3565167802Sjkim---------------------------------------- 3566167802Sjkim31 August 2006. Summary of changes for version 20060831: 3567167802Sjkim 3568167802Sjkim1) ACPI CA Core Subsystem: 3569167802Sjkim 3570167802SjkimMiscellaneous fixes for the Table Manager: 3571193267Sjkim- Correctly initialize internal common FADT for all 64-bit "X" fields 3572167802Sjkim- Fixed a couple table mapping issues during table load 3573167802Sjkim- Fixed a couple alignment issues for IA64 3574167802Sjkim- Initialize input array to zero in AcpiInitializeTables 3575193267Sjkim- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader, 3576193267SjkimAcpiGetTableByIndex 3577167802Sjkim 3578193267SjkimChange for GPE support: when a "wake" GPE is received, all wake GPEs are now 3579193267Sjkimimmediately disabled to prevent the waking GPE from firing again and to 3580193267Sjkimprevent other wake GPEs from interrupting the wake process. 3581167802Sjkim 3582193267SjkimAdded the AcpiGpeCount global that tracks the number of processed GPEs, to 3583193267Sjkimbe used for debugging systems with a large number of ACPI interrupts. 3584167802Sjkim 3585193267SjkimImplemented support for the "DMAR" ACPI table (DMA Redirection Table) in 3586193267Sjkimboth the ACPICA headers and the disassembler. 3587167802Sjkim 3588193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3589193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3590193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3591193267Sjkima much larger code and data size. 3592167802Sjkim 3593167802Sjkim Previous Release: 3594167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 3595167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 3596167802Sjkim Current Release: 3597167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 3598167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 3599167802Sjkim 3600167802Sjkim 3601167802Sjkim2) iASL Compiler/Disassembler and Tools: 3602167802Sjkim 3603167802SjkimDisassembler support for the DMAR ACPI table. 3604167802Sjkim 3605167802Sjkim---------------------------------------- 3606167802Sjkim23 August 2006. Summary of changes for version 20060823: 3607167802Sjkim 3608167802Sjkim1) ACPI CA Core Subsystem: 3609167802Sjkim 3610193267SjkimThe Table Manager component has been completely redesigned and 3611193267Sjkimreimplemented. The new design is much simpler, and reduces the overall code 3612193267Sjkimand data size of the kernel-resident ACPICA by approximately 5%. Also, it is 3613193267Sjkimnow possible to obtain the ACPI tables very early during kernel 3614193267Sjkiminitialization, even before dynamic memory management is initialized. 3615193267Sjkim(Alexey Starikovskiy, Fiodor Suietov, Bob Moore) 3616167802Sjkim 3617167802SjkimObsolete ACPICA interfaces: 3618167802Sjkim 3619193267Sjkim- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init 3620193267Sjkimtime). 3621167802Sjkim- AcpiLoadTable: Not needed. 3622167802Sjkim- AcpiUnloadTable: Not needed. 3623167802Sjkim 3624167802SjkimNew ACPICA interfaces: 3625167802Sjkim 3626193267Sjkim- AcpiInitializeTables: Must be called before the table manager can be used. 3627193267Sjkim- AcpiReallocateRootTable: Used to transfer the root table to dynamically 3628193267Sjkimallocated memory after it becomes available. 3629193267Sjkim- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables 3630193267Sjkimin the RSDT/XSDT. 3631167802Sjkim 3632167802SjkimOther ACPICA changes: 3633167802Sjkim 3634193267Sjkim- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use 3635193267SjkimAcpiOsUnmapMemory to free this mapping. 3636193267Sjkim- AcpiGetTable returns the actual mapped table. The mapping is managed 3637193267Sjkiminternally and must not be deleted by the caller. Use of this interface 3638193267Sjkimcauses no additional dynamic memory allocation. 3639193267Sjkim- AcpiFindRootPointer: Support for physical addressing has been eliminated, 3640193267Sjkimit appeared to be unused. 3641193267Sjkim- The interface to AcpiOsMapMemory has changed to be consistent with the 3642193267Sjkimother allocation interfaces. 3643193267Sjkim- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary 3644193267Sjkimparameters. 3645193267Sjkim- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64- 3646193267Sjkimbit platforms. Was previously 64 bits on all platforms. 3647193267Sjkim- The interface to the ACPI Global Lock acquire/release macros have changed 3648193267Sjkimslightly since ACPICA no longer keeps a local copy of the FACS with a 3649193267Sjkimconstructed pointer to the actual global lock. 3650167802Sjkim 3651167802SjkimPorting to the new table manager: 3652167802Sjkim 3653193267Sjkim- AcpiInitializeTables: Must be called once, and can be called anytime 3654193267Sjkimduring the OS initialization process. It allows the host to specify an area 3655193267Sjkimof memory to be used to store the internal version of the RSDT/XSDT (root 3656193267Sjkimtable). This allows the host to access ACPI tables before memory management 3657193267Sjkimis initialized and running. 3658193267Sjkim- AcpiReallocateRootTable: Can be called after memory management is running 3659193267Sjkimto copy the root table to a dynamically allocated array, freeing up the 3660193267Sjkimscratch memory specified in the call to AcpiInitializeTables. 3661193267Sjkim- AcpiSubsystemInitialize: This existing interface is independent of the 3662193267SjkimTable Manager, and does not have to be called before the Table Manager can 3663193267Sjkimbe used, it only must be called before the rest of ACPICA can be used. 3664193267Sjkim- ACPI Tables: Some changes have been made to the names and structure of the 3665193267Sjkimactbl.h and actbl1.h header files and may require changes to existing code. 3666193267SjkimFor example, bitfields have been completely removed because of their lack of 3667193267Sjkimportability across C compilers. 3668193267Sjkim- Update interfaces to the Global Lock acquire/release macros if local 3669193267Sjkimversions are used. (see acwin.h) 3670167802Sjkim 3671167802SjkimObsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c 3672167802Sjkim 3673167802SjkimNew files: tbfind.c 3674167802Sjkim 3675193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3676193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3677193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3678193267Sjkima much larger code and data size. 3679167802Sjkim 3680167802Sjkim Previous Release: 3681167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 3682167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 3683167802Sjkim Current Release: 3684167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 3685167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 3686167802Sjkim 3687167802Sjkim 3688167802Sjkim2) iASL Compiler/Disassembler and Tools: 3689167802Sjkim 3690167802SjkimNo changes for this release. 3691167802Sjkim 3692167802Sjkim---------------------------------------- 3693167802Sjkim21 July 2006. Summary of changes for version 20060721: 3694167802Sjkim 3695167802Sjkim1) ACPI CA Core Subsystem: 3696167802Sjkim 3697193267SjkimThe full source code for the ASL test suite used to validate the iASL 3698193267Sjkimcompiler and the ACPICA core subsystem is being released with the ACPICA 3699193267Sjkimsource for the first time. The source is contained in a separate package and 3700193267Sjkimconsists of over 1100 files that exercise all ASL/AML operators. The package 3701193267Sjkimshould appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor 3702167802SjkimSuietov) 3703167802Sjkim 3704193267SjkimCompleted a new design and implementation for support of the ACPI Global 3705193267SjkimLock. On the OS side, the global lock is now treated as a standard AML 3706193267Sjkimmutex. Previously, multiple OS threads could "acquire" the global lock 3707193267Sjkimsimultaneously. However, this could cause the BIOS to be starved out of the 3708193267Sjkimlock - especially in cases such as the Embedded Controller driver where 3709193267Sjkimthere is a tight coupling between the OS and the BIOS. 3710167802Sjkim 3711193267SjkimImplemented an optimization for the ACPI Global Lock interrupt mechanism. 3712193267SjkimThe Global Lock interrupt handler no longer queues the execution of a 3713193267Sjkimseparate thread to signal the global lock semaphore. Instead, the semaphore 3714193267Sjkimis signaled directly from the interrupt handler. 3715167802Sjkim 3716193267SjkimImplemented support within the AML interpreter for package objects that 3717193267Sjkimcontain a larger AML length (package list length) than the package element 3718193267Sjkimcount. In this case, the length of the package is truncated to match the 3719193267Sjkimpackage element count. Some BIOS code apparently modifies the package length 3720193267Sjkimon the fly, and this change supports this behavior. Provides compatibility 3721193267Sjkimwith the MS AML interpreter. (With assistance from Fiodor Suietov) 3722167802Sjkim 3723193267SjkimImplemented a temporary fix for the BankValue parameter of a Bank Field to 3724193267Sjkimsupport all constant values, now including the Zero and One opcodes. 3725193267SjkimEvaluation of this parameter must eventually be converted to a full TermArg 3726193267Sjkimevaluation. A not-implemented error is now returned (temporarily) for non- 3727193267Sjkimconstant values for this parameter. 3728167802Sjkim 3729167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3730193267Sjkim- Fix for premature object deletion after CopyObject on Operation Region (BZ 3731193267Sjkim350) 3732167802Sjkim 3733193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3734193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3735193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3736193267Sjkima much larger code and data size. 3737167802Sjkim 3738167802Sjkim Previous Release: 3739167802Sjkim Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total 3740167802Sjkim Debug Version: 160.9K Code, 65.1K Data, 226.0K Total 3741167802Sjkim Current Release: 3742167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 3743167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 3744167802Sjkim 3745167802Sjkim 3746167802Sjkim2) iASL Compiler/Disassembler and Tools: 3747167802Sjkim 3748167802SjkimNo changes for this release. 3749167802Sjkim 3750167802Sjkim---------------------------------------- 3751167802Sjkim07 July 2006. Summary of changes for version 20060707: 3752167802Sjkim 3753167802Sjkim1) ACPI CA Core Subsystem: 3754167802Sjkim 3755193267SjkimAdded the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers 3756193267Sjkimthat do not allow the initialization of address pointers within packed 3757193267Sjkimstructures - even though the hardware itself may support misaligned 3758193267Sjkimtransfers. Some of the debug data structures are packed by default to 3759193267Sjkimminimize size. 3760167802Sjkim 3761193267SjkimAdded an error message for the case where AcpiOsGetThreadId() returns zero. 3762193267SjkimA non-zero value is required by the core ACPICA code to ensure the proper 3763193267Sjkimoperation of AML mutexes and recursive control methods. 3764167802Sjkim 3765193267SjkimThe DSDT is now the only ACPI table that determines whether the AML 3766193267Sjkiminterpreter is in 32-bit or 64-bit mode. Not really a functional change, but 3767193267Sjkimthe hooks for per-table 32/64 switching have been removed from the code. A 3768193267Sjkimclarification to the ACPI specification is forthcoming in ACPI 3.0B. 3769167802Sjkim 3770193267SjkimFixed a possible leak of an OwnerID in the error path of 3771193267SjkimAcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID 3772193267Sjkimdeletion to a single place in AcpiTbUninstallTable to correct possible leaks 3773193267Sjkimwhen using the AcpiTbDeleteTablesByType interface (with assistance from 3774193267SjkimLance Ortiz.) 3775167802Sjkim 3776193267SjkimFixed a problem with Serialized control methods where the semaphore 3777193267Sjkimassociated with the method could be over-signaled after multiple method 3778193267Sjkiminvocations. 3779167802Sjkim 3780193267SjkimFixed two issues with the locking of the internal namespace data structure. 3781193267SjkimBoth the Unload() operator and AcpiUnloadTable interface now lock the 3782193267Sjkimnamespace during the namespace deletion associated with the table unload 3783193267Sjkim(with assistance from Linn Crosetto.) 3784167802Sjkim 3785167802SjkimFixed problem reports (Valery Podrezov) integrated: 3786193267Sjkim- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426) 3787167802Sjkim 3788167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3789167802Sjkim- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) 3790193267Sjkim- On Address Space handler deletion, needless deactivation call (BZ 374) 3791193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) 3792193267Sjkim- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone 3793193267Sjkim(BZ 376) 3794193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) 3795167802Sjkim- Minimum Length of RSDT should be validated (BZ 379) 3796193267Sjkim- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no 3797193267SjkimHandler (BZ (380) 3798193267Sjkim- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded 3799193267Sjkim(BZ 381) 3800167802Sjkim 3801193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3802193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3803193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3804193267Sjkima much larger code and data size. 3805167802Sjkim 3806167802Sjkim Previous Release: 3807167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 3808167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 3809167802Sjkim Current Release: 3810167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 3811167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 3812167802Sjkim 3813167802Sjkim 3814167802Sjkim2) iASL Compiler/Disassembler and Tools: 3815167802Sjkim 3816167802SjkimFixed problem reports: 3817193267SjkimCompiler segfault when ASL contains a long (>1024) String declaration (BZ 3818193267Sjkim436) 3819167802Sjkim 3820167802Sjkim---------------------------------------- 3821167802Sjkim23 June 2006. Summary of changes for version 20060623: 3822167802Sjkim 3823167802Sjkim1) ACPI CA Core Subsystem: 3824167802Sjkim 3825193267SjkimImplemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This 3826193267Sjkimallows the type to be customized to the host OS for improved efficiency 3827193267Sjkim(since a spinlock is usually a very small object.) 3828167802Sjkim 3829193267SjkimImplemented support for "ignored" bits in the ACPI registers. According to 3830193267Sjkimthe ACPI specification, these bits should be preserved when writing the 3831193267Sjkimregisters via a read/modify/write cycle. There are 3 bits preserved in this 3832193267Sjkimmanner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. 3833167802Sjkim 3834193267SjkimImplemented the initial deployment of new OSL mutex interfaces. Since some 3835193267Sjkimhost operating systems have separate mutex and semaphore objects, this 3836193267Sjkimfeature was requested. The base code now uses mutexes (and the new mutex 3837193267Sjkiminterfaces) wherever a binary semaphore was used previously. However, for 3838193267Sjkimthe current release, the mutex interfaces are defined as macros to map them 3839193267Sjkimto the existing semaphore interfaces. Therefore, no OSL changes are required 3840193267Sjkimat this time. (See acpiosxf.h) 3841167802Sjkim 3842193267SjkimFixed several problems with the support for the control method SyncLevel 3843193267Sjkimparameter. The SyncLevel now works according to the ACPI specification and 3844193267Sjkimin concert with the Mutex SyncLevel parameter, since the current SyncLevel 3845193267Sjkimis a property of the executing thread. Mutual exclusion for control methods 3846193267Sjkimis now implemented with a mutex instead of a semaphore. 3847167802Sjkim 3848193267SjkimFixed three instances of the use of the C shift operator in the bitfield 3849193267Sjkimsupport code (exfldio.c) to avoid the use of a shift value larger than the 3850193267Sjkimtarget data width. The behavior of C compilers is undefined in this case and 3851193267Sjkimcan cause unpredictable results, and therefore the case must be detected and 3852193267Sjkimavoided. (Fiodor Suietov) 3853167802Sjkim 3854193267SjkimAdded an info message whenever an SSDT or OEM table is loaded dynamically 3855193267Sjkimvia the Load() or LoadTable() ASL operators. This should improve debugging 3856193267Sjkimcapability since it will show exactly what tables have been loaded (beyond 3857193267Sjkimthe tables present in the RSDT/XSDT.) 3858167802Sjkim 3859193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3860193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3861193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3862193267Sjkima much larger code and data size. 3863167802Sjkim 3864167802Sjkim Previous Release: 3865167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 3866167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 3867167802Sjkim Current Release: 3868167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 3869167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 3870167802Sjkim 3871167802Sjkim 3872167802Sjkim2) iASL Compiler/Disassembler and Tools: 3873167802Sjkim 3874167802SjkimNo changes for this release. 3875167802Sjkim 3876167802Sjkim---------------------------------------- 3877167802Sjkim08 June 2006. Summary of changes for version 20060608: 3878167802Sjkim 3879167802Sjkim1) ACPI CA Core Subsystem: 3880167802Sjkim 3881193267SjkimConverted the locking mutex used for the ACPI hardware to a spinlock. This 3882193267Sjkimchange should eliminate all problems caused by attempting to acquire a 3883193267Sjkimsemaphore at interrupt level, and it means that all ACPICA external 3884193267Sjkiminterfaces that directly access the ACPI hardware can be safely called from 3885193267Sjkiminterrupt level. OSL code that implements the semaphore interfaces should be 3886193267Sjkimable to eliminate any workarounds for being called at interrupt level. 3887167802Sjkim 3888193267SjkimFixed a regression introduced in 20060526 where the ACPI device 3889193267Sjkiminitialization could be prematurely aborted with an AE_NOT_FOUND if a device 3890193267Sjkimdid not have an optional _INI method. 3891167802Sjkim 3892193267SjkimFixed an IndexField issue where a write to the Data Register should be 3893193267Sjkimlimited in size to the AccessSize (width) of the IndexField itself. (BZ 433, 3894193267SjkimFiodor Suietov) 3895167802Sjkim 3896167802SjkimFixed problem reports (Valery Podrezov) integrated: 3897193267Sjkim- Allow store of ThermalZone objects to Debug object (BZ 5369/5370) 3898167802Sjkim 3899167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3900193267Sjkim- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364) 3901167802Sjkim 3902193267SjkimRemoved four global mutexes that were obsolete and were no longer being 3903193267Sjkimused. 3904167802Sjkim 3905193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3906193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3907193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3908193267Sjkima much larger code and data size. 3909167802Sjkim 3910167802Sjkim Previous Release: 3911167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3912167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3913167802Sjkim Current Release: 3914167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 3915167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 3916167802Sjkim 3917167802Sjkim 3918167802Sjkim2) iASL Compiler/Disassembler and Tools: 3919167802Sjkim 3920193267SjkimFixed a fault when using -g option (get tables from registry) on Windows 3921193267Sjkimmachines. 3922167802Sjkim 3923167802SjkimFixed problem reports integrated: 3924193267Sjkim- Generate error if CreateField NumBits parameter is zero. (BZ 405) 3925193267Sjkim- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor 3926193267SjkimSuietov) 3927167802Sjkim- Global table revision override (-r) is ignored (BZ 413) 3928167802Sjkim 3929167802Sjkim---------------------------------------- 3930167802Sjkim26 May 2006. Summary of changes for version 20060526: 3931167802Sjkim 3932167802Sjkim1) ACPI CA Core Subsystem: 3933167802Sjkim 3934193267SjkimRestructured, flattened, and simplified the internal interfaces for 3935193267Sjkimnamespace object evaluation - resulting in smaller code, less CPU stack use, 3936193267Sjkimand fewer interfaces. (With assistance from Mikhail Kouzmich) 3937167802Sjkim 3938193267SjkimFixed a problem with the CopyObject operator where the first parameter was 3939193267Sjkimnot typed correctly for the parser, interpreter, compiler, and disassembler. 3940193267SjkimCaused various errors and unexpected behavior. 3941167802Sjkim 3942193267SjkimFixed a problem where a ShiftLeft or ShiftRight of more than 64 bits 3943193267Sjkimproduced incorrect results with some C compilers. Since the behavior of C 3944193267Sjkimcompilers when the shift value is larger than the datatype width is 3945193267Sjkimapparently not well defined, the interpreter now detects this condition and 3946193267Sjkimsimply returns zero as expected in all such cases. (BZ 395) 3947167802Sjkim 3948167802SjkimFixed problem reports (Valery Podrezov) integrated: 3949193267Sjkim- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329) 3950193267Sjkim- Allow interpreter to handle nested method declarations (BZ 5361) 3951167802Sjkim 3952167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3953193267Sjkim- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355) 3954193267Sjkim- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356) 3955193267Sjkim- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357) 3956193267Sjkim- Resource Manager should return AE_TYPE for non-device objects (BZ 358) 3957167802Sjkim- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) 3958193267Sjkim- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360) 3959167802Sjkim- Incomplete cleanup branch in AcpiPsParseAml (BZ 361) 3960167802Sjkim- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362) 3961193267Sjkim- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) 3962193267Sjkim- Status of the Global Initialization Handler call not used (BZ 366) 3963193267Sjkim- Incorrect object parameter to Global Initialization Handler (BZ 367) 3964167802Sjkim 3965193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3966193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3967193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3968193267Sjkima much larger code and data size. 3969167802Sjkim 3970167802Sjkim Previous Release: 3971167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3972167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3973167802Sjkim Current Release: 3974167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3975167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3976167802Sjkim 3977167802Sjkim 3978167802Sjkim2) iASL Compiler/Disassembler and Tools: 3979167802Sjkim 3980193267SjkimModified the parser to allow the names IO, DMA, and IRQ to be used as 3981193267Sjkimnamespace identifiers with no collision with existing resource descriptor 3982193267Sjkimmacro names. This provides compatibility with other ASL compilers and is 3983193267Sjkimmost useful for disassembly/recompilation of existing tables without parse 3984167802Sjkimerrors. (With assistance from Thomas Renninger) 3985167802Sjkim 3986193267SjkimDisassembler: fixed an incorrect disassembly problem with the 3987193267SjkimDataTableRegion and CopyObject operators. Fixed a possible fault during 3988193267Sjkimdisassembly of some Alias operators. 3989167802Sjkim 3990167802Sjkim---------------------------------------- 3991167802Sjkim12 May 2006. Summary of changes for version 20060512: 3992167802Sjkim 3993167802Sjkim1) ACPI CA Core Subsystem: 3994167802Sjkim 3995193267SjkimReplaced the AcpiOsQueueForExecution interface with a new interface named 3996193267SjkimAcpiOsExecute. The major difference is that the new interface does not have 3997193267Sjkima Priority parameter, this appeared to be useless and has been replaced by a 3998193267SjkimType parameter. The Type tells the host what type of execution is being 3999193267Sjkimrequested, such as global lock handler, notify handler, GPE handler, etc. 4000193267SjkimThis allows the host to queue and execute the request as appropriate for the 4001193267Sjkimrequest type, possibly using different work queues and different priorities 4002193267Sjkimfor the various request types. This enables fixes for multithreading 4003193267Sjkimdeadlock problems such as BZ #5534, and will require changes to all existing 4004193267SjkimOS interface layers. (Alexey Starikovskiy and Bob Moore) 4005167802Sjkim 4006193267SjkimFixed a possible memory leak associated with the support for the so-called 4007193267Sjkim"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor 4008193267SjkimSuietov) 4009167802Sjkim 4010193267SjkimFixed a problem with the Load() operator where a table load from an 4011193267Sjkimoperation region could overwrite an internal table buffer by up to 7 bytes 4012193267Sjkimand cause alignment faults on IPF systems. (With assistance from Luming Yu) 4013167802Sjkim 4014193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 4015193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 4016193267Sjkimdebug version of the code includes the debug output trace mechanism and has 4017193267Sjkima much larger code and data size. 4018167802Sjkim 4019167802Sjkim Previous Release: 4020167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 4021167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 4022167802Sjkim Current Release: 4023167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 4024167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 4025167802Sjkim 4026167802Sjkim 4027167802Sjkim 4028167802Sjkim2) iASL Compiler/Disassembler and Tools: 4029167802Sjkim 4030193267SjkimDisassembler: Implemented support to cross reference the internal namespace 4031193267Sjkimand automatically generate ASL External() statements for symbols not defined 4032193267Sjkimwithin the current table being disassembled. This will simplify the 4033193267Sjkimdisassembly and recompilation of interdependent tables such as SSDTs since 4034193267Sjkimthese statements will no longer have to be added manually. 4035167802Sjkim 4036193267SjkimDisassembler: Implemented experimental support to automatically detect 4037193267Sjkiminvocations of external control methods and generate appropriate External() 4038193267Sjkimstatements. This is problematic because the AML cannot be correctly parsed 4039193267Sjkimuntil the number of arguments for each control method is known. Currently, 4040193267Sjkimstandalone method invocations and invocations as the source operand of a 4041193267SjkimStore() statement are supported. 4042167802Sjkim 4043193267SjkimDisassembler: Implemented support for the ASL pseudo-operators LNotEqual, 4044193267SjkimLLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()), 4045193267SjkimLNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code 4046193267Sjkimmore readable and likely closer to the original ASL source. 4047167802Sjkim 4048167802Sjkim---------------------------------------- 4049167802Sjkim21 April 2006. Summary of changes for version 20060421: 4050167802Sjkim 4051167802Sjkim1) ACPI CA Core Subsystem: 4052167802Sjkim 4053193267SjkimRemoved a device initialization optimization introduced in 20051216 where 4054193267Sjkimthe _STA method was not run unless an _INI was also present for the same 4055193267Sjkimdevice. This optimization could cause problems because it could allow _INI 4056193267Sjkimmethods to be run within a not-present device subtree. (If a not-present 4057193267Sjkimdevice had no _INI, _STA would not be run, the not-present status would not 4058193267Sjkimbe discovered, and the children of the device would be incorrectly 4059167802Sjkimtraversed.) 4060167802Sjkim 4061193267SjkimImplemented a new _STA optimization where namespace subtrees that do not 4062193267Sjkimcontain _INI are identified and ignored during device initialization. 4063193267SjkimSelectively running _STA can significantly improve boot time on large 4064193267Sjkimmachines (with assistance from Len Brown.) 4065167802Sjkim 4066193267SjkimImplemented support for the device initialization case where the returned 4067193267Sjkim_STA flags indicate a device not-present but functioning. In this case, _INI 4068193267Sjkimis not run, but the device children are examined for presence, as per the 4069193267SjkimACPI specification. 4070167802Sjkim 4071193267SjkimImplemented an additional change to the IndexField support in order to 4072193267Sjkimconform to MS behavior. The value written to the Index Register is not 4073193267Sjkimsimply a byte offset, it is a byte offset in units of the access width of 4074193267Sjkimthe parent Index Field. (Fiodor Suietov) 4075167802Sjkim 4076193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateAddress. This 4077193267Sjkiminterface is called during the creation of all AML operation regions, and 4078193267Sjkimallows the host OS to exert control over what addresses it will allow the 4079193267SjkimAML code to access. Operation Regions whose addresses are disallowed will 4080193267Sjkimcause a runtime exception when they are actually accessed (will not affect 4081193267Sjkimor abort table loading.) See oswinxf or osunixxf for an example 4082167802Sjkimimplementation. 4083167802Sjkim 4084193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateInterface. This 4085193267Sjkiminterface allows the host OS to match the various "optional" 4086193267Sjkiminterface/behavior strings for the _OSI predefined control method as 4087193267Sjkimappropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf 4088193267Sjkimfor an example implementation. 4089167802Sjkim 4090193267SjkimRestructured and corrected various problems in the exception handling code 4091193267Sjkimpaths within DsCallControlMethod and DsTerminateControlMethod in dsmethod 4092193267Sjkim(with assistance from Takayoshi Kochi.) 4093167802Sjkim 4094193267SjkimModified the Linux source converter to ignore quoted string literals while 4095193267Sjkimconverting identifiers from mixed to lower case. This will correct problems 4096193267Sjkimwith the disassembler and other areas where such strings must not be 4097193267Sjkimmodified. 4098167802Sjkim 4099193267SjkimThe ACPI_FUNCTION_* macros no longer require quotes around the function 4100193267Sjkimname. This allows the Linux source converter to convert the names, now that 4101193267Sjkimthe converter ignores quoted strings. 4102167802Sjkim 4103193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 4104193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 4105193267Sjkimdebug version of the code includes the debug output trace mechanism and has 4106193267Sjkima much larger code and data size. 4107193267Sjkim 4108167802Sjkim Previous Release: 4109167802Sjkim 4110167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 4111167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 4112167802Sjkim Current Release: 4113167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 4114167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 4115167802Sjkim 4116167802Sjkim 4117167802Sjkim2) iASL Compiler/Disassembler and Tools: 4118167802Sjkim 4119193267SjkimImplemented 3 new warnings for iASL, and implemented multiple warning levels 4120193267Sjkim(w2 flag). 4121167802Sjkim 4122193267Sjkim1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not 4123193267SjkimWAIT_FOREVER (0xFFFF) and the code does not examine the return value to 4124193267Sjkimcheck for the possible timeout, a warning is issued. 4125167802Sjkim 4126193267Sjkim2) Useless operators: If an ASL operator does not specify an optional target 4127193267Sjkimoperand and it also does not use the function return value from the 4128193267Sjkimoperator, a warning is issued since the operator effectively does nothing. 4129167802Sjkim 4130193267Sjkim3) Unreferenced objects: If a namespace object is created, but never 4131193267Sjkimreferenced, a warning is issued. This is a warning level 2 since there are 4132193267Sjkimcases where this is ok, such as when a secondary table is loaded that uses 4133193267Sjkimthe unreferenced objects. Even so, care is taken to only flag objects that 4134193267Sjkimdon't look like they will ever be used. For example, the reserved methods 4135193267Sjkim(starting with an underscore) are usually not referenced because it is 4136193267Sjkimexpected that the OS will invoke them. 4137167802Sjkim 4138167802Sjkim---------------------------------------- 4139167802Sjkim31 March 2006. Summary of changes for version 20060331: 4140167802Sjkim 4141167802Sjkim1) ACPI CA Core Subsystem: 4142167802Sjkim 4143193267SjkimImplemented header file support for the following additional ACPI tables: 4144193267SjkimASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, 4145193267Sjkimall current and known ACPI tables are now defined in the ACPICA headers and 4146193267Sjkimare available for use by device drivers and other software. 4147167802Sjkim 4148193267SjkimImplemented support to allow tables that contain ACPI names with invalid 4149193267Sjkimcharacters to be loaded. Previously, this would cause the table load to 4150193267Sjkimfail, but since there are several known cases of such tables on existing 4151193267Sjkimmachines, this change was made to enable ACPI support for them. Also, this 4152193267Sjkimmatches the behavior of the Microsoft ACPI implementation. 4153167802Sjkim 4154193267SjkimFixed a couple regressions introduced during the memory optimization in the 4155193267Sjkim20060317 release. The namespace node definition required additional 4156193267Sjkimreorganization and an internal datatype that had been changed to 8-bit was 4157193267Sjkimrestored to 32-bit. (Valery Podrezov) 4158167802Sjkim 4159193267SjkimFixed a problem where a null pointer passed to AcpiUtDeleteGenericState 4160193267Sjkimcould be passed through to AcpiOsReleaseObject which is unexpected. Such 4161193267Sjkimnull pointers are now trapped and ignored, matching the behavior of the 4162193267Sjkimprevious implementation before the deployment of AcpiOsReleaseObject. 4163167802Sjkim(Valery Podrezov, Fiodor Suietov) 4164167802Sjkim 4165193267SjkimFixed a memory mapping leak during the deletion of a SystemMemory operation 4166193267Sjkimregion where a cached memory mapping was not deleted. This became a 4167193267Sjkimnoticeable problem for operation regions that are defined within frequently 4168193267Sjkimused control methods. (Dana Meyers) 4169167802Sjkim 4170193267SjkimReorganized the ACPI table header files into two main files: one for the 4171193267SjkimACPI tables consumed by the ACPICA core, and another for the miscellaneous 4172193267SjkimACPI tables that are consumed by the drivers and other software. The various 4173193267SjkimFADT definitions were merged into one common section and three different 4174193267Sjkimtables (ACPI 1.0, 1.0+, and 2.0) 4175167802Sjkim 4176193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 4177193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 4178193267Sjkimdebug version of the code includes the debug output trace mechanism and has 4179193267Sjkima much larger code and data size. 4180167802Sjkim 4181167802Sjkim Previous Release: 4182167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 4183167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 4184167802Sjkim Current Release: 4185167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 4186167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 4187167802Sjkim 4188167802Sjkim 4189167802Sjkim2) iASL Compiler/Disassembler and Tools: 4190167802Sjkim 4191193267SjkimDisassembler: Implemented support to decode and format all non-AML ACPI 4192193267Sjkimtables (tables other than DSDTs and SSDTs.) This includes the new tables 4193193267Sjkimadded to the ACPICA headers, therefore all current and known ACPI tables are 4194193267Sjkimsupported. 4195167802Sjkim 4196193267SjkimDisassembler: The change to allow ACPI names with invalid characters also 4197193267Sjkimenables the disassembly of such tables. Invalid characters within names are 4198193267Sjkimchanged to '*' to make the name printable; the iASL compiler will still 4199193267Sjkimgenerate an error for such names, however, since this is an invalid ACPI 4200193267Sjkimcharacter. 4201167802Sjkim 4202193267SjkimImplemented an option for AcpiXtract (-a) to extract all tables found in the 4203193267Sjkiminput file. The default invocation extracts only the DSDTs and SSDTs. 4204167802Sjkim 4205193267SjkimFixed a couple of gcc generation issues for iASL and AcpiExec and added a 4206193267Sjkimmakefile for the AcpiXtract utility. 4207167802Sjkim 4208167802Sjkim---------------------------------------- 4209167802Sjkim17 March 2006. Summary of changes for version 20060317: 4210167802Sjkim 4211167802Sjkim1) ACPI CA Core Subsystem: 4212167802Sjkim 4213193267SjkimImplemented the use of a cache object for all internal namespace nodes. 4214193267SjkimSince there are about 1000 static nodes in a typical system, this will 4215193267Sjkimdecrease memory use for cache implementations that minimize per-allocation 4216193267Sjkimoverhead (such as a slab allocator.) 4217167802Sjkim 4218193267SjkimRemoved the reference count mechanism for internal namespace nodes, since it 4219193267Sjkimwas deemed unnecessary. This reduces the size of each namespace node by 4220193267Sjkimabout 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, 4221193267Sjkimand 32 bytes for the 64-bit case. 4222167802Sjkim 4223193267SjkimOptimized several internal data structures to reduce object size on 64-bit 4224193267Sjkimplatforms by packing data within the 64-bit alignment. This includes the 4225193267Sjkimfrequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static 4226193267Sjkiminstances corresponding to the namespace objects. 4227167802Sjkim 4228193267SjkimAdded two new strings for the predefined _OSI method: "Windows 2001.1 SP1" 4229193267Sjkimand "Windows 2006". 4230167802Sjkim 4231193267SjkimSplit the allocation tracking mechanism out to a separate file, from 4232193267Sjkimutalloc.c to uttrack.c. This mechanism appears to be only useful for 4233193267Sjkimapplication-level code. Kernels may wish to not include uttrack.c in 4234193267Sjkimdistributions. 4235167802Sjkim 4236193267SjkimRemoved all remnants of the obsolete ACPI_REPORT_* macros and the associated 4237193267Sjkimcode. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING 4238193267Sjkimmacros.) 4239167802Sjkim 4240193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 4241193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 4242193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 4243193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 4244193267Sjkimvalues will vary depending on the efficiency of the compiler and the 4245193267Sjkimcompiler options used during generation. 4246167802Sjkim 4247167802Sjkim Previous Release: 4248167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 4249167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 4250167802Sjkim Current Release: 4251167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 4252167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 4253167802Sjkim 4254167802Sjkim 4255167802Sjkim2) iASL Compiler/Disassembler and Tools: 4256167802Sjkim 4257193267SjkimImplemented an ANSI C version of the acpixtract utility. This version will 4258193267Sjkimautomatically extract the DSDT and all SSDTs from the input acpidump text 4259193267Sjkimfile and dump the binary output to separate files. It can also display a 4260193267Sjkimsummary of the input file including the headers for each table found and 4261193267Sjkimwill extract any single ACPI table, with any signature. (See 4262167802Sjkimsource/tools/acpixtract) 4263167802Sjkim 4264167802Sjkim---------------------------------------- 4265167802Sjkim10 March 2006. Summary of changes for version 20060310: 4266167802Sjkim 4267167802Sjkim1) ACPI CA Core Subsystem: 4268167802Sjkim 4269193267SjkimTagged all external interfaces to the subsystem with the new 4270193267SjkimACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist 4271193267Sjkimkernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL 4272193267Sjkimmacro. The default definition is NULL. 4273167802Sjkim 4274193267SjkimAdded the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId. 4275193267SjkimThis allows the host to define this as necessary to simplify kernel 4276193267Sjkimintegration. The default definition is ACPI_NATIVE_UINT. 4277167802Sjkim 4278193267SjkimFixed two interpreter problems related to error processing, the deletion of 4279193267Sjkimobjects, and placing invalid pointers onto the internal operator result 4280193267Sjkimstack. BZ 6028, 6151 (Valery Podrezov) 4281167802Sjkim 4282193267SjkimIncreased the reference count threshold where a warning is emitted for large 4283193267Sjkimreference counts in order to eliminate unnecessary warnings on systems with 4284193267Sjkimlarge namespaces (especially 64-bit.) Increased the value from 0x400 to 4285193267Sjkim0x800. 4286167802Sjkim 4287193267SjkimDue to universal disagreement as to the meaning of the 'c' in the calloc() 4288193267Sjkimfunction, the ACPI_MEM_CALLOCATE macro has been renamed to 4289193267SjkimACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'. 4290193267SjkimACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and 4291193267SjkimACPI_FREE. 4292167802Sjkim 4293193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 4294193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 4295193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 4296193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 4297193267Sjkimvalues will vary depending on the efficiency of the compiler and the 4298193267Sjkimcompiler options used during generation. 4299167802Sjkim 4300167802Sjkim Previous Release: 4301167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 4302167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 4303167802Sjkim Current Release: 4304167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 4305167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 4306167802Sjkim 4307167802Sjkim 4308167802Sjkim2) iASL Compiler/Disassembler: 4309167802Sjkim 4310193267SjkimDisassembler: implemented support for symbolic resource descriptor 4311193267Sjkimreferences. If a CreateXxxxField operator references a fixed offset within a 4312193267Sjkimresource descriptor, a name is assigned to the descriptor and the offset is 4313193267Sjkimtranslated to the appropriate resource tag and pathname. The addition of 4314193267Sjkimthis support brings the disassembled code very close to the original ASL 4315193267Sjkimsource code and helps eliminate run-time errors when the disassembled code 4316193267Sjkimis modified (and recompiled) in such a way as to invalidate the original 4317193267Sjkimfixed offsets. 4318167802Sjkim 4319193267SjkimImplemented support for a Descriptor Name as the last parameter to the ASL 4320193267SjkimRegister() macro. This parameter was inadvertently left out of the ACPI 4321193267Sjkimspecification, and will be added for ACPI 3.0b. 4322167802Sjkim 4323193267SjkimFixed a problem where the use of the "_OSI" string (versus the full path 4324193267Sjkim"\_OSI") caused an internal compiler error. ("No back ptr to op") 4325167802Sjkim 4326193267SjkimFixed a problem with the error message that occurs when an invalid string is 4327193267Sjkimused for a _HID object (such as one with an embedded asterisk: "*PNP010A".) 4328193267SjkimThe correct message is now displayed. 4329167802Sjkim 4330167802Sjkim---------------------------------------- 4331167802Sjkim17 February 2006. Summary of changes for version 20060217: 4332167802Sjkim 4333167802Sjkim1) ACPI CA Core Subsystem: 4334167802Sjkim 4335193267SjkimImplemented a change to the IndexField support to match the behavior of the 4336193267SjkimMicrosoft AML interpreter. The value written to the Index register is now a 4337193267Sjkimbyte offset, no longer an index based upon the width of the Data register. 4338193267SjkimThis should fix IndexField problems seen on some machines where the Data 4339193267Sjkimregister is not exactly one byte wide. The ACPI specification will be 4340193267Sjkimclarified on this point. 4341167802Sjkim 4342193267SjkimFixed a problem where several resource descriptor types could overrun the 4343193267Sjkiminternal descriptor buffer due to size miscalculation: VendorShort, 4344193267SjkimVendorLong, and Interrupt. This was noticed on IA64 machines, but could 4345193267Sjkimaffect all platforms. 4346167802Sjkim 4347193267SjkimFixed a problem where individual resource descriptors were misaligned within 4348193267Sjkimthe internal buffer, causing alignment faults on IA64 platforms. 4349167802Sjkim 4350193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 4351193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 4352193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 4353193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 4354193267Sjkimvalues will vary depending on the efficiency of the compiler and the 4355193267Sjkimcompiler options used during generation. 4356167802Sjkim 4357167802Sjkim Previous Release: 4358167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 4359167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 4360167802Sjkim Current Release: 4361167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 4362167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 4363167802Sjkim 4364167802Sjkim 4365167802Sjkim2) iASL Compiler/Disassembler: 4366167802Sjkim 4367193267SjkimImplemented support for new reserved names: _WDG and _WED are Microsoft 4368193267Sjkimextensions for Windows Instrumentation Management, _TDL is a new ACPI- 4369193267Sjkimdefined method (Throttling Depth Limit.) 4370167802Sjkim 4371193267SjkimFixed a problem where a zero-length VendorShort or VendorLong resource 4372193267Sjkimdescriptor was incorrectly emitted as a descriptor of length one. 4373167802Sjkim 4374167802Sjkim---------------------------------------- 4375167802Sjkim10 February 2006. Summary of changes for version 20060210: 4376167802Sjkim 4377167802Sjkim1) ACPI CA Core Subsystem: 4378167802Sjkim 4379193267SjkimRemoved a couple of extraneous ACPI_ERROR messages that appeared during 4380193267Sjkimnormal execution. These became apparent after the conversion from 4381193267SjkimACPI_DEBUG_PRINT. 4382167802Sjkim 4383193267SjkimFixed a problem where the CreateField operator could hang if the BitIndex or 4384193267SjkimNumBits parameter referred to a named object. (Valery Podrezov, BZ 5359) 4385167802Sjkim 4386193267SjkimFixed a problem where a DeRefOf operation on a buffer object incorrectly 4387193267Sjkimfailed with an exception. This also fixes a couple of related RefOf and 4388193267SjkimDeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387) 4389167802Sjkim 4390193267SjkimFixed a problem where the AE_BUFFER_LIMIT exception was returned instead of 4391193267SjkimAE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ 4392193267Sjkim5480) 4393167802Sjkim 4394193267SjkimImplemented a memory cleanup at the end of the execution of each iteration 4395193267Sjkimof an AML While() loop, preventing the accumulation of outstanding objects. 4396193267Sjkim(Valery Podrezov, BZ 5427) 4397167802Sjkim 4398193267SjkimEliminated a chunk of duplicate code in the object resolution code. (Valery 4399193267SjkimPodrezov, BZ 5336) 4400167802Sjkim 4401167802SjkimFixed several warnings during the 64-bit code generation. 4402167802Sjkim 4403193267SjkimThe AcpiSrc source code conversion tool now inserts one line of whitespace 4404193267Sjkimafter an if() statement that is followed immediately by a comment, improving 4405193267Sjkimreadability of the Linux code. 4406167802Sjkim 4407193267SjkimCode and Data Size: The current and previous library sizes for the core 4408193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4409193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4410193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4411193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4412193267Sjkimand data size. Note that these values will vary depending on the efficiency 4413193267Sjkimof the compiler and the compiler options used during generation. 4414167802Sjkim 4415167802Sjkim Previous Release: 4416167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 4417167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 4418167802Sjkim Current Release: 4419167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 4420167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 4421167802Sjkim 4422167802Sjkim 4423167802Sjkim2) iASL Compiler/Disassembler: 4424167802Sjkim 4425193267SjkimFixed a problem with the disassembly of a BankField operator with a complex 4426193267Sjkimexpression for the BankValue parameter. 4427167802Sjkim 4428167802Sjkim---------------------------------------- 4429167802Sjkim27 January 2006. Summary of changes for version 20060127: 4430167802Sjkim 4431167802Sjkim1) ACPI CA Core Subsystem: 4432167802Sjkim 4433193267SjkimImplemented support in the Resource Manager to allow unresolved namestring 4434193267Sjkimreferences within resource package objects for the _PRT method. This support 4435193267Sjkimis in addition to the previously implemented unresolved reference support 4436193267Sjkimwithin the AML parser. If the interpreter slack mode is enabled, these 4437193267Sjkimunresolved references will be passed through to the caller as a NULL package 4438167802Sjkimentry. 