changes.txt revision 200553
1117521Snjl---------------------------------------- 2200553Sjkim14 December 2009. Summary of changes for version 20091214: 3200553Sjkim 4200553SjkimThis release is available at www.acpica.org/downloads 5200553Sjkim 6200553Sjkim1) ACPI CA Core Subsystem: 7200553Sjkim 8200553SjkimEnhanced automatic data type conversions for predefined name repairs. This 9200553Sjkimchange expands the automatic repairs/conversions for predefined name return 10200553Sjkimvalues to make Integers, Strings, and Buffers fully interchangeable. Also, a 11200553SjkimBuffer can be converted to a Package of Integers if necessary. The nsrepair.c 12200553Sjkimmodule was completely restructured. Lin Ming, Bob Moore. 13200553Sjkim 14200553SjkimImplemented automatic removal of null package elements during predefined name 15200553Sjkimrepairs. This change will automatically remove embedded and trailing NULL 16200553Sjkimpackage elements from returned package objects that are defined to contain a 17200553Sjkimvariable number of sub-packages. The driver is then presented with a package 18200553Sjkimwith no null elements to deal with. ACPICA BZ 819. 19200553Sjkim 20200553SjkimImplemented a repair for the predefined _FDE and _GTM names. The expected 21200553Sjkimreturn value for both names is a Buffer of 5 DWORDs. This repair fixes two 22200553Sjkimpossible problems (both seen in the field), where a package of integers is 23200553Sjkimreturned, or a buffer of BYTEs is returned. With assistance from Jung-uk Kim. 24200553Sjkim 25200553SjkimImplemented additional module-level code support. This change will properly 26200553Sjkimexecute module-level code that is not at the root of the namespace (under a 27200553SjkimDevice object, etc.). Now executes the code within the current scope instead 28200553Sjkimof the root. ACPICA BZ 762. Lin Ming. 29200553Sjkim 30200553SjkimFixed possible mutex acquisition errors when running _REG methods. Fixes a 31200553Sjkimproblem where mutex errors can occur when running a _REG method that is in 32200553Sjkimthe same scope as a method-defined operation region or an operation region 33200553Sjkimunder a module-level IF block. This type of code is rare, so the problem has 34200553Sjkimnot been seen before. ACPICA BZ 826. Lin Ming, Bob Moore. 35200553Sjkim 36200553SjkimFixed a possible memory leak during module-level code execution. An object 37200553Sjkimcould be leaked for each block of executed module-level code if the 38200553Sjkiminterpreter slack mode is enabled This change deletes any implicitly returned 39200553Sjkimobject from the module-level code block. Lin Ming. 40200553Sjkim 41200553SjkimRemoved messages for successful predefined repair(s). The repair mechanism 42200553Sjkimwas considered too wordy. Now, messages are only unconditionally emitted if 43200553Sjkimthe return object cannot be repaired. Existing messages for successful 44200553Sjkimrepairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827. 45200553Sjkim 46200553SjkimExample Code and Data Size: These are the sizes for the OS-independent 47200553Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 48200553Sjkimdebug version of the code includes the debug output trace mechanism and has a 49200553Sjkimmuch larger code and data size. 50200553Sjkim 51200553Sjkim Previous Release: 52200553Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 53200553Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 54200553Sjkim Current Release: 55200553Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 56200553Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 57200553Sjkim 58200553Sjkim2) iASL Compiler/Disassembler and Tools: 59200553Sjkim 60200553SjkimiASL: Fixed a regression introduced in 20091112 where intermediate .SRC files 61200553Sjkimwere no longer automatically removed at the termination of the compile. 62200553Sjkim 63200553Sjkimacpiexec: Implemented the -f option to specify default region fill value. 64200553SjkimThis option specifies the value used to initialize buffers that simulate 65200553Sjkimoperation regions. Default value is zero. Useful for debugging problems that 66200553Sjkimdepend on a specific initial value for a region or field. 67200553Sjkim 68200553Sjkim---------------------------------------- 69199337Sjkim12 November 2009. Summary of changes for version 20091112: 70199337Sjkim 71199337SjkimThis release is available at www.acpica.org/downloads 72199337Sjkim 73199337Sjkim1) ACPI CA Core Subsystem: 74199337Sjkim 75199337SjkimImplemented a post-order callback to AcpiWalkNamespace. The existing 76199337Sjkiminterface only has a pre-order callback. This change adds an additional 77199337Sjkimparameter for a post-order callback which will be more useful for bus scans. 78199337SjkimACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference. 79199337Sjkim 80199337SjkimModified the behavior of the operation region memory mapping cache for 81199337SjkimSystemMemory. Ensure that the memory mappings created for operation regions 82199337Sjkimdo not cross 4K page boundaries. Crossing a page boundary while mapping 83199337Sjkimregions can cause kernel warnings on some hosts if the pages have different 84199337Sjkimattributes. Such regions are probably BIOS bugs, and this is the workaround. 85199337SjkimLinux BZ 14445. Lin Ming. 86199337Sjkim 87199337SjkimImplemented an automatic repair for predefined methods that must return 88199337Sjkimsorted lists. This change will repair (by sorting) packages returned by _ALR, 89199337Sjkim_PSS, and _TSS. Drivers can now assume that the packages are correctly sorted 90199337Sjkimand do not contain NULL package elements. Adds one new file, 91199337Sjkimnamespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore. 92199337Sjkim 93199337SjkimFixed a possible fault during predefined name validation if a return Package 94199337Sjkimobject contains NULL elements. Also adds a warning if a NULL element is 95199337Sjkimfollowed by any non-null elements. ACPICA BZ 813, 814. Future enhancement may 96199337Sjkiminclude repair or removal of all such NULL elements where possible. 97199337Sjkim 98199337SjkimImplemented additional module-level executable AML code support. This change 99199337Sjkimwill execute module-level code that is not at the root of the namespace 100199337Sjkim(under a Device object, etc.) at table load time. Module-level executable AML 101199337Sjkimcode has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming. 102199337Sjkim 103199337SjkimImplemented a new internal function to create Integer objects. This function 104199337Sjkimsimplifies miscellaneous object creation code. ACPICA BZ 823. 105199337Sjkim 106199337SjkimReduced the severity of predefined repair messages, Warning to Info. Since 107199337Sjkimthe object was successfully repaired, a warning is too severe. Reduced to an 108199337Sjkiminfo message for now. These messages may eventually be changed to debug-only. 109199337SjkimACPICA BZ 812. 110199337Sjkim 111199337SjkimExample Code and Data Size: These are the sizes for the OS-independent 112199337Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 113199337Sjkimdebug version of the code includes the debug output trace mechanism and has a 114199337Sjkimmuch larger code and data size. 115199337Sjkim 116199337Sjkim Previous Release: 117199337Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 118199337Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 119199337Sjkim Current Release: 120199337Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 121199337Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 122199337Sjkim 123199337Sjkim2) iASL Compiler/Disassembler and Tools: 124199337Sjkim 125199337SjkimiASL: Implemented Switch() with While(1) so that Break works correctly. This 126199337Sjkimchange correctly implements the Switch operator with a surrounding While(1) 127199337Sjkimso that the Break operator works as expected. ACPICA BZ 461. Lin Ming. 128199337Sjkim 129199337SjkimiASL: Added a message if a package initializer list is shorter than package 130199337Sjkimlength. Adds a new remark for a Package() declaration if an initializer list 131199337Sjkimexists, but is shorter than the declared length of the package. Although 132199337Sjkimtechnically legal, this is probably a coding error and it is seen in the 133199337Sjkimfield. ACPICA BZ 815. Lin Ming, Bob Moore. 134199337Sjkim 135199337SjkimiASL: Fixed a problem where the compiler could fault after the maximum number 136199337Sjkimof errors was reached (200). 137199337Sjkim 138199337Sjkimacpixtract: Fixed a possible warning for pointer cast if the compiler warning 139199337Sjkimlevel set very high. 140199337Sjkim 141199337Sjkim---------------------------------------- 142198237Sjkim13 October 2009. Summary of changes for version 20091013: 143197104Sjkim 144197104SjkimThis release is available at www.acpica.org/downloads 145197104Sjkim 146197104Sjkim1) ACPI CA Core Subsystem: 147197104Sjkim 148198237SjkimFixed a problem where an Operation Region _REG method could be executed more 149198237Sjkimthan once. If a custom address space handler is installed by the host before 150198237Sjkimthe "initialize operation regions" phase of the ACPICA initialization, any 151198237Sjkim_REG methods for that address space could be executed twice. This change 152198237Sjkimfixes the problem. ACPICA BZ 427. Lin Ming. 153198237Sjkim 154198237SjkimFixed a possible memory leak for the Scope() ASL operator. When the exact 155198237Sjkiminvocation of "Scope(\)" is executed (change scope to root), one internal 156198237Sjkimoperand object was leaked. Lin Ming. 157198237Sjkim 158198237SjkimImplemented a run-time repair for the _MAT predefined method. If the _MAT 159198237Sjkimreturn value is defined as a Field object in the AML, and the field 160198237Sjkimsize is less than or equal to the default width of an integer (32 or 64),_MAT 161198237Sjkimcan incorrectly return an Integer instead of a Buffer. ACPICA now 162198237Sjkimautomatically repairs this problem. ACPICA BZ 810. 163198237Sjkim 164198237SjkimImplemented a run-time repair for the _BIF and _BIX predefined methods. The 165198237Sjkim"OEM Information" field is often incorrectly returned as an Integer with 166198237Sjkimvalue zero if the field is not supported by the platform. This is due to an 167198237Sjkimambiguity in the ACPI specification. The field should always be a string. 168198237SjkimACPICA now automatically repairs this problem by returning a NULL string 169198237Sjkimwithin the returned Package. ACPICA BZ 807. 170198237Sjkim 171198237SjkimExample Code and Data Size: These are the sizes for the OS-independent 172198237Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 173198237Sjkimdebug version of the code includes the debug output trace mechanism and has a 174198237Sjkimmuch larger code and data size. 175198237Sjkim 176198237Sjkim Previous Release: 177198237Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 178198237Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 179198237Sjkim Current Release: 180198237Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 181198237Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 182198237Sjkim 183198237Sjkim2) iASL Compiler/Disassembler and Tools: 184198237Sjkim 185198237SjkimDisassembler: Fixed a problem where references to external symbols that 186198237Sjkimcontained one or more parent-prefixes (carats) were not handled correctly, 187198237Sjkimpossibly causing a fault. ACPICA BZ 806. Lin Ming. 188198237Sjkim 189198237SjkimDisassembler: Restructured the code so that all functions that handle 190198237Sjkimexternal symbols are in a single module. One new file is added, 191198237Sjkimcommon/dmextern.c. 192198237Sjkim 193198237SjkimAML Debugger: Added a max count argument for the Batch command (which 194198237Sjkimexecutes multiple predefined methods within the namespace.) 195198237Sjkim 196198237SjkimiASL: Updated the compiler documentation (User Reference.) Available at 197198237Sjkimhttp://www.acpica.org/documentation/. ACPICA BZ 750. 198198237Sjkim 199198237SjkimAcpiXtract: Updated for Lint and other formatting changes. Close all open 200198237Sjkimfiles. 201198237Sjkim 202198237Sjkim---------------------------------------- 203198237Sjkim03 September 2009. Summary of changes for version 20090903: 204198237Sjkim 205198237Sjkim1) ACPI CA Core Subsystem: 206198237Sjkim 207197104SjkimFor Windows Vista compatibility, added the automatic execution of an _INI 208197104Sjkimmethod located at the namespace root (\_INI). This method is executed at 209197104Sjkimtable load time. This support is in addition to the automatic execution of 210197104Sjkim\_SB._INI. Lin Ming. 211197104Sjkim 212197104SjkimFixed a possible memory leak in the interpreter for AML package objects if 213197104Sjkimthe package initializer list is longer than the defined size of the package. 214197104SjkimThis apparently can only happen if the BIOS changes the package size on the 215197104Sjkimfly (seen in a _PSS object), as ASL compilers do not allow this. The 216197104Sjkiminterpreter will truncate the package to the defined size (and issue an error 217197104Sjkimmessage), but previously could leave the extra objects undeleted if they were 218197104Sjkimpre-created during the argument processing (such is the case if the package 219197104Sjkimconsists of a number of sub-packages as in the _PSS.) ACPICA BZ 805. 220197104Sjkim 221197104SjkimFixed a problem seen when a Buffer or String is stored to itself via ASL. 222197104SjkimThis has been reported in the field. Previously, ACPICA would zero out the 223197104Sjkimbuffer/string. Now, the operation is treated as a noop. Provides Windows 224197104Sjkimcompatibility. ACPICA BZ 803. Lin Ming. 225197104Sjkim 226197104SjkimRemoved an extraneous error message for ASL constructs of the form 227197104SjkimStore(LocalX,LocalX) when LocalX is uninitialized. These curious statements 228197104Sjkimare seen in many BIOSs and are once again treated as NOOPs and no error is 229197104Sjkimemitted when they are encountered. ACPICA BZ 785. 230197104Sjkim 231197104SjkimFixed an extraneous warning message if a _DSM reserved method returns a 232197104SjkimPackage object. _DSM can return any type of object, so validation on the 233197104Sjkimreturn type cannot be performed. ACPICA BZ 802. 234197104Sjkim 235197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 236197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 237197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 238197104Sjkimmuch larger code and data size. 239197104Sjkim 240197104Sjkim Previous Release: 241197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 242197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 243197104Sjkim Current Release: 244197104Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 245197104Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 246197104Sjkim 247197104Sjkim2) iASL Compiler/Disassembler and Tools: 248197104Sjkim 249197104SjkimiASL: Fixed a problem with the use of the Alias operator and Resource 250197104SjkimTemplates. The correct alias is now constructed and no error is emitted. 251197104SjkimACPICA BZ 738. 252197104Sjkim 253197104SjkimiASL: Implemented the -I option to specify additional search directories for 254197104Sjkiminclude files. Allows multiple additional search paths for include files. 255197104SjkimDirectories are searched in the order specified on the command line (after 256197104Sjkimthe local directory is searched.) ACPICA BZ 800. 257197104Sjkim 258197104SjkimiASL: Fixed a problem where the full pathname for include files was not 259197104Sjkimemitted for warnings/errors. This caused the IDE support to not work 260197104Sjkimproperly. ACPICA BZ 765. 261197104Sjkim 262197104SjkimiASL: Implemented the -@ option to specify a Windows-style response file 263197104Sjkimcontaining additional command line options. ACPICA BZ 801. 264197104Sjkim 265197104SjkimAcpiExec: Added support to load multiple AML files simultaneously (such as a 266197104SjkimDSDT and multiple SSDTs). Also added support for wildcards within the AML 267197104Sjkimpathname. These features allow all machine tables to be easily loaded and 268197104Sjkimdebugged together. ACPICA BZ 804. 269197104Sjkim 270197104SjkimDisassembler: Added missing support for disassembly of HEST table Error Bank 271197104Sjkimsubtables. 272197104Sjkim 273197104Sjkim---------------------------------------- 274197104Sjkim30 July 2009. Summary of changes for version 20090730: 275197104Sjkim 276197104SjkimThe ACPI 4.0 implementation for ACPICA is complete with this release. 277197104Sjkim 278197104Sjkim1) ACPI CA Core Subsystem: 279197104Sjkim 280197104SjkimACPI 4.0: Added header file support for all new and changed ACPI tables. 281197104SjkimCompletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new 282197104Sjkimfor ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, 283197104SjkimEINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There 284197104Sjkimhave been some ACPI 4.0 changes to other existing tables. Split the large 285197104Sjkimactbl1.h header into the existing actbl2.h header. ACPICA BZ 774. 286197104Sjkim 287197104SjkimACPI 4.0: Implemented predefined name validation for all new names. There are 288197104Sjkim31 new names in ACPI 4.0. The predefined validation module was split into two 289197104Sjkimfiles. The new file is namespace/nsrepair.c. ACPICA BZ 770. 290197104Sjkim 291197104SjkimImplemented support for so-called "module-level executable code". This is 292197104Sjkimexecutable AML code that exists outside of any control method and is intended 293197104Sjkimto be executed at table load time. Although illegal since ACPI 2.0, this type 294197104Sjkimof code still exists and is apparently still being created. Blocks of this 295197104Sjkimcode are now detected and executed as intended. Currently, the code blocks 296197104Sjkimmust exist under either an If, Else, or While construct; these are the 297197104Sjkimtypical cases seen in the field. ACPICA BZ 762. Lin Ming. 298197104Sjkim 299197104SjkimImplemented an automatic dynamic repair for predefined names that return 300197104Sjkimnested Package objects. This applies to predefined names that are defined to 301197104Sjkimreturn a variable-length Package of sub-packages. If the number of sub- 302197104Sjkimpackages is one, BIOS code is occasionally seen that creates a simple single 303197104Sjkimpackage with no sub-packages. This code attempts to fix the problem by 304197104Sjkimwrapping a new package object around the existing package. These methods can 305197104Sjkimbe repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ 306197104Sjkim790. 307197104Sjkim 308197104SjkimFixed a regression introduced in 20090625 for the AcpiGetDevices interface. 309197104SjkimThe _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA 310197104SjkimBZ 793. 311197104Sjkim 312197104SjkimFixed a problem with AcpiReset where the reset would silently fail if the 313197104Sjkimregister was one of the protected I/O ports. AcpiReset now bypasses the port 314197104Sjkimvalidation mechanism. This may eventually be driven into the AcpiRead/Write 315197104Sjkiminterfaces. 316197104Sjkim 317197104SjkimFixed a regression related to the recent update of the AcpiRead/Write 318197104Sjkiminterfaces. A sleep/suspend could fail if the optional PM2 Control register 319197104Sjkimdoes not exist during an attempt to write the Bus Master Arbitration bit. 320197104Sjkim(However, some hosts already delete the code that writes this bit, and the 321197104Sjkimcode may in fact be obsolete at this date.) ACPICA BZ 799. 322197104Sjkim 323197104SjkimFixed a problem where AcpiTerminate could fault if inadvertently called twice 324197104Sjkimin succession. ACPICA BZ 795. 325197104Sjkim 326197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 327197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 328197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 329197104Sjkimmuch larger code and data size. 330197104Sjkim 331197104Sjkim Previous Release: 332197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 333197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 334197104Sjkim Current Release: 335197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 336197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 337197104Sjkim 338197104Sjkim2) iASL Compiler/Disassembler and Tools: 339197104Sjkim 340197104SjkimACPI 4.0: Implemented disassembler support for all new ACPI tables and 341197104Sjkimchanges to existing tables. ACPICA BZ 775. 342197104Sjkim 343197104Sjkim---------------------------------------- 344197104Sjkim25 June 2009. Summary of changes for version 20090625: 345197104Sjkim 346197104SjkimThe ACPI 4.0 Specification was released on June 16 and is available at 347197104Sjkimwww.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will 348197104Sjkimcontinue for the next few releases. 349197104Sjkim 350197104Sjkim1) ACPI CA Core Subsystem: 351197104Sjkim 352197104SjkimACPI 4.0: Implemented interpreter support for the IPMI operation region 353197104Sjkimaddress space. Includes support for bi-directional data buffers and an IPMI 354197104Sjkimaddress space handler (to be installed by an IPMI device driver.) ACPICA BZ 355197104Sjkim773. Lin Ming. 356197104Sjkim 357197104SjkimACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes 358197104Sjkimsupport in both the header files and the disassembler. 359197104Sjkim 360197104SjkimCompleted a major update for the AcpiGetObjectInfo external interface. 361197104SjkimChanges include: 362197104Sjkim - Support for variable, unlimited length HID, UID, and CID strings. 363197104Sjkim - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) 364197104Sjkim - Call the _SxW power methods on behalf of a device object. 365197104Sjkim - Determine if a device is a PCI root bridge. 366197104Sjkim - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. 367197104SjkimThese changes will require an update to all callers of this interface. See 368197104Sjkimthe updated ACPICA Programmer Reference for details. One new source file has 369197104Sjkimbeen added - utilities/utids.c. ACPICA BZ 368, 780. 370197104Sjkim 371197104SjkimUpdated the AcpiRead and AcpiWrite external interfaces to support 64-bit 372197104Sjkimtransfers. The Value parameter has been extended from 32 bits to 64 bits in 373197104Sjkimorder to support new ACPI 4.0 tables. These changes will require an update to 374197104Sjkimall callers of these interfaces. See the ACPICA Programmer Reference for 375197104Sjkimdetails. ACPICA BZ 768. 376197104Sjkim 377197104SjkimFixed several problems with AcpiAttachData. The handler was not invoked when 378197104Sjkimthe host node was deleted. The data sub-object was not automatically deleted 379197104Sjkimwhen the host node was deleted. The interface to the handler had an unused 380197104Sjkimparameter, this was removed. ACPICA BZ 778. 381197104Sjkim 382197104SjkimEnhanced the function that dumps ACPI table headers. All non-printable 383197104Sjkimcharacters in the string fields are now replaced with '?' (Signature, OemId, 384197104SjkimOemTableId, and CompilerId.) ACPI tables with non-printable characters in 385197104Sjkimthese fields are occasionally seen in the field. ACPICA BZ 788. 386197104Sjkim 387197104SjkimFixed a problem with predefined method repair code where the code that 388197104Sjkimattempts to repair/convert an object of incorrect type is only executed on 389197104Sjkimthe first time the predefined method is called. The mechanism that disables 390197104Sjkimwarnings on subsequent calls was interfering with the repair mechanism. 391197104SjkimACPICA BZ 781. 392197104Sjkim 393197104SjkimFixed a possible memory leak in the predefined validation/repair code when a 394197104Sjkimbuffer is automatically converted to an expected string object. 395197104Sjkim 396197104SjkimRemoved obsolete 16-bit files from the distribution and from the current git 397197104Sjkimtree head. ACPICA BZ 776. 398197104Sjkim 399197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 400197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 401197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 402197104Sjkimmuch larger code and data size. 403197104Sjkim 404197104Sjkim Previous Release: 405197104Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 406197104Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 407197104Sjkim Current Release: 408197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 409197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 410197104Sjkim 411197104Sjkim2) iASL Compiler/Disassembler and Tools: 412197104Sjkim 413197104SjkimACPI 4.0: iASL and Disassembler - implemented support for the new IPMI 414197104Sjkimoperation region keyword. ACPICA BZ 771, 772. Lin Ming. 415197104Sjkim 416197104SjkimACPI 4.0: iASL - implemented compile-time validation support for all new 417197104Sjkimpredefined names and control methods (31 total). ACPICA BZ 769. 418197104Sjkim 419197104Sjkim---------------------------------------- 420193267Sjkim21 May 2009. Summary of changes for version 20090521: 421193267Sjkim 422193267Sjkim1) ACPI CA Core Subsystem: 423193267Sjkim 424193267SjkimDisabled the preservation of the SCI enable bit in the PM1 control register. 425193267SjkimThe SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be 426193267Sjkima "preserved" bit - "OSPM always preserves this bit position", section 427193267Sjkim4.7.3.2.1. However, some machines fail if this bit is in fact preserved 428193267Sjkimbecause the bit needs to be explicitly set by the OS as a workaround. No 429193267Sjkimmachines fail if the bit is not preserved. Therefore, ACPICA no longer 430193267Sjkimattempts to preserve this bit. 431193267Sjkim 432193267SjkimFixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or 433193267Sjkimincorrectly formed _PRT package could cause a fault. Added validation to 434193267Sjkimensure that each package element is actually a sub-package. 435193267Sjkim 436193267SjkimImplemented a new interface to install or override a single control method, 437193267SjkimAcpiInstallMethod. This interface is useful when debugging in order to repair 438193267Sjkiman existing method or to install a missing method without having to override 439193267Sjkimthe entire ACPI table. See the ACPICA Programmer Reference for use and 440193267Sjkimexamples. Lin Ming, Bob Moore. 441193267Sjkim 442193267SjkimFixed several reference count issues with the DdbHandle object that is 443193267Sjkimcreated from a Load or LoadTable operator. Prevent premature deletion of the 444193267Sjkimobject. Also, mark the object as invalid once the table has been unloaded. 445193267SjkimThis is needed because the handle itself may not be deleted after the table 446193267Sjkimunload, depending on whether it has been stored in a named object by the 447193267Sjkimcaller. Lin Ming. 448193267Sjkim 449193267SjkimFixed a problem with Mutex Sync Levels. Fixed a problem where if multiple 450193267Sjkimmutexes of the same sync level are acquired but then not released in strict 451193267Sjkimopposite order, the internally maintained Current Sync Level becomes confused 452193267Sjkimand can cause subsequent execution errors. ACPICA BZ 471. 453193267Sjkim 454193267SjkimChanged the allowable release order for ASL mutex objects. The ACPI 4.0 455193267Sjkimspecification has been changed to make the SyncLevel for mutex objects more 456193267Sjkimuseful. When releasing a mutex, the SyncLevel of the mutex must now be the 457193267Sjkimsame as the current sync level. This makes more sense than the previous rule 458193267Sjkim(SyncLevel less than or equal). This change updates the code to match the 459193267Sjkimspecification. 460193267Sjkim 461193267SjkimFixed a problem with the local version of the AcpiOsPurgeCache function. The 462193267Sjkim(local) cache must be locked during all cache object deletions. Andrew 463193267SjkimBaumann. 464193267Sjkim 465193267SjkimUpdated the Load operator to use operation region interfaces. This replaces 466193267Sjkimdirect memory mapping with region access calls. Now, all region accesses go 467193267Sjkimthrough the installed region handler as they should. 468193267Sjkim 469193267SjkimSimplified and optimized the NsGetNextNode function. Reduced parameter count 470193267Sjkimand reduced code for this frequently used function. 471193267Sjkim 472193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 473193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 474193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 475193267Sjkimmuch larger code and data size. 476193267Sjkim 477193267Sjkim Previous Release: 478193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 479193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 480193267Sjkim Current Release: 481193267Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 482193267Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 483193267Sjkim 484193267Sjkim2) iASL Compiler/Disassembler and Tools: 485193267Sjkim 486193267SjkimDisassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems 487193267Sjkimwith sub-table disassembly and handling invalid sub-tables. Attempt recovery 488193267Sjkimafter an invalid sub-table ID. 489193267Sjkim 490193267Sjkim---------------------------------------- 491193267Sjkim22 April 2009. Summary of changes for version 20090422: 492193267Sjkim 493193267Sjkim1) ACPI CA Core Subsystem: 494193267Sjkim 495193267SjkimFixed a compatibility issue with the recently released I/O port protection 496193267Sjkimmechanism. For windows compatibility, 1) On a port protection violation, 497193267Sjkimsimply ignore the request and do not return an exception (allow the control 498193267Sjkimmethod to continue execution.) 2) If only part of the request overlaps a 499193267Sjkimprotected port, read/write the individual ports that are not protected. Linux 500193267SjkimBZ 13036. Lin Ming 501193267Sjkim 502193267SjkimEnhanced the execution of the ASL/AML BreakPoint operator so that it actually 503193267Sjkimbreaks into the AML debugger if the debugger is present. This matches the 504193267SjkimACPI-defined behavior. 505193267Sjkim 506193267SjkimFixed several possible warnings related to the use of the configurable 507193267SjkimACPI_THREAD_ID. This type can now be configured as either an integer or a 508193267Sjkimpointer with no warnings. Also fixes several warnings in printf-like 509193267Sjkimstatements for the 64-bit build when the type is configured as a pointer. 510193267SjkimACPICA BZ 766, 767. 511193267Sjkim 512193267SjkimFixed a number of possible warnings when compiling with gcc 4+ (depending on 513193267Sjkimwarning options.) Examples include printf formats, aliasing, unused globals, 514193267Sjkimmissing prototypes, missing switch default statements, use of non-ANSI 515193267Sjkimlibrary functions, use of non-ANSI constructs. See generate/unix/Makefile for 516193267Sjkima list of warning options used with gcc 3 and 4. ACPICA BZ 735. 517193267Sjkim 518193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 519193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 520193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 521193267Sjkimmuch larger code and data size. 522193267Sjkim 523193267Sjkim Previous Release: 524193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 525193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 526193267Sjkim Current Release: 527193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 528193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 529193267Sjkim 530193267Sjkim2) iASL Compiler/Disassembler and Tools: 531193267Sjkim 532193267SjkimiASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on 533193267Sjkimthe 64-bit build. 534193267Sjkim 535193267SjkimiASL: Fixed a problem where the Unix/Linux versions of the compiler could not 536193267Sjkimcorrectly digest Windows/DOS formatted files (with CR/LF). 537193267Sjkim 538193267SjkimiASL: Added a new option for "quiet mode" (-va) that produces only the 539193267Sjkimcompilation summary, not individual errors and warnings. Useful for large 540193267Sjkimbatch compilations. 541193267Sjkim 542193267SjkimAcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex 543193267Sjkimtimeout that can be used to detect hang conditions during execution of AML 544193267Sjkimcode (includes both internal semaphores and AML-defined mutexes and events.) 545193267Sjkim 546193267SjkimAdded new makefiles for the generation of acpica in a generic unix-like 547193267Sjkimenvironment. These makefiles are intended to generate the acpica tools and 548193267Sjkimutilities from the original acpica git source tree structure. 549193267Sjkim 550193267SjkimTest Suites: Updated and cleaned up the documentation files. Updated the 551193267Sjkimcopyrights to 2009, affecting all source files. Use the new version of iASL 552193267Sjkimwith quiet mode. Increased the number of available semaphores in the Windows 553193267SjkimOSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added 554193267Sjkiman alternate implementation of the semaphore timeout to allow aslts to 555193267Sjkimexecute fully on Cygwin. 556193267Sjkim 557193267Sjkim---------------------------------------- 558193267Sjkim20 March 2009. Summary of changes for version 20090320: 559193267Sjkim 560193267Sjkim1) ACPI CA Core Subsystem: 561193267Sjkim 562193267SjkimFixed a possible race condition between AcpiWalkNamespace and dynamic table 563193267Sjkimunloads. Added a reader/writer locking mechanism to allow multiple concurrent 564193267Sjkimnamespace walks (readers), but block a dynamic table unload until it can gain 565193267Sjkimexclusive write access to the namespace. This fixes a problem where a table 566193267Sjkimunload could (possibly catastrophically) delete the portion of the namespace 567193267Sjkimthat is currently being examined by a walk. Adds a new file, utlock.c, that 568193267Sjkimimplements the reader/writer lock mechanism. ACPICA BZ 749. 569193267Sjkim 570193267SjkimFixed a regression introduced in version 20090220 where a change to the FADT 571193267Sjkimhandling could cause the ACPICA subsystem to access non-existent I/O ports. 572193267Sjkim 573193267SjkimModified the handling of FADT register and table (FACS/DSDT) addresses. The 574193267SjkimFADT can contain both 32-bit and 64-bit versions of these addresses. 575193267SjkimPreviously, the 64-bit versions were favored, meaning that if both 32 and 64 576193267Sjkimversions were valid, but not equal, the 64-bit version was used. This was 577193267Sjkimfound to cause some machines to fail. Now, in this case, the 32-bit version 578193267Sjkimis used instead. This now matches the Windows behavior. 579193267Sjkim 580193267SjkimImplemented a new mechanism to protect certain I/O ports. Provides Microsoft 581193267Sjkimcompatibility and protects the standard PC I/O ports from access via AML 582193267Sjkimcode. Adds a new file, hwvalid.c 583193267Sjkim 584193267SjkimFixed a possible extraneous warning message from the FADT support. The 585193267Sjkimmessage warns of a 32/64 length mismatch between the legacy and GAS 586193267Sjkimdefinitions for a register. 587193267Sjkim 588193267SjkimRemoved the obsolete AcpiOsValidateAddress OSL interface. This interface is 589193267Sjkimmade obsolete by the port protection mechanism above. It was previously used 590193267Sjkimto validate the entire address range of an operation region, which could be 591193267Sjkimincorrect if the range included illegal ports, but fields within the 592193267Sjkimoperation region did not actually access those ports. Validation is now 593193267Sjkimperformed on a per-field basis instead of the entire region. 594193267Sjkim 595193267SjkimModified the handling of the PM1 Status Register ignored bit (bit 11.) 596193267SjkimIgnored bits must be "preserved" according to the ACPI spec. Usually, this 597193267Sjkimmeans a read/modify/write when writing to the register. However, for status 598193267Sjkimregisters, writing a one means clear the event. Writing a zero means preserve 599193267Sjkimthe event (do not clear.) This behavior is clarified in the ACPI 4.0 spec, 600193267Sjkimand the ACPICA code now simply always writes a zero to the ignored bit. 601193267Sjkim 602193267SjkimModified the handling of ignored bits for the PM1 A/B Control Registers. As 603193267Sjkimper the ACPI specification, for the control registers, preserve 604193267Sjkim(read/modify/write) all bits that are defined as either reserved or ignored. 605193267Sjkim 606193267SjkimUpdated the handling of write-only bits in the PM1 A/B Control Registers. 607193267SjkimWhen reading the register, zero the write-only bits as per the ACPI spec. 608193267SjkimACPICA BZ 443. Lin Ming. 609193267Sjkim 610193267SjkimRemoved "Linux" from the list of supported _OSI strings. Linux no longer 611193267Sjkimwants to reply true to this request. The Windows strings are the only paths 612193267Sjkimthrough the AML that are tested and known to work properly. 613193267Sjkim 614193267Sjkim Previous Release: 615193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 616193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 617193267Sjkim Current Release: 618193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 619193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 620193267Sjkim 621193267Sjkim2) iASL Compiler/Disassembler and Tools: 622193267Sjkim 623193267SjkimAcpiexec: Split the large aeexec.c file into two new files, aehandlers.c and 624193267Sjkimaetables.c 625193267Sjkim 626193267Sjkim---------------------------------------- 627193267Sjkim20 February 2009. Summary of changes for version 20090220: 628193267Sjkim 629193267Sjkim1) ACPI CA Core Subsystem: 630193267Sjkim 631193267SjkimOptimized the ACPI register locking. Removed locking for reads from the ACPI 632193267Sjkimbit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is 633193267Sjkimnot required when reading the single-bit registers. The 634193267SjkimAcpiGetRegisterUnlocked function is no longer needed and has been removed. 635193267SjkimThis will improve performance for reads on these registers. ACPICA BZ 760. 636193267Sjkim 637193267SjkimFixed the parameter validation for AcpiRead/Write. Now return 638193267SjkimAE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if 639193267Sjkimthe register has an address of zero. Previously, these cases simply returned 640193267SjkimAE_OK. For optional registers such as PM1B status/enable/control, the caller 641193267Sjkimshould check for a valid register address before calling. ACPICA BZ 748. 642193267Sjkim 643193267SjkimRenamed the external ACPI bit register access functions. Renamed 644193267SjkimAcpiGetRegister and AcpiSetRegister to clarify the purpose of these 645193267Sjkimfunctions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister. 646193267SjkimAlso, restructured the code for these functions by simplifying the code path 647193267Sjkimand condensing duplicate code to reduce code size. 648193267Sjkim 649193267SjkimAdded new functions to transparently handle the possibly split PM1 A/B 650193267Sjkimregisters. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions 651193267Sjkimnow handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ 652193267Sjkim746. 653193267Sjkim 654193267SjkimAdded a function to handle the PM1 control registers, AcpiHwWritePm1Control. 655193267SjkimThis function writes both of the PM1 control registers (A/B). These registers 656193267Sjkimare different than the PM1 A/B status and enable registers in that different 657193267Sjkimvalues can be written to the A/B registers. Most notably, the SLP_TYP bits 658193267Sjkimcan be different, as per the values returned from the _Sx predefined methods. 659193267Sjkim 660193267SjkimRemoved an extra register write within AcpiHwClearAcpiStatus. This function 661193267Sjkimwas writing an optional PM1B status register twice. The existing call to the 662193267Sjkimlow-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B 663193267Sjkimregister. ACPICA BZ 751. 664193267Sjkim 665193267SjkimSplit out the PM1 Status registers from the FADT. Added new globals for these 666193267Sjkimregisters (A/B), similar to the way the PM1 Enable registers are handled. 667193267SjkimInstead of overloading the FADT Event Register blocks. This makes the code 668193267Sjkimclearer and less prone to error. 669193267Sjkim 670193267SjkimFixed the warning message for when the platform contains too many ACPI tables 671193267Sjkimfor the default size of the global root table data structure. The calculation 672193267Sjkimfor the truncation value was incorrect. 673193267Sjkim 674193267SjkimRemoved the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this 675193267Sjkimobsolete macro, since it is now a simple reference to ->common.type. There 676193267Sjkimwere about 150 invocations of the macro across 41 files. ACPICA BZ 755. 677193267Sjkim 678193267SjkimRemoved the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as 679193267SjkimTYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to 680193267Sjkimsimply SLEEP_TYPE. ACPICA BZ 754. 681193267Sjkim 682193267SjkimConditionally compile the AcpiSetFirmwareWakingVector64 function. This 683193267Sjkimfunction is only needed on 64-bit host operating systems and is thus not 684193267Sjkimincluded for 32-bit hosts. 685193267Sjkim 686193267SjkimDebug output: print the input and result for invocations of the _OSI reserved 687193267Sjkimcontrol method via the ACPI_LV_INFO debug level. Also, reduced some of the 688193267Sjkimverbosity of this debug level. Len Brown. 689193267Sjkim 690193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 691193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 692193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 693193267Sjkimmuch larger code and data size. 694193267Sjkim 695193267Sjkim Previous Release: 696193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 697193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 698193267Sjkim Current Release: 699193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 700193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 701193267Sjkim 702193267Sjkim2) iASL Compiler/Disassembler and Tools: 703193267Sjkim 704193267SjkimDisassembler: Decode the FADT PM_Profile field. Emit ascii names for the 705193267Sjkimvarious legal performance profiles. 706193267Sjkim 707193267Sjkim---------------------------------------- 708193267Sjkim23 January 2009. Summary of changes for version 20090123: 709193267Sjkim 710193267Sjkim1) ACPI CA Core Subsystem: 711193267Sjkim 712193267SjkimAdded the 2009 copyright to all module headers and signons. This affects 713193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 714193267Sjkimthe tools/utilities. 715193267Sjkim 716193267SjkimImplemented a change to allow the host to override any ACPI table, including 717193267Sjkimdynamically loaded tables. Previously, only the DSDT could be replaced by the 718193267Sjkimhost. With this change, the AcpiOsTableOverride interface is called for each 719193267Sjkimtable found in the RSDT/XSDT during ACPICA initialization, and also whenever 720193267Sjkima table is dynamically loaded via the AML Load operator. 721193267Sjkim 722193267SjkimUpdated FADT flag definitions, especially the Boot Architecture flags. 723193267Sjkim 724193267SjkimDebugger: For the Find command, automatically pad the input ACPI name with 725193267Sjkimunderscores if the name is shorter than 4 characters. This enables a match 726193267Sjkimwith the actual namespace entry which is itself padded with underscores. 727193267Sjkim 728193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 729193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 730193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 731193267Sjkimmuch larger code and data size. 732193267Sjkim 733193267Sjkim Previous Release: 734193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 735193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 736193267Sjkim Current Release: 737193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 738193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 739193267Sjkim 740193267Sjkim2) iASL Compiler/Disassembler and Tools: 741193267Sjkim 742193267SjkimFix build error under Bison-2.4. 743193267Sjkim 744193267SjkimDissasembler: Enhanced FADT support. Added decoding of the Boot Architecture 745193267Sjkimflags. Now decode all flags, regardless of the FADT version. Flag output 746193267Sjkimincludes the FADT version which first defined each flag. 747193267Sjkim 748193267SjkimThe iASL -g option now dumps the RSDT to a file (in addition to the FADT and 749193267SjkimDSDT). Windows only. 750193267Sjkim 751193267Sjkim---------------------------------------- 752193267Sjkim04 December 2008. Summary of changes for version 20081204: 753193267Sjkim 754193267Sjkim1) ACPI CA Core Subsystem: 755193267Sjkim 756193267SjkimThe ACPICA Programmer Reference has been completely updated and revamped for 757193267Sjkimthis release. This includes updates to the external interfaces, OSL 758193267Sjkiminterfaces, the overview sections, and the debugger reference. 759193267Sjkim 760193267SjkimSeveral new ACPICA interfaces have been implemented and documented in the 761193267Sjkimprogrammer reference: 762193267SjkimAcpiReset - Writes the reset value to the FADT-defined reset register. 763193267SjkimAcpiDisableAllGpes - Disable all available GPEs. 764193267SjkimAcpiEnableAllRuntimeGpes - Enable all available runtime GPEs. 765193267SjkimAcpiGetGpeDevice - Get the GPE block device associated with a GPE. 766193267SjkimAcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs. 767193267SjkimAcpiRead - Low-level read ACPI register (was HwLowLevelRead.) 768193267SjkimAcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.) 769193267Sjkim 770193267SjkimMost of the public ACPI hardware-related interfaces have been moved to a new 771193267Sjkimfile, components/hardware/hwxface.c 772193267Sjkim 773193267SjkimEnhanced the FADT parsing and low-level ACPI register access: The ACPI 774193267Sjkimregister lengths within the FADT are now used, and the low level ACPI 775193267Sjkimregister access no longer hardcodes the ACPI register lengths. Given that 776193267Sjkimthere may be some risk in actually trusting the FADT register lengths, a run- 777193267Sjkimtime option was added to fall back to the default hardcoded lengths if the 778193267SjkimFADT proves to contain incorrect values - UseDefaultRegisterWidths. This 779193267Sjkimoption is set to true for now, and a warning is issued if a suspicious FADT 780193267Sjkimregister length is overridden with the default value. 781193267Sjkim 782193267SjkimFixed a reference count issue in NsRepairObject. This problem was introduced 783193267Sjkimin version 20081031 as part of a fix to repair Buffer objects within 784193267SjkimPackages. Lin Ming. 785193267Sjkim 786193267SjkimAdded semaphore support to the Linux/Unix application OS-services layer 787193267Sjkim(OSL). ACPICA BZ 448. Lin Ming. 788193267Sjkim 789193267SjkimAdded the ACPI_MUTEX_TYPE configuration option to select whether mutexes will 790193267Sjkimbe implemented in the OSL, or will binary semaphores be used instead. 791193267Sjkim 792193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 793193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 794193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 795193267Sjkimmuch larger code and data size. 796193267Sjkim 797193267Sjkim Previous Release: 798193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 799193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 800193267Sjkim Current Release: 801193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 802193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 803193267Sjkim 804193267Sjkim2) iASL Compiler/Disassembler and Tools: 805193267Sjkim 806193267SjkimiASL: Completed the '-e' option to include additional ACPI tables in order to 807193267Sjkimaid with disassembly and External statement generation. ACPICA BZ 742. Lin 808193267SjkimMing. 809193267Sjkim 810193267SjkimiASL: Removed the "named object in while loop" error. The compiler cannot 811193267Sjkimdetermine how many times a loop will execute. ACPICA BZ 730. 812193267Sjkim 813193267SjkimDisassembler: Implemented support for FADT revision 2 (MS extension). ACPICA 814193267SjkimBZ 743. 815193267Sjkim 816193267SjkimDisassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG). 817193267Sjkim 818193267Sjkim---------------------------------------- 819193267Sjkim31 October 2008. Summary of changes for version 20081031: 820193267Sjkim 821193267Sjkim1) ACPI CA Core Subsystem: 822193267Sjkim 823193267SjkimRestructured the ACPICA header files into public/private. acpi.h now includes 824193267Sjkimonly the "public" acpica headers. All other acpica headers are "private" and 825193267Sjkimshould not be included by acpica users. One new file, accommon.h is used to 826193267Sjkiminclude the commonly used private headers for acpica code generation. Future 827193267Sjkimplans include moving all private headers to a new subdirectory. 828193267Sjkim 829193267SjkimImplemented an automatic Buffer->String return value conversion for 830193267Sjkimpredefined ACPI methods. For these methods (such as _BIF), added automatic 831193267Sjkimconversion for return objects that are required to be a String, but a Buffer 832193267Sjkimwas found instead. This can happen when reading string battery data from an 833193267Sjkimoperation region, because it used to be difficult to convert the data from 834193267Sjkimbuffer to string from within the ASL. Ensures that the host OS is provided 835193267Sjkimwith a valid null-terminated string. Linux BZ 11822. 836193267Sjkim 837193267SjkimUpdated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector 838193267Sjkiminto two: one for the 32-bit vector, another for the 64-bit vector. This is 839193267Sjkimrequired because the host OS must setup the wake much differently for each 840193267Sjkimvector (real vs. protected mode, etc.) and the interface itself should not be 841193267Sjkimdeciding which vector to use. Also, eliminated the GetFirmwareWakingVector 842193267Sjkiminterface, as it served no purpose (only the firmware reads the vector, OS 843193267Sjkimonly writes the vector.) ACPICA BZ 731. 844193267Sjkim 845193267SjkimImplemented a mechanism to escape infinite AML While() loops. Added a loop 846193267Sjkimcounter to force exit from AML While loops if the count becomes too large. 847193267SjkimThis can occur in poorly written AML when the hardware does not respond 848193267Sjkimwithin a while loop and the loop does not implement a timeout. The maximum 849193267Sjkimloop count is configurable. A new exception code is returned when a loop is 850193267Sjkimbroken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore. 851193267Sjkim 852193267SjkimOptimized the execution of AML While loops. Previously, a control state 853193267Sjkimobject was allocated and freed for each execution of the loop. The 854193267Sjkimoptimization is to simply reuse the control state for each iteration. This 855193267Sjkimspeeds up the raw loop execution time by about 5%. 856193267Sjkim 857193267SjkimEnhanced the implicit return mechanism. For Windows compatibility, return an 858193267Sjkimimplicit integer of value zero for methods that contain no executable code. 859193267SjkimSuch methods are seen in the field as stubs (presumably), and can cause 860193267Sjkimdrivers to fail if they expect a return value. Lin Ming. 861193267Sjkim 862193267SjkimAllow multiple backslashes as root prefixes in namepaths. In a fully 863193267Sjkimqualified namepath, allow multiple backslash prefixes. This can happen (and 864193267Sjkimis seen in the field) because of the use of a double-backslash in strings 865193267Sjkim(since backslash is the escape character) causing confusion. ACPICA BZ 739 866193267SjkimLin Ming. 867193267Sjkim 868193267SjkimEmit a warning if two different FACS or DSDT tables are discovered in the 869193267SjkimFADT. Checks if there are two valid but different addresses for the FACS and 870193267SjkimDSDT within the FADT (mismatch between the 32-bit and 64-bit fields.) 871193267Sjkim 872193267SjkimConsolidated the method argument count validation code. Merged the code that 873193267Sjkimvalidates control method argument counts into the predefined validation 874193267Sjkimmodule. Eliminates possible multiple warnings for incorrect argument counts. 875193267Sjkim 876193267SjkimImplemented ACPICA example code. Includes code for ACPICA initialization, 877193267Sjkimhandler installation, and calling a control method. Available at 878193267Sjkimsource/tools/examples. 879193267Sjkim 880193267SjkimAdded a global pointer for FACS table to simplify internal FACS access. Use 881193267Sjkimthe global pointer instead of using AcpiGetTableByIndex for each FACS access. 882193267SjkimThis simplifies the code for the Global Lock and the Firmware Waking 883193267SjkimVector(s). 884193267Sjkim 885193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 886193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 887193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 888193267Sjkimmuch larger code and data size. 889193267Sjkim 890193267Sjkim Previous Release: 891193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 892193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 893193267Sjkim Current Release: 894193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 895193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 896193267Sjkim 897193267Sjkim2) iASL Compiler/Disassembler and Tools: 898193267Sjkim 899193267SjkimiASL: Improved disassembly of external method calls. Added the -e option to 900193267Sjkimallow the inclusion of additional ACPI tables to help with the disassembly of 901193267Sjkimmethod invocations and the generation of external declarations during the 902193267Sjkimdisassembly. Certain external method invocations cannot be disassembled 903193267Sjkimproperly without the actual declaration of the method. Use the -e option to 904193267Sjkiminclude the table where the external method(s) are actually declared. Most 905193267Sjkimuseful for disassembling SSDTs that make method calls back to the master 906193267SjkimDSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d 907193267Sjkim-e dsdt.aml ssdt1.aml 908193267Sjkim 909193267SjkimiASL: Fix to allow references to aliases within ASL namepaths. Fixes a 910193267Sjkimproblem where the use of an alias within a namepath would result in a not 911193267Sjkimfound error or cause the compiler to fault. Also now allows forward 912193267Sjkimreferences from the Alias operator itself. ACPICA BZ 738. 913193267Sjkim 914193267Sjkim---------------------------------------- 915193267Sjkim26 September 2008. Summary of changes for version 20080926: 916193267Sjkim 917193267Sjkim1) ACPI CA Core Subsystem: 918193267Sjkim 919193267SjkimDesigned and implemented a mechanism to validate predefined ACPI methods and 920193267Sjkimobjects. This code validates the predefined ACPI objects (objects whose names 921193267Sjkimstart with underscore) that appear in the namespace, at the time they are 922193267Sjkimevaluated. The argument count and the type of the returned object are 923193267Sjkimvalidated against the ACPI specification. The purpose of this validation is 924193267Sjkimto detect problems with the BIOS-implemented predefined ACPI objects before 925193267Sjkimthe results are returned to the ACPI-related drivers. Future enhancements may 926193267Sjkiminclude actual repair of incorrect return objects where possible. Two new 927193267Sjkimfiles are nspredef.c and acpredef.h. 928193267Sjkim 929193267SjkimFixed a fault in the AML parser if a memory allocation fails during the Op 930193267Sjkimcompletion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492. 931193267Sjkim 932193267SjkimFixed an issue with implicit return compatibility. This change improves the 933193267Sjkimimplicit return mechanism to be more compatible with the MS interpreter. Lin 934193267SjkimMing, ACPICA BZ 349. 935193267Sjkim 936193267SjkimImplemented support for zero-length buffer-to-string conversions. Allow zero 937193267Sjkimlength strings during interpreter buffer-to-string conversions. For example, 938193267Sjkimduring the ToDecimalString and ToHexString operators, as well as implicit 939193267Sjkimconversions. Fiodor Suietov, ACPICA BZ 585. 940193267Sjkim 941193267SjkimFixed two possible memory leaks in the error exit paths of 942193267SjkimAcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are 943193267Sjkimsimilar in that they use a stack of state objects in order to eliminate 944193267Sjkimrecursion. The stack must be fully unwound and deallocated if an error 945193267Sjkimoccurs. Lin Ming. ACPICA BZ 383. 946193267Sjkim 947193267SjkimRemoved the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global 948193267SjkimACPI register table. This bit does not exist and is unused. Lin Ming, Bob 949193267SjkimMoore ACPICA BZ 442. 950193267Sjkim 951193267SjkimRemoved the obsolete version number in module headers. Removed the 952193267Sjkim"$Revision" number that appeared in each module header. This version number 953193267Sjkimwas useful under SourceSafe and CVS, but has no meaning under git. It is not 954193267Sjkimonly incorrect, it could also be misleading. 955193267Sjkim 956193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 957193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 958193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 959193267Sjkimmuch larger code and data size. 960193267Sjkim 961193267Sjkim Previous Release: 962193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 963193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 964193267Sjkim Current Release: 965193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 966193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 967193267Sjkim 968193267Sjkim---------------------------------------- 969193267Sjkim29 August 2008. Summary of changes for version 20080829: 970193267Sjkim 971193267Sjkim1) ACPI CA Core Subsystem: 972193267Sjkim 973193267SjkimCompleted a major cleanup of the internal ACPI_OPERAND_OBJECT of type 974193267SjkimReference. Changes include the elimination of cheating on the Object field 975193267Sjkimfor the DdbHandle subtype, addition of a reference class field to 976193267Sjkimdifferentiate the various reference types (instead of an AML opcode), and the 977193267Sjkimcleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723 978193267Sjkim 979193267SjkimReduce an error to a warning for an incorrect method argument count. 980193267SjkimPreviously aborted with an error if too few arguments were passed to a 981193267Sjkimcontrol method via the external ACPICA interface. Now issue a warning instead 982193267Sjkimand continue. Handles the case where the method inadvertently declares too 983193267Sjkimmany arguments, but does not actually use the extra ones. Applies mainly to 984193267Sjkimthe predefined methods. Lin Ming. Linux BZ 11032. 985193267Sjkim 986193267SjkimDisallow the evaluation of named object types with no intrinsic value. Return 987193267SjkimAE_TYPE for objects that have no value and therefore evaluation is undefined: 988193267SjkimDevice, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of 989193267Sjkimthese types were allowed, but an exception would be generated at some point 990193267Sjkimduring the evaluation. Now, the error is generated up front. 991193267Sjkim 992193267SjkimFixed a possible memory leak in the AcpiNsGetExternalPathname function 993193267Sjkim(nsnames.c). Fixes a leak in the error exit path. 994193267Sjkim 995193267SjkimRemoved the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug 996193267Sjkimlevels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION 997193267Sjkiminterfaces. Also added ACPI_DB_EVENTS to correspond with the existing 998193267SjkimACPI_LV_EVENTS. 999193267Sjkim 1000193267SjkimRemoved obsolete and/or unused exception codes from the acexcep.h header. 1001193267SjkimThere is the possibility that certain device drivers may be affected if they 1002193267Sjkimuse any of these exceptions. 1003193267Sjkim 1004193267SjkimThe ACPICA documentation has been added to the public git source tree, under 1005193267Sjkimacpica/documents. Included are the ACPICA programmer reference, the iASL 1006193267Sjkimcompiler reference, and the changes.txt release logfile. 1007193267Sjkim 1008193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1009193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1010193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1011193267Sjkimmuch larger code and data size. 1012193267Sjkim 1013193267Sjkim Previous Release: 1014193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1015193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1016193267Sjkim Current Release: 1017193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1018193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1019193267Sjkim 1020193267Sjkim2) iASL Compiler/Disassembler and Tools: 1021193267Sjkim 1022193267SjkimAllow multiple argument counts for the predefined _SCP method. ACPI 3.0 1023193267Sjkimdefines _SCP with 3 arguments. Previous versions defined it with only 1 1024193267Sjkimargument. iASL now allows both definitions. 1025193267Sjkim 1026193267SjkimiASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero- 1027193267Sjkimlength subtables when disassembling ACPI tables. Also fixed a couple of 1028193267Sjkimerrors where a full 16-bit table type field was not extracted from the input 1029193267Sjkimproperly. 1030193267Sjkim 1031193267Sjkimacpisrc: Improve comment counting mechanism for generating source code 1032193267Sjkimstatistics. Count first and last lines of multi-line comments as whitespace, 1033193267Sjkimnot comment lines. Handle Linux legal header in addition to standard acpica 1034193267Sjkimheader. 1035193267Sjkim 1036193267Sjkim---------------------------------------- 1037193267Sjkim 1038193267Sjkim29 July 2008. Summary of changes for version 20080729: 1039193267Sjkim 1040193267SjkimThis release is available at http://acpica.org/downloads 1041193267SjkimDirect git access via http://www.acpica.org/repos/acpica.git 1042193267Sjkim 1043193267Sjkim1) ACPI CA Core Subsystem: 1044193267Sjkim 1045193267SjkimFix a possible deadlock in the GPE dispatch. Remove call to 1046193267SjkimAcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt 1047193267Sjkimto acquire the GPE lock but can deadlock since the GPE lock is already held 1048193267Sjkimat dispatch time. This code was introduced in version 20060831 as a response 1049193267Sjkimto Linux BZ 6881 and has since been removed from Linux. 1050193267Sjkim 1051193267SjkimAdd a function to dereference returned reference objects. Examines the return 1052193267Sjkimobject from a call to AcpiEvaluateObject. Any Index or RefOf references are 1053193267Sjkimautomatically dereferenced in an attempt to return something useful (these 1054193267Sjkimreference types cannot be converted into an external ACPI_OBJECT.) Provides 1055193267SjkimMS compatibility. Lin Ming, Bob Moore. Linux BZ 11105 1056193267Sjkim 1057193267Sjkimx2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new 1058193267Sjkimsubtables for the MADT and one new subtable for the SRAT. Includes 1059193267Sjkimdisassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC 1060193267SjkimSpecification, June 2008. 1061193267Sjkim 1062193267SjkimAdditional error checking for pathname utilities. Add error check after all 1063193267Sjkimcalls to AcpiNsGetPathnameLength. Add status return from 1064193267SjkimAcpiNsBuildExternalPath and check after all calls. Add parameter validation 1065193267Sjkimto AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar. 1066193267Sjkim 1067193267SjkimReturn status from the global init function AcpiUtGlobalInitialize. This is 1068193267Sjkimused by both the kernel subsystem and the utilities such as iASL compiler. 1069193267SjkimThe function could possibly fail when the caches are initialized. Yang Yi. 1070193267Sjkim 1071193267SjkimAdd a function to decode reference object types to strings. Created for 1072193267Sjkimimproved error messages. 1073193267Sjkim 1074193267SjkimImprove object conversion error messages. Better error messages during object 1075193267Sjkimconversion from internal to the external ACPI_OBJECT. Used for external calls 1076193267Sjkimto AcpiEvaluateObject. 1077193267Sjkim 1078193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1079193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1080193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1081193267Sjkimmuch larger code and data size. 1082193267Sjkim 1083193267Sjkim Previous Release: 1084193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1085193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1086193267Sjkim Current Release: 1087193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1088193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1089193267Sjkim 1090193267Sjkim2) iASL Compiler/Disassembler and Tools: 1091193267Sjkim 1092193267SjkimDebugger: fix a possible hang when evaluating non-methods. Fixes a problem 1093193267Sjkimintroduced in version 20080701. If the object being evaluated (via execute 1094193267Sjkimcommand) is not a method, the debugger can hang while trying to obtain non- 1095193267Sjkimexistent parameters. 1096193267Sjkim 1097193267SjkimiASL: relax error for using reserved "_T_x" identifiers. These names can 1098193267Sjkimappear in a disassembled ASL file if they were emitted by the original 1099193267Sjkimcompiler. Instead of issuing an error or warning and forcing the user to 1100193267Sjkimmanually change these names, issue a remark instead. 1101193267Sjkim 1102193267SjkimiASL: error if named object created in while loop. Emit an error if any named 1103193267Sjkimobject is created within a While loop. If allowed, this code will generate a 1104193267Sjkimrun-time error on the second iteration of the loop when an attempt is made to 1105193267Sjkimcreate the same named object twice. ACPICA bugzilla 730. 1106193267Sjkim 1107193267SjkimiASL: Support absolute pathnames for include files. Add support for absolute 1108193267Sjkimpathnames within the Include operator. previously, only relative pathnames 1109193267Sjkimwere supported. 1110193267Sjkim 1111193267SjkimiASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor. 1112193267SjkimThe ACPI spec requires one interrupt minimum. BZ 423 1113193267Sjkim 1114193267SjkimiASL: Handle a missing ResourceSource arg, with a present SourceIndex. 1115193267SjkimHandles the case for the Interrupt Resource Descriptor where 1116193267Sjkimthe ResourceSource argument is omitted but ResourceSourceIndex 1117193267Sjkimis present. Now leave room for the Index. BZ 426 1118193267Sjkim 1119193267SjkimiASL: Prevent error message if CondRefOf target does not exist. Fixes cases 1120193267Sjkimwhere an error message is emitted if the target does not exist. BZ 516 1121193267Sjkim 1122193267SjkimiASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option 1123193267Sjkim(get ACPI tables on Windows). This was apparently broken in version 20070919. 1124193267Sjkim 1125193267SjkimAcpiXtract: Handle EOF while extracting data. Correctly handle the case where 1126193267Sjkimthe EOF happens immediately after the last table in the input file. Print 1127193267Sjkimcompletion message. Previously, no message was displayed in this case. 1128193267Sjkim 1129193267Sjkim---------------------------------------- 1130193267Sjkim01 July 2008. Summary of changes for version 20080701: 1131193267Sjkim 1132193267SjkimThis release is available at http://acpica.org/downloads 1133193267SjkimDirect git access via http://www.acpica.org/repos/acpica.git 1134193267Sjkim 1135193267Sjkim0) Git source tree / acpica.org 1136193267Sjkim 1137193267SjkimFixed a problem where a git-clone from http would not transfer the entire 1138193267Sjkimsource tree. 1139193267Sjkim 1140193267Sjkim1) ACPI CA Core Subsystem: 1141193267Sjkim 1142193267SjkimImplemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one 1143193267Sjkimenable bit. Now performs a read-change-write of the enable register instead 1144193267Sjkimof simply writing out the cached enable mask. This will prevent inadvertent 1145193267Sjkimenabling of GPEs if a rogue GPE is received during initialization (before GPE 1146193267Sjkimhandlers are installed.) 1147193267Sjkim 1148193267SjkimImplemented a copy for dynamically loaded tables. Previously, dynamically 1149193267Sjkimloaded tables were simply mapped - but on some machines this memory is 1150193267Sjkimcorrupted after suspend. Now copy the table to a local buffer. For the 1151193267SjkimOpRegion case, added checksum verify. Use the table length from the table 1152193267Sjkimheader, not the region length. For the Buffer case, use the table length 1153193267Sjkimalso. Dennis Noordsij, Bob Moore. BZ 10734 1154193267Sjkim 1155193267SjkimFixed a problem where the same ACPI table could not be dynamically loaded and 1156193267Sjkimunloaded more than once. Without this change, a table cannot be loaded again 1157193267Sjkimonce it has been loaded/unloaded one time. The current mechanism does not 1158193267Sjkimunregister a table upon an unload. During a load, if the same table is found, 1159193267Sjkimthis no longer returns an exception. BZ 722 1160193267Sjkim 1161193267SjkimFixed a problem where the wrong descriptor length was calculated for the 1162193267SjkimEndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag 1163193267Sjkimare calculated as 12 bytes long, but the actual length in the internal 1164193267Sjkimdescriptor is 16 because of the round-up to 8 on the 64-bit build. Reported 1165193267Sjkimby Linn Crosetto. BZ 728 1166193267Sjkim 1167193267SjkimFixed a possible memory leak in the Unload operator. The DdbHandle returned 1168193267Sjkimby Load() did not have its reference count decremented during unload, leading 1169193267Sjkimto a memory leak. Lin Ming. BZ 727 1170193267Sjkim 1171193267SjkimFixed a possible memory leak when deleting thermal/processor objects. Any 1172193267Sjkimassociated notify handlers (and objects) were not being deleted. Fiodor 1173193267SjkimSuietov. BZ 506 1174193267Sjkim 1175193267SjkimFixed the ordering of the ASCII names in the global mutex table to match the 1176193267Sjkimactual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only. 1177193267SjkimVegard Nossum. BZ 726 1178193267Sjkim 1179193267SjkimEnhanced the AcpiGetObjectInfo interface to return the number of required 1180193267Sjkimarguments if the object is a control method. Added this call to the debugger 1181193267Sjkimso the proper number of default arguments are passed to a method. This 1182193267Sjkimprevents a warning when executing methods from AcpiExec. 1183193267Sjkim 1184193267SjkimAdded a check for an invalid handle in AcpiGetObjectInfo. Return 1185193267SjkimAE_BAD_PARAMETER if input handle is invalid. BZ 474 1186193267Sjkim 1187193267SjkimFixed an extraneous warning from exconfig.c on the 64-bit build. 1188193267Sjkim 1189193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1190193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1191193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1192193267Sjkimmuch larger code and data size. 1193193267Sjkim 1194193267Sjkim Previous Release: 1195193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1196193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1197193267Sjkim Current Release: 1198193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1199193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1200193267Sjkim 1201193267Sjkim2) iASL Compiler/Disassembler and Tools: 1202193267Sjkim 1203193267SjkimiASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both 1204193267Sjkimresource descriptor names. 1205193267Sjkim 1206193267SjkimiASL: Detect invalid ASCII characters in input (windows version). Removed the 1207193267Sjkim"-CF" flag from the flex compile, enables correct detection of non-ASCII 1208193267Sjkimcharacters in the input. BZ 441 1209193267Sjkim 1210193267SjkimiASL: Eliminate warning when result of LoadTable is not used. Eliminate the 1211193267Sjkim"result of operation not used" warning when the DDB handle returned from 1212193267SjkimLoadTable is not used. The warning is not needed. BZ 590 1213193267Sjkim 1214193267SjkimAcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to 1215193267Sjkimpass address of table to the AML. Added option to disable OpRegion simulation 1216193267Sjkimto allow creation of an OpRegion with a real address that was passed to _CFG. 1217193267SjkimAll of this allows testing of the Load and Unload operators from AcpiExec. 1218193267Sjkim 1219193267SjkimDebugger: update tables command for unloaded tables. Handle unloaded tables 1220193267Sjkimand use the standard table header output routine. 1221193267Sjkim 1222193267Sjkim---------------------------------------- 1223193267Sjkim09 June 2008. Summary of changes for version 20080609: 1224193267Sjkim 1225193267Sjkim1) ACPI CA Core Subsystem: 1226193267Sjkim 1227193267SjkimImplemented a workaround for reversed _PRT entries. A significant number of 1228193267SjkimBIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This 1229193267Sjkimchange dynamically detects and repairs this problem. Provides compatibility 1230193267Sjkimwith MS ACPI. BZ 6859 1231193267Sjkim 1232193267SjkimSimplified the internal ACPI hardware interfaces to eliminate the locking 1233193267Sjkimflag parameter from Register Read/Write. Added a new external interface, 1234193267SjkimAcpiGetRegisterUnlocked. 1235193267Sjkim 1236193267SjkimFixed a problem where the invocation of a GPE control method could hang. This 1237193267Sjkimwas a regression introduced in 20080514. The new method argument count 1238193267Sjkimvalidation mechanism can enter an infinite loop when a GPE method is 1239193267Sjkimdispatched. Problem fixed by removing the obsolete code that passed GPE block 1240193267Sjkiminformation to the notify handler via the control method parameter pointer. 1241193267Sjkim 1242193267SjkimFixed a problem where the _SST execution status was incorrectly returned to 1243193267Sjkimthe caller of AcpiEnterSleepStatePrep. This was a regression introduced in 1244193267Sjkim20080514. _SST is optional and a NOT_FOUND exception should never be 1245193267Sjkimreturned. BZ 716 1246193267Sjkim 1247193267SjkimFixed a problem where a deleted object could be accessed from within the AML 1248193267Sjkimparser. This was a regression introduced in version 20080123 as a fix for the 1249193267SjkimUnload operator. Lin Ming. BZ 10669 1250193267Sjkim 1251193267SjkimCleaned up the debug operand dump mechanism. Eliminated unnecessary operands 1252193267Sjkimand eliminated the use of a negative index in a loop. Operands are now 1253193267Sjkimdisplayed in the correct order, not backwards. This also fixes a regression 1254193267Sjkimintroduced in 20080514 on 64-bit systems where the elimination of 1255193267SjkimACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715 1256193267Sjkim 1257193267SjkimFixed a possible memory leak in EvPciConfigRegionSetup where the error exit 1258193267Sjkimpath did not delete a locally allocated structure. 1259193267Sjkim 1260193267SjkimUpdated definitions for the DMAR and SRAT tables to synchronize with the 1261193267Sjkimcurrent specifications. Includes disassembler support. 1262193267Sjkim 1263193267SjkimFixed a problem in the mutex debug code (in utmutex.c) where an incorrect 1264193267Sjkimloop termination value was used. Loop terminated on iteration early, missing 1265193267Sjkimone mutex. Linn Crosetto 1266193267Sjkim 1267193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1268193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1269193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1270193267Sjkimmuch larger code and data size. 1271193267Sjkim 1272193267Sjkim Previous Release: 1273193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1274193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1275193267Sjkim Current Release: 1276193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1277193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1278193267Sjkim 1279193267Sjkim2) iASL Compiler/Disassembler and Tools: 1280193267Sjkim 1281193267SjkimDisassembler: Implemented support for EisaId() within _CID objects. Now 1282193267Sjkimdisassemble integer _CID objects back to EisaId invocations, including 1283193267Sjkimmultiple integers within _CID packages. Includes single-step support for 1284193267Sjkimdebugger also. 1285193267Sjkim 1286193267SjkimDisassembler: Added support for DMAR and SRAT table definition changes. 1287193267Sjkim 1288193267Sjkim---------------------------------------- 1289193267Sjkim14 May 2008. Summary of changes for version 20080514: 1290193267Sjkim 1291193267Sjkim1) ACPI CA Core Subsystem: 1292193267Sjkim 1293193267SjkimFixed a problem where GPEs were enabled too early during the ACPICA 1294193267Sjkiminitialization. This could lead to "handler not installed" errors on some 1295193267Sjkimmachines. Moved GPE enable until after _REG/_STA/_INI methods are run. This 1296193267Sjkimensures that all operation regions and devices throughout the namespace have 1297193267Sjkimbeen initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916. 1298193267Sjkim 1299193267SjkimImplemented a change to the enter sleep code. Moved execution of the _GTS 1300193267Sjkimmethod to just before setting sleep enable bit. The execution was moved from 1301193267SjkimAcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed 1302193267Sjkimimmediately before the SLP_EN bit is set, as per the ACPI specification. 1303193267SjkimLuming Yu, BZ 1653. 1304193267Sjkim 1305193267SjkimImplemented a fix to disable unknown GPEs (2nd version). Now always disable 1306193267Sjkimthe GPE, even if ACPICA thinks that that it is already disabled. It is 1307193267Sjkimpossible that the AML or some other code has enabled the GPE unbeknownst to 1308193267Sjkimthe ACPICA code. 1309193267Sjkim 1310193267SjkimFixed a problem with the Field operator where zero-length fields would return 1311193267Sjkiman AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL 1312193267Sjkimfield declarations in Field(), BankField(), and IndexField(). BZ 10606. 1313193267Sjkim 1314193267SjkimImplemented a fix for the Load operator, now load the table at the namespace 1315193267Sjkimroot. This reverts a change introduced in version 20071019. The table is now 1316193267Sjkimloaded at the namespace root even though this goes against the ACPI 1317193267Sjkimspecification. This provides compatibility with other ACPI implementations. 1318193267SjkimThe ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming. 1319193267Sjkim 1320193267SjkimFixed a problem where ACPICA would not Load() tables with unusual signatures. 1321193267SjkimNow ignore ACPI table signature for Load() operator. Only "SSDT" is 1322193267Sjkimacceptable to the ACPI spec, but tables are seen with OEMx and null sigs. 1323193267SjkimTherefore, signature validation is worthless. Apparently MS ACPI accepts such 1324193267Sjkimsignatures, ACPICA must be compatible. BZ 10454. 1325193267Sjkim 1326193267SjkimFixed a possible negative array index in AcpiUtValidateException. Added NULL 1327193267Sjkimfields to the exception string arrays to eliminate a -1 subtraction on the 1328193267SjkimSubStatus field. 1329193267Sjkim 1330193267SjkimUpdated the debug tracking macros to reduce overall code and data size. 1331193267SjkimChanged ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings 1332193267Sjkiminstead of pointers to static strings. Jan Beulich and Bob Moore. 1333193267Sjkim 1334193267SjkimImplemented argument count checking in control method invocation via 1335193267SjkimAcpiEvaluateObject. Now emit an error if too few arguments, warning if too 1336193267Sjkimmany. This applies only to extern programmatic control method execution, not 1337193267Sjkimmethod-to-method calls within the AML. Lin Ming. 1338193267Sjkim 1339193267SjkimEliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no 1340193267Sjkimlonger needed, especially with the removal of 16-bit support. It was replaced 1341193267Sjkimmostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on 1342193267Sjkim32/64-bit platforms is required. 1343193267Sjkim 1344193267SjkimAdded the C const qualifier for appropriate string constants -- mostly 1345193267SjkimMODULE_NAME and printf format strings. Jan Beulich. 1346193267Sjkim 1347193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1348193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1349193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1350193267Sjkimmuch larger code and data size. 1351193267Sjkim 1352193267Sjkim Previous Release: 1353193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1354193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1355193267Sjkim Current Release: 1356193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1357193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1358193267Sjkim 1359193267Sjkim2) iASL Compiler/Disassembler and Tools: 1360193267Sjkim 1361193267SjkimImplemented ACPI table revision ID validation in the disassembler. Zero is 1362193267Sjkimalways invalid. For DSDTs, the ID controls the interpreter integer width. 1 1363193267Sjkimmeans 32-bit and this is unusual. 2 or greater is 64-bit. 1364193267Sjkim 1365193267Sjkim---------------------------------------- 1366193267Sjkim21 March 2008. Summary of changes for version 20080321: 1367193267Sjkim 1368193267Sjkim1) ACPI CA Core Subsystem: 1369193267Sjkim 1370193267SjkimImplemented an additional change to the GPE support in order to suppress 1371193267Sjkimspurious or stray GPEs. The AcpiEvDisableGpe function will now permanently 1372193267Sjkimdisable incoming GPEs that are neither enabled nor disabled -- meaning that 1373193267Sjkimthe GPE is unknown to the system. This should prevent future interrupt floods 1374193267Sjkimfrom that GPE. BZ 6217 (Zhang Rui) 1375193267Sjkim 1376193267SjkimFixed a problem where NULL package elements were not returned to the 1377193267SjkimAcpiEvaluateObject interface correctly. The element was simply ignored 1378193267Sjkiminstead of returning a NULL ACPI_OBJECT package element, potentially causing 1379193267Sjkima buffer overflow and/or confusing the caller who expected a fixed number of 1380193267Sjkimelements. BZ 10132 (Lin Ming, Bob Moore) 1381193267Sjkim 1382193267SjkimFixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword, 1383193267SjkimQword), Field, BankField, and IndexField operators when invoked from inside 1384193267Sjkiman executing control method. In this case, these operators created namespace 1385193267Sjkimnodes that were incorrectly left marked as permanent nodes instead of 1386193267Sjkimtemporary nodes. This could cause a problem if there is race condition 1387193267Sjkimbetween an exiting control method and a running namespace walk. (Reported by 1388193267SjkimLinn Crosetto) 1389193267Sjkim 1390193267SjkimFixed a problem where the CreateField and CreateXXXField operators would 1391193267Sjkimincorrectly allow duplicate names (the name of the field) with no exception 1392193267Sjkimgenerated. 1393193267Sjkim 1394193267SjkimImplemented several changes for Notify handling. Added support for new Notify 1395193267Sjkimvalues (ACPI 2.0+) and improved the Notify debug output. Notify on 1396193267SjkimPowerResource objects is no longer allowed, as per the ACPI specification. 1397193267Sjkim(Bob Moore, Zhang Rui) 1398193267Sjkim 1399193267SjkimAll Reference Objects returned via the AcpiEvaluateObject interface are now 1400193267Sjkimmarked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for 1401193267SjkimNULL objects - either NULL package elements or unresolved named references. 1402193267Sjkim 1403193267SjkimFixed a problem where an extraneous debug message was produced for package 1404193267Sjkimobjects (when debugging enabled). The message "Package List length larger 1405193267Sjkimthan NumElements count" is now produced in the correct case, and is now an 1406193267Sjkimerror message rather than a debug message. Added a debug message for the 1407193267Sjkimopposite case, where NumElements is larger than the Package List (the package 1408193267Sjkimwill be padded out with NULL elements as per the ACPI spec.) 1409193267Sjkim 1410193267SjkimImplemented several improvements for the output of the ASL "Debug" object to 1411193267Sjkimclarify and keep all data for a given object on one output line. 1412193267Sjkim 1413193267SjkimFixed two size calculation issues with the variable-length Start Dependent 1414193267Sjkimresource descriptor. 1415193267Sjkim 1416193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1417193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1418193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1419193267Sjkima much larger code and data size. 1420193267Sjkim 1421193267Sjkim Previous Release: 1422193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 1423193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 1424193267Sjkim Current Release: 1425193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1426193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1427193267Sjkim 1428193267Sjkim2) iASL Compiler/Disassembler and Tools: 1429193267Sjkim 1430193267SjkimFixed a problem with the use of the Switch operator where execution of the 1431193267Sjkimcontaining method by multiple concurrent threads could cause an 1432193267SjkimAE_ALREADY_EXISTS exception. This is caused by the fact that there is no 1433193267Sjkimactual Switch opcode, it must be simulated with local named temporary 1434193267Sjkimvariables and if/else pairs. The solution chosen was to mark any method that 1435193267Sjkimuses Switch as Serialized, thus preventing multiple thread entries. BZ 469. 1436193267Sjkim 1437193267Sjkim---------------------------------------- 1438193267Sjkim13 February 2008. Summary of changes for version 20080213: 1439193267Sjkim 1440193267Sjkim1) ACPI CA Core Subsystem: 1441193267Sjkim 1442193267SjkimImplemented another MS compatibility design change for GPE/Notify handling. 1443193267SjkimGPEs are now cleared/enabled asynchronously to allow all pending notifies to 1444193267Sjkimcomplete first. It is expected that the OSL will queue the enable request 1445193267Sjkimbehind all pending notify requests (may require changes to the local host OSL 1446193267Sjkimin AcpiOsExecute). Alexey Starikovskiy. 1447193267Sjkim 1448193267SjkimFixed a problem where buffer and package objects passed as arguments to a 1449193267Sjkimcontrol method via the external AcpiEvaluateObject interface could cause an 1450193267SjkimAE_AML_INTERNAL exception depending on the order and type of operators 1451193267Sjkimexecuted by the target control method. 1452193267Sjkim 1453193267SjkimFixed a problem where resource descriptor size optimization could cause a 1454193267Sjkimproblem when a _CRS resource template is passed to a _SRS method. The _SRS 1455193267Sjkimresource template must use the same descriptors (with the same size) as 1456193267Sjkimreturned from _CRS. This change affects the following resource descriptors: 1457193267SjkimIRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487) 1458193267Sjkim 1459193267SjkimFixed a problem where a CopyObject to RegionField, BankField, and IndexField 1460193267Sjkimobjects did not perform an implicit conversion as it should. These types must 1461193267Sjkimretain their initial type permanently as per the ACPI specification. However, 1462193267Sjkima CopyObject to all other object types should not perform an implicit 1463193267Sjkimconversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388 1464193267Sjkim 1465193267SjkimFixed a problem with the AcpiGetDevices interface where the mechanism to 1466193267Sjkimmatch device CIDs did not examine the entire list of available CIDs, but 1467193267Sjkiminstead aborted on the first non-matching CID. Andrew Patterson. 1468193267Sjkim 1469193267SjkimFixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was 1470193267Sjkiminadvertently changed to return a 16-bit value instead of a 32-bit value, 1471193267Sjkimtruncating the upper dword of a 64-bit value. This macro is only used to 1472193267Sjkimdisplay debug output, so no incorrect calculations were made. Also, 1473193267Sjkimreimplemented the macro so that a 64-bit shift is not performed by 1474193267Sjkiminefficient compilers. 1475193267Sjkim 1476193267SjkimAdded missing va_end statements that should correspond with each va_start 1477193267Sjkimstatement. 1478193267Sjkim 1479193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1480193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1481193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1482193267Sjkima much larger code and data size. 1483193267Sjkim 1484193267Sjkim Previous Release: 1485193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 1486193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 1487193267Sjkim Current Release: 1488193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 1489193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 1490193267Sjkim 1491193267Sjkim2) iASL Compiler/Disassembler and Tools: 1492193267Sjkim 1493193267SjkimImplemented full disassembler support for the following new ACPI tables: 1494193267SjkimBERT, EINJ, and ERST. Implemented partial disassembler support for the 1495193267Sjkimcomplicated HEST table. These tables support the Windows Hardware Error 1496193267SjkimArchitecture (WHEA). 1497193267Sjkim 1498193267Sjkim---------------------------------------- 1499193267Sjkim23 January 2008. Summary of changes for version 20080123: 1500193267Sjkim 1501193267Sjkim1) ACPI CA Core Subsystem: 1502193267Sjkim 1503193267SjkimAdded the 2008 copyright to all module headers and signons. This affects 1504193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1505193267Sjkimthe tools/utilities. 1506193267Sjkim 1507193267SjkimFixed a problem with the SizeOf operator when used with Package and Buffer 1508193267Sjkimobjects. These objects have deferred execution for some arguments, and the 1509193267Sjkimexecution is now completed before the SizeOf is executed. This problem caused 1510193267Sjkimunexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ 1511193267Sjkim9558 1512193267Sjkim 1513193267SjkimImplemented an enhancement to the interpreter "slack mode". In the absence of 1514193267Sjkiman explicit return or an implicitly returned object from the last executed 1515193267Sjkimopcode, a control method will now implicitly return an integer of value 0 for 1516193267SjkimMicrosoft compatibility. (Lin Ming) BZ 392 1517193267Sjkim 1518193267SjkimFixed a problem with the Load operator where an exception was not returned in 1519193267Sjkimthe case where the table is already loaded. (Lin Ming) BZ 463 1520193267Sjkim 1521193267SjkimImplemented support for the use of DDBHandles as an Indexed Reference, as per 1522193267Sjkimthe ACPI spec. (Lin Ming) BZ 486 1523193267Sjkim 1524193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 1525193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 1526193267Sjkim 1527193267SjkimFixed a problem with the LoadTable operator where the OemId and OemTableId 1528193267Sjkiminput strings could cause unexpected failures if they were shorter than the 1529193267Sjkimmaximum lengths allowed. (Lin Ming, Bob Moore) BZ 576 1530193267Sjkim 1531193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 1532193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 1533193267Sjkim 1534193267SjkimImplemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST, 1535193267SjkimIBFT, UEFI, WDAT. Disassembler support is forthcoming. 1536193267Sjkim 1537193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1538193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1539193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1540193267Sjkima much larger code and data size. 1541193267Sjkim 1542193267Sjkim Previous Release: 1543193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 1544193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 1545193267Sjkim Current Release: 1546193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 1547193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 1548193267Sjkim 1549193267Sjkim2) iASL Compiler/Disassembler and Tools: 1550193267Sjkim 1551193267SjkimImplemented support in the disassembler for checksum validation on incoming 1552193267Sjkimbinary DSDTs and SSDTs. If incorrect, a message is displayed within the table 1553193267Sjkimheader dump at the start of the disassembly. 1554193267Sjkim 1555193267SjkimImplemented additional debugging information in the namespace listing file 1556193267Sjkimcreated during compilation. In addition to the namespace hierarchy, the full 1557193267Sjkimpathname to each namespace object is displayed. 1558193267Sjkim 1559193267SjkimFixed a problem with the disassembler where invalid ACPI tables could cause 1560193267Sjkimfaults or infinite loops. 1561193267Sjkim 1562193267SjkimFixed an unexpected parse error when using the optional "parameter types" 1563193267Sjkimlist in a control method declaration. (Lin Ming) BZ 397 1564193267Sjkim 1565193267SjkimFixed a problem where two External declarations with the same name did not 1566193267Sjkimcause an error (Lin Ming) BZ 509 1567193267Sjkim 1568193267SjkimImplemented support for full TermArgs (adding Argx, Localx and method 1569193267Sjkiminvocation) for the ParameterData parameter to the LoadTable operator. (Lin 1570193267SjkimMing) BZ 583,587 1571193267Sjkim 1572193267Sjkim---------------------------------------- 1573193267Sjkim19 December 2007. Summary of changes for version 20071219: 1574193267Sjkim 1575193267Sjkim1) ACPI CA Core Subsystem: 1576193267Sjkim 1577193267SjkimImplemented full support for deferred execution for the TermArg string 1578193267Sjkimarguments for DataTableRegion. This enables forward references and full 1579193267Sjkimoperand resolution for the three string arguments. Similar to OperationRegion 1580193267Sjkimdeferred argument execution.) Lin Ming. BZ 430 1581193267Sjkim 1582193267SjkimImplemented full argument resolution support for the BankValue argument to 1583193267SjkimBankField. Previously, only constants were supported, now any TermArg may be 1584193267Sjkimused. Lin Ming BZ 387, 393 1585193267Sjkim 1586193267SjkimFixed a problem with AcpiGetDevices where the search of a branch of the 1587193267Sjkimdevice tree could be terminated prematurely. In accordance with the ACPI 1588193267Sjkimspecification, the search down the current branch is terminated if a device 1589193267Sjkimis both not present and not functional (instead of just not present.) Yakui 1590193267SjkimZhao. 1591193267Sjkim 1592193267SjkimFixed a problem where "unknown" GPEs could be allowed to fire repeatedly if 1593193267Sjkimthe underlying AML code changed the GPE enable registers. Now, any unknown 1594193267Sjkimincoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled 1595193267Sjkiminstead of simply ignored. Rui Zhang. 1596193267Sjkim 1597193267SjkimFixed a problem with Index Fields where the Index register was incorrectly 1598193267Sjkimlimited to a maximum of 32 bits. Now any size may be used. 1599193267Sjkim 1600193267SjkimFixed a couple memory leaks associated with "implicit return" objects when 1601193267Sjkimthe AML Interpreter slack mode is enabled. Lin Ming BZ 349 1602193267Sjkim 1603193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1604193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1605193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1606193267Sjkima much larger code and data size. 1607193267Sjkim 1608193267Sjkim Previous Release: 1609193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 1610193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 1611193267Sjkim Current Release: 1612193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 1613193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 1614193267Sjkim 1615193267Sjkim---------------------------------------- 1616193267Sjkim14 November 2007. Summary of changes for version 20071114: 1617193267Sjkim 1618193267Sjkim1) ACPI CA Core Subsystem: 1619193267Sjkim 1620193267SjkimImplemented event counters for each of the Fixed Events, the ACPI SCI 1621193267Sjkim(interrupt) itself, and control methods executed. Named 1622193267SjkimAcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These 1623193267Sjkimshould be useful for debugging and statistics. 1624193267Sjkim 1625193267SjkimImplemented a new external interface, AcpiGetStatistics, to retrieve the 1626193267Sjkimcontents of the various event counters. Returns the current values for 1627193267SjkimAcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and 1628193267SjkimAcpiMethodCount. The interface can be expanded in the future if new counters 1629193267Sjkimare added. Device drivers should use this interface rather than access the 1630193267Sjkimcounters directly. 1631193267Sjkim 1632193267SjkimFixed a problem with the FromBCD and ToBCD operators. With some compilers, 1633193267Sjkimthe ShortDivide function worked incorrectly, causing problems with the BCD 1634193267Sjkimfunctions with large input values. A truncation from 64-bit to 32-bit 1635193267Sjkiminadvertently occurred. Internal BZ 435. Lin Ming 1636193267Sjkim 1637193267SjkimFixed a problem with Index references passed as method arguments. References 1638193267Sjkimpassed as arguments to control methods were dereferenced immediately (before 1639193267Sjkimcontrol was passed to the called method). The references are now correctly 1640193267Sjkimpassed directly to the called method. BZ 5389. Lin Ming 1641193267Sjkim 1642193267SjkimFixed a problem with CopyObject used in conjunction with the Index operator. 1643193267SjkimThe reference was incorrectly dereferenced before the copy. The reference is 1644193267Sjkimnow correctly copied. BZ 5391. Lin Ming 1645193267Sjkim 1646193267SjkimFixed a problem with Control Method references within Package objects. These 1647193267Sjkimreferences are now correctly generated. This completes the package 1648193267Sjkimconstruction overhaul that began in version 20071019. 1649193267Sjkim 1650193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1651193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1652193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1653193267Sjkima much larger code and data size. 1654193267Sjkim 1655193267Sjkim Previous Release: 1656193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 1657193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 1658193267Sjkim Current Release: 1659193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 1660193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 1661193267Sjkim 1662193267Sjkim 1663193267Sjkim2) iASL Compiler/Disassembler and Tools: 1664193267Sjkim 1665193267SjkimThe AcpiExec utility now installs handlers for all of the predefined 1666193267SjkimOperation Region types. New types supported are: PCI_Config, CMOS, and 1667193267SjkimPCIBARTarget. 1668193267Sjkim 1669193267SjkimFixed a problem with the 64-bit version of AcpiExec where the extended (64- 1670193267Sjkimbit) address fields for the DSDT and FACS within the FADT were not being 1671193267Sjkimused, causing truncation of the upper 32-bits of these addresses. Lin Ming 1672193267Sjkimand Bob Moore 1673193267Sjkim 1674193267Sjkim---------------------------------------- 1675193267Sjkim19 October 2007. Summary of changes for version 20071019: 1676193267Sjkim 1677193267Sjkim1) ACPI CA Core Subsystem: 1678193267Sjkim 1679193267SjkimFixed a problem with the Alias operator when the target of the alias is a 1680193267Sjkimnamed ASL operator that opens a new scope -- Scope, Device, PowerResource, 1681193267SjkimProcessor, and ThermalZone. In these cases, any children of the original 1682193267Sjkimoperator could not be accessed via the alias, potentially causing unexpected 1683193267SjkimAE_NOT_FOUND exceptions. (BZ 9067) 1684193267Sjkim 1685193267SjkimFixed a problem with the Package operator where all named references were 1686193267Sjkimcreated as object references and left otherwise unresolved. According to the 1687193267SjkimACPI specification, a Package can only contain Data Objects or references to 1688193267Sjkimcontrol methods. The implication is that named references to Data Objects 1689193267Sjkim(Integer, Buffer, String, Package, BufferField, Field) should be resolved 1690193267Sjkimimmediately upon package creation. This is the approach taken with this 1691193267Sjkimchange. References to all other named objects (Methods, Devices, Scopes, 1692193267Sjkimetc.) are all now properly created as reference objects. (BZ 5328) 1693193267Sjkim 1694193267SjkimReverted a change to Notify handling that was introduced in version 1695193267Sjkim20070508. This version changed the Notify handling from asynchronous to 1696193267Sjkimfully synchronous (Device driver Notify handling with respect to the Notify 1697193267SjkimASL operator). It was found that this change caused more problems than it 1698193267Sjkimsolved and was removed by most users. 1699193267Sjkim 1700193267SjkimFixed a problem with the Increment and Decrement operators where the type of 1701193267Sjkimthe target object could be unexpectedly and incorrectly changed. (BZ 353) 1702193267SjkimLin Ming. 1703193267Sjkim 1704193267SjkimFixed a problem with the Load and LoadTable operators where the table 1705193267Sjkimlocation within the namespace was ignored. Instead, the table was always 1706193267Sjkimloaded into the root or current scope. Lin Ming. 1707193267Sjkim 1708193267SjkimFixed a problem with the Load operator when loading a table from a buffer 1709193267Sjkimobject. The input buffer was prematurely zeroed and/or deleted. (BZ 577) 1710193267Sjkim 1711193267SjkimFixed a problem with the Debug object where a store of a DdbHandle reference 1712193267Sjkimobject to the Debug object could cause a fault. 1713193267Sjkim 1714193267SjkimAdded a table checksum verification for the Load operator, in the case where 1715193267Sjkimthe load is from a buffer. (BZ 578). 1716193267Sjkim 1717193267SjkimImplemented additional parameter validation for the LoadTable operator. The 1718193267Sjkimlength of the input strings SignatureString, OemIdString, and OemTableId are 1719193267Sjkimnow checked for maximum lengths. (BZ 582) Lin Ming. 1720193267Sjkim 1721193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1722193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1723193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1724193267Sjkima much larger code and data size. 1725193267Sjkim 1726193267Sjkim Previous Release: 1727193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 1728193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 1729193267Sjkim Current Release: 1730193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 1731193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 1732193267Sjkim 1733193267Sjkim 1734193267Sjkim2) iASL Compiler/Disassembler: 1735193267Sjkim 1736193267SjkimFixed a problem where if a single file was specified and the file did not 1737193267Sjkimexist, no error message was emitted. (Introduced with wildcard support in 1738193267Sjkimversion 20070917.) 1739193267Sjkim 1740193267Sjkim---------------------------------------- 1741193267Sjkim19 September 2007. Summary of changes for version 20070919: 1742193267Sjkim 1743193267Sjkim1) ACPI CA Core Subsystem: 1744193267Sjkim 1745193267SjkimDesigned and implemented new external interfaces to install and remove 1746193267Sjkimhandlers for ACPI table-related events. Current events that are defined are 1747193267SjkimLOAD and UNLOAD. These interfaces allow the host to track ACPI tables as 1748193267Sjkimthey are dynamically loaded and unloaded. See AcpiInstallTableHandler and 1749193267SjkimAcpiRemoveTableHandler. (Lin Ming and Bob Moore) 1750193267Sjkim 1751193267SjkimFixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 1752193267Sjkim(acpi_serialized option on Linux) could cause some systems to hang during 1753193267Sjkiminitialization. (Bob Moore) BZ 8171 1754193267Sjkim 1755193267SjkimFixed a problem where objects of certain types (Device, ThermalZone, 1756193267SjkimProcessor, PowerResource) can be not found if they are declared and 1757193267Sjkimreferenced from within the same control method (Lin Ming) BZ 341 1758193267Sjkim 1759193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1760193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1761193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1762193267Sjkima much larger code and data size. 1763193267Sjkim 1764193267Sjkim Previous Release: 1765193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 1766193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 1767193267Sjkim Current Release: 1768193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 1769193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 1770193267Sjkim 1771193267Sjkim 1772193267Sjkim2) iASL Compiler/Disassembler: 1773193267Sjkim 1774193267SjkimImplemented support to allow multiple files to be compiled/disassembled in a 1775193267Sjkimsingle invocation. This includes command line wildcard support for both the 1776193267SjkimWindows and Unix versions of the compiler. This feature simplifies the 1777193267Sjkimdisassembly and compilation of multiple ACPI tables in a single directory. 1778193267Sjkim 1779193267Sjkim---------------------------------------- 1780193267Sjkim08 May 2007. Summary of changes for version 20070508: 1781193267Sjkim 1782193267Sjkim1) ACPI CA Core Subsystem: 1783193267Sjkim 1784193267SjkimImplemented a Microsoft compatibility design change for the handling of the 1785193267SjkimNotify AML operator. Previously, notify handlers were dispatched and 1786193267Sjkimexecuted completely asynchronously in a deferred thread. The new design 1787193267Sjkimstill executes the notify handlers in a different thread, but the original 1788193267Sjkimthread that executed the Notify() now waits at a synchronization point for 1789193267Sjkimthe notify handler to complete. Some machines depend on a synchronous Notify 1790193267Sjkimoperator in order to operate correctly. 1791193267Sjkim 1792193267SjkimImplemented support to allow Package objects to be passed as method 1793193267Sjkimarguments to the external AcpiEvaluateObject interface. Previously, this 1794193267Sjkimwould return the AE_NOT_IMPLEMENTED exception. This feature had not been 1795193267Sjkimimplemented since there were no reserved control methods that required it 1796193267Sjkimuntil recently. 1797193267Sjkim 1798193267SjkimFixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that 1799193267Sjkimcontained invalid non-zero values in reserved fields could cause later 1800193267Sjkimfailures because these fields have meaning in later revisions of the FADT. 1801193267SjkimFor incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields 1802193267Sjkimare: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.) 1803193267Sjkim 1804193267SjkimFixed a problem where the Global Lock handle was not properly updated if a 1805193267Sjkimthread that acquired the Global Lock via executing AML code then attempted 1806193267Sjkimto acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe 1807193267SjkimLiu. 1808193267Sjkim 1809193267SjkimFixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list 1810193267Sjkimcould be corrupted if the interrupt being removed was at the head of the 1811193267Sjkimlist. Reported by Linn Crosetto. 1812193267Sjkim 1813193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1814193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1815193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1816193267Sjkima much larger code and data size. 1817193267Sjkim 1818193267Sjkim Previous Release: 1819193267Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1820193267Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 1821193267Sjkim Current Release: 1822193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 1823193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 1824193267Sjkim 1825193267Sjkim---------------------------------------- 1826167802Sjkim20 March 2007. Summary of changes for version 20070320: 1827167802Sjkim 1828167802Sjkim1) ACPI CA Core Subsystem: 1829167802Sjkim 1830193267SjkimImplemented a change to the order of interpretation and evaluation of AML 1831193267Sjkimoperand objects within the AML interpreter. The interpreter now evaluates 1832193267Sjkimoperands in the order that they appear in the AML stream (and the 1833193267Sjkimcorresponding ASL code), instead of in the reverse order (after the entire 1834193267Sjkimoperand list has been parsed). The previous behavior caused several subtle 1835193267Sjkimincompatibilities with the Microsoft AML interpreter as well as being 1836193267Sjkimsomewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov. 1837167802Sjkim 1838193267SjkimImplemented a change to the ACPI Global Lock support. All interfaces to the 1839193267Sjkimglobal lock now allow the same thread to acquire the lock multiple times. 1840193267SjkimThis affects the AcpiAcquireGlobalLock external interface to the global lock 1841193267Sjkimas well as the internal use of the global lock to support AML fields -- a 1842193267Sjkimcontrol method that is holding the global lock can now simultaneously access 1843193267SjkimAML fields that require global lock protection. Previously, in both cases, 1844193267Sjkimthis would have resulted in an AE_ALREADY_ACQUIRED exception. The change to 1845193267SjkimAcpiAcquireGlobalLock is of special interest to drivers for the Embedded 1846193267SjkimController. There is no change to the behavior of the AML Acquire operator, 1847193267Sjkimas this can already be used to acquire a mutex multiple times by the same 1848193267Sjkimthread. BZ 8066. With assistance from Alexey Starikovskiy. 