4439167802Sjkim 4440193267SjkimImplemented and deployed new macros and functions for error and warning 4441193267Sjkimmessages across the subsystem. These macros are simpler and generate less 4442193267Sjkimcode than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, 4443193267SjkimACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older 4444193267Sjkimmacros remain defined to allow ACPI drivers time to migrate to the new 4445193267Sjkimmacros. 4446167802Sjkim 4447193267SjkimImplemented the ACPI_CPU_FLAGS type to simplify host OS integration of the 4448193267SjkimAcquire/Release Lock OSL interfaces. 4449167802Sjkim 4450193267SjkimFixed a problem where Alias ASL operators are sometimes not correctly 4451193267Sjkimresolved, in both the interpreter and the iASL compiler. 4452167802Sjkim 4453193267SjkimFixed several problems with the implementation of the ConcatenateResTemplate 4454193267SjkimASL operator. As per the ACPI specification, zero length buffers are now 4455193267Sjkimtreated as a single EndTag. One-length buffers always cause a fatal 4456193267Sjkimexception. Non-zero length buffers that do not end with a full 2-byte EndTag 4457167802Sjkimcause a fatal exception. 4458167802Sjkim 4459193267SjkimFixed a possible structure overwrite in the AcpiGetObjectInfo external 4460193267Sjkiminterface. (With assistance from Thomas Renninger) 4461167802Sjkim 4462193267SjkimCode and Data Size: The current and previous library sizes for the core 4463193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4464193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4465193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4466193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4467193267Sjkimand data size. Note that these values will vary depending on the efficiency 4468193267Sjkimof the compiler and the compiler options used during generation. 4469167802Sjkim 4470167802Sjkim Previous Release: 4471167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 4472167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 4473167802Sjkim Current Release: 4474167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 4475167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 4476167802Sjkim 4477167802Sjkim 4478167802Sjkim2) iASL Compiler/Disassembler: 4479167802Sjkim 4480193267SjkimFixed an internal error that was generated for any forward references to ASL 4481193267SjkimAlias objects. 4482167802Sjkim 4483167802Sjkim---------------------------------------- 4484167802Sjkim13 January 2006. Summary of changes for version 20060113: 4485167802Sjkim 4486167802Sjkim1) ACPI CA Core Subsystem: 4487167802Sjkim 4488193267SjkimAdded 2006 copyright to all module headers and signons. This affects 4489193267Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and the 4490193267Sjkimutilities. 4491193267Sjkim 4492193267SjkimEnhanced the ACPICA error reporting in order to simplify user migration to 4493193267Sjkimthe non-debug version of ACPICA. Replaced all instances of the 4494193267SjkimACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug 4495193267Sjkimlevels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, 4496193267Sjkimrespectively. This preserves all error and warning messages in the non-debug 4497193267Sjkimversion of the ACPICA code (this has been referred to as the "debug lite" 4498193267Sjkimoption.) Over 200 cases were converted to create a total of over 380 4499193267Sjkimerror/warning messages across the ACPICA code. This increases the code and 4500193267Sjkimdata size of the default non-debug version of the code somewhat (about 13K), 4501193267Sjkimbut all error/warning reporting may be disabled if desired (and code 4502193267Sjkimeliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time 4503193267Sjkimconfiguration option. The size of the debug version of ACPICA remains about 4504193267Sjkimthe same. 4505167802Sjkim 4506193267SjkimFixed a memory leak within the AML Debugger "Set" command. One object was 4507193267Sjkimnot properly deleted for every successful invocation of the command. 4508167802Sjkim 4509193267SjkimCode and Data Size: The current and previous library sizes for the core 4510193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4511193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4512193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4513193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4514193267Sjkimand data size. Note that these values will vary depending on the efficiency 4515193267Sjkimof the compiler and the compiler options used during generation. 4516167802Sjkim 4517167802Sjkim Previous Release: 4518167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 4519167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 4520167802Sjkim Current Release: 4521167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 4522167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 4523167802Sjkim 4524167802Sjkim 4525167802Sjkim2) iASL Compiler/Disassembler: 4526167802Sjkim 4527193267SjkimThe compiler now officially supports the ACPI 3.0a specification that was 4528193267Sjkimreleased on December 30, 2005. (Specification is available at www.acpi.info) 4529167802Sjkim 4530167802Sjkim---------------------------------------- 4531167802Sjkim16 December 2005. Summary of changes for version 20051216: 4532167802Sjkim 4533167802Sjkim1) ACPI CA Core Subsystem: 4534167802Sjkim 4535193267SjkimImplemented optional support to allow unresolved names within ASL Package 4536193267Sjkimobjects. A null object is inserted in the package when a named reference 4537193267Sjkimcannot be located in the current namespace. Enabled via the interpreter 4538193267Sjkimslack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines 4539193267Sjkimthat contain such code. 4540167802Sjkim 4541193267SjkimImplemented an optimization to the initialization sequence that can improve 4542193267Sjkimboot time. During ACPI device initialization, the _STA method is now run if 4543193267Sjkimand only if the _INI method exists. The _STA method is used to determine if 4544193267Sjkimthe device is present; An _INI can only be run if _STA returns present, but 4545193267Sjkimit is a waste of time to run the _STA method if the _INI does not exist. 4546167802Sjkim(Prototype and assistance from Dong Wei) 4547167802Sjkim 4548193267SjkimImplemented use of the C99 uintptr_t for the pointer casting macros if it is 4549193267Sjkimavailable in the current compiler. Otherwise, the default (void *) cast is 4550193267Sjkimused as before. 4551167802Sjkim 4552193267SjkimFixed some possible memory leaks found within the execution path of the 4553193267SjkimBreak, Continue, If, and CreateField operators. (Valery Podrezov) 4554167802Sjkim 4555193267SjkimFixed a problem introduced in the 20051202 release where an exception is 4556193267Sjkimgenerated during method execution if a control method attempts to declare 4557193267Sjkimanother method. 4558167802Sjkim 4559193267SjkimMoved resource descriptor string constants that are used by both the AML 4560193267Sjkimdisassembler and AML debugger to the common utilities directory so that 4561193267Sjkimthese components are independent. 4562167802Sjkim 4563193267SjkimImplemented support in the AcpiExec utility (-e switch) to globally ignore 4564193267Sjkimexceptions during control method execution (method is not aborted.) 4565167802Sjkim 4566193267SjkimAdded the rsinfo.c source file to the AcpiExec makefile for Linux/Unix 4567193267Sjkimgeneration. 4568167802Sjkim 4569193267SjkimCode and Data Size: The current and previous library sizes for the core 4570193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4571193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4572193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4573193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4574193267Sjkimand data size. Note that these values will vary depending on the efficiency 4575193267Sjkimof the compiler and the compiler options used during generation. 4576167802Sjkim 4577167802Sjkim Previous Release: 4578167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4579167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 4580167802Sjkim Current Release: 4581167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 4582167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 4583167802Sjkim 4584167802Sjkim 4585167802Sjkim2) iASL Compiler/Disassembler: 4586167802Sjkim 4587193267SjkimFixed a problem where a CPU stack overflow fault could occur if a recursive 4588193267Sjkimmethod call was made from within a Return statement. 4589167802Sjkim 4590167802Sjkim---------------------------------------- 4591167802Sjkim02 December 2005. Summary of changes for version 20051202: 4592167802Sjkim 4593167802Sjkim1) ACPI CA Core Subsystem: 4594167802Sjkim 4595193267SjkimModified the parsing of control methods to no longer create namespace 4596193267Sjkimobjects during the first pass of the parse. Objects are now created only 4597193267Sjkimduring the execute phase, at the moment the namespace creation operator is 4598193267Sjkimencountered in the AML (Name, OperationRegion, CreateByteField, etc.) This 4599193267Sjkimshould eliminate ALREADY_EXISTS exceptions seen on some machines where 4600193267Sjkimreentrant control methods are protected by an AML mutex. The mutex will now 4601193267Sjkimcorrectly block multiple threads from attempting to create the same object 4602193267Sjkimmore than once. 4603167802Sjkim 4604193267SjkimIncreased the number of available Owner Ids for namespace object tracking 4605193267Sjkimfrom 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on 4606193267Sjkimsome machines with a large number of ACPI tables (either static or dynamic). 4607167802Sjkim 4608193267SjkimFixed a problem with the AcpiExec utility where a fault could occur when the 4609193267Sjkim-b switch (batch mode) is used. 4610167802Sjkim 4611193267SjkimEnhanced the namespace dump routine to output the owner ID for each 4612193267Sjkimnamespace object. 4613167802Sjkim 4614193267SjkimCode and Data Size: The current and previous library sizes for the core 4615193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4616193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4617193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4618193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4619193267Sjkimand data size. Note that these values will vary depending on the efficiency 4620193267Sjkimof the compiler and the compiler options used during generation. 4621167802Sjkim 4622167802Sjkim Previous Release: 4623167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4624167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4625167802Sjkim Current Release: 4626167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4627167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 4628167802Sjkim 4629167802Sjkim 4630167802Sjkim2) iASL Compiler/Disassembler: 4631167802Sjkim 4632193267SjkimFixed a parse error during compilation of certain Switch/Case constructs. To 4633193267Sjkimsimplify the parse, the grammar now allows for multiple Default statements 4634193267Sjkimand this error is now detected and flagged during the analysis phase. 4635167802Sjkim 4636193267SjkimDisassembler: The disassembly now includes the contents of the original 4637193267Sjkimtable header within a comment at the start of the file. This includes the 4638193267Sjkimname and version of the original ASL compiler. 4639167802Sjkim 4640167802Sjkim---------------------------------------- 4641167802Sjkim17 November 2005. Summary of changes for version 20051117: 4642167802Sjkim 4643167802Sjkim1) ACPI CA Core Subsystem: 4644167802Sjkim 4645193267SjkimFixed a problem in the AML parser where the method thread count could be 4646193267Sjkimdecremented below zero if any errors occurred during the method parse phase. 4647193267SjkimThis should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. 4648193267SjkimThis also fixed a related regression with the mechanism that detects and 4649193267Sjkimcorrects methods that cannot properly handle reentrancy (related to the 4650193267Sjkimdeployment of the new OwnerId mechanism.) 4651167802Sjkim 4652193267SjkimEliminated the pre-parsing of control methods (to detect errors) during 4653193267Sjkimtable load. Related to the problem above, this was causing unwind issues if 4654193267Sjkimany errors occurred during the parse, and it seemed to be overkill. A table 4655193267Sjkimload should not be aborted if there are problems with any single control 4656193267Sjkimmethod, thus rendering this feature rather pointless. 4657167802Sjkim 4658193267SjkimFixed a problem with the new table-driven resource manager where an internal 4659193267Sjkimbuffer overflow could occur for small resource templates. 4660167802Sjkim 4661193267SjkimImplemented a new external interface, AcpiGetVendorResource. This interface 4662193267Sjkimwill find and return a vendor-defined resource descriptor within a _CRS or 4663193267Sjkim_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas. 4664167802Sjkim 4665193267SjkimRemoved the length limit (200) on string objects as per the upcoming ACPI 4666193267Sjkim3.0A specification. This affects the following areas of the interpreter: 1) 4667193267Sjkimany implicit conversion of a Buffer to a String, 2) a String object result 4668193267Sjkimof the ASL Concatentate operator, 3) the String object result of the ASL 4669193267SjkimToString operator. 4670167802Sjkim 4671193267SjkimFixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER 4672193267Sjkimon a semaphore object would incorrectly timeout. This allows the 4673193267Sjkimmultithreading features of the AcpiExec utility to work properly under 4674193267SjkimWindows. 4675167802Sjkim 4676193267SjkimUpdated the Linux makefiles for the iASL compiler and AcpiExec to include 4677193267Sjkimthe recently added file named "utresrc.c". 4678167802Sjkim 4679193267SjkimCode and Data Size: The current and previous library sizes for the core 4680193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4681193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4682193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4683193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4684193267Sjkimand data size. Note that these values will vary depending on the efficiency 4685193267Sjkimof the compiler and the compiler options used during generation. 4686167802Sjkim 4687167802Sjkim Previous Release: 4688167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 4689167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4690167802Sjkim Current Release: 4691167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 4692167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4693167802Sjkim 4694167802Sjkim 4695167802Sjkim2) iASL Compiler/Disassembler: 4696167802Sjkim 4697193267SjkimRemoved the limit (200) on string objects as per the upcoming ACPI 3.0A 4698193267Sjkimspecification. For the iASL compiler, this means that string literals within 4699193267Sjkimthe source ASL can be of any length. 4700167802Sjkim 4701193267SjkimEnhanced the listing output to dump the AML code for resource descriptors 4702193267Sjkimimmediately after the ASL code for each descriptor, instead of in a block at 4703193267Sjkimthe end of the entire resource template. 4704167802Sjkim 4705193267SjkimEnhanced the compiler debug output to dump the entire original parse tree 4706193267Sjkimconstructed during the parse phase, before any transforms are applied to the 4707193267Sjkimtree. The transformed tree is dumped also. 4708167802Sjkim 4709167802Sjkim---------------------------------------- 4710167802Sjkim02 November 2005. Summary of changes for version 20051102: 4711167802Sjkim 4712167802Sjkim1) ACPI CA Core Subsystem: 4713167802Sjkim 4714193267SjkimModified the subsystem initialization sequence to improve GPE support. The 4715193267SjkimGPE initialization has been split into two parts in order to defer execution 4716193267Sjkimof the _PRW methods (Power Resources for Wake) until after the hardware is 4717193267Sjkimfully initialized and the SCI handler is installed. This allows the _PRW 4718193267Sjkimmethods to access fields protected by the Global Lock. This will fix systems 4719193267Sjkimwhere a NO_GLOBAL_LOCK exception has been seen during initialization. 4720167802Sjkim 4721193267SjkimConverted the ACPI internal object disassemble and display code within the 4722193267SjkimAML debugger to fully table-driven operation, reducing code size and 4723193267Sjkimincreasing maintainability. 4724167802Sjkim 4725193267SjkimFixed a regression with the ConcatenateResTemplate() ASL operator introduced 4726193267Sjkimin the 20051021 release. 4727167802Sjkim 4728193267SjkimImplemented support for "local" internal ACPI object types within the 4729193267Sjkimdebugger "Object" command and the AcpiWalkNamespace external interfaces. 4730193267SjkimThese local types include RegionFields, BankFields, IndexFields, Alias, and 4731193267Sjkimreference objects. 4732167802Sjkim 4733193267SjkimMoved common AML resource handling code into a new file, "utresrc.c". This 4734193267Sjkimcode is shared by both the Resource Manager and the AML Debugger. 4735167802Sjkim 4736193267SjkimCode and Data Size: The current and previous library sizes for the core 4737193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4738193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4739193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4740193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4741193267Sjkimand data size. Note that these values will vary depending on the efficiency 4742193267Sjkimof the compiler and the compiler options used during generation. 4743167802Sjkim 4744167802Sjkim Previous Release: 4745167802Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 4746167802Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 4747167802Sjkim Current Release: 4748167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 4749167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 4750167802Sjkim 4751167802Sjkim 4752167802Sjkim2) iASL Compiler/Disassembler: 4753167802Sjkim 4754193267SjkimFixed a problem with very large initializer lists (more than 4000 elements) 4755193267Sjkimfor both Buffer and Package objects where the parse stack could overflow. 4756167802Sjkim 4757193267SjkimEnhanced the pre-compile source code scan for non-ASCII characters to ignore 4758193267Sjkimcharacters within comment fields. The scan is now always performed and is no 4759193267Sjkimlonger optional, detecting invalid characters within a source file 4760193267Sjkimimmediately rather than during the parse phase or later. 4761167802Sjkim 4762193267SjkimEnhanced the ASL grammar definition to force early reductions on all list- 4763193267Sjkimstyle grammar elements so that the overall parse stack usage is greatly 4764193267Sjkimreduced. This should improve performance and reduce the possibility of parse 4765193267Sjkimstack overflow. 4766167802Sjkim 4767193267SjkimEliminated all reduce/reduce conflicts in the iASL parser generation. Also, 4768193267Sjkimwith the addition of a %expected statement, the compiler generates from 4769193267Sjkimsource with no warnings. 4770167802Sjkim 4771193267SjkimFixed a possible segment fault in the disassembler if the input filename 4772193267Sjkimdoes not contain a "dot" extension (Thomas Renninger). 4773167802Sjkim 4774167802Sjkim---------------------------------------- 4775151937Sjkim21 October 2005. Summary of changes for version 20051021: 4776151937Sjkim 4777151937Sjkim1) ACPI CA Core Subsystem: 4778151937Sjkim 4779193267SjkimImplemented support for the EM64T and other x86-64 processors. This 4780193267Sjkimessentially entails recognizing that these processors support non-aligned 4781193267Sjkimmemory transfers. Previously, all 64-bit processors were assumed to lack 4782193267Sjkimhardware support for non-aligned transfers. 4783151937Sjkim 4784193267SjkimCompleted conversion of the Resource Manager to nearly full table-driven 4785193267Sjkimoperation. Specifically, the resource conversion code (convert AML to 4786193267Sjkiminternal format and the reverse) and the debug code to dump internal 4787193267Sjkimresource descriptors are fully table-driven, reducing code and data size and 4788193267Sjkimimproving maintainability. 4789151937Sjkim 4790193267SjkimThe OSL interfaces for Acquire and Release Lock now use a 64-bit flag word 4791193267Sjkimon 64-bit processors instead of a fixed 32-bit word. (With assistance from 4792193267SjkimAlexey Starikovskiy) 4793151937Sjkim 4794193267SjkimImplemented support within the resource conversion code for the Type- 4795193267SjkimSpecific byte within the various ACPI 3.0 *WordSpace macros. 4796151937Sjkim 4797193267SjkimFixed some issues within the resource conversion code for the type-specific 4798193267Sjkimflags for both Memory and I/O address resource descriptors. For Memory, 4799193267Sjkimimplemented support for the MTP and TTP flags. For I/O, split the TRS and 4800193267SjkimTTP flags into two separate fields. 4801151937Sjkim 4802193267SjkimCode and Data Size: The current and previous library sizes for the core 4803193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4804193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4805193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4806193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4807193267Sjkimand data size. Note that these values will vary depending on the efficiency 4808193267Sjkimof the compiler and the compiler options used during generation. 4809151937Sjkim 4810151937Sjkim Previous Release: 4811151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 4812151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 4813151937Sjkim Current Release: 4814151937Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 4815151937Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 4816151937Sjkim 4817151937Sjkim 4818167802Sjkim 4819151937Sjkim2) iASL Compiler/Disassembler: 4820151937Sjkim 4821193267SjkimRelaxed a compiler restriction that disallowed a ResourceIndex byte if the 4822193267Sjkimcorresponding ResourceSource string was not also present in a resource 4823193267Sjkimdescriptor declaration. This restriction caused problems with existing 4824193267SjkimAML/ASL code that includes the Index byte without the string. When such AML 4825193267Sjkimwas disassembled, it could not be compiled without modification. Further, 4826193267Sjkimthe modified code created a resource template with a different size than the 4827193267Sjkimoriginal, breaking code that used fixed offsets into the resource template 4828193267Sjkimbuffer. 4829151937Sjkim 4830193267SjkimRemoved a recent feature of the disassembler to ignore a lone ResourceIndex 4831193267Sjkimbyte. This byte is now emitted if present so that the exact AML can be 4832193267Sjkimreproduced when the disassembled code is recompiled. 4833151937Sjkim 4834193267SjkimImproved comments and text alignment for the resource descriptor code 4835193267Sjkimemitted by the disassembler. 4836151937Sjkim 4837193267SjkimImplemented disassembler support for the ACPI 3.0 AccessSize field within a 4838193267SjkimRegister() resource descriptor. 4839151937Sjkim 4840151937Sjkim---------------------------------------- 4841151937Sjkim30 September 2005. Summary of changes for version 20050930: 4842151937Sjkim 4843151937Sjkim1) ACPI CA Core Subsystem: 4844151937Sjkim 4845193267SjkimCompleted a major overhaul of the Resource Manager code - specifically, 4846193267Sjkimoptimizations in the area of the AML/internal resource conversion code. The 4847193267Sjkimcode has been optimized to simplify and eliminate duplicated code, CPU stack 4848193267Sjkimuse has been decreased by optimizing function parameters and local 4849193267Sjkimvariables, and naming conventions across the manager have been standardized 4850193267Sjkimfor clarity and ease of maintenance (this includes function, parameter, 4851193267Sjkimvariable, and struct/typedef names.) The update may force changes in some 4852193267Sjkimdriver code, depending on how resources are handled by the host OS. 4853151937Sjkim 4854193267SjkimAll Resource Manager dispatch and information tables have been moved to a 4855193267Sjkimsingle location for clarity and ease of maintenance. One new file was 4856193267Sjkimcreated, named "rsinfo.c". 4857151937Sjkim 4858193267SjkimThe ACPI return macros (return_ACPI_STATUS, etc.) have been modified to 4859193267Sjkimguarantee that the argument is not evaluated twice, making them less prone 4860193267Sjkimto macro side-effects. However, since there exists the possibility of 4861193267Sjkimadditional stack use if a particular compiler cannot optimize them (such as 4862193267Sjkimin the debug generation case), the original macros are optionally available. 4863193267SjkimNote that some invocations of the return_VALUE macro may now cause size 4864193267Sjkimmismatch warnings; the return_UINT8 and return_UINT32 macros are provided to 4865193267Sjkimeliminate these. (From Randy Dunlap) 4866151937Sjkim 4867193267SjkimImplemented a new mechanism to enable debug tracing for individual control 4868193267Sjkimmethods. A new external interface, AcpiDebugTrace, is provided to enable 4869193267Sjkimthis mechanism. The intent is to allow the host OS to easily enable and 4870193267Sjkimdisable tracing for problematic control methods. This interface can be 4871193267Sjkimeasily exposed to a user or debugger interface if desired. See the file 4872151937Sjkimpsxface.c for details. 4873151937Sjkim 4874193267SjkimAcpiUtCallocate will now return a valid pointer if a length of zero is 4875193267Sjkimspecified - a length of one is used and a warning is issued. This matches 4876193267Sjkimthe behavior of AcpiUtAllocate. 4877151937Sjkim 4878193267SjkimCode and Data Size: The current and previous library sizes for the core 4879193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4880193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4881193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4882193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4883193267Sjkimand data size. Note that these values will vary depending on the efficiency 4884193267Sjkimof the compiler and the compiler options used during generation. 4885151937Sjkim 4886151937Sjkim Previous Release: 4887151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4888151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4889151937Sjkim Current Release: 4890151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 4891151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 4892151937Sjkim 4893151937Sjkim 4894151937Sjkim2) iASL Compiler/Disassembler: 4895151937Sjkim 4896193267SjkimA remark is issued if the effective compile-time length of a package or 4897193267Sjkimbuffer is zero. Previously, this was a warning. 4898151937Sjkim 4899151937Sjkim---------------------------------------- 4900151937Sjkim16 September 2005. Summary of changes for version 20050916: 4901151937Sjkim 4902151937Sjkim1) ACPI CA Core Subsystem: 4903151937Sjkim 4904193267SjkimFixed a problem within the Resource Manager where support for the Generic 4905193267SjkimRegister descriptor was not fully implemented. This descriptor is now fully 4906193267Sjkimrecognized, parsed, disassembled, and displayed. 4907151937Sjkim 4908193267SjkimCompletely restructured the Resource Manager code to utilize table-driven 4909193267Sjkimdispatch and lookup, eliminating many of the large switch() statements. This 4910193267Sjkimreduces overall subsystem code size and code complexity. Affects the 4911193267Sjkimresource parsing and construction, disassembly, and debug dump output. 4912151937Sjkim 4913193267SjkimCleaned up and restructured the debug dump output for all resource 4914193267Sjkimdescriptors. Improved readability of the output and reduced code size. 4915151937Sjkim 4916193267SjkimFixed a problem where changes to internal data structures caused the 4917193267Sjkimoptional ACPI_MUTEX_DEBUG code to fail compilation if specified. 4918151937Sjkim 4919193267SjkimCode and Data Size: The current and previous library sizes for the core 4920193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4921193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4922193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4923193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4924193267Sjkimand data size. Note that these values will vary depending on the efficiency 4925193267Sjkimof the compiler and the compiler options used during generation. 4926151937Sjkim 4927151937Sjkim Previous Release: 4928151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4929151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4930151937Sjkim Current Release: 4931151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4932151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4933151937Sjkim 4934151937Sjkim 4935151937Sjkim2) iASL Compiler/Disassembler: 4936151937Sjkim 4937193267SjkimUpdated the disassembler to automatically insert an EndDependentFn() macro 4938193267Sjkiminto the ASL stream if this macro is missing in the original AML code, 4939193267Sjkimsimplifying compilation of the resulting ASL module. 4940151937Sjkim 4941193267SjkimFixed a problem in the disassembler where a disassembled ResourceSource 4942193267Sjkimstring (within a large resource descriptor) was not surrounded by quotes and 4943193267Sjkimnot followed by a comma, causing errors when the resulting ASL module was 4944193267Sjkimcompiled. Also, escape sequences within a ResourceSource string are now 4945193267Sjkimhandled correctly (especially "\\") 4946151937Sjkim 4947151937Sjkim---------------------------------------- 4948151937Sjkim02 September 2005. Summary of changes for version 20050902: 4949151937Sjkim 4950151937Sjkim1) ACPI CA Core Subsystem: 4951151937Sjkim 4952193267SjkimFixed a problem with the internal Owner ID allocation and deallocation 4953193267Sjkimmechanisms for control method execution and recursive method invocation. 4954193267SjkimThis should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" 4955193267Sjkimmessages seen on some systems. Recursive method invocation depth is 4956193267Sjkimcurrently limited to 255. (Alexey Starikovskiy) 4957151937Sjkim 4958193267SjkimCompletely eliminated all vestiges of support for the "module-level 4959193267Sjkimexecutable code" until this support is fully implemented and debugged. This 4960193267Sjkimshould eliminate the NO_RETURN_VALUE exceptions seen during table load on 4961193267Sjkimsome systems that invoke this support. 4962151937Sjkim 4963193267SjkimFixed a problem within the resource manager code where the transaction flags 4964193267Sjkimfor a 64-bit address descriptor were handled incorrectly in the type- 4965193267Sjkimspecific flag byte. 4966151937Sjkim 4967193267SjkimConsolidated duplicate code within the address descriptor resource manager 4968193267Sjkimcode, reducing overall subsystem code size. 4969151937Sjkim 4970193267SjkimFixed a fault when using the AML debugger "disassemble" command to 4971193267Sjkimdisassemble individual control methods. 4972151937Sjkim 4973193267SjkimRemoved references to the "release_current" directory within the Unix 4974193267Sjkimrelease package. 4975151937Sjkim 4976193267SjkimCode and Data Size: The current and previous core subsystem library sizes 4977193267Sjkimare shown below. These are the code and data sizes for the acpica.lib 4978193267Sjkimproduced by the Microsoft Visual C++ 6.0 compiler. These values do not 4979193267Sjkiminclude any ACPI driver or OSPM code. The debug version of the code includes 4980193267Sjkimthe debug output trace mechanism and has a much larger code and data size. 4981193267SjkimNote that these values will vary depending on the efficiency of the compiler 4982193267Sjkimand the compiler options used during generation. 4983151937Sjkim 4984151937Sjkim Previous Release: 4985151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4986151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4987151937Sjkim Current Release: 4988151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4989151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4990151937Sjkim 4991151937Sjkim 4992151937Sjkim2) iASL Compiler/Disassembler: 4993151937Sjkim 4994193267SjkimImplemented an error check for illegal duplicate values in the interrupt and 4995193267Sjkimdma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and 4996193267SjkimInterrupt(). 4997151937Sjkim 4998193267SjkimImplemented error checking for the Irq() and IrqNoFlags() macros to detect 4999193267Sjkimtoo many values in the interrupt list (16 max) and invalid values in the 5000193267Sjkimlist (range 0 - 15) 5001151937Sjkim 5002193267SjkimThe maximum length string literal within an ASL file is now restricted to 5003193267Sjkim200 characters as per the ACPI specification. 5004151937Sjkim 5005193267SjkimFixed a fault when using the -ln option (generate namespace listing). 5006151937Sjkim 5007193267SjkimImplemented an error check to determine if a DescriptorName within a 5008193267Sjkimresource descriptor has already been used within the current scope. 5009151937Sjkim 5010151937Sjkim---------------------------------------- 5011151937Sjkim15 August 2005. Summary of changes for version 20050815: 5012193267Sjkim 5013151937Sjkim1) ACPI CA Core Subsystem: 5014193267Sjkim 5015193267SjkimImplemented a full bytewise compare to determine if a table load request is 5016193267Sjkimattempting to load a duplicate table. The compare is performed if the table 5017193267Sjkimsignatures and table lengths match. This will allow different tables with 5018193267Sjkimthe same OEM Table ID and revision to be loaded - probably against the ACPI 5019193267Sjkimspecification, but discovered in the field nonetheless. 5020193267Sjkim 5021193267SjkimAdded the changes.txt logfile to each of the zipped release packages. 5022193267Sjkim 5023193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5024193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5025193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5026193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5027193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5028193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5029193267Sjkimthe compiler options used during generation. 5030193267Sjkim 5031151937Sjkim Previous Release: 5032151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 5033151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 5034151937Sjkim Current Release: 5035151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 5036151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 5037193267Sjkim 5038193267Sjkim 5039151937Sjkim2) iASL Compiler/Disassembler: 5040193267Sjkim 5041193267SjkimFixed a problem where incorrect AML code could be generated for Package 5042193267Sjkimobjects if optimization is disabled (via the -oa switch). 5043193267Sjkim 5044193267SjkimFixed a problem with where incorrect AML code is generated for variable- 5045193267Sjkimlength packages when the package length is not specified and the number of 5046193267Sjkiminitializer values is greater than 255. 5047193267Sjkim 5048151937Sjkim 5049151937Sjkim---------------------------------------- 5050151937Sjkim29 July 2005. Summary of changes for version 20050729: 5051151937Sjkim 5052151937Sjkim1) ACPI CA Core Subsystem: 5053151937Sjkim 5054193267SjkimImplemented support to ignore an attempt to install/load a particular ACPI 5055193267Sjkimtable more than once. Apparently there exists BIOS code that repeatedly 5056193267Sjkimattempts to load the same SSDT upon certain events. With assistance from 5057193267SjkimVenkatesh Pallipadi. 5058151937Sjkim 5059193267SjkimRestructured the main interface to the AML parser in order to correctly 5060193267Sjkimhandle all exceptional conditions. This will prevent leakage of the OwnerId 5061193267Sjkimresource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some 5062193267Sjkimmachines. With assistance from Alexey Starikovskiy. 5063151937Sjkim 5064193267SjkimSupport for "module level code" has been disabled in this version due to a 5065193267Sjkimnumber of issues that have appeared on various machines. The support can be 5066193267Sjkimenabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem 5067193267Sjkimcompilation. When the issues are fully resolved, the code will be enabled by 5068151937Sjkimdefault again. 5069151937Sjkim 5070193267SjkimModified the internal functions for debug print support to define the 5071193267SjkimFunctionName parameter as a (const char *) for compatibility with compiler 5072193267Sjkimbuilt-in macros such as __FUNCTION__, etc. 5073151937Sjkim 5074151937SjkimLinted the entire ACPICA source tree for both 32-bit and 64-bit. 5075151937Sjkim 5076193267SjkimImplemented support to display an object count summary for the AML Debugger 5077193267Sjkimcommands Object and Methods. 5078151937Sjkim 5079193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5080193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5081193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5082193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5083193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5084193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5085193267Sjkimthe compiler options used during generation. 5086151937Sjkim 5087151937Sjkim Previous Release: 5088151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 5089151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 5090151937Sjkim Current Release: 5091151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 5092151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 5093151937Sjkim 5094151937Sjkim 5095151937Sjkim2) iASL Compiler/Disassembler: 5096151937Sjkim 5097193267SjkimFixed a regression that appeared in the 20050708 version of the compiler 5098193267Sjkimwhere an error message was inadvertently emitted for invocations of the _OSI 5099193267Sjkimreserved control method. 5100151937Sjkim 5101151937Sjkim---------------------------------------- 5102151937Sjkim08 July 2005. Summary of changes for version 20050708: 5103151937Sjkim 5104151937Sjkim1) ACPI CA Core Subsystem: 5105151937Sjkim 5106193267SjkimThe use of the CPU stack in the debug version of the subsystem has been 5107193267Sjkimconsiderably reduced. Previously, a debug structure was declared in every 5108193267Sjkimfunction that used the debug macros. This structure has been removed in 5109193267Sjkimfavor of declaring the individual elements as parameters to the debug 5110193267Sjkimfunctions. This reduces the cumulative stack use during nested execution of 5111193267SjkimACPI function calls at the cost of a small increase in the code size of the 5112193267Sjkimdebug version of the subsystem. With assistance from Alexey Starikovskiy and 5113193267SjkimLen Brown. 5114151937Sjkim 5115193267SjkimAdded the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent 5116193267Sjkimheaders to define a macro that will return the current function name at 5117193267Sjkimruntime (such as __FUNCTION__ or _func_, etc.) The function name is used by 5118193267Sjkimthe debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the 5119193267Sjkimcompiler-dependent header, the function name is saved on the CPU stack (one 5120193267Sjkimpointer per function.) This mechanism is used because apparently there 5121193267Sjkimexists no standard ANSI-C defined macro that that returns the function name. 5122151937Sjkim 5123193267SjkimRedesigned and reimplemented the "Owner ID" mechanism used to track 5124193267Sjkimnamespace objects created/deleted by ACPI tables and control method 5125193267Sjkimexecution. A bitmap is now used to allocate and free the IDs, thus solving 5126193267Sjkimthe wraparound problem present in the previous implementation. The size of 5127193267Sjkimthe namespace node descriptor was reduced by 2 bytes as a result (Alexey 5128151937SjkimStarikovskiy). 5129151937Sjkim 5130193267SjkimRemoved the UINT32_BIT and UINT16_BIT types that were used for the bitfield 5131193267Sjkimflag definitions within the headers for the predefined ACPI tables. These 5132193267Sjkimhave been replaced by UINT8_BIT in order to increase the code portability of 5133193267Sjkimthe subsystem. If the use of UINT8 remains a problem, we may be forced to 5134193267Sjkimeliminate bitfields entirely because of a lack of portability. 5135151937Sjkim 5136193267SjkimEnhanced the performance of the AcpiUtUpdateObjectReference procedure. This 5137193267Sjkimis a frequently used function and this improvement increases the performance 5138193267Sjkimof the entire subsystem (Alexey Starikovskiy). 5139151937Sjkim 5140193267SjkimFixed several possible memory leaks and the inverse - premature object 5141193267Sjkimdeletion (Alexey Starikovskiy). 5142151937Sjkim 5143193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5144193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5145193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5146193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5147193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5148193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5149193267Sjkimthe compiler options used during generation. 5150151937Sjkim 5151151937Sjkim Previous Release: 5152151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 5153151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 5154151937Sjkim Current Release: 5155151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 5156151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 5157151937Sjkim 5158151937Sjkim---------------------------------------- 5159151937Sjkim24 June 2005. Summary of changes for version 20050624: 5160151937Sjkim 5161151937Sjkim1) ACPI CA Core Subsystem: 5162151937Sjkim 5163193267SjkimModified the new OSL cache interfaces to use ACPI_CACHE_T as the type for 5164193267Sjkimthe host-defined cache object. This allows the OSL implementation to define 5165193267Sjkimand type this object in any manner desired, simplifying the OSL 5166193267Sjkimimplementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for 5167193267SjkimLinux, and should be defined in the OS-specific header file for other 5168193267Sjkimoperating systems as required. 5169151937Sjkim 5170193267SjkimChanged the interface to AcpiOsAcquireObject to directly return the 5171193267Sjkimrequested object as the function return (instead of ACPI_STATUS.) This 5172193267Sjkimchange was made for performance reasons, since this is the purpose of the 5173193267Sjkiminterface in the first place. AcpiOsAcquireObject is now similar to the 5174193267SjkimAcpiOsAllocate interface. 5175151937Sjkim 5176193267SjkimImplemented a new AML debugger command named Businfo. This command displays 5177193267Sjkiminformation about all devices that have an associate _PRT object. The _ADR, 5178193267Sjkim_HID, _UID, and _CID are displayed for these devices. 5179151937Sjkim 5180193267SjkimModified the initialization sequence in AcpiInitializeSubsystem to call the 5181193267SjkimOSL interface AcpiOslInitialize first, before any local initialization. This 5182193267Sjkimchange was required because the global initialization now calls OSL 5183193267Sjkiminterfaces. 5184151937Sjkim 5185193267SjkimEnhanced the Dump command to display the entire contents of Package objects 5186193267Sjkim(including all sub-objects and their values.) 5187151937Sjkim 5188193267SjkimRestructured the code base to split some files because of size and/or 5189193267Sjkimbecause the code logically belonged in a separate file. New files are listed 5190193267Sjkimbelow. All makefiles and project files included in the ACPI CA release have 5191193267Sjkimbeen updated. 5192151937Sjkim utilities/utcache.c /* Local cache interfaces */ 5193151937Sjkim utilities/utmutex.c /* Local mutex support */ 5194151937Sjkim utilities/utstate.c /* State object support */ 5195151937Sjkim interpreter/parser/psloop.c /* Main AML parse loop */ 5196151937Sjkim 5197193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5198193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5199193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5200193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5201193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5202193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5203193267Sjkimthe compiler options used during generation. 5204151937Sjkim 5205151937Sjkim Previous Release: 5206151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 5207151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 5208151937Sjkim Current Release: 5209151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 5210151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 5211151937Sjkim 5212151937Sjkim 5213151937Sjkim2) iASL Compiler/Disassembler: 5214151937Sjkim 5215193267SjkimFixed a regression introduced in version 20050513 where the use of a Package 5216193267Sjkimobject within a Case() statement caused a compile time exception. The 5217193267Sjkimoriginal behavior has been restored (a Match() operator is emitted.) 5218151937Sjkim 5219151937Sjkim---------------------------------------- 5220151937Sjkim17 June 2005. Summary of changes for version 20050617: 5221151937Sjkim 5222151937Sjkim1) ACPI CA Core Subsystem: 5223151937Sjkim 5224193267SjkimMoved the object cache operations into the OS interface layer (OSL) to allow 5225193267Sjkimthe host OS to handle these operations if desired (for example, the Linux 5226193267SjkimOSL will invoke the slab allocator). This support is optional; the compile 5227193267Sjkimtime define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache 5228193267Sjkimcode in the ACPI CA core. The new OSL interfaces are shown below. See 5229193267Sjkimutalloc.c for an example implementation, and acpiosxf.h for the exact 5230193267Sjkiminterface definitions. With assistance from Alexey Starikovskiy. 5231151937Sjkim AcpiOsCreateCache 5232151937Sjkim AcpiOsDeleteCache 5233151937Sjkim AcpiOsPurgeCache 5234151937Sjkim AcpiOsAcquireObject 5235151937Sjkim AcpiOsReleaseObject 5236151937Sjkim 5237193267SjkimModified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return 5238193267Sjkimand restore a flags parameter. This fits better with many OS lock models. 5239193267SjkimNote: the current execution state (interrupt handler or not) is no longer 5240193267Sjkimpassed to these interfaces. If necessary, the OSL must determine this state 5241193267Sjkimby itself, a simple and fast operation. With assistance from Alexey 5242151937SjkimStarikovskiy. 5243151937Sjkim 5244193267SjkimFixed a problem in the ACPI table handling where a valid XSDT was assumed 5245193267Sjkimpresent if the revision of the RSDP was 2 or greater. According to the ACPI 5246193267Sjkimspecification, the XSDT is optional in all cases, and the table manager 5247193267Sjkimtherefore now checks for both an RSDP >=2 and a valid XSDT pointer. 5248193267SjkimOtherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain 5249193267Sjkimonly the RSDT. 5250151937Sjkim 5251193267SjkimFixed an interpreter problem with the Mid() operator in the case of an input 5252193267Sjkimstring where the resulting output string is of zero length. It now correctly 5253193267Sjkimreturns a valid, null terminated string object instead of a string object 5254193267Sjkimwith a null pointer. 5255151937Sjkim 5256193267SjkimFixed a problem with the control method argument handling to allow a store 5257193267Sjkimto an Arg object that already contains an object of type Device. The Device 5258193267Sjkimobject is now correctly overwritten. Previously, an error was returned. 5259151937Sjkim 5260167802Sjkim 5261193267SjkimEnhanced the debugger Find command to emit object values in addition to the 5262193267Sjkimfound object pathnames. The output format is the same as the dump namespace 5263193267Sjkimcommand. 5264151937Sjkim 5265193267SjkimEnhanced the debugger Set command. It now has the ability to set the value 5266193267Sjkimof any Named integer object in the namespace (Previously, only method locals 5267193267Sjkimand args could be set.) 5268151937Sjkim 5269193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5270193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5271193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5272193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5273193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5274193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5275193267Sjkimthe compiler options used during generation. 5276151937Sjkim 5277151937Sjkim Previous Release: 5278151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 5279151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 5280151937Sjkim Current Release: 5281151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 5282151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 5283151937Sjkim 5284151937Sjkim 5285151937Sjkim2) iASL Compiler/Disassembler: 5286151937Sjkim 5287193267SjkimFixed a regression in the disassembler where if/else/while constructs were 5288193267Sjkimoutput incorrectly. This problem was introduced in the previous release 5289193267Sjkim(20050526). This problem also affected the single-step disassembly in the 5290193267Sjkimdebugger. 5291151937Sjkim 5292193267SjkimFixed a problem where compiling the reserved _OSI method would randomly (but 5293193267Sjkimrarely) produce compile errors. 