1849167802Sjkim 1850193267SjkimFixed a problem where invalid objects could be referenced in the AML 1851193267SjkimInterpreter after error conditions. During operand evaluation, ensure that 1852193267Sjkimthe internal "Return Object" field is cleared on error and only valid 1853193267Sjkimpointers are stored there. Caused occasional access to deleted objects that 1854193267Sjkimresulted in "large reference count" warning messages. Valery Podrezov. 1855167802Sjkim 1856193267SjkimFixed a problem where an AE_STACK_OVERFLOW internal exception could occur on 1857193267Sjkimdeeply nested control method invocations. BZ 7873, local BZ 487. Valery 1858193267SjkimPodrezov. 1859167802Sjkim 1860193267SjkimFixed an internal problem with the handling of result objects on the 1861193267Sjkiminterpreter result stack. BZ 7872. Valery Podrezov. 1862167802Sjkim 1863193267SjkimRemoved obsolete code that handled the case where AML_NAME_OP is the target 1864193267Sjkimof a reference (Reference.Opcode). This code was no longer necessary. BZ 1865193267Sjkim7874. Valery Podrezov. 1866167802Sjkim 1867193267SjkimRemoved obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a 1868193267Sjkimremnant from the previously discontinued 16-bit support. 1869167802Sjkim 1870193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1871193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1872193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1873193267Sjkima much larger code and data size. 1874167802Sjkim 1875167802Sjkim Previous Release: 1876167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1877167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1878167802Sjkim Current Release: 1879167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1880167802Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 1881167802Sjkim 1882167802Sjkim---------------------------------------- 1883167802Sjkim26 January 2007. Summary of changes for version 20070126: 1884167802Sjkim 1885167802Sjkim1) ACPI CA Core Subsystem: 1886167802Sjkim 1887193267SjkimAdded the 2007 copyright to all module headers and signons. This affects 1888193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1889193267Sjkimthe utilities. 1890167802Sjkim 1891193267SjkimImplemented a fix for an incorrect parameter passed to AcpiTbDeleteTable 1892193267Sjkimduring a table load. A bad pointer was passed in the case where the DSDT is 1893193267Sjkimoverridden, causing a fault in this case. 1894167802Sjkim 1895193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1896193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1897193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1898193267Sjkima much larger code and data size. 1899167802Sjkim 1900167802Sjkim Previous Release: 1901167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1902167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1903167802Sjkim Current Release: 1904167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1905167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1906167802Sjkim 1907167802Sjkim---------------------------------------- 1908167802Sjkim15 December 2006. Summary of changes for version 20061215: 1909167802Sjkim 1910167802Sjkim1) ACPI CA Core Subsystem: 1911167802Sjkim 1912193267SjkimSupport for 16-bit ACPICA has been completely removed since it is no longer 1913193267Sjkimnecessary and it clutters the code. All 16-bit macros, types, and 1914193267Sjkimconditional compiles have been removed, cleaning up and simplifying the code 1915193267Sjkimacross the entire subsystem. DOS support is no longer needed since the 1916193267Sjkimbootable Linux firmware kit is now available. 1917167802Sjkim 1918193267SjkimThe handler for the Global Lock is now removed during AcpiTerminate to 1919193267Sjkimenable a clean subsystem restart, via the implementation of the 1920193267SjkimAcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz, 1921193267SjkimHP) 1922167802Sjkim 1923193267SjkimImplemented enhancements to the multithreading support within the debugger 1924193267Sjkimto enable improved multithreading debugging and evaluation of the subsystem. 1925167802Sjkim(Valery Podrezov) 1926167802Sjkim 1927193267SjkimDebugger: Enhanced the Statistics/Memory command to emit the total (maximum) 1928193267Sjkimmemory used during the execution, as well as the maximum memory consumed by 1929193267Sjkimeach of the various object types. (Valery Podrezov) 1930167802Sjkim 1931193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1932193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1933193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1934193267Sjkima much larger code and data size. 1935193267Sjkim 1936167802Sjkim Previous Release: 1937167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 1938167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 1939167802Sjkim Current Release: 1940167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1941167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1942167802Sjkim 1943167802Sjkim 1944167802Sjkim2) iASL Compiler/Disassembler and Tools: 1945167802Sjkim 1946193267SjkimAcpiExec: Implemented a new option (-m) to display full memory use 1947193267Sjkimstatistics upon subsystem/program termination. (Valery Podrezov) 1948167802Sjkim 1949167802Sjkim---------------------------------------- 1950167802Sjkim09 November 2006. Summary of changes for version 20061109: 1951167802Sjkim 1952167802Sjkim1) ACPI CA Core Subsystem: 1953167802Sjkim 1954193267SjkimOptimized the Load ASL operator in the case where the source operand is an 1955193267Sjkimoperation region. Simply map the operation region memory, instead of 1956193267Sjkimperforming a bytewise read. (Region must be of type SystemMemory, see 1957193267Sjkimbelow.) 1958167802Sjkim 1959193267SjkimFixed the Load ASL operator for the case where the source operand is a 1960193267Sjkimregion field. A buffer object is also allowed as the source operand. BZ 480 1961167802Sjkim 1962193267SjkimFixed a problem where the Load ASL operator allowed the source operand to be 1963193267Sjkiman operation region of any type. It is now restricted to regions of type 1964193267SjkimSystemMemory, as per the ACPI specification. BZ 481 1965167802Sjkim 1966193267SjkimAdditional cleanup and optimizations for the new Table Manager code. 1967167802Sjkim 1968193267SjkimAcpiEnable will now fail if all of the required ACPI tables are not loaded 1969193267Sjkim(FADT, FACS, DSDT). BZ 477 1970167802Sjkim 1971193267SjkimAdded #pragma pack(8/4) to acobject.h to ensure that the structures in this 1972193267Sjkimheader are always compiled as aligned. The ACPI_OPERAND_OBJECT has been 1973193267Sjkimmanually optimized to be aligned and will not work if it is byte-packed. 1974167802Sjkim 1975193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1976193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1977193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1978193267Sjkima much larger code and data size. 1979167802Sjkim 1980167802Sjkim Previous Release: 1981167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 1982167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 1983167802Sjkim Current Release: 1984167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 1985167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 1986167802Sjkim 1987167802Sjkim 1988167802Sjkim2) iASL Compiler/Disassembler and Tools: 1989167802Sjkim 1990193267SjkimFixed a problem where the presence of the _OSI predefined control method 1991193267Sjkimwithin complex expressions could cause an internal compiler error. 1992167802Sjkim 1993193267SjkimAcpiExec: Implemented full region support for multiple address spaces. 1994193267SjkimSpaceId is now part of the REGION object. BZ 429 1995167802Sjkim 1996167802Sjkim---------------------------------------- 1997167802Sjkim11 October 2006. Summary of changes for version 20061011: 1998167802Sjkim 1999167802Sjkim1) ACPI CA Core Subsystem: 2000167802Sjkim 2001193267SjkimCompleted an AML interpreter performance enhancement for control method 2002193267Sjkimexecution. Previously a 2-pass parse/execution, control methods are now 2003193267Sjkimcompletely parsed and executed in a single pass. This improves overall 2004193267Sjkiminterpreter performance by ~25%, reduces code size, and reduces CPU stack 2005193267Sjkimuse. (Valery Podrezov + interpreter changes in version 20051202 that 2006193267Sjkimeliminated namespace loading during the pass one parse.) 2007167802Sjkim 2008193267SjkimImplemented _CID support for PCI Root Bridge detection. If the _HID does not 2009193267Sjkimmatch the predefined PCI Root Bridge IDs, the _CID list (if present) is now 2010193267Sjkimobtained and also checked for an ID match. 2011167802Sjkim 2012193267SjkimImplemented additional support for the PCI _ADR execution: upsearch until a 2013193267Sjkimdevice scope is found before executing _ADR. This allows PCI_Config 2014193267Sjkimoperation regions to be declared locally within control methods underneath 2015193267SjkimPCI device objects. 2016167802Sjkim 2017193267SjkimFixed a problem with a possible race condition between threads executing 2018193267SjkimAcpiWalkNamespace and the AML interpreter. This condition was removed by 2019193267Sjkimmodifying AcpiWalkNamespace to (by default) ignore all temporary namespace 2020193267Sjkimentries created during any concurrent control method execution. An 2021193267Sjkimadditional namespace race condition is known to exist between 2022193267SjkimAcpiWalkNamespace and the Load/Unload ASL operators and is still under 2023193267Sjkiminvestigation. 2024167802Sjkim 2025193267SjkimRestructured the AML ParseLoop function, breaking it into several 2026193267Sjkimsubfunctions in order to reduce CPU stack use and improve maintainability. 2027193267Sjkim(Mikhail Kouzmich) 2028167802Sjkim 2029193267SjkimAcpiGetHandle: Fix for parameter validation to detect invalid combinations 2030193267Sjkimof prefix handle and pathname. BZ 478 2031167802Sjkim 2032193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2033193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2034193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2035193267Sjkima much larger code and data size. 2036167802Sjkim 2037167802Sjkim Previous Release: 2038167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2039167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2040167802Sjkim Current Release: 2041167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2042167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2043167802Sjkim 2044167802Sjkim2) iASL Compiler/Disassembler and Tools: 2045167802Sjkim 2046193267SjkimPorted the -g option (get local ACPI tables) to the new ACPICA Table Manager 2047193267Sjkimto restore original behavior. 2048167802Sjkim 2049167802Sjkim---------------------------------------- 2050167802Sjkim27 September 2006. Summary of changes for version 20060927: 2051167802Sjkim 2052167802Sjkim1) ACPI CA Core Subsystem: 2053167802Sjkim 2054193267SjkimRemoved the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. 2055193267SjkimThese functions now use a spinlock for mutual exclusion and the interrupt 2056193267Sjkimlevel indication flag is not needed. 2057167802Sjkim 2058193267SjkimFixed a problem with the Global Lock where the lock could appear to be 2059193267Sjkimobtained before it is actually obtained. The global lock semaphore was 2060193267Sjkiminadvertently created with one unit instead of zero units. (BZ 464) Fiodor 2061193267SjkimSuietov. 2062167802Sjkim 2063193267SjkimFixed a possible memory leak and fault in AcpiExResolveObjectToValue during 2064193267Sjkima read from a buffer or region field. (BZ 458) Fiodor Suietov. 2065167802Sjkim 2066193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2067193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2068193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2069193267Sjkima much larger code and data size. 2070167802Sjkim 2071167802Sjkim Previous Release: 2072167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2073167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2074167802Sjkim Current Release: 2075167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2076167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2077167802Sjkim 2078167802Sjkim 2079167802Sjkim2) iASL Compiler/Disassembler and Tools: 2080167802Sjkim 2081193267SjkimFixed a compilation problem with the pre-defined Resource Descriptor field 2082193267Sjkimnames where an "object does not exist" error could be incorrectly generated 2083193267Sjkimif the parent ResourceTemplate pathname places the template within a 2084193267Sjkimdifferent namespace scope than the current scope. (BZ 7212) 2085167802Sjkim 2086193267SjkimFixed a problem where the compiler could hang after syntax errors detected 2087193267Sjkimin an ElseIf construct. (BZ 453) 2088167802Sjkim 2089193267SjkimFixed a problem with the AmlFilename parameter to the DefinitionBlock() 2090193267Sjkimoperator. An incorrect output filename was produced when this parameter was 2091193267Sjkima null string (""). Now, the original input filename is used as the AML 2092193267Sjkimoutput filename, with an ".aml" extension. 2093167802Sjkim 2094193267SjkimImplemented a generic batch command mode for the AcpiExec utility (execute 2095193267Sjkimany AML debugger command) (Valery Podrezov). 2096167802Sjkim 2097167802Sjkim---------------------------------------- 2098167802Sjkim12 September 2006. Summary of changes for version 20060912: 2099167802Sjkim 2100167802Sjkim1) ACPI CA Core Subsystem: 2101167802Sjkim 2102193267SjkimEnhanced the implementation of the "serialized mode" of the interpreter 2103193267Sjkim(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 2104193267Sjkimspecified, instead of creating a serialization semaphore per control method, 2105193267Sjkimthe interpreter lock is simply no longer released before a blocking 2106193267Sjkimoperation during control method execution. This effectively makes the AML 2107193267SjkimInterpreter single-threaded. The overhead of a semaphore per-method is 2108193267Sjkimeliminated. 2109167802Sjkim 2110193267SjkimFixed a regression where an error was no longer emitted if a control method 2111193267Sjkimattempts to create 2 objects of the same name. This once again returns 2112193267SjkimAE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that 2113193267Sjkimwill dynamically serialize the control method to possible prevent future 2114193267Sjkimerrors. (BZ 440) 2115167802Sjkim 2116193267SjkimIntegrated a fix for a problem with PCI Express HID detection in the PCI 2117193267SjkimConfig Space setup procedure. (BZ 7145) 2118167802Sjkim 2119193267SjkimMoved all FADT-related functions to a new file, tbfadt.c. Eliminated the 2120193267SjkimAcpiHwInitialize function - the FADT registers are now validated when the 2121193267Sjkimtable is loaded. 2122167802Sjkim 2123193267SjkimAdded two new warnings during FADT verification - 1) if the FADT is larger 2124193267Sjkimthan the largest known FADT version, and 2) if there is a mismatch between a 2125193267Sjkim32-bit block address and the 64-bit X counterpart (when both are non-zero.) 2126167802Sjkim 2127193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2128193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2129193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2130193267Sjkima much larger code and data size. 2131167802Sjkim 2132167802Sjkim Previous Release: 2133167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2134167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2135167802Sjkim Current Release: 2136167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2137167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2138167802Sjkim 2139167802Sjkim 2140167802Sjkim2) iASL Compiler/Disassembler and Tools: 2141167802Sjkim 2142193267SjkimFixed a problem with the implementation of the Switch() operator where the 2143193267Sjkimtemporary variable was declared too close to the actual Switch, instead of 2144193267Sjkimat method level. This could cause a problem if the Switch() operator is 2145193267Sjkimwithin a while loop, causing an error on the second iteration. (BZ 460) 2146167802Sjkim 2147193267SjkimDisassembler - fix for error emitted for unknown type for target of scope 2148193267Sjkimoperator. Now, ignore it and continue. 2149167802Sjkim 2150193267SjkimDisassembly of an FADT now verifies the input FADT and reports any errors 2151193267Sjkimfound. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs. 2152167802Sjkim 2153193267SjkimDisassembly of raw data buffers with byte initialization data now prefixes 2154193267Sjkimeach output line with the current buffer offset. 2155167802Sjkim 2156193267SjkimDisassembly of ASF! table now includes all variable-length data fields at 2157193267Sjkimthe end of some of the subtables. 2158167802Sjkim 2159193267SjkimThe disassembler now emits a comment if a buffer appears to be a 2160193267SjkimResourceTemplate, but cannot be disassembled as such because the EndTag does 2161193267Sjkimnot appear at the very end of the buffer. 2162167802Sjkim 2163193267SjkimAcpiExec - Added the "-t" command line option to enable the serialized mode 2164193267Sjkimof the AML interpreter. 2165167802Sjkim 2166167802Sjkim---------------------------------------- 2167167802Sjkim31 August 2006. Summary of changes for version 20060831: 2168167802Sjkim 2169167802Sjkim1) ACPI CA Core Subsystem: 2170167802Sjkim 2171167802SjkimMiscellaneous fixes for the Table Manager: 2172193267Sjkim- Correctly initialize internal common FADT for all 64-bit "X" fields 2173167802Sjkim- Fixed a couple table mapping issues during table load 2174167802Sjkim- Fixed a couple alignment issues for IA64 2175167802Sjkim- Initialize input array to zero in AcpiInitializeTables 2176193267Sjkim- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader, 2177193267SjkimAcpiGetTableByIndex 2178167802Sjkim 2179193267SjkimChange for GPE support: when a "wake" GPE is received, all wake GPEs are now 2180193267Sjkimimmediately disabled to prevent the waking GPE from firing again and to 2181193267Sjkimprevent other wake GPEs from interrupting the wake process. 2182167802Sjkim 2183193267SjkimAdded the AcpiGpeCount global that tracks the number of processed GPEs, to 2184193267Sjkimbe used for debugging systems with a large number of ACPI interrupts. 2185167802Sjkim 2186193267SjkimImplemented support for the "DMAR" ACPI table (DMA Redirection Table) in 2187193267Sjkimboth the ACPICA headers and the disassembler. 2188167802Sjkim 2189193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2190193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2191193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2192193267Sjkima much larger code and data size. 2193167802Sjkim 2194167802Sjkim Previous Release: 2195167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2196167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2197167802Sjkim Current Release: 2198167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2199167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2200167802Sjkim 2201167802Sjkim 2202167802Sjkim2) iASL Compiler/Disassembler and Tools: 2203167802Sjkim 2204167802SjkimDisassembler support for the DMAR ACPI table. 2205167802Sjkim 2206167802Sjkim---------------------------------------- 2207167802Sjkim23 August 2006. Summary of changes for version 20060823: 2208167802Sjkim 2209167802Sjkim1) ACPI CA Core Subsystem: 2210167802Sjkim 2211193267SjkimThe Table Manager component has been completely redesigned and 2212193267Sjkimreimplemented. The new design is much simpler, and reduces the overall code 2213193267Sjkimand data size of the kernel-resident ACPICA by approximately 5%. Also, it is 2214193267Sjkimnow possible to obtain the ACPI tables very early during kernel 2215193267Sjkiminitialization, even before dynamic memory management is initialized. 2216193267Sjkim(Alexey Starikovskiy, Fiodor Suietov, Bob Moore) 2217167802Sjkim 2218167802SjkimObsolete ACPICA interfaces: 2219167802Sjkim 2220193267Sjkim- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init 2221193267Sjkimtime). 2222167802Sjkim- AcpiLoadTable: Not needed. 2223167802Sjkim- AcpiUnloadTable: Not needed. 2224167802Sjkim 2225167802SjkimNew ACPICA interfaces: 2226167802Sjkim 2227193267Sjkim- AcpiInitializeTables: Must be called before the table manager can be used. 2228193267Sjkim- AcpiReallocateRootTable: Used to transfer the root table to dynamically 2229193267Sjkimallocated memory after it becomes available. 2230193267Sjkim- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables 2231193267Sjkimin the RSDT/XSDT. 2232167802Sjkim 2233167802SjkimOther ACPICA changes: 2234167802Sjkim 2235193267Sjkim- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use 2236193267SjkimAcpiOsUnmapMemory to free this mapping. 2237193267Sjkim- AcpiGetTable returns the actual mapped table. The mapping is managed 2238193267Sjkiminternally and must not be deleted by the caller. Use of this interface 2239193267Sjkimcauses no additional dynamic memory allocation. 2240193267Sjkim- AcpiFindRootPointer: Support for physical addressing has been eliminated, 2241193267Sjkimit appeared to be unused. 2242193267Sjkim- The interface to AcpiOsMapMemory has changed to be consistent with the 2243193267Sjkimother allocation interfaces. 2244193267Sjkim- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary 2245193267Sjkimparameters. 2246193267Sjkim- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64- 2247193267Sjkimbit platforms. Was previously 64 bits on all platforms. 2248193267Sjkim- The interface to the ACPI Global Lock acquire/release macros have changed 2249193267Sjkimslightly since ACPICA no longer keeps a local copy of the FACS with a 2250193267Sjkimconstructed pointer to the actual global lock. 2251167802Sjkim 2252167802SjkimPorting to the new table manager: 2253167802Sjkim 2254193267Sjkim- AcpiInitializeTables: Must be called once, and can be called anytime 2255193267Sjkimduring the OS initialization process. It allows the host to specify an area 2256193267Sjkimof memory to be used to store the internal version of the RSDT/XSDT (root 2257193267Sjkimtable). This allows the host to access ACPI tables before memory management 2258193267Sjkimis initialized and running. 2259193267Sjkim- AcpiReallocateRootTable: Can be called after memory management is running 2260193267Sjkimto copy the root table to a dynamically allocated array, freeing up the 2261193267Sjkimscratch memory specified in the call to AcpiInitializeTables. 2262193267Sjkim- AcpiSubsystemInitialize: This existing interface is independent of the 2263193267SjkimTable Manager, and does not have to be called before the Table Manager can 2264193267Sjkimbe used, it only must be called before the rest of ACPICA can be used. 2265193267Sjkim- ACPI Tables: Some changes have been made to the names and structure of the 2266193267Sjkimactbl.h and actbl1.h header files and may require changes to existing code. 2267193267SjkimFor example, bitfields have been completely removed because of their lack of 2268193267Sjkimportability across C compilers. 2269193267Sjkim- Update interfaces to the Global Lock acquire/release macros if local 2270193267Sjkimversions are used. (see acwin.h) 2271167802Sjkim 2272167802SjkimObsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c 2273167802Sjkim 2274167802SjkimNew files: tbfind.c 2275167802Sjkim 2276193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2277193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2278193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2279193267Sjkima much larger code and data size. 2280167802Sjkim 2281167802Sjkim Previous Release: 2282167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2283167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2284167802Sjkim Current Release: 2285167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2286167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2287167802Sjkim 2288167802Sjkim 2289167802Sjkim2) iASL Compiler/Disassembler and Tools: 2290167802Sjkim 2291167802SjkimNo changes for this release. 2292167802Sjkim 2293167802Sjkim---------------------------------------- 2294167802Sjkim21 July 2006. Summary of changes for version 20060721: 2295167802Sjkim 2296167802Sjkim1) ACPI CA Core Subsystem: 2297167802Sjkim 2298193267SjkimThe full source code for the ASL test suite used to validate the iASL 2299193267Sjkimcompiler and the ACPICA core subsystem is being released with the ACPICA 2300193267Sjkimsource for the first time. The source is contained in a separate package and 2301193267Sjkimconsists of over 1100 files that exercise all ASL/AML operators. The package 2302193267Sjkimshould appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor 2303167802SjkimSuietov) 2304167802Sjkim 2305193267SjkimCompleted a new design and implementation for support of the ACPI Global 2306193267SjkimLock. On the OS side, the global lock is now treated as a standard AML 2307193267Sjkimmutex. Previously, multiple OS threads could "acquire" the global lock 2308193267Sjkimsimultaneously. However, this could cause the BIOS to be starved out of the 2309193267Sjkimlock - especially in cases such as the Embedded Controller driver where 2310193267Sjkimthere is a tight coupling between the OS and the BIOS. 2311167802Sjkim 2312193267SjkimImplemented an optimization for the ACPI Global Lock interrupt mechanism. 2313193267SjkimThe Global Lock interrupt handler no longer queues the execution of a 2314193267Sjkimseparate thread to signal the global lock semaphore. Instead, the semaphore 2315193267Sjkimis signaled directly from the interrupt handler. 2316167802Sjkim 2317193267SjkimImplemented support within the AML interpreter for package objects that 2318193267Sjkimcontain a larger AML length (package list length) than the package element 2319193267Sjkimcount. In this case, the length of the package is truncated to match the 2320193267Sjkimpackage element count. Some BIOS code apparently modifies the package length 2321193267Sjkimon the fly, and this change supports this behavior. Provides compatibility 2322193267Sjkimwith the MS AML interpreter. (With assistance from Fiodor Suietov) 2323167802Sjkim 2324193267SjkimImplemented a temporary fix for the BankValue parameter of a Bank Field to 2325193267Sjkimsupport all constant values, now including the Zero and One opcodes. 2326193267SjkimEvaluation of this parameter must eventually be converted to a full TermArg 2327193267Sjkimevaluation. A not-implemented error is now returned (temporarily) for non- 2328193267Sjkimconstant values for this parameter. 2329167802Sjkim 2330167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2331193267Sjkim- Fix for premature object deletion after CopyObject on Operation Region (BZ 2332193267Sjkim350) 2333167802Sjkim 2334193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2335193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2336193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2337193267Sjkima much larger code and data size. 2338167802Sjkim 2339167802Sjkim Previous Release: 2340167802Sjkim Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total 2341167802Sjkim Debug Version: 160.9K Code, 65.1K Data, 226.0K Total 2342167802Sjkim Current Release: 2343167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2344167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2345167802Sjkim 2346167802Sjkim 2347167802Sjkim2) iASL Compiler/Disassembler and Tools: 2348167802Sjkim 2349167802SjkimNo changes for this release. 2350167802Sjkim 2351167802Sjkim---------------------------------------- 2352167802Sjkim07 July 2006. Summary of changes for version 20060707: 2353167802Sjkim 2354167802Sjkim1) ACPI CA Core Subsystem: 2355167802Sjkim 2356193267SjkimAdded the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers 2357193267Sjkimthat do not allow the initialization of address pointers within packed 2358193267Sjkimstructures - even though the hardware itself may support misaligned 2359193267Sjkimtransfers. Some of the debug data structures are packed by default to 2360193267Sjkimminimize size. 2361167802Sjkim 2362193267SjkimAdded an error message for the case where AcpiOsGetThreadId() returns zero. 2363193267SjkimA non-zero value is required by the core ACPICA code to ensure the proper 2364193267Sjkimoperation of AML mutexes and recursive control methods. 2365167802Sjkim 2366193267SjkimThe DSDT is now the only ACPI table that determines whether the AML 2367193267Sjkiminterpreter is in 32-bit or 64-bit mode. Not really a functional change, but 2368193267Sjkimthe hooks for per-table 32/64 switching have been removed from the code. A 2369193267Sjkimclarification to the ACPI specification is forthcoming in ACPI 3.0B. 2370167802Sjkim 2371193267SjkimFixed a possible leak of an OwnerID in the error path of 2372193267SjkimAcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID 2373193267Sjkimdeletion to a single place in AcpiTbUninstallTable to correct possible leaks 2374193267Sjkimwhen using the AcpiTbDeleteTablesByType interface (with assistance from 2375193267SjkimLance Ortiz.) 2376167802Sjkim 2377193267SjkimFixed a problem with Serialized control methods where the semaphore 2378193267Sjkimassociated with the method could be over-signaled after multiple method 2379193267Sjkiminvocations. 2380167802Sjkim 2381193267SjkimFixed two issues with the locking of the internal namespace data structure. 2382193267SjkimBoth the Unload() operator and AcpiUnloadTable interface now lock the 2383193267Sjkimnamespace during the namespace deletion associated with the table unload 2384193267Sjkim(with assistance from Linn Crosetto.) 2385167802Sjkim 2386167802SjkimFixed problem reports (Valery Podrezov) integrated: 2387193267Sjkim- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426) 2388167802Sjkim 2389167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2390167802Sjkim- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) 2391193267Sjkim- On Address Space handler deletion, needless deactivation call (BZ 374) 2392193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) 2393193267Sjkim- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone 2394193267Sjkim(BZ 376) 2395193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) 2396167802Sjkim- Minimum Length of RSDT should be validated (BZ 379) 2397193267Sjkim- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no 2398193267SjkimHandler (BZ (380) 2399193267Sjkim- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded 2400193267Sjkim(BZ 381) 2401167802Sjkim 2402193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2403193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2404193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2405193267Sjkima much larger code and data size. 2406167802Sjkim 2407167802Sjkim Previous Release: 2408167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2409167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2410167802Sjkim Current Release: 2411167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2412167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2413167802Sjkim 2414167802Sjkim 2415167802Sjkim2) iASL Compiler/Disassembler and Tools: 2416167802Sjkim 2417167802SjkimFixed problem reports: 2418193267SjkimCompiler segfault when ASL contains a long (>1024) String declaration (BZ 2419193267Sjkim436) 2420167802Sjkim 2421167802Sjkim---------------------------------------- 2422167802Sjkim23 June 2006. Summary of changes for version 20060623: 2423167802Sjkim 2424167802Sjkim1) ACPI CA Core Subsystem: 2425167802Sjkim 2426193267SjkimImplemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This 2427193267Sjkimallows the type to be customized to the host OS for improved efficiency 2428193267Sjkim(since a spinlock is usually a very small object.) 2429167802Sjkim 2430193267SjkimImplemented support for "ignored" bits in the ACPI registers. According to 2431193267Sjkimthe ACPI specification, these bits should be preserved when writing the 2432193267Sjkimregisters via a read/modify/write cycle. There are 3 bits preserved in this 2433193267Sjkimmanner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. 2434167802Sjkim 2435193267SjkimImplemented the initial deployment of new OSL mutex interfaces. Since some 2436193267Sjkimhost operating systems have separate mutex and semaphore objects, this 2437193267Sjkimfeature was requested. The base code now uses mutexes (and the new mutex 2438193267Sjkiminterfaces) wherever a binary semaphore was used previously. However, for 2439193267Sjkimthe current release, the mutex interfaces are defined as macros to map them 2440193267Sjkimto the existing semaphore interfaces. Therefore, no OSL changes are required 2441193267Sjkimat this time. (See acpiosxf.h) 2442167802Sjkim 2443193267SjkimFixed several problems with the support for the control method SyncLevel 2444193267Sjkimparameter. The SyncLevel now works according to the ACPI specification and 2445193267Sjkimin concert with the Mutex SyncLevel parameter, since the current SyncLevel 2446193267Sjkimis a property of the executing thread. Mutual exclusion for control methods 2447193267Sjkimis now implemented with a mutex instead of a semaphore. 2448167802Sjkim 2449193267SjkimFixed three instances of the use of the C shift operator in the bitfield 2450193267Sjkimsupport code (exfldio.c) to avoid the use of a shift value larger than the 2451193267Sjkimtarget data width. The behavior of C compilers is undefined in this case and 2452193267Sjkimcan cause unpredictable results, and therefore the case must be detected and 2453193267Sjkimavoided. (Fiodor Suietov) 2454167802Sjkim 2455193267SjkimAdded an info message whenever an SSDT or OEM table is loaded dynamically 2456193267Sjkimvia the Load() or LoadTable() ASL operators. This should improve debugging 2457193267Sjkimcapability since it will show exactly what tables have been loaded (beyond 2458193267Sjkimthe tables present in the RSDT/XSDT.) 2459167802Sjkim 2460193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2461193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2462193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2463193267Sjkima much larger code and data size. 2464167802Sjkim 2465167802Sjkim Previous Release: 2466167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 2467167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 2468167802Sjkim Current Release: 2469167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2470167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2471167802Sjkim 2472167802Sjkim 2473167802Sjkim2) iASL Compiler/Disassembler and Tools: 2474167802Sjkim 2475167802SjkimNo changes for this release. 2476167802Sjkim 2477167802Sjkim---------------------------------------- 2478167802Sjkim08 June 2006. Summary of changes for version 20060608: 2479167802Sjkim 2480167802Sjkim1) ACPI CA Core Subsystem: 2481167802Sjkim 2482193267SjkimConverted the locking mutex used for the ACPI hardware to a spinlock. This 2483193267Sjkimchange should eliminate all problems caused by attempting to acquire a 2484193267Sjkimsemaphore at interrupt level, and it means that all ACPICA external 2485193267Sjkiminterfaces that directly access the ACPI hardware can be safely called from 2486193267Sjkiminterrupt level. OSL code that implements the semaphore interfaces should be 2487193267Sjkimable to eliminate any workarounds for being called at interrupt level. 2488167802Sjkim 2489193267SjkimFixed a regression introduced in 20060526 where the ACPI device 2490193267Sjkiminitialization could be prematurely aborted with an AE_NOT_FOUND if a device 2491193267Sjkimdid not have an optional _INI method. 2492167802Sjkim 2493193267SjkimFixed an IndexField issue where a write to the Data Register should be 2494193267Sjkimlimited in size to the AccessSize (width) of the IndexField itself. (BZ 433, 2495193267SjkimFiodor Suietov) 2496167802Sjkim 2497167802SjkimFixed problem reports (Valery Podrezov) integrated: 2498193267Sjkim- Allow store of ThermalZone objects to Debug object (BZ 5369/5370) 2499167802Sjkim 2500167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2501193267Sjkim- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364) 2502167802Sjkim 2503193267SjkimRemoved four global mutexes that were obsolete and were no longer being 2504193267Sjkimused. 2505167802Sjkim 2506193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2507193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2508193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2509193267Sjkima much larger code and data size. 2510167802Sjkim 2511167802Sjkim Previous Release: 2512167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 2513167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 2514167802Sjkim Current Release: 2515167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 2516167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 2517167802Sjkim 2518167802Sjkim 2519167802Sjkim2) iASL Compiler/Disassembler and Tools: 2520167802Sjkim 2521193267SjkimFixed a fault when using -g option (get tables from registry) on Windows 2522193267Sjkimmachines. 2523167802Sjkim 2524167802SjkimFixed problem reports integrated: 2525193267Sjkim- Generate error if CreateField NumBits parameter is zero. (BZ 405) 2526193267Sjkim- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor 2527193267SjkimSuietov) 2528167802Sjkim- Global table revision override (-r) is ignored (BZ 413) 2529167802Sjkim 2530167802Sjkim---------------------------------------- 2531167802Sjkim26 May 2006. Summary of changes for version 20060526: 2532167802Sjkim 2533167802Sjkim1) ACPI CA Core Subsystem: 2534167802Sjkim 2535193267SjkimRestructured, flattened, and simplified the internal interfaces for 2536193267Sjkimnamespace object evaluation - resulting in smaller code, less CPU stack use, 2537193267Sjkimand fewer interfaces. (With assistance from Mikhail Kouzmich) 2538167802Sjkim 2539193267SjkimFixed a problem with the CopyObject operator where the first parameter was 2540193267Sjkimnot typed correctly for the parser, interpreter, compiler, and disassembler. 2541193267SjkimCaused various errors and unexpected behavior. 2542167802Sjkim 2543193267SjkimFixed a problem where a ShiftLeft or ShiftRight of more than 64 bits 2544193267Sjkimproduced incorrect results with some C compilers. Since the behavior of C 2545193267Sjkimcompilers when the shift value is larger than the datatype width is 2546193267Sjkimapparently not well defined, the interpreter now detects this condition and 2547193267Sjkimsimply returns zero as expected in all such cases. (BZ 395) 2548167802Sjkim 2549167802SjkimFixed problem reports (Valery Podrezov) integrated: 2550193267Sjkim- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329) 2551193267Sjkim- Allow interpreter to handle nested method declarations (BZ 5361) 2552167802Sjkim 2553167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2554193267Sjkim- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355) 2555193267Sjkim- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356) 2556193267Sjkim- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357) 2557193267Sjkim- Resource Manager should return AE_TYPE for non-device objects (BZ 358) 2558167802Sjkim- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) 2559193267Sjkim- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360) 2560167802Sjkim- Incomplete cleanup branch in AcpiPsParseAml (BZ 361) 2561167802Sjkim- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362) 2562193267Sjkim- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) 2563193267Sjkim- Status of the Global Initialization Handler call not used (BZ 366) 2564193267Sjkim- Incorrect object parameter to Global Initialization Handler (BZ 367) 2565167802Sjkim 2566193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2567193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2568193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2569193267Sjkima much larger code and data size. 2570167802Sjkim 2571167802Sjkim Previous Release: 2572167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 2573167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 2574167802Sjkim Current Release: 2575167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 2576167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 2577167802Sjkim 2578167802Sjkim 2579167802Sjkim2) iASL Compiler/Disassembler and Tools: 2580167802Sjkim 2581193267SjkimModified the parser to allow the names IO, DMA, and IRQ to be used as 2582193267Sjkimnamespace identifiers with no collision with existing resource descriptor 2583193267Sjkimmacro names. This provides compatibility with other ASL compilers and is 2584193267Sjkimmost useful for disassembly/recompilation of existing tables without parse 2585167802Sjkimerrors. (With assistance from Thomas Renninger) 2586167802Sjkim 2587193267SjkimDisassembler: fixed an incorrect disassembly problem with the 2588193267SjkimDataTableRegion and CopyObject operators. Fixed a possible fault during 2589193267Sjkimdisassembly of some Alias operators. 2590167802Sjkim 2591167802Sjkim---------------------------------------- 2592167802Sjkim12 May 2006. Summary of changes for version 20060512: 2593167802Sjkim 2594167802Sjkim1) ACPI CA Core Subsystem: 2595167802Sjkim 2596193267SjkimReplaced the AcpiOsQueueForExecution interface with a new interface named 2597193267SjkimAcpiOsExecute. The major difference is that the new interface does not have 2598193267Sjkima Priority parameter, this appeared to be useless and has been replaced by a 2599193267SjkimType parameter. The Type tells the host what type of execution is being 2600193267Sjkimrequested, such as global lock handler, notify handler, GPE handler, etc. 2601193267SjkimThis allows the host to queue and execute the request as appropriate for the 2602193267Sjkimrequest type, possibly using different work queues and different priorities 2603193267Sjkimfor the various request types. This enables fixes for multithreading 2604193267Sjkimdeadlock problems such as BZ #5534, and will require changes to all existing 2605193267SjkimOS interface layers. (Alexey Starikovskiy and Bob Moore) 2606167802Sjkim 2607193267SjkimFixed a possible memory leak associated with the support for the so-called 2608193267Sjkim"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor 2609193267SjkimSuietov) 2610167802Sjkim 2611193267SjkimFixed a problem with the Load() operator where a table load from an 2612193267Sjkimoperation region could overwrite an internal table buffer by up to 7 bytes 2613193267Sjkimand cause alignment faults on IPF systems. (With assistance from Luming Yu) 2614167802Sjkim 2615193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2616193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2617193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2618193267Sjkima much larger code and data size. 2619167802Sjkim 2620167802Sjkim Previous Release: 2621167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 2622167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 2623167802Sjkim Current Release: 2624167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 2625167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 2626167802Sjkim 2627167802Sjkim 2628167802Sjkim 2629167802Sjkim2) iASL Compiler/Disassembler and Tools: 2630167802Sjkim 2631193267SjkimDisassembler: Implemented support to cross reference the internal namespace 2632193267Sjkimand automatically generate ASL External() statements for symbols not defined 2633193267Sjkimwithin the current table being disassembled. This will simplify the 2634193267Sjkimdisassembly and recompilation of interdependent tables such as SSDTs since 2635193267Sjkimthese statements will no longer have to be added manually. 2636167802Sjkim 2637193267SjkimDisassembler: Implemented experimental support to automatically detect 2638193267Sjkiminvocations of external control methods and generate appropriate External() 2639193267Sjkimstatements. This is problematic because the AML cannot be correctly parsed 2640193267Sjkimuntil the number of arguments for each control method is known. Currently, 2641193267Sjkimstandalone method invocations and invocations as the source operand of a 2642193267SjkimStore() statement are supported. 2643167802Sjkim 2644193267SjkimDisassembler: Implemented support for the ASL pseudo-operators LNotEqual, 2645193267SjkimLLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()), 2646193267SjkimLNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code 2647193267Sjkimmore readable and likely closer to the original ASL source. 2648167802Sjkim 2649167802Sjkim---------------------------------------- 2650167802Sjkim21 April 2006. Summary of changes for version 20060421: 2651167802Sjkim 2652167802Sjkim1) ACPI CA Core Subsystem: 2653167802Sjkim 2654193267SjkimRemoved a device initialization optimization introduced in 20051216 where 2655193267Sjkimthe _STA method was not run unless an _INI was also present for the same 2656193267Sjkimdevice. This optimization could cause problems because it could allow _INI 2657193267Sjkimmethods to be run within a not-present device subtree. (If a not-present 2658193267Sjkimdevice had no _INI, _STA would not be run, the not-present status would not 2659193267Sjkimbe discovered, and the children of the device would be incorrectly 2660167802Sjkimtraversed.) 2661167802Sjkim 2662193267SjkimImplemented a new _STA optimization where namespace subtrees that do not 2663193267Sjkimcontain _INI are identified and ignored during device initialization. 2664193267SjkimSelectively running _STA can significantly improve boot time on large 2665193267Sjkimmachines (with assistance from Len Brown.) 2666167802Sjkim 2667193267SjkimImplemented support for the device initialization case where the returned 2668193267Sjkim_STA flags indicate a device not-present but functioning. In this case, _INI 2669193267Sjkimis not run, but the device children are examined for presence, as per the 2670193267SjkimACPI specification. 2671167802Sjkim 2672193267SjkimImplemented an additional change to the IndexField support in order to 2673193267Sjkimconform to MS behavior. The value written to the Index Register is not 2674193267Sjkimsimply a byte offset, it is a byte offset in units of the access width of 2675193267Sjkimthe parent Index Field. (Fiodor Suietov) 2676167802Sjkim 2677193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateAddress. This 2678193267Sjkiminterface is called during the creation of all AML operation regions, and 2679193267Sjkimallows the host OS to exert control over what addresses it will allow the 2680193267SjkimAML code to access. Operation Regions whose addresses are disallowed will 2681193267Sjkimcause a runtime exception when they are actually accessed (will not affect 2682193267Sjkimor abort table loading.) See oswinxf or osunixxf for an example 2683167802Sjkimimplementation. 2684167802Sjkim 2685193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateInterface. This 2686193267Sjkiminterface allows the host OS to match the various "optional" 2687193267Sjkiminterface/behavior strings for the _OSI predefined control method as 2688193267Sjkimappropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf 2689193267Sjkimfor an example implementation. 2690167802Sjkim 2691193267SjkimRestructured and corrected various problems in the exception handling code 2692193267Sjkimpaths within DsCallControlMethod and DsTerminateControlMethod in dsmethod 2693193267Sjkim(with assistance from Takayoshi Kochi.) 2694167802Sjkim 2695193267SjkimModified the Linux source converter to ignore quoted string literals while 2696193267Sjkimconverting identifiers from mixed to lower case. This will correct problems 2697193267Sjkimwith the disassembler and other areas where such strings must not be 2698193267Sjkimmodified. 2699167802Sjkim 2700193267SjkimThe ACPI_FUNCTION_* macros no longer require quotes around the function 2701193267Sjkimname. This allows the Linux source converter to convert the names, now that 2702193267Sjkimthe converter ignores quoted strings. 2703167802Sjkim 2704193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2705193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2706193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2707193267Sjkima much larger code and data size. 2708193267Sjkim 2709167802Sjkim Previous Release: 2710167802Sjkim 2711167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 2712167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 2713167802Sjkim Current Release: 2714167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 2715167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 2716167802Sjkim 2717167802Sjkim 2718167802Sjkim2) iASL Compiler/Disassembler and Tools: 2719167802Sjkim 2720193267SjkimImplemented 3 new warnings for iASL, and implemented multiple warning levels 2721193267Sjkim(w2 flag). 2722167802Sjkim 2723193267Sjkim1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not 2724193267SjkimWAIT_FOREVER (0xFFFF) and the code does not examine the return value to 2725193267Sjkimcheck for the possible timeout, a warning is issued. 2726167802Sjkim 2727193267Sjkim2) Useless operators: If an ASL operator does not specify an optional target 2728193267Sjkimoperand and it also does not use the function return value from the 2729193267Sjkimoperator, a warning is issued since the operator effectively does nothing. 2730167802Sjkim 2731193267Sjkim3) Unreferenced objects: If a namespace object is created, but never 2732193267Sjkimreferenced, a warning is issued. This is a warning level 2 since there are 2733193267Sjkimcases where this is ok, such as when a secondary table is loaded that uses 2734193267Sjkimthe unreferenced objects. Even so, care is taken to only flag objects that 2735193267Sjkimdon't look like they will ever be used. For example, the reserved methods 2736193267Sjkim(starting with an underscore) are usually not referenced because it is 2737193267Sjkimexpected that the OS will invoke them. 2738167802Sjkim 2739167802Sjkim---------------------------------------- 2740167802Sjkim31 March 2006. Summary of changes for version 20060331: 2741167802Sjkim 2742167802Sjkim1) ACPI CA Core Subsystem: 2743167802Sjkim 2744193267SjkimImplemented header file support for the following additional ACPI tables: 2745193267SjkimASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, 2746193267Sjkimall current and known ACPI tables are now defined in the ACPICA headers and 2747193267Sjkimare available for use by device drivers and other software. 2748167802Sjkim 2749193267SjkimImplemented support to allow tables that contain ACPI names with invalid 2750193267Sjkimcharacters to be loaded. Previously, this would cause the table load to 2751193267Sjkimfail, but since there are several known cases of such tables on existing 2752193267Sjkimmachines, this change was made to enable ACPI support for them. Also, this 2753193267Sjkimmatches the behavior of the Microsoft ACPI implementation. 2754167802Sjkim 2755193267SjkimFixed a couple regressions introduced during the memory optimization in the 2756193267Sjkim20060317 release. The namespace node definition required additional 2757193267Sjkimreorganization and an internal datatype that had been changed to 8-bit was 2758193267Sjkimrestored to 32-bit. (Valery Podrezov) 2759167802Sjkim 2760193267SjkimFixed a problem where a null pointer passed to AcpiUtDeleteGenericState 2761193267Sjkimcould be passed through to AcpiOsReleaseObject which is unexpected. Such 2762193267Sjkimnull pointers are now trapped and ignored, matching the behavior of the 2763193267Sjkimprevious implementation before the deployment of AcpiOsReleaseObject. 2764167802Sjkim(Valery Podrezov, Fiodor Suietov) 2765167802Sjkim 2766193267SjkimFixed a memory mapping leak during the deletion of a SystemMemory operation 2767193267Sjkimregion where a cached memory mapping was not deleted. This became a 2768193267Sjkimnoticeable problem for operation regions that are defined within frequently 2769193267Sjkimused control methods. (Dana Meyers) 2770167802Sjkim 2771193267SjkimReorganized the ACPI table header files into two main files: one for the 2772193267SjkimACPI tables consumed by the ACPICA core, and another for the miscellaneous 2773193267SjkimACPI tables that are consumed by the drivers and other software. The various 2774193267SjkimFADT definitions were merged into one common section and three different 2775193267Sjkimtables (ACPI 1.0, 1.0+, and 2.0) 2776167802Sjkim 2777193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2778193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2779193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2780193267Sjkima much larger code and data size. 2781167802Sjkim 2782167802Sjkim Previous Release: 2783167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 2784167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 2785167802Sjkim Current Release: 2786167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 2787167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 2788167802Sjkim 2789167802Sjkim 2790167802Sjkim2) iASL Compiler/Disassembler and Tools: 2791167802Sjkim 2792193267SjkimDisassembler: Implemented support to decode and format all non-AML ACPI 2793193267Sjkimtables (tables other than DSDTs and SSDTs.) This includes the new tables 2794193267Sjkimadded to the ACPICA headers, therefore all current and known ACPI tables are 2795193267Sjkimsupported. 2796167802Sjkim 2797193267SjkimDisassembler: The change to allow ACPI names with invalid characters also 2798193267Sjkimenables the disassembly of such tables. Invalid characters within names are 2799193267Sjkimchanged to '*' to make the name printable; the iASL compiler will still 2800193267Sjkimgenerate an error for such names, however, since this is an invalid ACPI 2801193267Sjkimcharacter. 2802167802Sjkim 2803193267SjkimImplemented an option for AcpiXtract (-a) to extract all tables found in the 2804193267Sjkiminput file. The default invocation extracts only the DSDTs and SSDTs. 2805167802Sjkim 2806193267SjkimFixed a couple of gcc generation issues for iASL and AcpiExec and added a 2807193267Sjkimmakefile for the AcpiXtract utility. 2808167802Sjkim 2809167802Sjkim---------------------------------------- 2810167802Sjkim17 March 2006. Summary of changes for version 20060317: 2811167802Sjkim 2812167802Sjkim1) ACPI CA Core Subsystem: 2813167802Sjkim 2814193267SjkimImplemented the use of a cache object for all internal namespace nodes. 2815193267SjkimSince there are about 1000 static nodes in a typical system, this will 2816193267Sjkimdecrease memory use for cache implementations that minimize per-allocation 2817193267Sjkimoverhead (such as a slab allocator.) 2818167802Sjkim 2819193267SjkimRemoved the reference count mechanism for internal namespace nodes, since it 2820193267Sjkimwas deemed unnecessary. This reduces the size of each namespace node by 2821193267Sjkimabout 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, 2822193267Sjkimand 32 bytes for the 64-bit case. 2823167802Sjkim 2824193267SjkimOptimized several internal data structures to reduce object size on 64-bit 2825193267Sjkimplatforms by packing data within the 64-bit alignment. This includes the 2826193267Sjkimfrequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static 2827193267Sjkiminstances corresponding to the namespace objects. 