5294151937Sjkim 5295193267SjkimEnhanced the disassembler to emit compilable code in the face of incorrect 5296193267SjkimAML resource descriptors. If the optional ResourceSourceIndex is present, 5297193267Sjkimbut the ResourceSource is not, do not emit the ResourceSourceIndex in the 5298193267Sjkimdisassembly. Otherwise, the resulting code cannot be compiled without 5299193267Sjkimerrors. 5300151937Sjkim 5301151937Sjkim---------------------------------------- 5302151937Sjkim26 May 2005. Summary of changes for version 20050526: 5303151937Sjkim 5304151937Sjkim1) ACPI CA Core Subsystem: 5305151937Sjkim 5306193267SjkimImplemented support to execute Type 1 and Type 2 AML opcodes appearing at 5307193267Sjkimthe module level (not within a control method.) These opcodes are executed 5308193267Sjkimexactly once at the time the table is loaded. This type of code was legal up 5309193267Sjkimuntil the release of ACPI 2.0B (2002) and is now supported within ACPI CA in 5310193267Sjkimorder to provide backwards compatibility with earlier BIOS implementations. 5311193267SjkimThis eliminates the "Encountered executable code at module level" warning 5312193267Sjkimthat was previously generated upon detection of such code. 5313151937Sjkim 5314193267SjkimFixed a problem in the interpreter where an AE_NOT_FOUND exception could 5315193267Sjkiminadvertently be generated during the lookup of namespace objects in the 5316193267Sjkimsecond pass parse of ACPI tables and control methods. It appears that this 5317193267Sjkimproblem could occur during the resolution of forward references to namespace 5318193267Sjkimobjects. 5319151937Sjkim 5320193267SjkimAdded the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function, 5321193267Sjkimcorresponding to the same #ifdef in the AcpiUtAcquireMutex function. This 5322193267Sjkimallows the deadlock detection debug code to be compiled out in the normal 5323193267Sjkimcase, improving mutex performance (and overall subsystem performance) 5324193267Sjkimconsiderably. 5325151937Sjkim 5326193267SjkimImplemented a handful of miscellaneous fixes for possible memory leaks on 5327193267Sjkimerror conditions and error handling control paths. These fixes were 5328193267Sjkimsuggested by FreeBSD and the Coverity Prevent source code analysis tool. 5329151937Sjkim 5330193267SjkimAdded a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c) 5331193267Sjkimto prevent a fault in this error case. 5332151937Sjkim 5333193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5334193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5335193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5336193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5337193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5338193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5339193267Sjkimthe compiler options used during generation. 5340151937Sjkim 5341151937Sjkim Previous Release: 5342151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 5343151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 5344151937Sjkim Current Release: 5345151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 5346151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 5347151937Sjkim 5348151937Sjkim 5349151937Sjkim2) iASL Compiler/Disassembler: 5350151937Sjkim 5351193267SjkimImplemented support to allow Type 1 and Type 2 ASL operators to appear at 5352193267Sjkimthe module level (not within a control method.) These operators will be 5353193267Sjkimexecuted once at the time the table is loaded. This type of code was legal 5354193267Sjkimup until the release of ACPI 2.0B (2002) and is now supported by the iASL 5355193267Sjkimcompiler in order to provide backwards compatibility with earlier BIOS ASL 5356193267Sjkimcode. 5357151937Sjkim 5358193267SjkimThe ACPI integer width (specified via the table revision ID or the -r 5359193267Sjkimoverride, 32 or 64 bits) is now used internally during compile-time constant 5360193267Sjkimfolding to ensure that constants are truncated to 32 bits if necessary. 5361193267SjkimPreviously, the revision ID value was only emitted in the AML table header. 5362151937Sjkim 5363193267SjkimAn error message is now generated for the Mutex and Method operators if the 5364193267SjkimSyncLevel parameter is outside the legal range of 0 through 15. 5365151937Sjkim 5366193267SjkimFixed a problem with the Method operator ParameterTypes list handling (ACPI 5367193267Sjkim3.0). Previously, more than 2 types or 2 arguments generated a syntax error. 5368193267SjkimThe actual underlying implementation of method argument typechecking is 5369193267Sjkimstill under development, however. 5370151937Sjkim 5371151937Sjkim---------------------------------------- 5372151937Sjkim13 May 2005. Summary of changes for version 20050513: 5373151937Sjkim 5374151937Sjkim1) ACPI CA Core Subsystem: 5375151937Sjkim 5376193267SjkimImplemented support for PCI Express root bridges -- added support for device 5377193267SjkimPNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup. 5378151937Sjkim 5379193267SjkimThe interpreter now automatically truncates incoming 64-bit constants to 32 5380193267Sjkimbits if currently executing out of a 32-bit ACPI table (Revision < 2). This 5381193267Sjkimalso affects the iASL compiler constant folding. (Note: as per below, the 5382193267SjkimiASL compiler no longer allows 64-bit constants within 32-bit tables.) 5383151937Sjkim 5384193267SjkimFixed a problem where string and buffer objects with "static" pointers 5385193267Sjkim(pointers to initialization data within an ACPI table) were not handled 5386193267Sjkimconsistently. The internal object copy operation now always copies the data 5387193267Sjkimto a newly allocated buffer, regardless of whether the source object is 5388193267Sjkimstatic or not. 5389151937Sjkim 5390193267SjkimFixed a problem with the FromBCD operator where an implicit result 5391193267Sjkimconversion was improperly performed while storing the result to the target 5392193267Sjkimoperand. Since this is an "explicit conversion" operator, the implicit 5393193267Sjkimconversion should never be performed on the output. 5394151937Sjkim 5395193267SjkimFixed a problem with the CopyObject operator where a copy to an existing 5396193267Sjkimnamed object did not always completely overwrite the existing object stored 5397193267Sjkimat name. Specifically, a buffer-to-buffer copy did not delete the existing 5398193267Sjkimbuffer. 5399151937Sjkim 5400193267SjkimReplaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and 5401193267Sjkimstructs for consistency. 5402151937Sjkim 5403193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5404193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5405193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5406193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5407193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5408193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5409193267Sjkimthe compiler options used during generation. 5410151937Sjkim 5411151937Sjkim Previous Release: 5412151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 5413151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 5414151937Sjkim Current Release: (Same sizes) 5415151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 5416151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 5417151937Sjkim 5418151937Sjkim 5419151937Sjkim2) iASL Compiler/Disassembler: 5420151937Sjkim 5421193267SjkimThe compiler now emits a warning if an attempt is made to generate a 64-bit 5422193267Sjkiminteger constant from within a 32-bit ACPI table (Revision < 2). The integer 5423193267Sjkimis truncated to 32 bits. 5424151937Sjkim 5425193267SjkimFixed a problem with large package objects: if the static length of the 5426193267Sjkimpackage is greater than 255, the "variable length package" opcode is 5427193267Sjkimemitted. Previously, this caused an error. This requires an update to the 5428193267SjkimACPI spec, since it currently (incorrectly) states that packages larger than 5429193267Sjkim255 elements are not allowed. 5430151937Sjkim 5431193267SjkimThe disassembler now correctly handles variable length packages and packages 5432193267Sjkimlarger than 255 elements. 5433151937Sjkim 5434151937Sjkim---------------------------------------- 5435151937Sjkim08 April 2005. Summary of changes for version 20050408: 5436151937Sjkim 5437151937Sjkim1) ACPI CA Core Subsystem: 5438151937Sjkim 5439193267SjkimFixed three cases in the interpreter where an "index" argument to an ASL 5440193267Sjkimfunction was still (internally) 32 bits instead of the required 64 bits. 5441193267SjkimThis was the Index argument to the Index, Mid, and Match operators. 5442151937Sjkim 5443193267SjkimThe "strupr" function is now permanently local (AcpiUtStrupr), since this is 5444193267Sjkimnot a POSIX-defined function and not present in most kernel-level C 5445193267Sjkimlibraries. All references to the C library strupr function have been removed 5446193267Sjkimfrom the headers. 5447151937Sjkim 5448193267SjkimCompleted the deployment of static functions/prototypes. All prototypes with 5449193267Sjkimthe static attribute have been moved from the headers to the owning C file. 5450151937Sjkim 5451193267SjkimImplemented an extract option (-e) for the AcpiBin utility (AML binary 5452193267Sjkimutility). This option allows the utility to extract individual ACPI tables 5453193267Sjkimfrom the output of AcpiDmp. It provides the same functionality of the 5454193267Sjkimacpixtract.pl perl script without the worry of setting the correct perl 5455193267Sjkimoptions. AcpiBin runs on Windows and has not yet been generated/validated in 5456193267Sjkimthe Linux/Unix environment (but should be soon). 5457193267Sjkim 5458193267SjkimUpdated and fixed the table dump option for AcpiBin (-d). This option 5459193267Sjkimconverts a single ACPI table to a hex/ascii file, similar to the output of 5460193267SjkimAcpiDmp. 5461151937Sjkim 5462193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5463193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5464193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5465193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5466193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5467193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5468193267Sjkimthe compiler options used during generation. 5469151937Sjkim 5470151937Sjkim Previous Release: 5471151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 5472151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 5473151937Sjkim Current Release: 5474151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 5475151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 5476151937Sjkim 5477151937Sjkim 5478151937Sjkim2) iASL Compiler/Disassembler: 5479151937Sjkim 5480193267SjkimDisassembler fix: Added a check to ensure that the table length found in the 5481193267SjkimACPI table header within the input file is not longer than the actual input 5482193267Sjkimfile size. This indicates some kind of file or table corruption. 5483151937Sjkim 5484151937Sjkim---------------------------------------- 5485151937Sjkim29 March 2005. Summary of changes for version 20050329: 5486151937Sjkim 5487151937Sjkim1) ACPI CA Core Subsystem: 5488151937Sjkim 5489193267SjkimAn error is now generated if an attempt is made to create a Buffer Field of 5490193267Sjkimlength zero (A CreateField with a length operand of zero.) 5491151937Sjkim 5492193267SjkimThe interpreter now issues a warning whenever executable code at the module 5493193267Sjkimlevel is detected during ACPI table load. This will give some idea of the 5494193267Sjkimprevalence of this type of code. 5495151937Sjkim 5496193267SjkimImplemented support for references to named objects (other than control 5497193267Sjkimmethods) within package objects. 5498151937Sjkim 5499193267SjkimEnhanced package object output for the debug object. Package objects are now 5500193267Sjkimcompletely dumped, showing all elements. 5501151937Sjkim 5502193267SjkimEnhanced miscellaneous object output for the debug object. Any object can 5503193267Sjkimnow be written to the debug object (for example, a device object can be 5504193267Sjkimwritten, and the type of the object will be displayed.) 5505151937Sjkim 5506193267SjkimThe "static" qualifier has been added to all local functions across both the 5507193267Sjkimcore subsystem and the iASL compiler. 5508151937Sjkim 5509193267SjkimThe number of "long" lines (> 80 chars) within the source has been 5510193267Sjkimsignificantly reduced, by about 1/3. 5511151937Sjkim 5512193267SjkimCleaned up all header files to ensure that all CA/iASL functions are 5513193267Sjkimprototyped (even static functions) and the formatting is consistent. 5514151937Sjkim 5515151937SjkimTwo new header files have been added, acopcode.h and acnames.h. 5516151937Sjkim 5517151937SjkimRemoved several obsolete functions that were no longer used. 5518151937Sjkim 5519193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5520193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5521193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5522193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5523193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5524193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5525193267Sjkimthe compiler options used during generation. 5526151937Sjkim 5527151937Sjkim Previous Release: 5528151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5529151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 5530151937Sjkim Current Release: 5531151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 5532151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 5533151937Sjkim 5534151937Sjkim 5535167802Sjkim 5536151937Sjkim2) iASL Compiler/Disassembler: 5537151937Sjkim 5538193267SjkimFixed a problem with the resource descriptor generation/support. For the 5539193267SjkimResourceSourceIndex and the ResourceSource fields, both must be present, or 5540193267Sjkimboth must be not present - can't have one without the other. 5541151937Sjkim 5542193267SjkimThe compiler now returns non-zero from the main procedure if any errors have 5543193267Sjkimoccurred during the compilation. 5544151937Sjkim 5545151937Sjkim 5546151937Sjkim---------------------------------------- 5547151937Sjkim09 March 2005. Summary of changes for version 20050309: 5548151937Sjkim 5549151937Sjkim1) ACPI CA Core Subsystem: 5550151937Sjkim 5551193267SjkimThe string-to-buffer implicit conversion code has been modified again after 5552193267Sjkima change to the ACPI specification. In order to match the behavior of the 5553193267Sjkimother major ACPI implementation, the target buffer is no longer truncated if 5554193267Sjkimthe source string is smaller than an existing target buffer. This change 5555193267Sjkimrequires an update to the ACPI spec, and should eliminate the recent 5556151937SjkimAE_AML_BUFFER_LIMIT issues. 5557151937Sjkim 5558193267SjkimThe "implicit return" support was rewritten to a new algorithm that solves 5559193267Sjkimthe general case. Rather than attempt to determine when a method is about to 5560193267Sjkimexit, the result of every ASL operator is saved momentarily until the very 5561193267Sjkimnext ASL operator is executed. Therefore, no matter how the method exits, 5562193267Sjkimthere will always be a saved implicit return value. This feature is only 5563193267Sjkimenabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate 5564193267SjkimAE_AML_NO_RETURN_VALUE errors when enabled. 5565151937Sjkim 5566193267SjkimImplemented implicit conversion support for the predicate (operand) of the 5567193267SjkimIf, Else, and While operators. String and Buffer arguments are automatically 5568193267Sjkimconverted to Integers. 5569151937Sjkim 5570193267SjkimChanged the string-to-integer conversion behavior to match the new ACPI 5571193267Sjkimerrata: "If no integer object exists, a new integer is created. The ASCII 5572193267Sjkimstring is interpreted as a hexadecimal constant. Each string character is 5573193267Sjkiminterpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting 5574193267Sjkimwith the first character as the most significant digit, and ending with the 5575193267Sjkimfirst non-hexadecimal character or end-of-string." This means that the first 5576193267Sjkimnon-hex character terminates the conversion and this is the code that was 5577193267Sjkimchanged. 5578151937Sjkim 5579193267SjkimFixed a problem where the ObjectType operator would fail (fault) when used 5580193267Sjkimon an Index of a Package which pointed to a null package element. The 5581193267Sjkimoperator now properly returns zero (Uninitialized) in this case. 5582151937Sjkim 5583193267SjkimFixed a problem where the While operator used excessive memory by not 5584193267Sjkimproperly popping the result stack during execution. There was no memory leak 5585193267Sjkimafter execution, however. (Code provided by Valery Podrezov.) 5586151937Sjkim 5587193267SjkimFixed a problem where references to control methods within Package objects 5588193267Sjkimcaused the method to be invoked, instead of producing a reference object 5589193267Sjkimpointing to the method. 5590151937Sjkim 5591193267SjkimRestructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to 5592193267Sjkimimprove performance and reduce code size. (Code provided by Alexey 5593193267SjkimStarikovskiy.) 5594151937Sjkim 5595193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5596193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5597193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5598193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5599193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5600193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5601193267Sjkimthe compiler options used during generation. 5602151937Sjkim 5603151937Sjkim Previous Release: 5604151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5605151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 5606151937Sjkim Current Release: 5607151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5608151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 5609151937Sjkim 5610151937Sjkim 5611151937Sjkim2) iASL Compiler/Disassembler: 5612151937Sjkim 5613193267SjkimFixed a problem with the Return operator with no arguments. Since the AML 5614193267Sjkimgrammar for the byte encoding requires an operand for the Return opcode, the 5615193267Sjkimcompiler now emits a Return(Zero) for this case. An ACPI specification 5616193267Sjkimupdate has been written for this case. 5617151937Sjkim 5618193267SjkimFor tables other than the DSDT, namepath optimization is automatically 5619193267Sjkimdisabled. This is because SSDTs can be loaded anywhere in the namespace, the 5620193267Sjkimcompiler has no knowledge of where, and thus cannot optimize namepaths. 5621151937Sjkim 5622193267SjkimAdded "ProcessorObj" to the ObjectTypeKeyword list. This object type was 5623193267Sjkiminadvertently omitted from the ACPI specification, and will require an 5624193267Sjkimupdate to the spec. 5625151937Sjkim 5626193267SjkimThe source file scan for ASCII characters is now optional (-a). This change 5627193267Sjkimwas made because some vendors place non-ascii characters within comments. 5628193267SjkimHowever, the scan is simply a brute-force byte compare to ensure all 5629193267Sjkimcharacters in the file are in the range 0x00 to 0x7F. 5630151937Sjkim 5631193267SjkimFixed a problem with the CondRefOf operator where the compiler was 5632193267Sjkiminappropriately checking for the existence of the target. Since the point of 5633193267Sjkimthe operator is to check for the existence of the target at run-time, the 5634193267Sjkimcompiler no longer checks for the target existence. 5635151937Sjkim 5636193267SjkimFixed a problem where errors generated from the internal AML interpreter 5637193267Sjkimduring constant folding were not handled properly, causing a fault. 5638151937Sjkim 5639193267SjkimFixed a problem with overly aggressive range checking for the Stall 5640193267Sjkimoperator. The valid range (max 255) is now only checked if the operand is of 5641193267Sjkimtype Integer. All other operand types cannot be statically checked. 5642151937Sjkim 5643193267SjkimFixed a problem where control method references within the RefOf, DeRefOf, 5644193267Sjkimand ObjectType operators were not treated properly. They are now treated as 5645193267Sjkimactual references, not method invocations. 5646151937Sjkim 5647193267SjkimFixed and enhanced the "list namespace" option (-ln). This option was broken 5648193267Sjkima number of releases ago. 5649151937Sjkim 5650193267SjkimImproved error handling for the Field, IndexField, and BankField operators. 5651193267SjkimThe compiler now cleanly reports and recovers from errors in the field 5652193267Sjkimcomponent (FieldUnit) list. 5653151937Sjkim 5654193267SjkimFixed a disassembler problem where the optional ResourceDescriptor fields 5655193267SjkimTRS and TTP were not always handled correctly. 5656151937Sjkim 5657151937SjkimDisassembler - Comments in output now use "//" instead of "/*" 5658151937Sjkim 5659151937Sjkim---------------------------------------- 5660151937Sjkim28 February 2005. Summary of changes for version 20050228: 5661151937Sjkim 5662151937Sjkim1) ACPI CA Core Subsystem: 5663151937Sjkim 5664193267SjkimFixed a problem where the result of an Index() operator (an object 5665193267Sjkimreference) must increment the reference count on the target object for the 5666193267Sjkimlife of the object reference. 5667151937Sjkim 5668193267SjkimImplemented AML Interpreter and Debugger support for the new ACPI 3.0 5669193267SjkimExtended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace 5670193267Sjkimresource descriptors. 5671151937Sjkim 5672193267SjkimImplemented support in the _OSI method for the ACPI 3.0 "Extended Address 5673193267SjkimSpace Descriptor" string, indicating interpreter support for the descriptors 5674193267Sjkimabove. 5675151937Sjkim 5676151937SjkimImplemented header support for the new ACPI 3.0 FADT flag bits. 5677151937Sjkim 5678193267SjkimImplemented header support for the new ACPI 3.0 PCI Express bits for the PM1 5679193267Sjkimstatus/enable registers. 5680151937Sjkim 5681193267SjkimUpdated header support for the MADT processor local Apic struct and MADT 5682193267Sjkimplatform interrupt source struct for new ACPI 3.0 fields. 5683151937Sjkim 5684151937SjkimImplemented header support for the SRAT and SLIT ACPI tables. 5685151937Sjkim 5686193267SjkimImplemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag 5687193267Sjkimat runtime. 5688151937Sjkim 5689193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5690193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5691193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5692193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5693193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5694193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5695193267Sjkimthe compiler options used during generation. 5696151937Sjkim 5697151937Sjkim Previous Release: 5698151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 5699151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 5700151937Sjkim Current Release: 5701151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5702151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 5703151937Sjkim 5704151937Sjkim 5705151937Sjkim2) iASL Compiler/Disassembler: 5706151937Sjkim 5707193267SjkimFixed a problem with the internal 64-bit String-to-integer conversion with 5708193267Sjkimstrings less than two characters long. 5709151937Sjkim 5710193267SjkimFixed a problem with constant folding where the result of the Index() 5711193267Sjkimoperator can not be considered a constant. This means that Index() cannot be 5712193267Sjkima type3 opcode and this will require an update to the ACPI specification. 5713151937Sjkim 5714193267SjkimDisassembler: Implemented support for the TTP, MTP, and TRS resource 5715193267Sjkimdescriptor fields. These fields were inadvertently ignored and not output in 5716193267Sjkimthe disassembly of the resource descriptor. 5717151937Sjkim 5718151937Sjkim 5719151937Sjkim ---------------------------------------- 5720151937Sjkim11 February 2005. Summary of changes for version 20050211: 5721151937Sjkim 5722151937Sjkim1) ACPI CA Core Subsystem: 5723151937Sjkim 5724193267SjkimImplemented ACPI 3.0 support for implicit conversion within the Match() 5725193267Sjkimoperator. MatchObjects can now be of type integer, buffer, or string instead 5726193267Sjkimof just type integer. Package elements are implicitly converted to the type 5727193267Sjkimof the MatchObject. This change aligns the behavior of Match() with the 5728193267Sjkimbehavior of the other logical operators (LLess(), etc.) It also requires an 5729193267Sjkimerrata change to the ACPI specification as this support was intended for 5730193267SjkimACPI 3.0, but was inadvertently omitted. 5731151937Sjkim 5732193267SjkimFixed a problem with the internal implicit "to buffer" conversion. Strings 5733193267Sjkimthat are converted to buffers will cause buffer truncation if the string is 5734193267Sjkimsmaller than the target buffer. Integers that are converted to buffers will 5735193267Sjkimnot cause buffer truncation, only zero extension (both as per the ACPI 5736193267Sjkimspec.) The problem was introduced when code was added to truncate the 5737193267Sjkimbuffer, but this should not be performed in all cases, only the string case. 5738151937Sjkim 5739193267SjkimFixed a problem with the Buffer and Package operators where the interpreter 5740193267Sjkimwould get confused if two such operators were used as operands to an ASL 5741193267Sjkimoperator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result 5742193267Sjkimstack was not being popped after the execution of these operators, resulting 5743193267Sjkimin an AE_NO_RETURN_VALUE exception. 5744151937Sjkim 5745193267SjkimFixed a problem with constructs of the form Store(Index(...),...). The 5746193267Sjkimreference object returned from Index was inadvertently resolved to an actual 5747193267Sjkimvalue. This problem was introduced in version 20050114 when the behavior of 5748193267SjkimStore() was modified to restrict the object types that can be used as the 5749151937Sjkimsource operand (to match the ACPI specification.) 5750151937Sjkim 5751193267SjkimReduced excessive stack use within the AcpiGetObjectInfo procedure. 5752151937Sjkim 5753193267SjkimAdded a fix to aclinux.h to allow generation of AcpiExec on Linux. 5754151937Sjkim 5755193267SjkimUpdated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct. 5756151937Sjkim 5757193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5758193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5759193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5760193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5761193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5762193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5763193267Sjkimthe compiler options used during generation. 5764151937Sjkim 5765151937Sjkim Previous Release: 5766151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 5767151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 5768151937Sjkim Current Release: 5769151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 5770151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 5771151937Sjkim 5772151937Sjkim 5773151937Sjkim2) iASL Compiler/Disassembler: 5774151937Sjkim 5775193267SjkimFixed a code generation problem in the constant folding optimization code 5776193267Sjkimwhere incorrect code was generated if a constant was reduced to a buffer 5777193267Sjkimobject (i.e., a reduced type 5 opcode.) 5778151937Sjkim 5779193267SjkimFixed a typechecking problem for the ToBuffer operator. Caused by an 5780193267Sjkimincorrect return type in the internal opcode information table. 5781151937Sjkim 5782151937Sjkim---------------------------------------- 5783151937Sjkim25 January 2005. Summary of changes for version 20050125: 5784151937Sjkim 5785151937Sjkim1) ACPI CA Core Subsystem: 5786151937Sjkim 5787193267SjkimFixed a recently introduced problem with the Global Lock where the 5788193267Sjkimunderlying semaphore was not created. This problem was introduced in 5789193267Sjkimversion 20050114, and caused an AE_AML_NO_OPERAND exception during an 5790193267SjkimAcquire() operation on _GL. 5791151937Sjkim 5792193267SjkimThe local object cache is now optional, and is disabled by default. Both 5793193267SjkimAcpiExec and the iASL compiler enable the cache because they run in user 5794193267Sjkimmode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE 5795193267Sjkimto enable the local cache. 5796151937Sjkim 5797193267SjkimFixed an issue in the internal function AcpiUtEvaluateObject concerning the 5798193267Sjkimoptional "implicit return" support where an error was returned if no return 5799193267Sjkimobject was expected, but one was implicitly returned. AE_OK is now returned 5800193267Sjkimin this case and the implicitly returned object is deleted. 5801193267SjkimAcpiUtEvaluateObject is only occasionally used, and only to execute reserved 5802193267Sjkimmethods such as _STA and _INI where the return type is known up front. 5803151937Sjkim 5804193267SjkimFixed a few issues with the internal convert-to-integer code. It now returns 5805193267Sjkiman error if an attempt is made to convert a null string, a string of only 5806193267Sjkimblanks/tabs, or a zero-length buffer. This affects both implicit conversion 5807193267Sjkimand explicit conversion via the ToInteger() operator. 5808151937Sjkim 5809193267SjkimThe internal debug code in AcpiUtAcquireMutex has been commented out. It is 5810193267Sjkimnot needed for normal operation and should increase the performance of the 5811193267Sjkimentire subsystem. The code remains in case it is needed for debug purposes 5812193267Sjkimagain. 5813151937Sjkim 5814193267SjkimThe AcpiExec source and makefile are included in the Unix/Linux package for 5815193267Sjkimthe first time. 5816151937Sjkim 5817193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5818193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5819193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5820193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5821193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5822193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5823193267Sjkimthe compiler options used during generation. 5824151937Sjkim 5825151937Sjkim Previous Release: 5826151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 5827151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 5828151937Sjkim Current Release: 5829151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 5830151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 5831151937Sjkim 5832151937Sjkim2) iASL Compiler/Disassembler: 5833151937Sjkim 5834193267SjkimSwitch/Case support: A warning is now issued if the type of the Switch value 5835193267Sjkimcannot be determined at compile time. For example, Switch(Arg0) will 5836193267Sjkimgenerate the warning, and the type is assumed to be an integer. As per the 5837193267SjkimACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the 5838193267Sjkimwarning. 5839151937Sjkim 5840193267SjkimSwitch/Case support: Implemented support for buffer and string objects as 5841193267Sjkimthe switch value. This is an ACPI 3.0 feature, now that LEqual supports 5842193267Sjkimbuffers and strings. 5843151937Sjkim 5844193267SjkimSwitch/Case support: The emitted code for the LEqual() comparisons now uses 5845193267Sjkimthe switch value as the first operand, not the second. The case value is now 5846193267Sjkimthe second operand, and this allows the case value to be implicitly 5847193267Sjkimconverted to the type of the switch value, not the other way around. 5848151937Sjkim 5849193267SjkimSwitch/Case support: Temporary variables are now emitted immediately within 5850193267Sjkimthe control method, not at the global level. This means that there are now 5851193267Sjkim36 temps available per-method, not 36 temps per-module as was the case with 5852193267Sjkimthe earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.) 5853151937Sjkim 5854151937Sjkim---------------------------------------- 5855151937Sjkim14 January 2005. Summary of changes for version 20050114: 5856151937Sjkim 5857193267SjkimAdded 2005 copyright to all module headers. This affects every module in 5858193267Sjkimthe core subsystem, iASL compiler, and the utilities. 5859151937Sjkim 5860151937Sjkim1) ACPI CA Core Subsystem: 5861151937Sjkim 5862193267SjkimFixed an issue with the String-to-Buffer conversion code where the string 5863193267Sjkimnull terminator was not included in the buffer after conversion, but there 5864193267Sjkimis existing ASL that assumes the string null terminator is included. This is 5865193267Sjkimthe root of the ACPI_AML_BUFFER_LIMIT regression. This problem was 5866193267Sjkimintroduced in the previous version when the code was updated to correctly 5867193267Sjkimset the converted buffer size as per the ACPI specification. The ACPI spec 5868193267Sjkimis ambiguous and will be updated to specify that the null terminator must be 5869193267Sjkimincluded in the converted buffer. This also affects the ToBuffer() ASL 5870193267Sjkimoperator. 5871151937Sjkim 5872193267SjkimFixed a problem with the Mid() ASL/AML operator where it did not work 5873193267Sjkimcorrectly on Buffer objects. Newly created sub-buffers were not being marked 5874193267Sjkimas initialized. 5875151937Sjkim 5876167802Sjkim 5877193267SjkimFixed a problem in AcpiTbFindTable where incorrect string compares were 5878193267Sjkimperformed on the OemId and OemTableId table header fields. These fields are 5879193267Sjkimnot null terminated, so strncmp is now used instead of strcmp. 5880151937Sjkim 5881193267SjkimImplemented a restriction on the Store() ASL/AML operator to align the 5882193267Sjkimbehavior with the ACPI specification. Previously, any object could be used 5883193267Sjkimas the source operand. Now, the only objects that may be used are Integers, 5884193267SjkimBuffers, Strings, Packages, Object References, and DDB Handles. If 5885193267Sjkimnecessary, the original behavior can be restored by enabling the 5886151937SjkimEnableInterpreterSlack flag. 5887151937Sjkim 5888193267SjkimEnhanced the optional "implicit return" support to allow an implicit return 5889193267Sjkimvalue from methods that are invoked externally via the AcpiEvaluateObject 5890193267Sjkiminterface. This enables implicit returns from the _STA and _INI methods, 5891193267Sjkimfor example. 5892151937Sjkim 5893193267SjkimChanged the Revision() ASL/AML operator to return the current version of the 5894193267SjkimAML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned 5895193267Sjkimthe supported ACPI version (This is the function of the _REV method). 5896151937Sjkim 5897193267SjkimUpdated the _REV predefined method to return the currently supported version 5898193267Sjkimof ACPI, now 3. 5899151937Sjkim 5900151937SjkimImplemented batch mode option for the AcpiExec utility (-b). 5901151937Sjkim 5902193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5903193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5904193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5905193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5906193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5907193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5908193267Sjkimthe compiler options used during generation. 5909151937Sjkim 5910151937Sjkim Previous Release: 5911151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5912151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5913151937Sjkim Current Release: 5914151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 5915151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 5916151937Sjkim 5917151937Sjkim---------------------------------------- 5918151937Sjkim10 December 2004. Summary of changes for version 20041210: 5919151937Sjkim 5920193267SjkimACPI 3.0 support is nearing completion in both the iASL compiler and the 5921193267SjkimACPI CA core subsystem. 5922151937Sjkim 5923151937Sjkim1) ACPI CA Core Subsystem: 5924151937Sjkim 5925193267SjkimFixed a problem in the ToDecimalString operator where the resulting string 5926193267Sjkimlength was incorrectly calculated. The length is now calculated exactly, 5927193267Sjkimeliminating incorrect AE_STRING_LIMIT exceptions. 5928151937Sjkim 5929193267SjkimFixed a problem in the ToHexString operator to allow a maximum 200 character 5930193267Sjkimstring to be produced. 5931151937Sjkim 5932193267SjkimFixed a problem in the internal string-to-buffer and buffer-to-buffer copy 5933193267Sjkimroutine where the length of the resulting buffer was not truncated to the 5934193267Sjkimnew size (if the target buffer already existed). 5935151937Sjkim 5936193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5937193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5938193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5939193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5940193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5941193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5942193267Sjkimthe compiler options used during generation. 5943151937Sjkim 5944151937Sjkim Previous Release: 5945151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5946151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5947151937Sjkim Current Release: 5948151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5949151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5950151937Sjkim 5951151937Sjkim 5952151937Sjkim2) iASL Compiler/Disassembler: 5953151937Sjkim 5954193267SjkimImplemented the new ACPI 3.0 resource template macros - DWordSpace, 5955193267SjkimExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace. 5956193267SjkimIncludes support in the disassembler. 5957151937Sjkim 5958193267SjkimImplemented support for the new (ACPI 3.0) parameter to the Register macro, 5959193267SjkimAccessSize. 5960151937Sjkim 5961193267SjkimFixed a problem where the _HE resource name for the Interrupt macro was 5962193267Sjkimreferencing bit 0 instead of bit 1. 5963151937Sjkim 5964193267SjkimImplemented check for maximum 255 interrupts in the Interrupt macro. 5965151937Sjkim 5966193267SjkimFixed a problem with the predefined resource descriptor names where 5967193267Sjkimincorrect AML code was generated if the offset within the resource buffer 5968193267Sjkimwas 0 or 1. The optimizer shortened the AML code to a single byte opcode 5969193267Sjkimbut did not update the surrounding package lengths. 5970151937Sjkim 5971193267SjkimChanges to the Dma macro: All channels within the channel list must be in 5972193267Sjkimthe range 0-7. Maximum 8 channels can be specified. BusMaster operand is 5973193267Sjkimoptional (default is BusMaster). 5974151937Sjkim 5975193267SjkimImplemented check for maximum 7 data bytes for the VendorShort macro. 5976151937Sjkim 5977193267SjkimThe ReadWrite parameter is now optional for the Memory32 and similar macros. 5978151937Sjkim 5979151937Sjkim---------------------------------------- 5980151937Sjkim03 December 2004. Summary of changes for version 20041203: 5981151937Sjkim 5982151937Sjkim1) ACPI CA Core Subsystem: 5983151937Sjkim 5984193267SjkimThe low-level field insertion/extraction code (exfldio) has been completely 5985193267Sjkimrewritten to eliminate unnecessary complexity, bugs, and boundary 5986193267Sjkimconditions. 5987151937Sjkim 5988193267SjkimFixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString 5989193267Sjkimoperators where the input operand could be inadvertently deleted if no 5990193267Sjkimconversion was necessary (e.g., if the input to ToInteger was an Integer 5991193267Sjkimobject.) 5992151937Sjkim 5993193267SjkimFixed a problem with the ToDecimalString and ToHexString where an incorrect 5994193267Sjkimexception code was returned if the resulting string would be > 200 chars. 5995193267SjkimAE_STRING_LIMIT is now returned. 5996151937Sjkim 5997193267SjkimFixed a problem with the Concatenate operator where AE_OK was always 5998193267Sjkimreturned, even if the operation failed. 5999151937Sjkim 6000193267SjkimFixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128 6001193267Sjkimsemaphores to be allocated. 6002151937Sjkim 6003193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6004193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6005193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6006193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6007193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6008193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6009193267Sjkimthe compiler options used during generation. 6010151937Sjkim 6011151937Sjkim Previous Release: 6012151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 6013151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 6014151937Sjkim Current Release: 6015151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 6016151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 6017151937Sjkim 6018151937Sjkim 6019151937Sjkim2) iASL Compiler/Disassembler: 6020151937Sjkim 6021193267SjkimFixed typechecking for the ObjectType and SizeOf operators. Problem was 6022193267Sjkimrecently introduced in 20041119. 6023151937Sjkim 6024193267SjkimFixed a problem with the ToUUID macro where the upper nybble of each buffer 6025193267Sjkimbyte was inadvertently set to zero. 6026151937Sjkim 6027151937Sjkim---------------------------------------- 6028138287Smarks19 November 2004. Summary of changes for version 20041119: 6029138287Smarks 6030138287Smarks1) ACPI CA Core Subsystem: 6031138287Smarks 6032193267SjkimFixed a problem in the internal ConvertToInteger routine where new integers 6033193267Sjkimwere not truncated to 32 bits for 32-bit ACPI tables. This routine converts 6034193267Sjkimbuffers and strings to integers. 6035138287Smarks 6036193267SjkimImplemented support to store a value to an Index() on a String object. This 6037193267Sjkimis an ACPI 2.0 feature that had not yet been implemented. 6038138287Smarks 6039193267SjkimImplemented new behavior for storing objects to individual package elements 6040193267Sjkim(via the Index() operator). The previous behavior was to invoke the implicit 6041193267Sjkimconversion rules if an object was already present at the index. The new 6042193267Sjkimbehavior is to simply delete any existing object and directly store the new 6043193267Sjkimobject. Although the ACPI specification seems unclear on this subject, other 6044193267SjkimACPI implementations behave in this manner. (This is the root of the 6045193267SjkimAE_BAD_HEX_CONSTANT issue.) 6046138287Smarks 6047193267SjkimModified the RSDP memory scan mechanism to support the extended checksum for 6048193267SjkimACPI 2.0 (and above) RSDPs. Note that the search continues until a valid 6049193267SjkimRSDP signature is found with a valid checksum. 6050138287Smarks 6051193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6052193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6053193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6054193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6055193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6056193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6057193267Sjkimthe compiler options used during generation. 6058138287Smarks 6059151937Sjkim Previous Release: 6060151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 6061151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 6062151937Sjkim Current Release: 6063151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 6064151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 6065138287Smarks 6066138287Smarks 6067138287Smarks2) iASL Compiler/Disassembler: 6068138287Smarks 6069138287SmarksFixed a missing semicolon in the aslcompiler.y file. 6070138287Smarks 6071138287Smarks---------------------------------------- 6072138287Smarks05 November 2004. Summary of changes for version 20041105: 6073138287Smarks 6074138287Smarks1) ACPI CA Core Subsystem: 6075138287Smarks 6076193267SjkimImplemented support for FADT revision 2. This was an interim table (between 6077193267SjkimACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register. 6078138287Smarks 6079193267SjkimImplemented optional support to allow uninitialized LocalX and ArgX 6080193267Sjkimvariables in a control method. The variables are initialized to an Integer 6081193267Sjkimobject with a value of zero. This support is enabled by setting the 6082193267SjkimAcpiGbl_EnableInterpreterSlack flag to TRUE. 6083138287Smarks 6084193267SjkimImplemented support for Integer objects for the SizeOf operator. Either 4 6085193267Sjkimor 8 is returned, depending on the current integer size (32-bit or 64-bit, 6086193267Sjkimdepending on the parent table revision). 6087138287Smarks 6088193267SjkimFixed a problem in the implementation of the SizeOf and ObjectType operators 6089193267Sjkimwhere the operand was resolved to a value too early, causing incorrect 6090193267Sjkimreturn values for some objects. 6091138287Smarks 6092138287SmarksFixed some possible memory leaks during exceptional conditions. 6093138287Smarks 6094193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6095193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6096193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6097193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6098193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6099193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6100193267Sjkimthe compiler options used during generation. 6101138287Smarks 6102138287Smarks Previous Release: 6103138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 6104138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 6105138287Smarks Current Release: 6106138287Smarks Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 6107138287Smarks Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 6108138287Smarks 6109138287Smarks 6110138287Smarks2) iASL Compiler/Disassembler: 6111138287Smarks 6112138287SmarksImplemented support for all ACPI 3.0 reserved names and methods. 6113138287Smarks 6114193267SjkimImplemented all ACPI 3.0 grammar elements in the front-end, including 6115193267Sjkimsupport for semicolons. 6116138287Smarks 6117138287SmarksImplemented the ACPI 3.0 Function() and ToUUID() macros 6118138287Smarks 6119193267SjkimFixed a problem in the disassembler where a Scope() operator would not be 6120193267Sjkimemitted properly if the target of the scope was in another table. 6121138287Smarks 6122138287Smarks---------------------------------------- 6123138287Smarks15 October 2004. Summary of changes for version 20041015: 6124138287Smarks 6125193267SjkimNote: ACPI CA is currently undergoing an in-depth and complete formal 6126193267Sjkimevaluation to test/verify the following areas. Other suggestions are 6127193267Sjkimwelcome. This will result in an increase in the frequency of releases and 6128193267Sjkimthe number of bug fixes in the next few months. 6129138287Smarks - Functional tests for all ASL/AML operators 6130138287Smarks - All implicit/explicit type conversions 6131138287Smarks - Bit fields and operation regions 6132138287Smarks - 64-bit math support and 32-bit-only "truncated" math support 6133138287Smarks - Exceptional conditions, both compiler and interpreter 6134138287Smarks - Dynamic object deletion and memory leaks 6135138287Smarks - ACPI 3.0 support when implemented 6136138287Smarks - External interfaces to the ACPI subsystem 6137138287Smarks 6138138287Smarks 6139138287Smarks1) ACPI CA Core Subsystem: 6140138287Smarks 6141193267SjkimFixed two alignment issues on 64-bit platforms - within debug statements in 6142193267SjkimAcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address 6143193267Sjkimfield within the non-aligned ACPI generic address structure. 6144138287Smarks 6145193267SjkimFixed a problem in the Increment and Decrement operators where incorrect 6146193267Sjkimoperand resolution could result in the inadvertent modification of the 6147193267Sjkimoriginal integer when the integer is passed into another method as an 6148193267Sjkimargument and the arg is then incremented/decremented. 6149138287Smarks 6150193267SjkimFixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit 6151193267SjkimBCD number were truncated during conversion. 6152138287Smarks 6153193267SjkimFixed a problem in the ToDecimal operator where the length of the resulting 6154193267Sjkimstring could be set incorrectly too long if the input operand was a Buffer 6155193267Sjkimobject. 6156138287Smarks 6157193267SjkimFixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0) 6158193267Sjkimwithin a buffer would prematurely terminate a compare between buffer 6159193267Sjkimobjects. 6160138287Smarks 6161193267SjkimAdded a check for string overflow (>200 characters as per the ACPI 6162193267Sjkimspecification) during the Concatenate operator with two string operands. 6163138287Smarks 6164193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6165193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6166193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6167193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6168193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6169193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6170193267Sjkimthe compiler options used during generation. 6171138287Smarks 6172138287Smarks Previous Release: 6173138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 6174138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 6175138287Smarks Current Release: 6176138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 6177138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 6178138287Smarks 6179138287Smarks 6180167802Sjkim 6181138287Smarks2) iASL Compiler/Disassembler: 6182138287Smarks 6183193267SjkimAllow the use of the ObjectType operator on uninitialized Locals and Args 6184193267Sjkim(returns 0 as per the ACPI specification). 6185138287Smarks 6186193267SjkimFixed a problem where the compiler would fault if there was a syntax error 6187193267Sjkimin the FieldName of all of the various CreateXXXField operators. 6188138287Smarks 6189193267SjkimDisallow the use of lower case letters within the EISAID macro, as per the 6190193267SjkimACPI specification. All EISAID strings must be of the form "UUUNNNN" Where 6191193267SjkimU is an uppercase letter and N is a hex digit. 6192138287Smarks 6193138287Smarks 6194138287Smarks---------------------------------------- 6195138287Smarks06 October 2004. Summary of changes for version 20041006: 6196138287Smarks 6197138287Smarks1) ACPI CA Core Subsystem: 6198138287Smarks 6199193267SjkimImplemented support for the ACPI 3.0 Timer operator. This ASL function 6200193267Sjkimimplements a 64-bit timer with 100 nanosecond granularity. 6201138287Smarks 6202193267SjkimDefined a new OSL interface, AcpiOsGetTimer. This interface is used to 6203193267Sjkimimplement the ACPI 3.0 Timer operator. This allows the host OS to implement 6204193267Sjkimthe timer with the best clock available. Also, it keeps the core subsystem 6205193267Sjkimout of the clock handling business, since the host OS (usually) performs 6206193267Sjkimthis function. 6207138287Smarks 6208193267SjkimFixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write) 6209193267Sjkimfunctions use a 64-bit address which is part of the packed ACPI Generic 6210193267SjkimAddress Structure. Since the structure is non-aligned, the alignment macros 6211193267Sjkimare now used to extract the address to a local variable before use. 6212138287Smarks 6213193267SjkimFixed a problem where the ToInteger operator assumed all input strings were 6214193267Sjkimhexadecimal. The operator now handles both decimal strings and hex strings 6215193267Sjkim(prefixed with "0x"). 6216138287Smarks 6217193267SjkimFixed a problem where the string length in the string object created as a 6218193267Sjkimresult of the internal ConvertToString procedure could be incorrect. This 6219193267Sjkimpotentially affected all implicit conversions and also the ToDecimalString 6220193267Sjkimand ToHexString operators. 6221138287Smarks 6222193267SjkimFixed two problems in the ToString operator. If the length parameter was 6223193267Sjkimzero, an incorrect string object was created and the value of the input 6224193267Sjkimlength parameter was inadvertently changed from zero to Ones. 6225138287Smarks 6226193267SjkimFixed a problem where the optional ResourceSource string in the ExtendedIRQ 6227193267Sjkimresource macro was ignored. 6228138287Smarks 6229193267SjkimSimplified the interfaces to the internal division functions, reducing code 6230193267Sjkimsize and complexity. 6231138287Smarks 6232193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6233193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6234193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6235193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6236193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6237193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6238193267Sjkimthe compiler options used during generation. 6239138287Smarks 6240138287Smarks Previous Release: 6241138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 6242138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 6243138287Smarks Current Release: 6244138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 6245138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 6246138287Smarks 6247138287Smarks 6248138287Smarks2) iASL Compiler/Disassembler: 6249138287Smarks 6250138287SmarksImplemented support for the ACPI 3.0 Timer operator. 6251138287Smarks 6252193267SjkimFixed a problem where the Default() operator was inadvertently ignored in a 6253193267SjkimSwitch/Case block. This was a problem in the translation of the Switch 6254193267Sjkimstatement to If...Else pairs. 6255138287Smarks 6256193267SjkimAdded support to allow a standalone Return operator, with no parentheses (or 6257193267Sjkimoperands). 6258138287Smarks 6259193267SjkimFixed a problem with code generation for the ElseIf operator where the 6260193267Sjkimtranslated Else...If parse tree was improperly constructed leading to the 6261193267Sjkimloss of some code. 6262138287Smarks 6263138287Smarks---------------------------------------- 6264138287Smarks22 September 2004. Summary of changes for version 20040922: 6265138287Smarks 6266138287Smarks1) ACPI CA Core Subsystem: 6267138287Smarks 6268193267SjkimFixed a problem with the implementation of the LNot() operator where "Ones" 6269193267Sjkimwas not returned for the TRUE case. Changed the code to return Ones instead 6270193267Sjkimof (!Arg) which was usually 1. This change affects iASL constant folding for 6271193267Sjkimthis operator also. 6272138287Smarks 6273193267SjkimFixed a problem in AcpiUtInitializeBuffer where an existing buffer was not 6274193267Sjkiminitialized properly -- Now zero the entire buffer in this case where the 6275193267Sjkimbuffer already exists. 6276138287Smarks 6277193267SjkimChanged the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 6278193267SjkimMilliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all 6279193267Sjkimrelated code considerably. This will require changes/updates to all OS 6280193267Sjkiminterface layers (OSLs.) 6281138287Smarks 6282193267SjkimImplemented a new external interface, AcpiInstallExceptionHandler, to allow 6283193267Sjkima system exception handler to be installed. This handler is invoked upon any 6284193267Sjkimrun-time exception that occurs during control method execution. 6285138287Smarks 6286193267SjkimAdded support for the DSDT in AcpiTbFindTable. This allows the 6287138287SmarksDataTableRegion() operator to access the local copy of the DSDT. 6288138287Smarks 6289193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6290193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6291193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6292193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6293193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6294193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6295193267Sjkimthe compiler options used during generation. 6296138287Smarks 6297138287Smarks Previous Release: 6298138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 6299138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 6300138287Smarks Current Release: 6301138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 6302138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 6303138287Smarks 6304138287Smarks 6305138287Smarks2) iASL Compiler/Disassembler: 6306138287Smarks 6307193267SjkimFixed a problem with constant folding and the LNot operator. LNot was 6308193267Sjkimreturning 1 in the TRUE case, not Ones as per the ACPI specification. This 6309193267Sjkimcould result in the generation of an incorrect folded/reduced constant. 6310138287Smarks 6311193267SjkimEnd-Of-File is now allowed within a "//"-style comment. A parse error no 6312193267Sjkimlonger occurs if such a comment is at the very end of the input ASL source 6313193267Sjkimfile. 6314138287Smarks 6315193267SjkimImplemented the "-r" option to override the Revision in the table header. 6316193267SjkimThe initial use of this option will be to simplify the evaluation of the AML 6317193267Sjkiminterpreter by allowing a single ASL source module to be compiled for either 6318193267Sjkim32-bit or 64-bit integers. 6319138287Smarks 6320138287Smarks 6321138287Smarks---------------------------------------- 6322138287Smarks27 August 2004. Summary of changes for version 20040827: 6323138287Smarks 6324138287Smarks1) ACPI CA Core Subsystem: 6325138287Smarks 6326193267Sjkim- Implemented support for implicit object conversion in the non-numeric 6327193267Sjkimlogical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and 6328193267SjkimLNotEqual.) Any combination of Integers/Strings/Buffers may now be used; 6329193267Sjkimthe second operand is implicitly converted on the fly to match the type of 6330193267Sjkimthe first operand. For example: 6331138287Smarks 6332138287Smarks LEqual (Source1, Source2) 6333138287Smarks 6334193267SjkimSource1 and Source2 must each evaluate to an integer, a string, or a buffer. 6335193267SjkimThe data type of Source1 dictates the required type of Source2. Source2 is 6336193267Sjkimimplicitly converted if necessary to match the type of Source1. 6337138287Smarks 6338193267Sjkim- Updated and corrected the behavior of the string conversion support. The 6339193267Sjkimrules concerning conversion of buffers to strings (according to the ACPI 6340193267Sjkimspecification) are as follows: 6341138287Smarks 6342193267SjkimToDecimalString - explicit byte-wise conversion of buffer to string of 6343193267Sjkimdecimal values (0-255) separated by commas. ToHexString - explicit byte-wise 6344193267Sjkimconversion of buffer to string of hex values (0-FF) separated by commas. 6345193267SjkimToString - explicit byte-wise conversion of buffer to string. Byte-by-byte 6346193267Sjkimcopy with no transform except NULL terminated. Any other implicit buffer-to- 6347193267Sjkimstring conversion - byte-wise conversion of buffer to string of hex values 6348193267Sjkim(0-FF) separated by spaces. 6349138287Smarks 6350138287Smarks- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. 6351138287Smarks 6352193267Sjkim- Fixed a problem in AcpiNsGetPathnameLength where the returned length was 6353193267Sjkimone byte too short in the case of a node in the root scope. This could 6354193267Sjkimcause a fault during debug output. 6355138287Smarks 6356193267Sjkim- Code and Data Size: Current and previous core subsystem library sizes are 6357193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6358193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6359193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6360193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6361193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6362193267Sjkimthe compiler options used during generation. 6363138287Smarks 6364138287Smarks Previous Release: 6365138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 6366138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 6367138287Smarks Current Release: 6368138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 6369138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 6370138287Smarks 6371138287Smarks 6372138287Smarks2) iASL Compiler/Disassembler: 6373138287Smarks 6374138287Smarks- Fixed a Linux generation error. 6375138287Smarks 6376138287Smarks 6377138287Smarks---------------------------------------- 6378138287Smarks16 August 2004. Summary of changes for version 20040816: 6379138287Smarks 6380138287Smarks1) ACPI CA Core Subsystem: 6381138287Smarks 6382193267SjkimDesigned and implemented support within the AML interpreter for the so- 6383193267Sjkimcalled "implicit return". This support returns the result of the last ASL 6384193267Sjkimoperation within a control method, in the absence of an explicit Return() 6385193267Sjkimoperator. A few machines depend on this behavior, even though it is not 6386193267Sjkimexplicitly supported by the ASL language. It is optional support that can 6387193267Sjkimbe enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag. 6388138287Smarks 6389193267SjkimRemoved support for the PCI_Config address space from the internal low level 6390193267Sjkimhardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This 6391193267Sjkimsupport was not used internally, and would not work correctly anyway because 6392193267Sjkimthe PCI bus number and segment number were not supported. There are 6393193267Sjkimseparate interfaces for PCI configuration space access because of the unique 6394138287Smarksinterface. 6395138287Smarks 6396193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6397193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6398193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6399193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6400193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6401193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6402193267Sjkimthe compiler options used during generation. 6403138287Smarks 6404138287Smarks Previous Release: 6405138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 6406138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 6407138287Smarks Current Release: 6408138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 6409138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 6410138287Smarks 6411138287Smarks 6412138287Smarks2) iASL Compiler/Disassembler: 6413138287Smarks 6414193267SjkimFixed a problem where constants in ASL expressions at the root level (not 6415193267Sjkimwithin a control method) could be inadvertently truncated during code 6416193267Sjkimgeneration. This problem was introduced in the 20040715 release. 6417138287Smarks 6418138287Smarks 6419138287Smarks---------------------------------------- 6420138287Smarks15 July 2004. Summary of changes for version 20040715: 6421138287Smarks 6422138287Smarks1) ACPI CA Core Subsystem: 6423138287Smarks 6424193267SjkimRestructured the internal HW GPE interfaces to pass/track the current state 6425193267Sjkimof interrupts (enabled/disabled) in order to avoid possible deadlock and 6426193267Sjkimincrease flexibility of the interfaces. 6427138287Smarks 6428193267SjkimImplemented a "lexicographical compare" for String and Buffer objects within 6429193267Sjkimthe logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -- 6430193267Sjkimas per further clarification to the ACPI specification. Behavior is similar 6431193267Sjkimto C library "strcmp". 6432138287Smarks 6433193267SjkimCompleted a major reduction in CPU stack use for the AcpiGetFirmwareTable 6434193267Sjkimexternal function. In the 32-bit non-debug case, the stack use has been 6435193267Sjkimreduced from 168 bytes to 32 bytes. 6436138287Smarks 6437193267SjkimDeployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack, 6438193267Sjkimwhose purpose is to allow the AML interpreter to forgive certain bad AML 6439193267Sjkimconstructs. Default setting is FALSE. 6440138287Smarks 6441193267SjkimImplemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO 6442193267Sjkimsupport code. If enabled, it allows field access to go beyond the end of a 6443193267Sjkimregion definition if the field is within the region length rounded up to the 6444193267Sjkimnext access width boundary (a common coding error.) 6445138287Smarks 6446193267SjkimRenamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to 6447193267SjkimACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these 6448193267Sjkimsymbols are lowercased by the latest version of the AcpiSrc tool. 6449138287Smarks 6450193267SjkimThe prototypes for the PCI interfaces in acpiosxf.h have been updated to 6451193267Sjkimrename "Register" to simply "Reg" to prevent certain compilers from 6452193267Sjkimcomplaining. 6453138287Smarks 6454193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6455193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6456193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6457193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6458193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6459193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6460193267Sjkimthe compiler options used during generation. 6461138287Smarks 6462138287Smarks Previous Release: 6463138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 6464138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 6465138287Smarks Current Release: 6466138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 6467138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 6468138287Smarks 6469138287Smarks 6470138287Smarks2) iASL Compiler/Disassembler: 6471138287Smarks 6472193267SjkimImplemented full support for Package objects within the Case() operator. 6473193267SjkimNote: The Break() operator is currently not supported within Case blocks 6474193267Sjkim(TermLists) as there is some question about backward compatibility with ACPI 6475193267Sjkim1.0 interpreters. 6476138287Smarks 6477167802Sjkim 6478193267SjkimFixed a problem where complex terms were not supported properly within the 6479193267SjkimSwitch() operator. 6480138287Smarks 6481193267SjkimEliminated extraneous warning for compiler-emitted reserved names of the 6482193267Sjkimform "_T_x". (Used in Switch/Case operators.) 6483138287Smarks 6484193267SjkimEliminated optimization messages for "_T_x" objects and small constants 6485193267Sjkimwithin the DefinitionBlock operator. 6486138287Smarks 6487138287Smarks 6488138287Smarks---------------------------------------- 6489138287Smarks15 June 2004. Summary of changes for version 20040615: 6490138287Smarks 6491138287Smarks1) ACPI CA Core Subsystem: 6492138287Smarks 6493193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 6494193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 6495193267SjkimLLessEqual. 6496138287Smarks 6497193267SjkimAll directory names in the entire source package are lower case, as they 6498193267Sjkimwere in earlier releases. 6499138287Smarks 6500193267SjkimImplemented "Disassemble" command in the AML debugger that will disassemble 6501193267Sjkima single control method. 6502138287Smarks 6503193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6504193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6505193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6506193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6507193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6508193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6509193267Sjkimthe compiler options used during generation. 6510138287Smarks 6511138287Smarks Previous Release: 6512138287Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 6513138287Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 6514167802Sjkim 6515138287Smarks Current Release: 6516138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 6517138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 6518138287Smarks 6519138287Smarks 6520138287Smarks2) iASL Compiler/Disassembler: 6521138287Smarks 6522193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 6523193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 6524193267SjkimLLessEqual. 6525138287Smarks 6526193267SjkimAll directory names in the entire source package are lower case, as they 6527193267Sjkimwere in earlier releases. 6528138287Smarks 6529193267SjkimFixed a fault when using the -g or -d<nofilename> options if the FADT was 6530193267Sjkimnot found. 6531138287Smarks 6532193267SjkimFixed an issue with the Windows version of the compiler where later versions 6533193267Sjkimof Windows place the FADT in the registry under the name "FADT" and not 6534193267Sjkim"FACP" as earlier versions did. This applies when using the -g or - 6535193267Sjkimd<nofilename> options. The compiler now looks for both strings as 6536193267Sjkimnecessary. 6537138287Smarks 6538193267SjkimFixed a problem with compiler namepath optimization where a namepath within 6539193267Sjkimthe Scope() operator could not be optimized if the namepath was a subpath of 6540193267Sjkimthe current scope path. 6541138287Smarks 6542138287Smarks---------------------------------------- 6543131440Smarks27 May 2004. Summary of changes for version 20040527: 6544131440Smarks 6545131440Smarks1) ACPI CA Core Subsystem: 6546131440Smarks 6547193267SjkimCompleted a new design and implementation for EBDA (Extended BIOS Data Area) 6548193267Sjkimsupport in the RSDP scan code. The original code improperly scanned for the 6549193267SjkimEBDA by simply scanning from memory location 0 to 0x400. The correct method 6550193267Sjkimis to first obtain the EBDA pointer from within the BIOS data area, then 6551193267Sjkimscan 1K of memory starting at the EBDA pointer. There appear to be few if 6552131440Smarksany machines that place the RSDP in the EBDA, however. 6553131440Smarks 6554193267SjkimIntegrated a fix for a possible fault during evaluation of BufferField 6555193267Sjkimarguments. Obsolete code that was causing the problem was removed. 6556131440Smarks 6557193267SjkimFound and fixed a problem in the Field Support Code where data could be 6558193267Sjkimcorrupted on a bit field read that starts on an aligned boundary but does 6559193267Sjkimnot end on an aligned boundary. Merged the read/write "datum length" 6560193267Sjkimcalculation code into a common procedure. 6561131440Smarks 6562131440SmarksRolled in a couple of changes to the FreeBSD-specific header. 6563131440Smarks 6564167802Sjkim 6565193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6566193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6567193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6568193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6569193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6570193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6571193267Sjkimthe compiler options used during generation. 6572131440Smarks 6573131440Smarks Previous Release: 6574131440Smarks Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6575131440Smarks Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 6576131440Smarks Current Release: 6577131440Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 6578131440Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 6579131440Smarks 6580131440Smarks 6581131440Smarks2) iASL Compiler/Disassembler: 6582131440Smarks 6583193267SjkimFixed a generation warning produced by some overly-verbose compilers for a 6584193267Sjkim64-bit constant. 6585131440Smarks 6586131440Smarks---------------------------------------- 6587129684Snjl14 May 2004. Summary of changes for version 20040514: 6588129684Snjl 6589129684Snjl1) ACPI CA Core Subsystem: 6590129684Snjl 6591193267SjkimFixed a problem where hardware GPE enable bits sometimes not set properly 6592193267Sjkimduring and after GPE method execution. Result of 04/27 changes. 6593129684Snjl 6594129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 6595129684Snjl 6596193267SjkimRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single 6597193267SjkimAcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to 6598193267Sjkimthe new AcpiEv* calls as appropriate. 6599129684Snjl 6600193267SjkimACPI_OS_NAME was removed from the OS-specific headers. The default name is 6601193267Sjkimnow "Microsoft Windows NT" for maximum compatibility. However this can be 6602193267Sjkimchanged by modifying the acconfig.h file. 6603129684Snjl 6604193267SjkimAllow a single invocation of AcpiInstallNotifyHandler for a handler that 6605193267Sjkimtraps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag. 6606129684Snjl 6607193267SjkimRun _INI methods on ThermalZone objects. This is against the ACPI 6608193267Sjkimspecification, but there is apparently ASL code in the field that has these 6609193267Sjkim_INI methods, and apparently "other" AML interpreters execute them. 6610129684Snjl 6611193267SjkimPerformed a full 16/32/64 bit lint that resulted in some small changes. 6612129684Snjl 6613193267SjkimAdded a sleep simulation command to the AML debugger to test sleep code. 6614129684Snjl 6615193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6616193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6617193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6618193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6619193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6620193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6621193267Sjkimthe compiler options used during generation. 6622129684Snjl 6623129684Snjl Previous Release: 6624129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6625129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 6626129684Snjl Current Release: 6627129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6628129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 6629129684Snjl 6630129684Snjl---------------------------------------- 6631129684Snjl27 April 2004. Summary of changes for version 20040427: 6632129684Snjl 6633129684Snjl1) ACPI CA Core Subsystem: 6634129684Snjl 6635193267SjkimCompleted a major overhaul of the GPE handling within ACPI CA. There are 6636193267Sjkimnow three types of GPEs: wake-only, runtime-only, and combination wake/run. 6637193267SjkimThe only GPEs allowed to be combination wake/run are for button-style 6638193267Sjkimdevices such as a control-method power button, control-method sleep button, 6639193267Sjkimor a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not 6640193267Sjkimreferenced by any _PRW methods are marked for "runtime" and hardware 6641193267Sjkimenabled. Any GPE that is referenced by a _PRW method is marked for "wake" 6642193267Sjkim(and disabled at runtime). However, at sleep time, only those GPEs that 6643193267Sjkimhave been specifically enabled for wake via the AcpiEnableGpe interface will 6644193267Sjkimactually be hardware enabled. 6645129684Snjl 6646193267SjkimA new external interface has been added, AcpiSetGpeType(), that is meant to 6647193267Sjkimbe used by device drivers to force a GPE to a particular type. It will be 6648193267Sjkimespecially useful for the drivers for the button devices mentioned above. 6649129684Snjl 6650193267SjkimCompleted restructuring of the ACPI CA initialization sequence so that 6651193267Sjkimdefault operation region handlers are installed before GPEs are initialized 6652193267Sjkimand the _PRW methods are executed. This will prevent errors when the _PRW 6653193267Sjkimmethods attempt to access system memory or I/O space. 6654129684Snjl 6655193267SjkimGPE enable/disable no longer reads the GPE enable register. We now keep the 6656193267Sjkimenable info for runtime and wake separate and in the GPE_EVENT_INFO. We 6657193267Sjkimthus no longer depend on the hardware to maintain these bits. 6658129684Snjl 6659193267SjkimAlways clear the wake status and fixed/GPE status bits before sleep, even 6660193267Sjkimfor state S5. 6661129684Snjl 6662193267SjkimImproved the AML debugger output for displaying the GPE blocks and their 6663193267Sjkimcurrent status. 6664129684Snjl 6665193267SjkimAdded new strings for the _OSI method, of the form "Windows 2001 SPx" where 6666193267Sjkimx = 0,1,2,3,4. 6667129684Snjl 6668193267SjkimFixed a problem where the physical address was incorrectly calculated when 6669193267Sjkimthe Load() operator was used to directly load from an Operation Region (vs. 6670193267Sjkimloading from a Field object.) Also added check for minimum table length for 6671193267Sjkimthis case. 6672129684Snjl 6673193267SjkimFix for multiple mutex acquisition. Restore original thread SyncLevel on 6674193267Sjkimmutex release. 6675129684Snjl 6676193267SjkimAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 6677129684Snjlconsistency with the other fields returned. 6678129684Snjl 6679193267SjkimShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such 6680193267Sjkimstructure for each GPE in the system, so the size of this structure is 6681193267Sjkimimportant. 6682129684Snjl 6683193267SjkimCPU stack requirement reduction: Cleaned up the method execution and object 6684193267Sjkimevaluation paths so that now a parameter structure is passed, instead of 6685193267Sjkimcopying the various method parameters over and over again. 6686129684Snjl 6687193267SjkimIn evregion.c: Correctly exit and reenter the interpreter region if and 6688193267Sjkimonly if dispatching an operation region request to a user-installed handler. 6689193267SjkimDo not exit/reenter when dispatching to a default handler (e.g., default 6690193267Sjkimsystem memory or I/O handlers) 6691129684Snjl 6692129684Snjl 6693193267SjkimNotes for updating drivers for the new GPE support. The following changes 6694193267Sjkimmust be made to ACPI-related device drivers that are attached to one or more 6695193267SjkimGPEs: (This information will be added to the ACPI CA Programmer Reference.) 6696129684Snjl 6697193267Sjkim1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must 6698193267Sjkimexplicitly call AcpiEnableGpe. 6699193267Sjkim2) There is a new interface called AcpiSetGpeType. This should be called 6700193267Sjkimbefore enabling the GPE. Also, this interface will automatically disable 6701193267Sjkimthe GPE if it is currently enabled. 6702129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 6703129684Snjl 6704129684SnjlSpecific drivers that must be changed: 6705129684Snjl1) EC driver: 6706193267Sjkim AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 6707129684SnjlAeGpeHandler, NULL); 6708129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 6709129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 6710129684Snjl 6711129684Snjl2) Button Drivers (Power, Lid, Sleep): 6712129684SnjlRun _PRW method under parent device 6713129684SnjlIf _PRW exists: /* This is a control-method button */ 6714129684Snjl Extract GPE number and possibly GpeDevice 6715129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 6716129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 6717129684Snjl 6718193267SjkimFor all other devices that have _PRWs, we automatically set the GPE type to 6719193267SjkimACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This 6720193267Sjkimmust be done on a selective basis, usually requiring some kind of user app 6721193267Sjkimto allow the user to pick the wake devices. 6722129684Snjl 6723129684Snjl 6724193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6725193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6726193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6727193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6728193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6729193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6730193267Sjkimthe compiler options used during generation. 6731129684Snjl 6732129684Snjl Previous Release: 6733129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 6734129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 6735129684Snjl Current Release: 6736167802Sjkim 6737129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 6738129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 6739129684Snjl 6740129684Snjl 6741129684Snjl 6742129684Snjl---------------------------------------- 6743128212Snjl02 April 2004. Summary of changes for version 20040402: 6744128212Snjl 6745128212Snjl1) ACPI CA Core Subsystem: 6746128212Snjl 6747193267SjkimFixed an interpreter problem where an indirect store through an ArgX 6748193267Sjkimparameter was incorrectly applying the "implicit conversion rules" during 6749193267Sjkimthe store. From the ACPI specification: "If the target is a method local or 6750193267Sjkimargument (LocalX or ArgX), no conversion is performed and the result is 6751193267Sjkimstored directly to the target". The new behavior is to disable implicit 6752193267Sjkimconversion during ALL stores to an ArgX. 6753128212Snjl 6754193267SjkimChanged the behavior of the _PRW method scan to ignore any and all errors 6755193267Sjkimreturned by a given _PRW. This prevents the scan from aborting from the 6756193267Sjkimfailure of any single _PRW. 6757128212Snjl 6758193267SjkimMoved the runtime configuration parameters from the global init procedure to 6759193267Sjkimstatic variables in acglobal.h. This will allow the host to override the 6760193267Sjkimdefault values easily. 6761128212Snjl 6762193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6763193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6764193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6765193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6766193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6767193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6768193267Sjkimthe compiler options used during generation. 6769128212Snjl 6770128212Snjl Previous Release: 6771128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 6772128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 6773128212Snjl Current Release: 6774128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 6775128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 6776128212Snjl 6777128212Snjl 6778128212Snjl2) iASL Compiler/Disassembler: 6779128212Snjl 6780193267SjkimiASL now fully disassembles SSDTs. However, External() statements are not 6781193267Sjkimgenerated automatically for unresolved symbols at this time. This is a 6782193267Sjkimplanned feature for future implementation. 6783128212Snjl 6784193267SjkimFixed a scoping problem in the disassembler that occurs when the type of the 6785193267Sjkimtarget of a Scope() operator is overridden. This problem caused an 6786193267Sjkimincorrectly nested internal namespace to be constructed. 6787128212Snjl 6788193267SjkimAny warnings or errors that are emitted during disassembly are now commented 6789193267Sjkimout automatically so that the resulting file can be recompiled without any 6790193267Sjkimhand editing. 6791128212Snjl 6792128212Snjl---------------------------------------- 6793128212Snjl26 March 2004. Summary of changes for version 20040326: 6794128212Snjl 6795128212Snjl1) ACPI CA Core Subsystem: 6796128212Snjl 6797193267SjkimImplemented support for "wake" GPEs via interaction between GPEs and the 6798193267Sjkim_PRW methods. Every GPE that is pointed to by one or more _PRWs is 6799193267Sjkimidentified as a WAKE GPE and by default will no longer be enabled at 6800193267Sjkimruntime. Previously, we were blindly enabling all GPEs with a corresponding 6801193267Sjkim_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We 6802193267Sjkimbelieve this has been the cause of thousands of "spurious" GPEs on some 6803128212Snjlsystems. 6804128212Snjl 6805193267SjkimThis new GPE behavior is can be reverted to the original behavior (enable 6806193267SjkimALL GPEs at runtime) via a runtime flag. 6807128212Snjl 6808193267SjkimFixed a problem where aliased control methods could not access objects 6809193267Sjkimproperly. The proper scope within the namespace was not initialized 6810193267Sjkim(transferred to the target of the aliased method) before executing the 6811193267Sjkimtarget method. 6812128212Snjl 6813193267SjkimFixed a potential race condition on internal object deletion on the return 6814193267Sjkimobject in AcpiEvaluateObject. 6815128212Snjl 6816193267SjkimIntegrated a fix for resource descriptors where both _MEM and _MTP were 6817193267Sjkimbeing extracted instead of just _MEM. (i.e. bitmask was incorrectly too 6818193267Sjkimwide, 0x0F instead of 0x03.) 6819128212Snjl 6820193267SjkimAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a 6821193267Sjkimfault in some cases. 6822128212Snjl 6823128212SnjlUpdated Notify() values for debug statements in evmisc.c 6824128212Snjl 6825193267SjkimReturn proper status from AcpiUtMutexInitialize, not just simply AE_OK. 6826128212Snjl 6827193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6828193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6829193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6830193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6831193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6832193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6833193267Sjkimthe compiler options used during generation. 6834128212Snjl 6835128212Snjl Previous Release: 6836167802Sjkim 6837128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 6838128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 6839128212Snjl Current Release: 6840128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 6841128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 6842128212Snjl 6843128212Snjl---------------------------------------- 6844127175Snjl11 March 2004. Summary of changes for version 20040311: 6845127175Snjl 6846127175Snjl1) ACPI CA Core Subsystem: 6847127175Snjl 6848193267SjkimFixed a problem where errors occurring during the parse phase of control 6849193267Sjkimmethod execution did not abort cleanly. For example, objects created and 6850193267Sjkiminstalled in the namespace were not deleted. This caused all subsequent 6851193267Sjkiminvocations of the method to return the AE_ALREADY_EXISTS exception. 6852127175Snjl 6853193267SjkimImplemented a mechanism to force a control method to "Serialized" execution 6854193267Sjkimif the method attempts to create namespace objects. (The root of the 6855193267SjkimAE_ALREADY_EXISTS problem.) 6856127175Snjl 6857193267SjkimImplemented support for the predefined _OSI "internal" control method. 6858193267SjkimInitial supported strings are "Linux", "Windows 2000", "Windows 2001", and 6859193267Sjkim"Windows 2001.1", and can be easily upgraded for new strings as necessary. 6860193267SjkimThis feature will allow "other" operating systems to execute the fully 6861193267Sjkimtested, "Windows" code path through the ASL code 6862127175Snjl 6863193267SjkimGlobal Lock Support: Now allows multiple acquires and releases with any 6864193267Sjkiminternal thread. Removed concept of "owning thread" for this special mutex. 6865127175Snjl 6866193267SjkimFixed two functions that were inappropriately declaring large objects on the 6867193267SjkimCPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during 6868193267Sjkimmethod execution considerably. 6869127175Snjl 6870193267SjkimFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the 6871193267SjkimS4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT. 6872127175Snjl 6873193267SjkimFixed a problem where AcpiEvGpeDetect would fault if there were no GPEs 6874193267Sjkimdefined on the machine. 6875127175Snjl 6876193267SjkimImplemented two runtime options: One to force all control method execution 6877193267Sjkimto "Serialized" to mimic Windows behavior, another to disable _OSI support 6878193267Sjkimif it causes problems on a given machine. 6879127175Snjl 6880193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6881193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6882193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6883193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6884193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6885193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6886193267Sjkimthe compiler options used during generation. 6887127175Snjl 6888127175Snjl Previous Release: 6889127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6890127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6891127175Snjl Current Release: 6892127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 6893127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 6894127175Snjl 6895127175Snjl2) iASL Compiler/Disassembler: 6896127175Snjl 6897193267SjkimFixed an array size problem for FreeBSD that would cause the compiler to 6898193267Sjkimfault. 6899127175Snjl 6900127175Snjl---------------------------------------- 6901126372Snjl20 February 2004. Summary of changes for version 20040220: 6902126372Snjl 6903167802Sjkim 6904126372Snjl1) ACPI CA Core Subsystem: 6905126372Snjl 6906193267SjkimImplemented execution of _SxD methods for Device objects in the 6907126372SnjlGetObjectInfo interface. 6908126372Snjl 6909126372SnjlFixed calls to _SST method to pass the correct arguments. 6910126372Snjl 6911126372SnjlAdded a call to _SST on wake to restore to "working" state. 6912126372Snjl 6913193267SjkimCheck for End-Of-Buffer failure case in the WalkResources interface. 6914126372Snjl 6915193267SjkimIntegrated fix for 64-bit alignment issue in acglobal.h by moving two 6916193267Sjkimstructures to the beginning of the file. 6917126372Snjl 6918126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 6919126372Snjl 6920193267SjkimAfter wake, clear/enable power button. (Perhaps we should clear/enable all 6921193267Sjkimfixed events upon wake.) 6922126372Snjl 6923126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 6924126372Snjl 6925126372SnjlIntegrated latest acnetbsd.h file. 6926126372Snjl 6927126372Snjl---------------------------------------- 6928126372Snjl11 February 2004. Summary of changes for version 20040211: 6929126372Snjl 6930167802Sjkim 6931126372Snjl1) ACPI CA Core Subsystem: 6932126372Snjl 6933193267SjkimCompleted investigation and implementation of the call-by-reference 6934193267Sjkimmechanism for control method arguments. 6935126372Snjl 6936193267SjkimFixed a problem where a store of an object into an indexed package could 6937193267Sjkimfail if the store occurs within a different method than the method that 6938193267Sjkimcreated the package. 6939126372Snjl 6940193267SjkimFixed a problem where the ToDecimal operator could return incorrect results. 6941126372Snjl 6942193267SjkimFixed a problem where the CopyObject operator could fail on some of the more 6943193267Sjkimobscure objects (e.g., Reference objects.) 6944126372Snjl 6945193267SjkimImproved the output of the Debug object to display buffer, package, and 6946193267Sjkimindex objects. 6947126372Snjl 6948193267SjkimFixed a problem where constructs of the form "RefOf (ArgX)" did not return 6949193267Sjkimthe expected result. 6950126372Snjl 6951193267SjkimAdded permanent ACPI_REPORT_ERROR macros for all instances of the 6952126372SnjlACPI_AML_INTERNAL exception. 6953126372Snjl 6954126372SnjlIntegrated latest version of acfreebsd.h 6955126372Snjl 6956126372Snjl---------------------------------------- 6957126372Snjl16 January 2004. Summary of changes for version 20040116: 6958126372Snjl 6959193267SjkimThe purpose of this release is primarily to update the copyright years in 6960193267Sjkimeach module, thus causing a huge number of diffs. There are a few small 6961193267Sjkimfunctional changes, however. 6962126372Snjl 6963126372Snjl1) ACPI CA Core Subsystem: 6964126372Snjl 6965193267SjkimImproved error messages when there is a problem finding one or more of the 6966193267Sjkimrequired base ACPI tables 6967126372Snjl 6968126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 6969126372Snjl 6970126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 6971126372Snjl 6972126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 6973126372Snjl 6974126372Snjl2) iASL compiler 6975126372Snjl 6976193267SjkimFixed a problem introduced in December that disabled the correct disassembly 6977193267Sjkimof Resource Templates 6978126372Snjl 6979126372Snjl 6980126372Snjl---------------------------------------- 6981126372Snjl03 December 2003. Summary of changes for version 20031203: 6982126372Snjl 6983126372Snjl1) ACPI CA Core Subsystem: 6984126372Snjl 6985126372SnjlChanged the initialization of Operation Regions during subsystem 6986126372Snjlinit to perform two entire walks of the ACPI namespace; The first 6987126372Snjlto initialize the regions themselves, the second to execute the 6988126372Snjl_REG methods. This fixed some interdependencies across _REG 6989126372Snjlmethods found on some machines. 6990126372Snjl 6991126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 6992126372Snjlthe object reference count, and not create a new copy of the 6993126372Snjlobject if the Local1 is uninitialized. 6994126372Snjl 6995126372SnjlImplemented support for the _SST reserved method during sleep 6996126372Snjltransitions. 6997126372Snjl 6998126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 6999126372Snjlwaking up, this is apparently required by some machines. 7000126372Snjl 7001193267SjkimWhen sleeping, clear the wake status only if SleepState is not S5. 7002126372Snjl 7003126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 7004126372Snjlpointer arithmetic advanced a string pointer too far. 7005126372Snjl 7006126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 7007126372Snjlcould be returned if the requested table has not been loaded. 7008126372Snjl 7009193267SjkimWithin the support for IRQ resources, restructured the handling of 7010126372Snjlthe active and edge/level bits. 7011126372Snjl 7012126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 7013126372Snjlleaked under certain error conditions. 7014126372Snjl 7015126372SnjlImproved error messages for the cases where the ACPI mode could 7016126372Snjlnot be entered. 7017126372Snjl 7018126372SnjlCode and Data Size: Current and previous core subsystem library 7019126372Snjlsizes are shown below. These are the code and data sizes for the 7020126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 7021126372Snjlthese values do not include any ACPI driver or OSPM code. The 7022126372Snjldebug version of the code includes the debug output trace 7023126372Snjlmechanism and has a much larger code and data size. Note that 7024193267Sjkimthese values will vary depending on the efficiency of the compiler 7025126372Snjland the compiler options used during generation. 7026126372Snjl 7027126372Snjl Previous Release (20031029): 7028126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 7029126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 7030126372Snjl Current Release: 7031126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 7032126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 7033126372Snjl 7034126372Snjl2) iASL Compiler/Disassembler: 7035126372Snjl 7036126372SnjlImplemented a fix for the iASL disassembler where a bad index was 7037126372Snjlgenerated. This was most noticeable on 64-bit platforms 7038126372Snjl 7039126372Snjl 7040126372Snjl---------------------------------------- 7041126372Snjl29 October 2003. Summary of changes for version 20031029: 7042126372Snjl 7043126372Snjl1) ACPI CA Core Subsystem: 7044126372Snjl 7045167802Sjkim 7046126372SnjlFixed a problem where a level-triggered GPE with an associated 7047126372Snjl_Lxx control method was incorrectly cleared twice. 7048126372Snjl 7049126372SnjlFixed a problem with the Field support code where an access can 7050126372Snjloccur beyond the end-of-region if the field is non-aligned but 7051126372Snjlextends to the very end of the parent region (resulted in an 7052126372SnjlAE_AML_REGION_LIMIT exception.) 7053126372Snjl 7054126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 7055193267Sjkimwould not get invoked on an RTC event. The RTC event bitmasks for 7056126372Snjlthe PM1 registers were not being initialized properly. 7057126372Snjl 7058126372SnjlImplemented support for executing _STA and _INI methods for 7059126372SnjlProcessor objects. Although this is currently not part of the 7060193267SjkimACPI specification, there is existing ASL code that depends on the 7061126372Snjlinit-time execution of these methods. 7062126372Snjl 7063126372SnjlImplemented and deployed a GetDescriptorName function to decode 7064126372Snjlthe various types of internal descriptors. Guards against null 7065126372Snjldescriptors during debug output also. 7066126372Snjl 7067126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 7068193267Sjkimcharacter namespace node name. This function simplifies the debug 7069193267Sjkimand error output, as well as guarding against null pointers during 7070126372Snjloutput. 7071126372Snjl 7072126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 7073126372Snjlsimplify the debug and error output of 64-bit integers. This 7074126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 7075126372Snjlintegers. 7076126372Snjl 7077126372SnjlUpdated the implementation of the Stall() operator to only call 7078126372SnjlAcpiOsStall(), and also return an error if the operand is larger 7079126372Snjlthan 255. This preserves the required behavior of not 7080126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 7081126372Snjlcalled for "long stalls". 7082126372Snjl 7083126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 7084126372Snjlinitialized are now treated as NOOPs. 7085126372Snjl 7086126372SnjlCleaned up a handful of warnings during 64-bit generation. 7087126372Snjl 7088126372SnjlFixed a reported error where and incorrect GPE number was passed 7089126372Snjlto the GPE dispatch handler. This value is only used for error 7090193267Sjkimoutput, however. Used this opportunity to clean up and streamline 7091126372Snjlthe GPE dispatch code. 7092126372Snjl 7093126372SnjlCode and Data Size: Current and previous core subsystem library 7094126372Snjlsizes are shown below. These are the code and data sizes for the 7095126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 7096126372Snjlthese values do not include any ACPI driver or OSPM code. The 7097167802Sjkim 7098126372Snjldebug version of the code includes the debug output trace 7099126372Snjlmechanism and has a much larger code and data size. Note that 7100193267Sjkimthese values will vary depending on the efficiency of the compiler 7101126372Snjland the compiler options used during generation. 7102126372Snjl 7103126372Snjl Previous Release (20031002): 7104126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 7105126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 7106126372Snjl Current Release: 7107126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 7108126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 7109126372Snjl 7110126372Snjl 7111126372Snjl2) iASL Compiler/Disassembler: 7112126372Snjl 7113193267SjkimUpdated the iASL compiler to return an error if the operand to the 7114126372SnjlStall() operator is larger than 255. 