2828167802Sjkim 2829193267SjkimAdded two new strings for the predefined _OSI method: "Windows 2001.1 SP1" 2830193267Sjkimand "Windows 2006". 2831167802Sjkim 2832193267SjkimSplit the allocation tracking mechanism out to a separate file, from 2833193267Sjkimutalloc.c to uttrack.c. This mechanism appears to be only useful for 2834193267Sjkimapplication-level code. Kernels may wish to not include uttrack.c in 2835193267Sjkimdistributions. 2836167802Sjkim 2837193267SjkimRemoved all remnants of the obsolete ACPI_REPORT_* macros and the associated 2838193267Sjkimcode. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING 2839193267Sjkimmacros.) 2840167802Sjkim 2841193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 2842193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 2843193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 2844193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 2845193267Sjkimvalues will vary depending on the efficiency of the compiler and the 2846193267Sjkimcompiler options used during generation. 2847167802Sjkim 2848167802Sjkim Previous Release: 2849167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2850167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 2851167802Sjkim Current Release: 2852167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 2853167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 2854167802Sjkim 2855167802Sjkim 2856167802Sjkim2) iASL Compiler/Disassembler and Tools: 2857167802Sjkim 2858193267SjkimImplemented an ANSI C version of the acpixtract utility. This version will 2859193267Sjkimautomatically extract the DSDT and all SSDTs from the input acpidump text 2860193267Sjkimfile and dump the binary output to separate files. It can also display a 2861193267Sjkimsummary of the input file including the headers for each table found and 2862193267Sjkimwill extract any single ACPI table, with any signature. (See 2863167802Sjkimsource/tools/acpixtract) 2864167802Sjkim 2865167802Sjkim---------------------------------------- 2866167802Sjkim10 March 2006. Summary of changes for version 20060310: 2867167802Sjkim 2868167802Sjkim1) ACPI CA Core Subsystem: 2869167802Sjkim 2870193267SjkimTagged all external interfaces to the subsystem with the new 2871193267SjkimACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist 2872193267Sjkimkernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL 2873193267Sjkimmacro. The default definition is NULL. 2874167802Sjkim 2875193267SjkimAdded the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId. 2876193267SjkimThis allows the host to define this as necessary to simplify kernel 2877193267Sjkimintegration. The default definition is ACPI_NATIVE_UINT. 2878167802Sjkim 2879193267SjkimFixed two interpreter problems related to error processing, the deletion of 2880193267Sjkimobjects, and placing invalid pointers onto the internal operator result 2881193267Sjkimstack. BZ 6028, 6151 (Valery Podrezov) 2882167802Sjkim 2883193267SjkimIncreased the reference count threshold where a warning is emitted for large 2884193267Sjkimreference counts in order to eliminate unnecessary warnings on systems with 2885193267Sjkimlarge namespaces (especially 64-bit.) Increased the value from 0x400 to 2886193267Sjkim0x800. 2887167802Sjkim 2888193267SjkimDue to universal disagreement as to the meaning of the 'c' in the calloc() 2889193267Sjkimfunction, the ACPI_MEM_CALLOCATE macro has been renamed to 2890193267SjkimACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'. 2891193267SjkimACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and 2892193267SjkimACPI_FREE. 2893167802Sjkim 2894193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 2895193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 2896193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 2897193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 2898193267Sjkimvalues will vary depending on the efficiency of the compiler and the 2899193267Sjkimcompiler options used during generation. 2900167802Sjkim 2901167802Sjkim Previous Release: 2902167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 2903167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 2904167802Sjkim Current Release: 2905167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2906167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 2907167802Sjkim 2908167802Sjkim 2909167802Sjkim2) iASL Compiler/Disassembler: 2910167802Sjkim 2911193267SjkimDisassembler: implemented support for symbolic resource descriptor 2912193267Sjkimreferences. If a CreateXxxxField operator references a fixed offset within a 2913193267Sjkimresource descriptor, a name is assigned to the descriptor and the offset is 2914193267Sjkimtranslated to the appropriate resource tag and pathname. The addition of 2915193267Sjkimthis support brings the disassembled code very close to the original ASL 2916193267Sjkimsource code and helps eliminate run-time errors when the disassembled code 2917193267Sjkimis modified (and recompiled) in such a way as to invalidate the original 2918193267Sjkimfixed offsets. 2919167802Sjkim 2920193267SjkimImplemented support for a Descriptor Name as the last parameter to the ASL 2921193267SjkimRegister() macro. This parameter was inadvertently left out of the ACPI 2922193267Sjkimspecification, and will be added for ACPI 3.0b. 2923167802Sjkim 2924193267SjkimFixed a problem where the use of the "_OSI" string (versus the full path 2925193267Sjkim"\_OSI") caused an internal compiler error. ("No back ptr to op") 2926167802Sjkim 2927193267SjkimFixed a problem with the error message that occurs when an invalid string is 2928193267Sjkimused for a _HID object (such as one with an embedded asterisk: "*PNP010A".) 2929193267SjkimThe correct message is now displayed. 2930167802Sjkim 2931167802Sjkim---------------------------------------- 2932167802Sjkim17 February 2006. Summary of changes for version 20060217: 2933167802Sjkim 2934167802Sjkim1) ACPI CA Core Subsystem: 2935167802Sjkim 2936193267SjkimImplemented a change to the IndexField support to match the behavior of the 2937193267SjkimMicrosoft AML interpreter. The value written to the Index register is now a 2938193267Sjkimbyte offset, no longer an index based upon the width of the Data register. 2939193267SjkimThis should fix IndexField problems seen on some machines where the Data 2940193267Sjkimregister is not exactly one byte wide. The ACPI specification will be 2941193267Sjkimclarified on this point. 2942167802Sjkim 2943193267SjkimFixed a problem where several resource descriptor types could overrun the 2944193267Sjkiminternal descriptor buffer due to size miscalculation: VendorShort, 2945193267SjkimVendorLong, and Interrupt. This was noticed on IA64 machines, but could 2946193267Sjkimaffect all platforms. 2947167802Sjkim 2948193267SjkimFixed a problem where individual resource descriptors were misaligned within 2949193267Sjkimthe internal buffer, causing alignment faults on IA64 platforms. 2950167802Sjkim 2951193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 2952193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 2953193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 2954193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 2955193267Sjkimvalues will vary depending on the efficiency of the compiler and the 2956193267Sjkimcompiler options used during generation. 2957167802Sjkim 2958167802Sjkim Previous Release: 2959167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2960167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 2961167802Sjkim Current Release: 2962167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 2963167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 2964167802Sjkim 2965167802Sjkim 2966167802Sjkim2) iASL Compiler/Disassembler: 2967167802Sjkim 2968193267SjkimImplemented support for new reserved names: _WDG and _WED are Microsoft 2969193267Sjkimextensions for Windows Instrumentation Management, _TDL is a new ACPI- 2970193267Sjkimdefined method (Throttling Depth Limit.) 2971167802Sjkim 2972193267SjkimFixed a problem where a zero-length VendorShort or VendorLong resource 2973193267Sjkimdescriptor was incorrectly emitted as a descriptor of length one. 2974167802Sjkim 2975167802Sjkim---------------------------------------- 2976167802Sjkim10 February 2006. Summary of changes for version 20060210: 2977167802Sjkim 2978167802Sjkim1) ACPI CA Core Subsystem: 2979167802Sjkim 2980193267SjkimRemoved a couple of extraneous ACPI_ERROR messages that appeared during 2981193267Sjkimnormal execution. These became apparent after the conversion from 2982193267SjkimACPI_DEBUG_PRINT. 2983167802Sjkim 2984193267SjkimFixed a problem where the CreateField operator could hang if the BitIndex or 2985193267SjkimNumBits parameter referred to a named object. (Valery Podrezov, BZ 5359) 2986167802Sjkim 2987193267SjkimFixed a problem where a DeRefOf operation on a buffer object incorrectly 2988193267Sjkimfailed with an exception. This also fixes a couple of related RefOf and 2989193267SjkimDeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387) 2990167802Sjkim 2991193267SjkimFixed a problem where the AE_BUFFER_LIMIT exception was returned instead of 2992193267SjkimAE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ 2993193267Sjkim5480) 2994167802Sjkim 2995193267SjkimImplemented a memory cleanup at the end of the execution of each iteration 2996193267Sjkimof an AML While() loop, preventing the accumulation of outstanding objects. 2997193267Sjkim(Valery Podrezov, BZ 5427) 2998167802Sjkim 2999193267SjkimEliminated a chunk of duplicate code in the object resolution code. (Valery 3000193267SjkimPodrezov, BZ 5336) 3001167802Sjkim 3002167802SjkimFixed several warnings during the 64-bit code generation. 3003167802Sjkim 3004193267SjkimThe AcpiSrc source code conversion tool now inserts one line of whitespace 3005193267Sjkimafter an if() statement that is followed immediately by a comment, improving 3006193267Sjkimreadability of the Linux code. 3007167802Sjkim 3008193267SjkimCode and Data Size: The current and previous library sizes for the core 3009193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3010193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3011193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3012193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3013193267Sjkimand data size. Note that these values will vary depending on the efficiency 3014193267Sjkimof the compiler and the compiler options used during generation. 3015167802Sjkim 3016167802Sjkim Previous Release: 3017167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3018167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3019167802Sjkim Current Release: 3020167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3021167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3022167802Sjkim 3023167802Sjkim 3024167802Sjkim2) iASL Compiler/Disassembler: 3025167802Sjkim 3026193267SjkimFixed a problem with the disassembly of a BankField operator with a complex 3027193267Sjkimexpression for the BankValue parameter. 3028167802Sjkim 3029167802Sjkim---------------------------------------- 3030167802Sjkim27 January 2006. Summary of changes for version 20060127: 3031167802Sjkim 3032167802Sjkim1) ACPI CA Core Subsystem: 3033167802Sjkim 3034193267SjkimImplemented support in the Resource Manager to allow unresolved namestring 3035193267Sjkimreferences within resource package objects for the _PRT method. This support 3036193267Sjkimis in addition to the previously implemented unresolved reference support 3037193267Sjkimwithin the AML parser. If the interpreter slack mode is enabled, these 3038193267Sjkimunresolved references will be passed through to the caller as a NULL package 3039167802Sjkimentry. 3040167802Sjkim 3041193267SjkimImplemented and deployed new macros and functions for error and warning 3042193267Sjkimmessages across the subsystem. These macros are simpler and generate less 3043193267Sjkimcode than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, 3044193267SjkimACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older 3045193267Sjkimmacros remain defined to allow ACPI drivers time to migrate to the new 3046193267Sjkimmacros. 3047167802Sjkim 3048193267SjkimImplemented the ACPI_CPU_FLAGS type to simplify host OS integration of the 3049193267SjkimAcquire/Release Lock OSL interfaces. 3050167802Sjkim 3051193267SjkimFixed a problem where Alias ASL operators are sometimes not correctly 3052193267Sjkimresolved, in both the interpreter and the iASL compiler. 3053167802Sjkim 3054193267SjkimFixed several problems with the implementation of the ConcatenateResTemplate 3055193267SjkimASL operator. As per the ACPI specification, zero length buffers are now 3056193267Sjkimtreated as a single EndTag. One-length buffers always cause a fatal 3057193267Sjkimexception. Non-zero length buffers that do not end with a full 2-byte EndTag 3058167802Sjkimcause a fatal exception. 3059167802Sjkim 3060193267SjkimFixed a possible structure overwrite in the AcpiGetObjectInfo external 3061193267Sjkiminterface. (With assistance from Thomas Renninger) 3062167802Sjkim 3063193267SjkimCode and Data Size: The current and previous library sizes for the core 3064193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3065193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3066193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3067193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3068193267Sjkimand data size. Note that these values will vary depending on the efficiency 3069193267Sjkimof the compiler and the compiler options used during generation. 3070167802Sjkim 3071167802Sjkim Previous Release: 3072167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3073167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3074167802Sjkim Current Release: 3075167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3076167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3077167802Sjkim 3078167802Sjkim 3079167802Sjkim2) iASL Compiler/Disassembler: 3080167802Sjkim 3081193267SjkimFixed an internal error that was generated for any forward references to ASL 3082193267SjkimAlias objects. 3083167802Sjkim 3084167802Sjkim---------------------------------------- 3085167802Sjkim13 January 2006. Summary of changes for version 20060113: 3086167802Sjkim 3087167802Sjkim1) ACPI CA Core Subsystem: 3088167802Sjkim 3089193267SjkimAdded 2006 copyright to all module headers and signons. This affects 3090193267Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and the 3091193267Sjkimutilities. 3092193267Sjkim 3093193267SjkimEnhanced the ACPICA error reporting in order to simplify user migration to 3094193267Sjkimthe non-debug version of ACPICA. Replaced all instances of the 3095193267SjkimACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug 3096193267Sjkimlevels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, 3097193267Sjkimrespectively. This preserves all error and warning messages in the non-debug 3098193267Sjkimversion of the ACPICA code (this has been referred to as the "debug lite" 3099193267Sjkimoption.) Over 200 cases were converted to create a total of over 380 3100193267Sjkimerror/warning messages across the ACPICA code. This increases the code and 3101193267Sjkimdata size of the default non-debug version of the code somewhat (about 13K), 3102193267Sjkimbut all error/warning reporting may be disabled if desired (and code 3103193267Sjkimeliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time 3104193267Sjkimconfiguration option. The size of the debug version of ACPICA remains about 3105193267Sjkimthe same. 3106167802Sjkim 3107193267SjkimFixed a memory leak within the AML Debugger "Set" command. One object was 3108193267Sjkimnot properly deleted for every successful invocation of the command. 3109167802Sjkim 3110193267SjkimCode and Data Size: The current and previous library sizes for the core 3111193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3112193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3113193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3114193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3115193267Sjkimand data size. Note that these values will vary depending on the efficiency 3116193267Sjkimof the compiler and the compiler options used during generation. 3117167802Sjkim 3118167802Sjkim Previous Release: 3119167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3120167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3121167802Sjkim Current Release: 3122167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3123167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3124167802Sjkim 3125167802Sjkim 3126167802Sjkim2) iASL Compiler/Disassembler: 3127167802Sjkim 3128193267SjkimThe compiler now officially supports the ACPI 3.0a specification that was 3129193267Sjkimreleased on December 30, 2005. (Specification is available at www.acpi.info) 3130167802Sjkim 3131167802Sjkim---------------------------------------- 3132167802Sjkim16 December 2005. Summary of changes for version 20051216: 3133167802Sjkim 3134167802Sjkim1) ACPI CA Core Subsystem: 3135167802Sjkim 3136193267SjkimImplemented optional support to allow unresolved names within ASL Package 3137193267Sjkimobjects. A null object is inserted in the package when a named reference 3138193267Sjkimcannot be located in the current namespace. Enabled via the interpreter 3139193267Sjkimslack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines 3140193267Sjkimthat contain such code. 3141167802Sjkim 3142193267SjkimImplemented an optimization to the initialization sequence that can improve 3143193267Sjkimboot time. During ACPI device initialization, the _STA method is now run if 3144193267Sjkimand only if the _INI method exists. The _STA method is used to determine if 3145193267Sjkimthe device is present; An _INI can only be run if _STA returns present, but 3146193267Sjkimit is a waste of time to run the _STA method if the _INI does not exist. 3147167802Sjkim(Prototype and assistance from Dong Wei) 3148167802Sjkim 3149193267SjkimImplemented use of the C99 uintptr_t for the pointer casting macros if it is 3150193267Sjkimavailable in the current compiler. Otherwise, the default (void *) cast is 3151193267Sjkimused as before. 3152167802Sjkim 3153193267SjkimFixed some possible memory leaks found within the execution path of the 3154193267SjkimBreak, Continue, If, and CreateField operators. (Valery Podrezov) 3155167802Sjkim 3156193267SjkimFixed a problem introduced in the 20051202 release where an exception is 3157193267Sjkimgenerated during method execution if a control method attempts to declare 3158193267Sjkimanother method. 3159167802Sjkim 3160193267SjkimMoved resource descriptor string constants that are used by both the AML 3161193267Sjkimdisassembler and AML debugger to the common utilities directory so that 3162193267Sjkimthese components are independent. 3163167802Sjkim 3164193267SjkimImplemented support in the AcpiExec utility (-e switch) to globally ignore 3165193267Sjkimexceptions during control method execution (method is not aborted.) 3166167802Sjkim 3167193267SjkimAdded the rsinfo.c source file to the AcpiExec makefile for Linux/Unix 3168193267Sjkimgeneration. 3169167802Sjkim 3170193267SjkimCode and Data Size: The current and previous library sizes for the core 3171193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3172193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3173193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3174193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3175193267Sjkimand data size. Note that these values will vary depending on the efficiency 3176193267Sjkimof the compiler and the compiler options used during generation. 3177167802Sjkim 3178167802Sjkim Previous Release: 3179167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3180167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3181167802Sjkim Current Release: 3182167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3183167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3184167802Sjkim 3185167802Sjkim 3186167802Sjkim2) iASL Compiler/Disassembler: 3187167802Sjkim 3188193267SjkimFixed a problem where a CPU stack overflow fault could occur if a recursive 3189193267Sjkimmethod call was made from within a Return statement. 3190167802Sjkim 3191167802Sjkim---------------------------------------- 3192167802Sjkim02 December 2005. Summary of changes for version 20051202: 3193167802Sjkim 3194167802Sjkim1) ACPI CA Core Subsystem: 3195167802Sjkim 3196193267SjkimModified the parsing of control methods to no longer create namespace 3197193267Sjkimobjects during the first pass of the parse. Objects are now created only 3198193267Sjkimduring the execute phase, at the moment the namespace creation operator is 3199193267Sjkimencountered in the AML (Name, OperationRegion, CreateByteField, etc.) This 3200193267Sjkimshould eliminate ALREADY_EXISTS exceptions seen on some machines where 3201193267Sjkimreentrant control methods are protected by an AML mutex. The mutex will now 3202193267Sjkimcorrectly block multiple threads from attempting to create the same object 3203193267Sjkimmore than once. 3204167802Sjkim 3205193267SjkimIncreased the number of available Owner Ids for namespace object tracking 3206193267Sjkimfrom 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on 3207193267Sjkimsome machines with a large number of ACPI tables (either static or dynamic). 3208167802Sjkim 3209193267SjkimFixed a problem with the AcpiExec utility where a fault could occur when the 3210193267Sjkim-b switch (batch mode) is used. 3211167802Sjkim 3212193267SjkimEnhanced the namespace dump routine to output the owner ID for each 3213193267Sjkimnamespace object. 3214167802Sjkim 3215193267SjkimCode and Data Size: The current and previous library sizes for the core 3216193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3217193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3218193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3219193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3220193267Sjkimand data size. Note that these values will vary depending on the efficiency 3221193267Sjkimof the compiler and the compiler options used during generation. 3222167802Sjkim 3223167802Sjkim Previous Release: 3224167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3225167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3226167802Sjkim Current Release: 3227167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3228167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3229167802Sjkim 3230167802Sjkim 3231167802Sjkim2) iASL Compiler/Disassembler: 3232167802Sjkim 3233193267SjkimFixed a parse error during compilation of certain Switch/Case constructs. To 3234193267Sjkimsimplify the parse, the grammar now allows for multiple Default statements 3235193267Sjkimand this error is now detected and flagged during the analysis phase. 3236167802Sjkim 3237193267SjkimDisassembler: The disassembly now includes the contents of the original 3238193267Sjkimtable header within a comment at the start of the file. This includes the 3239193267Sjkimname and version of the original ASL compiler. 3240167802Sjkim 3241167802Sjkim---------------------------------------- 3242167802Sjkim17 November 2005. Summary of changes for version 20051117: 3243167802Sjkim 3244167802Sjkim1) ACPI CA Core Subsystem: 3245167802Sjkim 3246193267SjkimFixed a problem in the AML parser where the method thread count could be 3247193267Sjkimdecremented below zero if any errors occurred during the method parse phase. 3248193267SjkimThis should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. 3249193267SjkimThis also fixed a related regression with the mechanism that detects and 3250193267Sjkimcorrects methods that cannot properly handle reentrancy (related to the 3251193267Sjkimdeployment of the new OwnerId mechanism.) 3252167802Sjkim 3253193267SjkimEliminated the pre-parsing of control methods (to detect errors) during 3254193267Sjkimtable load. Related to the problem above, this was causing unwind issues if 3255193267Sjkimany errors occurred during the parse, and it seemed to be overkill. A table 3256193267Sjkimload should not be aborted if there are problems with any single control 3257193267Sjkimmethod, thus rendering this feature rather pointless. 3258167802Sjkim 3259193267SjkimFixed a problem with the new table-driven resource manager where an internal 3260193267Sjkimbuffer overflow could occur for small resource templates. 3261167802Sjkim 3262193267SjkimImplemented a new external interface, AcpiGetVendorResource. This interface 3263193267Sjkimwill find and return a vendor-defined resource descriptor within a _CRS or 3264193267Sjkim_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas. 3265167802Sjkim 3266193267SjkimRemoved the length limit (200) on string objects as per the upcoming ACPI 3267193267Sjkim3.0A specification. This affects the following areas of the interpreter: 1) 3268193267Sjkimany implicit conversion of a Buffer to a String, 2) a String object result 3269193267Sjkimof the ASL Concatentate operator, 3) the String object result of the ASL 3270193267SjkimToString operator. 3271167802Sjkim 3272193267SjkimFixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER 3273193267Sjkimon a semaphore object would incorrectly timeout. This allows the 3274193267Sjkimmultithreading features of the AcpiExec utility to work properly under 3275193267SjkimWindows. 3276167802Sjkim 3277193267SjkimUpdated the Linux makefiles for the iASL compiler and AcpiExec to include 3278193267Sjkimthe recently added file named "utresrc.c". 3279167802Sjkim 3280193267SjkimCode and Data Size: The current and previous library sizes for the core 3281193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3282193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3283193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3284193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3285193267Sjkimand data size. Note that these values will vary depending on the efficiency 3286193267Sjkimof the compiler and the compiler options used during generation. 3287167802Sjkim 3288167802Sjkim Previous Release: 3289167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3290167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3291167802Sjkim Current Release: 3292167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3293167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3294167802Sjkim 3295167802Sjkim 3296167802Sjkim2) iASL Compiler/Disassembler: 3297167802Sjkim 3298193267SjkimRemoved the limit (200) on string objects as per the upcoming ACPI 3.0A 3299193267Sjkimspecification. For the iASL compiler, this means that string literals within 3300193267Sjkimthe source ASL can be of any length. 3301167802Sjkim 3302193267SjkimEnhanced the listing output to dump the AML code for resource descriptors 3303193267Sjkimimmediately after the ASL code for each descriptor, instead of in a block at 3304193267Sjkimthe end of the entire resource template. 3305167802Sjkim 3306193267SjkimEnhanced the compiler debug output to dump the entire original parse tree 3307193267Sjkimconstructed during the parse phase, before any transforms are applied to the 3308193267Sjkimtree. The transformed tree is dumped also. 3309167802Sjkim 3310167802Sjkim---------------------------------------- 3311167802Sjkim02 November 2005. Summary of changes for version 20051102: 3312167802Sjkim 3313167802Sjkim1) ACPI CA Core Subsystem: 3314167802Sjkim 3315193267SjkimModified the subsystem initialization sequence to improve GPE support. The 3316193267SjkimGPE initialization has been split into two parts in order to defer execution 3317193267Sjkimof the _PRW methods (Power Resources for Wake) until after the hardware is 3318193267Sjkimfully initialized and the SCI handler is installed. This allows the _PRW 3319193267Sjkimmethods to access fields protected by the Global Lock. This will fix systems 3320193267Sjkimwhere a NO_GLOBAL_LOCK exception has been seen during initialization. 3321167802Sjkim 3322193267SjkimConverted the ACPI internal object disassemble and display code within the 3323193267SjkimAML debugger to fully table-driven operation, reducing code size and 3324193267Sjkimincreasing maintainability. 3325167802Sjkim 3326193267SjkimFixed a regression with the ConcatenateResTemplate() ASL operator introduced 3327193267Sjkimin the 20051021 release. 3328167802Sjkim 3329193267SjkimImplemented support for "local" internal ACPI object types within the 3330193267Sjkimdebugger "Object" command and the AcpiWalkNamespace external interfaces. 3331193267SjkimThese local types include RegionFields, BankFields, IndexFields, Alias, and 3332193267Sjkimreference objects. 3333167802Sjkim 3334193267SjkimMoved common AML resource handling code into a new file, "utresrc.c". This 3335193267Sjkimcode is shared by both the Resource Manager and the AML Debugger. 3336167802Sjkim 3337193267SjkimCode and Data Size: The current and previous library sizes for the core 3338193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3339193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3340193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3341193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3342193267Sjkimand data size. Note that these values will vary depending on the efficiency 3343193267Sjkimof the compiler and the compiler options used during generation. 3344167802Sjkim 3345167802Sjkim Previous Release: 3346167802Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3347167802Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3348167802Sjkim Current Release: 3349167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3350167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3351167802Sjkim 3352167802Sjkim 3353167802Sjkim2) iASL Compiler/Disassembler: 3354167802Sjkim 3355193267SjkimFixed a problem with very large initializer lists (more than 4000 elements) 3356193267Sjkimfor both Buffer and Package objects where the parse stack could overflow. 3357167802Sjkim 3358193267SjkimEnhanced the pre-compile source code scan for non-ASCII characters to ignore 3359193267Sjkimcharacters within comment fields. The scan is now always performed and is no 3360193267Sjkimlonger optional, detecting invalid characters within a source file 3361193267Sjkimimmediately rather than during the parse phase or later. 3362167802Sjkim 3363193267SjkimEnhanced the ASL grammar definition to force early reductions on all list- 3364193267Sjkimstyle grammar elements so that the overall parse stack usage is greatly 3365193267Sjkimreduced. This should improve performance and reduce the possibility of parse 3366193267Sjkimstack overflow. 3367167802Sjkim 3368193267SjkimEliminated all reduce/reduce conflicts in the iASL parser generation. Also, 3369193267Sjkimwith the addition of a %expected statement, the compiler generates from 3370193267Sjkimsource with no warnings. 3371167802Sjkim 3372193267SjkimFixed a possible segment fault in the disassembler if the input filename 3373193267Sjkimdoes not contain a "dot" extension (Thomas Renninger). 3374167802Sjkim 3375167802Sjkim---------------------------------------- 3376151937Sjkim21 October 2005. Summary of changes for version 20051021: 3377151937Sjkim 3378151937Sjkim1) ACPI CA Core Subsystem: 3379151937Sjkim 3380193267SjkimImplemented support for the EM64T and other x86-64 processors. This 3381193267Sjkimessentially entails recognizing that these processors support non-aligned 3382193267Sjkimmemory transfers. Previously, all 64-bit processors were assumed to lack 3383193267Sjkimhardware support for non-aligned transfers. 3384151937Sjkim 3385193267SjkimCompleted conversion of the Resource Manager to nearly full table-driven 3386193267Sjkimoperation. Specifically, the resource conversion code (convert AML to 3387193267Sjkiminternal format and the reverse) and the debug code to dump internal 3388193267Sjkimresource descriptors are fully table-driven, reducing code and data size and 3389193267Sjkimimproving maintainability. 3390151937Sjkim 3391193267SjkimThe OSL interfaces for Acquire and Release Lock now use a 64-bit flag word 3392193267Sjkimon 64-bit processors instead of a fixed 32-bit word. (With assistance from 3393193267SjkimAlexey Starikovskiy) 3394151937Sjkim 3395193267SjkimImplemented support within the resource conversion code for the Type- 3396193267SjkimSpecific byte within the various ACPI 3.0 *WordSpace macros. 3397151937Sjkim 3398193267SjkimFixed some issues within the resource conversion code for the type-specific 3399193267Sjkimflags for both Memory and I/O address resource descriptors. For Memory, 3400193267Sjkimimplemented support for the MTP and TTP flags. For I/O, split the TRS and 3401193267SjkimTTP flags into two separate fields. 3402151937Sjkim 3403193267SjkimCode and Data Size: The current and previous library sizes for the core 3404193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3405193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3406193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3407193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3408193267Sjkimand data size. Note that these values will vary depending on the efficiency 3409193267Sjkimof the compiler and the compiler options used during generation. 3410151937Sjkim 3411151937Sjkim Previous Release: 3412151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3413151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3414151937Sjkim Current Release: 3415151937Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3416151937Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3417151937Sjkim 3418151937Sjkim 3419167802Sjkim 3420151937Sjkim2) iASL Compiler/Disassembler: 3421151937Sjkim 3422193267SjkimRelaxed a compiler restriction that disallowed a ResourceIndex byte if the 3423193267Sjkimcorresponding ResourceSource string was not also present in a resource 3424193267Sjkimdescriptor declaration. This restriction caused problems with existing 3425193267SjkimAML/ASL code that includes the Index byte without the string. When such AML 3426193267Sjkimwas disassembled, it could not be compiled without modification. Further, 3427193267Sjkimthe modified code created a resource template with a different size than the 3428193267Sjkimoriginal, breaking code that used fixed offsets into the resource template 3429193267Sjkimbuffer. 3430151937Sjkim 3431193267SjkimRemoved a recent feature of the disassembler to ignore a lone ResourceIndex 3432193267Sjkimbyte. This byte is now emitted if present so that the exact AML can be 3433193267Sjkimreproduced when the disassembled code is recompiled. 3434151937Sjkim 3435193267SjkimImproved comments and text alignment for the resource descriptor code 3436193267Sjkimemitted by the disassembler. 3437151937Sjkim 3438193267SjkimImplemented disassembler support for the ACPI 3.0 AccessSize field within a 3439193267SjkimRegister() resource descriptor. 3440151937Sjkim 3441151937Sjkim---------------------------------------- 3442151937Sjkim30 September 2005. Summary of changes for version 20050930: 3443151937Sjkim 3444151937Sjkim1) ACPI CA Core Subsystem: 3445151937Sjkim 3446193267SjkimCompleted a major overhaul of the Resource Manager code - specifically, 3447193267Sjkimoptimizations in the area of the AML/internal resource conversion code. The 3448193267Sjkimcode has been optimized to simplify and eliminate duplicated code, CPU stack 3449193267Sjkimuse has been decreased by optimizing function parameters and local 3450193267Sjkimvariables, and naming conventions across the manager have been standardized 3451193267Sjkimfor clarity and ease of maintenance (this includes function, parameter, 3452193267Sjkimvariable, and struct/typedef names.) The update may force changes in some 3453193267Sjkimdriver code, depending on how resources are handled by the host OS. 3454151937Sjkim 3455193267SjkimAll Resource Manager dispatch and information tables have been moved to a 3456193267Sjkimsingle location for clarity and ease of maintenance. One new file was 3457193267Sjkimcreated, named "rsinfo.c". 3458151937Sjkim 3459193267SjkimThe ACPI return macros (return_ACPI_STATUS, etc.) have been modified to 3460193267Sjkimguarantee that the argument is not evaluated twice, making them less prone 3461193267Sjkimto macro side-effects. However, since there exists the possibility of 3462193267Sjkimadditional stack use if a particular compiler cannot optimize them (such as 3463193267Sjkimin the debug generation case), the original macros are optionally available. 3464193267SjkimNote that some invocations of the return_VALUE macro may now cause size 3465193267Sjkimmismatch warnings; the return_UINT8 and return_UINT32 macros are provided to 3466193267Sjkimeliminate these. (From Randy Dunlap) 3467151937Sjkim 3468193267SjkimImplemented a new mechanism to enable debug tracing for individual control 3469193267Sjkimmethods. A new external interface, AcpiDebugTrace, is provided to enable 3470193267Sjkimthis mechanism. The intent is to allow the host OS to easily enable and 3471193267Sjkimdisable tracing for problematic control methods. This interface can be 3472193267Sjkimeasily exposed to a user or debugger interface if desired. See the file 3473151937Sjkimpsxface.c for details. 3474151937Sjkim 3475193267SjkimAcpiUtCallocate will now return a valid pointer if a length of zero is 3476193267Sjkimspecified - a length of one is used and a warning is issued. This matches 3477193267Sjkimthe behavior of AcpiUtAllocate. 3478151937Sjkim 3479193267SjkimCode and Data Size: The current and previous library sizes for the core 3480193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3481193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3482193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3483193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3484193267Sjkimand data size. Note that these values will vary depending on the efficiency 3485193267Sjkimof the compiler and the compiler options used during generation. 3486151937Sjkim 3487151937Sjkim Previous Release: 3488151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 3489151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 3490151937Sjkim Current Release: 3491151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3492151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3493151937Sjkim 3494151937Sjkim 3495151937Sjkim2) iASL Compiler/Disassembler: 3496151937Sjkim 3497193267SjkimA remark is issued if the effective compile-time length of a package or 3498193267Sjkimbuffer is zero. Previously, this was a warning. 3499151937Sjkim 3500151937Sjkim---------------------------------------- 3501151937Sjkim16 September 2005. Summary of changes for version 20050916: 3502151937Sjkim 3503151937Sjkim1) ACPI CA Core Subsystem: 3504151937Sjkim 3505193267SjkimFixed a problem within the Resource Manager where support for the Generic 3506193267SjkimRegister descriptor was not fully implemented. This descriptor is now fully 3507193267Sjkimrecognized, parsed, disassembled, and displayed. 3508151937Sjkim 3509193267SjkimCompletely restructured the Resource Manager code to utilize table-driven 3510193267Sjkimdispatch and lookup, eliminating many of the large switch() statements. This 3511193267Sjkimreduces overall subsystem code size and code complexity. Affects the 3512193267Sjkimresource parsing and construction, disassembly, and debug dump output. 3513151937Sjkim 3514193267SjkimCleaned up and restructured the debug dump output for all resource 3515193267Sjkimdescriptors. Improved readability of the output and reduced code size. 3516151937Sjkim 3517193267SjkimFixed a problem where changes to internal data structures caused the 3518193267Sjkimoptional ACPI_MUTEX_DEBUG code to fail compilation if specified. 3519151937Sjkim 3520193267SjkimCode and Data Size: The current and previous library sizes for the core 3521193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3522193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3523193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3524193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3525193267Sjkimand data size. Note that these values will vary depending on the efficiency 3526193267Sjkimof the compiler and the compiler options used during generation. 3527151937Sjkim 3528151937Sjkim Previous Release: 3529151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 3530151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 3531151937Sjkim Current Release: 3532151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 3533151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 3534151937Sjkim 3535151937Sjkim 3536151937Sjkim2) iASL Compiler/Disassembler: 3537151937Sjkim 3538193267SjkimUpdated the disassembler to automatically insert an EndDependentFn() macro 3539193267Sjkiminto the ASL stream if this macro is missing in the original AML code, 3540193267Sjkimsimplifying compilation of the resulting ASL module. 3541151937Sjkim 3542193267SjkimFixed a problem in the disassembler where a disassembled ResourceSource 3543193267Sjkimstring (within a large resource descriptor) was not surrounded by quotes and 3544193267Sjkimnot followed by a comma, causing errors when the resulting ASL module was 3545193267Sjkimcompiled. Also, escape sequences within a ResourceSource string are now 3546193267Sjkimhandled correctly (especially "\\") 3547151937Sjkim 3548151937Sjkim---------------------------------------- 3549151937Sjkim02 September 2005. Summary of changes for version 20050902: 3550151937Sjkim 3551151937Sjkim1) ACPI CA Core Subsystem: 3552151937Sjkim 3553193267SjkimFixed a problem with the internal Owner ID allocation and deallocation 3554193267Sjkimmechanisms for control method execution and recursive method invocation. 3555193267SjkimThis should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" 3556193267Sjkimmessages seen on some systems. Recursive method invocation depth is 3557193267Sjkimcurrently limited to 255. (Alexey Starikovskiy) 3558151937Sjkim 3559193267SjkimCompletely eliminated all vestiges of support for the "module-level 3560193267Sjkimexecutable code" until this support is fully implemented and debugged. This 3561193267Sjkimshould eliminate the NO_RETURN_VALUE exceptions seen during table load on 3562193267Sjkimsome systems that invoke this support. 3563151937Sjkim 3564193267SjkimFixed a problem within the resource manager code where the transaction flags 3565193267Sjkimfor a 64-bit address descriptor were handled incorrectly in the type- 3566193267Sjkimspecific flag byte. 3567151937Sjkim 3568193267SjkimConsolidated duplicate code within the address descriptor resource manager 3569193267Sjkimcode, reducing overall subsystem code size. 3570151937Sjkim 3571193267SjkimFixed a fault when using the AML debugger "disassemble" command to 3572193267Sjkimdisassemble individual control methods. 3573151937Sjkim 3574193267SjkimRemoved references to the "release_current" directory within the Unix 3575193267Sjkimrelease package. 3576151937Sjkim 3577193267SjkimCode and Data Size: The current and previous core subsystem library sizes 3578193267Sjkimare shown below. These are the code and data sizes for the acpica.lib 3579193267Sjkimproduced by the Microsoft Visual C++ 6.0 compiler. These values do not 3580193267Sjkiminclude any ACPI driver or OSPM code. The debug version of the code includes 3581193267Sjkimthe debug output trace mechanism and has a much larger code and data size. 3582193267SjkimNote that these values will vary depending on the efficiency of the compiler 3583193267Sjkimand the compiler options used during generation. 3584151937Sjkim 3585151937Sjkim Previous Release: 3586151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3587151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 3588151937Sjkim Current Release: 3589151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 3590151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 3591151937Sjkim 3592151937Sjkim 3593151937Sjkim2) iASL Compiler/Disassembler: 3594151937Sjkim 3595193267SjkimImplemented an error check for illegal duplicate values in the interrupt and 3596193267Sjkimdma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and 3597193267SjkimInterrupt(). 3598151937Sjkim 3599193267SjkimImplemented error checking for the Irq() and IrqNoFlags() macros to detect 3600193267Sjkimtoo many values in the interrupt list (16 max) and invalid values in the 3601193267Sjkimlist (range 0 - 15) 3602151937Sjkim 3603193267SjkimThe maximum length string literal within an ASL file is now restricted to 3604193267Sjkim200 characters as per the ACPI specification. 3605151937Sjkim 3606193267SjkimFixed a fault when using the -ln option (generate namespace listing). 3607151937Sjkim 3608193267SjkimImplemented an error check to determine if a DescriptorName within a 3609193267Sjkimresource descriptor has already been used within the current scope. 3610151937Sjkim 3611151937Sjkim---------------------------------------- 3612151937Sjkim15 August 2005. Summary of changes for version 20050815: 3613193267Sjkim 3614151937Sjkim1) ACPI CA Core Subsystem: 3615193267Sjkim 3616193267SjkimImplemented a full bytewise compare to determine if a table load request is 3617193267Sjkimattempting to load a duplicate table. The compare is performed if the table 3618193267Sjkimsignatures and table lengths match. This will allow different tables with 3619193267Sjkimthe same OEM Table ID and revision to be loaded - probably against the ACPI 3620193267Sjkimspecification, but discovered in the field nonetheless. 3621193267Sjkim 3622193267SjkimAdded the changes.txt logfile to each of the zipped release packages. 3623193267Sjkim 3624193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3625193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3626193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3627193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3628193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3629193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3630193267Sjkimthe compiler options used during generation. 3631193267Sjkim 3632151937Sjkim Previous Release: 3633151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3634151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 3635151937Sjkim Current Release: 3636151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3637151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 3638193267Sjkim 3639193267Sjkim 3640151937Sjkim2) iASL Compiler/Disassembler: 3641193267Sjkim 3642193267SjkimFixed a problem where incorrect AML code could be generated for Package 3643193267Sjkimobjects if optimization is disabled (via the -oa switch). 3644193267Sjkim 3645193267SjkimFixed a problem with where incorrect AML code is generated for variable- 3646193267Sjkimlength packages when the package length is not specified and the number of 3647193267Sjkiminitializer values is greater than 255. 3648193267Sjkim 3649151937Sjkim 3650151937Sjkim---------------------------------------- 3651151937Sjkim29 July 2005. Summary of changes for version 20050729: 3652151937Sjkim 3653151937Sjkim1) ACPI CA Core Subsystem: 3654151937Sjkim 3655193267SjkimImplemented support to ignore an attempt to install/load a particular ACPI 3656193267Sjkimtable more than once. Apparently there exists BIOS code that repeatedly 3657193267Sjkimattempts to load the same SSDT upon certain events. With assistance from 3658193267SjkimVenkatesh Pallipadi. 3659151937Sjkim 3660193267SjkimRestructured the main interface to the AML parser in order to correctly 3661193267Sjkimhandle all exceptional conditions. This will prevent leakage of the OwnerId 3662193267Sjkimresource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some 3663193267Sjkimmachines. With assistance from Alexey Starikovskiy. 3664151937Sjkim 3665193267SjkimSupport for "module level code" has been disabled in this version due to a 3666193267Sjkimnumber of issues that have appeared on various machines. The support can be 3667193267Sjkimenabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem 3668193267Sjkimcompilation. When the issues are fully resolved, the code will be enabled by 3669151937Sjkimdefault again. 3670151937Sjkim 3671193267SjkimModified the internal functions for debug print support to define the 3672193267SjkimFunctionName parameter as a (const char *) for compatibility with compiler 3673193267Sjkimbuilt-in macros such as __FUNCTION__, etc. 3674151937Sjkim 3675151937SjkimLinted the entire ACPICA source tree for both 32-bit and 64-bit. 3676151937Sjkim 3677193267SjkimImplemented support to display an object count summary for the AML Debugger 3678193267Sjkimcommands Object and Methods. 3679151937Sjkim 3680193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3681193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3682193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3683193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3684193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3685193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3686193267Sjkimthe compiler options used during generation. 3687151937Sjkim 3688151937Sjkim Previous Release: 3689151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 3690151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 3691151937Sjkim Current Release: 3692151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3693151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 3694151937Sjkim 3695151937Sjkim 3696151937Sjkim2) iASL Compiler/Disassembler: 3697151937Sjkim 3698193267SjkimFixed a regression that appeared in the 20050708 version of the compiler 3699193267Sjkimwhere an error message was inadvertently emitted for invocations of the _OSI 3700193267Sjkimreserved control method. 3701151937Sjkim 3702151937Sjkim---------------------------------------- 3703151937Sjkim08 July 2005. Summary of changes for version 20050708: 3704151937Sjkim 3705151937Sjkim1) ACPI CA Core Subsystem: 3706151937Sjkim 3707193267SjkimThe use of the CPU stack in the debug version of the subsystem has been 3708193267Sjkimconsiderably reduced. Previously, a debug structure was declared in every 3709193267Sjkimfunction that used the debug macros. This structure has been removed in 3710193267Sjkimfavor of declaring the individual elements as parameters to the debug 3711193267Sjkimfunctions. This reduces the cumulative stack use during nested execution of 3712193267SjkimACPI function calls at the cost of a small increase in the code size of the 3713193267Sjkimdebug version of the subsystem. With assistance from Alexey Starikovskiy and 3714193267SjkimLen Brown. 3715151937Sjkim 3716193267SjkimAdded the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent 3717193267Sjkimheaders to define a macro that will return the current function name at 3718193267Sjkimruntime (such as __FUNCTION__ or _func_, etc.) The function name is used by 3719193267Sjkimthe debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the 3720193267Sjkimcompiler-dependent header, the function name is saved on the CPU stack (one 3721193267Sjkimpointer per function.) This mechanism is used because apparently there 3722193267Sjkimexists no standard ANSI-C defined macro that that returns the function name. 3723151937Sjkim 3724193267SjkimRedesigned and reimplemented the "Owner ID" mechanism used to track 3725193267Sjkimnamespace objects created/deleted by ACPI tables and control method 3726193267Sjkimexecution. A bitmap is now used to allocate and free the IDs, thus solving 3727193267Sjkimthe wraparound problem present in the previous implementation. The size of 3728193267Sjkimthe namespace node descriptor was reduced by 2 bytes as a result (Alexey 3729151937SjkimStarikovskiy). 3730151937Sjkim 3731193267SjkimRemoved the UINT32_BIT and UINT16_BIT types that were used for the bitfield 3732193267Sjkimflag definitions within the headers for the predefined ACPI tables. These 3733193267Sjkimhave been replaced by UINT8_BIT in order to increase the code portability of 3734193267Sjkimthe subsystem. If the use of UINT8 remains a problem, we may be forced to 3735193267Sjkimeliminate bitfields entirely because of a lack of portability. 3736151937Sjkim 3737193267SjkimEnhanced the performance of the AcpiUtUpdateObjectReference procedure. This 3738193267Sjkimis a frequently used function and this improvement increases the performance 3739193267Sjkimof the entire subsystem (Alexey Starikovskiy). 3740151937Sjkim 3741193267SjkimFixed several possible memory leaks and the inverse - premature object 3742193267Sjkimdeletion (Alexey Starikovskiy). 3743151937Sjkim 3744193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3745193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3746193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3747193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3748193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3749193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3750193267Sjkimthe compiler options used during generation. 3751151937Sjkim 3752151937Sjkim Previous Release: 3753151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 3754151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 3755151937Sjkim Current Release: 3756151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 3757151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 3758151937Sjkim 3759151937Sjkim---------------------------------------- 3760151937Sjkim24 June 2005. Summary of changes for version 20050624: 3761151937Sjkim 3762151937Sjkim1) ACPI CA Core Subsystem: 3763151937Sjkim 3764193267SjkimModified the new OSL cache interfaces to use ACPI_CACHE_T as the type for 3765193267Sjkimthe host-defined cache object. This allows the OSL implementation to define 3766193267Sjkimand type this object in any manner desired, simplifying the OSL 3767193267Sjkimimplementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for 3768193267SjkimLinux, and should be defined in the OS-specific header file for other 3769193267Sjkimoperating systems as required. 3770151937Sjkim 3771193267SjkimChanged the interface to AcpiOsAcquireObject to directly return the 3772193267Sjkimrequested object as the function return (instead of ACPI_STATUS.) This 3773193267Sjkimchange was made for performance reasons, since this is the purpose of the 3774193267Sjkiminterface in the first place. AcpiOsAcquireObject is now similar to the 3775193267SjkimAcpiOsAllocate interface. 3776151937Sjkim 3777193267SjkimImplemented a new AML debugger command named Businfo. This command displays 3778193267Sjkiminformation about all devices that have an associate _PRT object. The _ADR, 3779193267Sjkim_HID, _UID, and _CID are displayed for these devices. 3780151937Sjkim 3781193267SjkimModified the initialization sequence in AcpiInitializeSubsystem to call the 3782193267SjkimOSL interface AcpiOslInitialize first, before any local initialization. This 3783193267Sjkimchange was required because the global initialization now calls OSL 3784193267Sjkiminterfaces. 3785151937Sjkim 3786193267SjkimEnhanced the Dump command to display the entire contents of Package objects 3787193267Sjkim(including all sub-objects and their values.) 3788151937Sjkim 3789193267SjkimRestructured the code base to split some files because of size and/or 3790193267Sjkimbecause the code logically belonged in a separate file. New files are listed 3791193267Sjkimbelow. All makefiles and project files included in the ACPI CA release have 3792193267Sjkimbeen updated. 3793151937Sjkim utilities/utcache.c /* Local cache interfaces */ 3794151937Sjkim utilities/utmutex.c /* Local mutex support */ 3795151937Sjkim utilities/utstate.c /* State object support */ 3796151937Sjkim interpreter/parser/psloop.c /* Main AML parse loop */ 3797151937Sjkim 3798193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3799193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3800193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3801193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3802193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3803193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3804193267Sjkimthe compiler options used during generation. 3805151937Sjkim 3806151937Sjkim Previous Release: 3807151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 3808151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 3809151937Sjkim Current Release: 3810151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 3811151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 3812151937Sjkim 3813151937Sjkim 3814151937Sjkim2) iASL Compiler/Disassembler: 3815151937Sjkim 3816193267SjkimFixed a regression introduced in version 20050513 where the use of a Package 3817193267Sjkimobject within a Case() statement caused a compile time exception. The 3818193267Sjkimoriginal behavior has been restored (a Match() operator is emitted.) 3819151937Sjkim 3820151937Sjkim---------------------------------------- 3821151937Sjkim17 June 2005. Summary of changes for version 20050617: 3822151937Sjkim 3823151937Sjkim1) ACPI CA Core Subsystem: 3824151937Sjkim 3825193267SjkimMoved the object cache operations into the OS interface layer (OSL) to allow 3826193267Sjkimthe host OS to handle these operations if desired (for example, the Linux 3827193267SjkimOSL will invoke the slab allocator). This support is optional; the compile 3828193267Sjkimtime define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache 3829193267Sjkimcode in the ACPI CA core. The new OSL interfaces are shown below. See 3830193267Sjkimutalloc.c for an example implementation, and acpiosxf.h for the exact 3831193267Sjkiminterface definitions. With assistance from Alexey Starikovskiy. 3832151937Sjkim AcpiOsCreateCache 3833151937Sjkim AcpiOsDeleteCache 3834151937Sjkim AcpiOsPurgeCache 3835151937Sjkim AcpiOsAcquireObject 3836151937Sjkim AcpiOsReleaseObject 3837151937Sjkim 3838193267SjkimModified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return 3839193267Sjkimand restore a flags parameter. This fits better with many OS lock models. 3840193267SjkimNote: the current execution state (interrupt handler or not) is no longer 3841193267Sjkimpassed to these interfaces. If necessary, the OSL must determine this state 3842193267Sjkimby itself, a simple and fast operation. With assistance from Alexey 3843151937SjkimStarikovskiy. 3844151937Sjkim 3845193267SjkimFixed a problem in the ACPI table handling where a valid XSDT was assumed 3846193267Sjkimpresent if the revision of the RSDP was 2 or greater. According to the ACPI 3847193267Sjkimspecification, the XSDT is optional in all cases, and the table manager 3848193267Sjkimtherefore now checks for both an RSDP >=2 and a valid XSDT pointer. 3849193267SjkimOtherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain 3850193267Sjkimonly the RSDT. 3851151937Sjkim 3852193267SjkimFixed an interpreter problem with the Mid() operator in the case of an input 3853193267Sjkimstring where the resulting output string is of zero length. It now correctly 3854193267Sjkimreturns a valid, null terminated string object instead of a string object 3855193267Sjkimwith a null pointer. 3856151937Sjkim 3857193267SjkimFixed a problem with the control method argument handling to allow a store 3858193267Sjkimto an Arg object that already contains an object of type Device. The Device 3859193267Sjkimobject is now correctly overwritten. Previously, an error was returned. 3860151937Sjkim 3861167802Sjkim 3862193267SjkimEnhanced the debugger Find command to emit object values in addition to the 3863193267Sjkimfound object pathnames. The output format is the same as the dump namespace 3864193267Sjkimcommand. 3865151937Sjkim 3866193267SjkimEnhanced the debugger Set command. It now has the ability to set the value 3867193267Sjkimof any Named integer object in the namespace (Previously, only method locals 3868193267Sjkimand args could be set.) 3869151937Sjkim 3870193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3871193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3872193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3873193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3874193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3875193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3876193267Sjkimthe compiler options used during generation. 3877151937Sjkim 3878151937Sjkim Previous Release: 3879151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 3880151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 3881151937Sjkim Current Release: 3882151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 3883151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 3884151937Sjkim 3885151937Sjkim 3886151937Sjkim2) iASL Compiler/Disassembler: 3887151937Sjkim 3888193267SjkimFixed a regression in the disassembler where if/else/while constructs were 3889193267Sjkimoutput incorrectly. This problem was introduced in the previous release 3890193267Sjkim(20050526). This problem also affected the single-step disassembly in the 3891193267Sjkimdebugger. 3892151937Sjkim 3893193267SjkimFixed a problem where compiling the reserved _OSI method would randomly (but 3894193267Sjkimrarely) produce compile errors. 3895151937Sjkim 3896193267SjkimEnhanced the disassembler to emit compilable code in the face of incorrect 3897193267SjkimAML resource descriptors. If the optional ResourceSourceIndex is present, 3898193267Sjkimbut the ResourceSource is not, do not emit the ResourceSourceIndex in the 3899193267Sjkimdisassembly. Otherwise, the resulting code cannot be compiled without 3900193267Sjkimerrors. 3901151937Sjkim 3902151937Sjkim---------------------------------------- 3903151937Sjkim26 May 2005. Summary of changes for version 20050526: 3904151937Sjkim 3905151937Sjkim1) ACPI CA Core Subsystem: 3906151937Sjkim 3907193267SjkimImplemented support to execute Type 1 and Type 2 AML opcodes appearing at 3908193267Sjkimthe module level (not within a control method.) These opcodes are executed 3909193267Sjkimexactly once at the time the table is loaded. This type of code was legal up 3910193267Sjkimuntil the release of ACPI 2.0B (2002) and is now supported within ACPI CA in 3911193267Sjkimorder to provide backwards compatibility with earlier BIOS implementations. 3912193267SjkimThis eliminates the "Encountered executable code at module level" warning 3913193267Sjkimthat was previously generated upon detection of such code. 3914151937Sjkim 3915193267SjkimFixed a problem in the interpreter where an AE_NOT_FOUND exception could 3916193267Sjkiminadvertently be generated during the lookup of namespace objects in the 3917193267Sjkimsecond pass parse of ACPI tables and control methods. It appears that this 3918193267Sjkimproblem could occur during the resolution of forward references to namespace 3919193267Sjkimobjects. 3920151937Sjkim 3921193267SjkimAdded the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function, 3922193267Sjkimcorresponding to the same #ifdef in the AcpiUtAcquireMutex function. This 3923193267Sjkimallows the deadlock detection debug code to be compiled out in the normal 3924193267Sjkimcase, improving mutex performance (and overall subsystem performance) 3925193267Sjkimconsiderably. 3926151937Sjkim 3927193267SjkimImplemented a handful of miscellaneous fixes for possible memory leaks on 3928193267Sjkimerror conditions and error handling control paths. These fixes were 3929193267Sjkimsuggested by FreeBSD and the Coverity Prevent source code analysis tool. 3930151937Sjkim 3931193267SjkimAdded a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c) 3932193267Sjkimto prevent a fault in this error case. 3933151937Sjkim 3934193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3935193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3936193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3937193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3938193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3939193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3940193267Sjkimthe compiler options used during generation. 3941151937Sjkim 3942151937Sjkim Previous Release: 3943151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 3944151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 3945151937Sjkim Current Release: 3946151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 3947151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 3948151937Sjkim 3949151937Sjkim 3950151937Sjkim2) iASL Compiler/Disassembler: 3951151937Sjkim 3952193267SjkimImplemented support to allow Type 1 and Type 2 ASL operators to appear at 3953193267Sjkimthe module level (not within a control method.) These operators will be 3954193267Sjkimexecuted once at the time the table is loaded. This type of code was legal 3955193267Sjkimup until the release of ACPI 2.0B (2002) and is now supported by the iASL 3956193267Sjkimcompiler in order to provide backwards compatibility with earlier BIOS ASL 3957193267Sjkimcode. 3958151937Sjkim 3959193267SjkimThe ACPI integer width (specified via the table revision ID or the -r 3960193267Sjkimoverride, 32 or 64 bits) is now used internally during compile-time constant 3961193267Sjkimfolding to ensure that constants are truncated to 32 bits if necessary. 3962193267SjkimPreviously, the revision ID value was only emitted in the AML table header. 3963151937Sjkim 3964193267SjkimAn error message is now generated for the Mutex and Method operators if the 3965193267SjkimSyncLevel parameter is outside the legal range of 0 through 15. 3966151937Sjkim 3967193267SjkimFixed a problem with the Method operator ParameterTypes list handling (ACPI 3968193267Sjkim3.0). Previously, more than 2 types or 2 arguments generated a syntax error. 3969193267SjkimThe actual underlying implementation of method argument typechecking is 3970193267Sjkimstill under development, however. 3971151937Sjkim 3972151937Sjkim---------------------------------------- 3973151937Sjkim13 May 2005. Summary of changes for version 20050513: 3974151937Sjkim 3975151937Sjkim1) ACPI CA Core Subsystem: 3976151937Sjkim 3977193267SjkimImplemented support for PCI Express root bridges -- added support for device 3978193267SjkimPNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup. 3979151937Sjkim 3980193267SjkimThe interpreter now automatically truncates incoming 64-bit constants to 32 3981193267Sjkimbits if currently executing out of a 32-bit ACPI table (Revision < 2). This 3982193267Sjkimalso affects the iASL compiler constant folding. (Note: as per below, the 3983193267SjkimiASL compiler no longer allows 64-bit constants within 32-bit tables.) 3984151937Sjkim 3985193267SjkimFixed a problem where string and buffer objects with "static" pointers 3986193267Sjkim(pointers to initialization data within an ACPI table) were not handled 3987193267Sjkimconsistently. The internal object copy operation now always copies the data 3988193267Sjkimto a newly allocated buffer, regardless of whether the source object is 3989193267Sjkimstatic or not. 3990151937Sjkim 3991193267SjkimFixed a problem with the FromBCD operator where an implicit result 3992193267Sjkimconversion was improperly performed while storing the result to the target 3993193267Sjkimoperand. Since this is an "explicit conversion" operator, the implicit 3994193267Sjkimconversion should never be performed on the output. 3995151937Sjkim 3996193267SjkimFixed a problem with the CopyObject operator where a copy to an existing 3997193267Sjkimnamed object did not always completely overwrite the existing object stored 3998193267Sjkimat name. Specifically, a buffer-to-buffer copy did not delete the existing 3999193267Sjkimbuffer. 4000151937Sjkim 4001193267SjkimReplaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and 4002193267Sjkimstructs for consistency. 4003151937Sjkim 4004193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4005193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4006193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4007193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4008193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4009193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4010193267Sjkimthe compiler options used during generation. 4011151937Sjkim 4012151937Sjkim Previous Release: 4013151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4014151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4015151937Sjkim Current Release: (Same sizes) 4016151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4017151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4018151937Sjkim 4019151937Sjkim 4020151937Sjkim2) iASL Compiler/Disassembler: 4021151937Sjkim 4022193267SjkimThe compiler now emits a warning if an attempt is made to generate a 64-bit 4023193267Sjkiminteger constant from within a 32-bit ACPI table (Revision < 2). The integer 4024193267Sjkimis truncated to 32 bits. 4025151937Sjkim 4026193267SjkimFixed a problem with large package objects: if the static length of the 4027193267Sjkimpackage is greater than 255, the "variable length package" opcode is 4028193267Sjkimemitted. Previously, this caused an error. This requires an update to the 4029193267SjkimACPI spec, since it currently (incorrectly) states that packages larger than 4030193267Sjkim255 elements are not allowed. 4031151937Sjkim 4032193267SjkimThe disassembler now correctly handles variable length packages and packages 4033193267Sjkimlarger than 255 elements. 4034151937Sjkim 4035151937Sjkim---------------------------------------- 4036151937Sjkim08 April 2005. Summary of changes for version 20050408: 4037151937Sjkim 4038151937Sjkim1) ACPI CA Core Subsystem: 4039151937Sjkim 4040193267SjkimFixed three cases in the interpreter where an "index" argument to an ASL 4041193267Sjkimfunction was still (internally) 32 bits instead of the required 64 bits. 4042193267SjkimThis was the Index argument to the Index, Mid, and Match operators. 4043151937Sjkim 4044193267SjkimThe "strupr" function is now permanently local (AcpiUtStrupr), since this is 4045193267Sjkimnot a POSIX-defined function and not present in most kernel-level C 4046193267Sjkimlibraries. All references to the C library strupr function have been removed 4047193267Sjkimfrom the headers. 4048151937Sjkim 4049193267SjkimCompleted the deployment of static functions/prototypes. All prototypes with 4050193267Sjkimthe static attribute have been moved from the headers to the owning C file. 4051151937Sjkim 4052193267SjkimImplemented an extract option (-e) for the AcpiBin utility (AML binary 4053193267Sjkimutility). This option allows the utility to extract individual ACPI tables 4054193267Sjkimfrom the output of AcpiDmp. It provides the same functionality of the 4055193267Sjkimacpixtract.pl perl script without the worry of setting the correct perl 4056193267Sjkimoptions. AcpiBin runs on Windows and has not yet been generated/validated in 4057193267Sjkimthe Linux/Unix environment (but should be soon). 4058193267Sjkim 4059193267SjkimUpdated and fixed the table dump option for AcpiBin (-d). This option 4060193267Sjkimconverts a single ACPI table to a hex/ascii file, similar to the output of 4061193267SjkimAcpiDmp. 4062151937Sjkim 4063193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4064193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4065193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4066193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4067193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4068193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4069193267Sjkimthe compiler options used during generation. 4070151937Sjkim 4071151937Sjkim Previous Release: 4072151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4073151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4074151937Sjkim Current Release: 4075151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4076151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4077151937Sjkim 4078151937Sjkim 4079151937Sjkim2) iASL Compiler/Disassembler: 4080151937Sjkim 4081193267SjkimDisassembler fix: Added a check to ensure that the table length found in the 4082193267SjkimACPI table header within the input file is not longer than the actual input 4083193267Sjkimfile size. This indicates some kind of file or table corruption. 4084151937Sjkim 4085151937Sjkim---------------------------------------- 4086151937Sjkim29 March 2005. Summary of changes for version 20050329: 4087151937Sjkim 4088151937Sjkim1) ACPI CA Core Subsystem: 4089151937Sjkim 4090193267SjkimAn error is now generated if an attempt is made to create a Buffer Field of 4091193267Sjkimlength zero (A CreateField with a length operand of zero.) 4092151937Sjkim 4093193267SjkimThe interpreter now issues a warning whenever executable code at the module 4094193267Sjkimlevel is detected during ACPI table load. This will give some idea of the 4095193267Sjkimprevalence of this type of code. 4096151937Sjkim 4097193267SjkimImplemented support for references to named objects (other than control 4098193267Sjkimmethods) within package objects. 4099151937Sjkim 4100193267SjkimEnhanced package object output for the debug object. Package objects are now 4101193267Sjkimcompletely dumped, showing all elements. 4102151937Sjkim 4103193267SjkimEnhanced miscellaneous object output for the debug object. Any object can 4104193267Sjkimnow be written to the debug object (for example, a device object can be 4105193267Sjkimwritten, and the type of the object will be displayed.) 4106151937Sjkim 4107193267SjkimThe "static" qualifier has been added to all local functions across both the 4108193267Sjkimcore subsystem and the iASL compiler. 4109151937Sjkim 4110193267SjkimThe number of "long" lines (> 80 chars) within the source has been 4111193267Sjkimsignificantly reduced, by about 1/3. 4112151937Sjkim 4113193267SjkimCleaned up all header files to ensure that all CA/iASL functions are 4114193267Sjkimprototyped (even static functions) and the formatting is consistent. 4115151937Sjkim 4116151937SjkimTwo new header files have been added, acopcode.h and acnames.h. 4117151937Sjkim 4118151937SjkimRemoved several obsolete functions that were no longer used. 4119151937Sjkim 4120193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4121193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4122193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4123193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4124193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4125193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4126193267Sjkimthe compiler options used during generation. 4127151937Sjkim 4128151937Sjkim Previous Release: 4129151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4130151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4131151937Sjkim Current Release: 4132151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4133151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4134151937Sjkim 4135151937Sjkim 4136167802Sjkim 4137151937Sjkim2) iASL Compiler/Disassembler: 4138151937Sjkim 4139193267SjkimFixed a problem with the resource descriptor generation/support. For the 4140193267SjkimResourceSourceIndex and the ResourceSource fields, both must be present, or 4141193267Sjkimboth must be not present - can't have one without the other. 4142151937Sjkim 4143193267SjkimThe compiler now returns non-zero from the main procedure if any errors have 4144193267Sjkimoccurred during the compilation. 4145151937Sjkim 4146151937Sjkim 4147151937Sjkim---------------------------------------- 4148151937Sjkim09 March 2005. Summary of changes for version 20050309: 4149151937Sjkim 4150151937Sjkim1) ACPI CA Core Subsystem: 4151151937Sjkim 4152193267SjkimThe string-to-buffer implicit conversion code has been modified again after 4153193267Sjkima change to the ACPI specification. In order to match the behavior of the 4154193267Sjkimother major ACPI implementation, the target buffer is no longer truncated if 4155193267Sjkimthe source string is smaller than an existing target buffer. This change 4156193267Sjkimrequires an update to the ACPI spec, and should eliminate the recent 4157151937SjkimAE_AML_BUFFER_LIMIT issues. 4158151937Sjkim 4159193267SjkimThe "implicit return" support was rewritten to a new algorithm that solves 4160193267Sjkimthe general case. Rather than attempt to determine when a method is about to 4161193267Sjkimexit, the result of every ASL operator is saved momentarily until the very 4162193267Sjkimnext ASL operator is executed. Therefore, no matter how the method exits, 4163193267Sjkimthere will always be a saved implicit return value. This feature is only 4164193267Sjkimenabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate 4165193267SjkimAE_AML_NO_RETURN_VALUE errors when enabled. 4166151937Sjkim 4167193267SjkimImplemented implicit conversion support for the predicate (operand) of the 4168193267SjkimIf, Else, and While operators. String and Buffer arguments are automatically 4169193267Sjkimconverted to Integers. 4170151937Sjkim 4171193267SjkimChanged the string-to-integer conversion behavior to match the new ACPI 4172193267Sjkimerrata: "If no integer object exists, a new integer is created. The ASCII 4173193267Sjkimstring is interpreted as a hexadecimal constant. Each string character is 4174193267Sjkiminterpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting 4175193267Sjkimwith the first character as the most significant digit, and ending with the 4176193267Sjkimfirst non-hexadecimal character or end-of-string." This means that the first 4177193267Sjkimnon-hex character terminates the conversion and this is the code that was 4178193267Sjkimchanged. 4179151937Sjkim 4180193267SjkimFixed a problem where the ObjectType operator would fail (fault) when used 4181193267Sjkimon an Index of a Package which pointed to a null package element. The 4182193267Sjkimoperator now properly returns zero (Uninitialized) in this case. 4183151937Sjkim 4184193267SjkimFixed a problem where the While operator used excessive memory by not 4185193267Sjkimproperly popping the result stack during execution. There was no memory leak 4186193267Sjkimafter execution, however. (Code provided by Valery Podrezov.) 4187151937Sjkim 4188193267SjkimFixed a problem where references to control methods within Package objects 4189193267Sjkimcaused the method to be invoked, instead of producing a reference object 4190193267Sjkimpointing to the method. 4191151937Sjkim 4192193267SjkimRestructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to 4193193267Sjkimimprove performance and reduce code size. (Code provided by Alexey 4194193267SjkimStarikovskiy.) 4195151937Sjkim 4196193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4197193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4198193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4199193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4200193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4201193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4202193267Sjkimthe compiler options used during generation. 4203151937Sjkim 4204151937Sjkim Previous Release: 4205151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4206151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4207151937Sjkim Current Release: 4208151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4209151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4210151937Sjkim 4211151937Sjkim 4212151937Sjkim2) iASL Compiler/Disassembler: 4213151937Sjkim 4214193267SjkimFixed a problem with the Return operator with no arguments. Since the AML 4215193267Sjkimgrammar for the byte encoding requires an operand for the Return opcode, the 4216193267Sjkimcompiler now emits a Return(Zero) for this case. An ACPI specification 4217193267Sjkimupdate has been written for this case. 4218151937Sjkim 4219193267SjkimFor tables other than the DSDT, namepath optimization is automatically 4220193267Sjkimdisabled. This is because SSDTs can be loaded anywhere in the namespace, the 4221193267Sjkimcompiler has no knowledge of where, and thus cannot optimize namepaths. 4222151937Sjkim 4223193267SjkimAdded "ProcessorObj" to the ObjectTypeKeyword list. This object type was 4224193267Sjkiminadvertently omitted from the ACPI specification, and will require an 4225193267Sjkimupdate to the spec. 4226151937Sjkim 4227193267SjkimThe source file scan for ASCII characters is now optional (-a). This change 4228193267Sjkimwas made because some vendors place non-ascii characters within comments. 4229193267SjkimHowever, the scan is simply a brute-force byte compare to ensure all 4230193267Sjkimcharacters in the file are in the range 0x00 to 0x7F. 4231151937Sjkim 4232193267SjkimFixed a problem with the CondRefOf operator where the compiler was 4233193267Sjkiminappropriately checking for the existence of the target. Since the point of 4234193267Sjkimthe operator is to check for the existence of the target at run-time, the 4235193267Sjkimcompiler no longer checks for the target existence. 4236151937Sjkim 4237193267SjkimFixed a problem where errors generated from the internal AML interpreter 4238193267Sjkimduring constant folding were not handled properly, causing a fault. 4239151937Sjkim 4240193267SjkimFixed a problem with overly aggressive range checking for the Stall 4241193267Sjkimoperator. The valid range (max 255) is now only checked if the operand is of 4242193267Sjkimtype Integer. All other operand types cannot be statically checked. 4243151937Sjkim 4244193267SjkimFixed a problem where control method references within the RefOf, DeRefOf, 4245193267Sjkimand ObjectType operators were not treated properly. They are now treated as 4246193267Sjkimactual references, not method invocations. 4247151937Sjkim 4248193267SjkimFixed and enhanced the "list namespace" option (-ln). This option was broken 4249193267Sjkima number of releases ago. 4250151937Sjkim 4251193267SjkimImproved error handling for the Field, IndexField, and BankField operators. 4252193267SjkimThe compiler now cleanly reports and recovers from errors in the field 4253193267Sjkimcomponent (FieldUnit) list. 4254151937Sjkim 4255193267SjkimFixed a disassembler problem where the optional ResourceDescriptor fields 4256193267SjkimTRS and TTP were not always handled correctly. 4257151937Sjkim 4258151937SjkimDisassembler - Comments in output now use "//" instead of "/*" 4259151937Sjkim 4260151937Sjkim---------------------------------------- 4261151937Sjkim28 February 2005. Summary of changes for version 20050228: 4262151937Sjkim 4263151937Sjkim1) ACPI CA Core Subsystem: 4264151937Sjkim 4265193267SjkimFixed a problem where the result of an Index() operator (an object 4266193267Sjkimreference) must increment the reference count on the target object for the 4267193267Sjkimlife of the object reference. 4268151937Sjkim 4269193267SjkimImplemented AML Interpreter and Debugger support for the new ACPI 3.0 4270193267SjkimExtended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace 4271193267Sjkimresource descriptors. 4272151937Sjkim 4273193267SjkimImplemented support in the _OSI method for the ACPI 3.0 "Extended Address 4274193267SjkimSpace Descriptor" string, indicating interpreter support for the descriptors 4275193267Sjkimabove. 4276151937Sjkim 4277151937SjkimImplemented header support for the new ACPI 3.0 FADT flag bits. 4278151937Sjkim 4279193267SjkimImplemented header support for the new ACPI 3.0 PCI Express bits for the PM1 4280193267Sjkimstatus/enable registers. 4281151937Sjkim 4282193267SjkimUpdated header support for the MADT processor local Apic struct and MADT 4283193267Sjkimplatform interrupt source struct for new ACPI 3.0 fields. 4284151937Sjkim 4285151937SjkimImplemented header support for the SRAT and SLIT ACPI tables. 4286151937Sjkim 4287193267SjkimImplemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag 4288193267Sjkimat runtime. 4289151937Sjkim 4290193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4291193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4292193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4293193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4294193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4295193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4296193267Sjkimthe compiler options used during generation. 4297151937Sjkim 4298151937Sjkim Previous Release: 4299151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4300151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4301151937Sjkim Current Release: 4302151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4303151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4304151937Sjkim 4305151937Sjkim 4306151937Sjkim2) iASL Compiler/Disassembler: 4307151937Sjkim 4308193267SjkimFixed a problem with the internal 64-bit String-to-integer conversion with 4309193267Sjkimstrings less than two characters long. 4310151937Sjkim 4311193267SjkimFixed a problem with constant folding where the result of the Index() 4312193267Sjkimoperator can not be considered a constant. This means that Index() cannot be 4313193267Sjkima type3 opcode and this will require an update to the ACPI specification. 4314151937Sjkim 4315193267SjkimDisassembler: Implemented support for the TTP, MTP, and TRS resource 4316193267Sjkimdescriptor fields. These fields were inadvertently ignored and not output in 4317193267Sjkimthe disassembly of the resource descriptor. 4318151937Sjkim 4319151937Sjkim 4320151937Sjkim ---------------------------------------- 4321151937Sjkim11 February 2005. Summary of changes for version 20050211: 4322151937Sjkim 4323151937Sjkim1) ACPI CA Core Subsystem: 4324151937Sjkim 4325193267SjkimImplemented ACPI 3.0 support for implicit conversion within the Match() 4326193267Sjkimoperator. MatchObjects can now be of type integer, buffer, or string instead 4327193267Sjkimof just type integer. Package elements are implicitly converted to the type 4328193267Sjkimof the MatchObject. This change aligns the behavior of Match() with the 4329193267Sjkimbehavior of the other logical operators (LLess(), etc.) It also requires an 4330193267Sjkimerrata change to the ACPI specification as this support was intended for 4331193267SjkimACPI 3.0, but was inadvertently omitted. 4332151937Sjkim 4333193267SjkimFixed a problem with the internal implicit "to buffer" conversion. Strings 4334193267Sjkimthat are converted to buffers will cause buffer truncation if the string is 4335193267Sjkimsmaller than the target buffer. Integers that are converted to buffers will 4336193267Sjkimnot cause buffer truncation, only zero extension (both as per the ACPI 4337193267Sjkimspec.) The problem was introduced when code was added to truncate the 4338193267Sjkimbuffer, but this should not be performed in all cases, only the string case. 4339151937Sjkim 4340193267SjkimFixed a problem with the Buffer and Package operators where the interpreter 4341193267Sjkimwould get confused if two such operators were used as operands to an ASL 4342193267Sjkimoperator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result 4343193267Sjkimstack was not being popped after the execution of these operators, resulting 4344193267Sjkimin an AE_NO_RETURN_VALUE exception. 4345151937Sjkim 4346193267SjkimFixed a problem with constructs of the form Store(Index(...),...). The 4347193267Sjkimreference object returned from Index was inadvertently resolved to an actual 4348193267Sjkimvalue. This problem was introduced in version 20050114 when the behavior of 4349193267SjkimStore() was modified to restrict the object types that can be used as the 4350151937Sjkimsource operand (to match the ACPI specification.) 4351151937Sjkim 4352193267SjkimReduced excessive stack use within the AcpiGetObjectInfo procedure. 4353151937Sjkim 4354193267SjkimAdded a fix to aclinux.h to allow generation of AcpiExec on Linux. 4355151937Sjkim 4356193267SjkimUpdated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct. 4357151937Sjkim 4358193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4359193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4360193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4361193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4362193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4363193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4364193267Sjkimthe compiler options used during generation. 4365151937Sjkim 4366151937Sjkim Previous Release: 4367151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4368151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4369151937Sjkim Current Release: 4370151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4371151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4372151937Sjkim 4373151937Sjkim 4374151937Sjkim2) iASL Compiler/Disassembler: 4375151937Sjkim 4376193267SjkimFixed a code generation problem in the constant folding optimization code 4377193267Sjkimwhere incorrect code was generated if a constant was reduced to a buffer 4378193267Sjkimobject (i.e., a reduced type 5 opcode.) 4379151937Sjkim 4380193267SjkimFixed a typechecking problem for the ToBuffer operator. Caused by an 4381193267Sjkimincorrect return type in the internal opcode information table. 4382151937Sjkim 4383151937Sjkim---------------------------------------- 4384151937Sjkim25 January 2005. Summary of changes for version 20050125: 4385151937Sjkim 4386151937Sjkim1) ACPI CA Core Subsystem: 4387151937Sjkim 4388193267SjkimFixed a recently introduced problem with the Global Lock where the 4389193267Sjkimunderlying semaphore was not created. This problem was introduced in 4390193267Sjkimversion 20050114, and caused an AE_AML_NO_OPERAND exception during an 4391193267SjkimAcquire() operation on _GL. 4392151937Sjkim 4393193267SjkimThe local object cache is now optional, and is disabled by default. Both 4394193267SjkimAcpiExec and the iASL compiler enable the cache because they run in user 4395193267Sjkimmode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE 4396193267Sjkimto enable the local cache. 4397151937Sjkim 4398193267SjkimFixed an issue in the internal function AcpiUtEvaluateObject concerning the 4399193267Sjkimoptional "implicit return" support where an error was returned if no return 4400193267Sjkimobject was expected, but one was implicitly returned. AE_OK is now returned 4401193267Sjkimin this case and the implicitly returned object is deleted. 4402193267SjkimAcpiUtEvaluateObject is only occasionally used, and only to execute reserved 4403193267Sjkimmethods such as _STA and _INI where the return type is known up front. 4404151937Sjkim 4405193267SjkimFixed a few issues with the internal convert-to-integer code. It now returns 4406193267Sjkiman error if an attempt is made to convert a null string, a string of only 4407193267Sjkimblanks/tabs, or a zero-length buffer. This affects both implicit conversion 4408193267Sjkimand explicit conversion via the ToInteger() operator. 4409151937Sjkim 4410193267SjkimThe internal debug code in AcpiUtAcquireMutex has been commented out. It is 4411193267Sjkimnot needed for normal operation and should increase the performance of the 4412193267Sjkimentire subsystem. The code remains in case it is needed for debug purposes 4413193267Sjkimagain. 4414151937Sjkim 4415193267SjkimThe AcpiExec source and makefile are included in the Unix/Linux package for 4416193267Sjkimthe first time. 4417151937Sjkim 4418193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4419193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4420193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4421193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4422193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4423193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4424193267Sjkimthe compiler options used during generation. 4425151937Sjkim 4426151937Sjkim Previous Release: 4427151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 4428151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 4429151937Sjkim Current Release: 4430151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4431151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4432151937Sjkim 4433151937Sjkim2) iASL Compiler/Disassembler: 4434151937Sjkim 4435193267SjkimSwitch/Case support: A warning is now issued if the type of the Switch value 4436193267Sjkimcannot be determined at compile time. For example, Switch(Arg0) will 4437193267Sjkimgenerate the warning, and the type is assumed to be an integer. As per the 4438193267SjkimACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the 4439193267Sjkimwarning. 4440151937Sjkim 4441193267SjkimSwitch/Case support: Implemented support for buffer and string objects as 4442193267Sjkimthe switch value. This is an ACPI 3.0 feature, now that LEqual supports 4443193267Sjkimbuffers and strings. 4444151937Sjkim 4445193267SjkimSwitch/Case support: The emitted code for the LEqual() comparisons now uses 4446193267Sjkimthe switch value as the first operand, not the second. The case value is now 4447193267Sjkimthe second operand, and this allows the case value to be implicitly 4448193267Sjkimconverted to the type of the switch value, not the other way around. 4449151937Sjkim 4450193267SjkimSwitch/Case support: Temporary variables are now emitted immediately within 4451193267Sjkimthe control method, not at the global level. This means that there are now 4452193267Sjkim36 temps available per-method, not 36 temps per-module as was the case with 4453193267Sjkimthe earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.) 4454151937Sjkim 4455151937Sjkim---------------------------------------- 4456151937Sjkim14 January 2005. Summary of changes for version 20050114: 4457151937Sjkim 4458193267SjkimAdded 2005 copyright to all module headers. This affects every module in 4459193267Sjkimthe core subsystem, iASL compiler, and the utilities. 4460151937Sjkim 4461151937Sjkim1) ACPI CA Core Subsystem: 4462151937Sjkim 4463193267SjkimFixed an issue with the String-to-Buffer conversion code where the string 4464193267Sjkimnull terminator was not included in the buffer after conversion, but there 4465193267Sjkimis existing ASL that assumes the string null terminator is included. This is 4466193267Sjkimthe root of the ACPI_AML_BUFFER_LIMIT regression. This problem was 4467193267Sjkimintroduced in the previous version when the code was updated to correctly 4468193267Sjkimset the converted buffer size as per the ACPI specification. The ACPI spec 4469193267Sjkimis ambiguous and will be updated to specify that the null terminator must be 4470193267Sjkimincluded in the converted buffer. This also affects the ToBuffer() ASL 4471193267Sjkimoperator. 4472151937Sjkim 4473193267SjkimFixed a problem with the Mid() ASL/AML operator where it did not work 4474193267Sjkimcorrectly on Buffer objects. Newly created sub-buffers were not being marked 4475193267Sjkimas initialized. 4476151937Sjkim 4477167802Sjkim 4478193267SjkimFixed a problem in AcpiTbFindTable where incorrect string compares were 4479193267Sjkimperformed on the OemId and OemTableId table header fields. These fields are 4480193267Sjkimnot null terminated, so strncmp is now used instead of strcmp. 4481151937Sjkim 4482193267SjkimImplemented a restriction on the Store() ASL/AML operator to align the 4483193267Sjkimbehavior with the ACPI specification. Previously, any object could be used 4484193267Sjkimas the source operand. Now, the only objects that may be used are Integers, 4485193267SjkimBuffers, Strings, Packages, Object References, and DDB Handles. If 4486193267Sjkimnecessary, the original behavior can be restored by enabling the 4487151937SjkimEnableInterpreterSlack flag. 4488151937Sjkim 4489193267SjkimEnhanced the optional "implicit return" support to allow an implicit return 4490193267Sjkimvalue from methods that are invoked externally via the AcpiEvaluateObject 4491193267Sjkiminterface. This enables implicit returns from the _STA and _INI methods, 4492193267Sjkimfor example. 4493151937Sjkim 4494193267SjkimChanged the Revision() ASL/AML operator to return the current version of the 4495193267SjkimAML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned 4496193267Sjkimthe supported ACPI version (This is the function of the _REV method). 4497151937Sjkim 4498193267SjkimUpdated the _REV predefined method to return the currently supported version 4499193267Sjkimof ACPI, now 3. 4500151937Sjkim 4501151937SjkimImplemented batch mode option for the AcpiExec utility (-b). 4502151937Sjkim 4503193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4504193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4505193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4506193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4507193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4508193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4509193267Sjkimthe compiler options used during generation. 4510151937Sjkim 4511151937Sjkim Previous Release: 4512151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4513151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 4514151937Sjkim Current Release: 4515151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 4516151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 4517151937Sjkim 4518151937Sjkim---------------------------------------- 4519151937Sjkim10 December 2004. Summary of changes for version 20041210: 4520151937Sjkim 4521193267SjkimACPI 3.0 support is nearing completion in both the iASL compiler and the 4522193267SjkimACPI CA core subsystem. 4523151937Sjkim 4524151937Sjkim1) ACPI CA Core Subsystem: 4525151937Sjkim 4526193267SjkimFixed a problem in the ToDecimalString operator where the resulting string 4527193267Sjkimlength was incorrectly calculated. The length is now calculated exactly, 4528193267Sjkimeliminating incorrect AE_STRING_LIMIT exceptions. 4529151937Sjkim 4530193267SjkimFixed a problem in the ToHexString operator to allow a maximum 200 character 4531193267Sjkimstring to be produced. 4532151937Sjkim 4533193267SjkimFixed a problem in the internal string-to-buffer and buffer-to-buffer copy 4534193267Sjkimroutine where the length of the resulting buffer was not truncated to the 4535193267Sjkimnew size (if the target buffer already existed). 4536151937Sjkim 4537193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4538193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4539193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4540193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4541193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4542193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4543193267Sjkimthe compiler options used during generation. 4544151937Sjkim 4545151937Sjkim Previous Release: 4546151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4547151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 4548151937Sjkim Current Release: 4549151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4550151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 4551151937Sjkim 4552151937Sjkim 4553151937Sjkim2) iASL Compiler/Disassembler: 4554151937Sjkim 4555193267SjkimImplemented the new ACPI 3.0 resource template macros - DWordSpace, 4556193267SjkimExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace. 4557193267SjkimIncludes support in the disassembler. 4558151937Sjkim 4559193267SjkimImplemented support for the new (ACPI 3.0) parameter to the Register macro, 4560193267SjkimAccessSize. 4561151937Sjkim 4562193267SjkimFixed a problem where the _HE resource name for the Interrupt macro was 4563193267Sjkimreferencing bit 0 instead of bit 1. 4564151937Sjkim 4565193267SjkimImplemented check for maximum 255 interrupts in the Interrupt macro. 4566151937Sjkim 4567193267SjkimFixed a problem with the predefined resource descriptor names where 4568193267Sjkimincorrect AML code was generated if the offset within the resource buffer 4569193267Sjkimwas 0 or 1. The optimizer shortened the AML code to a single byte opcode 4570193267Sjkimbut did not update the surrounding package lengths. 4571151937Sjkim 4572193267SjkimChanges to the Dma macro: All channels within the channel list must be in 4573193267Sjkimthe range 0-7. Maximum 8 channels can be specified. BusMaster operand is 4574193267Sjkimoptional (default is BusMaster). 4575151937Sjkim 4576193267SjkimImplemented check for maximum 7 data bytes for the VendorShort macro. 4577151937Sjkim 4578193267SjkimThe ReadWrite parameter is now optional for the Memory32 and similar macros. 4579151937Sjkim 4580151937Sjkim---------------------------------------- 4581151937Sjkim03 December 2004. Summary of changes for version 20041203: 4582151937Sjkim 4583151937Sjkim1) ACPI CA Core Subsystem: 4584151937Sjkim 4585193267SjkimThe low-level field insertion/extraction code (exfldio) has been completely 4586193267Sjkimrewritten to eliminate unnecessary complexity, bugs, and boundary 4587193267Sjkimconditions. 4588151937Sjkim 4589193267SjkimFixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString 4590193267Sjkimoperators where the input operand could be inadvertently deleted if no 4591193267Sjkimconversion was necessary (e.g., if the input to ToInteger was an Integer 4592193267Sjkimobject.) 4593151937Sjkim 4594193267SjkimFixed a problem with the ToDecimalString and ToHexString where an incorrect 4595193267Sjkimexception code was returned if the resulting string would be > 200 chars. 4596193267SjkimAE_STRING_LIMIT is now returned. 4597151937Sjkim 4598193267SjkimFixed a problem with the Concatenate operator where AE_OK was always 4599193267Sjkimreturned, even if the operation failed. 4600151937Sjkim 4601193267SjkimFixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128 4602193267Sjkimsemaphores to be allocated. 4603151937Sjkim 4604193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4605193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4606193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4607193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4608193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4609193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4610193267Sjkimthe compiler options used during generation. 4611151937Sjkim 4612151937Sjkim Previous Release: 4613151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4614151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4615151937Sjkim Current Release: 4616151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4617151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 4618151937Sjkim 4619151937Sjkim 4620151937Sjkim2) iASL Compiler/Disassembler: 4621151937Sjkim 4622193267SjkimFixed typechecking for the ObjectType and SizeOf operators. Problem was 4623193267Sjkimrecently introduced in 20041119. 4624151937Sjkim 4625193267SjkimFixed a problem with the ToUUID macro where the upper nybble of each buffer 4626193267Sjkimbyte was inadvertently set to zero. 4627151937Sjkim 4628151937Sjkim---------------------------------------- 4629138287Smarks19 November 2004. Summary of changes for version 20041119: 4630138287Smarks 4631138287Smarks1) ACPI CA Core Subsystem: 4632138287Smarks 4633193267SjkimFixed a problem in the internal ConvertToInteger routine where new integers 4634193267Sjkimwere not truncated to 32 bits for 32-bit ACPI tables. This routine converts 4635193267Sjkimbuffers and strings to integers. 4636138287Smarks 4637193267SjkimImplemented support to store a value to an Index() on a String object. This 4638193267Sjkimis an ACPI 2.0 feature that had not yet been implemented. 4639138287Smarks 4640193267SjkimImplemented new behavior for storing objects to individual package elements 4641193267Sjkim(via the Index() operator). The previous behavior was to invoke the implicit 4642193267Sjkimconversion rules if an object was already present at the index. The new 4643193267Sjkimbehavior is to simply delete any existing object and directly store the new 4644193267Sjkimobject. Although the ACPI specification seems unclear on this subject, other 4645193267SjkimACPI implementations behave in this manner. (This is the root of the 4646193267SjkimAE_BAD_HEX_CONSTANT issue.) 4647138287Smarks 4648193267SjkimModified the RSDP memory scan mechanism to support the extended checksum for 4649193267SjkimACPI 2.0 (and above) RSDPs. Note that the search continues until a valid 4650193267SjkimRSDP signature is found with a valid checksum. 4651138287Smarks 4652193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4653193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4654193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4655193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4656193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4657193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4658193267Sjkimthe compiler options used during generation. 4659138287Smarks 4660151937Sjkim Previous Release: 4661151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4662151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4663151937Sjkim Current Release: 4664151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4665151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4666138287Smarks 4667138287Smarks 4668138287Smarks2) iASL Compiler/Disassembler: 4669138287Smarks 4670138287SmarksFixed a missing semicolon in the aslcompiler.y file. 4671138287Smarks 4672138287Smarks---------------------------------------- 4673138287Smarks05 November 2004. Summary of changes for version 20041105: 4674138287Smarks 4675138287Smarks1) ACPI CA Core Subsystem: 4676138287Smarks 4677193267SjkimImplemented support for FADT revision 2. This was an interim table (between 4678193267SjkimACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register. 4679138287Smarks 4680193267SjkimImplemented optional support to allow uninitialized LocalX and ArgX 4681193267Sjkimvariables in a control method. The variables are initialized to an Integer 4682193267Sjkimobject with a value of zero. This support is enabled by setting the 4683193267SjkimAcpiGbl_EnableInterpreterSlack flag to TRUE. 4684138287Smarks 4685193267SjkimImplemented support for Integer objects for the SizeOf operator. Either 4 4686193267Sjkimor 8 is returned, depending on the current integer size (32-bit or 64-bit, 4687193267Sjkimdepending on the parent table revision). 4688138287Smarks 4689193267SjkimFixed a problem in the implementation of the SizeOf and ObjectType operators 4690193267Sjkimwhere the operand was resolved to a value too early, causing incorrect 4691193267Sjkimreturn values for some objects. 4692138287Smarks 4693138287SmarksFixed some possible memory leaks during exceptional conditions. 4694138287Smarks 4695193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4696193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4697193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4698193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4699193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4700193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4701193267Sjkimthe compiler options used during generation. 4702138287Smarks 4703138287Smarks Previous Release: 4704138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 4705138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 4706138287Smarks Current Release: 4707138287Smarks Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4708138287Smarks Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4709138287Smarks 4710138287Smarks 4711138287Smarks2) iASL Compiler/Disassembler: 4712138287Smarks 4713138287SmarksImplemented support for all ACPI 3.0 reserved names and methods. 4714138287Smarks 4715193267SjkimImplemented all ACPI 3.0 grammar elements in the front-end, including 4716193267Sjkimsupport for semicolons. 4717138287Smarks 4718138287SmarksImplemented the ACPI 3.0 Function() and ToUUID() macros 4719138287Smarks 4720193267SjkimFixed a problem in the disassembler where a Scope() operator would not be 4721193267Sjkimemitted properly if the target of the scope was in another table. 4722138287Smarks 4723138287Smarks---------------------------------------- 4724138287Smarks15 October 2004. Summary of changes for version 20041015: 4725138287Smarks 4726193267SjkimNote: ACPI CA is currently undergoing an in-depth and complete formal 4727193267Sjkimevaluation to test/verify the following areas. Other suggestions are 4728193267Sjkimwelcome. This will result in an increase in the frequency of releases and 4729193267Sjkimthe number of bug fixes in the next few months. 4730138287Smarks - Functional tests for all ASL/AML operators 4731138287Smarks - All implicit/explicit type conversions 4732138287Smarks - Bit fields and operation regions 4733138287Smarks - 64-bit math support and 32-bit-only "truncated" math support 4734138287Smarks - Exceptional conditions, both compiler and interpreter 4735138287Smarks - Dynamic object deletion and memory leaks 4736138287Smarks - ACPI 3.0 support when implemented 4737138287Smarks - External interfaces to the ACPI subsystem 4738138287Smarks 4739138287Smarks 4740138287Smarks1) ACPI CA Core Subsystem: 4741138287Smarks 4742193267SjkimFixed two alignment issues on 64-bit platforms - within debug statements in 4743193267SjkimAcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address 4744193267Sjkimfield within the non-aligned ACPI generic address structure. 4745138287Smarks 4746193267SjkimFixed a problem in the Increment and Decrement operators where incorrect 4747193267Sjkimoperand resolution could result in the inadvertent modification of the 4748193267Sjkimoriginal integer when the integer is passed into another method as an 4749193267Sjkimargument and the arg is then incremented/decremented. 4750138287Smarks 4751193267SjkimFixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit 4752193267SjkimBCD number were truncated during conversion. 4753138287Smarks 4754193267SjkimFixed a problem in the ToDecimal operator where the length of the resulting 4755193267Sjkimstring could be set incorrectly too long if the input operand was a Buffer 4756193267Sjkimobject. 4757138287Smarks 4758193267SjkimFixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0) 4759193267Sjkimwithin a buffer would prematurely terminate a compare between buffer 4760193267Sjkimobjects. 4761138287Smarks 4762193267SjkimAdded a check for string overflow (>200 characters as per the ACPI 4763193267Sjkimspecification) during the Concatenate operator with two string operands. 4764138287Smarks 4765193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4766193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4767193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4768193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4769193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4770193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4771193267Sjkimthe compiler options used during generation. 