7115126372Snjl 7116126372Snjl 7117126372Snjl---------------------------------------- 7118126372Snjl02 October 2003. Summary of changes for version 20031002: 7119126372Snjl 7120126372Snjl 7121126372Snjl1) ACPI CA Core Subsystem: 7122126372Snjl 7123126372SnjlFixed a problem with Index Fields where the index was not 7124126372Snjlincremented for fields that require multiple writes to the 7125126372Snjlindex/data registers (Fields that are wider than the data 7126126372Snjlregister.) 7127126372Snjl 7128126372SnjlFixed a problem with all Field objects where a write could go 7129126372Snjlbeyond the end-of-field if the field was larger than the access 7130193267Sjkimgranularity and therefore required multiple writes to complete the 7131126372Snjlrequest. An extra write beyond the end of the field could happen 7132126372Snjlinadvertently. 7133126372Snjl 7134126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 7135126372Snjlwould incorrectly be returned if the width of the Data Register 7136126372Snjlwas larger than the specified field access width. 7137126372Snjl 7138126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 7139126372Snjloperation. Implemented full support for the "DdbHandle" object 7140126372Snjlthroughout the ACPI CA subsystem. 7141126372Snjl 7142126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 7143126372SnjlCA header files. Even though these tables are not directly 7144126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 7145126372Snjldevice drivers. 7146126372Snjl 7147126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 7148126372Snjllist. This included checks for minimum descriptor length, and 7149126372Snjlsupport for trailing NULL strings within descriptors that have 7150126372Snjloptional string elements. 7151126372Snjl 7152126372SnjlCode and Data Size: Current and previous core subsystem library 7153126372Snjlsizes are shown below. These are the code and data sizes for the 7154126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 7155126372Snjlthese values do not include any ACPI driver or OSPM code. The 7156126372Snjldebug version of the code includes the debug output trace 7157126372Snjlmechanism and has a much larger code and data size. Note that 7158193267Sjkimthese values will vary depending on the efficiency of the compiler 7159126372Snjland the compiler options used during generation. 7160126372Snjl 7161126372Snjl Previous Release (20030918): 7162126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 7163126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 7164126372Snjl Current Release: 7165126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 7166126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 7167126372Snjl 7168126372Snjl 7169126372Snjl2) iASL Compiler: 7170126372Snjl 7171126372SnjlImplemented detection of non-ASCII characters within the input 7172126372Snjlsource ASL file. This catches attempts to compile binary (AML) 7173126372Snjlfiles early in the compile, with an informative error message. 7174126372Snjl 7175126372SnjlFixed a problem where the disassembler would fault if the output 7176193267Sjkimfilename could not be generated or if the output file could not be 7177126372Snjlopened. 7178126372Snjl 7179126372Snjl---------------------------------------- 7180126372Snjl18 September 2003. Summary of changes for version 20030918: 7181126372Snjl 7182126372Snjl 7183126372Snjl1) ACPI CA Core Subsystem: 7184126372Snjl 7185126372SnjlFound and fixed a longstanding problem with the late execution of 7186126372Snjlthe various deferred AML opcodes (such as Operation Regions, 7187126372SnjlBuffer Fields, Buffers, and Packages). If the name string 7188126372Snjlspecified for the name of the new object placed the object in a 7189126372Snjlscope other than the current scope, the initialization/execution 7190126372Snjlof the opcode failed. The solution to this problem was to 7191126372Snjlimplement a mechanism where the late execution of such opcodes 7192126372Snjldoes not attempt to lookup/create the name a second time in an 7193126372Snjlincorrect scope. This fixes the "region size computed 7194126372Snjlincorrectly" problem. 7195126372Snjl 7196193267SjkimFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a 7197126372SnjlGlobal Lock AE_BAD_PARAMETER error. 7198126372Snjl 7199126372SnjlFixed several 64-bit issues with prototypes, casting and data 7200126372Snjltypes. 7201126372Snjl 7202126372SnjlRemoved duplicate prototype from acdisasm.h 7203126372Snjl 7204126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 7205126372Snjl 7206126372SnjlCode and Data Size: Current and previous core subsystem library 7207126372Snjlsizes are shown below. These are the code and data sizes for the 7208126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 7209126372Snjlthese values do not include any ACPI driver or OSPM code. The 7210126372Snjldebug version of the code includes the debug output trace 7211126372Snjlmechanism and has a much larger code and data size. Note that 7212193267Sjkimthese values will vary depending on the efficiency of the compiler 7213126372Snjland the compiler options used during generation. 7214126372Snjl 7215126372Snjl Previous Release: 7216167802Sjkim 7217126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 7218126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 7219126372Snjl Current Release: 7220126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 7221126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 7222126372Snjl 7223126372Snjl 7224126372Snjl2) Linux: 7225126372Snjl 7226126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 7227126372Snjlcorrect sleep time in seconds. 7228126372Snjl 7229126372Snjl---------------------------------------- 7230126372Snjl14 July 2003. Summary of changes for version 20030619: 7231126372Snjl 7232126372Snjl1) ACPI CA Core Subsystem: 7233126372Snjl 7234126372SnjlParse SSDTs in order discovered, as opposed to reverse order 7235126372Snjl(Hrvoje Habjanic) 7236126372Snjl 7237126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 7238126372SnjlKlausner, 7239126372Snjl Nate Lawson) 7240126372Snjl 7241126372Snjl 7242126372Snjl2) Linux: 7243126372Snjl 7244126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 7245126372Snjl 7246126372Snjlproc function return value cleanups (Andi Kleen) 7247126372Snjl 7248126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 7249126372Snjl 7250126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 7251126372Snjl 7252126372Snjl 7253126372Snjl---------------------------------------- 7254117521Snjl19 June 2003. Summary of changes for version 20030619: 7255117521Snjl 7256117521Snjl1) ACPI CA Core Subsystem: 7257117521Snjl 7258193267SjkimFix To/FromBCD, eliminating the need for an arch-specific #define. 7259117521Snjl 7260117521SnjlDo not acquire a semaphore in the S5 shutdown path. 7261117521Snjl 7262117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 7263117521Snjl 7264117521SnjlFix sleep/stall code reversal. (Andi Kleen) 7265117521Snjl 7266117521SnjlRevert a change having to do with control method calling 7267117521Snjlsemantics. 7268117521Snjl 7269117521Snjl2) Linux: 7270117521Snjl 7271117521Snjlacpiphp update (Takayoshi Kochi) 7272117521Snjl 7273117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 7274117521Snjl 7275117521SnjlMention acpismp=force in config help 7276117521Snjl 7277117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 7278167802Sjkim 7279193267Sjkimcompatibility and also cleans up the code to a significant degree. 7280117521Snjl 7281117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 7282117521Snjl 7283117521Snjl---------------------------------------- 7284117521Snjl22 May 2003. Summary of changes for version 20030522: 7285117521Snjl 7286117521Snjl1) ACPI CA Core Subsystem: 7287117521Snjl 7288117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 7289117521Snjloccurred occasionally during _BST evaluation. This turned out to 7290117521Snjlbe an Owner ID allocation issue where a called method did not get 7291193267Sjkima new ID assigned to it. Eventually, (after 64k calls), the Owner 7292193267SjkimID UINT16 would wraparound so that the ID would be the same as the 7293126372Snjlcaller's and the called method would delete the caller's 7294117521Snjlnamespace. 7295117521Snjl 7296117521SnjlImplemented extended error reporting for control methods that are 7297117521Snjlaborted due to a run-time exception. Output includes the exact 7298193267SjkimAML instruction that caused the method abort, a dump of the method 7299126372Snjllocals and arguments at the time of the abort, and a trace of all 7300126372Snjlnested control method calls. 7301117521Snjl 7302117521SnjlModified the interpreter to allow the creation of buffers of zero 7303117521Snjllength from the AML code. Implemented new code to ensure that no 7304117521Snjlattempt is made to actually allocate a memory buffer (of length 7305193267Sjkimzero) - instead, a simple buffer object with a NULL buffer pointer 7306126372Snjland length zero is created. A warning is no longer issued when 7307126372Snjlthe AML attempts to create a zero-length buffer. 7308117521Snjl 7309117521SnjlImplemented a workaround for the "leading asterisk issue" in 7310117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 7311117521Snjlasterisk is automatically removed if present in any HID, UID, or 7312117521SnjlCID strings. The iASL compiler will still flag this asterisk as 7313117521Snjlan error, however. 7314117521Snjl 7315193267SjkimImplemented full support for _CID methods that return a package of 7316193267Sjkimmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface 7317126372Snjlnow additionally returns a device _CID list if present. This 7318126372Snjlrequired a change to the external interface in order to pass an 7319126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 7320117521Snjlvariable length. 7321117521Snjl 7322117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 7323117521Snjlhandler initialization code did not know about this exception. 7324117521Snjl 7325117521SnjlCode and Data Size: Current and previous core subsystem library 7326117521Snjlsizes are shown below. These are the code and data sizes for the 7327117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 7328117521Snjlthese values do not include any ACPI driver or OSPM code. The 7329117521Snjldebug version of the code includes the debug output trace 7330117521Snjlmechanism and has a much larger code and data size. Note that 7331193267Sjkimthese values will vary depending on the efficiency of the compiler 7332126372Snjland the compiler options used during generation. 7333117521Snjl 7334117521Snjl Previous Release (20030509): 7335117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 7336117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 7337117521Snjl Current Release: 7338117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 7339117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 7340117521Snjl 7341117521Snjl 7342117521Snjl2) Linux: 7343117521Snjl 7344117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 7345193267Sjkimafter it was already working, thus disabling all ACPI and the IRQs 7346126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 7347117521SnjlJordet) 7348117521Snjl 7349117521SnjlToshiba driver update (John Belmonte) 7350117521Snjl 7351117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 7352117521SnjlMorton) 7353117521Snjl 7354117521Snjl 7355117521Snjl3) iASL Compiler: 7356117521Snjl 7357117521SnjlFixed a reported problem where multiple (nested) ElseIf() 7358117521Snjlstatements were not handled correctly by the compiler, resulting 7359117521Snjlin incorrect warnings and incorrect AML code. This was a problem 7360117521Snjlin both the ASL parser and the code generator. 7361117521Snjl 7362117521Snjl 7363117521Snjl4) Documentation: 7364117521Snjl 7365193267SjkimAdded changes to existing interfaces, new exception codes, and new 7366126372Snjltext concerning reference count object management versus garbage 7367126372Snjlcollection. 7368117521Snjl 7369117521Snjl---------------------------------------- 7370117521Snjl09 May 2003. Summary of changes for version 20030509. 7371117521Snjl 7372117521Snjl 7373117521Snjl1) ACPI CA Core Subsystem: 7374117521Snjl 7375117521SnjlChanged the subsystem initialization sequence to hold off 7376193267Sjkiminstallation of address space handlers until the hardware has been 7377193267Sjkiminitialized and the system has entered ACPI mode. This is because 7378126372Snjlthe installation of space handlers can cause _REG methods to be 7379193267Sjkimrun. Previously, the _REG methods could potentially be run before 7380126372SnjlACPI mode was enabled. 7381117521Snjl 7382193267SjkimFixed some memory leak issues related to address space handler and 7383126372Snjlnotify handler installation. There were some problems with the 7384126372Snjlreference count mechanism caused by the fact that the handler 7385117521Snjlobjects are shared across several namespace objects. 7386117521Snjl 7387117521SnjlFixed a reported problem where reference counts within the 7388117521Snjlnamespace were not properly updated when named objects created by 7389117521Snjlmethod execution were deleted. 7390117521Snjl 7391117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 7392117521Snjlissue during subsystem termination. Restructured the table data 7393117521Snjlstructures to simplify the linked lists and the related code. 7394117521Snjl 7395117521SnjlFixed a problem where the table ID associated with secondary 7396193267Sjkimtables (SSDTs) was not being propagated into the namespace objects 7397126372Snjlcreated by those tables. This would only present a problem for 7398126372Snjltables that are unloaded at run-time, however. 7399117521Snjl 7400117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 7401117521Snjltype as the length parameter (instead of UINT32). 7402117521Snjl 7403117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 7404117521Snjlappears on various systems. This problem could happen when there 7405117521Snjlare multiple PCI_Config operation regions under a single PCI root 7406117521Snjlbus. This doesn't happen very frequently, but there are some 7407117521Snjlsystems that do this in the ASL. 7408117521Snjl 7409117521SnjlFixed a reported problem where the internal DeleteNode function 7410117521Snjlwas incorrectly handling the case where a namespace node was the 7411117521Snjlfirst in the parent's child list, and had additional peers (not 7412117521Snjlthe only child, but first in the list of children.) 7413117521Snjl 7414193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7415126372Snjlbelow. These are the code and data sizes for the acpica.lib 7416126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7417126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7418126372Snjlversion of the code includes the debug output trace mechanism and 7419193267Sjkimhas a much larger code and data size. Note that these values will 7420126372Snjlvary depending on the efficiency of the compiler and the compiler 7421126372Snjloptions used during generation. 7422117521Snjl 7423117521Snjl Previous Release 7424117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 7425117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 7426117521Snjl Current Release: 7427117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 7428117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 7429117521Snjl 7430117521Snjl 7431117521Snjl2) Linux: 7432117521Snjl 7433117521SnjlAllow ":" in OS override string (Ducrot Bruno) 7434117521Snjl 7435117521SnjlKobject fix (Greg KH) 7436117521Snjl 7437117521Snjl 7438117521Snjl3 iASL Compiler/Disassembler: 7439117521Snjl 7440117521SnjlFixed a problem in the generation of the C source code files (AML 7441117521Snjlis emitted in C source statements for BIOS inclusion) where the 7442193267SjkimAscii dump that appears within a C comment at the end of each line 7443126372Snjlcould cause a compile time error if the AML sequence happens to 7444126372Snjlhave an open comment or close comment sequence embedded. 7445117521Snjl 7446117521Snjl 7447117521Snjl---------------------------------------- 7448117521Snjl24 April 2003. Summary of changes for version 20030424. 7449117521Snjl 7450117521Snjl 7451117521Snjl1) ACPI CA Core Subsystem: 7452117521Snjl 7453117521SnjlSupport for big-endian systems has been implemented. Most of the 7454193267Sjkimsupport has been invisibly added behind big-endian versions of the 7455126372SnjlACPI_MOVE_* macros. 7456117521Snjl 7457117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 7458117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 7459117521Snjllow level hardware write routine. The offset parameter was 7460193267Sjkimactually eliminated from the low level read/write routines because 7461126372Snjlthey had become obsolete. 7462117521Snjl 7463117521SnjlFixed a problem where a handler object was deleted twice during 7464117521Snjlthe removal of a fixed event handler. 7465117521Snjl 7466117521Snjl 7467117521Snjl2) Linux: 7468117521Snjl 7469117521SnjlA fix for SMP systems with link devices was contributed by 7470167802Sjkim 7471117521SnjlCompaq's Dan Zink. 7472117521Snjl 7473117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 7474193267Sjkim(Linux ISRs no longer return void, so we can propagate the handler 7475126372Snjlreturn value from the ACPI CA core back to the OS.) 7476117521Snjl 7477117521Snjl 7478167802Sjkim 7479117521Snjl3) Documentation: 7480117521Snjl 7481117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 7482117521Snjlinterfaces and changes to existing interfaces. 7483117521Snjl 7484117521Snjl---------------------------------------- 7485117521Snjl28 March 2003. Summary of changes for version 20030328. 7486117521Snjl 7487117521Snjl1) ACPI CA Core Subsystem: 7488117521Snjl 7489117521SnjlThe GPE Block Device support has been completed. New interfaces 7490117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 7491117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 7492117521Snjlinto separate interfaces for Fixed Events and General Purpose 7493117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 7494117521Snjl 7495117521SnjlFixed a problem where the error message "Failed to acquire 7496117521Snjlsemaphore" would appear during operations on the embedded 7497117521Snjlcontroller (EC). 7498117521Snjl 7499193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7500126372Snjlbelow. These are the code and data sizes for the acpica.lib 7501126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7502126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7503126372Snjlversion of the code includes the debug output trace mechanism and 7504193267Sjkimhas a much larger code and data size. Note that these values will 7505126372Snjlvary depending on the efficiency of the compiler and the compiler 7506126372Snjloptions used during generation. 7507117521Snjl 7508117521Snjl Previous Release 7509117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 7510117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 7511117521Snjl Current Release: 7512117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 7513117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 7514117521Snjl 7515117521Snjl 7516117521Snjl---------------------------------------- 7517114237Snjl28 February 2003. Summary of changes for version 20030228. 7518114237Snjl 7519114237Snjl 7520114237Snjl1) ACPI CA Core Subsystem: 7521114237Snjl 7522114237SnjlThe GPE handling and dispatch code has been completely overhauled 7523114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 7524114237SnjlThis affects internal data structures and code only; there should 7525114237Snjlbe no differences visible externally. One new file has been 7526114237Snjladded, evgpeblk.c 7527114237Snjl 7528114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 7529114237Snjlfields that are used to determine the GPE block lengths. The 7530114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 7531193267Sjkimstructures are ignored. This is per the ACPI specification but it 7532126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 7533193267Sjkim(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128). 7534114237Snjl 7535114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 7536114237Snjlregister to look at the SCI_EN bit. On some machines, this read 7537114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 7538114237Snjlin fact be the cause of slow battery status response on some 7539114237Snjlsystems.) 7540114237Snjl 7541193267SjkimFixed a problem where a store of a NULL string to a package object 7542126372Snjlcould cause the premature deletion of the object. This was seen 7543126372Snjlduring execution of the battery _BIF method on some systems, 7544126372Snjlresulting in no battery data being returned. 7545114237Snjl 7546114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 7547114237Snjllists. 7548114237Snjl 7549193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7550126372Snjlbelow. These are the code and data sizes for the acpica.lib 7551126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7552126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7553126372Snjlversion of the code includes the debug output trace mechanism and 7554193267Sjkimhas a much larger code and data size. Note that these values will 7555126372Snjlvary depending on the efficiency of the compiler and the compiler 7556126372Snjloptions used during generation. 7557114237Snjl 7558114237Snjl Previous Release 7559114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7560114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7561114237Snjl Current Release: 7562114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 7563114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 7564114237Snjl 7565114237Snjl 7566114237Snjl2) Linux 7567114237Snjl 7568114237SnjlS3 fixes (Ole Rohne) 7569114237Snjl 7570114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 7571114237Snjl(Bjorn Helgaas) 7572114237Snjl 7573114237SnjlAdd S4BIOS support (Pavel Machek) 7574114237Snjl 7575114237SnjlMap in entire table before performing checksum (John Stultz) 7576114237Snjl 7577193267SjkimExpand the mem= cmdline to allow the specification of reserved and 7578126372SnjlACPI DATA blocks (Pavel Machek) 7579114237Snjl 7580114237SnjlNever use ACPI on VISWS 7581114237Snjl 7582114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 7583114237Snjl 7584114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 7585114237Snjlcausing us to think that some systems support C2 when they really 7586114237Snjldon't. 7587114237Snjl 7588114237SnjlDo not count processor objects for non-present CPUs (Thanks to 7589114237SnjlDominik Brodowski) 7590114237Snjl 7591114237Snjl 7592114237Snjl3) iASL Compiler: 7593114237Snjl 7594114237SnjlFixed a problem where ASL include files could not be found and 7595114237Snjlopened. 7596114237Snjl 7597114237SnjlAdded support for the _PDC reserved name. 7598114237Snjl 7599114237Snjl 7600117521Snjl---------------------------------------- 7601114237Snjl22 January 2003. Summary of changes for version 20030122. 7602114237Snjl 7603114237Snjl 7604114237Snjl1) ACPI CA Core Subsystem: 7605114237Snjl 7606114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 7607114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 7608193267Sjkimprogrammers believe that this is a NOOP. Since this store doesn't 7609126372Snjldo anything anyway, the new prototype behavior will ignore this 7610126372Snjlerror. This is a case where we can relax the strict checking in 7611126372Snjlthe interpreter in the name of compatibility. 7612114237Snjl 7613114237Snjl 7614114237Snjl2) Linux 7615114237Snjl 7616114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 7617114237SnjlLinux package for the first time. This is the utility that is 7618193267Sjkimused to convert the ACPI CA base source code to the Linux version. 7619114237Snjl 7620114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 7621114237Snjl 7622114237Snjl(Both) Move more headers to include/acpi, and delete an unused 7623114237Snjlheader. 7624114237Snjl 7625114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 7626114237Snjl 7627114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 7628114237Snjl 7629114237Snjl(Both) Remove include of unused header (Adrian Bunk) 7630114237Snjl 7631114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 7632114237Snjlthe 7633193267Sjkimformer now also includes the latter, acpiphp.h only needs the one, 7634126372Snjlnow. 7635114237Snjl 7636193267Sjkim(2.5) Make it possible to select method of bios restoring after S3 7637114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 7638114237Snjl 7639114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 7640114237Snjl 7641114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 7642114237Snjl 7643114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 7644114237Snjl(Dominik Brodowski) 7645114237Snjl 7646114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 7647114237Snjl 7648114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 7649114237SnjlVisinoni) 7650114237Snjl 7651114237Snjl 7652114237Snjl3) iASL Compiler: 7653114237Snjl 7654114237SnjlAdded support to disassemble SSDT and PSDTs. 7655114237Snjl 7656114237SnjlImplemented support to obtain SSDTs from the Windows registry if 7657114237Snjlavailable. 7658114237Snjl 7659114237Snjl 7660102550Siwasaki---------------------------------------- 7661114237Snjl09 January 2003. Summary of changes for version 20030109. 7662114237Snjl 7663114237Snjl1) ACPI CA Core Subsystem: 7664114237Snjl 7665114237SnjlChanged the behavior of the internal Buffer-to-String conversion 7666193267Sjkimfunction. The current ACPI specification states that the contents 7667126372Snjlof the buffer are "converted to a string of two-character 7668126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 7669193267Sjkimthis definition is not backwards compatible with existing ACPI 1.0 7670193267Sjkimimplementations (although the behavior was not defined in the ACPI 7671126372Snjl1.0 specification). The new behavior simply copies data from the 7672193267Sjkimbuffer to the string until a null character is found or the end of 7673126372Snjlthe buffer is reached. The new String object is always null 7674126372Snjlterminated. This problem was seen during the generation of _BIF 7675126372Snjlbattery data where incorrect strings were returned for battery 7676126372Snjltype, etc. This will also require an errata to the ACPI 7677126372Snjlspecification. 7678114237Snjl 7679114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 7680114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 7681114237Snjl 7682114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 7683114237Snjlupdated to 2003. 7684114237Snjl 7685193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7686126372Snjlbelow. These are the code and data sizes for the acpica.lib 7687126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7688126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7689126372Snjlversion of the code includes the debug output trace mechanism and 7690193267Sjkimhas a much larger code and data size. Note that these values will 7691126372Snjlvary depending on the efficiency of the compiler and the compiler 7692126372Snjloptions used during generation. 7693114237Snjl 7694114237Snjl Previous Release 7695114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7696114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7697114237Snjl Current Release: 7698114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7699114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7700114237Snjl 7701114237Snjl 7702114237Snjl2) Linux 7703114237Snjl 7704114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 7705114237Snjl 7706114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 7707114237Snjl 7708114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 7709114237Snjl 7710114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 7711114237Snjl 7712114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 7713114237Snjlof schedule_work() 7714114237Snjl 7715114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 7716114237Snjl 7717114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 7718114237Snjl 7719114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 7720114237Snjl 7721114237SnjlSeveral changes have been made to the source code translation 7722114237Snjlutility that generates the Linux Code in order to make the code 7723114237Snjlmore "Linux-like": 7724114237Snjl 7725114237SnjlAll typedefs on structs and unions have been removed in keeping 7726114237Snjlwith the Linux coding style. 7727114237Snjl 7728114237SnjlRemoved the non-Linux SourceSafe module revision number from each 7729114237Snjlmodule header. 7730114237Snjl 7731114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 7732114237SnjlDoubled the number of symbols that are lowercased. 7733114237Snjl 7734114237SnjlFixed a problem where identifiers within procedure headers and 7735114237Snjlwithin quotes were not fully lower cased (they were left with a 7736114237Snjlstarting capital.) 7737114237Snjl 7738114237SnjlSome C macros whose only purpose is to allow the generation of 16- 7739114237Snjlbit code are now completely removed in the Linux code, increasing 7740114237Snjlreadability and maintainability. 7741114237Snjl 7742114237Snjl---------------------------------------- 7743114237Snjl 7744114237Snjl12 December 2002. Summary of changes for version 20021212. 7745114237Snjl 7746114237Snjl 7747114237Snjl1) ACPI CA Core Subsystem: 7748114237Snjl 7749114237SnjlFixed a problem where the creation of a zero-length AML Buffer 7750114237Snjlwould cause a fault. 7751114237Snjl 7752193267SjkimFixed a problem where a Buffer object that pointed to a static AML 7753126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 7754126372Snjlmemory corruption. 7755114237Snjl 7756114237SnjlFixed a problem where a user buffer (passed in to the external 7757114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 7758114237Snjlsmall to complete the operation, causing memory corruption. 7759114237Snjl 7760114237SnjlFixed a problem in the Buffer-to-String conversion code where a 7761114237Snjlstring of length one was always returned, regardless of the size 7762114237Snjlof the input Buffer object. 7763114237Snjl 7764114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 7765114237Snjllack of need and lack of consistent use. 7766114237Snjl 7767193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7768126372Snjlbelow. These are the code and data sizes for the acpica.lib 7769126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7770126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7771126372Snjlversion of the code includes the debug output trace mechanism and 7772193267Sjkimhas a much larger code and data size. Note that these values will 7773126372Snjlvary depending on the efficiency of the compiler and the compiler 7774126372Snjloptions used during generation. 7775114237Snjl 7776114237Snjl Previous Release 7777114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 7778114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 7779114237Snjl Current Release: 7780114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 7781114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 7782114237Snjl 7783114237Snjl 7784114237Snjl---------------------------------------- 7785114237Snjl05 December 2002. Summary of changes for version 20021205. 7786114237Snjl 7787114237Snjl1) ACPI CA Core Subsystem: 7788114237Snjl 7789114237SnjlFixed a problem where a store to a String or Buffer object could 7790114237Snjlcause corruption of the DSDT if the object type being stored was 7791114237Snjlthe same as the target object type and the length of the object 7792114237Snjlbeing stored was equal to or smaller than the original (existing) 7793114237Snjltarget object. This was seen to cause corruption of battery _BIF 7794114237Snjlbuffers if the _BIF method modified the buffer on the fly. 7795114237Snjl 7796193267SjkimFixed a problem where an internal error was generated if a control 7797126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 7798126372SnjlPackage declaration. This was caused by the deferred parsing of 7799126372Snjlthe control method and thus the deferred creation of the internal 7800126372Snjlmethod object. The solution to this problem was to create the 7801126372Snjlinternal method object at the moment the method is encountered in 7802126372Snjlthe first pass - so that subsequent references to the method will 7803126372Snjlable to obtain the required parameter count and thus properly 7804126372Snjlparse the method invocation. This problem presented itself as an 7805126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 7806114237Snjl 7807114237SnjlFixed a problem where the internal String object copy routine did 7808193267Sjkimnot always allocate sufficient memory for the target String object 7809126372Snjland caused memory corruption. This problem was seen to cause 7810126372Snjl"Allocation already present in list!" errors as memory allocation 7811126372Snjlbecame corrupted. 7812114237Snjl 7813193267SjkimImplemented a new function for the evaluation of namespace objects 7814126372Snjlthat allows the specification of the allowable return object 7815126372Snjltypes. This simplifies a lot of code that checks for a return 7816126372Snjlobject of one or more specific objects returned from the 7817114237Snjlevaluation (such as _STA, etc.) This may become and external 7818114237Snjlfunction if it would be useful to ACPI-related drivers. 7819114237Snjl 7820114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 7821114237Snjlclarity. 7822114237Snjl 7823114237SnjlCompleted additional code restructuring to allow more modular 7824114237Snjllinking for iASL compiler and AcpiExec. Several files were split 7825114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 7826114237Snjl 7827114237SnjlImplemented an abort mechanism to terminate an executing control 7828193267Sjkimmethod via the AML debugger. This feature is useful for debugging 7829126372Snjlcontrol methods that depend (wait) for specific hardware 7830126372Snjlresponses. 7831114237Snjl 7832193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7833126372Snjlbelow. These are the code and data sizes for the acpica.lib 7834126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7835126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7836126372Snjlversion of the code includes the debug output trace mechanism and 7837193267Sjkimhas a much larger code and data size. Note that these values will 7838126372Snjlvary depending on the efficiency of the compiler and the compiler 7839126372Snjloptions used during generation. 7840114237Snjl 7841114237Snjl Previous Release 7842114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7843114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 7844114237Snjl Current Release: 7845114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 7846114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 7847114237Snjl 7848114237Snjl 7849114237Snjl2) iASL Compiler/Disassembler 7850114237Snjl 7851114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 7852114237SnjlDescriptors. If specified in the ASL, the optional "Resource 7853114237SnjlSource Index" and "Resource Source" fields were not inserted into 7854114237Snjlthe correct location within the AML resource descriptor, creating 7855114237Snjlan invalid descriptor. 7856114237Snjl 7857193267SjkimFixed a disassembler problem for "Interrupt" resource descriptors. 7858126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 7859126372Snjlwere ignored. 7860114237Snjl 7861114237Snjl 7862114237Snjl---------------------------------------- 7863114237Snjl22 November 2002. Summary of changes for version 20021122. 7864114237Snjl 7865114237Snjl 7866114237Snjl1) ACPI CA Core Subsystem: 7867114237Snjl 7868114237SnjlFixed a reported problem where an object stored to a Method Local 7869114237Snjlor Arg was not copied to a new object during the store - the 7870114237Snjlobject pointer was simply copied to the Local/Arg. This caused 7871114237Snjlall subsequent operations on the Local/Arg to also affect the 7872114237Snjloriginal source of the store operation. 7873114237Snjl 7874114237SnjlFixed a problem where a store operation to a Method Local or Arg 7875114237Snjlwas not completed properly if the Local/Arg contained a reference 7876114237Snjl(from RefOf) to a named field. The general-purpose store-to- 7877114237Snjlnamespace-node code is now used so that this case is handled 7878114237Snjlautomatically. 7879114237Snjl 7880193267SjkimFixed a problem where the internal object copy routine would cause 7881126372Snjla protection fault if the object being copied was a Package and 7882126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 7883114237Snjlpackage. 7884114237Snjl 7885114237SnjlFixed a problem with the GPE initialization that resulted from an 7886114237Snjlambiguity in the ACPI specification. One section of the 7887114237Snjlspecification states that both the address and length of the GPE 7888193267Sjkimblock must be zero if the block is not supported. Another section 7889126372Snjlimplies that only the address need be zero if the block is not 7890193267Sjkimsupported. The code has been changed so that both the address and 7891126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 7892126372Snjlif either the address or the length is zero, the GPE block is 7893126372Snjlinvalid.) 7894114237Snjl 7895193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7896126372Snjlbelow. These are the code and data sizes for the acpica.lib 7897126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7898126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7899126372Snjlversion of the code includes the debug output trace mechanism and 7900193267Sjkimhas a much larger code and data size. Note that these values will 7901126372Snjlvary depending on the efficiency of the compiler and the compiler 7902126372Snjloptions used during generation. 7903114237Snjl 7904114237Snjl Previous Release 7905114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7906114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7907114237Snjl Current Release: 7908114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7909114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 7910114237Snjl 7911114237Snjl 7912114237Snjl2) Linux 7913114237Snjl 7914114237SnjlCleaned up EC driver. Exported an external EC read/write 7915114237Snjlinterface. By going through this, other drivers (most notably 7916114237Snjlsonypi) will be able to serialize access to the EC. 7917114237Snjl 7918114237Snjl 7919114237Snjl3) iASL Compiler/Disassembler 7920114237Snjl 7921114237SnjlImplemented support to optionally generate include files for both 7922114237SnjlASM and C (the -i switch). This simplifies BIOS development by 7923114237Snjlautomatically creating include files that contain external 7924114237Snjldeclarations for the symbols that are created within the 7925167802Sjkim 7926114237Snjl(optionally generated) ASM and C AML source files. 7927114237Snjl 7928114237Snjl 7929114237Snjl---------------------------------------- 7930107325Siwasaki15 November 2002. Summary of changes for version 20021115. 7931104470Siwasaki 7932107325Siwasaki1) ACPI CA Core Subsystem: 7933107325Siwasaki 7934114237SnjlFixed a memory leak problem where an error during resolution of 7935167802Sjkim 7936114237Snjlmethod arguments during a method invocation from another method 7937114237Snjlfailed to cleanup properly by deleting all successfully resolved 7938114237Snjlargument objects. 7939107325Siwasaki 7940114237SnjlFixed a problem where the target of the Index() operator was not 7941114237Snjlcorrectly constructed if the source object was a package. This 7942114237Snjlproblem has not been detected because the use of a target operand 7943114237Snjlwith Index() is very rare. 7944107325Siwasaki 7945107325SiwasakiFixed a problem with the Index() operator where an attempt was 7946107325Siwasakimade to delete the operand objects twice. 7947107325Siwasaki 7948107325SiwasakiFixed a problem where an attempt was made to delete an operand 7949114237Snjltwice during execution of the CondRefOf() operator if the target 7950114237Snjldid not exist. 7951107325Siwasaki 7952114237SnjlImplemented the first of perhaps several internal create object 7953193267Sjkimfunctions that create and initialize a specific object type. This 7954126372Snjlconsolidates duplicated code wherever the object is created, thus 7955126372Snjlshrinking the size of the subsystem. 7956107325Siwasaki 7957114237SnjlImplemented improved debug/error messages for errors that occur 7958114237Snjlduring nested method invocations. All executing method pathnames 7959193267Sjkimare displayed (with the error) as the call stack is unwound - thus 7960126372Snjlsimplifying debug. 7961107325Siwasaki 7962107325SiwasakiFixed a problem introduced in the 10/02 release that caused 7963114237Snjlpremature deletion of a buffer object if a buffer was used as an 7964114237SnjlASL operand where an integer operand is required (Thus causing an 7965193267Sjkimimplicit object conversion from Buffer to Integer.) The change in 7966126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 7967114237Snjlincorrectly.) 7968107325Siwasaki 7969193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7970126372Snjlbelow. These are the code and data sizes for the acpica.lib 7971126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7972126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7973126372Snjlversion of the code includes the debug output trace mechanism and 7974193267Sjkimhas a much larger code and data size. Note that these values will 7975126372Snjlvary depending on the efficiency of the compiler and the compiler 7976126372Snjloptions used during generation. 7977107325Siwasaki 7978107325Siwasaki Previous Release 7979107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7980107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7981107325Siwasaki Current Release: 7982107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7983107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7984107325Siwasaki 7985107325Siwasaki 7986107325Siwasaki2) Linux 7987107325Siwasaki 7988114237SnjlChanged the implementation of the ACPI semaphores to use down() 7989114237Snjlinstead of down_interruptable(). It is important that the 7990114237Snjlexecution of ACPI control methods not be interrupted by signals. 7991114237SnjlMethods must run to completion, or the system may be left in an 7992114237Snjlunknown/unstable state. 7993107325Siwasaki 7994193267SjkimFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set. 7995126372Snjl(Shawn Starr) 7996107325Siwasaki 7997107325Siwasaki 7998107325Siwasaki3) iASL Compiler/Disassembler 7999107325Siwasaki 8000107325Siwasaki 8001114237SnjlChanged the default location of output files. All output files 8002114237Snjlare now placed in the current directory by default instead of in 8003114237Snjlthe directory of the source file. This change may affect some 8004114237Snjlexisting makefiles, but it brings the behavior of the compiler in 8005114237Snjlline with other similar tools. The location of the output files 8006114237Snjlcan be overridden with the -p command line switch. 8007107325Siwasaki 8008114237Snjl 8009107325Siwasaki---------------------------------------- 8010107325Siwasaki11 November 2002. Summary of changes for version 20021111. 8011107325Siwasaki 8012107325Siwasaki 8013114237Snjl0) ACPI Specification 2.0B is released and is now available at: 8014114237Snjlhttp://www.acpi.info/index.html 8015107325Siwasaki 8016107325Siwasaki 8017107325Siwasaki1) ACPI CA Core Subsystem: 8018107325Siwasaki 8019107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 8020114237SnjlThis includes the early detection and handoff of the request to 8021114237Snjlthe SMBus region handler (avoiding all of the complex field 8022107325Siwasakisupport code), and support for the bidirectional return packet 8023107325Siwasakifrom an SMBus write operation. This paves the way for the 8024107325Siwasakidevelopment of SMBus drivers in each host operating system. 8025107325Siwasaki 8026107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 8027107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 8028107325Siwasakispecification. This had the side effect of causing ASL 8029107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 8030107325Siwasakiforever. Changed all internal references to the ACPI timeout 8031193267Sjkimparameter to 16 bits to prevent future problems. Changed the name 8032126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 8033107325Siwasaki 8034193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8035126372Snjlbelow. These are the code and data sizes for the acpica.lib 8036126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8037126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8038126372Snjlversion of the code includes the debug output trace mechanism and 8039193267Sjkimhas a much larger code and data size. Note that these values will 8040126372Snjlvary depending on the efficiency of the compiler and the compiler 8041126372Snjloptions used during generation. 8042107325Siwasaki 8043107325Siwasaki Previous Release 8044107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 8045107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 8046107325Siwasaki Current Release: 8047107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 8048107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 8049107325Siwasaki 8050107325Siwasaki 8051107325Siwasaki2) Linux 8052107325Siwasaki 8053107325SiwasakiModule loading/unloading fixes (John Cagle) 8054107325Siwasaki 8055107325Siwasaki 8056107325Siwasaki3) iASL Compiler/Disassembler 8057107325Siwasaki 8058107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 8059107325Siwasaki 8060107325SiwasakiImplemented support for the disassembly of all SMBus protocol 8061107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 8062107325Siwasaki 8063107325Siwasaki---------------------------------------- 8064107325Siwasaki01 November 2002. Summary of changes for version 20021101. 8065107325Siwasaki 8066107325Siwasaki 8067107325Siwasaki1) ACPI CA Core Subsystem: 8068107325Siwasaki 8069193267SjkimFixed a problem where platforms that have a GPE1 block but no GPE0 8070126372Snjlblock were not handled correctly. This resulted in a "GPE 8071114237Snjloverlap" error message. GPE0 is no longer required. 8072107325Siwasaki 8073107325SiwasakiRemoved code added in the previous release that inserted nodes 8074114237Snjlinto the namespace in alphabetical order. This caused some side- 8075114237Snjleffects on various machines. The root cause of the problem is 8076114237Snjlstill under investigation since in theory, the internal ordering 8077114237Snjlof the namespace nodes should not matter. 8078107325Siwasaki 8079107325Siwasaki 8080114237SnjlEnhanced error reporting for the case where a named object is not 8081114237Snjlfound during control method execution. The full ACPI namepath 8082114237Snjl(name reference) of the object that was not found is displayed in 8083114237Snjlthis case. 8084107325Siwasaki 8085193267SjkimNote: as a result of the overhaul of the namespace object types in 8086126372Snjlthe previous release, the namespace nodes for the predefined 8087114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 8088114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 8089114237Snjlmanagement code but may affect code that walks the namespace tree 8090114237Snjllooking for specific object types. 8091114237Snjl 8092193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8093126372Snjlbelow. These are the code and data sizes for the acpica.lib 8094126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8095126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8096126372Snjlversion of the code includes the debug output trace mechanism and 8097193267Sjkimhas a much larger code and data size. Note that these values will 8098126372Snjlvary depending on the efficiency of the compiler and the compiler 8099126372Snjloptions used during generation. 8100107325Siwasaki 8101107325Siwasaki Previous Release 8102107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 8103107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 8104107325Siwasaki Current Release: 8105107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 8106107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 8107107325Siwasaki 8108107325Siwasaki 8109107325Siwasaki2) Linux 8110107325Siwasaki 8111107325SiwasakiFixed a problem introduced in the previous release where the 8112193267SjkimProcessor and Thermal objects were not recognized and installed in 8113193267Sjkim/proc. This was related to the scope type change described above. 8114107325Siwasaki 8115107325Siwasaki 8116107325Siwasaki3) iASL Compiler/Disassembler 8117107325Siwasaki 8118114237SnjlImplemented the -g option to get all of the required ACPI tables 8119114237Snjlfrom the registry and save them to files (Windows version of the 8120193267Sjkimcompiler only.) The required tables are the FADT, FACS, and DSDT. 8121107325Siwasaki 8122114237SnjlAdded ACPI table checksum validation during table disassembly in 8123114237Snjlorder to catch corrupted tables. 8124107325Siwasaki 8125107325Siwasaki 8126107325Siwasaki---------------------------------------- 8127107325Siwasaki22 October 2002. Summary of changes for version 20021022. 