4772138287Smarks 4773138287Smarks Previous Release: 4774138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 4775138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 4776138287Smarks Current Release: 4777138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 4778138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 4779138287Smarks 4780138287Smarks 4781167802Sjkim 4782138287Smarks2) iASL Compiler/Disassembler: 4783138287Smarks 4784193267SjkimAllow the use of the ObjectType operator on uninitialized Locals and Args 4785193267Sjkim(returns 0 as per the ACPI specification). 4786138287Smarks 4787193267SjkimFixed a problem where the compiler would fault if there was a syntax error 4788193267Sjkimin the FieldName of all of the various CreateXXXField operators. 4789138287Smarks 4790193267SjkimDisallow the use of lower case letters within the EISAID macro, as per the 4791193267SjkimACPI specification. All EISAID strings must be of the form "UUUNNNN" Where 4792193267SjkimU is an uppercase letter and N is a hex digit. 4793138287Smarks 4794138287Smarks 4795138287Smarks---------------------------------------- 4796138287Smarks06 October 2004. Summary of changes for version 20041006: 4797138287Smarks 4798138287Smarks1) ACPI CA Core Subsystem: 4799138287Smarks 4800193267SjkimImplemented support for the ACPI 3.0 Timer operator. This ASL function 4801193267Sjkimimplements a 64-bit timer with 100 nanosecond granularity. 4802138287Smarks 4803193267SjkimDefined a new OSL interface, AcpiOsGetTimer. This interface is used to 4804193267Sjkimimplement the ACPI 3.0 Timer operator. This allows the host OS to implement 4805193267Sjkimthe timer with the best clock available. Also, it keeps the core subsystem 4806193267Sjkimout of the clock handling business, since the host OS (usually) performs 4807193267Sjkimthis function. 4808138287Smarks 4809193267SjkimFixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write) 4810193267Sjkimfunctions use a 64-bit address which is part of the packed ACPI Generic 4811193267SjkimAddress Structure. Since the structure is non-aligned, the alignment macros 4812193267Sjkimare now used to extract the address to a local variable before use. 4813138287Smarks 4814193267SjkimFixed a problem where the ToInteger operator assumed all input strings were 4815193267Sjkimhexadecimal. The operator now handles both decimal strings and hex strings 4816193267Sjkim(prefixed with "0x"). 4817138287Smarks 4818193267SjkimFixed a problem where the string length in the string object created as a 4819193267Sjkimresult of the internal ConvertToString procedure could be incorrect. This 4820193267Sjkimpotentially affected all implicit conversions and also the ToDecimalString 4821193267Sjkimand ToHexString operators. 4822138287Smarks 4823193267SjkimFixed two problems in the ToString operator. If the length parameter was 4824193267Sjkimzero, an incorrect string object was created and the value of the input 4825193267Sjkimlength parameter was inadvertently changed from zero to Ones. 4826138287Smarks 4827193267SjkimFixed a problem where the optional ResourceSource string in the ExtendedIRQ 4828193267Sjkimresource macro was ignored. 4829138287Smarks 4830193267SjkimSimplified the interfaces to the internal division functions, reducing code 4831193267Sjkimsize and complexity. 4832138287Smarks 4833193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4834193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4835193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4836193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4837193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4838193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4839193267Sjkimthe compiler options used during generation. 4840138287Smarks 4841138287Smarks Previous Release: 4842138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 4843138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 4844138287Smarks Current Release: 4845138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 4846138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 4847138287Smarks 4848138287Smarks 4849138287Smarks2) iASL Compiler/Disassembler: 4850138287Smarks 4851138287SmarksImplemented support for the ACPI 3.0 Timer operator. 4852138287Smarks 4853193267SjkimFixed a problem where the Default() operator was inadvertently ignored in a 4854193267SjkimSwitch/Case block. This was a problem in the translation of the Switch 4855193267Sjkimstatement to If...Else pairs. 4856138287Smarks 4857193267SjkimAdded support to allow a standalone Return operator, with no parentheses (or 4858193267Sjkimoperands). 4859138287Smarks 4860193267SjkimFixed a problem with code generation for the ElseIf operator where the 4861193267Sjkimtranslated Else...If parse tree was improperly constructed leading to the 4862193267Sjkimloss of some code. 4863138287Smarks 4864138287Smarks---------------------------------------- 4865138287Smarks22 September 2004. Summary of changes for version 20040922: 4866138287Smarks 4867138287Smarks1) ACPI CA Core Subsystem: 4868138287Smarks 4869193267SjkimFixed a problem with the implementation of the LNot() operator where "Ones" 4870193267Sjkimwas not returned for the TRUE case. Changed the code to return Ones instead 4871193267Sjkimof (!Arg) which was usually 1. This change affects iASL constant folding for 4872193267Sjkimthis operator also. 4873138287Smarks 4874193267SjkimFixed a problem in AcpiUtInitializeBuffer where an existing buffer was not 4875193267Sjkiminitialized properly -- Now zero the entire buffer in this case where the 4876193267Sjkimbuffer already exists. 4877138287Smarks 4878193267SjkimChanged the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 4879193267SjkimMilliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all 4880193267Sjkimrelated code considerably. This will require changes/updates to all OS 4881193267Sjkiminterface layers (OSLs.) 4882138287Smarks 4883193267SjkimImplemented a new external interface, AcpiInstallExceptionHandler, to allow 4884193267Sjkima system exception handler to be installed. This handler is invoked upon any 4885193267Sjkimrun-time exception that occurs during control method execution. 4886138287Smarks 4887193267SjkimAdded support for the DSDT in AcpiTbFindTable. This allows the 4888138287SmarksDataTableRegion() operator to access the local copy of the DSDT. 4889138287Smarks 4890193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4891193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4892193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4893193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4894193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4895193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4896193267Sjkimthe compiler options used during generation. 4897138287Smarks 4898138287Smarks Previous Release: 4899138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 4900138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 4901138287Smarks Current Release: 4902138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 4903138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 4904138287Smarks 4905138287Smarks 4906138287Smarks2) iASL Compiler/Disassembler: 4907138287Smarks 4908193267SjkimFixed a problem with constant folding and the LNot operator. LNot was 4909193267Sjkimreturning 1 in the TRUE case, not Ones as per the ACPI specification. This 4910193267Sjkimcould result in the generation of an incorrect folded/reduced constant. 4911138287Smarks 4912193267SjkimEnd-Of-File is now allowed within a "//"-style comment. A parse error no 4913193267Sjkimlonger occurs if such a comment is at the very end of the input ASL source 4914193267Sjkimfile. 4915138287Smarks 4916193267SjkimImplemented the "-r" option to override the Revision in the table header. 4917193267SjkimThe initial use of this option will be to simplify the evaluation of the AML 4918193267Sjkiminterpreter by allowing a single ASL source module to be compiled for either 4919193267Sjkim32-bit or 64-bit integers. 4920138287Smarks 4921138287Smarks 4922138287Smarks---------------------------------------- 4923138287Smarks27 August 2004. Summary of changes for version 20040827: 4924138287Smarks 4925138287Smarks1) ACPI CA Core Subsystem: 4926138287Smarks 4927193267Sjkim- Implemented support for implicit object conversion in the non-numeric 4928193267Sjkimlogical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and 4929193267SjkimLNotEqual.) Any combination of Integers/Strings/Buffers may now be used; 4930193267Sjkimthe second operand is implicitly converted on the fly to match the type of 4931193267Sjkimthe first operand. For example: 4932138287Smarks 4933138287Smarks LEqual (Source1, Source2) 4934138287Smarks 4935193267SjkimSource1 and Source2 must each evaluate to an integer, a string, or a buffer. 4936193267SjkimThe data type of Source1 dictates the required type of Source2. Source2 is 4937193267Sjkimimplicitly converted if necessary to match the type of Source1. 4938138287Smarks 4939193267Sjkim- Updated and corrected the behavior of the string conversion support. The 4940193267Sjkimrules concerning conversion of buffers to strings (according to the ACPI 4941193267Sjkimspecification) are as follows: 4942138287Smarks 4943193267SjkimToDecimalString - explicit byte-wise conversion of buffer to string of 4944193267Sjkimdecimal values (0-255) separated by commas. ToHexString - explicit byte-wise 4945193267Sjkimconversion of buffer to string of hex values (0-FF) separated by commas. 4946193267SjkimToString - explicit byte-wise conversion of buffer to string. Byte-by-byte 4947193267Sjkimcopy with no transform except NULL terminated. Any other implicit buffer-to- 4948193267Sjkimstring conversion - byte-wise conversion of buffer to string of hex values 4949193267Sjkim(0-FF) separated by spaces. 4950138287Smarks 4951138287Smarks- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. 4952138287Smarks 4953193267Sjkim- Fixed a problem in AcpiNsGetPathnameLength where the returned length was 4954193267Sjkimone byte too short in the case of a node in the root scope. This could 4955193267Sjkimcause a fault during debug output. 4956138287Smarks 4957193267Sjkim- Code and Data Size: Current and previous core subsystem library sizes are 4958193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4959193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4960193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4961193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4962193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4963193267Sjkimthe compiler options used during generation. 4964138287Smarks 4965138287Smarks Previous Release: 4966138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 4967138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 4968138287Smarks Current Release: 4969138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 4970138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 4971138287Smarks 4972138287Smarks 4973138287Smarks2) iASL Compiler/Disassembler: 4974138287Smarks 4975138287Smarks- Fixed a Linux generation error. 4976138287Smarks 4977138287Smarks 4978138287Smarks---------------------------------------- 4979138287Smarks16 August 2004. Summary of changes for version 20040816: 4980138287Smarks 4981138287Smarks1) ACPI CA Core Subsystem: 4982138287Smarks 4983193267SjkimDesigned and implemented support within the AML interpreter for the so- 4984193267Sjkimcalled "implicit return". This support returns the result of the last ASL 4985193267Sjkimoperation within a control method, in the absence of an explicit Return() 4986193267Sjkimoperator. A few machines depend on this behavior, even though it is not 4987193267Sjkimexplicitly supported by the ASL language. It is optional support that can 4988193267Sjkimbe enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag. 4989138287Smarks 4990193267SjkimRemoved support for the PCI_Config address space from the internal low level 4991193267Sjkimhardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This 4992193267Sjkimsupport was not used internally, and would not work correctly anyway because 4993193267Sjkimthe PCI bus number and segment number were not supported. There are 4994193267Sjkimseparate interfaces for PCI configuration space access because of the unique 4995138287Smarksinterface. 4996138287Smarks 4997193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4998193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4999193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5000193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5001193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5002193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5003193267Sjkimthe compiler options used during generation. 5004138287Smarks 5005138287Smarks Previous Release: 5006138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5007138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5008138287Smarks Current Release: 5009138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5010138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5011138287Smarks 5012138287Smarks 5013138287Smarks2) iASL Compiler/Disassembler: 5014138287Smarks 5015193267SjkimFixed a problem where constants in ASL expressions at the root level (not 5016193267Sjkimwithin a control method) could be inadvertently truncated during code 5017193267Sjkimgeneration. This problem was introduced in the 20040715 release. 5018138287Smarks 5019138287Smarks 5020138287Smarks---------------------------------------- 5021138287Smarks15 July 2004. Summary of changes for version 20040715: 5022138287Smarks 5023138287Smarks1) ACPI CA Core Subsystem: 5024138287Smarks 5025193267SjkimRestructured the internal HW GPE interfaces to pass/track the current state 5026193267Sjkimof interrupts (enabled/disabled) in order to avoid possible deadlock and 5027193267Sjkimincrease flexibility of the interfaces. 5028138287Smarks 5029193267SjkimImplemented a "lexicographical compare" for String and Buffer objects within 5030193267Sjkimthe logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -- 5031193267Sjkimas per further clarification to the ACPI specification. Behavior is similar 5032193267Sjkimto C library "strcmp". 5033138287Smarks 5034193267SjkimCompleted a major reduction in CPU stack use for the AcpiGetFirmwareTable 5035193267Sjkimexternal function. In the 32-bit non-debug case, the stack use has been 5036193267Sjkimreduced from 168 bytes to 32 bytes. 5037138287Smarks 5038193267SjkimDeployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack, 5039193267Sjkimwhose purpose is to allow the AML interpreter to forgive certain bad AML 5040193267Sjkimconstructs. Default setting is FALSE. 5041138287Smarks 5042193267SjkimImplemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO 5043193267Sjkimsupport code. If enabled, it allows field access to go beyond the end of a 5044193267Sjkimregion definition if the field is within the region length rounded up to the 5045193267Sjkimnext access width boundary (a common coding error.) 5046138287Smarks 5047193267SjkimRenamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to 5048193267SjkimACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these 5049193267Sjkimsymbols are lowercased by the latest version of the AcpiSrc tool. 5050138287Smarks 5051193267SjkimThe prototypes for the PCI interfaces in acpiosxf.h have been updated to 5052193267Sjkimrename "Register" to simply "Reg" to prevent certain compilers from 5053193267Sjkimcomplaining. 5054138287Smarks 5055193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5056193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5057193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5058193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5059193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5060193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5061193267Sjkimthe compiler options used during generation. 5062138287Smarks 5063138287Smarks Previous Release: 5064138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5065138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5066138287Smarks Current Release: 5067138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5068138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5069138287Smarks 5070138287Smarks 5071138287Smarks2) iASL Compiler/Disassembler: 5072138287Smarks 5073193267SjkimImplemented full support for Package objects within the Case() operator. 5074193267SjkimNote: The Break() operator is currently not supported within Case blocks 5075193267Sjkim(TermLists) as there is some question about backward compatibility with ACPI 5076193267Sjkim1.0 interpreters. 5077138287Smarks 5078167802Sjkim 5079193267SjkimFixed a problem where complex terms were not supported properly within the 5080193267SjkimSwitch() operator. 5081138287Smarks 5082193267SjkimEliminated extraneous warning for compiler-emitted reserved names of the 5083193267Sjkimform "_T_x". (Used in Switch/Case operators.) 5084138287Smarks 5085193267SjkimEliminated optimization messages for "_T_x" objects and small constants 5086193267Sjkimwithin the DefinitionBlock operator. 5087138287Smarks 5088138287Smarks 5089138287Smarks---------------------------------------- 5090138287Smarks15 June 2004. Summary of changes for version 20040615: 5091138287Smarks 5092138287Smarks1) ACPI CA Core Subsystem: 5093138287Smarks 5094193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5095193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5096193267SjkimLLessEqual. 5097138287Smarks 5098193267SjkimAll directory names in the entire source package are lower case, as they 5099193267Sjkimwere in earlier releases. 5100138287Smarks 5101193267SjkimImplemented "Disassemble" command in the AML debugger that will disassemble 5102193267Sjkima single control method. 5103138287Smarks 5104193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5105193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5106193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5107193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5108193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5109193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5110193267Sjkimthe compiler options used during generation. 5111138287Smarks 5112138287Smarks Previous Release: 5113138287Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5114138287Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5115167802Sjkim 5116138287Smarks Current Release: 5117138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5118138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5119138287Smarks 5120138287Smarks 5121138287Smarks2) iASL Compiler/Disassembler: 5122138287Smarks 5123193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5124193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5125193267SjkimLLessEqual. 5126138287Smarks 5127193267SjkimAll directory names in the entire source package are lower case, as they 5128193267Sjkimwere in earlier releases. 5129138287Smarks 5130193267SjkimFixed a fault when using the -g or -d<nofilename> options if the FADT was 5131193267Sjkimnot found. 5132138287Smarks 5133193267SjkimFixed an issue with the Windows version of the compiler where later versions 5134193267Sjkimof Windows place the FADT in the registry under the name "FADT" and not 5135193267Sjkim"FACP" as earlier versions did. This applies when using the -g or - 5136193267Sjkimd<nofilename> options. The compiler now looks for both strings as 5137193267Sjkimnecessary. 5138138287Smarks 5139193267SjkimFixed a problem with compiler namepath optimization where a namepath within 5140193267Sjkimthe Scope() operator could not be optimized if the namepath was a subpath of 5141193267Sjkimthe current scope path. 5142138287Smarks 5143138287Smarks---------------------------------------- 5144131440Smarks27 May 2004. Summary of changes for version 20040527: 5145131440Smarks 5146131440Smarks1) ACPI CA Core Subsystem: 5147131440Smarks 5148193267SjkimCompleted a new design and implementation for EBDA (Extended BIOS Data Area) 5149193267Sjkimsupport in the RSDP scan code. The original code improperly scanned for the 5150193267SjkimEBDA by simply scanning from memory location 0 to 0x400. The correct method 5151193267Sjkimis to first obtain the EBDA pointer from within the BIOS data area, then 5152193267Sjkimscan 1K of memory starting at the EBDA pointer. There appear to be few if 5153131440Smarksany machines that place the RSDP in the EBDA, however. 5154131440Smarks 5155193267SjkimIntegrated a fix for a possible fault during evaluation of BufferField 5156193267Sjkimarguments. Obsolete code that was causing the problem was removed. 5157131440Smarks 5158193267SjkimFound and fixed a problem in the Field Support Code where data could be 5159193267Sjkimcorrupted on a bit field read that starts on an aligned boundary but does 5160193267Sjkimnot end on an aligned boundary. Merged the read/write "datum length" 5161193267Sjkimcalculation code into a common procedure. 5162131440Smarks 5163131440SmarksRolled in a couple of changes to the FreeBSD-specific header. 5164131440Smarks 5165167802Sjkim 5166193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5167193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5168193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5169193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5170193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5171193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5172193267Sjkimthe compiler options used during generation. 5173131440Smarks 5174131440Smarks Previous Release: 5175131440Smarks Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5176131440Smarks Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5177131440Smarks Current Release: 5178131440Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5179131440Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5180131440Smarks 5181131440Smarks 5182131440Smarks2) iASL Compiler/Disassembler: 5183131440Smarks 5184193267SjkimFixed a generation warning produced by some overly-verbose compilers for a 5185193267Sjkim64-bit constant. 5186131440Smarks 5187131440Smarks---------------------------------------- 5188129684Snjl14 May 2004. Summary of changes for version 20040514: 5189129684Snjl 5190129684Snjl1) ACPI CA Core Subsystem: 5191129684Snjl 5192193267SjkimFixed a problem where hardware GPE enable bits sometimes not set properly 5193193267Sjkimduring and after GPE method execution. Result of 04/27 changes. 5194129684Snjl 5195129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 5196129684Snjl 5197193267SjkimRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single 5198193267SjkimAcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to 5199193267Sjkimthe new AcpiEv* calls as appropriate. 5200129684Snjl 5201193267SjkimACPI_OS_NAME was removed from the OS-specific headers. The default name is 5202193267Sjkimnow "Microsoft Windows NT" for maximum compatibility. However this can be 5203193267Sjkimchanged by modifying the acconfig.h file. 5204129684Snjl 5205193267SjkimAllow a single invocation of AcpiInstallNotifyHandler for a handler that 5206193267Sjkimtraps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag. 5207129684Snjl 5208193267SjkimRun _INI methods on ThermalZone objects. This is against the ACPI 5209193267Sjkimspecification, but there is apparently ASL code in the field that has these 5210193267Sjkim_INI methods, and apparently "other" AML interpreters execute them. 5211129684Snjl 5212193267SjkimPerformed a full 16/32/64 bit lint that resulted in some small changes. 5213129684Snjl 5214193267SjkimAdded a sleep simulation command to the AML debugger to test sleep code. 5215129684Snjl 5216193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5217193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5218193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5219193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5220193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5221193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5222193267Sjkimthe compiler options used during generation. 5223129684Snjl 5224129684Snjl Previous Release: 5225129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5226129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5227129684Snjl Current Release: 5228129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5229129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5230129684Snjl 5231129684Snjl---------------------------------------- 5232129684Snjl27 April 2004. Summary of changes for version 20040427: 5233129684Snjl 5234129684Snjl1) ACPI CA Core Subsystem: 5235129684Snjl 5236193267SjkimCompleted a major overhaul of the GPE handling within ACPI CA. There are 5237193267Sjkimnow three types of GPEs: wake-only, runtime-only, and combination wake/run. 5238193267SjkimThe only GPEs allowed to be combination wake/run are for button-style 5239193267Sjkimdevices such as a control-method power button, control-method sleep button, 5240193267Sjkimor a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not 5241193267Sjkimreferenced by any _PRW methods are marked for "runtime" and hardware 5242193267Sjkimenabled. Any GPE that is referenced by a _PRW method is marked for "wake" 5243193267Sjkim(and disabled at runtime). However, at sleep time, only those GPEs that 5244193267Sjkimhave been specifically enabled for wake via the AcpiEnableGpe interface will 5245193267Sjkimactually be hardware enabled. 5246129684Snjl 5247193267SjkimA new external interface has been added, AcpiSetGpeType(), that is meant to 5248193267Sjkimbe used by device drivers to force a GPE to a particular type. It will be 5249193267Sjkimespecially useful for the drivers for the button devices mentioned above. 5250129684Snjl 5251193267SjkimCompleted restructuring of the ACPI CA initialization sequence so that 5252193267Sjkimdefault operation region handlers are installed before GPEs are initialized 5253193267Sjkimand the _PRW methods are executed. This will prevent errors when the _PRW 5254193267Sjkimmethods attempt to access system memory or I/O space. 5255129684Snjl 5256193267SjkimGPE enable/disable no longer reads the GPE enable register. We now keep the 5257193267Sjkimenable info for runtime and wake separate and in the GPE_EVENT_INFO. We 5258193267Sjkimthus no longer depend on the hardware to maintain these bits. 5259129684Snjl 5260193267SjkimAlways clear the wake status and fixed/GPE status bits before sleep, even 5261193267Sjkimfor state S5. 5262129684Snjl 5263193267SjkimImproved the AML debugger output for displaying the GPE blocks and their 5264193267Sjkimcurrent status. 5265129684Snjl 5266193267SjkimAdded new strings for the _OSI method, of the form "Windows 2001 SPx" where 5267193267Sjkimx = 0,1,2,3,4. 5268129684Snjl 5269193267SjkimFixed a problem where the physical address was incorrectly calculated when 5270193267Sjkimthe Load() operator was used to directly load from an Operation Region (vs. 5271193267Sjkimloading from a Field object.) Also added check for minimum table length for 5272193267Sjkimthis case. 5273129684Snjl 5274193267SjkimFix for multiple mutex acquisition. Restore original thread SyncLevel on 5275193267Sjkimmutex release. 5276129684Snjl 5277193267SjkimAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 5278129684Snjlconsistency with the other fields returned. 5279129684Snjl 5280193267SjkimShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such 5281193267Sjkimstructure for each GPE in the system, so the size of this structure is 5282193267Sjkimimportant. 5283129684Snjl 5284193267SjkimCPU stack requirement reduction: Cleaned up the method execution and object 5285193267Sjkimevaluation paths so that now a parameter structure is passed, instead of 5286193267Sjkimcopying the various method parameters over and over again. 5287129684Snjl 5288193267SjkimIn evregion.c: Correctly exit and reenter the interpreter region if and 5289193267Sjkimonly if dispatching an operation region request to a user-installed handler. 5290193267SjkimDo not exit/reenter when dispatching to a default handler (e.g., default 5291193267Sjkimsystem memory or I/O handlers) 5292129684Snjl 5293129684Snjl 5294193267SjkimNotes for updating drivers for the new GPE support. The following changes 5295193267Sjkimmust be made to ACPI-related device drivers that are attached to one or more 5296193267SjkimGPEs: (This information will be added to the ACPI CA Programmer Reference.) 5297129684Snjl 5298193267Sjkim1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must 5299193267Sjkimexplicitly call AcpiEnableGpe. 5300193267Sjkim2) There is a new interface called AcpiSetGpeType. This should be called 5301193267Sjkimbefore enabling the GPE. Also, this interface will automatically disable 5302193267Sjkimthe GPE if it is currently enabled. 5303129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 5304129684Snjl 5305129684SnjlSpecific drivers that must be changed: 5306129684Snjl1) EC driver: 5307193267Sjkim AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 5308129684SnjlAeGpeHandler, NULL); 5309129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 5310129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 5311129684Snjl 5312129684Snjl2) Button Drivers (Power, Lid, Sleep): 5313129684SnjlRun _PRW method under parent device 5314129684SnjlIf _PRW exists: /* This is a control-method button */ 5315129684Snjl Extract GPE number and possibly GpeDevice 5316129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 5317129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 5318129684Snjl 5319193267SjkimFor all other devices that have _PRWs, we automatically set the GPE type to 5320193267SjkimACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This 5321193267Sjkimmust be done on a selective basis, usually requiring some kind of user app 5322193267Sjkimto allow the user to pick the wake devices. 5323129684Snjl 5324129684Snjl 5325193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5326193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5327193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5328193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5329193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5330193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5331193267Sjkimthe compiler options used during generation. 5332129684Snjl 5333129684Snjl Previous Release: 5334129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5335129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5336129684Snjl Current Release: 5337167802Sjkim 5338129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5339129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5340129684Snjl 5341129684Snjl 5342129684Snjl 5343129684Snjl---------------------------------------- 5344128212Snjl02 April 2004. Summary of changes for version 20040402: 5345128212Snjl 5346128212Snjl1) ACPI CA Core Subsystem: 5347128212Snjl 5348193267SjkimFixed an interpreter problem where an indirect store through an ArgX 5349193267Sjkimparameter was incorrectly applying the "implicit conversion rules" during 5350193267Sjkimthe store. From the ACPI specification: "If the target is a method local or 5351193267Sjkimargument (LocalX or ArgX), no conversion is performed and the result is 5352193267Sjkimstored directly to the target". The new behavior is to disable implicit 5353193267Sjkimconversion during ALL stores to an ArgX. 5354128212Snjl 5355193267SjkimChanged the behavior of the _PRW method scan to ignore any and all errors 5356193267Sjkimreturned by a given _PRW. This prevents the scan from aborting from the 5357193267Sjkimfailure of any single _PRW. 5358128212Snjl 5359193267SjkimMoved the runtime configuration parameters from the global init procedure to 5360193267Sjkimstatic variables in acglobal.h. This will allow the host to override the 5361193267Sjkimdefault values easily. 5362128212Snjl 5363193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5364193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5365193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5366193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5367193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5368193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5369193267Sjkimthe compiler options used during generation. 5370128212Snjl 5371128212Snjl Previous Release: 5372128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5373128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5374128212Snjl Current Release: 5375128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5376128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5377128212Snjl 5378128212Snjl 5379128212Snjl2) iASL Compiler/Disassembler: 5380128212Snjl 5381193267SjkimiASL now fully disassembles SSDTs. However, External() statements are not 5382193267Sjkimgenerated automatically for unresolved symbols at this time. This is a 5383193267Sjkimplanned feature for future implementation. 5384128212Snjl 5385193267SjkimFixed a scoping problem in the disassembler that occurs when the type of the 5386193267Sjkimtarget of a Scope() operator is overridden. This problem caused an 5387193267Sjkimincorrectly nested internal namespace to be constructed. 5388128212Snjl 5389193267SjkimAny warnings or errors that are emitted during disassembly are now commented 5390193267Sjkimout automatically so that the resulting file can be recompiled without any 5391193267Sjkimhand editing. 5392128212Snjl 5393128212Snjl---------------------------------------- 5394128212Snjl26 March 2004. Summary of changes for version 20040326: 5395128212Snjl 5396128212Snjl1) ACPI CA Core Subsystem: 5397128212Snjl 5398193267SjkimImplemented support for "wake" GPEs via interaction between GPEs and the 5399193267Sjkim_PRW methods. Every GPE that is pointed to by one or more _PRWs is 5400193267Sjkimidentified as a WAKE GPE and by default will no longer be enabled at 5401193267Sjkimruntime. Previously, we were blindly enabling all GPEs with a corresponding 5402193267Sjkim_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We 5403193267Sjkimbelieve this has been the cause of thousands of "spurious" GPEs on some 5404128212Snjlsystems. 5405128212Snjl 5406193267SjkimThis new GPE behavior is can be reverted to the original behavior (enable 5407193267SjkimALL GPEs at runtime) via a runtime flag. 5408128212Snjl 5409193267SjkimFixed a problem where aliased control methods could not access objects 5410193267Sjkimproperly. The proper scope within the namespace was not initialized 5411193267Sjkim(transferred to the target of the aliased method) before executing the 5412193267Sjkimtarget method. 5413128212Snjl 5414193267SjkimFixed a potential race condition on internal object deletion on the return 5415193267Sjkimobject in AcpiEvaluateObject. 5416128212Snjl 5417193267SjkimIntegrated a fix for resource descriptors where both _MEM and _MTP were 5418193267Sjkimbeing extracted instead of just _MEM. (i.e. bitmask was incorrectly too 5419193267Sjkimwide, 0x0F instead of 0x03.) 5420128212Snjl 5421193267SjkimAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a 5422193267Sjkimfault in some cases. 5423128212Snjl 5424128212SnjlUpdated Notify() values for debug statements in evmisc.c 5425128212Snjl 5426193267SjkimReturn proper status from AcpiUtMutexInitialize, not just simply AE_OK. 5427128212Snjl 5428193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5429193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5430193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5431193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5432193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5433193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5434193267Sjkimthe compiler options used during generation. 5435128212Snjl 5436128212Snjl Previous Release: 5437167802Sjkim 5438128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 5439128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 5440128212Snjl Current Release: 5441128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5442128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5443128212Snjl 5444128212Snjl---------------------------------------- 5445127175Snjl11 March 2004. Summary of changes for version 20040311: 5446127175Snjl 5447127175Snjl1) ACPI CA Core Subsystem: 5448127175Snjl 5449193267SjkimFixed a problem where errors occurring during the parse phase of control 5450193267Sjkimmethod execution did not abort cleanly. For example, objects created and 5451193267Sjkiminstalled in the namespace were not deleted. This caused all subsequent 5452193267Sjkiminvocations of the method to return the AE_ALREADY_EXISTS exception. 5453127175Snjl 5454193267SjkimImplemented a mechanism to force a control method to "Serialized" execution 5455193267Sjkimif the method attempts to create namespace objects. (The root of the 5456193267SjkimAE_ALREADY_EXISTS problem.) 5457127175Snjl 5458193267SjkimImplemented support for the predefined _OSI "internal" control method. 5459193267SjkimInitial supported strings are "Linux", "Windows 2000", "Windows 2001", and 5460193267Sjkim"Windows 2001.1", and can be easily upgraded for new strings as necessary. 5461193267SjkimThis feature will allow "other" operating systems to execute the fully 5462193267Sjkimtested, "Windows" code path through the ASL code 5463127175Snjl 5464193267SjkimGlobal Lock Support: Now allows multiple acquires and releases with any 5465193267Sjkiminternal thread. Removed concept of "owning thread" for this special mutex. 5466127175Snjl 5467193267SjkimFixed two functions that were inappropriately declaring large objects on the 5468193267SjkimCPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during 5469193267Sjkimmethod execution considerably. 5470127175Snjl 5471193267SjkimFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the 5472193267SjkimS4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT. 5473127175Snjl 5474193267SjkimFixed a problem where AcpiEvGpeDetect would fault if there were no GPEs 5475193267Sjkimdefined on the machine. 5476127175Snjl 5477193267SjkimImplemented two runtime options: One to force all control method execution 5478193267Sjkimto "Serialized" to mimic Windows behavior, another to disable _OSI support 5479193267Sjkimif it causes problems on a given machine. 5480127175Snjl 5481193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5482193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5483193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5484193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5485193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5486193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5487193267Sjkimthe compiler options used during generation. 5488127175Snjl 5489127175Snjl Previous Release: 5490127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 5491127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 5492127175Snjl Current Release: 5493127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 5494127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 5495127175Snjl 5496127175Snjl2) iASL Compiler/Disassembler: 5497127175Snjl 5498193267SjkimFixed an array size problem for FreeBSD that would cause the compiler to 5499193267Sjkimfault. 5500127175Snjl 5501127175Snjl---------------------------------------- 5502126372Snjl20 February 2004. Summary of changes for version 20040220: 5503126372Snjl 5504167802Sjkim 5505126372Snjl1) ACPI CA Core Subsystem: 5506126372Snjl 5507193267SjkimImplemented execution of _SxD methods for Device objects in the 5508126372SnjlGetObjectInfo interface. 5509126372Snjl 5510126372SnjlFixed calls to _SST method to pass the correct arguments. 5511126372Snjl 5512126372SnjlAdded a call to _SST on wake to restore to "working" state. 5513126372Snjl 5514193267SjkimCheck for End-Of-Buffer failure case in the WalkResources interface. 5515126372Snjl 5516193267SjkimIntegrated fix for 64-bit alignment issue in acglobal.h by moving two 5517193267Sjkimstructures to the beginning of the file. 5518126372Snjl 5519126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 5520126372Snjl 5521193267SjkimAfter wake, clear/enable power button. (Perhaps we should clear/enable all 5522193267Sjkimfixed events upon wake.) 5523126372Snjl 5524126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 5525126372Snjl 5526126372SnjlIntegrated latest acnetbsd.h file. 5527126372Snjl 5528126372Snjl---------------------------------------- 5529126372Snjl11 February 2004. Summary of changes for version 20040211: 5530126372Snjl 5531167802Sjkim 5532126372Snjl1) ACPI CA Core Subsystem: 5533126372Snjl 5534193267SjkimCompleted investigation and implementation of the call-by-reference 5535193267Sjkimmechanism for control method arguments. 5536126372Snjl 5537193267SjkimFixed a problem where a store of an object into an indexed package could 5538193267Sjkimfail if the store occurs within a different method than the method that 5539193267Sjkimcreated the package. 5540126372Snjl 5541193267SjkimFixed a problem where the ToDecimal operator could return incorrect results. 5542126372Snjl 5543193267SjkimFixed a problem where the CopyObject operator could fail on some of the more 5544193267Sjkimobscure objects (e.g., Reference objects.) 5545126372Snjl 5546193267SjkimImproved the output of the Debug object to display buffer, package, and 5547193267Sjkimindex objects. 5548126372Snjl 5549193267SjkimFixed a problem where constructs of the form "RefOf (ArgX)" did not return 5550193267Sjkimthe expected result. 5551126372Snjl 5552193267SjkimAdded permanent ACPI_REPORT_ERROR macros for all instances of the 5553126372SnjlACPI_AML_INTERNAL exception. 5554126372Snjl 5555126372SnjlIntegrated latest version of acfreebsd.h 5556126372Snjl 5557126372Snjl---------------------------------------- 5558126372Snjl16 January 2004. Summary of changes for version 20040116: 5559126372Snjl 5560193267SjkimThe purpose of this release is primarily to update the copyright years in 5561193267Sjkimeach module, thus causing a huge number of diffs. There are a few small 5562193267Sjkimfunctional changes, however. 5563126372Snjl 5564126372Snjl1) ACPI CA Core Subsystem: 5565126372Snjl 5566193267SjkimImproved error messages when there is a problem finding one or more of the 5567193267Sjkimrequired base ACPI tables 5568126372Snjl 5569126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 5570126372Snjl 5571126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 5572126372Snjl 5573126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 5574126372Snjl 5575126372Snjl2) iASL compiler 5576126372Snjl 5577193267SjkimFixed a problem introduced in December that disabled the correct disassembly 5578193267Sjkimof Resource Templates 5579126372Snjl 5580126372Snjl 5581126372Snjl---------------------------------------- 5582126372Snjl03 December 2003. Summary of changes for version 20031203: 5583126372Snjl 5584126372Snjl1) ACPI CA Core Subsystem: 5585126372Snjl 5586126372SnjlChanged the initialization of Operation Regions during subsystem 5587126372Snjlinit to perform two entire walks of the ACPI namespace; The first 5588126372Snjlto initialize the regions themselves, the second to execute the 5589126372Snjl_REG methods. This fixed some interdependencies across _REG 5590126372Snjlmethods found on some machines. 5591126372Snjl 5592126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 5593126372Snjlthe object reference count, and not create a new copy of the 5594126372Snjlobject if the Local1 is uninitialized. 5595126372Snjl 5596126372SnjlImplemented support for the _SST reserved method during sleep 5597126372Snjltransitions. 5598126372Snjl 5599126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 5600126372Snjlwaking up, this is apparently required by some machines. 5601126372Snjl 5602193267SjkimWhen sleeping, clear the wake status only if SleepState is not S5. 5603126372Snjl 5604126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 5605126372Snjlpointer arithmetic advanced a string pointer too far. 5606126372Snjl 5607126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 5608126372Snjlcould be returned if the requested table has not been loaded. 5609126372Snjl 5610193267SjkimWithin the support for IRQ resources, restructured the handling of 5611126372Snjlthe active and edge/level bits. 5612126372Snjl 5613126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 5614126372Snjlleaked under certain error conditions. 5615126372Snjl 5616126372SnjlImproved error messages for the cases where the ACPI mode could 5617126372Snjlnot be entered. 5618126372Snjl 5619126372SnjlCode and Data Size: Current and previous core subsystem library 5620126372Snjlsizes are shown below. These are the code and data sizes for the 5621126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5622126372Snjlthese values do not include any ACPI driver or OSPM code. The 5623126372Snjldebug version of the code includes the debug output trace 5624126372Snjlmechanism and has a much larger code and data size. Note that 5625193267Sjkimthese values will vary depending on the efficiency of the compiler 5626126372Snjland the compiler options used during generation. 5627126372Snjl 5628126372Snjl Previous Release (20031029): 5629126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 5630126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 5631126372Snjl Current Release: 5632126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 5633126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 5634126372Snjl 5635126372Snjl2) iASL Compiler/Disassembler: 5636126372Snjl 5637126372SnjlImplemented a fix for the iASL disassembler where a bad index was 5638126372Snjlgenerated. This was most noticeable on 64-bit platforms 5639126372Snjl 5640126372Snjl 5641126372Snjl---------------------------------------- 5642126372Snjl29 October 2003. Summary of changes for version 20031029: 5643126372Snjl 5644126372Snjl1) ACPI CA Core Subsystem: 5645126372Snjl 5646167802Sjkim 5647126372SnjlFixed a problem where a level-triggered GPE with an associated 5648126372Snjl_Lxx control method was incorrectly cleared twice. 5649126372Snjl 5650126372SnjlFixed a problem with the Field support code where an access can 5651126372Snjloccur beyond the end-of-region if the field is non-aligned but 5652126372Snjlextends to the very end of the parent region (resulted in an 5653126372SnjlAE_AML_REGION_LIMIT exception.) 5654126372Snjl 5655126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 5656193267Sjkimwould not get invoked on an RTC event. The RTC event bitmasks for 5657126372Snjlthe PM1 registers were not being initialized properly. 5658126372Snjl 5659126372SnjlImplemented support for executing _STA and _INI methods for 5660126372SnjlProcessor objects. Although this is currently not part of the 5661193267SjkimACPI specification, there is existing ASL code that depends on the 5662126372Snjlinit-time execution of these methods. 5663126372Snjl 5664126372SnjlImplemented and deployed a GetDescriptorName function to decode 5665126372Snjlthe various types of internal descriptors. Guards against null 5666126372Snjldescriptors during debug output also. 5667126372Snjl 5668126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 5669193267Sjkimcharacter namespace node name. This function simplifies the debug 5670193267Sjkimand error output, as well as guarding against null pointers during 5671126372Snjloutput. 5672126372Snjl 5673126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 5674126372Snjlsimplify the debug and error output of 64-bit integers. This 5675126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 5676126372Snjlintegers. 5677126372Snjl 5678126372SnjlUpdated the implementation of the Stall() operator to only call 5679126372SnjlAcpiOsStall(), and also return an error if the operand is larger 5680126372Snjlthan 255. This preserves the required behavior of not 5681126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 5682126372Snjlcalled for "long stalls". 5683126372Snjl 5684126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 5685126372Snjlinitialized are now treated as NOOPs. 5686126372Snjl 5687126372SnjlCleaned up a handful of warnings during 64-bit generation. 5688126372Snjl 5689126372SnjlFixed a reported error where and incorrect GPE number was passed 5690126372Snjlto the GPE dispatch handler. This value is only used for error 5691193267Sjkimoutput, however. Used this opportunity to clean up and streamline 5692126372Snjlthe GPE dispatch code. 5693126372Snjl 5694126372SnjlCode and Data Size: Current and previous core subsystem library 5695126372Snjlsizes are shown below. These are the code and data sizes for the 5696126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5697126372Snjlthese values do not include any ACPI driver or OSPM code. The 5698167802Sjkim 5699126372Snjldebug version of the code includes the debug output trace 5700126372Snjlmechanism and has a much larger code and data size. Note that 5701193267Sjkimthese values will vary depending on the efficiency of the compiler 5702126372Snjland the compiler options used during generation. 5703126372Snjl 5704126372Snjl Previous Release (20031002): 5705126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 5706126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 5707126372Snjl Current Release: 5708126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 5709126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 5710126372Snjl 5711126372Snjl 5712126372Snjl2) iASL Compiler/Disassembler: 5713126372Snjl 5714193267SjkimUpdated the iASL compiler to return an error if the operand to the 5715126372SnjlStall() operator is larger than 255. 5716126372Snjl 5717126372Snjl 5718126372Snjl---------------------------------------- 5719126372Snjl02 October 2003. Summary of changes for version 20031002: 5720126372Snjl 5721126372Snjl 5722126372Snjl1) ACPI CA Core Subsystem: 5723126372Snjl 5724126372SnjlFixed a problem with Index Fields where the index was not 5725126372Snjlincremented for fields that require multiple writes to the 5726126372Snjlindex/data registers (Fields that are wider than the data 5727126372Snjlregister.) 5728126372Snjl 5729126372SnjlFixed a problem with all Field objects where a write could go 5730126372Snjlbeyond the end-of-field if the field was larger than the access 5731193267Sjkimgranularity and therefore required multiple writes to complete the 5732126372Snjlrequest. An extra write beyond the end of the field could happen 5733126372Snjlinadvertently. 5734126372Snjl 5735126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 5736126372Snjlwould incorrectly be returned if the width of the Data Register 5737126372Snjlwas larger than the specified field access width. 5738126372Snjl 5739126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 5740126372Snjloperation. Implemented full support for the "DdbHandle" object 5741126372Snjlthroughout the ACPI CA subsystem. 5742126372Snjl 5743126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 5744126372SnjlCA header files. Even though these tables are not directly 5745126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 5746126372Snjldevice drivers. 5747126372Snjl 5748126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 5749126372Snjllist. This included checks for minimum descriptor length, and 5750126372Snjlsupport for trailing NULL strings within descriptors that have 5751126372Snjloptional string elements. 5752126372Snjl 5753126372SnjlCode and Data Size: Current and previous core subsystem library 5754126372Snjlsizes are shown below. These are the code and data sizes for the 5755126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5756126372Snjlthese values do not include any ACPI driver or OSPM code. The 5757126372Snjldebug version of the code includes the debug output trace 5758126372Snjlmechanism and has a much larger code and data size. Note that 5759193267Sjkimthese values will vary depending on the efficiency of the compiler 5760126372Snjland the compiler options used during generation. 5761126372Snjl 5762126372Snjl Previous Release (20030918): 5763126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 5764126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 5765126372Snjl Current Release: 5766126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 5767126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 5768126372Snjl 5769126372Snjl 5770126372Snjl2) iASL Compiler: 5771126372Snjl 5772126372SnjlImplemented detection of non-ASCII characters within the input 5773126372Snjlsource ASL file. This catches attempts to compile binary (AML) 5774126372Snjlfiles early in the compile, with an informative error message. 5775126372Snjl 5776126372SnjlFixed a problem where the disassembler would fault if the output 5777193267Sjkimfilename could not be generated or if the output file could not be 5778126372Snjlopened. 5779126372Snjl 5780126372Snjl---------------------------------------- 5781126372Snjl18 September 2003. Summary of changes for version 20030918: 5782126372Snjl 5783126372Snjl 5784126372Snjl1) ACPI CA Core Subsystem: 5785126372Snjl 5786126372SnjlFound and fixed a longstanding problem with the late execution of 5787126372Snjlthe various deferred AML opcodes (such as Operation Regions, 5788126372SnjlBuffer Fields, Buffers, and Packages). If the name string 5789126372Snjlspecified for the name of the new object placed the object in a 5790126372Snjlscope other than the current scope, the initialization/execution 5791126372Snjlof the opcode failed. The solution to this problem was to 5792126372Snjlimplement a mechanism where the late execution of such opcodes 5793126372Snjldoes not attempt to lookup/create the name a second time in an 5794126372Snjlincorrect scope. This fixes the "region size computed 5795126372Snjlincorrectly" problem. 5796126372Snjl 5797193267SjkimFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a 5798126372SnjlGlobal Lock AE_BAD_PARAMETER error. 5799126372Snjl 5800126372SnjlFixed several 64-bit issues with prototypes, casting and data 5801126372Snjltypes. 5802126372Snjl 5803126372SnjlRemoved duplicate prototype from acdisasm.h 5804126372Snjl 5805126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 5806126372Snjl 5807126372SnjlCode and Data Size: Current and previous core subsystem library 5808126372Snjlsizes are shown below. These are the code and data sizes for the 5809126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5810126372Snjlthese values do not include any ACPI driver or OSPM code. The 5811126372Snjldebug version of the code includes the debug output trace 5812126372Snjlmechanism and has a much larger code and data size. Note that 5813193267Sjkimthese values will vary depending on the efficiency of the compiler 5814126372Snjland the compiler options used during generation. 5815126372Snjl 5816126372Snjl Previous Release: 5817167802Sjkim 5818126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 5819126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 5820126372Snjl Current Release: 5821126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 5822126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 5823126372Snjl 5824126372Snjl 5825126372Snjl2) Linux: 5826126372Snjl 5827126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 5828126372Snjlcorrect sleep time in seconds. 5829126372Snjl 5830126372Snjl---------------------------------------- 5831126372Snjl14 July 2003. Summary of changes for version 20030619: 5832126372Snjl 5833126372Snjl1) ACPI CA Core Subsystem: 5834126372Snjl 5835126372SnjlParse SSDTs in order discovered, as opposed to reverse order 5836126372Snjl(Hrvoje Habjanic) 5837126372Snjl 5838126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 5839126372SnjlKlausner, 5840126372Snjl Nate Lawson) 5841126372Snjl 5842126372Snjl 5843126372Snjl2) Linux: 5844126372Snjl 5845126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 5846126372Snjl 5847126372Snjlproc function return value cleanups (Andi Kleen) 5848126372Snjl 5849126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 5850126372Snjl 5851126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 5852126372Snjl 5853126372Snjl 5854126372Snjl---------------------------------------- 5855117521Snjl19 June 2003. Summary of changes for version 20030619: 5856117521Snjl 5857117521Snjl1) ACPI CA Core Subsystem: 5858117521Snjl 5859193267SjkimFix To/FromBCD, eliminating the need for an arch-specific #define. 5860117521Snjl 5861117521SnjlDo not acquire a semaphore in the S5 shutdown path. 5862117521Snjl 5863117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 5864117521Snjl 5865117521SnjlFix sleep/stall code reversal. (Andi Kleen) 5866117521Snjl 5867117521SnjlRevert a change having to do with control method calling 5868117521Snjlsemantics. 5869117521Snjl 5870117521Snjl2) Linux: 5871117521Snjl 5872117521Snjlacpiphp update (Takayoshi Kochi) 5873117521Snjl 5874117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 5875117521Snjl 5876117521SnjlMention acpismp=force in config help 5877117521Snjl 5878117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 5879167802Sjkim 5880193267Sjkimcompatibility and also cleans up the code to a significant degree. 5881117521Snjl 5882117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 5883117521Snjl 5884117521Snjl---------------------------------------- 5885117521Snjl22 May 2003. Summary of changes for version 20030522: 5886117521Snjl 5887117521Snjl1) ACPI CA Core Subsystem: 5888117521Snjl 5889117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 5890117521Snjloccurred occasionally during _BST evaluation. This turned out to 5891117521Snjlbe an Owner ID allocation issue where a called method did not get 5892193267Sjkima new ID assigned to it. Eventually, (after 64k calls), the Owner 5893193267SjkimID UINT16 would wraparound so that the ID would be the same as the 5894126372Snjlcaller's and the called method would delete the caller's 5895117521Snjlnamespace. 5896117521Snjl 5897117521SnjlImplemented extended error reporting for control methods that are 5898117521Snjlaborted due to a run-time exception. Output includes the exact 5899193267SjkimAML instruction that caused the method abort, a dump of the method 5900126372Snjllocals and arguments at the time of the abort, and a trace of all 5901126372Snjlnested control method calls. 5902117521Snjl 5903117521SnjlModified the interpreter to allow the creation of buffers of zero 5904117521Snjllength from the AML code. Implemented new code to ensure that no 5905117521Snjlattempt is made to actually allocate a memory buffer (of length 5906193267Sjkimzero) - instead, a simple buffer object with a NULL buffer pointer 5907126372Snjland length zero is created. A warning is no longer issued when 5908126372Snjlthe AML attempts to create a zero-length buffer. 5909117521Snjl 5910117521SnjlImplemented a workaround for the "leading asterisk issue" in 5911117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 5912117521Snjlasterisk is automatically removed if present in any HID, UID, or 5913117521SnjlCID strings. The iASL compiler will still flag this asterisk as 5914117521Snjlan error, however. 5915117521Snjl 5916193267SjkimImplemented full support for _CID methods that return a package of 5917193267Sjkimmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface 5918126372Snjlnow additionally returns a device _CID list if present. This 5919126372Snjlrequired a change to the external interface in order to pass an 5920126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 5921117521Snjlvariable length. 5922117521Snjl 5923117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 5924117521Snjlhandler initialization code did not know about this exception. 5925117521Snjl 5926117521SnjlCode and Data Size: Current and previous core subsystem library 5927117521Snjlsizes are shown below. These are the code and data sizes for the 5928117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5929117521Snjlthese values do not include any ACPI driver or OSPM code. The 5930117521Snjldebug version of the code includes the debug output trace 5931117521Snjlmechanism and has a much larger code and data size. Note that 5932193267Sjkimthese values will vary depending on the efficiency of the compiler 5933126372Snjland the compiler options used during generation. 5934117521Snjl 5935117521Snjl Previous Release (20030509): 5936117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 5937117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 5938117521Snjl Current Release: 5939117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 5940117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 5941117521Snjl 5942117521Snjl 5943117521Snjl2) Linux: 5944117521Snjl 5945117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 5946193267Sjkimafter it was already working, thus disabling all ACPI and the IRQs 5947126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 5948117521SnjlJordet) 5949117521Snjl 5950117521SnjlToshiba driver update (John Belmonte) 5951117521Snjl 5952117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 5953117521SnjlMorton) 5954117521Snjl 5955117521Snjl 5956117521Snjl3) iASL Compiler: 5957117521Snjl 5958117521SnjlFixed a reported problem where multiple (nested) ElseIf() 5959117521Snjlstatements were not handled correctly by the compiler, resulting 5960117521Snjlin incorrect warnings and incorrect AML code. This was a problem 5961117521Snjlin both the ASL parser and the code generator. 5962117521Snjl 5963117521Snjl 5964117521Snjl4) Documentation: 5965117521Snjl 5966193267SjkimAdded changes to existing interfaces, new exception codes, and new 5967126372Snjltext concerning reference count object management versus garbage 5968126372Snjlcollection. 5969117521Snjl 5970117521Snjl---------------------------------------- 5971117521Snjl09 May 2003. Summary of changes for version 20030509. 5972117521Snjl 5973117521Snjl 5974117521Snjl1) ACPI CA Core Subsystem: 5975117521Snjl 5976117521SnjlChanged the subsystem initialization sequence to hold off 5977193267Sjkiminstallation of address space handlers until the hardware has been 5978193267Sjkiminitialized and the system has entered ACPI mode. This is because 5979126372Snjlthe installation of space handlers can cause _REG methods to be 5980193267Sjkimrun. Previously, the _REG methods could potentially be run before 5981126372SnjlACPI mode was enabled. 5982117521Snjl 5983193267SjkimFixed some memory leak issues related to address space handler and 5984126372Snjlnotify handler installation. There were some problems with the 5985126372Snjlreference count mechanism caused by the fact that the handler 5986117521Snjlobjects are shared across several namespace objects. 5987117521Snjl 5988117521SnjlFixed a reported problem where reference counts within the 5989117521Snjlnamespace were not properly updated when named objects created by 5990117521Snjlmethod execution were deleted. 5991117521Snjl 5992117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 5993117521Snjlissue during subsystem termination. Restructured the table data 5994117521Snjlstructures to simplify the linked lists and the related code. 5995117521Snjl 5996117521SnjlFixed a problem where the table ID associated with secondary 5997193267Sjkimtables (SSDTs) was not being propagated into the namespace objects 5998126372Snjlcreated by those tables. This would only present a problem for 5999126372Snjltables that are unloaded at run-time, however. 6000117521Snjl 6001117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 6002117521Snjltype as the length parameter (instead of UINT32). 6003117521Snjl 6004117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 6005117521Snjlappears on various systems. This problem could happen when there 6006117521Snjlare multiple PCI_Config operation regions under a single PCI root 6007117521Snjlbus. This doesn't happen very frequently, but there are some 6008117521Snjlsystems that do this in the ASL. 6009117521Snjl 6010117521SnjlFixed a reported problem where the internal DeleteNode function 6011117521Snjlwas incorrectly handling the case where a namespace node was the 6012117521Snjlfirst in the parent's child list, and had additional peers (not 6013117521Snjlthe only child, but first in the list of children.) 6014117521Snjl 6015193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6016126372Snjlbelow. These are the code and data sizes for the acpica.lib 6017126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6018126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6019126372Snjlversion of the code includes the debug output trace mechanism and 6020193267Sjkimhas a much larger code and data size. Note that these values will 6021126372Snjlvary depending on the efficiency of the compiler and the compiler 6022126372Snjloptions used during generation. 6023117521Snjl 6024117521Snjl Previous Release 6025117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6026117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6027117521Snjl Current Release: 6028117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6029117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6030117521Snjl 6031117521Snjl 6032117521Snjl2) Linux: 6033117521Snjl 6034117521SnjlAllow ":" in OS override string (Ducrot Bruno) 6035117521Snjl 6036117521SnjlKobject fix (Greg KH) 6037117521Snjl 6038117521Snjl 6039117521Snjl3 iASL Compiler/Disassembler: 6040117521Snjl 6041117521SnjlFixed a problem in the generation of the C source code files (AML 6042117521Snjlis emitted in C source statements for BIOS inclusion) where the 6043193267SjkimAscii dump that appears within a C comment at the end of each line 6044126372Snjlcould cause a compile time error if the AML sequence happens to 6045126372Snjlhave an open comment or close comment sequence embedded. 6046117521Snjl 6047117521Snjl 6048117521Snjl---------------------------------------- 6049117521Snjl24 April 2003. Summary of changes for version 20030424. 6050117521Snjl 6051117521Snjl 6052117521Snjl1) ACPI CA Core Subsystem: 6053117521Snjl 6054117521SnjlSupport for big-endian systems has been implemented. Most of the 6055193267Sjkimsupport has been invisibly added behind big-endian versions of the 6056126372SnjlACPI_MOVE_* macros. 6057117521Snjl 6058117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 6059117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 6060117521Snjllow level hardware write routine. The offset parameter was 6061193267Sjkimactually eliminated from the low level read/write routines because 6062126372Snjlthey had become obsolete. 6063117521Snjl 6064117521SnjlFixed a problem where a handler object was deleted twice during 6065117521Snjlthe removal of a fixed event handler. 6066117521Snjl 6067117521Snjl 6068117521Snjl2) Linux: 6069117521Snjl 6070117521SnjlA fix for SMP systems with link devices was contributed by 6071167802Sjkim 6072117521SnjlCompaq's Dan Zink. 6073117521Snjl 6074117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 6075193267Sjkim(Linux ISRs no longer return void, so we can propagate the handler 6076126372Snjlreturn value from the ACPI CA core back to the OS.) 6077117521Snjl 6078117521Snjl 6079167802Sjkim 6080117521Snjl3) Documentation: 6081117521Snjl 6082117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 6083117521Snjlinterfaces and changes to existing interfaces. 6084117521Snjl 6085117521Snjl---------------------------------------- 6086117521Snjl28 March 2003. Summary of changes for version 20030328. 6087117521Snjl 6088117521Snjl1) ACPI CA Core Subsystem: 6089117521Snjl 6090117521SnjlThe GPE Block Device support has been completed. New interfaces 6091117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 6092117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 6093117521Snjlinto separate interfaces for Fixed Events and General Purpose 6094117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 6095117521Snjl 6096117521SnjlFixed a problem where the error message "Failed to acquire 6097117521Snjlsemaphore" would appear during operations on the embedded 6098117521Snjlcontroller (EC). 6099117521Snjl 6100193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6101126372Snjlbelow. These are the code and data sizes for the acpica.lib 6102126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6103126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6104126372Snjlversion of the code includes the debug output trace mechanism and 6105193267Sjkimhas a much larger code and data size. Note that these values will 6106126372Snjlvary depending on the efficiency of the compiler and the compiler 6107126372Snjloptions used during generation. 6108117521Snjl 6109117521Snjl Previous Release 6110117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6111117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6112117521Snjl Current Release: 6113117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6114117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6115117521Snjl 6116117521Snjl 6117117521Snjl---------------------------------------- 6118114237Snjl28 February 2003. Summary of changes for version 20030228. 6119114237Snjl 6120114237Snjl 6121114237Snjl1) ACPI CA Core Subsystem: 6122114237Snjl 6123114237SnjlThe GPE handling and dispatch code has been completely overhauled 6124114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 6125114237SnjlThis affects internal data structures and code only; there should 6126114237Snjlbe no differences visible externally. One new file has been 6127114237Snjladded, evgpeblk.c 6128114237Snjl 6129114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 6130114237Snjlfields that are used to determine the GPE block lengths. The 6131114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 6132193267Sjkimstructures are ignored. This is per the ACPI specification but it 6133126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 6134193267Sjkim(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128). 6135114237Snjl 6136114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 6137114237Snjlregister to look at the SCI_EN bit. On some machines, this read 6138114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 6139114237Snjlin fact be the cause of slow battery status response on some 6140114237Snjlsystems.) 6141114237Snjl 6142193267SjkimFixed a problem where a store of a NULL string to a package object 6143126372Snjlcould cause the premature deletion of the object. This was seen 6144126372Snjlduring execution of the battery _BIF method on some systems, 6145126372Snjlresulting in no battery data being returned. 6146114237Snjl 6147114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 6148114237Snjllists. 6149114237Snjl 6150193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6151126372Snjlbelow. These are the code and data sizes for the acpica.lib 6152126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6153126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6154126372Snjlversion of the code includes the debug output trace mechanism and 6155193267Sjkimhas a much larger code and data size. Note that these values will 6156126372Snjlvary depending on the efficiency of the compiler and the compiler 6157126372Snjloptions used during generation. 6158114237Snjl 6159114237Snjl Previous Release 6160114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6161114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6162114237Snjl Current Release: 6163114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6164114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6165114237Snjl 6166114237Snjl 6167114237Snjl2) Linux 6168114237Snjl 6169114237SnjlS3 fixes (Ole Rohne) 6170114237Snjl 6171114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 6172114237Snjl(Bjorn Helgaas) 6173114237Snjl 6174114237SnjlAdd S4BIOS support (Pavel Machek) 6175114237Snjl 6176114237SnjlMap in entire table before performing checksum (John Stultz) 6177114237Snjl 6178193267SjkimExpand the mem= cmdline to allow the specification of reserved and 6179126372SnjlACPI DATA blocks (Pavel Machek) 6180114237Snjl 6181114237SnjlNever use ACPI on VISWS 6182114237Snjl 6183114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 6184114237Snjl 6185114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 6186114237Snjlcausing us to think that some systems support C2 when they really 6187114237Snjldon't. 6188114237Snjl 6189114237SnjlDo not count processor objects for non-present CPUs (Thanks to 6190114237SnjlDominik Brodowski) 6191114237Snjl 6192114237Snjl 6193114237Snjl3) iASL Compiler: 6194114237Snjl 6195114237SnjlFixed a problem where ASL include files could not be found and 6196114237Snjlopened. 6197114237Snjl 6198114237SnjlAdded support for the _PDC reserved name. 6199114237Snjl 6200114237Snjl 6201117521Snjl---------------------------------------- 6202114237Snjl22 January 2003. Summary of changes for version 20030122. 6203114237Snjl 6204114237Snjl 6205114237Snjl1) ACPI CA Core Subsystem: 6206114237Snjl 6207114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 6208114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 6209193267Sjkimprogrammers believe that this is a NOOP. Since this store doesn't 6210126372Snjldo anything anyway, the new prototype behavior will ignore this 6211126372Snjlerror. This is a case where we can relax the strict checking in 6212126372Snjlthe interpreter in the name of compatibility. 6213114237Snjl 6214114237Snjl 6215114237Snjl2) Linux 6216114237Snjl 6217114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 6218114237SnjlLinux package for the first time. This is the utility that is 6219193267Sjkimused to convert the ACPI CA base source code to the Linux version. 6220114237Snjl 6221114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 6222114237Snjl 6223114237Snjl(Both) Move more headers to include/acpi, and delete an unused 6224114237Snjlheader. 6225114237Snjl 6226114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 6227114237Snjl 6228114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 6229114237Snjl 6230114237Snjl(Both) Remove include of unused header (Adrian Bunk) 6231114237Snjl 6232114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 6233114237Snjlthe 6234193267Sjkimformer now also includes the latter, acpiphp.h only needs the one, 6235126372Snjlnow. 6236114237Snjl 6237193267Sjkim(2.5) Make it possible to select method of bios restoring after S3 6238114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 6239114237Snjl 6240114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 6241114237Snjl 6242114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 6243114237Snjl 6244114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 6245114237Snjl(Dominik Brodowski) 6246114237Snjl 6247114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 6248114237Snjl 6249114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 6250114237SnjlVisinoni) 6251114237Snjl 6252114237Snjl 6253114237Snjl3) iASL Compiler: 6254114237Snjl 6255114237SnjlAdded support to disassemble SSDT and PSDTs. 6256114237Snjl 6257114237SnjlImplemented support to obtain SSDTs from the Windows registry if 6258114237Snjlavailable. 6259114237Snjl 6260114237Snjl 6261102550Siwasaki---------------------------------------- 6262114237Snjl09 January 2003. Summary of changes for version 20030109. 6263114237Snjl 6264114237Snjl1) ACPI CA Core Subsystem: 6265114237Snjl 6266114237SnjlChanged the behavior of the internal Buffer-to-String conversion 6267193267Sjkimfunction. The current ACPI specification states that the contents 6268126372Snjlof the buffer are "converted to a string of two-character 6269126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 6270193267Sjkimthis definition is not backwards compatible with existing ACPI 1.0 6271193267Sjkimimplementations (although the behavior was not defined in the ACPI 6272126372Snjl1.0 specification). The new behavior simply copies data from the 6273193267Sjkimbuffer to the string until a null character is found or the end of 6274126372Snjlthe buffer is reached. The new String object is always null 6275126372Snjlterminated. This problem was seen during the generation of _BIF 6276126372Snjlbattery data where incorrect strings were returned for battery 6277126372Snjltype, etc. This will also require an errata to the ACPI 6278126372Snjlspecification. 6279114237Snjl 6280114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 6281114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 6282114237Snjl 6283114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 6284114237Snjlupdated to 2003. 6285114237Snjl 6286193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6287126372Snjlbelow. These are the code and data sizes for the acpica.lib 6288126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6289126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6290126372Snjlversion of the code includes the debug output trace mechanism and 6291193267Sjkimhas a much larger code and data size. Note that these values will 6292126372Snjlvary depending on the efficiency of the compiler and the compiler 6293126372Snjloptions used during generation. 6294114237Snjl 6295114237Snjl Previous Release 6296114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6297114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6298114237Snjl Current Release: 6299114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6300114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6301114237Snjl 6302114237Snjl 6303114237Snjl2) Linux 6304114237Snjl 6305114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 6306114237Snjl 6307114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 6308114237Snjl 6309114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 6310114237Snjl 6311114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 6312114237Snjl 6313114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 6314114237Snjlof schedule_work() 6315114237Snjl 6316114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 6317114237Snjl 6318114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 6319114237Snjl 6320114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 6321114237Snjl 6322114237SnjlSeveral changes have been made to the source code translation 6323114237Snjlutility that generates the Linux Code in order to make the code 6324114237Snjlmore "Linux-like": 6325114237Snjl 6326114237SnjlAll typedefs on structs and unions have been removed in keeping 6327114237Snjlwith the Linux coding style. 6328114237Snjl 6329114237SnjlRemoved the non-Linux SourceSafe module revision number from each 6330114237Snjlmodule header. 6331114237Snjl 6332114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 6333114237SnjlDoubled the number of symbols that are lowercased. 6334114237Snjl 6335114237SnjlFixed a problem where identifiers within procedure headers and 6336114237Snjlwithin quotes were not fully lower cased (they were left with a 6337114237Snjlstarting capital.) 6338114237Snjl 6339114237SnjlSome C macros whose only purpose is to allow the generation of 16- 6340114237Snjlbit code are now completely removed in the Linux code, increasing 6341114237Snjlreadability and maintainability. 6342114237Snjl 6343114237Snjl---------------------------------------- 6344114237Snjl 6345114237Snjl12 December 2002. Summary of changes for version 20021212. 6346114237Snjl 6347114237Snjl 6348114237Snjl1) ACPI CA Core Subsystem: 6349114237Snjl 6350114237SnjlFixed a problem where the creation of a zero-length AML Buffer 6351114237Snjlwould cause a fault. 6352114237Snjl 6353193267SjkimFixed a problem where a Buffer object that pointed to a static AML 6354126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 6355126372Snjlmemory corruption. 6356114237Snjl 6357114237SnjlFixed a problem where a user buffer (passed in to the external 6358114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 6359114237Snjlsmall to complete the operation, causing memory corruption. 6360114237Snjl 6361114237SnjlFixed a problem in the Buffer-to-String conversion code where a 6362114237Snjlstring of length one was always returned, regardless of the size 6363114237Snjlof the input Buffer object. 6364114237Snjl 6365114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 6366114237Snjllack of need and lack of consistent use. 6367114237Snjl 6368193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6369126372Snjlbelow. These are the code and data sizes for the acpica.lib 6370126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6371126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6372126372Snjlversion of the code includes the debug output trace mechanism and 6373193267Sjkimhas a much larger code and data size. Note that these values will 6374126372Snjlvary depending on the efficiency of the compiler and the compiler 6375126372Snjloptions used during generation. 6376114237Snjl 6377114237Snjl Previous Release 6378114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6379114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6380114237Snjl Current Release: 6381114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6382114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6383114237Snjl 6384114237Snjl 6385114237Snjl---------------------------------------- 6386114237Snjl05 December 2002. Summary of changes for version 20021205. 6387114237Snjl 6388114237Snjl1) ACPI CA Core Subsystem: 6389114237Snjl 6390114237SnjlFixed a problem where a store to a String or Buffer object could 6391114237Snjlcause corruption of the DSDT if the object type being stored was 6392114237Snjlthe same as the target object type and the length of the object 6393114237Snjlbeing stored was equal to or smaller than the original (existing) 6394114237Snjltarget object. This was seen to cause corruption of battery _BIF 6395114237Snjlbuffers if the _BIF method modified the buffer on the fly. 6396114237Snjl 6397193267SjkimFixed a problem where an internal error was generated if a control 6398126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 6399126372SnjlPackage declaration. This was caused by the deferred parsing of 6400126372Snjlthe control method and thus the deferred creation of the internal 6401126372Snjlmethod object. The solution to this problem was to create the 6402126372Snjlinternal method object at the moment the method is encountered in 6403126372Snjlthe first pass - so that subsequent references to the method will 6404126372Snjlable to obtain the required parameter count and thus properly 6405126372Snjlparse the method invocation. This problem presented itself as an 6406126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 6407114237Snjl 6408114237SnjlFixed a problem where the internal String object copy routine did 6409193267Sjkimnot always allocate sufficient memory for the target String object 6410126372Snjland caused memory corruption. This problem was seen to cause 6411126372Snjl"Allocation already present in list!" errors as memory allocation 6412126372Snjlbecame corrupted. 6413114237Snjl 6414193267SjkimImplemented a new function for the evaluation of namespace objects 6415126372Snjlthat allows the specification of the allowable return object 6416126372Snjltypes. This simplifies a lot of code that checks for a return 6417126372Snjlobject of one or more specific objects returned from the 6418114237Snjlevaluation (such as _STA, etc.) This may become and external 6419114237Snjlfunction if it would be useful to ACPI-related drivers. 6420114237Snjl 6421114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 6422114237Snjlclarity. 6423114237Snjl 6424114237SnjlCompleted additional code restructuring to allow more modular 6425114237Snjllinking for iASL compiler and AcpiExec. Several files were split 6426114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 6427114237Snjl 6428114237SnjlImplemented an abort mechanism to terminate an executing control 6429193267Sjkimmethod via the AML debugger. This feature is useful for debugging 6430126372Snjlcontrol methods that depend (wait) for specific hardware 6431126372Snjlresponses. 6432114237Snjl 6433193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6434126372Snjlbelow. These are the code and data sizes for the acpica.lib 6435126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6436126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6437126372Snjlversion of the code includes the debug output trace mechanism and 6438193267Sjkimhas a much larger code and data size. Note that these values will 6439126372Snjlvary depending on the efficiency of the compiler and the compiler 6440126372Snjloptions used during generation. 6441114237Snjl 6442114237Snjl Previous Release 6443114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6444114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 6445114237Snjl Current Release: 6446114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6447114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6448114237Snjl 6449114237Snjl 6450114237Snjl2) iASL Compiler/Disassembler 6451114237Snjl 6452114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 6453114237SnjlDescriptors. If specified in the ASL, the optional "Resource 6454114237SnjlSource Index" and "Resource Source" fields were not inserted into 6455114237Snjlthe correct location within the AML resource descriptor, creating 6456114237Snjlan invalid descriptor. 6457114237Snjl 6458193267SjkimFixed a disassembler problem for "Interrupt" resource descriptors. 6459126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 6460126372Snjlwere ignored. 6461114237Snjl 6462114237Snjl 6463114237Snjl---------------------------------------- 6464114237Snjl22 November 2002. Summary of changes for version 20021122. 6465114237Snjl 6466114237Snjl 6467114237Snjl1) ACPI CA Core Subsystem: 6468114237Snjl 6469114237SnjlFixed a reported problem where an object stored to a Method Local 6470114237Snjlor Arg was not copied to a new object during the store - the 6471114237Snjlobject pointer was simply copied to the Local/Arg. This caused 6472114237Snjlall subsequent operations on the Local/Arg to also affect the 6473114237Snjloriginal source of the store operation. 6474114237Snjl 6475114237SnjlFixed a problem where a store operation to a Method Local or Arg 6476114237Snjlwas not completed properly if the Local/Arg contained a reference 6477114237Snjl(from RefOf) to a named field. The general-purpose store-to- 6478114237Snjlnamespace-node code is now used so that this case is handled 6479114237Snjlautomatically. 6480114237Snjl 6481193267SjkimFixed a problem where the internal object copy routine would cause 6482126372Snjla protection fault if the object being copied was a Package and 6483126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 6484114237Snjlpackage. 6485114237Snjl 6486114237SnjlFixed a problem with the GPE initialization that resulted from an 6487114237Snjlambiguity in the ACPI specification. One section of the 6488114237Snjlspecification states that both the address and length of the GPE 6489193267Sjkimblock must be zero if the block is not supported. Another section 6490126372Snjlimplies that only the address need be zero if the block is not 6491193267Sjkimsupported. The code has been changed so that both the address and 6492126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 6493126372Snjlif either the address or the length is zero, the GPE block is 6494126372Snjlinvalid.) 6495114237Snjl 6496193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6497126372Snjlbelow. These are the code and data sizes for the acpica.lib 6498126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6499126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6500126372Snjlversion of the code includes the debug output trace mechanism and 6501193267Sjkimhas a much larger code and data size. Note that these values will 6502126372Snjlvary depending on the efficiency of the compiler and the compiler 6503126372Snjloptions used during generation. 6504114237Snjl 6505114237Snjl Previous Release 6506114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 6507114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 6508114237Snjl Current Release: 6509114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6510114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 6511114237Snjl 6512114237Snjl 6513114237Snjl2) Linux 6514114237Snjl 6515114237SnjlCleaned up EC driver. Exported an external EC read/write 6516114237Snjlinterface. By going through this, other drivers (most notably 6517114237Snjlsonypi) will be able to serialize access to the EC. 6518114237Snjl 6519114237Snjl 6520114237Snjl3) iASL Compiler/Disassembler 6521114237Snjl 6522114237SnjlImplemented support to optionally generate include files for both 6523114237SnjlASM and C (the -i switch). This simplifies BIOS development by 6524114237Snjlautomatically creating include files that contain external 6525114237Snjldeclarations for the symbols that are created within the 6526167802Sjkim 6527114237Snjl(optionally generated) ASM and C AML source files. 6528114237Snjl 6529114237Snjl 6530114237Snjl---------------------------------------- 6531107325Siwasaki15 November 2002. Summary of changes for version 20021115. 6532104470Siwasaki 6533107325Siwasaki1) ACPI CA Core Subsystem: 6534107325Siwasaki 6535114237SnjlFixed a memory leak problem where an error during resolution of 6536167802Sjkim 6537114237Snjlmethod arguments during a method invocation from another method 6538114237Snjlfailed to cleanup properly by deleting all successfully resolved 6539114237Snjlargument objects. 6540107325Siwasaki 6541114237SnjlFixed a problem where the target of the Index() operator was not 6542114237Snjlcorrectly constructed if the source object was a package. This 6543114237Snjlproblem has not been detected because the use of a target operand 6544114237Snjlwith Index() is very rare. 6545107325Siwasaki 6546107325SiwasakiFixed a problem with the Index() operator where an attempt was 6547107325Siwasakimade to delete the operand objects twice. 6548107325Siwasaki 6549107325SiwasakiFixed a problem where an attempt was made to delete an operand 6550114237Snjltwice during execution of the CondRefOf() operator if the target 6551114237Snjldid not exist. 6552107325Siwasaki 6553114237SnjlImplemented the first of perhaps several internal create object 6554193267Sjkimfunctions that create and initialize a specific object type. This 6555126372Snjlconsolidates duplicated code wherever the object is created, thus 6556126372Snjlshrinking the size of the subsystem. 6557107325Siwasaki 6558114237SnjlImplemented improved debug/error messages for errors that occur 6559114237Snjlduring nested method invocations. All executing method pathnames 6560193267Sjkimare displayed (with the error) as the call stack is unwound - thus 6561126372Snjlsimplifying debug. 6562107325Siwasaki 6563107325SiwasakiFixed a problem introduced in the 10/02 release that caused 6564114237Snjlpremature deletion of a buffer object if a buffer was used as an 6565114237SnjlASL operand where an integer operand is required (Thus causing an 6566193267Sjkimimplicit object conversion from Buffer to Integer.) The change in 6567126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 6568114237Snjlincorrectly.) 6569107325Siwasaki 6570193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6571126372Snjlbelow. These are the code and data sizes for the acpica.lib 6572126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6573126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6574126372Snjlversion of the code includes the debug output trace mechanism and 6575193267Sjkimhas a much larger code and data size. Note that these values will 6576126372Snjlvary depending on the efficiency of the compiler and the compiler 6577126372Snjloptions used during generation. 6578107325Siwasaki 6579107325Siwasaki Previous Release 6580107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 6581107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 6582107325Siwasaki Current Release: 6583107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 6584107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 6585107325Siwasaki 6586107325Siwasaki 6587107325Siwasaki2) Linux 6588107325Siwasaki 6589114237SnjlChanged the implementation of the ACPI semaphores to use down() 6590114237Snjlinstead of down_interruptable(). It is important that the 6591114237Snjlexecution of ACPI control methods not be interrupted by signals. 6592114237SnjlMethods must run to completion, or the system may be left in an 6593114237Snjlunknown/unstable state. 6594107325Siwasaki 6595193267SjkimFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set. 6596126372Snjl(Shawn Starr) 6597107325Siwasaki 6598107325Siwasaki 6599107325Siwasaki3) iASL Compiler/Disassembler 6600107325Siwasaki 6601107325Siwasaki 6602114237SnjlChanged the default location of output files. All output files 6603114237Snjlare now placed in the current directory by default instead of in 6604114237Snjlthe directory of the source file. This change may affect some 6605114237Snjlexisting makefiles, but it brings the behavior of the compiler in 6606114237Snjlline with other similar tools. The location of the output files 6607114237Snjlcan be overridden with the -p command line switch. 6608107325Siwasaki 6609114237Snjl 6610107325Siwasaki---------------------------------------- 6611107325Siwasaki11 November 2002. Summary of changes for version 20021111. 6612107325Siwasaki 6613107325Siwasaki 6614114237Snjl0) ACPI Specification 2.0B is released and is now available at: 6615114237Snjlhttp://www.acpi.info/index.html 6616107325Siwasaki 6617107325Siwasaki 6618107325Siwasaki1) ACPI CA Core Subsystem: 6619107325Siwasaki 6620107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 6621114237SnjlThis includes the early detection and handoff of the request to 6622114237Snjlthe SMBus region handler (avoiding all of the complex field 6623107325Siwasakisupport code), and support for the bidirectional return packet 6624107325Siwasakifrom an SMBus write operation. This paves the way for the 6625107325Siwasakidevelopment of SMBus drivers in each host operating system. 6626107325Siwasaki 6627107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 6628107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 6629107325Siwasakispecification. This had the side effect of causing ASL 6630107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 6631107325Siwasakiforever. Changed all internal references to the ACPI timeout 6632193267Sjkimparameter to 16 bits to prevent future problems. Changed the name 6633126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 6634107325Siwasaki 6635193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6636126372Snjlbelow. These are the code and data sizes for the acpica.lib 6637126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6638126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6639126372Snjlversion of the code includes the debug output trace mechanism and 6640193267Sjkimhas a much larger code and data size. Note that these values will 6641126372Snjlvary depending on the efficiency of the compiler and the compiler 6642126372Snjloptions used during generation. 6643107325Siwasaki 6644107325Siwasaki Previous Release 6645107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6646107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 6647107325Siwasaki Current Release: 6648107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 6649107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 6650107325Siwasaki 6651107325Siwasaki 6652107325Siwasaki2) Linux 6653107325Siwasaki 6654107325SiwasakiModule loading/unloading fixes (John Cagle) 6655107325Siwasaki 6656107325Siwasaki 6657107325Siwasaki3) iASL Compiler/Disassembler 6658107325Siwasaki 6659107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 6660107325Siwasaki 6661107325SiwasakiImplemented support for the disassembly of all SMBus protocol 6662107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 6663107325Siwasaki 6664107325Siwasaki---------------------------------------- 6665107325Siwasaki01 November 2002. Summary of changes for version 20021101. 6666107325Siwasaki 6667107325Siwasaki 6668107325Siwasaki1) ACPI CA Core Subsystem: 6669107325Siwasaki 6670193267SjkimFixed a problem where platforms that have a GPE1 block but no GPE0 6671126372Snjlblock were not handled correctly. This resulted in a "GPE 6672114237Snjloverlap" error message. GPE0 is no longer required. 6673107325Siwasaki 6674107325SiwasakiRemoved code added in the previous release that inserted nodes 6675114237Snjlinto the namespace in alphabetical order. This caused some side- 6676114237Snjleffects on various machines. The root cause of the problem is 6677114237Snjlstill under investigation since in theory, the internal ordering 6678114237Snjlof the namespace nodes should not matter. 6679107325Siwasaki 6680107325Siwasaki 6681114237SnjlEnhanced error reporting for the case where a named object is not 6682114237Snjlfound during control method execution. The full ACPI namepath 6683114237Snjl(name reference) of the object that was not found is displayed in 6684114237Snjlthis case. 6685107325Siwasaki 6686193267SjkimNote: as a result of the overhaul of the namespace object types in 6687126372Snjlthe previous release, the namespace nodes for the predefined 6688114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 6689114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 6690114237Snjlmanagement code but may affect code that walks the namespace tree 6691114237Snjllooking for specific object types. 6692114237Snjl 6693193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6694126372Snjlbelow. These are the code and data sizes for the acpica.lib 6695126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6696126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6697126372Snjlversion of the code includes the debug output trace mechanism and 6698193267Sjkimhas a much larger code and data size. Note that these values will 6699126372Snjlvary depending on the efficiency of the compiler and the compiler 6700126372Snjloptions used during generation. 6701107325Siwasaki 6702107325Siwasaki Previous Release 6703107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 6704107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 6705107325Siwasaki Current Release: 6706107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6707107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 6708107325Siwasaki 6709107325Siwasaki 6710107325Siwasaki2) Linux 6711107325Siwasaki 6712107325SiwasakiFixed a problem introduced in the previous release where the 6713193267SjkimProcessor and Thermal objects were not recognized and installed in 6714193267Sjkim/proc. This was related to the scope type change described above. 6715107325Siwasaki 6716107325Siwasaki 6717107325Siwasaki3) iASL Compiler/Disassembler 6718107325Siwasaki 6719114237SnjlImplemented the -g option to get all of the required ACPI tables 6720114237Snjlfrom the registry and save them to files (Windows version of the 6721193267Sjkimcompiler only.) The required tables are the FADT, FACS, and DSDT. 6722107325Siwasaki 6723114237SnjlAdded ACPI table checksum validation during table disassembly in 6724114237Snjlorder to catch corrupted tables. 6725107325Siwasaki 6726107325Siwasaki 6727107325Siwasaki---------------------------------------- 6728107325Siwasaki22 October 2002. Summary of changes for version 20021022. 6729107325Siwasaki 6730107325Siwasaki1) ACPI CA Core Subsystem: 6731107325Siwasaki 6732114237SnjlImplemented a restriction on the Scope operator that the target 6733114237Snjlmust already exist in the namespace at the time the operator is 6734114237Snjlencountered (during table load or method execution). In other 6735114237Snjlwords, forward references are not allowed and Scope() cannot 6736114237Snjlcreate a new object. This changes the previous behavior where the 6737193267Sjkiminterpreter would create the name if not found. This new behavior 6738126372Snjlcorrectly enables the search-to-root algorithm during namespace 6739126372Snjllookup of the target name. Because of this upsearch, this fixes 6740126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 6741126372Snjlinterpreter and iASL compiler compatible with other ACPI 6742114237Snjlimplementations. 6743107325Siwasaki 6744114237SnjlCompleted a major overhaul of the internal ACPI object types for 6745114237Snjlthe ACPI Namespace and the associated operand objects. Many of 6746114237Snjlthese types had become obsolete with the introduction of the two- 6747114237Snjlpass namespace load. This cleanup simplifies the code and makes 6748114237Snjlthe entire namespace load mechanism much clearer and easier to 6749114237Snjlunderstand. 6750107325Siwasaki 6751114237SnjlImproved debug output for tracking scope opening/closing to help 6752114237Snjldiagnose scoping issues. The old scope name as well as the new 6753114237Snjlscope name are displayed. Also improved error messages for 6754114237Snjlproblems with ASL Mutex objects and error messages for GPE 6755114237Snjlproblems. 6756107325Siwasaki 6757107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 6758107325Siwasaki 6759114237SnjlAll string output (for all namespace/object dumps) now uses the 6760193267Sjkimcommon ACPI string output procedure which handles escapes properly 6761126372Snjland does not emit non-printable characters. 6762107325Siwasaki 6763107325SiwasakiFixed some issues with constants in the 64-bit version of the 6764107325Siwasakilocal C library (utclib.c) 6765107325Siwasaki 6766107325Siwasaki 6767107325Siwasaki2) Linux 6768107325Siwasaki 6769107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 6770107325Siwasakiinterrupt level. 6771107325Siwasaki 6772107325Siwasaki 6773107325Siwasaki3) iASL Compiler/Disassembler 6774107325Siwasaki 6775193267SjkimImplemented ACPI 2.0B grammar change that disallows all Type 1 and 6776126372Snjl2 opcodes outside of a control method. This means that the 6777114237Snjl"executable" operators (versus the "namespace" operators) cannot 6778193267Sjkimbe used at the table level; they can only be used within a control 6779126372Snjlmethod. 6780107325Siwasaki 6781107325SiwasakiImplemented the restriction on the Scope() operator where the 6782107325Siwasakitarget must already exist in the namespace at the time the 6783114237Snjloperator is encountered (during ASL compilation). In other words, 6784193267Sjkimforward references are not allowed and Scope() cannot create a new 6785126372Snjlobject. This makes the iASL compiler compatible with other ACPI 6786193267Sjkimimplementations and makes the Scope() implementation adhere to the 6787126372SnjlACPI specification. 6788107325Siwasaki 6789193267SjkimFixed a problem where namepath optimization for the Alias operator 6790193267Sjkimwas optimizing the wrong path (of the two namepaths.) This caused 6791126372Snjla "Missing alias link" error message. 6792107325Siwasaki 6793114237SnjlFixed a problem where an "unknown reserved name" warning could be 6794114237Snjlincorrectly generated for names like "_SB" when the trailing 6795114237Snjlunderscore is not used in the original ASL. 6796107325Siwasaki 6797107325SiwasakiFixed a problem where the reserved name check did not handle 6798114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 6799114237Snjlthe NamePath was examined instead of the last NameSeg. 6800107325Siwasaki 6801107325Siwasaki 6802107325Siwasaki---------------------------------------- 6803107325Siwasaki 6804104470Siwasaki02 October 2002. Summary of changes for this release. 6805104470Siwasaki 6806104470Siwasaki 6807104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 6808104470Siwasaki 6809104470SiwasakiFixed a problem where a store/copy of a string to an existing 6810193267Sjkimstring did not always set the string length properly in the String 6811126372Snjlobject. 6812104470Siwasaki 6813104470SiwasakiFixed a reported problem with the ToString operator where the 6814193267Sjkimbehavior was identical to the ToHexString operator instead of just 6815126372Snjlsimply converting a raw buffer to a string data type. 6816104470Siwasaki 6817104470SiwasakiFixed a problem where CopyObject and the other "explicit" 6818193267Sjkimconversion operators were not updating the internal namespace node 6819126372Snjltype as part of the store operation. 6820104470Siwasaki 6821104470SiwasakiFixed a memory leak during implicit source operand conversion 6822193267Sjkimwhere the original object was not deleted if it was converted to a 6823126372Snjlnew object of a different type. 6824104470Siwasaki 6825193267SjkimEnhanced error messages for all problems associated with namespace 6826193267Sjkimlookups. Common procedure generates and prints the lookup name as 6827126372Snjlwell as the formatted status. 6828104470Siwasaki 6829104470SiwasakiCompleted implementation of a new design for the Alias support 6830193267Sjkimwithin the namespace. The existing design did not handle the case 6831193267Sjkimwhere a new object was assigned to one of the two names due to the 6832193267Sjkimuse of an explicit conversion operator, resulting in the two names 6833126372Snjlpointing to two different objects. The new design simply points 6834126372Snjlthe Alias name to the original name node - not to the object. 6835193267SjkimThis results in a level of indirection that must be handled in the 6836126372Snjlname resolution mechanism. 6837104470Siwasaki 6838193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6839126372Snjlbelow. These are the code and data sizes for the acpica.lib 6840126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6841126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6842126372Snjlversion of the code includes the debug output trace mechanism and 6843193267Sjkimhas a larger code and data size. Note that these values will vary 6844126372Snjldepending on the efficiency of the compiler and the compiler 6845126372Snjloptions used during generation. 6846104470Siwasaki 6847104470Siwasaki Previous Release 6848104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 6849104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 6850104470Siwasaki Current Release: 6851104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 6852104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 6853104470Siwasaki 6854104470Siwasaki 6855104470Siwasaki2) Linux 6856104470Siwasaki 6857104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 6858104470SiwasakiNeumann) 6859104470Siwasaki 6860104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 6861104470Siwasaki 6862114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 6863104470Siwasaki 6864104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 6865104470Siwasaki 6866104470SiwasakiIA64 fixes. (David Mosberger) 6867104470Siwasaki 6868104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 6869104470Siwasaki 6870104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 6871104470SiwasakiBrodowski) 6872104470Siwasaki 6873104470Siwasaki 6874104470Siwasaki3) iASL Compiler/Disassembler 6875104470Siwasaki 6876104470SiwasakiClarified some warning/error messages. 6877104470Siwasaki 6878104470Siwasaki 6879104470Siwasaki---------------------------------------- 6880104470Siwasaki18 September 2002. Summary of changes for this release. 6881104470Siwasaki 6882104470Siwasaki 6883104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 6884104470Siwasaki 6885114237SnjlFixed a reported problem with reference chaining (via the Index() 6886193267Sjkimand RefOf() operators) in the ObjectType() and SizeOf() operators. 6887126372SnjlThe definition of these operators includes the dereferencing of 6888126372Snjlall chained references to return information on the base object. 6889104470Siwasaki 6890104470SiwasakiFixed a problem with stores to indexed package elements - the 6891104470Siwasakiexisting code would not complete the store if an "implicit 6892114237Snjlconversion" was not performed. In other words, if the existing 6893114237Snjlobject (package element) was to be replaced completely, the code 6894114237Snjldidn't handle this case. 6895104470Siwasaki 6896104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 6897104470Siwasakitarget name to refer to an object of type Integer, String, or 6898104470SiwasakiBuffer, in addition to the scoping object types (Device, 6899104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 6900114237SnjlThis allows existing AML code that has workarounds for a bug in 6901193267SjkimWindows to function properly. A warning is issued, however. This 6902126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 6903126372Snjlan example of this type of ASL code: 6904104470Siwasaki 6905104470Siwasaki Name(DEB,0x00) 6906104470Siwasaki Scope(DEB) 6907104470Siwasaki { 6908104470Siwasaki 6909114237SnjlFixed some reported problems with 64-bit integer support in the 6910114237Snjllocal implementation of C library functions (clib.c) 6911104470Siwasaki 6912104470Siwasaki 6913104470Siwasaki2) Linux 6914104470Siwasaki 6915104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 6916104470Siwasakiundefined in non-SMP. 6917104470Siwasaki 6918114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 6919114237Snjlsystems that do not have an interrupt override entry in the MADT. 6920104470Siwasaki 6921104470Siwasaki2.5 big driver reorganization (Pat Mochel) 6922104470Siwasaki 6923104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 6924104470Siwasaki 6925104470SiwasakiNew blacklist entries (Andi Kleen) 6926104470Siwasaki 6927114237SnjlBlacklist improvements. Split blacklist code out into a separate 6928114237Snjlfile. Move checking the blacklist to very early. Previously, we 6929114237Snjlwould use ACPI tables, and then halfway through init, check the 6930114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 6931114237Snjlback to non-ACPI. 6932104470Siwasaki 6933104470Siwasaki 6934104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 6935104470Siwasaki 6936114237SnjlFixed a problem where the typechecking code didn't know that an 6937114237Snjlalias could point to a method. In other words, aliases were not 6938114237Snjlbeing dereferenced during typechecking. 6939104470Siwasaki 6940104470Siwasaki 6941104470Siwasaki---------------------------------------- 6942104470Siwasaki29 August 2002. Summary of changes for this release. 