8128107325Siwasaki 8129107325Siwasaki1) ACPI CA Core Subsystem: 8130107325Siwasaki 8131114237SnjlImplemented a restriction on the Scope operator that the target 8132114237Snjlmust already exist in the namespace at the time the operator is 8133114237Snjlencountered (during table load or method execution). In other 8134114237Snjlwords, forward references are not allowed and Scope() cannot 8135114237Snjlcreate a new object. This changes the previous behavior where the 8136193267Sjkiminterpreter would create the name if not found. This new behavior 8137126372Snjlcorrectly enables the search-to-root algorithm during namespace 8138126372Snjllookup of the target name. Because of this upsearch, this fixes 8139126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 8140126372Snjlinterpreter and iASL compiler compatible with other ACPI 8141114237Snjlimplementations. 8142107325Siwasaki 8143114237SnjlCompleted a major overhaul of the internal ACPI object types for 8144114237Snjlthe ACPI Namespace and the associated operand objects. Many of 8145114237Snjlthese types had become obsolete with the introduction of the two- 8146114237Snjlpass namespace load. This cleanup simplifies the code and makes 8147114237Snjlthe entire namespace load mechanism much clearer and easier to 8148114237Snjlunderstand. 8149107325Siwasaki 8150114237SnjlImproved debug output for tracking scope opening/closing to help 8151114237Snjldiagnose scoping issues. The old scope name as well as the new 8152114237Snjlscope name are displayed. Also improved error messages for 8153114237Snjlproblems with ASL Mutex objects and error messages for GPE 8154114237Snjlproblems. 8155107325Siwasaki 8156107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 8157107325Siwasaki 8158114237SnjlAll string output (for all namespace/object dumps) now uses the 8159193267Sjkimcommon ACPI string output procedure which handles escapes properly 8160126372Snjland does not emit non-printable characters. 8161107325Siwasaki 8162107325SiwasakiFixed some issues with constants in the 64-bit version of the 8163107325Siwasakilocal C library (utclib.c) 8164107325Siwasaki 8165107325Siwasaki 8166107325Siwasaki2) Linux 8167107325Siwasaki 8168107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 8169107325Siwasakiinterrupt level. 8170107325Siwasaki 8171107325Siwasaki 8172107325Siwasaki3) iASL Compiler/Disassembler 8173107325Siwasaki 8174193267SjkimImplemented ACPI 2.0B grammar change that disallows all Type 1 and 8175126372Snjl2 opcodes outside of a control method. This means that the 8176114237Snjl"executable" operators (versus the "namespace" operators) cannot 8177193267Sjkimbe used at the table level; they can only be used within a control 8178126372Snjlmethod. 8179107325Siwasaki 8180107325SiwasakiImplemented the restriction on the Scope() operator where the 8181107325Siwasakitarget must already exist in the namespace at the time the 8182114237Snjloperator is encountered (during ASL compilation). In other words, 8183193267Sjkimforward references are not allowed and Scope() cannot create a new 8184126372Snjlobject. This makes the iASL compiler compatible with other ACPI 8185193267Sjkimimplementations and makes the Scope() implementation adhere to the 8186126372SnjlACPI specification. 8187107325Siwasaki 8188193267SjkimFixed a problem where namepath optimization for the Alias operator 8189193267Sjkimwas optimizing the wrong path (of the two namepaths.) This caused 8190126372Snjla "Missing alias link" error message. 8191107325Siwasaki 8192114237SnjlFixed a problem where an "unknown reserved name" warning could be 8193114237Snjlincorrectly generated for names like "_SB" when the trailing 8194114237Snjlunderscore is not used in the original ASL. 8195107325Siwasaki 8196107325SiwasakiFixed a problem where the reserved name check did not handle 8197114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 8198114237Snjlthe NamePath was examined instead of the last NameSeg. 8199107325Siwasaki 8200107325Siwasaki 8201107325Siwasaki---------------------------------------- 8202107325Siwasaki 8203104470Siwasaki02 October 2002. Summary of changes for this release. 8204104470Siwasaki 8205104470Siwasaki 8206104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 8207104470Siwasaki 8208104470SiwasakiFixed a problem where a store/copy of a string to an existing 8209193267Sjkimstring did not always set the string length properly in the String 8210126372Snjlobject. 8211104470Siwasaki 8212104470SiwasakiFixed a reported problem with the ToString operator where the 8213193267Sjkimbehavior was identical to the ToHexString operator instead of just 8214126372Snjlsimply converting a raw buffer to a string data type. 8215104470Siwasaki 8216104470SiwasakiFixed a problem where CopyObject and the other "explicit" 8217193267Sjkimconversion operators were not updating the internal namespace node 8218126372Snjltype as part of the store operation. 8219104470Siwasaki 8220104470SiwasakiFixed a memory leak during implicit source operand conversion 8221193267Sjkimwhere the original object was not deleted if it was converted to a 8222126372Snjlnew object of a different type. 8223104470Siwasaki 8224193267SjkimEnhanced error messages for all problems associated with namespace 8225193267Sjkimlookups. Common procedure generates and prints the lookup name as 8226126372Snjlwell as the formatted status. 8227104470Siwasaki 8228104470SiwasakiCompleted implementation of a new design for the Alias support 8229193267Sjkimwithin the namespace. The existing design did not handle the case 8230193267Sjkimwhere a new object was assigned to one of the two names due to the 8231193267Sjkimuse of an explicit conversion operator, resulting in the two names 8232126372Snjlpointing to two different objects. The new design simply points 8233126372Snjlthe Alias name to the original name node - not to the object. 8234193267SjkimThis results in a level of indirection that must be handled in the 8235126372Snjlname resolution mechanism. 8236104470Siwasaki 8237193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8238126372Snjlbelow. These are the code and data sizes for the acpica.lib 8239126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8240126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8241126372Snjlversion of the code includes the debug output trace mechanism and 8242193267Sjkimhas a larger code and data size. Note that these values will vary 8243126372Snjldepending on the efficiency of the compiler and the compiler 8244126372Snjloptions used during generation. 8245104470Siwasaki 8246104470Siwasaki Previous Release 8247104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 8248104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 8249104470Siwasaki Current Release: 8250104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 8251104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 8252104470Siwasaki 8253104470Siwasaki 8254104470Siwasaki2) Linux 8255104470Siwasaki 8256104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 8257104470SiwasakiNeumann) 8258104470Siwasaki 8259104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 8260104470Siwasaki 8261114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 8262104470Siwasaki 8263104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 8264104470Siwasaki 8265104470SiwasakiIA64 fixes. (David Mosberger) 8266104470Siwasaki 8267104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 8268104470Siwasaki 8269104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 8270104470SiwasakiBrodowski) 8271104470Siwasaki 8272104470Siwasaki 8273104470Siwasaki3) iASL Compiler/Disassembler 8274104470Siwasaki 8275104470SiwasakiClarified some warning/error messages. 8276104470Siwasaki 8277104470Siwasaki 8278104470Siwasaki---------------------------------------- 8279104470Siwasaki18 September 2002. Summary of changes for this release. 8280104470Siwasaki 8281104470Siwasaki 8282104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 8283104470Siwasaki 8284114237SnjlFixed a reported problem with reference chaining (via the Index() 8285193267Sjkimand RefOf() operators) in the ObjectType() and SizeOf() operators. 8286126372SnjlThe definition of these operators includes the dereferencing of 8287126372Snjlall chained references to return information on the base object. 8288104470Siwasaki 8289104470SiwasakiFixed a problem with stores to indexed package elements - the 8290104470Siwasakiexisting code would not complete the store if an "implicit 8291114237Snjlconversion" was not performed. In other words, if the existing 8292114237Snjlobject (package element) was to be replaced completely, the code 8293114237Snjldidn't handle this case. 8294104470Siwasaki 8295104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 8296104470Siwasakitarget name to refer to an object of type Integer, String, or 8297104470SiwasakiBuffer, in addition to the scoping object types (Device, 8298104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 8299114237SnjlThis allows existing AML code that has workarounds for a bug in 8300193267SjkimWindows to function properly. A warning is issued, however. This 8301126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 8302126372Snjlan example of this type of ASL code: 8303104470Siwasaki 8304104470Siwasaki Name(DEB,0x00) 8305104470Siwasaki Scope(DEB) 8306104470Siwasaki { 8307104470Siwasaki 8308114237SnjlFixed some reported problems with 64-bit integer support in the 8309114237Snjllocal implementation of C library functions (clib.c) 8310104470Siwasaki 8311104470Siwasaki 8312104470Siwasaki2) Linux 8313104470Siwasaki 8314104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 8315104470Siwasakiundefined in non-SMP. 8316104470Siwasaki 8317114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 8318114237Snjlsystems that do not have an interrupt override entry in the MADT. 8319104470Siwasaki 8320104470Siwasaki2.5 big driver reorganization (Pat Mochel) 8321104470Siwasaki 8322104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 8323104470Siwasaki 8324104470SiwasakiNew blacklist entries (Andi Kleen) 8325104470Siwasaki 8326114237SnjlBlacklist improvements. Split blacklist code out into a separate 8327114237Snjlfile. Move checking the blacklist to very early. Previously, we 8328114237Snjlwould use ACPI tables, and then halfway through init, check the 8329114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 8330114237Snjlback to non-ACPI. 8331104470Siwasaki 8332104470Siwasaki 8333104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 8334104470Siwasaki 8335114237SnjlFixed a problem where the typechecking code didn't know that an 8336114237Snjlalias could point to a method. In other words, aliases were not 8337114237Snjlbeing dereferenced during typechecking. 8338104470Siwasaki 8339104470Siwasaki 8340104470Siwasaki---------------------------------------- 8341104470Siwasaki29 August 2002. Summary of changes for this release. 8342104470Siwasaki 8343104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 8344104470Siwasaki 8345114237SnjlIf the target of a Scope() operator already exists, it must be an 8346114237Snjlobject type that actually opens a scope -- such as a Device, 8347193267SjkimMethod, Scope, etc. This is a fatal runtime error. Similar error 8348126372Snjlcheck has been added to the iASL compiler also. 8349104470Siwasaki 8350114237SnjlTightened up the namespace load to disallow multiple names in the 8351114237Snjlsame scope. This previously was allowed if both objects were of 8352114237Snjlthe same type. (i.e., a lookup was the same as entering a new 8353114237Snjlname). 8354104470Siwasaki 8355104470Siwasaki 8356104470Siwasaki2) Linux 8357104470Siwasaki 8358104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 8359104470Siwasakipolarity. 8360104470Siwasaki 8361104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 8362104470Siwasaki 8363104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 8364104470Siwasakiinterpreter *or* the tables. 8365104470Siwasaki 8366193267SjkimAdded arch-neutral support for parsing SLIT and SRAT tables (Kochi 8367126372SnjlTakayoshi) 8368104470Siwasaki 8369104470Siwasaki 8370104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 8371104470Siwasaki 8372104470SiwasakiImplemented namepath optimization for name declarations. For 8373104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 8374104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 8375104470Siwasaki\_SB_ scope. This optimization is in addition to the named 8376104470Siwasakireference path optimization first released in the previous 8377114237Snjlversion. This would seem to complete all possible optimizations 8378114237Snjlfor namepaths within the ASL/AML. 8379104470Siwasaki 8380114237SnjlIf the target of a Scope() operator already exists, it must be an 8381114237Snjlobject type that actually opens a scope -- such as a Device, 8382114237SnjlMethod, Scope, etc. 8383104470Siwasaki 8384114237SnjlImplemented a check and warning for unreachable code in the same 8385114237Snjlblock below a Return() statement. 8386104470Siwasaki 8387114237SnjlFixed a problem where the listing file was not generated if the 8388114237Snjlcompiler aborted if the maximum error count was exceeded (200). 8389104470Siwasaki 8390193267SjkimFixed a problem where the typechecking of method return values was 8391126372Snjlbroken. This includes the check for a return value when the 8392114237Snjlmethod is invoked as a TermArg (a return value is expected.) 8393104470Siwasaki 8394104470SiwasakiFixed a reported problem where EOF conditions during a quoted 8395104470Siwasakistring or comment caused a fault. 8396104470Siwasaki 8397104470Siwasaki 8398104470Siwasaki---------------------------------------- 8399102550Siwasaki15 August 2002. Summary of changes for this release. 8400102550Siwasaki 8401102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 8402102550Siwasaki 8403114237SnjlFixed a reported problem where a Store to a method argument that 8404193267Sjkimcontains a reference did not perform the indirect store correctly. 8405126372SnjlThis problem was created during the conversion to the new 8406126372Snjlreference object model - the indirect store to a method argument 8407126372Snjlcode was not updated to reflect the new model. 8408102550Siwasaki 8409114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 8410193267Sjkimhandle corner cases, and improve code legibility (Kochi Takayoshi) 8411102550Siwasaki 8412102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 8413114237Snjlprefix. The heavy use of the carat operator by the new namepath 8414193267Sjkimoptimization in the iASL compiler uncovered a problem with the AML 8415126372Snjlinterpreter handling of this prefix. In the case where one or 8416126372Snjlmore carats precede a single nameseg, the nameseg was treated as 8417126372Snjlstandalone and the search rule (to root) was inadvertently 8418114237Snjlapplied. This could cause both the iASL compiler and the 8419114237Snjlinterpreter to find the wrong object or to miss the error that 8420114237Snjlshould occur if the object does not exist at that exact pathname. 8421102550Siwasaki 8422114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 8423193267Sjkimload. This was a relatively minor tweak to the table loading code 8424126372Snjl(a problem caused by the unexpected encounter with a method 8425193267Sjkiminvocation not within a control method), but it does not solve the 8426126372Snjloverall issue of the execution of AML code at the table level. 8427126372SnjlThis investigation is still ongoing. 8428102550Siwasaki 8429193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8430126372Snjlbelow. These are the code and data sizes for the acpica.lib 8431126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8432126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8433126372Snjlversion of the code includes the debug output trace mechanism and 8434193267Sjkimhas a larger code and data size. Note that these values will vary 8435126372Snjldepending on the efficiency of the compiler and the compiler 8436126372Snjloptions used during generation. 8437102550Siwasaki 8438102550Siwasaki Previous Release 8439104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 8440104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 8441102550Siwasaki Current Release: 8442104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 8443104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 8444102550Siwasaki 8445102550Siwasaki 8446102550Siwasaki2) Linux 8447102550Siwasaki 8448102550SiwasakiRemove redundant slab.h include (Brad Hards) 8449102550Siwasaki 8450102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 8451102550Siwasaki 8452102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 8453102550Siwasaki 8454104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 8455104470SiwasakiMachek) 8456102550Siwasaki 8457102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 8458102550Siwasaki 8459102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 8460102550Siwasaki 8461102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 8462102550Siwasaki 8463102550Siwasaki 8464102550Siwasaki3) iASL Compiler/Disassembler 8465102550Siwasaki 8466114237SnjlReworked the compiler options to make them more consistent and to 8467114237Snjluse two-letter options where appropriate. We were running out of 8468114237Snjlsensible letters. This may break some makefiles, so check the 8469114237Snjlcurrent options list by invoking the compiler with no parameters. 8470102550Siwasaki 8471102550SiwasakiCompleted the design and implementation of the ASL namepath 8472114237Snjloptimization option for the compiler. This option optimizes all 8473114237Snjlreferences to named objects to the shortest possible path. The 8474193267Sjkimfirst attempt tries to utilize a single nameseg (4 characters) and 8475126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 8476126372Snjlcannot be used (because either the name is not in the search path 8477126372Snjlor there is a conflict with another object with the same name), 8478126372Snjlthe pathname is optimized using the carat prefix (usually a 8479126372Snjlshorter string than specifying the entire path from the root.) 8480102550Siwasaki 8481114237SnjlImplemented support to obtain the DSDT from the Windows registry 8482114237Snjl(when the disassembly option is specified with no input file). 8483114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 8484114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 8485114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 8486114237Snjlfunction in the DOS OSL to make the disassembler truly OS 8487114237Snjlindependent. 8488102550Siwasaki 8489114237SnjlImplemented a new option to disassemble and compile in one step. 8490114237SnjlWhen used without an input filename, this option will grab the 8491193267SjkimDSDT from the local machine, disassemble it, and compile it in one 8492126372Snjlstep. 8493102550Siwasaki 8494114237SnjlAdded a warning message for invalid escapes (a backslash followed 8495114237Snjlby any character other than the allowable escapes). This catches 8496114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 8497167802Sjkim 8498193267SjkimAlso, there are numerous instances in the ACPI specification where 8499126372Snjlthis error occurs. 8500102550Siwasaki 8501104470SiwasakiAdded a compiler option to disable all optimizations. This is 8502114237Snjlbasically the "compatibility mode" because by using this option, 8503114237Snjlthe AML code will come out exactly the same as other ASL 8504114237Snjlcompilers. 8505102550Siwasaki 8506114237SnjlAdded error messages for incorrectly ordered dependent resource 8507114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 8508114237Snjldependent resource list, nested dependent function macros (both 8509114237Snjlstart and end), and missing StartDependentFn macro. These are 8510114237Snjlcommon errors that should be caught at compile time. 8511102550Siwasaki 8512114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 8513114237Snjlmust be included in the namespace for proper disassembly (because 8514114237Snjlthe disassembler must know the number of arguments.) 8515102550Siwasaki 8516104470SiwasakiAdded an "optimization" message type that is optional (off by 8517114237Snjldefault). This message is used for all optimizations - including 8518193267Sjkimconstant folding, integer optimization, and namepath optimization. 8519102550Siwasaki 8520102550Siwasaki---------------------------------------- 8521102550Siwasaki25 July 2002. Summary of changes for this release. 8522102550Siwasaki 8523102550Siwasaki 8524102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 8525102550Siwasaki 8526114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 8527193267Sjkimcode and has been integrated into the iASL compiler (see below) as 8528126372Snjlwell as the single-step disassembly for the AML debugger and the 8529126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 8530126372Snjlresource templates and macros are fully supported. The 8531114237Snjldisassembler has been tested on over 30 different AML files, 8532114237Snjlproducing identical AML when the resulting disassembled ASL file 8533114237Snjlis recompiled with the same ASL compiler. 8534102550Siwasaki 8535114237SnjlModified the Resource Manager to allow zero interrupts and zero 8536114237Snjldma channels during the GetCurrentResources call. This was 8537114237Snjlcausing problems on some platforms. 8538102550Siwasaki 8539114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 8540114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 8541114237Snjlinterfaces. 8542102550Siwasaki 8543193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8544126372Snjlbelow. These are the code and data sizes for the acpica.lib 8545126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8546126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8547126372Snjlversion of the code includes the debug output trace mechanism and 8548193267Sjkimhas a larger code and data size. Note that these values will vary 8549126372Snjldepending on the efficiency of the compiler and the compiler 8550126372Snjloptions used during generation. 8551102550Siwasaki 8552102550Siwasaki Previous Release 8553104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 8554104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 8555102550Siwasaki Current Release: 8556104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 8557104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 8558102550Siwasaki 8559102550Siwasaki 8560102550Siwasaki2) Linux 8561102550Siwasaki 8562102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 8563102550Siwasaki 8564114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 8565114237Snjl(Richard Schaal) 8566102550Siwasaki 8567102550Siwasaki 8568102550Siwasaki3) iASL compiler 8569102550Siwasaki 8570114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 8571114237Snjloption invokes the disassembler to completely disassemble an 8572114237Snjlinput AML file, producing as output a text ASL file with the 8573114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 8574114237Snjlsource files.) A future enhancement will allow the disassembler 8575114237Snjlto obtain the BIOS DSDT from the registry under Windows. 8576102550Siwasaki 8577102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 8578102550Siwasakidescriptors where an invalid AML sequence was created. 8579102550Siwasaki 8580114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 8581114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 8582114237Snjlcausing reduction conflicts. 8583102550Siwasaki 8584104470SiwasakiFixed a problem where the Ones opcode could get converted to a 8585193267Sjkimvalue of zero if "Ones" was used where a byte, word or dword value 8586126372Snjlwas expected. The 64-bit value is now truncated to the correct 8587126372Snjlsize with the correct value. 8588102550Siwasaki 8589102550Siwasaki 8590167802Sjkim 8591102550Siwasaki---------------------------------------- 8592102550Siwasaki02 July 2002. Summary of changes for this release. 8593102550Siwasaki 8594102550Siwasaki 8595102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 8596102550Siwasaki 8597114237SnjlThe Table Manager code has been restructured to add several new 8598114237Snjlfeatures. Tables that are not required by the core subsystem 8599114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 8600193267Sjkimvalidated in any way and are returned from AcpiGetFirmwareTable if 8601126372Snjlrequested. The AcpiOsTableOverride interface is now called for 8602126372Snjleach table that is loaded by the subsystem in order to allow the 8603126372Snjlhost to override any table it chooses. Previously, only the DSDT 8604126372Snjlcould be overridden. Added one new files, tbrsdt.c and 8605114237Snjltbgetall.c. 8606102550Siwasaki 8607193267SjkimFixed a problem with the conversion of internal package objects to 8608126372Snjlexternal objects (when a package is returned from a control 8609114237Snjlmethod.) The return buffer length was set to zero instead of the 8610114237Snjlproper length of the package object. 8611102550Siwasaki 8612104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 8613114237Snjloperators when passing reference arguments to control methods. A 8614114237Snjlnew type of Reference object is used internally for references 8615114237Snjlproduced by the RefOf operator. 8616102550Siwasaki 8617193267SjkimAdded additional error messages in the Resource Manager to explain 8618126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 8619102550Siwasaki 8620104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 8621193267Sjkimfiner granularity initialization sequence. These two calls should 8622126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 8623114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 8624114237Snjlsame. 8625102550Siwasaki 8626102550Siwasaki 8627102550Siwasaki2) Linux 8628102550Siwasaki 8629114237SnjlUpdated the ACPI utilities module to understand the new style of 8630193267Sjkimfully resolved package objects that are now returned from the core 8631126372Snjlsubsystem. This eliminates errors of the form: 8632102550Siwasaki 8633102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 8634102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 8635102550Siwasaki Invalid element in package (not a device reference) 8636102550Siwasaki 8637102550SiwasakiThe method evaluation utility uses the new buffer allocation 8638102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 8639102550Siwasaki 8640102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 8641167802Sjkim 8642114237SnjlController before the namespace has been fully initialized, which 8643114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 8644114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 8645114237Snjllimited testing was performed of the added functionality.) 8646102550Siwasaki 8647102550SiwasakiFixed memory leaks in the EC driver. 8648102550Siwasaki 8649102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 8650102550Siwasaki 8651114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 8652114237Snjlno longer needed since acpi_evaluate_object can optionally 8653104470Siwasakiallocate memory for the return object. 8654102550Siwasaki 8655193267SjkimImplemented fix for keyboard hang when getting battery readings on 8656126372Snjlsome systems (Stephen White) 8657102550Siwasaki 8658102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 8659102550Siwasaki 8660114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 8661114237Snjlsupport 8662102550Siwasaki 8663102550Siwasaki---------------------------------------- 8664102550Siwasaki11 June 2002. Summary of changes for this release. 8665102550Siwasaki 8666102550Siwasaki 8667102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 8668102550Siwasaki 8669104470SiwasakiFixed a reported problem where constants such as Zero and One 8670114237Snjlappearing within _PRT packages were not handled correctly within 8671114237Snjlthe resource manager code. Originally reported against the ASL 8672114237Snjlcompiler because the code generator now optimizes integers to 8673193267Sjkimtheir minimal AML representation (i.e. AML constants if possible.) 8674126372SnjlThe _PRT code now handles all AML constant opcodes correctly 8675126372Snjl(Zero, One, Ones, Revision). 8676102550Siwasaki 8677102550SiwasakiFixed a problem with the Concatenate operator in the AML 8678193267Sjkiminterpreter where a buffer result object was incorrectly marked as 8679126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 8680102550Siwasaki 8681104470SiwasakiAll package sub-objects are now fully resolved before they are 8682114237Snjlreturned from the external ACPI interfaces. This means that name 8683114237Snjlstrings are resolved to object handles, and constant operators 8684114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 8685102550Siwasaki 8686102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 8687104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 8688104470Siwasakiwithin the AML stream. This has simplified and reduced the 8689104470Siwasakigenerated code size of the subsystem by eliminating about 10 8690104470Siwasakiswitch statements for these constants (which previously were 8691193267Sjkimcontained in Reference objects.) The complicating issues are that 8692126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 8693193267Sjkimoptional target operands and stores to constants are defined to be 8694126372Snjlno-ops. 8695102550Siwasaki 8696193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8697126372Snjlbelow. These are the code and data sizes for the acpica.lib 8698114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8699114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8700114237Snjlversion of the code includes the debug output trace mechanism and 8701193267Sjkimhas a larger code and data size. Note that these values will vary 8702126372Snjldepending on the efficiency of the compiler and the compiler 8703114237Snjloptions used during generation. 8704102550Siwasaki 8705102550Siwasaki Previous Release 8706104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 8707104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 8708102550Siwasaki Current Release: 8709104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 8710104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 8711102550Siwasaki 8712102550Siwasaki 8713102550Siwasaki2) Linux 8714102550Siwasaki 8715167802Sjkim 8716104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 8717104470Siwasakibridges (Bjorn Helgaas). 8718102550Siwasaki 8719102550Siwasaki 8720102550Siwasaki3) iASL Compiler Version X2046: 8721102550Siwasaki 8722193267SjkimFixed a problem where the "_DDN" reserved name was defined to be a 8723126372Snjlcontrol method with one argument. There are no arguments, and 8724114237Snjl_DDN does not have to be a control method. 8725102550Siwasaki 8726114237SnjlFixed a problem with the Linux version of the compiler where the 8727114237Snjlsource lines printed with error messages were the wrong lines. 8728114237SnjlThis turned out to be the "LF versus CR/LF" difference between 8729114237SnjlWindows and Unix. This appears to be the longstanding issue 8730114237Snjlconcerning listing output and error messages. 8731102550Siwasaki 8732114237SnjlFixed a problem with the Linux version of compiler where opcode 8733114237Snjlnames within error messages were wrong. This was caused by a 8734114237Snjlslight difference in the output of the Flex tool on Linux versus 8735114237SnjlWindows. 8736102550Siwasaki 8737193267SjkimFixed a problem with the Linux compiler where the hex output files 8738126372Snjlcontained some garbage data caused by an internal buffer overrun. 8739102550Siwasaki 8740102550Siwasaki 8741102550Siwasaki---------------------------------------- 8742102550Siwasaki17 May 2002. Summary of changes for this release. 8743102550Siwasaki 8744102550Siwasaki 8745102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 8746102550Siwasaki 8747102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 8748104470SiwasakiOmniBook where the FADT revision number and the table size are 8749193267Sjkiminconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new 8750126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 8751126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 8752126372Snjlby the revision number. Although this is a BIOS bug, this is a 8753126372Snjlcase where the workaround is simple enough and with no side 8754126372Snjleffects, so it seemed prudent to add it. A warning message is 8755126372Snjlissued, however. 8756102550Siwasaki 8757193267SjkimImplemented minimum size checks for the fixed-length ACPI tables - 8758126372Snjl- the FADT and FACS, as well as consistency checks between the 8759114237Snjlrevision number and the table size. 8760102550Siwasaki 8761114237SnjlFixed a reported problem in the table override support where the 8762114237Snjlnew table pointer was incorrectly treated as a physical address 8763114237Snjlinstead of a logical address. 8764102550Siwasaki 8765114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 8766114237Snjlwith more descriptive codes. 8767102550Siwasaki 8768193267SjkimFixed a problem where an exception would occur if an ASL Field was 8769126372Snjldefined with no named Field Units underneath it (used by some 8770114237Snjlindex fields). 8771102550Siwasaki 8772193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8773126372Snjlbelow. These are the code and data sizes for the acpica.lib 8774126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8775126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8776126372Snjlversion of the code includes the debug output trace mechanism and 8777193267Sjkimhas a larger code and data size. Note that these values will vary 8778126372Snjldepending on the efficiency of the compiler and the compiler 8779126372Snjloptions used during generation. 8780102550Siwasaki 8781102550Siwasaki Previous Release 8782104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 8783104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 8784102550Siwasaki Current Release: 8785104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 8786104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 8787102550Siwasaki 8788102550Siwasaki 8789102550Siwasaki 8790102550Siwasaki2) Linux 8791102550Siwasaki 8792114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 8793114237Snjl(Paul D. and Dominik Brodowski) 8794102550Siwasaki 8795102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 8796102550Siwasaki 8797102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 8798102550Siwasaki 8799102550SiwasakiFix "MHz" typo (Dominik Brodowski) 8800102550Siwasaki 8801102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 8802102550Siwasaki 8803102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 8804102550Siwasaki 8805102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 8806102550Siwasaki 8807102550Siwasaki3) iASL Compiler Version X2044: 8808102550Siwasaki 8809193267SjkimImplemented error checking for the string used in the EISAID macro 8810193267Sjkim(Usually used in the definition of the _HID object.) The code now 8811126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 8812126372Snjluppercase letters and 4 hex digits. 8813102550Siwasaki 8814102550SiwasakiIf a raw string is used in the definition of the _HID object 8815102550Siwasaki(instead of the EISAID macro), the string must contain all 8816114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 8817114237Snjlof the asterisk.) 8818102550Siwasaki 8819114237SnjlImplemented checking for invalid use of ACPI reserved names for 8820114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 8821114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 8822114237SnjlPreviously, this check was only performed for control methods. 8823102550Siwasaki 8824114237SnjlImplemented an additional check on the Name operator to emit an 8825114237Snjlerror if a reserved name that must be implemented in ASL as a 8826114237Snjlcontrol method is used. We know that a reserved name must be a 8827114237Snjlmethod if it is defined with input arguments. 8828102550Siwasaki 8829193267SjkimThe warning emitted when a namespace object reference is not found 8830126372Snjlduring the cross reference phase has been changed into an error. 8831193267SjkimThe "External" directive should be used for names defined in other 8832126372Snjlmodules. 8833102550Siwasaki 8834102550Siwasaki 8835102550Siwasaki4) Tools and Utilities 8836102550Siwasaki 8837114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 8838114237Snjltested. 8839102550Siwasaki 8840193267SjkimFixed a problem with the output of both acpidump and adump16 where 8841126372Snjlthe indentation of closing parentheses and brackets was not 8842167802Sjkim 8843114237Snjlaligned properly with the parent block. 8844102550Siwasaki 8845102550Siwasaki 8846102550Siwasaki---------------------------------------- 8847102550Siwasaki03 May 2002. Summary of changes for this release. 8848102550Siwasaki 8849102550Siwasaki 8850102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 8851102550Siwasaki 8852114237SnjlAdded support a new OSL interface that allows the host operating 8853167802Sjkim 8854114237Snjlsystem software to override the DSDT found in the firmware - 8855193267SjkimAcpiOsTableOverride. With this interface, the OSL can examine the 8856126372Snjlversion of the firmware DSDT and replace it with a different one 8857126372Snjlif desired. 8858102550Siwasaki 8859114237SnjlAdded new external interfaces for accessing ACPI registers from 8860114237Snjldevice drivers and other system software - AcpiGetRegister and 8861114237SnjlAcpiSetRegister. This was simply an externalization of the 8862114237Snjlexisting AcpiHwBitRegister interfaces. 8863102550Siwasaki 8864104470SiwasakiFixed a regression introduced in the previous build where the 8865104470SiwasakiASL/AML CreateField operator always returned an error, 8866102550Siwasaki"destination must be a NS Node". 8867102550Siwasaki 8868114237SnjlExtended the maximum time (before failure) to successfully enable 8869114237SnjlACPI mode to 3 seconds. 8870102550Siwasaki 8871193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8872126372Snjlbelow. These are the code and data sizes for the acpica.lib 8873126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8874126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8875126372Snjlversion of the code includes the debug output trace mechanism and 8876193267Sjkimhas a larger code and data size. Note that these values will vary 8877126372Snjldepending on the efficiency of the compiler and the compiler 8878126372Snjloptions used during generation. 8879102550Siwasaki 8880102550Siwasaki Previous Release 8881104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8882104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8883102550Siwasaki Current Release: 8884104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 8885104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 8886102550Siwasaki 8887102550Siwasaki 8888102550Siwasaki2) Linux 8889102550Siwasaki 8890104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 8891193267Sjkimfree. While 3 out of 4 of our in-house systems work fine, the last 8892126372Snjlone still hangs when testing the LAPIC timer. 8893102550Siwasaki 8894114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 8895114237Snjlname. 8896102550Siwasaki 8897102550SiwasakiAdded warning on boot for Presario 711FR. 8898102550Siwasaki 8899102550SiwasakiSleep improvements (Pavel Machek) 8900102550Siwasaki 8901102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 8902102550Siwasaki 8903102550SiwasakiIA64: Fixed memory map functions (JI Lee) 8904102550Siwasaki 8905102550Siwasaki 8906102550Siwasaki3) iASL Compiler Version X2043: 8907102550Siwasaki 8908114237SnjlAdded support to allow the compiler to be integrated into the MS 8909114237SnjlVC++ development environment for one-button compilation of single 8910114237Snjlfiles or entire projects -- with error-to-source-line mapping. 8911102550Siwasaki 8912104470SiwasakiImplemented support for compile-time constant folding for the 8913104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 8914104470Siwasakispecification. This allows the ASL writer to use expressions 8915104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 8916114237Snjlevaluate to constants at compile time and will also simplify the 8917114237Snjlemitted AML in any such sub-expressions that can be folded 8918104470Siwasaki(evaluated at compile-time.) This increases the size of the 8919104470Siwasakicompiler significantly because a portion of the ACPI CA AML 8920104470Siwasakiinterpreter is included within the compiler in order to pre- 8921104470Siwasakievaluate constant expressions. 8922102550Siwasaki 8923114237Snjl 8924102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 8925114237Snjlcompiler to fault. (This macro is used in conjunction with the 8926114237Snjl_STR reserved name.) 8927102550Siwasaki 8928114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 8929114237SnjlOnes opcodes where possible to further reduce the size of integer 8930114237Snjlconstants and thus reduce the overall size of the generated AML 8931114237Snjlcode. 8932102550Siwasaki 8933193267SjkimImplemented error checking for new reserved terms for ACPI version 8934126372Snjl2.0A. 8935102550Siwasaki 8936104470SiwasakiImplemented the -qr option to display the current list of ACPI 8937104470Siwasakireserved names known to the compiler. 8938102550Siwasaki 8939104470SiwasakiImplemented the -qc option to display the current list of ASL 8940104470Siwasakioperators that are allowed within constant expressions and can 8941193267Sjkimtherefore be folded at compile time if the operands are constants. 8942102550Siwasaki 8943102550Siwasaki 8944102550Siwasaki4) Documentation 8945102550Siwasaki 8946193267SjkimUpdated the Programmer's Reference for new interfaces, data types, 8947126372Snjland memory allocation model options. 8948102550Siwasaki 8949114237SnjlUpdated the iASL Compiler User Reference to apply new format and 8950114237Snjladd information about new features and options. 8951102550Siwasaki 8952102550Siwasaki---------------------------------------- 8953102550Siwasaki19 April 2002. Summary of changes for this release. 8954102550Siwasaki 8955102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 8956102550Siwasaki 8957114237SnjlThe source code base for the Core Subsystem has been completely 8958114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 8959114237Snjlversions. The Lint option files used are included in the 8960114237Snjl/acpi/generate/lint directory. 8961102550Siwasaki 8962102550SiwasakiImplemented enhanced status/error checking across the entire 8963114237SnjlHardware manager subsystem. Any hardware errors (reported from 8964114237Snjlthe OSL) are now bubbled up and will abort a running control 8965114237Snjlmethod. 8966102550Siwasaki 8967167802Sjkim 8968114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 8969114237Snjlwas stored only with control method nodes, causing a fault when 8970114237Snjlnon-control method code was executed during table loading. The 8971114237Snjlsolution implemented uses a global variable to indicate table 8972114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 8973114237Snjlnot support mixed integer widths across different ACPI tables 8974114237Snjl(DSDT, SSDT). 8975102550Siwasaki 8976114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 8977114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 8978114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 8979114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 8980193267SjkimACPI 2.0 X field is zero (even though the table revision indicates 8981193267Sjkima full ACPI 2.0 table.) The ACPI specification will be updated to 8982126372Snjlclarify this issue. 8983102550Siwasaki 8984104470SiwasakiFixed a problem with the SystemMemory operation region handler 8985104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 8986104470Siwasakispecified access width was larger than a byte. This caused 8987104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 8988193267Sjkimaccessed with the width specified. On systems that do not support 8989193267Sjkimnon-aligned transfers, a check is made to guarantee proper address 8990126372Snjlalignment before proceeding in order to avoid an AML-caused 8991126372Snjlalignment fault within the kernel. 8992102550Siwasaki 8993102550Siwasaki 8994114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 8995114237Snjlof the 4-byte Irq field was extracted. 8996102550Siwasaki 8997114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 8998114237Snjlfunction was out of date and required a rewrite. 8999114237Snjl 9000193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9001126372Snjlbelow. These are the code and data sizes for the acpica.lib 9002126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9003126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 9004126372Snjlversion of the code includes the debug output trace mechanism and 9005193267Sjkimhas a larger code and data size. Note that these values will vary 9006126372Snjldepending on the efficiency of the compiler and the compiler 9007126372Snjloptions used during generation. 9008102550Siwasaki 9009102550Siwasaki Previous Release 9010104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 9011104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 9012102550Siwasaki Current Release: 9013104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 9014104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 9015102550Siwasaki 9016102550Siwasaki 9017102550Siwasaki2) Linux 9018102550Siwasaki 9019102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 9020102550Siwasaki 9021102550Siwasaki 9022102550Siwasaki3) iASL Compiler Version X2042: 9023102550Siwasaki 9024104470SiwasakiImplemented an additional compile-time error check for a field 9025104470Siwasakiunit whose size + minimum access width would cause a run-time 9026114237Snjlaccess beyond the end-of-region. Previously, only the field size 9027114237Snjlitself was checked. 9028102550Siwasaki 9029104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 9030104470Siwasakiobject in preparation for compile-time evaluation of the type 9031104470Siwasaki3/4/5 ASL operators. 9032102550Siwasaki 9033102550Siwasaki 9034102550Siwasaki---------------------------------------- 9035102550SiwasakiSummary of changes for this release: 03_29_02 9036102550Siwasaki 9037102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 9038102550Siwasaki 9039104470SiwasakiImplemented support for late evaluation of TermArg operands to 9040193267SjkimBuffer and Package objects. This allows complex expressions to be 9041126372Snjlused in the declarations of these object types. 9042102550Siwasaki 9043193267SjkimFixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI 9044126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 9045126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 9046193267Sjkimthe field is returned as a buffer only if the field is larger than 9047126372Snjl64 bits. The TableRevision is now considered when making this 9048126372Snjlconversion to avoid incompatibility with existing ASL code. 9049102550Siwasaki 9050104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 9051114237Snjlallows an RSDP with either a logical or physical address. With 9052114237Snjlthis support, the host OS can now override all ACPI tables with 9053114237Snjlone logical RSDP. Includes implementation of "typed" pointer 9054114237Snjlsupport to allow a common data type for both physical and logical 9055114237Snjlpointers internally. This required a change to the 9056114237SnjlAcpiOsGetRootPointer interface. 9057102550Siwasaki 9058193267SjkimImplemented the use of ACPI 2.0 Generic Address Structures for all 9059193267SjkimGPE, Fixed Event, and PM Timer I/O. This allows the use of memory 9060126372Snjlmapped I/O for these ACPI features. 9061102550Siwasaki 9062102550SiwasakiInitialization now ignores not only non-required tables (All 9063114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 9064114237Snjlnot validate the table headers of unrecognized tables. 9065102550Siwasaki 9066102550SiwasakiFixed a problem where a notify handler could only be 9067102550Siwasakiinstalled/removed on an object of type Device. All "notify" 9068167802Sjkim 9069102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 9070102550SiwasakiThermal. 9071102550Siwasaki 9072114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 9073193267Sjkimcritical information is returned when this debug level is enabled. 9074102550Siwasaki 9075193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9076126372Snjlbelow. These are the code and data sizes for the acpica.lib 9077126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9078126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 9079126372Snjlversion of the code includes the debug output trace mechanism and 9080193267Sjkimhas a larger code and data size. Note that these values will vary 9081126372Snjldepending on the efficiency of the compiler and the compiler 9082126372Snjloptions used during generation. 9083102550Siwasaki 9084102550Siwasaki Previous Release 9085104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 9086104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 9087102550Siwasaki Current Release: 9088104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 9089104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 9090102550Siwasaki 9091102550Siwasaki 9092102550Siwasaki2) Linux: 9093102550Siwasaki 9094114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 9095114237Snjl2.0-based processor performance control (e.g. Intel(R) 9096114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 9097114237Snjlthe Intel "applet" interface are not supported through this. The 9098114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 9099114237Snjl[Note that basic policy for controlling performance state 9100114237Snjltransitions will be included in the next version of ospmd.] The 9101114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 9102114237Snjlerrata handling underwent a complete overhaul (big thanks to 9103114237SnjlDominik Brodowski). 9104102550Siwasaki 9105114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 9106114237Snjlbased devices in the ACPI namespace are now dynamically bound 9107114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 9108114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 9109114237Snjlsubordinate PCI bridges. 9110102550Siwasaki 9111104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 9112104470Siwasakientries defined underneath PCI bridges. 9113102550Siwasaki 9114104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 9115104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 9116102550Siwasaki 9117114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 9118114237Snjl(acpi.c, mpparse.c) -- stay tuned. 9119102550Siwasaki 9120102550SiwasakiAdded back visual differentiation between fixed-feature and 9121114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 9122114237Snjlbutton/power/PWRF) to simplify button identification. 9123102550Siwasaki 9124114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 9125114237Snjlany "_THIS_MODULE defined but not used" messages. 9126102550Siwasaki 9127102550SiwasakiCan now shut down the system using "magic sysrq" key. 9128102550Siwasaki 9129102550Siwasaki 9130102550Siwasaki3) iASL Compiler version 2041: 9131102550Siwasaki 9132104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 9133104470Siwasakiconstants were not reported. 9134102550Siwasaki 9135193267SjkimImplemented a fix for the General Register template Address field. 9136126372SnjlThis field was 8 bits when it should be 64. 9137102550Siwasaki 9138193267SjkimFixed a problem where errors/warnings were no longer being emitted 9139126372Snjlwithin the listing output file. 9140102550Siwasaki 9141114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 9142114237Snjlexactly 4 characters, alphanumeric only. 9143102550Siwasaki 9144102550Siwasaki 9145102550Siwasaki 9146102550Siwasaki 9147102550Siwasaki---------------------------------------- 9148102550SiwasakiSummary of changes for this release: 03_08_02 9149102550Siwasaki 9150102550Siwasaki 9151102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 9152102550Siwasaki 9153114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 9154193267Sjkimkeyword could cause an interpreter error due to attempting to read 9155126372Snjlor write beyond the end of the parent Operation Region. 9156102550Siwasaki 9157193267SjkimFixed a problem in the SystemMemory Operation Region handler where 9158126372Snjlan attempt was made to map memory beyond the end of the region. 9159126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 9160126372Snjlerrors on some Linux systems. 9161102550Siwasaki 9162114237SnjlFixed a problem where the interpreter/namespace "search to root" 9163114237Snjlalgorithm was not functioning for some object types. Relaxed the 9164114237Snjlinternal restriction on the search to allow upsearches for all 9165114237Snjlexternal object types as well as most internal types. 9166102550Siwasaki 9167102550Siwasaki 9168102550Siwasaki2) Linux: 9169102550Siwasaki 9170193267SjkimWe now use safe_halt() macro versus individual calls to sti | hlt. 9171102550Siwasaki 9172193267SjkimWriting to the processor limit interface should now work. "echo 1" 9173126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 9174167802Sjkim 9175126372Snjldefault. 9176102550Siwasaki 9177102550Siwasaki 9178102550Siwasaki3) ASL compiler: 9179102550Siwasaki 9180102550SiwasakiFixed segfault on Linux version. 9181102550Siwasaki 9182102550Siwasaki 9183102550Siwasaki---------------------------------------- 9184102550SiwasakiSummary of changes for this release: 02_25_02 9185102550Siwasaki 9186102550Siwasaki1) ACPI CA Core Subsystem: 9187102550Siwasaki 9188102550Siwasaki 9189102550SiwasakiFixed a problem where the GPE bit masks were not initialized 9190102550Siwasakiproperly, causing erratic GPE behavior. 9191102550Siwasaki 9192193267SjkimImplemented limited support for multiple calling conventions. The 9193126372Snjlcode can be generated with either the VPL (variable parameter 9194114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 9195114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 9196114237Snjlwhen generated with FPL. 9197102550Siwasaki 9198102550Siwasaki 9199102550Siwasaki2) Linux 9200102550Siwasaki 9201114237SnjlRe-add some /proc/acpi/event functionality that was lost during 9202114237Snjlthe rewrite 9203102550Siwasaki 9204193267SjkimResolved issue with /proc events for fixed-feature buttons showing 9205126372Snjlup as the system device. 9206102550Siwasaki 9207193267SjkimFixed checks on C2/C3 latencies to be inclusive of maximum values. 9208102550Siwasaki 9209114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 9210102550Siwasaki 9211114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 9212102550Siwasaki 9213104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 9214104470Siwasakihysterisis. 9215102550Siwasaki 9216102550SiwasakiRestructured PRT support. 9217102550Siwasaki 9218102550Siwasaki 9219102550Siwasaki---------------------------------------- 9220102550SiwasakiSummary of changes for this label: 02_14_02 9221102550Siwasaki 9222102550Siwasaki 9223102550Siwasaki1) ACPI CA Core Subsystem: 9224102550Siwasaki 9225114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 9226114237SnjlFADT tables. 9227102550Siwasaki 9228114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 9229193267Sjkimbeen removed. All 64-bit platforms should be migrated to the ACPI 9230193267Sjkim2.0 tables. The actbl71.h header has been removed from the source 9231126372Snjltree. 9232102550Siwasaki 9233114237SnjlAll C macros defined within the subsystem have been prefixed with 9234114237Snjl"ACPI_" to avoid collision with other system include files. 9235102550Siwasaki 9236193267SjkimRemoved the return value for the two AcpiOsPrint interfaces, since 9237126372Snjlit is never used and causes lint warnings for ignoring the return 9238126372Snjlvalue. 9239102550Siwasaki 9240104470SiwasakiAdded error checking to all internal mutex acquire and release 9241104470Siwasakicalls. Although a failure from one of these interfaces is 9242104470Siwasakiprobably a fatal system error, these checks will cause the 9243114237Snjlimmediate abort of the currently executing method or interface. 9244102550Siwasaki 9245114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 9246193267Sjkimfault. This was a side effect of the deployment of the new memory 9247126372Snjlallocation model. 9248102550Siwasaki 9249193267SjkimFixed a couple of problems with the Global Lock support introduced 9250193267Sjkimin the last major build. The "common" (1.0/2.0) internal FACS was 9251126372Snjlbeing overwritten with the FACS signature and clobbering the 9252126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 9253126372Snjlunmapped after construction of the "common" FACS, preventing 9254126372Snjlaccess to the actual Global Lock field within it. The "common" 9255126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 9256126372Snjlis used simply as a global. 9257102550Siwasaki 9258193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9259126372Snjlbelow. These are the code and data sizes for the acpica.lib 9260126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9261126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 9262126372Snjlversion of the code includes the debug output trace mechanism and 9263193267Sjkimhas a larger code and data size. Note that these values will vary 9264126372Snjldepending on the efficiency of the compiler and the compiler 9265126372Snjloptions used during generation. 9266102550Siwasaki 9267102550Siwasaki Previous Release (02_07_01) 9268104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 9269104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 9270102550Siwasaki Current Release: 9271104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 9272104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 9273102550Siwasaki 9274102550Siwasaki 9275102550Siwasaki2) Linux 9276102550Siwasaki 9277102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 9278102550Siwasakichanges described above. 9279102550Siwasaki 9280114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 9281114237Snjlproper poll functionality. 9282102550Siwasaki 9283102550SiwasakiFixed and restructured power management (acpi_bus). 9284102550Siwasaki 9285193267SjkimOnly create /proc "view by type" when devices of that class exist. 9286102550Siwasaki 9287104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 9288102550Siwasaki 9289102550SiwasakiImproved thermal zone code. 9290102550Siwasaki 9291102550Siwasaki 9292102550Siwasaki3) ASL Compiler, version X2039: 9293102550Siwasaki 9294114237Snjl 9295114237SnjlImplemented the new compiler restriction on ASL String hex/octal 9296193267Sjkimescapes to non-null, ASCII values. An error results if an invalid 9297126372Snjlvalue is used. (This will require an ACPI 2.0 specification 9298126372Snjlchange.) 9299102550Siwasaki 9300193267SjkimAML object labels that are output to the optional C and ASM source 9301126372Snjlare now prefixed with both the ACPI table signature and table ID 9302126372Snjlto help guarantee uniqueness within a large BIOS project. 9303102550Siwasaki 9304102550Siwasaki 9305102550Siwasaki---------------------------------------- 9306102550SiwasakiSummary of changes for this label: 02_01_02 9307102550Siwasaki 9308102550Siwasaki1) ACPI CA Core Subsystem: 9309102550Siwasaki 9310114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 9311114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 9312114237Snjlother changes for ACPI 2.0 support are complete. With 9313193267Sjkimsimultaneous code and data optimizations throughout the subsystem, 9314126372SnjlACPI 2.0 support has been implemented with almost no additional 9315126372Snjlcost in terms of code and data size. 9316102550Siwasaki 9317114237SnjlImplemented a new mechanism for allocation of return buffers. If 9318114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 9319114237Snjlbe allocated on behalf of the caller. Consolidated all return 9320114237Snjlbuffer validation and allocation to a common procedure. Return 9321193267Sjkimbuffers will be allocated via the primary OSL allocation interface 9322193267Sjkimsince it appears that a separate pool is not needed by most users. 9323126372SnjlIf a separate pool is required for these buffers, the caller can 9324126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 9325102550Siwasaki 9326102550SiwasakiImplemented support for string operands within the DerefOf 9327102550Siwasakioperator. 9328102550Siwasaki 9329114237SnjlRestructured the Hardware and Event managers to be table driven, 9330114237Snjlsimplifying the source code and reducing the amount of generated 9331114237Snjlcode. 9332102550Siwasaki 9333102550SiwasakiSplit the common read/write low-level ACPI register bitfield 9334104470Siwasakiprocedure into a separate read and write, simplifying the code 9335104470Siwasakiconsiderably. 9336102550Siwasaki 9337114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 9338114237Snjlused only a handful of times and didn't have enough critical mass 9339193267Sjkimfor a separate interface. Replaced with a common calloc procedure 9340126372Snjlin the core. 9341102550Siwasaki 9342104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 9343104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 9344114237SnjlReorganized the GPE information and shrunk a large array that was 9345114237Snjloriginally large enough to hold info for all possible GPEs (256) 9346114237Snjlto simply large enough to hold all GPEs up to the largest GPE 9347114237Snjlnumber on the machine. 9348102550Siwasaki 9349114237SnjlFixed a reported problem with resource structure alignment on 64- 9350114237Snjlbit platforms. 9351102550Siwasaki 9352102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 9353102550Siwasakiinterfaces to not require any flags for the common case of 9354102550Siwasakienabling/disabling a GPE. 9355102550Siwasaki 9356104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 9357102550Siwasaki 9358114237SnjlMost TBDs in comments within the source code have been resolved 9359114237Snjland eliminated. 9360102550Siwasaki 9361167802Sjkim 9362102550SiwasakiFixed a problem in the interpreter where a standalone parent 9363102550Siwasakiprefix (^) was not handled correctly in the interpreter and 9364102550Siwasakidebugger. 9365102550Siwasaki 9366102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 9367102550Siwasaki 9368193267SjkimImplemented Field support in the ASL Load operator. This allows a 9369126372Snjltable to be loaded from a named field, in addition to loading a 9370114237Snjltable directly from an Operation Region. 9371102550Siwasaki 9372193267SjkimImplemented timeout and handle support in the external Global Lock 9373126372Snjlinterfaces. 9374102550Siwasaki 9375114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 9376193267Sjkimlonger being generated correctly during the dump of named objects. 9377102550Siwasaki 9378102550SiwasakiModified the AML debugger to give a full display of if/while 9379102550Siwasakipredicates instead of just one AML opcode at a time. (The 9380193267Sjkimpredicate can have several nested ASL statements.) The old method 9381126372Snjlwas confusing during single stepping. 9382102550Siwasaki 9383193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9384126372Snjlbelow. These are the code and data sizes for the acpica.lib 9385114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9386114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 9387114237Snjlversion of the code includes the debug output trace mechanism and 9388193267Sjkimhas a larger code and data size. Note that these values will vary 9389126372Snjldepending on the efficiency of the compiler and the compiler 9390114237Snjloptions used during generation. 9391102550Siwasaki 9392102550Siwasaki Previous Release (12_18_01) 9393114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 9394114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 9395102550Siwasaki Current Release: 9396114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 9397114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 9398102550Siwasaki 9399102550Siwasaki2) Linux 9400102550Siwasaki 9401104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 9402104470Siwasakidriver) 9403102550Siwasaki 9404102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 9405102550Siwasaki 9406102550SiwasakiNew thermal policy (Thermal driver) 9407102550Siwasaki 9408102550SiwasakiMany updates to /proc 9409102550Siwasaki 9410102550SiwasakiBattery "low" event support (Battery driver) 9411102550Siwasaki 9412104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 9413102550Siwasaki 9414104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 9415102550Siwasaki 9416102550SiwasakiMenuconfig options redesigned 9417102550Siwasaki 9418102550Siwasaki3) ASL Compiler, version X2037: 9419102550Siwasaki 9420193267SjkimImplemented several new output features to simplify integration of 9421126372SnjlAML code into firmware: 1) Output the AML in C source code with 9422193267Sjkimlabels for each named ASL object. The original ASL source code 9423193267Sjkimis interleaved as C comments. 2) Output the AML in ASM source code 9424126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 9425126372Snjlraw hex table form, in either C or ASM. 9426102550Siwasaki 9427102550SiwasakiImplemented support for optional string parameters to the 9428102550SiwasakiLoadTable operator. 9429102550Siwasaki 9430104470SiwasakiCompleted support for embedded escape sequences within string 9431114237Snjlliterals. The compiler now supports all single character escapes 9432114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 9433114237Snjlnull byte into a string literal (via the hex/octal escape) causes 9434114237Snjlthe string to be immediately terminated. A warning is issued. 9435102550Siwasaki 9436104470SiwasakiFixed a problem where incorrect AML was generated for the case 9437104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 9438102550Siwasaki 9439102550Siwasaki) with no trailing name segments. 9440102550Siwasaki 9441102550SiwasakiThe compiler has been successfully generated with a 64-bit C 9442102550Siwasakicompiler. 9443102550Siwasaki 9444102550Siwasaki 9445102550Siwasaki 9446102550Siwasaki 9447102550Siwasaki---------------------------------------- 9448102550SiwasakiSummary of changes for this label: 12_18_01 9449102550Siwasaki 9450102550Siwasaki1) Linux 9451102550Siwasaki 9452114237SnjlEnhanced blacklist with reason and severity fields. Any table's 9453114237Snjlsignature may now be used to identify a blacklisted system. 9454102550Siwasaki 9455114237SnjlCall _PIC control method to inform the firmware which interrupt 9456114237Snjlmodel the OS is using. Turn on any disabled link devices. 9457102550Siwasaki 9458102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 9459102550Siwasaki 9460102550Siwasaki 2) ACPI CA Core Subsystem: 9461102550Siwasaki 9462193267SjkimImplemented ACPI 2.0 semantics for the "Break" operator (Exit from 9463126372Snjlwhile loop) 9464102550Siwasaki 9465102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 9466102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 9467193267Sjkimoperators. All new ACPI 2.0 operators are now implemented in both 9468193267Sjkimthe ASL compiler and the AML interpreter. The only remaining ACPI 9469126372Snjl2.0 task is support for the String data type in the DerefOf 9470193267Sjkimoperator. Fixed a problem with AcquireMutex where the status code 9471126372Snjlwas lost if the caller had to actually wait for the mutex. 9472102550Siwasaki 9473104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 9474102550Siwasaki 9475193267SjkimCompleted implementation of the external Global Lock interfaces -- 9476126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 9477126372SnjlHandler parameters were added. 9478102550Siwasaki 9479102550SiwasakiCompleted another pass at removing warnings and issues when 9480114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 9481114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 9482114237Snjladd and subtract (diff) macros have changed considerably. 9483102550Siwasaki 9484167802Sjkim 9485114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 9486114237Snjl64-bit platforms, 32-bits on all others. This type is used 9487193267Sjkimwherever memory allocation and/or the C sizeof() operator is used, 9488126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 9489126372Snjland AcpiOsCallocate. 9490102550Siwasaki 9491102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 9492102550Siwasaki 9493193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9494126372Snjlbelow. These are the code and data sizes for the acpica.lib 9495114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9496114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 9497114237Snjlversion of the code includes the debug output trace mechanism and 9498114237Snjlhas a larger code and data size. Note that these values will vary 9499114237Snjldepending on the efficiency of the compiler and the compiler 9500114237Snjloptions used during generation. 9501102550Siwasaki 9502102550Siwasaki Previous Release (12_05_01) 9503114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 9504114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 9505102550Siwasaki Current Release: 9506114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 9507114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 9508102550Siwasaki 9509102550Siwasaki 3) ASL Compiler, version X2034: 9510102550Siwasaki 9511114237SnjlNow checks for (and generates an error if detected) the use of a 9512114237SnjlBreak or Continue statement without an enclosing While statement. 9513102550Siwasaki 9514167802Sjkim 9515102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 9516102550Siwasakicompiler. 9517102550Siwasaki 9518102550Siwasaki ---------------------------------------- 9519102550SiwasakiSummary of changes for this label: 12_05_01 9520102550Siwasaki 9521102550Siwasaki 1) ACPI CA Core Subsystem: 9522102550Siwasaki 9523102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 9524104470Siwasakioperator creates a new copy of an object (and is also used to 9525193267Sjkimbypass the "implicit conversion" mechanism of the Store operator.) 9526102550Siwasaki 9527102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 9528102550Siwasakiimplemented. The change is that performing a SizeOf on a 9529114237Snjlreference object causes an automatic dereference of the object to 9530114237Snjltha actual value before the size is evaluated. This behavior was 9531114237Snjlundefined in ACPI 1.0. 9532102550Siwasaki 9533114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 9534114237Snjlhave been implemented. The interrupt polarity and mode are now 9535114237Snjlindependently set. 9536102550Siwasaki 9537114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 9538114237Snjlappearing in Package objects were not properly converted to 9539114237Snjlintegers when the internal Package was converted to an external 9540114237Snjlobject (via the AcpiEvaluateObject interface.) 9541102550Siwasaki 9542114237SnjlFixed a problem with the namespace object deletion mechanism for 9543114237Snjlobjects created by control methods. There were two parts to this 9544193267Sjkimproblem: 1) Objects created during the initialization phase method 9545193267Sjkimparse were not being deleted, and 2) The object owner ID mechanism 9546126372Snjlto track objects was broken. 9547102550Siwasaki 9548114237SnjlFixed a problem where the use of the ASL Scope operator within a 9549114237Snjlcontrol method would result in an invalid opcode exception. 9550102550Siwasaki 9551114237SnjlFixed a problem introduced in the previous label where the buffer 9552114237Snjllength required for the _PRT structure was not being returned 9553114237Snjlcorrectly. 9554102550Siwasaki 9555193267SjkimCode and Data Size: Current core subsystem library sizes are shown 9556126372Snjlbelow. These are the code and data sizes for the acpica.lib 9557114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 9558114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 9559114237Snjlversion of the code includes the debug output trace mechanism and 9560193267Sjkimhas a larger code and data size. Note that these values will vary 9561126372Snjldepending on the efficiency of the compiler and the compiler 9562114237Snjloptions used during generation. 9563102550Siwasaki 9564102550Siwasaki Previous Release (11_20_01) 9565114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 9566114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 9567102550Siwasaki 9568102550Siwasaki Current Release: 9569114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 9570114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 9571102550Siwasaki 9572102550Siwasaki 2) Linux: 9573102550Siwasaki 9574102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 9575102550Siwasaki 9576104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 9577114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 9578114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 9579114237Snjlentries are treated as if they were static (not yet 9580114237Snjlreconfigurable). Architecture- specific code to use this data is 9581114237Snjlabsent on IA32 but should be available shortly. 9582102550Siwasaki 9583114237SnjlChanged the initialization sequence to start the ACPI interpreter 9584114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 9585114237Snjlin init/main.c. This ordering is required to support PRT and 9586114237Snjlfacilitate other (future) enhancement. A side effect is that the 9587193267SjkimACPI bus driver and certain device drivers can no longer be loaded 9588126372Snjlas modules. 9589102550Siwasaki 9590104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 9591104470SiwasakiRouting support to be included without the ACPI Bus and other 9592104470Siwasakidevice drivers. 9593102550Siwasaki 9594102550Siwasaki 3) ASL Compiler, version X2033: 9595102550Siwasaki 9596102550SiwasakiFixed some issues with the use of the new CopyObject and 9597102550SiwasakiDataTableRegion operators. Both are fully functional. 9598102550Siwasaki 9599102550Siwasaki ---------------------------------------- 9600102550SiwasakiSummary of changes for this label: 11_20_01 9601102550Siwasaki 9602102550Siwasaki 20 November 2001. Summary of changes for this release. 9603102550Siwasaki 9604102550Siwasaki 1) ACPI CA Core Subsystem: 9605102550Siwasaki 9606104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 9607193267SjkimInteger, String, or Buffer to an Index of a Buffer will store only 9608126372Snjlthe least-significant byte of the source to the Indexed buffer 9609126372Snjlbyte. Multiple writes are not performed. 9610102550Siwasaki 9611104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 9612104470Siwasakioperator was not recorded correctly into the field object. 9613102550Siwasaki 9614102550SiwasakiFixed a problem where ASL Event objects were created in a 9615114237Snjlsignalled state. Events are now created in an unsignalled state. 9616102550Siwasaki 9617114237SnjlThe internal object cache is now purged after table loading and 9618114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 9619114237Snjlthe assumption that object use is greatest during the parse phase 9620193267Sjkimof the entire table (versus the run-time use of individual control 9621126372Snjlmethods.) 9622102550Siwasaki 9623102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 9624102550Siwasaki 9625193267SjkimCode and Data Size: Code and Data optimizations have permitted new 9626126372Snjlfeature development with an actual reduction in the library size. 9627126372SnjlCurrent core subsystem library sizes are shown below. These are 9628126372Snjlthe code and data sizes for the acpica.lib produced by the 9629193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9630126372Snjlany ACPI driver or OSPM code. The debug version of the code 9631126372Snjlincludes the debug output trace mechanism and has a larger code 9632126372Snjland data size. Note that these values will vary depending on the 9633126372Snjlefficiency of the compiler and the compiler options used during 9634126372Snjlgeneration. 9635102550Siwasaki 9636102550Siwasaki Previous Release (11_09_01): 9637114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 9638114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 9639102550Siwasaki 9640102550Siwasaki Current Release: 9641114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 9642114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 9643102550Siwasaki 9644102550Siwasaki 2) Linux: 9645102550Siwasaki 9646114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 9647114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 9648114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 9649114237Snjlnear future. This functionality replaces 9650114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 9651114237Snjl2.4.15-preX release. To enable this feature you must add 9652114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 9653193267Sjkimfor CONFIG_ACPI_BOOT for more information. An IA-64 release is in 9654126372Snjlthe works... 9655102550Siwasaki 9656114237SnjlRestructured the configuration options to allow boot-time table 9657114237Snjlparsing support without inclusion of the ACPI Interpreter (and 9658114237Snjlother) code. 9659102550Siwasaki 9660193267SjkimNOTE: This release does not include fixes for the reported events, 9661126372Snjlpower-down, and thermal passive cooling issues (coming soon). 9662102550Siwasaki 9663102550Siwasaki 3) ASL Compiler: 9664102550Siwasaki 9665114237SnjlAdded additional typechecking for Fields within restricted access 9666114237SnjlOperation Regions. All fields within EC and CMOS regions must be 9667114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 9668114237Snjldeclared with the BufferAcc access type. 9669102550Siwasaki 9670114237SnjlFixed a problem where the listing file output of control methods 9671114237Snjlno longer interleaved the actual AML code with the ASL source 9672114237Snjlcode. 9673102550Siwasaki 9674102550Siwasaki 9675102550Siwasaki 9676167802Sjkim 9677102550Siwasaki---------------------------------------- 9678102550SiwasakiSummary of changes for this label: 11_09_01 9679102550Siwasaki 9680102550Siwasaki1) ACPI CA Core Subsystem: 9681102550Siwasaki 9682114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 9683193267SjkimBuffer, String, or Integer source operand that is smaller than the 9684126372Snjltarget field. In these cases, the source operand is zero-extended 9685126372Snjlto fill the target field. 9686102550Siwasaki 9687104470SiwasakiFixed a problem where a Field starting bit offset (within the 9688104470Siwasakiparent operation region) was calculated incorrectly if the 9689167802Sjkim 9690104470Siwasakialignment of the field differed from the access width. This 9691114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 9692114237Snjlpossibly other fields that use the "AccessAny" keyword. 9693102550Siwasaki 9694114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 9695114237Snjlstores through method arguments did not operate correctly. 9696102550Siwasaki 9697102550Siwasaki2) Linux: 9698102550Siwasaki 9699102550SiwasakiImplemented boot-time ACPI table parsing support 9700114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 9701114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 9702114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 9703193267Sjkimprocessors, memory, and interrupts during setup_arch(). Note that 9704126372Snjlthis patch does not include the required architecture-specific 9705126372Snjlchanges required to apply this information -- subsequent patches 9706126372Snjlwill be posted for both IA32 and IA64 to achieve this. 9707102550Siwasaki 9708114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 9709114237SnjlMochel. This allows IA32 systems to transition to/from various 9710114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 9711114237Snjldriver model and power-manageable drivers will prevent its 9712114237Snjl(successful) use on most systems. 9713102550Siwasaki 9714114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 9715193267Sjkimsubmenu, unified IA32 and IA64 options, added new "Boot using ACPI 9716126372Snjltables" option, etc. 9717102550Siwasaki 9718114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 9719114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 9720114237Snjltransactions. 9721102550Siwasaki 9722102550Siwasaki ---------------------------------------- 9723102550SiwasakiSummary of changes for this label: 11_02_01 9724102550Siwasaki 9725102550Siwasaki1) ACPI CA Core Subsystem: 9726102550Siwasaki 9727102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 9728102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 9729102550Siwasakiimplemented. 9730102550Siwasaki 9731114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 9732114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 9733193267SjkimPciConfiguration(), Read/Write Memory(), and Read/Write Port() now 9734126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 9735193267Sjkimthe value parameter for the address space handler interface is now 9736193267Sjkiman ACPI_INTEGER. OSL implementations of these interfaces must now 9737126372Snjlhandle the case where the Width parameter is 64. 9738102550Siwasaki 9739104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 9740104470Siwasakidisassembly for IndexFields was not supported correctly. 9741102550Siwasaki 9742102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 9743104470Siwasakisupported. During field access, a check is performed to ensure 9744114237Snjlthat the value written to an Index or Bank register is not out of 9745114237Snjlthe range of the register. The Index (or Bank) register is 9746114237Snjlwritten before each access to the field data. Future support will 9747114237Snjlinclude allowing individual IndexFields to be wider than the 9748114237SnjlDataRegister width. 9749102550Siwasaki 9750114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 9751114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 9752114237Snjla boundary case that occurred when a DWORD field was written to a 9753114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 9754114237Snjlinterpreter to write one datum too many. 9755102550Siwasaki 9756102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 9757114237Snjlstarting bit address of a field was incorrectly calculated if the 9758114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 9759114237SnjlQwordAcc). 9760102550Siwasaki 9761104470SiwasakiFields: Fixed a problem where forward references to individual 9762193267SjkimFieldUnits (individual Field names within a Field definition) were 9763126372Snjlnot resolved during the AML table load. 9764102550Siwasaki 9765104470SiwasakiFields: Fixed a problem where forward references from a Field 9766104470Siwasakidefinition to the parent Operation Region definition were not 9767104470Siwasakiresolved during the AML table load. 9768104470Siwasaki 9769114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 9770114237Snjlduring AML table load. 9771102550Siwasaki 9772193267SjkimAcpi Interfaces: Fixed a problem where the AcpiGetName() interface 9773126372Snjlreturned an incorrect name for the root node. 9774102550Siwasaki 9775193267SjkimCode and Data Size: Code and Data optimizations have permitted new 9776126372Snjlfeature development with an actual reduction in the library size. 9777126372SnjlCurrent core subsystem library sizes are shown below. These are 9778126372Snjlthe code and data sizes for the acpica.lib produced by the 9779193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9780126372Snjlany ACPI driver or OSPM code. The debug version of the code 9781126372Snjlincludes the debug output trace mechanism and has a larger code 9782126372Snjland data size. Note that these values will vary depending on the 9783126372Snjlefficiency of the compiler and the compiler options used during 9784126372Snjlgeneration. 9785102550Siwasaki 9786102550Siwasaki Previous Release (10_18_01): 9787114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 9788114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 9789102550Siwasaki 9790102550Siwasaki Current Release: 9791114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 9792114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 9793102550Siwasaki 9794102550Siwasaki 2) Linux: 9795102550Siwasaki 9796102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 9797102550SiwasakiMODULE_LICENSE("GPL") to all modules. 9798102550Siwasaki 9799102550Siwasaki 3) ASL Compiler version X2030: 9800102550Siwasaki 9801104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 9802104470Siwasakiflagged as errors. 9803102550Siwasaki 9804102550Siwasaki 4) Documentation: 9805102550Siwasaki 9806104470SiwasakiProgrammer Reference updated to reflect OSL and address space 9807104470Siwasakihandler interface changes described above. 9808102550Siwasaki 9809102550Siwasaki---------------------------------------- 9810102550SiwasakiSummary of changes for this label: 10_18_01 9811102550Siwasaki 9812102550SiwasakiACPI CA Core Subsystem: 9813102550Siwasaki 9814193267SjkimFixed a problem with the internal object reference count mechanism 9815126372Snjlthat occasionally caused premature object deletion. This resolves 9816126372Snjlall of the outstanding problem reports where an object is deleted 9817193267Sjkimin the middle of an interpreter evaluation. Although this problem 9818126372Snjlonly showed up in rather obscure cases, the solution to the 9819126372Snjlproblem involved an adjustment of all reference counts involving 9820126372Snjlobjects attached to namespace nodes. 9821102550Siwasaki 9822102550SiwasakiFixed a problem with Field support in the interpreter where 9823114237Snjlwriting to an aligned field whose length is an exact multiple (2 9824193267Sjkimor greater) of the field access granularity would cause an attempt 9825126372Snjlto write beyond the end of the field. 9826102550Siwasaki 9827102550SiwasakiThe top level AML opcode execution functions within the 9828102550Siwasakiinterpreter have been renamed with a more meaningful and 9829102550Siwasakiconsistent naming convention. The modules exmonad.c and 9830102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 9831102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 9832102550Siwasaki 9833114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 9834102550Siwasaki 9835114237SnjlFixed a problem where the AML debugger was causing some internal 9836114237Snjlobjects to not be deleted during subsystem termination. 9837102550Siwasaki 9838104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 9839104470Siwasakiwhere the subsystem would fault if the named object to be 9840104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 9841102550Siwasaki 9842102550SiwasakiFixed a problem with IndexFields and BankFields where the 9843114237Snjlsubsystem would fault if the index, data, or bank registers were 9844114237Snjlnot defined in the same scope as the field itself. 9845102550Siwasaki 9846104470SiwasakiAdded printf format string checking for compilers that support 9847104470Siwasakithis feature. Corrected more than 50 instances of issues with 9848104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 9849104470Siwasakithroughout the core subsystem code. 9850102550Siwasaki 9851104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 9852193267Sjkimimplemented in the core - the value "2" since the ACPI 2.0 support 9853126372Snjlis more than 50% implemented. 9854102550Siwasaki 9855114237SnjlEnhanced the output of the AML debugger "dump namespace" command 9856114237Snjlto output in a more human-readable form. 9857102550Siwasaki 9858114237SnjlCurrent core subsystem library code sizes are shown below. These 9859167802Sjkim 9860114237Snjlare the code and data sizes for the acpica.lib produced by the 9861193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9862126372Snjlany ACPI driver or OSPM code. The debug version of the code 9863126372Snjlincludes the full debug trace mechanism -- leading to a much 9864167802Sjkim 9865114237Snjllarger code and data size. Note that these values will vary 9866114237Snjldepending on the efficiency of the compiler and the compiler 9867114237Snjloptions used during generation. 9868102550Siwasaki 9869102550Siwasaki Previous Label (09_20_01): 9870114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 9871114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 9872102550Siwasaki 9873102550Siwasaki This Label: 9874102550Siwasaki 9875114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 9876114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 9877114237Snjl 9878102550SiwasakiLinux: 9879102550Siwasaki 9880104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 9881104470Siwasakiknown ASL/AML problems. 9882102550Siwasaki 9883193267SjkimEnhanced the /proc interface for the thermal zone driver and added 9884126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 9885193267Sjkimfile now includes threshold/policy information, and allows setting 9886126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 9887193267Sjkimto the 'info' file. Examples: "echo tzp=5 > info" sets the polling 9888126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 9889126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 9890102550Siwasaki 9891104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 9892104470Siwasakiwhen loading the control method battery driver. 9893102550Siwasaki 9894102550Siwasaki ---------------------------------------- 9895102550SiwasakiSummary of changes for this label: 09_20_01 9896102550Siwasaki 9897102550Siwasaki ACPI CA Core Subsystem: 9898102550Siwasaki 9899104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 9900104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 9901114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 9902114237Snjlsleeps.) 9903102550Siwasaki 9904104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 9905104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 9906104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 9907104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 9908102550Siwasaki 9909114237SnjlA local double-precision divide/modulo module has been added to 9910114237Snjlenhance portability to OS kernels where a 64-bit math library is 9911114237Snjlnot available. The new module is "utmath.c". 9912102550Siwasaki 9913104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 9914114237Snjlstack. Originally over 2K, the maximum stack usage is now below 9915114237Snjl2K at 1860 bytes (1.82k) 9916102550Siwasaki 9917114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 9918193267Sjkimroot table pointer was not mapped into a logical address properly. 9919102550Siwasaki 9920193267SjkimFixed a problem where a NULL pointer was being dereferenced in the 9921126372Snjlinterpreter code for the ASL Notify operator. 9922102550Siwasaki 9923102550SiwasakiFixed a problem where the use of the ASL Revision operator 9924114237Snjlreturned an error. This operator now returns the current version 9925114237Snjlof the ACPI CA core subsystem. 9926102550Siwasaki 9927114237SnjlFixed a problem where objects passed as control method parameters 9928114237Snjlto AcpiEvaluateObject were always deleted at method termination. 9929114237SnjlHowever, these objects may end up being stored into the namespace 9930114237Snjlby the called method. The object reference count mechanism was 9931114237Snjlapplied to these objects instead of a force delete. 9932102550Siwasaki 9933114237SnjlFixed a problem where static strings or buffers (contained in the 9934114237SnjlAML code) that are declared as package elements within the ASL 9935114237Snjlcode could cause a fault because the interpreter would attempt to 9936114237Snjldelete them. These objects are now marked with the "static 9937114237Snjlobject" flag to prevent any attempt to delete them. 9938102550Siwasaki 9939114237SnjlImplemented an interpreter optimization to use operands directly 9940114237Snjlfrom the state object instead of extracting the operands to local 9941114237Snjlvariables. This reduces stack use and code size, and improves 9942114237Snjlperformance. 9943102550Siwasaki 9944193267SjkimThe module exxface.c was eliminated as it was an unnecessary extra 9945126372Snjllayer of code. 9946102550Siwasaki 9947114237SnjlCurrent core subsystem library code sizes are shown below. These 9948114237Snjlare the code and data sizes for the acpica.lib produced by the 9949193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9950126372Snjlany ACPI driver or OSPM code. The debug version of the code 9951126372Snjlincludes the full debug trace mechanism -- leading to a much 9952114237Snjllarger code and data size. Note that these values will vary 9953114237Snjldepending on the efficiency of the compiler and the compiler 9954114237Snjloptions used during generation. 9955102550Siwasaki 9956102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 9957114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 9958114237SnjlTotal (Previously 195K) 9959102550Siwasaki 9960102550SiwasakiLinux: 9961102550Siwasaki 9962114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 9963114237SnjlInteger objects are now 64 bits wide 9964102550Siwasaki 9965114237SnjlAll Acpi data types and structures are now in lower case. Only 9966114237SnjlAcpi macros are upper case for differentiation. 9967102550Siwasaki 9968102550Siwasaki Documentation: 9969102550Siwasaki 9970102550SiwasakiChanges to the external interfaces as described above. 9971102550Siwasaki 9972102550Siwasaki ---------------------------------------- 9973102550SiwasakiSummary of changes for this label: 08_31_01 9974102550Siwasaki 9975102550Siwasaki ACPI CA Core Subsystem: 9976102550Siwasaki 9977114237SnjlA bug with interpreter implementation of the ASL Divide operator 9978114237Snjlwas found and fixed. The implicit function return value (not the 9979114237Snjlexplicit store operands) was returning the remainder instead of 9980114237Snjlthe quotient. This was a longstanding bug and it fixes several 9981114237Snjlknown outstanding issues on various platforms. 9982102550Siwasaki 9983104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 9984193267Sjkimbeen further optimized for size. There are 700 invocations of the 9985126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 9986126372Snjlthe debug version of the subsystem significantly. 9987102550Siwasaki 9988114237SnjlA stack trace mechanism has been implemented. The maximum stack 9989193267Sjkimusage is about 2K on 32-bit platforms. The debugger command "stat 9990126372Snjlstack" will display the current maximum stack usage. 9991102550Siwasaki 9992114237SnjlAll public symbols and global variables within the subsystem are 9993114237Snjlnow prefixed with the string "Acpi". This keeps all of the 9994114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 9995114237Snjlwith other kernel subsystems. 9996102550Siwasaki 9997114237SnjlMost of the internal fixed lookup tables have been moved into the 9998114237Snjlcode segment via the const operator. 9999102550Siwasaki 10000104470SiwasakiSeveral enhancements have been made to the interpreter to both 10001104470Siwasakireduce the code size and improve performance. 10002102550Siwasaki 10003114237SnjlCurrent core subsystem library code sizes are shown below. These 10004114237Snjlare the code and data sizes for the acpica.lib produced by the 10005193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 10006126372Snjlany ACPI driver or OSPM code. The debug version of the code 10007126372Snjlincludes the full debug trace mechanism which contains over 700 10008126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 10009126372Snjlinvocations, and over 900 function exit macro invocations -- 10010126372Snjlleading to a much larger code and data size. Note that these 10011114237Snjlvalues will vary depending on the efficiency of the compiler and 10012114237Snjlthe compiler options used during generation. 10013102550Siwasaki 10014102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 10015102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 10016102550Siwasaki 10017102550Siwasaki Linux: 10018102550Siwasaki 10019104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 10020102550Siwasaki 10021102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 10022102550Siwasaki 10023102550Siwasaki ASL Compiler, version X2026: 10024102550Siwasaki 10025104470SiwasakiFixed a problem introduced in the previous label where the AML 10026167802Sjkim 10027104470Siwasakicode emitted for package objects produced packages with zero 10028104470Siwasakilength. 10029102550Siwasaki 10030102550Siwasaki ---------------------------------------- 10031102550SiwasakiSummary of changes for this label: 08_16_01 10032102550Siwasaki 10033102550SiwasakiACPI CA Core Subsystem: 10034102550Siwasaki 10035114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 10036114237SnjlAML interpreter (These are already supported by the Intel ASL 10037193267Sjkimcompiler): ToDecimalString, ToHexString, ToString, ToInteger, and 10038126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 10039126372SnjlAML parser, debugger, and disassembler. 10040102550Siwasaki 10041114237SnjlThe internal memory tracking mechanism (leak detection code) has 10042114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 10043114237Snjlblock is no longer allocated for each memory allocation), and now 10044114237Snjlsupports all of the internal object caches. 10045102550Siwasaki 10046114237SnjlThe data structures and code for the internal object caches have 10047114237Snjlbeen coelesced and optimized so that there is a single cache and 10048114237Snjlmemory list data structure and a single group of functions that 10049114237Snjlimplement generic cache management. This has reduced the code 10050114237Snjlsize in both the debug and release versions of the subsystem. 10051102550Siwasaki 10052193267SjkimThe DEBUG_PRINT macro(s) have been optimized for size and replaced 10053126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 10054126372Snjldifferent, because it generates a single call to an internal 10055126372Snjlfunction. This results in a savings of about 90 bytes per 10056193267Sjkiminvocation, resulting in an overall code and data savings of about 10057126372Snjl16% in the debug version of the subsystem. 10058102550Siwasaki 10059102550Siwasaki Linux: 10060102550Siwasaki 10061114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 10062114237Snjlmachines. 10063102550Siwasaki 10064102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 10065102550Siwasaki 10066102550SiwasakiFurther tweaked source code Linuxization. 10067102550Siwasaki 10068102550SiwasakiOther minor fixes. 10069102550Siwasaki 10070102550Siwasaki ASL Compiler: 10071102550Siwasaki 10072114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 10073102550Siwasaki 10074114237SnjlFixed a problem where the optional length parameter for the ACPI 10075114237Snjl2.0 ToString operator. 10076102550Siwasaki 10077114237SnjlFixed multiple extraneous error messages when a syntax error is 10078114237Snjldetected within the declaration line of a control method. 10079102550Siwasaki 10080102550Siwasaki ---------------------------------------- 10081102550SiwasakiSummary of changes for this label: 07_17_01 10082102550Siwasaki 10083102550SiwasakiACPI CA Core Subsystem: 10084102550Siwasaki 10085104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 10086193267SjkimACPI table via the ACPI signature. The interface can be called at 10087126372Snjlany time during kernel initialization, even before the kernel 10088193267Sjkimvirtual memory manager is initialized and paging is enabled. This 10089126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 10090126372Snjlbefore the ACPI CA subsystem is initialized. 10091102550Siwasaki 10092104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 10093104470Siwasakicould be resolved to the incorrect address under the following 10094114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 10095114237Snjlparent operation region is not defined on a DWORD boundary. 10096102550Siwasaki 10097114237SnjlFixed a problem where the interpreter is not being locked during 10098114237Snjlnamespace initialization (during execution of the _INI control 10099114237Snjlmethods), causing an error when an attempt is made to release it 10100114237Snjllater. 10101102550Siwasaki 10102104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 10103114237Snjlongoing throughout the rest of this year. In this label, The Mod 10104114237Snjloperator is implemented. 10105102550Siwasaki 10106102550SiwasakiAdded a new data type to contain full PCI addresses named 10107193267SjkimACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device, 10108126372Snjland Function values. 10109102550Siwasaki 10110102550Siwasaki Linux: 10111102550Siwasaki 10112102550SiwasakiEnhanced the Linux version of the source code to change most 10113102550Siwasakicapitalized ACPI type names to lowercase. For example, all 10114114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 10115114237Snjlresult in a large diff, but the change is strictly cosmetic and 10116114237Snjlaligns the CA code closer to the Linux coding standard. 10117102550Siwasaki 10118102550SiwasakiOSL Interfaces: 10119102550Siwasaki 10120193267SjkimThe interfaces to the PCI configuration space have been changed to 10121193267Sjkimadd the PCI Segment number and to split the single 32-bit combined 10122126372SnjlDeviceFunction field into two 16-bit fields. This was 10123114237Snjlaccomplished by moving the four values that define an address in 10124114237SnjlPCI configuration space (segment, bus, device, and function) to 10125114237Snjlthe new ACPI_PCI_ID structure. 10126102550Siwasaki 10127104470SiwasakiThe changes to the PCI configuration space interfaces led to a 10128104470Siwasakireexamination of the complete set of address space access 10129114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 10130114237Snjlinterfaces have proven difficult to maintain (any small change 10131193267Sjkimmust be propagated across at least 6 interfaces) and do not easily 10132193267Sjkimallow for future expansion to 64 bits if necessary. Also, on some 10133126372Snjlsystems, it would not be appropriate to demultiplex the access 10134126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 10135114237Snjlcorresponding native OS interfaces contain a similar access width 10136114237Snjlparameter. For these reasons, the 18 address space interfaces 10137114237Snjlhave been replaced by these 6 new ones: 10138102550Siwasaki 10139102550SiwasakiAcpiOsReadPciConfiguration 10140102550SiwasakiAcpiOsWritePciConfiguration 10141102550SiwasakiAcpiOsReadMemory 10142102550SiwasakiAcpiOsWriteMemory 10143102550SiwasakiAcpiOsReadPort 10144102550SiwasakiAcpiOsWritePort 10145102550Siwasaki 10146114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 10147114237Snjlto perform the platform and/or OS-specific actions necessary to 10148114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 10149114237Snjlinterface will simply call down to the CA core to perform the low- 10150114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 10151114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 10152167802Sjkim 10153114237Snjlremain OS and platform independent. 10154102550Siwasaki 10155104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 10156114237Snjl"function code and pointer" interface for various miscellaneous 10157114237Snjlsignals and notifications that must be made to the host OS. The 10158114237Snjlfirst such signals are intended to support the ASL Fatal and 10159114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 10160114237Snjlinterface has been obsoleted. 10161102550Siwasaki 10162102550SiwasakiThe definition of the AcpiFormatException interface has been 10163114237Snjlchanged to simplify its use. The caller no longer must supply a 10164114237Snjlbuffer to the call; A pointer to a const string is now returned 10165114237Snjldirectly. This allows the call to be easily used in printf 10166114237Snjlstatements, etc. since the caller does not have to manage a local 10167114237Snjlbuffer. 10168102550Siwasaki 10169114237Snjl 10170102550Siwasaki ASL Compiler, Version X2025: 10171102550Siwasaki 10172114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 10173114237Snjland are fully functional. They will work with all ACPI 1.0 10174193267Sjkiminterpreters, since the operators are simply translated to If/Else 10175126372Snjlpairs. 10176102550Siwasaki 10177104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 10178104470Siwasakiwith 1.0 interpreters, for the same reason. 10179102550Siwasaki 10180114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 10181114237Snjlpackages have a separate opcode, and their size is determined by 10182114237Snjlthe interpreter at run-time. 10183102550Siwasaki 10184193267SjkimDocumentation The ACPI CA Programmer Reference has been updated to 10185126372Snjlreflect the new interfaces and changes to existing interfaces. 10186102550Siwasaki 10187102550Siwasaki ------------------------------------------ 10188102550SiwasakiSummary of changes for this label: 06_15_01 10189102550Siwasaki 10190102550Siwasaki ACPI CA Core Subsystem: 10191102550Siwasaki 10192102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 10193114237Snjlobject would get its byte address inadvertently rounded down to 10194114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 10195102550Siwasaki 10196102550Siwasaki ASL Compiler, version X2024: 10197102550Siwasaki 10198114237SnjlFixed a problem where the Switch() operator would either fault or 10199114237Snjlhang the compiler. Note however, that the AML code for this ACPI 10200114237Snjl2.0 operator is not yet implemented. 10201102550Siwasaki 10202114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 10203114237Snjltimings. 10204102550Siwasaki 10205114237SnjlImplementation of the CreateField operator automatically converts 10206114237Snjla reference to a named field within a resource descriptor from a 10207114237Snjlbyte offset to a bit offset if required. 10208102550Siwasaki 10209102550SiwasakiAdded some missing named fields from the resource descriptor 10210193267Sjkimsupport. These are the names that are automatically created by the 10211126372Snjlcompiler to reference fields within a descriptor. They are only 10212126372Snjlvalid at compile time and are not passed through to the AML 10213114237Snjlinterpreter. 10214102550Siwasaki 10215104470SiwasakiResource descriptor named fields are now typed as Integers and 10216104470Siwasakisubject to compile-time typechecking when used in expressions. 10217102550Siwasaki 10218102550Siwasaki ------------------------------------------ 10219102550SiwasakiSummary of changes for this label: 05_18_01 10220102550Siwasaki 10221102550Siwasaki ACPI CA Core Subsystem: 10222102550Siwasaki 10223114237SnjlFixed a couple of problems in the Field support code where bits 10224193267Sjkimfrom adjacent fields could be returned along with the proper field 10225126372Snjlbits. Restructured the field support code to improve performance, 10226126372Snjlreadability and maintainability. 10227102550Siwasaki 10228114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 10229114237Snjlinto the output, saving hundreds of copies of procedure name 10230114237Snjlstrings within the source, shrinking the memory footprint of the 10231114237Snjldebug version of the core subsystem. 10232102550Siwasaki 10233102550Siwasaki Source Code Structure: 10234102550Siwasaki 10235104470SiwasakiThe source code directory tree was restructured to reflect the 10236114237Snjlcurrent organization of the component architecture. Some files 10237114237Snjland directories have been moved and/or renamed. 10238102550Siwasaki 10239102550Siwasaki Linux: 10240102550Siwasaki 10241102550SiwasakiFixed leaking kacpidpc processes. 10242102550Siwasaki 10243102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 10244102550Siwasakiopened. 10245102550Siwasaki 10246102550Siwasaki ASL Compiler, version X2020: 10247102550Siwasaki 10248114237SnjlMemory allocation performance enhancement - over 24X compile time 10249114237Snjlimprovement on large ASL files. Parse nodes and namestring 10250114237Snjlbuffers are now allocated from a large internal compiler buffer. 10251102550Siwasaki 10252102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 10253102550Siwasakispecified 10254102550Siwasaki 10255193267SjkimThe "-d" debug output option now sends all output to the .DBG file 10256126372Snjlinstead of the console. 10257102550Siwasaki 10258102550Siwasaki"External" second parameter is now optional 10259102550Siwasaki 10260102550Siwasaki"ElseIf" syntax now properly allows the predicate 10261102550Siwasaki 10262102550SiwasakiLast operand to "Load" now recognized as a Target operand 10263102550Siwasaki 10264102550SiwasakiDebug object can now be used anywhere as a normal object. 10265102550Siwasaki 10266102550SiwasakiResourceTemplate now returns an object of type BUFFER 10267102550Siwasaki 10268102550SiwasakiEISAID now returns an object of type INTEGER 10269102550Siwasaki 10270102550Siwasaki"Index" now works with a STRING operand 10271102550Siwasaki 10272102550Siwasaki"LoadTable" now accepts optional parameters 10273102550Siwasaki 10274102550Siwasaki"ToString" length parameter is now optional 10275102550Siwasaki 10276102550Siwasaki"Interrupt (ResourceType," parse error fixed. 10277102550Siwasaki 10278104470Siwasaki"Register" with a user-defined region space parse error fixed 10279102550Siwasaki 10280114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 10281114237Snjlfixed 10282102550Siwasaki 10283102550Siwasaki"Revision" is now an object of type INTEGER. 10284102550Siwasaki 10285102550Siwasaki 10286102550Siwasaki 10287102550Siwasaki------------------------------------------ 10288102550SiwasakiSummary of changes for this label: 05_02_01 10289102550Siwasaki 10290102550SiwasakiLinux: 10291102550Siwasaki 10292102550Siwasaki/proc/acpi/event now blocks properly. 10293102550Siwasaki 10294102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 10295102550Siwasaki/proc/acpi/dsdt. 10296102550Siwasaki 10297102550Siwasaki ACPI CA Core Subsystem: 10298102550Siwasaki 10299193267SjkimFixed a problem introduced in the previous label where some of the 10300126372Snjl"small" resource descriptor types were not recognized. 10301102550Siwasaki 10302193267SjkimImproved error messages for the case where an ASL Field is outside 10303126372Snjlthe range of the parent operation region. 10304102550Siwasaki 10305102550Siwasaki ASL Compiler, version X2018: 10306102550Siwasaki 10307167802Sjkim 10308193267SjkimAdded error detection for ASL Fields that extend beyond the length 10309126372Snjlof the parent operation region (only if the length of the region 10310126372Snjlis known at compile time.) This includes fields that have a 10311126372Snjlminimum access width that is smaller than the parent region, and 10312126372Snjlindividual field units that are partially or entirely beyond the 10313126372Snjlextent of the parent. 10314102550Siwasaki 10315102550Siwasaki 10316102550Siwasaki 10317102550Siwasaki------------------------------------------ 10318102550SiwasakiSummary of changes for this label: 04_27_01 10319102550Siwasaki 10320102550Siwasaki ACPI CA Core Subsystem: 10321102550Siwasaki 10322193267SjkimFixed a problem where the namespace mutex could be released at the 10323126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 10324102550Siwasaki 10325104470SiwasakiAdded optional thread ID output for debug traces, to simplify 10326114237Snjldebugging of multiple threads. Added context switch notification 10327114237Snjlwhen the debug code realizes that a different thread is now 10328114237Snjlexecuting ACPI code. 10329102550Siwasaki 10330114237SnjlSome additional external data types have been prefixed with the 10331114237Snjlstring "ACPI_" for consistency. This may effect existing code. 10332193267SjkimThe data types affected are the external callback typedefs - e.g., 10333167802Sjkim 10334126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 10335102550Siwasaki 10336102550Siwasaki Linux: 10337102550Siwasaki 10338102550SiwasakiFixed an issue with the OSL semaphore implementation where a 10339102550Siwasakithread was waking up with an error from receiving a SIGCHLD 10340102550Siwasakisignal. 10341102550Siwasaki 10342114237SnjlLinux version of ACPI CA now uses the system C library for string 10343114237Snjlmanipulation routines instead of a local implementation. 10344102550Siwasaki 10345102550SiwasakiCleaned up comments and removed TBDs. 10346102550Siwasaki 10347102550Siwasaki ASL Compiler, version X2017: 10348102550Siwasaki 10349102550SiwasakiEnhanced error detection and reporting for all file I/O 10350102550Siwasakioperations. 10351102550Siwasaki 10352102550Siwasaki Documentation: 10353102550Siwasaki 10354102550SiwasakiProgrammer Reference updated to version 1.06. 10355102550Siwasaki 10356102550Siwasaki 10357102550Siwasaki 10358102550Siwasaki------------------------------------------ 10359102550SiwasakiSummary of changes for this label: 04_13_01 10360102550Siwasaki 10361102550Siwasaki ACPI CA Core Subsystem: 10362102550Siwasaki 10363102550SiwasakiRestructured support for BufferFields and RegionFields. 10364104470SiwasakiBankFields support is now fully operational. All known 32-bit 10365114237Snjllimitations on field sizes have been removed. Both BufferFields 10366114237Snjland (Operation) RegionFields are now supported by the same field 10367114237Snjlmanagement code. 10368102550Siwasaki 10369114237SnjlResource support now supports QWORD address and IO resources. The 10370114237Snjl16/32/64 bit address structures and the Extended IRQ structure 10371114237Snjlhave been changed to properly handle Source Resource strings. 10372102550Siwasaki 10373114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 10374193267Sjkimcondition internally and must never be returned by AcpiOsThreadId. 10375126372SnjlThis reserved value was changed from 0 since Unix systems allow a 10376126372Snjlthread ID of 0. 10377102550Siwasaki 10378102550SiwasakiLinux: 10379102550Siwasaki 10380102550SiwasakiDriver code reorganized to enhance portability 10381102550Siwasaki 10382102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 10383102550Siwasaki 10384102550SiwasakiFixed the EC driver to honor _GLK. 10385102550Siwasaki 10386102550SiwasakiASL Compiler, version X2016: 10387102550Siwasaki 10388114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 10389114237Snjladdress space was set to 0, not 0x7f as it should be. 10390102550Siwasaki 10391102550Siwasaki ------------------------------------------ 10392102550SiwasakiSummary of changes for this label: 03_13_01 10393102550Siwasaki 10394102550Siwasaki ACPI CA Core Subsystem: 10395102550Siwasaki 10396104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 10397104470Siwasakipresent. 10398102550Siwasaki 10399193267SjkimNotify handler fix - notifies are deferred until the parent method 10400126372Snjlcompletes execution. This fixes the "mutex already acquired" 10401126372Snjlissue seen occasionally. 10402102550Siwasaki 10403104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 10404114237Snjlfound to cause compatibility problems with existing ASL/AML. The 10405114237Snjlconvert "result-to-target-type" implementation has been removed 10406114237Snjlfor stores to method Args and Locals. Source operand conversion 10407114237Snjlis still fully implemented. Possible changes to ACPI 2.0 10408114237Snjlspecification pending. 10409102550Siwasaki 10410104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 10411104470Siwasakilength. 10412102550Siwasaki 10413102550SiwasakiFix for compiler warnings for 64-bit compiles. 10414102550Siwasaki 10415102550Siwasaki Linux: 10416102550Siwasaki 10417102550Siwasaki/proc output aligned for easier parsing. 10418102550Siwasaki 10419102550SiwasakiRelease-version compile problem fixed. 10420102550Siwasaki 10421104470SiwasakiNew kernel configuration options documented in Configure.help. 10422102550Siwasaki 10423102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 10424102550Siwasakicontext" message. 10425102550Siwasaki 10426102550Siwasaki OSPM: 10427102550Siwasaki 10428102550SiwasakiPower resource driver integrated with bus manager. 10429102550Siwasaki 10430102550SiwasakiFixed kernel fault during active cooling for thermal zones. 10431102550Siwasaki 10432102550SiwasakiSource Code: 10433102550Siwasaki 10434102550SiwasakiThe source code tree has been restructured. 10435102550Siwasaki 10436102550Siwasaki 10437102550Siwasaki 10438102550Siwasaki------------------------------------------ 10439102550SiwasakiSummary of changes for this label: 03_02_01 10440102550Siwasaki 10441102550Siwasaki Linux OS Services Layer (OSL): 10442102550Siwasaki 10443102550SiwasakiMajor revision of all Linux-specific code. 10444102550Siwasaki 10445102550SiwasakiModularized all ACPI-specific drivers. 10446102550Siwasaki 10447102550SiwasakiAdded new thermal zone and power resource drivers. 10448102550Siwasaki 10449114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 10450102550Siwasaki 10451102550SiwasakiNew kernel configuration options. 10452102550Siwasaki 10453102550Siwasaki Linux known issues: 10454102550Siwasaki 10455114237SnjlNew kernel configuration options not documented in Configure.help 10456114237Snjlyet. 10457102550Siwasaki 10458114237Snjl 10459102550SiwasakiModule dependencies not currently implemented. If used, they 10460102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 10461102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 10462102550Siwasaki 10463102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 10464102550Siwasaki 10465102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 10466102550Siwasaki 10467104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 10468104470Siwasakimessage. 10469102550Siwasaki 10470104470SiwasakiSome systems may fail with "execution mutex already acquired" 10471104470Siwasakimessage. 10472102550Siwasaki 10473102550Siwasaki ACPI CA Core Subsystem: 10474102550Siwasaki 10475114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 10476193267Sjkimfor the deadlock detection code. Defined to return a non-zero, 32- 10477126372Snjlbit thread ID for the currently executing thread. May be a non- 10478126372Snjlzero constant integer on single-thread systems. 10479102550Siwasaki 10480193267SjkimImplemented deadlock detection for internal subsystem mutexes. We 10481126372Snjlmay add conditional compilation for this code (debug only) later. 10482102550Siwasaki 10483104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 10484114237Snjlincludes multiple acquires/releases by owner and support for the 10485167802Sjkim 10486114237SnjlMutex SyncLevel parameter. 10487102550Siwasaki 10488102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 10489104470SiwasakiMutexes that have been acquired but not released when a thread 10490114237Snjlexits the interpreter. This forces conformance to the ACPI spec 10491114237Snjl("All mutexes must be released when an invocation exits") and 10492114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 10493114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 10494114237Snjlcontinues to misbehave (which it will). 10495102550Siwasaki 10496104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 10497104470Siwasakisupport. 10498102550Siwasaki 10499104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 10500114237Snjlspec does in fact allow recursive method calls.) The number of 10501114237Snjlrecursive calls is subject to the restrictions imposed by the 10502114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 10503104470Siwasakiparameter. 10504102550Siwasaki 10505102550SiwasakiImplemented support for the SyncLevel parameter for control 10506102550Siwasakimethods (ACPI 2.0 feature) 10507102550Siwasaki 10508114237SnjlFixed a deadlock problem when multiple threads attempted to use 10509114237Snjlthe interpreter. 10510102550Siwasaki 10511102550SiwasakiFixed a problem where the string length of a String package 10512102550Siwasakielement was not always set in a package returned from 10513102550SiwasakiAcpiEvaluateObject. 10514102550Siwasaki 10515114237SnjlFixed a problem where the length of a String package element was 10516114237Snjlnot always included in the length of the overall package returned 10517114237Snjlfrom AcpiEvaluateObject. 10518102550Siwasaki 10519102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 10520102550Siwasakimanager. This manager keeps a list of all outstanding 10521193267Sjkimallocations, and can therefore detect memory leaks and attempts to 10522126372Snjlfree memory blocks more than once. Useful for code such as the 10523114237Snjlpower manager, etc. May not be appropriate for device drivers. 10524114237SnjlPerformance with the debug code enabled is slow. 10525102550Siwasaki 10526102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 10527102550Siwasaki 10528102550Siwasaki ASL Compiler Version X2015: 10529102550Siwasaki 10530102550SiwasakiIntegrated changes to allow the compiler to be generated on 10531102550Siwasakimultiple platforms. 10532102550Siwasaki 10533102550SiwasakiLinux makefile added to generate the compiler on Linux 10534102550Siwasaki 10535102550Siwasaki Source Code: 10536102550Siwasaki 10537102550SiwasakiAll platform-specific headers have been moved to their own 10538102550Siwasakisubdirectory, Include/Platform. 10539102550Siwasaki 10540102550SiwasakiNew source file added, Interpreter/ammutex.c 10541102550Siwasaki 10542102550SiwasakiNew header file, Include/acstruct.h 10543102550Siwasaki 10544102550Siwasaki Documentation: 10545102550Siwasaki 10546114237SnjlThe programmer reference has been updated for the following new 10547114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 10548102550Siwasaki 10549102550Siwasaki ------------------------------------------ 10550102550SiwasakiSummary of changes for this label: 02_08_01 10551102550Siwasaki 10552102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 10553193267Sjkimincorrectly returned if the return resource buffer was larger than 10554126372Snjlthe actual data (in the resource interfaces). 10555102550Siwasaki 10556114237SnjlReferences to named objects within packages are resolved to the 10557167802Sjkim 10558114237Snjlfull pathname string before packages are returned directly (via 10559114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 10560114237Snjlinterfaces. 10561102550Siwasaki 10562102550SiwasakiLinux OS Services Layer (OSL): 10563102550Siwasaki 10564102550SiwasakiImproved /proc battery interface. 10565102550Siwasaki 10566102550Siwasaki 10567104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 10568102550Siwasaki 10569102550SiwasakiASL Compiler Version X2014: 10570102550Siwasaki 10571114237SnjlAll defined method arguments can now be used as local variables, 10572114237Snjlincluding the ones that are not actually passed in as parameters. 10573114237SnjlThe compiler tracks initialization of the arguments and issues an 10574114237Snjlexception if they are used without prior assignment (just like 10575114237Snjllocals). 10576102550Siwasaki 10577193267SjkimThe -o option now specifies a filename prefix that is used for all 10578126372Snjloutput files, including the AML output file. Otherwise, the 10579114237Snjldefault behavior is as follows: 1) the AML goes to the file 10580114237Snjlspecified in the DSDT. 2) all other output files use the input 10581114237Snjlsource filename as the base. 10582102550Siwasaki 10583102550Siwasaki ------------------------------------------ 10584102550SiwasakiSummary of changes for this label: 01_25_01 10585102550Siwasaki 10586114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 10587114237Snjlstore support within the interpreter. This includes support for 10588114237Snjlthe Store operator as well as any ASL operators that include a 10589114237Snjltarget operand. 10590102550Siwasaki 10591102550SiwasakiPartially implemented support for Implicit Result-to-Target 10592114237Snjlconversion. This is when a result object is converted on the fly 10593114237Snjlto the type of an existing target object. Completion of this 10594114237Snjlsupport is pending further analysis of the ACPI specification 10595114237Snjlconcerning this matter. 10596102550Siwasaki 10597114237SnjlCPU-specific code has been removed from the subsystem (hardware 10598114237Snjldirectory). 10599102550Siwasaki 10600102550SiwasakiNew Power Management Timer functions added 10601102550Siwasaki 10602114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 10603114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 10604102550Siwasaki 10605102550SiwasakiFixed C2 and C3 latency calculations. 10606102550Siwasaki 10607102550Siwasaki 10608114237SnjlWe no longer use the compilation date for the version message on 10609193267Sjkiminitialization, but retrieve the version from AcpiGetSystemInfo(). 10610102550Siwasaki 10611102550SiwasakiIncorporated for fix Sony VAIO machines. 10612102550Siwasaki 10613104470SiwasakiDocumentation: The Programmer Reference has been updated and 10614104470Siwasakireformatted. 10615102550Siwasaki 10616102550Siwasaki 10617102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 10618102550Siwasakinumbering and error reporting could get out of sync in the 10619102550Siwasakipresence of multiple include files. 10620102550Siwasaki 10621102550Siwasaki ------------------------------------------ 10622102550SiwasakiSummary of changes for this label: 01_15_01 10623102550Siwasaki 10624102550SiwasakiCore ACPI CA Subsystem: 10625102550Siwasaki 10626114237SnjlImplemented support for type conversions in the execution of the 10627114237SnjlASL Concatenate operator (The second operand is converted to 10628114237Snjlmatch the type of the first operand before concatenation.) 10629102550Siwasaki 10630102550SiwasakiSupport for implicit source operand conversion is partially 10631114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 10632114237SnjlString are freely interchangeable for most ASL operators and are 10633114237Snjlconverted by the interpreter on the fly as required. Implicit 10634114237SnjlTarget operand conversion (where the result is converted to the 10635114237Snjltarget type before storing) is not yet implemented. 10636102550Siwasaki 10637102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 10638102550Siwasaki 10639193267SjkimProblem fixed where a field read on an aligned field could cause a 10640126372Snjlread past the end of the field. 10641102550Siwasaki 10642114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 10643114237Snjldoes not return a value, but the caller expects one. (The ASL 10644114237Snjlcompiler flags this as a warning.) 10645102550Siwasaki 10646102550SiwasakiASL Compiler: 10647102550Siwasaki 10648102550SiwasakiVersion X2011: 10649102550Siwasaki1. Static typechecking of all operands is implemented. This 10650193267Sjkimprevents the use of invalid objects (such as using a Package where 10651126372Snjlan Integer is required) at compile time instead of at interpreter 10652126372Snjlrun-time. 10653114237Snjl2. The ASL source line is printed with ALL errors and warnings. 10654102550Siwasaki3. Bug fix for source EOF without final linefeed. 10655193267Sjkim4. Debug option is split into a parse trace and a namespace trace. 10656102550Siwasaki5. Namespace output option (-n) includes initial values for 10657102550Siwasakiintegers and strings. 10658102550Siwasaki6. Parse-only option added for quick syntax checking. 10659102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 10660102550Siwasaki 10661102550SiwasakiVersion X2012: 10662102550Siwasaki1. Relaxed typechecking to allow interchangeability between 10663114237Snjlstrings, integers, and buffers. These types are now converted by 10664114237Snjlthe interpreter at runtime. 10665114237Snjl2. Compiler reports time taken by each internal subsystem in the 10666114237Snjldebug output file. 10667102550Siwasaki 10668102550Siwasaki 10669102550Siwasaki ------------------------------------------ 10670102550SiwasakiSummary of changes for this label: 12_14_00 10671102550Siwasaki 10672102550SiwasakiASL Compiler: 10673102550Siwasaki 10674104470SiwasakiThis is the first official release of the compiler. Since the 10675104470Siwasakicompiler requires elements of the Core Subsystem, this label 10676104470Siwasakisynchronizes everything. 10677102550Siwasaki 10678102550Siwasaki------------------------------------------ 10679102550SiwasakiSummary of changes for this label: 12_08_00 10680102550Siwasaki 10681102550Siwasaki 10682114237SnjlFixed a problem where named references within the ASL definition 10683114237Snjlof both OperationRegions and CreateXXXFields did not work 10684114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 10685114237Snjlinitialization of the region/field. This is similar (but not 10686114237Snjlrelated internally) to the problem that was fixed in the last 10687114237Snjllabel. 10688114237Snjl 10689102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 10690102550Siwasakifunctions ToBCD and FromBCD. 10691102550Siwasaki 10692102550SiwasakiUpdated all legal headers to include "2000" in the copyright 10693102550Siwasakiyears. 10694102550Siwasaki 10695102550Siwasaki ------------------------------------------ 10696102550SiwasakiSummary of changes for this label: 12_01_00 10697102550Siwasaki 10698193267SjkimFixed a problem where method invocations within the ASL definition 10699126372Snjlof both OperationRegions and CreateXXXFields did not work 10700126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 10701114237Snjlinitialization of the region/field: 10702102550Siwasaki 10703114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 10704114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 10705114237Snjl(0x3005) 10706102550Siwasaki 10707102550SiwasakiFixed a problem where operators with more than one nested 10708104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 10709114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 10710114237Snjlproblem that has gone unnoticed until now. 10711102550Siwasaki 10712102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 10713102550Siwasaki 10714114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 10715114237Snjlprevious build (The prefix part of a relative path was handled 10716114237Snjlincorrectly). 10717102550Siwasaki 10718114237SnjlFixed a problem where Operation Region initialization failed if 10719114237Snjlthe operation region name was a "namepath" instead of a simple 10720114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 10721102550Siwasaki 10722114237SnjlFixed a problem where an assignment to a local variable via the 10723114237Snjlindirect RefOf mechanism only worked for the first such 10724102550Siwasakiassignment. Subsequent assignments were ignored. 10725102550Siwasaki 10726102550Siwasaki ------------------------------------------ 10727102550SiwasakiSummary of changes for this label: 11_15_00 10728102550Siwasaki 10729193267SjkimACPI 2.0 table support with backwards support for ACPI 1.0 and the 10730193267Sjkim0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables, 10731126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 10732126372Snjlgrammar terms at this time. 10733102550Siwasaki 10734193267SjkimAll ACPI hardware access is via the GAS structures in the ACPI 2.0 10735126372SnjlFADT. 10736102550Siwasaki 10737193267SjkimAll physical memory addresses across all platforms are now 64 bits 10738126372Snjlwide. Logical address width remains dependent on the platform 10739126372Snjl(i.e., "void *"). 10740102550Siwasaki 10741114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 10742102550Siwasaki 10743114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 10744114237Snjl2.0 specification. 10745102550Siwasaki 10746104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 10747104470Siwasakirevision number less than 2 use 32-bit integers only. 10748102550Siwasaki 10749114237SnjlFixed a problem where the evaluation of OpRegion operands did not 10750114237Snjlalways resolve them to numbers properly. 10751102550Siwasaki 10752102550Siwasaki------------------------------------------ 10753102550SiwasakiSummary of changes for this label: 10_20_00 10754102550Siwasaki 10755114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 10756114237SnjlCBN_ OpRegions when the _STA returns 0x8. 10757102550Siwasaki 10758104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 10759104470Siwasakivalues before a package object is returned 10760102550Siwasaki 10761104470SiwasakiFix for method call as predicate to if/while construct causing 10762104470Siwasakiincorrect if/while behavior 10763102550Siwasaki 10764114237SnjlFix for Else block package lengths sometimes calculated wrong (if 10765114237Snjlblock > 63 bytes) 10766102550Siwasaki 10767102550SiwasakiFix for Processor object length field, was always zero 10768102550Siwasaki 10769102550SiwasakiTable load abort if FACP sanity check fails 10770102550Siwasaki 10771102550SiwasakiFix for problem with Scope(name) if name already exists 10772102550Siwasaki 10773102550SiwasakiWarning emitted if a named object referenced cannot be found 10774102550Siwasaki(resolved) during method execution. 10775102550Siwasaki 10776102550Siwasaki 10777102550Siwasaki 10778102550Siwasaki 10779102550Siwasaki 10780102550Siwasaki------------------------------------------ 10781102550SiwasakiSummary of changes for this label: 9_29_00 10782102550Siwasaki 10783114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 10784114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 10785114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 10786114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 10787114237SnjlAcpiLoadTables 10788102550Siwasaki 10789193267SjkimNote: These interface changes require changes to all existing OSDs 10790102550Siwasaki 10791114237SnjlThe PCI_Config default address space handler is always installed 10792114237Snjlat the root namespace object. 10793102550Siwasaki 10794102550Siwasaki------------------------------------------- 10795102550SiwasakiSummary of changes for this label: 09_15_00 10796102550Siwasaki 10797102550SiwasakiThe new initialization architecture is implemented. New 10798114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 10799114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 10800167802Sjkim 10801114237Snjl(Namespace is automatically loaded when a table is loaded) 10802102550Siwasaki 10803193267SjkimThe ACPI_OPERAND_OBJECT has been optimized to shrink its size from 10804126372Snjl52 bytes to 32 bytes. There is usually one of these for every 10805126372Snjlnamespace object, so the memory savings is significant. 10806102550Siwasaki 10807114237SnjlImplemented just-in-time evaluation of the CreateField operators. 10808102550Siwasaki 10809102550SiwasakiBug fixes for IA-64 support have been integrated. 10810102550Siwasaki 10811102550SiwasakiAdditional code review comments have been implemented 10812102550Siwasaki 10813193267SjkimThe so-called "third pass parse" has been replaced by a final walk 10814193267Sjkimthrough the namespace to initialize all operation regions (address 10815126372Snjlspaces) and fields that have not yet been initialized during the 10816126372Snjlexecution of the various _INI and REG methods. 10817102550Siwasaki 10818102550SiwasakiNew file - namespace/nsinit.c 10819102550Siwasaki 10820102550Siwasaki------------------------------------------- 10821102550SiwasakiSummary of changes for this label: 09_01_00 10822102550Siwasaki 10823193267SjkimNamespace manager data structures have been reworked to change the 10824126372Snjlprimary object from a table to a single object. This has 10825193267Sjkimresulted in dynamic memory savings of 3X within the namespace and 10826126372Snjl2X overall in the ACPI CA subsystem. 10827102550Siwasaki 10828102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 10829102550Siwasakiinadvertently left commented out. 10830102550Siwasaki 10831114237SnjlReduced the warning count when generating the source with the GCC 10832114237Snjlcompiler. 10833102550Siwasaki 10834102550SiwasakiRevision numbers added to each module header showing the 10835104470SiwasakiSourceSafe version of the file. Please refer to this version 10836114237Snjlnumber when giving us feedback or comments on individual modules. 10837102550Siwasaki 10838114237SnjlThe main object types within the subsystem have been renamed to 10839114237Snjlclarify their purpose: 10840102550Siwasaki 10841102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 10842102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 10843102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 10844102550Siwasaki 10845114237SnjlNOTE: no changes to the initialization sequence are included in 10846114237Snjlthis label. 10847102550Siwasaki 10848102550Siwasaki------------------------------------------- 10849102550SiwasakiSummary of changes for this label: 08_23_00 10850102550Siwasaki 10851102550SiwasakiFixed problem where TerminateControlMethod was being called 10852102550Siwasakimultiple times per method 10853102550Siwasaki 10854193267SjkimFixed debugger problem where single stepping caused a semaphore to 10855126372Snjlbe oversignalled 10856102550Siwasaki 10857104470SiwasakiImproved performance through additional parse object caching - 10858104470Siwasakiadded ACPI_EXTENDED_OP type 10859102550Siwasaki 10860102550Siwasaki------------------------------------------- 10861102550SiwasakiSummary of changes for this label: 08_10_00 10862102550Siwasaki 10863102550SiwasakiParser/Interpreter integration: Eliminated the creation of 10864102550Siwasakicomplete parse trees for ACPI tables and control methods. 10865114237SnjlInstead, parse subtrees are created and then deleted as soon as 10866193267Sjkimthey are processed (Either entered into the namespace or executed 10867126372Snjlby the interpreter). This reduces the use of dynamic kernel 10868126372Snjlmemory significantly. (about 10X) 10869102550Siwasaki 10870114237SnjlException codes broken into classes and renumbered. Be sure to 10871114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 10872114237Snjlhave to renumber the codes again now that they are split into 10873114237Snjlclasses (environment, programmer, AML code, ACPI table, and 10874114237Snjlinternal). 10875102550Siwasaki 10876104470SiwasakiFixed some additional alignment issues in the Resource Manager 10877104470Siwasakisubcomponent 10878102550Siwasaki 10879114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 10880114237Snjlseveral places where mutexes/semaphores were being unlocked 10881114237Snjlwithout a corresponding lock operation. There are no known 10882114237Snjlsemaphore or mutex "leaks" at this time. 10883102550Siwasaki 10884114237SnjlFixed the case where an ASL Return operator is used to return an 10885114237Snjlunnamed package. 10886102550Siwasaki 10887102550Siwasaki------------------------------------------- 10888102550SiwasakiSummary of changes for this label: 07_28_00 10889102550Siwasaki 10890102550SiwasakiFixed a problem with the way addresses were calculated in 10891114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 10892114237Snjlmanifested itself when a Field was created with WordAccess or 10893193267SjkimDwordAccess, but the field unit defined within the Field was less 10894167802Sjkim 10895126372Snjlthan a Word or Dword. 10896102550Siwasaki 10897102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 10898104470Siwasakioperands off of the operand stack to display information. The 10899114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 10900114237Snjlaccessing an operand stack with two or more operands. 10901102550Siwasaki 10902114237SnjlFixed a problem with the PCI configuration space handlers where 10903114237Snjlcontext was getting confused between accesses. This required a 10904114237Snjlchange to the generic address space handler and address space 10905193267Sjkimsetup definitions. Handlers now get both a global handler context 10906126372Snjl(this is the one passed in by the user when executing 10907114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 10908114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 10909114237Snjl_BBN values associated with a specific region). The generic 10910114237Snjlfunction definitions have changed to the following: 10911102550Siwasaki 10912114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 10913114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 10914104470Siwasaki*HandlerContext, // This used to be void *Context void 10915102550Siwasaki*RegionContext); // This is an additional parameter 10916102550Siwasaki 10917102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 10918102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 10919102550Siwasaki**RegionContext); // This used to be **ReturnContext 10920102550Siwasaki 10921102550Siwasaki------------------------------------------- 10922102550SiwasakiSummary of changes for this label: 07_21_00 10923102550Siwasaki 10924102550SiwasakiMajor file consolidation and rename. All files within the 10925193267Sjkiminterpreter have been renamed as well as most header files. This 10926126372Snjlwas done to prevent collisions with existing files in the host 10927126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 10928126372Snjlquite common. The VC project files have been updated. All 10929114237Snjlmakefiles will require modification. 10930102550Siwasaki 10931114237SnjlThe parser/interpreter integration continues in Phase 5 with the 10932114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 10933114237Snjltwice) for each table; This avoids the construction of a huge 10934114237Snjlparse tree and therefore reduces the amount of dynamic memory 10935114237Snjlrequired by the subsystem. Greater use of the parse object cache 10936114237Snjlmeans that performance is unaffected. 10937102550Siwasaki 10938102550SiwasakiMany comments from the two code reviews have been rolled in. 10939102550Siwasaki 10940102550SiwasakiThe 64-bit alignment support is complete. 10941102550Siwasaki 10942102550Siwasaki------------------------------------------- 10943102550SiwasakiSummary of changes for this label: 06_30_00 10944102550Siwasaki 10945114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 10946114237Snjlwe've added support in the source code for 80 column output 10947114237Snjldevices. The code is now mostly constrained to 80 columns or 10948114237Snjlless to support environments and editors that 1) cannot display 10949114237Snjlor print more than 80 characters on a single line, and 2) cannot 10950114237Snjldisable line wrapping. 10951102550Siwasaki 10952104470SiwasakiA major restructuring of the namespace data structure has been 10953104470Siwasakicompleted. The result is 1) cleaner and more 10954114237Snjlunderstandable/maintainable code, and 2) a significant reduction 10955114237Snjlin the dynamic memory requirement for each named ACPI object 10956114237Snjl(almost half). 10957102550Siwasaki 10958102550Siwasaki------------------------------------------- 10959102550SiwasakiSummary of changes for this label: 06_23_00 10960102550Siwasaki 10961114237SnjlLinux support has been added. In order to obtain approval to get 10962114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 10963114237Snjlquite a few changes to the base subsystem that will affect all 10964114237Snjlusers (all the changes are generic and OS- independent). The 10965114237Snjleffects of these global changes have been somewhat far reaching. 10966114237SnjlFiles have been merged and/or renamed and interfaces have been 10967114237Snjlrenamed. The major changes are described below. 10968102550Siwasaki 10969102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 10970102550Siwasakipollution/confusion within our target kernels. All OSD 10971114237Snjlinterfaces must be modified to match the new naming convention. 10972102550Siwasaki 10973193267SjkimFiles merged across the subsystem. A number of the smaller source 10974126372Snjland header files have been merged to reduce the file count and 10975126372Snjlincrease the density of the existing files. There are too many 10976126372Snjlto list here. In general, makefiles that call out individual 10977126372Snjlfiles will require rebuilding. 10978102550Siwasaki 10979104470SiwasakiInterpreter files renamed. All interpreter files now have the 10980104470Siwasakiprefix am* instead of ie* and is*. 10981102550Siwasaki 10982104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 10983114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 10984114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 10985114237Snjl"external interface" or xface or xf in the filenames.j 10986102550Siwasaki 10987102550Siwasaki 10988114237SnjlAll manifest constants have been forced to upper case (some were 10989193267Sjkimmixed case.) Also, the string "ACPI_" has been prepended to many 10990126372Snjl(not all) of the constants, typedefs, and structs. 10991102550Siwasaki 10992102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 10993102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 10994102550Siwasaki 10995102550SiwasakiAll other globals within the subsystem are now prefixed with 10996102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 10997114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 10998193267Sjkimtwo-letter abbreviation for the subcomponent remains after "Acpi" 10999126372Snjl- for example, CmCallocate became AcpiCmCallocate. 11000102550Siwasaki 11001102550SiwasakiAdded a source code translation/conversion utility. Used to 11002114237Snjlgenerate the Linux source code, it can be modified to generate 11003114237Snjlother types of source as well. Can also be used to cleanup 11004114237Snjlexisting source by removing extraneous spaces and blank lines. 11005114237SnjlFound in tools/acpisrc/* 11006102550Siwasaki 11007102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 11008102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 11009102550Siwasaki 11010114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 11011114237SnjlWhen set to one, this indicates that the caller wants to use the 11012167802Sjkim 11013114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 11014114237Snjlboth types. However, implementers of this call may want to use 11015114237Snjldifferent OS primitives depending on the type of semaphore 11016114237Snjlrequested. For example, some operating systems provide separate 11017167802Sjkim 11018193267Sjkim"mutex" and "semaphore" interfaces - where the mutex interface is 11019126372Snjlmuch faster because it doesn't have all the overhead of a full 11020126372Snjlsemaphore implementation. 11021102550Siwasaki 11022104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 11023114237Snjladdress space can block forever if it is the first access to the 11024114237Snjlspace. 11025102550Siwasaki 11026102550Siwasaki------------------------------------------- 11027102550SiwasakiSummary of changes for this label: 06_02_00 11028102550Siwasaki 11029102550SiwasakiSupport for environments that cannot handle unaligned data 11030114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 11031193267Sjkimhandler technology namely SAL/EFI and the IA-64 Linux kernel) has 11032126372Snjlbeen added (via configurable macros) in these three areas: - 11033114237SnjlTransfer of data from the raw AML byte stream is done via byte 11034193267Sjkimmoves instead of word/dword/qword moves. - External objects are 11035126372Snjlaligned within the user buffer, including package elements (sub- 11036193267Sjkimobjects). - Conversion of name strings to UINT32 Acpi Names is now 11037126372Snjldone byte-wise. 11038102550Siwasaki 11039102550SiwasakiThe Store operator was modified to mimic Microsoft's 11040102550Siwasakiimplementation when storing to a Buffer Field. 11041102550Siwasaki 11042102550SiwasakiAdded a check of the BM_STS bit before entering C3. 11043102550Siwasaki 11044114237SnjlThe methods subdirectory has been obsoleted and removed. A new 11045114237Snjlfile, cmeval.c subsumes the functionality. 11046102550Siwasaki 11047102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 11048102550Siwasakimakefile is under the acpiexec directory. 11049