6943104470Siwasaki 6944104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 6945104470Siwasaki 6946114237SnjlIf the target of a Scope() operator already exists, it must be an 6947114237Snjlobject type that actually opens a scope -- such as a Device, 6948193267SjkimMethod, Scope, etc. This is a fatal runtime error. Similar error 6949126372Snjlcheck has been added to the iASL compiler also. 6950104470Siwasaki 6951114237SnjlTightened up the namespace load to disallow multiple names in the 6952114237Snjlsame scope. This previously was allowed if both objects were of 6953114237Snjlthe same type. (i.e., a lookup was the same as entering a new 6954114237Snjlname). 6955104470Siwasaki 6956104470Siwasaki 6957104470Siwasaki2) Linux 6958104470Siwasaki 6959104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 6960104470Siwasakipolarity. 6961104470Siwasaki 6962104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 6963104470Siwasaki 6964104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 6965104470Siwasakiinterpreter *or* the tables. 6966104470Siwasaki 6967193267SjkimAdded arch-neutral support for parsing SLIT and SRAT tables (Kochi 6968126372SnjlTakayoshi) 6969104470Siwasaki 6970104470Siwasaki 6971104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 6972104470Siwasaki 6973104470SiwasakiImplemented namepath optimization for name declarations. For 6974104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 6975104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 6976104470Siwasaki\_SB_ scope. This optimization is in addition to the named 6977104470Siwasakireference path optimization first released in the previous 6978114237Snjlversion. This would seem to complete all possible optimizations 6979114237Snjlfor namepaths within the ASL/AML. 6980104470Siwasaki 6981114237SnjlIf the target of a Scope() operator already exists, it must be an 6982114237Snjlobject type that actually opens a scope -- such as a Device, 6983114237SnjlMethod, Scope, etc. 6984104470Siwasaki 6985114237SnjlImplemented a check and warning for unreachable code in the same 6986114237Snjlblock below a Return() statement. 6987104470Siwasaki 6988114237SnjlFixed a problem where the listing file was not generated if the 6989114237Snjlcompiler aborted if the maximum error count was exceeded (200). 6990104470Siwasaki 6991193267SjkimFixed a problem where the typechecking of method return values was 6992126372Snjlbroken. This includes the check for a return value when the 6993114237Snjlmethod is invoked as a TermArg (a return value is expected.) 6994104470Siwasaki 6995104470SiwasakiFixed a reported problem where EOF conditions during a quoted 6996104470Siwasakistring or comment caused a fault. 6997104470Siwasaki 6998104470Siwasaki 6999104470Siwasaki---------------------------------------- 7000102550Siwasaki15 August 2002. Summary of changes for this release. 7001102550Siwasaki 7002102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 7003102550Siwasaki 7004114237SnjlFixed a reported problem where a Store to a method argument that 7005193267Sjkimcontains a reference did not perform the indirect store correctly. 7006126372SnjlThis problem was created during the conversion to the new 7007126372Snjlreference object model - the indirect store to a method argument 7008126372Snjlcode was not updated to reflect the new model. 7009102550Siwasaki 7010114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 7011193267Sjkimhandle corner cases, and improve code legibility (Kochi Takayoshi) 7012102550Siwasaki 7013102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 7014114237Snjlprefix. The heavy use of the carat operator by the new namepath 7015193267Sjkimoptimization in the iASL compiler uncovered a problem with the AML 7016126372Snjlinterpreter handling of this prefix. In the case where one or 7017126372Snjlmore carats precede a single nameseg, the nameseg was treated as 7018126372Snjlstandalone and the search rule (to root) was inadvertently 7019114237Snjlapplied. This could cause both the iASL compiler and the 7020114237Snjlinterpreter to find the wrong object or to miss the error that 7021114237Snjlshould occur if the object does not exist at that exact pathname. 7022102550Siwasaki 7023114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 7024193267Sjkimload. This was a relatively minor tweak to the table loading code 7025126372Snjl(a problem caused by the unexpected encounter with a method 7026193267Sjkiminvocation not within a control method), but it does not solve the 7027126372Snjloverall issue of the execution of AML code at the table level. 7028126372SnjlThis investigation is still ongoing. 7029102550Siwasaki 7030193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7031126372Snjlbelow. These are the code and data sizes for the acpica.lib 7032126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7033126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7034126372Snjlversion of the code includes the debug output trace mechanism and 7035193267Sjkimhas a larger code and data size. Note that these values will vary 7036126372Snjldepending on the efficiency of the compiler and the compiler 7037126372Snjloptions used during generation. 7038102550Siwasaki 7039102550Siwasaki Previous Release 7040104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7041104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7042102550Siwasaki Current Release: 7043104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7044104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7045102550Siwasaki 7046102550Siwasaki 7047102550Siwasaki2) Linux 7048102550Siwasaki 7049102550SiwasakiRemove redundant slab.h include (Brad Hards) 7050102550Siwasaki 7051102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 7052102550Siwasaki 7053102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 7054102550Siwasaki 7055104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 7056104470SiwasakiMachek) 7057102550Siwasaki 7058102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 7059102550Siwasaki 7060102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 7061102550Siwasaki 7062102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 7063102550Siwasaki 7064102550Siwasaki 7065102550Siwasaki3) iASL Compiler/Disassembler 7066102550Siwasaki 7067114237SnjlReworked the compiler options to make them more consistent and to 7068114237Snjluse two-letter options where appropriate. We were running out of 7069114237Snjlsensible letters. This may break some makefiles, so check the 7070114237Snjlcurrent options list by invoking the compiler with no parameters. 7071102550Siwasaki 7072102550SiwasakiCompleted the design and implementation of the ASL namepath 7073114237Snjloptimization option for the compiler. This option optimizes all 7074114237Snjlreferences to named objects to the shortest possible path. The 7075193267Sjkimfirst attempt tries to utilize a single nameseg (4 characters) and 7076126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 7077126372Snjlcannot be used (because either the name is not in the search path 7078126372Snjlor there is a conflict with another object with the same name), 7079126372Snjlthe pathname is optimized using the carat prefix (usually a 7080126372Snjlshorter string than specifying the entire path from the root.) 7081102550Siwasaki 7082114237SnjlImplemented support to obtain the DSDT from the Windows registry 7083114237Snjl(when the disassembly option is specified with no input file). 7084114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 7085114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 7086114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 7087114237Snjlfunction in the DOS OSL to make the disassembler truly OS 7088114237Snjlindependent. 7089102550Siwasaki 7090114237SnjlImplemented a new option to disassemble and compile in one step. 7091114237SnjlWhen used without an input filename, this option will grab the 7092193267SjkimDSDT from the local machine, disassemble it, and compile it in one 7093126372Snjlstep. 7094102550Siwasaki 7095114237SnjlAdded a warning message for invalid escapes (a backslash followed 7096114237Snjlby any character other than the allowable escapes). This catches 7097114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 7098167802Sjkim 7099193267SjkimAlso, there are numerous instances in the ACPI specification where 7100126372Snjlthis error occurs. 7101102550Siwasaki 7102104470SiwasakiAdded a compiler option to disable all optimizations. This is 7103114237Snjlbasically the "compatibility mode" because by using this option, 7104114237Snjlthe AML code will come out exactly the same as other ASL 7105114237Snjlcompilers. 7106102550Siwasaki 7107114237SnjlAdded error messages for incorrectly ordered dependent resource 7108114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 7109114237Snjldependent resource list, nested dependent function macros (both 7110114237Snjlstart and end), and missing StartDependentFn macro. These are 7111114237Snjlcommon errors that should be caught at compile time. 7112102550Siwasaki 7113114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 7114114237Snjlmust be included in the namespace for proper disassembly (because 7115114237Snjlthe disassembler must know the number of arguments.) 7116102550Siwasaki 7117104470SiwasakiAdded an "optimization" message type that is optional (off by 7118114237Snjldefault). This message is used for all optimizations - including 7119193267Sjkimconstant folding, integer optimization, and namepath optimization. 7120102550Siwasaki 7121102550Siwasaki---------------------------------------- 7122102550Siwasaki25 July 2002. Summary of changes for this release. 7123102550Siwasaki 7124102550Siwasaki 7125102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 7126102550Siwasaki 7127114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 7128193267Sjkimcode and has been integrated into the iASL compiler (see below) as 7129126372Snjlwell as the single-step disassembly for the AML debugger and the 7130126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 7131126372Snjlresource templates and macros are fully supported. The 7132114237Snjldisassembler has been tested on over 30 different AML files, 7133114237Snjlproducing identical AML when the resulting disassembled ASL file 7134114237Snjlis recompiled with the same ASL compiler. 7135102550Siwasaki 7136114237SnjlModified the Resource Manager to allow zero interrupts and zero 7137114237Snjldma channels during the GetCurrentResources call. This was 7138114237Snjlcausing problems on some platforms. 7139102550Siwasaki 7140114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 7141114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 7142114237Snjlinterfaces. 7143102550Siwasaki 7144193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7145126372Snjlbelow. These are the code and data sizes for the acpica.lib 7146126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7147126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7148126372Snjlversion of the code includes the debug output trace mechanism and 7149193267Sjkimhas a larger code and data size. Note that these values will vary 7150126372Snjldepending on the efficiency of the compiler and the compiler 7151126372Snjloptions used during generation. 7152102550Siwasaki 7153102550Siwasaki Previous Release 7154104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7155104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7156102550Siwasaki Current Release: 7157104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7158104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7159102550Siwasaki 7160102550Siwasaki 7161102550Siwasaki2) Linux 7162102550Siwasaki 7163102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 7164102550Siwasaki 7165114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 7166114237Snjl(Richard Schaal) 7167102550Siwasaki 7168102550Siwasaki 7169102550Siwasaki3) iASL compiler 7170102550Siwasaki 7171114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 7172114237Snjloption invokes the disassembler to completely disassemble an 7173114237Snjlinput AML file, producing as output a text ASL file with the 7174114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 7175114237Snjlsource files.) A future enhancement will allow the disassembler 7176114237Snjlto obtain the BIOS DSDT from the registry under Windows. 7177102550Siwasaki 7178102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 7179102550Siwasakidescriptors where an invalid AML sequence was created. 7180102550Siwasaki 7181114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 7182114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 7183114237Snjlcausing reduction conflicts. 7184102550Siwasaki 7185104470SiwasakiFixed a problem where the Ones opcode could get converted to a 7186193267Sjkimvalue of zero if "Ones" was used where a byte, word or dword value 7187126372Snjlwas expected. The 64-bit value is now truncated to the correct 7188126372Snjlsize with the correct value. 7189102550Siwasaki 7190102550Siwasaki 7191167802Sjkim 7192102550Siwasaki---------------------------------------- 7193102550Siwasaki02 July 2002. Summary of changes for this release. 7194102550Siwasaki 7195102550Siwasaki 7196102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 7197102550Siwasaki 7198114237SnjlThe Table Manager code has been restructured to add several new 7199114237Snjlfeatures. Tables that are not required by the core subsystem 7200114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 7201193267Sjkimvalidated in any way and are returned from AcpiGetFirmwareTable if 7202126372Snjlrequested. The AcpiOsTableOverride interface is now called for 7203126372Snjleach table that is loaded by the subsystem in order to allow the 7204126372Snjlhost to override any table it chooses. Previously, only the DSDT 7205126372Snjlcould be overridden. Added one new files, tbrsdt.c and 7206114237Snjltbgetall.c. 7207102550Siwasaki 7208193267SjkimFixed a problem with the conversion of internal package objects to 7209126372Snjlexternal objects (when a package is returned from a control 7210114237Snjlmethod.) The return buffer length was set to zero instead of the 7211114237Snjlproper length of the package object. 7212102550Siwasaki 7213104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 7214114237Snjloperators when passing reference arguments to control methods. A 7215114237Snjlnew type of Reference object is used internally for references 7216114237Snjlproduced by the RefOf operator. 7217102550Siwasaki 7218193267SjkimAdded additional error messages in the Resource Manager to explain 7219126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 7220102550Siwasaki 7221104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 7222193267Sjkimfiner granularity initialization sequence. These two calls should 7223126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 7224114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 7225114237Snjlsame. 7226102550Siwasaki 7227102550Siwasaki 7228102550Siwasaki2) Linux 7229102550Siwasaki 7230114237SnjlUpdated the ACPI utilities module to understand the new style of 7231193267Sjkimfully resolved package objects that are now returned from the core 7232126372Snjlsubsystem. This eliminates errors of the form: 7233102550Siwasaki 7234102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 7235102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 7236102550Siwasaki Invalid element in package (not a device reference) 7237102550Siwasaki 7238102550SiwasakiThe method evaluation utility uses the new buffer allocation 7239102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 7240102550Siwasaki 7241102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 7242167802Sjkim 7243114237SnjlController before the namespace has been fully initialized, which 7244114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 7245114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 7246114237Snjllimited testing was performed of the added functionality.) 7247102550Siwasaki 7248102550SiwasakiFixed memory leaks in the EC driver. 7249102550Siwasaki 7250102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 7251102550Siwasaki 7252114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 7253114237Snjlno longer needed since acpi_evaluate_object can optionally 7254104470Siwasakiallocate memory for the return object. 7255102550Siwasaki 7256193267SjkimImplemented fix for keyboard hang when getting battery readings on 7257126372Snjlsome systems (Stephen White) 7258102550Siwasaki 7259102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 7260102550Siwasaki 7261114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 7262114237Snjlsupport 7263102550Siwasaki 7264102550Siwasaki---------------------------------------- 7265102550Siwasaki11 June 2002. Summary of changes for this release. 7266102550Siwasaki 7267102550Siwasaki 7268102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 7269102550Siwasaki 7270104470SiwasakiFixed a reported problem where constants such as Zero and One 7271114237Snjlappearing within _PRT packages were not handled correctly within 7272114237Snjlthe resource manager code. Originally reported against the ASL 7273114237Snjlcompiler because the code generator now optimizes integers to 7274193267Sjkimtheir minimal AML representation (i.e. AML constants if possible.) 7275126372SnjlThe _PRT code now handles all AML constant opcodes correctly 7276126372Snjl(Zero, One, Ones, Revision). 7277102550Siwasaki 7278102550SiwasakiFixed a problem with the Concatenate operator in the AML 7279193267Sjkiminterpreter where a buffer result object was incorrectly marked as 7280126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 7281102550Siwasaki 7282104470SiwasakiAll package sub-objects are now fully resolved before they are 7283114237Snjlreturned from the external ACPI interfaces. This means that name 7284114237Snjlstrings are resolved to object handles, and constant operators 7285114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 7286102550Siwasaki 7287102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 7288104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 7289104470Siwasakiwithin the AML stream. This has simplified and reduced the 7290104470Siwasakigenerated code size of the subsystem by eliminating about 10 7291104470Siwasakiswitch statements for these constants (which previously were 7292193267Sjkimcontained in Reference objects.) The complicating issues are that 7293126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 7294193267Sjkimoptional target operands and stores to constants are defined to be 7295126372Snjlno-ops. 7296102550Siwasaki 7297193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7298126372Snjlbelow. These are the code and data sizes for the acpica.lib 7299114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7300114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 7301114237Snjlversion of the code includes the debug output trace mechanism and 7302193267Sjkimhas a larger code and data size. Note that these values will vary 7303126372Snjldepending on the efficiency of the compiler and the compiler 7304114237Snjloptions used during generation. 7305102550Siwasaki 7306102550Siwasaki Previous Release 7307104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7308104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7309102550Siwasaki Current Release: 7310104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7311104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7312102550Siwasaki 7313102550Siwasaki 7314102550Siwasaki2) Linux 7315102550Siwasaki 7316167802Sjkim 7317104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 7318104470Siwasakibridges (Bjorn Helgaas). 7319102550Siwasaki 7320102550Siwasaki 7321102550Siwasaki3) iASL Compiler Version X2046: 7322102550Siwasaki 7323193267SjkimFixed a problem where the "_DDN" reserved name was defined to be a 7324126372Snjlcontrol method with one argument. There are no arguments, and 7325114237Snjl_DDN does not have to be a control method. 7326102550Siwasaki 7327114237SnjlFixed a problem with the Linux version of the compiler where the 7328114237Snjlsource lines printed with error messages were the wrong lines. 7329114237SnjlThis turned out to be the "LF versus CR/LF" difference between 7330114237SnjlWindows and Unix. This appears to be the longstanding issue 7331114237Snjlconcerning listing output and error messages. 7332102550Siwasaki 7333114237SnjlFixed a problem with the Linux version of compiler where opcode 7334114237Snjlnames within error messages were wrong. This was caused by a 7335114237Snjlslight difference in the output of the Flex tool on Linux versus 7336114237SnjlWindows. 7337102550Siwasaki 7338193267SjkimFixed a problem with the Linux compiler where the hex output files 7339126372Snjlcontained some garbage data caused by an internal buffer overrun. 7340102550Siwasaki 7341102550Siwasaki 7342102550Siwasaki---------------------------------------- 7343102550Siwasaki17 May 2002. Summary of changes for this release. 7344102550Siwasaki 7345102550Siwasaki 7346102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 7347102550Siwasaki 7348102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 7349104470SiwasakiOmniBook where the FADT revision number and the table size are 7350193267Sjkiminconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new 7351126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 7352126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 7353126372Snjlby the revision number. Although this is a BIOS bug, this is a 7354126372Snjlcase where the workaround is simple enough and with no side 7355126372Snjleffects, so it seemed prudent to add it. A warning message is 7356126372Snjlissued, however. 7357102550Siwasaki 7358193267SjkimImplemented minimum size checks for the fixed-length ACPI tables - 7359126372Snjl- the FADT and FACS, as well as consistency checks between the 7360114237Snjlrevision number and the table size. 7361102550Siwasaki 7362114237SnjlFixed a reported problem in the table override support where the 7363114237Snjlnew table pointer was incorrectly treated as a physical address 7364114237Snjlinstead of a logical address. 7365102550Siwasaki 7366114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 7367114237Snjlwith more descriptive codes. 7368102550Siwasaki 7369193267SjkimFixed a problem where an exception would occur if an ASL Field was 7370126372Snjldefined with no named Field Units underneath it (used by some 7371114237Snjlindex fields). 7372102550Siwasaki 7373193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7374126372Snjlbelow. These are the code and data sizes for the acpica.lib 7375126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7376126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7377126372Snjlversion of the code includes the debug output trace mechanism and 7378193267Sjkimhas a larger code and data size. Note that these values will vary 7379126372Snjldepending on the efficiency of the compiler and the compiler 7380126372Snjloptions used during generation. 7381102550Siwasaki 7382102550Siwasaki Previous Release 7383104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7384104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7385102550Siwasaki Current Release: 7386104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7387104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7388102550Siwasaki 7389102550Siwasaki 7390102550Siwasaki 7391102550Siwasaki2) Linux 7392102550Siwasaki 7393114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 7394114237Snjl(Paul D. and Dominik Brodowski) 7395102550Siwasaki 7396102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 7397102550Siwasaki 7398102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 7399102550Siwasaki 7400102550SiwasakiFix "MHz" typo (Dominik Brodowski) 7401102550Siwasaki 7402102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 7403102550Siwasaki 7404102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 7405102550Siwasaki 7406102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 7407102550Siwasaki 7408102550Siwasaki3) iASL Compiler Version X2044: 7409102550Siwasaki 7410193267SjkimImplemented error checking for the string used in the EISAID macro 7411193267Sjkim(Usually used in the definition of the _HID object.) The code now 7412126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 7413126372Snjluppercase letters and 4 hex digits. 7414102550Siwasaki 7415102550SiwasakiIf a raw string is used in the definition of the _HID object 7416102550Siwasaki(instead of the EISAID macro), the string must contain all 7417114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 7418114237Snjlof the asterisk.) 7419102550Siwasaki 7420114237SnjlImplemented checking for invalid use of ACPI reserved names for 7421114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 7422114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 7423114237SnjlPreviously, this check was only performed for control methods. 7424102550Siwasaki 7425114237SnjlImplemented an additional check on the Name operator to emit an 7426114237Snjlerror if a reserved name that must be implemented in ASL as a 7427114237Snjlcontrol method is used. We know that a reserved name must be a 7428114237Snjlmethod if it is defined with input arguments. 7429102550Siwasaki 7430193267SjkimThe warning emitted when a namespace object reference is not found 7431126372Snjlduring the cross reference phase has been changed into an error. 7432193267SjkimThe "External" directive should be used for names defined in other 7433126372Snjlmodules. 7434102550Siwasaki 7435102550Siwasaki 7436102550Siwasaki4) Tools and Utilities 7437102550Siwasaki 7438114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 7439114237Snjltested. 7440102550Siwasaki 7441193267SjkimFixed a problem with the output of both acpidump and adump16 where 7442126372Snjlthe indentation of closing parentheses and brackets was not 7443167802Sjkim 7444114237Snjlaligned properly with the parent block. 7445102550Siwasaki 7446102550Siwasaki 7447102550Siwasaki---------------------------------------- 7448102550Siwasaki03 May 2002. Summary of changes for this release. 7449102550Siwasaki 7450102550Siwasaki 7451102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 7452102550Siwasaki 7453114237SnjlAdded support a new OSL interface that allows the host operating 7454167802Sjkim 7455114237Snjlsystem software to override the DSDT found in the firmware - 7456193267SjkimAcpiOsTableOverride. With this interface, the OSL can examine the 7457126372Snjlversion of the firmware DSDT and replace it with a different one 7458126372Snjlif desired. 7459102550Siwasaki 7460114237SnjlAdded new external interfaces for accessing ACPI registers from 7461114237Snjldevice drivers and other system software - AcpiGetRegister and 7462114237SnjlAcpiSetRegister. This was simply an externalization of the 7463114237Snjlexisting AcpiHwBitRegister interfaces. 7464102550Siwasaki 7465104470SiwasakiFixed a regression introduced in the previous build where the 7466104470SiwasakiASL/AML CreateField operator always returned an error, 7467102550Siwasaki"destination must be a NS Node". 7468102550Siwasaki 7469114237SnjlExtended the maximum time (before failure) to successfully enable 7470114237SnjlACPI mode to 3 seconds. 7471102550Siwasaki 7472193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7473126372Snjlbelow. These are the code and data sizes for the acpica.lib 7474126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7475126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7476126372Snjlversion of the code includes the debug output trace mechanism and 7477193267Sjkimhas a larger code and data size. Note that these values will vary 7478126372Snjldepending on the efficiency of the compiler and the compiler 7479126372Snjloptions used during generation. 7480102550Siwasaki 7481102550Siwasaki Previous Release 7482104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 7483104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 7484102550Siwasaki Current Release: 7485104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7486104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7487102550Siwasaki 7488102550Siwasaki 7489102550Siwasaki2) Linux 7490102550Siwasaki 7491104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 7492193267Sjkimfree. While 3 out of 4 of our in-house systems work fine, the last 7493126372Snjlone still hangs when testing the LAPIC timer. 7494102550Siwasaki 7495114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 7496114237Snjlname. 7497102550Siwasaki 7498102550SiwasakiAdded warning on boot for Presario 711FR. 7499102550Siwasaki 7500102550SiwasakiSleep improvements (Pavel Machek) 7501102550Siwasaki 7502102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 7503102550Siwasaki 7504102550SiwasakiIA64: Fixed memory map functions (JI Lee) 7505102550Siwasaki 7506102550Siwasaki 7507102550Siwasaki3) iASL Compiler Version X2043: 7508102550Siwasaki 7509114237SnjlAdded support to allow the compiler to be integrated into the MS 7510114237SnjlVC++ development environment for one-button compilation of single 7511114237Snjlfiles or entire projects -- with error-to-source-line mapping. 7512102550Siwasaki 7513104470SiwasakiImplemented support for compile-time constant folding for the 7514104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 7515104470Siwasakispecification. This allows the ASL writer to use expressions 7516104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 7517114237Snjlevaluate to constants at compile time and will also simplify the 7518114237Snjlemitted AML in any such sub-expressions that can be folded 7519104470Siwasaki(evaluated at compile-time.) This increases the size of the 7520104470Siwasakicompiler significantly because a portion of the ACPI CA AML 7521104470Siwasakiinterpreter is included within the compiler in order to pre- 7522104470Siwasakievaluate constant expressions. 7523102550Siwasaki 7524114237Snjl 7525102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 7526114237Snjlcompiler to fault. (This macro is used in conjunction with the 7527114237Snjl_STR reserved name.) 7528102550Siwasaki 7529114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 7530114237SnjlOnes opcodes where possible to further reduce the size of integer 7531114237Snjlconstants and thus reduce the overall size of the generated AML 7532114237Snjlcode. 7533102550Siwasaki 7534193267SjkimImplemented error checking for new reserved terms for ACPI version 7535126372Snjl2.0A. 7536102550Siwasaki 7537104470SiwasakiImplemented the -qr option to display the current list of ACPI 7538104470Siwasakireserved names known to the compiler. 7539102550Siwasaki 7540104470SiwasakiImplemented the -qc option to display the current list of ASL 7541104470Siwasakioperators that are allowed within constant expressions and can 7542193267Sjkimtherefore be folded at compile time if the operands are constants. 7543102550Siwasaki 7544102550Siwasaki 7545102550Siwasaki4) Documentation 7546102550Siwasaki 7547193267SjkimUpdated the Programmer's Reference for new interfaces, data types, 7548126372Snjland memory allocation model options. 7549102550Siwasaki 7550114237SnjlUpdated the iASL Compiler User Reference to apply new format and 7551114237Snjladd information about new features and options. 7552102550Siwasaki 7553102550Siwasaki---------------------------------------- 7554102550Siwasaki19 April 2002. Summary of changes for this release. 7555102550Siwasaki 7556102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 7557102550Siwasaki 7558114237SnjlThe source code base for the Core Subsystem has been completely 7559114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 7560114237Snjlversions. The Lint option files used are included in the 7561114237Snjl/acpi/generate/lint directory. 7562102550Siwasaki 7563102550SiwasakiImplemented enhanced status/error checking across the entire 7564114237SnjlHardware manager subsystem. Any hardware errors (reported from 7565114237Snjlthe OSL) are now bubbled up and will abort a running control 7566114237Snjlmethod. 7567102550Siwasaki 7568167802Sjkim 7569114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 7570114237Snjlwas stored only with control method nodes, causing a fault when 7571114237Snjlnon-control method code was executed during table loading. The 7572114237Snjlsolution implemented uses a global variable to indicate table 7573114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 7574114237Snjlnot support mixed integer widths across different ACPI tables 7575114237Snjl(DSDT, SSDT). 7576102550Siwasaki 7577114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 7578114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 7579114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 7580114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 7581193267SjkimACPI 2.0 X field is zero (even though the table revision indicates 7582193267Sjkima full ACPI 2.0 table.) The ACPI specification will be updated to 7583126372Snjlclarify this issue. 7584102550Siwasaki 7585104470SiwasakiFixed a problem with the SystemMemory operation region handler 7586104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 7587104470Siwasakispecified access width was larger than a byte. This caused 7588104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 7589193267Sjkimaccessed with the width specified. On systems that do not support 7590193267Sjkimnon-aligned transfers, a check is made to guarantee proper address 7591126372Snjlalignment before proceeding in order to avoid an AML-caused 7592126372Snjlalignment fault within the kernel. 7593102550Siwasaki 7594102550Siwasaki 7595114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 7596114237Snjlof the 4-byte Irq field was extracted. 7597102550Siwasaki 7598114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 7599114237Snjlfunction was out of date and required a rewrite. 7600114237Snjl 7601193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7602126372Snjlbelow. These are the code and data sizes for the acpica.lib 7603126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7604126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7605126372Snjlversion of the code includes the debug output trace mechanism and 7606193267Sjkimhas a larger code and data size. Note that these values will vary 7607126372Snjldepending on the efficiency of the compiler and the compiler 7608126372Snjloptions used during generation. 7609102550Siwasaki 7610102550Siwasaki Previous Release 7611104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 7612104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 7613102550Siwasaki Current Release: 7614104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 7615104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 7616102550Siwasaki 7617102550Siwasaki 7618102550Siwasaki2) Linux 7619102550Siwasaki 7620102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 7621102550Siwasaki 7622102550Siwasaki 7623102550Siwasaki3) iASL Compiler Version X2042: 7624102550Siwasaki 7625104470SiwasakiImplemented an additional compile-time error check for a field 7626104470Siwasakiunit whose size + minimum access width would cause a run-time 7627114237Snjlaccess beyond the end-of-region. Previously, only the field size 7628114237Snjlitself was checked. 7629102550Siwasaki 7630104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 7631104470Siwasakiobject in preparation for compile-time evaluation of the type 7632104470Siwasaki3/4/5 ASL operators. 7633102550Siwasaki 7634102550Siwasaki 7635102550Siwasaki---------------------------------------- 7636102550SiwasakiSummary of changes for this release: 03_29_02 7637102550Siwasaki 7638102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 7639102550Siwasaki 7640104470SiwasakiImplemented support for late evaluation of TermArg operands to 7641193267SjkimBuffer and Package objects. This allows complex expressions to be 7642126372Snjlused in the declarations of these object types. 7643102550Siwasaki 7644193267SjkimFixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI 7645126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 7646126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 7647193267Sjkimthe field is returned as a buffer only if the field is larger than 7648126372Snjl64 bits. The TableRevision is now considered when making this 7649126372Snjlconversion to avoid incompatibility with existing ASL code. 7650102550Siwasaki 7651104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 7652114237Snjlallows an RSDP with either a logical or physical address. With 7653114237Snjlthis support, the host OS can now override all ACPI tables with 7654114237Snjlone logical RSDP. Includes implementation of "typed" pointer 7655114237Snjlsupport to allow a common data type for both physical and logical 7656114237Snjlpointers internally. This required a change to the 7657114237SnjlAcpiOsGetRootPointer interface. 7658102550Siwasaki 7659193267SjkimImplemented the use of ACPI 2.0 Generic Address Structures for all 7660193267SjkimGPE, Fixed Event, and PM Timer I/O. This allows the use of memory 7661126372Snjlmapped I/O for these ACPI features. 7662102550Siwasaki 7663102550SiwasakiInitialization now ignores not only non-required tables (All 7664114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 7665114237Snjlnot validate the table headers of unrecognized tables. 7666102550Siwasaki 7667102550SiwasakiFixed a problem where a notify handler could only be 7668102550Siwasakiinstalled/removed on an object of type Device. All "notify" 7669167802Sjkim 7670102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 7671102550SiwasakiThermal. 7672102550Siwasaki 7673114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 7674193267Sjkimcritical information is returned when this debug level is enabled. 7675102550Siwasaki 7676193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7677126372Snjlbelow. These are the code and data sizes for the acpica.lib 7678126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7679126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7680126372Snjlversion of the code includes the debug output trace mechanism and 7681193267Sjkimhas a larger code and data size. Note that these values will vary 7682126372Snjldepending on the efficiency of the compiler and the compiler 7683126372Snjloptions used during generation. 7684102550Siwasaki 7685102550Siwasaki Previous Release 7686104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 7687104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 7688102550Siwasaki Current Release: 7689104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 7690104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 7691102550Siwasaki 7692102550Siwasaki 7693102550Siwasaki2) Linux: 7694102550Siwasaki 7695114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 7696114237Snjl2.0-based processor performance control (e.g. Intel(R) 7697114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 7698114237Snjlthe Intel "applet" interface are not supported through this. The 7699114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 7700114237Snjl[Note that basic policy for controlling performance state 7701114237Snjltransitions will be included in the next version of ospmd.] The 7702114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 7703114237Snjlerrata handling underwent a complete overhaul (big thanks to 7704114237SnjlDominik Brodowski). 7705102550Siwasaki 7706114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 7707114237Snjlbased devices in the ACPI namespace are now dynamically bound 7708114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 7709114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 7710114237Snjlsubordinate PCI bridges. 7711102550Siwasaki 7712104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 7713104470Siwasakientries defined underneath PCI bridges. 7714102550Siwasaki 7715104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 7716104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 7717102550Siwasaki 7718114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 7719114237Snjl(acpi.c, mpparse.c) -- stay tuned. 7720102550Siwasaki 7721102550SiwasakiAdded back visual differentiation between fixed-feature and 7722114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 7723114237Snjlbutton/power/PWRF) to simplify button identification. 7724102550Siwasaki 7725114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 7726114237Snjlany "_THIS_MODULE defined but not used" messages. 7727102550Siwasaki 7728102550SiwasakiCan now shut down the system using "magic sysrq" key. 7729102550Siwasaki 7730102550Siwasaki 7731102550Siwasaki3) iASL Compiler version 2041: 7732102550Siwasaki 7733104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 7734104470Siwasakiconstants were not reported. 7735102550Siwasaki 7736193267SjkimImplemented a fix for the General Register template Address field. 7737126372SnjlThis field was 8 bits when it should be 64. 7738102550Siwasaki 7739193267SjkimFixed a problem where errors/warnings were no longer being emitted 7740126372Snjlwithin the listing output file. 7741102550Siwasaki 7742114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 7743114237Snjlexactly 4 characters, alphanumeric only. 7744102550Siwasaki 7745102550Siwasaki 7746102550Siwasaki 7747102550Siwasaki 7748102550Siwasaki---------------------------------------- 7749102550SiwasakiSummary of changes for this release: 03_08_02 7750102550Siwasaki 7751102550Siwasaki 7752102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 7753102550Siwasaki 7754114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 7755193267Sjkimkeyword could cause an interpreter error due to attempting to read 7756126372Snjlor write beyond the end of the parent Operation Region. 7757102550Siwasaki 7758193267SjkimFixed a problem in the SystemMemory Operation Region handler where 7759126372Snjlan attempt was made to map memory beyond the end of the region. 7760126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 7761126372Snjlerrors on some Linux systems. 7762102550Siwasaki 7763114237SnjlFixed a problem where the interpreter/namespace "search to root" 7764114237Snjlalgorithm was not functioning for some object types. Relaxed the 7765114237Snjlinternal restriction on the search to allow upsearches for all 7766114237Snjlexternal object types as well as most internal types. 7767102550Siwasaki 7768102550Siwasaki 7769102550Siwasaki2) Linux: 7770102550Siwasaki 7771193267SjkimWe now use safe_halt() macro versus individual calls to sti | hlt. 7772102550Siwasaki 7773193267SjkimWriting to the processor limit interface should now work. "echo 1" 7774126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 7775167802Sjkim 7776126372Snjldefault. 7777102550Siwasaki 7778102550Siwasaki 7779102550Siwasaki3) ASL compiler: 7780102550Siwasaki 7781102550SiwasakiFixed segfault on Linux version. 7782102550Siwasaki 7783102550Siwasaki 7784102550Siwasaki---------------------------------------- 7785102550SiwasakiSummary of changes for this release: 02_25_02 7786102550Siwasaki 7787102550Siwasaki1) ACPI CA Core Subsystem: 7788102550Siwasaki 7789102550Siwasaki 7790102550SiwasakiFixed a problem where the GPE bit masks were not initialized 7791102550Siwasakiproperly, causing erratic GPE behavior. 7792102550Siwasaki 7793193267SjkimImplemented limited support for multiple calling conventions. The 7794126372Snjlcode can be generated with either the VPL (variable parameter 7795114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 7796114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 7797114237Snjlwhen generated with FPL. 7798102550Siwasaki 7799102550Siwasaki 7800102550Siwasaki2) Linux 7801102550Siwasaki 7802114237SnjlRe-add some /proc/acpi/event functionality that was lost during 7803114237Snjlthe rewrite 7804102550Siwasaki 7805193267SjkimResolved issue with /proc events for fixed-feature buttons showing 7806126372Snjlup as the system device. 7807102550Siwasaki 7808193267SjkimFixed checks on C2/C3 latencies to be inclusive of maximum values. 7809102550Siwasaki 7810114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 7811102550Siwasaki 7812114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 7813102550Siwasaki 7814104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 7815104470Siwasakihysterisis. 7816102550Siwasaki 7817102550SiwasakiRestructured PRT support. 7818102550Siwasaki 7819102550Siwasaki 7820102550Siwasaki---------------------------------------- 7821102550SiwasakiSummary of changes for this label: 02_14_02 7822102550Siwasaki 7823102550Siwasaki 7824102550Siwasaki1) ACPI CA Core Subsystem: 7825102550Siwasaki 7826114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 7827114237SnjlFADT tables. 7828102550Siwasaki 7829114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 7830193267Sjkimbeen removed. All 64-bit platforms should be migrated to the ACPI 7831193267Sjkim2.0 tables. The actbl71.h header has been removed from the source 7832126372Snjltree. 7833102550Siwasaki 7834114237SnjlAll C macros defined within the subsystem have been prefixed with 7835114237Snjl"ACPI_" to avoid collision with other system include files. 7836102550Siwasaki 7837193267SjkimRemoved the return value for the two AcpiOsPrint interfaces, since 7838126372Snjlit is never used and causes lint warnings for ignoring the return 7839126372Snjlvalue. 7840102550Siwasaki 7841104470SiwasakiAdded error checking to all internal mutex acquire and release 7842104470Siwasakicalls. Although a failure from one of these interfaces is 7843104470Siwasakiprobably a fatal system error, these checks will cause the 7844114237Snjlimmediate abort of the currently executing method or interface. 7845102550Siwasaki 7846114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 7847193267Sjkimfault. This was a side effect of the deployment of the new memory 7848126372Snjlallocation model. 7849102550Siwasaki 7850193267SjkimFixed a couple of problems with the Global Lock support introduced 7851193267Sjkimin the last major build. The "common" (1.0/2.0) internal FACS was 7852126372Snjlbeing overwritten with the FACS signature and clobbering the 7853126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 7854126372Snjlunmapped after construction of the "common" FACS, preventing 7855126372Snjlaccess to the actual Global Lock field within it. The "common" 7856126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 7857126372Snjlis used simply as a global. 7858102550Siwasaki 7859193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7860126372Snjlbelow. These are the code and data sizes for the acpica.lib 7861126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7862126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7863126372Snjlversion of the code includes the debug output trace mechanism and 7864193267Sjkimhas a larger code and data size. Note that these values will vary 7865126372Snjldepending on the efficiency of the compiler and the compiler 7866126372Snjloptions used during generation. 7867102550Siwasaki 7868102550Siwasaki Previous Release (02_07_01) 7869104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 7870104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 7871102550Siwasaki Current Release: 7872104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 7873104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 7874102550Siwasaki 7875102550Siwasaki 7876102550Siwasaki2) Linux 7877102550Siwasaki 7878102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 7879102550Siwasakichanges described above. 7880102550Siwasaki 7881114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 7882114237Snjlproper poll functionality. 7883102550Siwasaki 7884102550SiwasakiFixed and restructured power management (acpi_bus). 7885102550Siwasaki 7886193267SjkimOnly create /proc "view by type" when devices of that class exist. 7887102550Siwasaki 7888104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 7889102550Siwasaki 7890102550SiwasakiImproved thermal zone code. 7891102550Siwasaki 7892102550Siwasaki 7893102550Siwasaki3) ASL Compiler, version X2039: 7894102550Siwasaki 7895114237Snjl 7896114237SnjlImplemented the new compiler restriction on ASL String hex/octal 7897193267Sjkimescapes to non-null, ASCII values. An error results if an invalid 7898126372Snjlvalue is used. (This will require an ACPI 2.0 specification 7899126372Snjlchange.) 7900102550Siwasaki 7901193267SjkimAML object labels that are output to the optional C and ASM source 7902126372Snjlare now prefixed with both the ACPI table signature and table ID 7903126372Snjlto help guarantee uniqueness within a large BIOS project. 7904102550Siwasaki 7905102550Siwasaki 7906102550Siwasaki---------------------------------------- 7907102550SiwasakiSummary of changes for this label: 02_01_02 7908102550Siwasaki 7909102550Siwasaki1) ACPI CA Core Subsystem: 7910102550Siwasaki 7911114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 7912114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 7913114237Snjlother changes for ACPI 2.0 support are complete. With 7914193267Sjkimsimultaneous code and data optimizations throughout the subsystem, 7915126372SnjlACPI 2.0 support has been implemented with almost no additional 7916126372Snjlcost in terms of code and data size. 7917102550Siwasaki 7918114237SnjlImplemented a new mechanism for allocation of return buffers. If 7919114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 7920114237Snjlbe allocated on behalf of the caller. Consolidated all return 7921114237Snjlbuffer validation and allocation to a common procedure. Return 7922193267Sjkimbuffers will be allocated via the primary OSL allocation interface 7923193267Sjkimsince it appears that a separate pool is not needed by most users. 7924126372SnjlIf a separate pool is required for these buffers, the caller can 7925126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 7926102550Siwasaki 7927102550SiwasakiImplemented support for string operands within the DerefOf 7928102550Siwasakioperator. 7929102550Siwasaki 7930114237SnjlRestructured the Hardware and Event managers to be table driven, 7931114237Snjlsimplifying the source code and reducing the amount of generated 7932114237Snjlcode. 7933102550Siwasaki 7934102550SiwasakiSplit the common read/write low-level ACPI register bitfield 7935104470Siwasakiprocedure into a separate read and write, simplifying the code 7936104470Siwasakiconsiderably. 7937102550Siwasaki 7938114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 7939114237Snjlused only a handful of times and didn't have enough critical mass 7940193267Sjkimfor a separate interface. Replaced with a common calloc procedure 7941126372Snjlin the core. 7942102550Siwasaki 7943104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 7944104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 7945114237SnjlReorganized the GPE information and shrunk a large array that was 7946114237Snjloriginally large enough to hold info for all possible GPEs (256) 7947114237Snjlto simply large enough to hold all GPEs up to the largest GPE 7948114237Snjlnumber on the machine. 7949102550Siwasaki 7950114237SnjlFixed a reported problem with resource structure alignment on 64- 7951114237Snjlbit platforms. 7952102550Siwasaki 7953102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 7954102550Siwasakiinterfaces to not require any flags for the common case of 7955102550Siwasakienabling/disabling a GPE. 7956102550Siwasaki 7957104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 7958102550Siwasaki 7959114237SnjlMost TBDs in comments within the source code have been resolved 7960114237Snjland eliminated. 7961102550Siwasaki 7962167802Sjkim 7963102550SiwasakiFixed a problem in the interpreter where a standalone parent 7964102550Siwasakiprefix (^) was not handled correctly in the interpreter and 7965102550Siwasakidebugger. 7966102550Siwasaki 7967102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 7968102550Siwasaki 7969193267SjkimImplemented Field support in the ASL Load operator. This allows a 7970126372Snjltable to be loaded from a named field, in addition to loading a 7971114237Snjltable directly from an Operation Region. 7972102550Siwasaki 7973193267SjkimImplemented timeout and handle support in the external Global Lock 7974126372Snjlinterfaces. 7975102550Siwasaki 7976114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 7977193267Sjkimlonger being generated correctly during the dump of named objects. 7978102550Siwasaki 7979102550SiwasakiModified the AML debugger to give a full display of if/while 7980102550Siwasakipredicates instead of just one AML opcode at a time. (The 7981193267Sjkimpredicate can have several nested ASL statements.) The old method 7982126372Snjlwas confusing during single stepping. 7983102550Siwasaki 7984193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7985126372Snjlbelow. These are the code and data sizes for the acpica.lib 7986114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7987114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 7988114237Snjlversion of the code includes the debug output trace mechanism and 7989193267Sjkimhas a larger code and data size. Note that these values will vary 7990126372Snjldepending on the efficiency of the compiler and the compiler 7991114237Snjloptions used during generation. 7992102550Siwasaki 7993102550Siwasaki Previous Release (12_18_01) 7994114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 7995114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 7996102550Siwasaki Current Release: 7997114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 7998114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 7999102550Siwasaki 8000102550Siwasaki2) Linux 8001102550Siwasaki 8002104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 8003104470Siwasakidriver) 8004102550Siwasaki 8005102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 8006102550Siwasaki 8007102550SiwasakiNew thermal policy (Thermal driver) 8008102550Siwasaki 8009102550SiwasakiMany updates to /proc 8010102550Siwasaki 8011102550SiwasakiBattery "low" event support (Battery driver) 8012102550Siwasaki 8013104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 8014102550Siwasaki 8015104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 8016102550Siwasaki 8017102550SiwasakiMenuconfig options redesigned 8018102550Siwasaki 8019102550Siwasaki3) ASL Compiler, version X2037: 8020102550Siwasaki 8021193267SjkimImplemented several new output features to simplify integration of 8022126372SnjlAML code into firmware: 1) Output the AML in C source code with 8023193267Sjkimlabels for each named ASL object. The original ASL source code 8024193267Sjkimis interleaved as C comments. 2) Output the AML in ASM source code 8025126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 8026126372Snjlraw hex table form, in either C or ASM. 8027102550Siwasaki 8028102550SiwasakiImplemented support for optional string parameters to the 8029102550SiwasakiLoadTable operator. 8030102550Siwasaki 8031104470SiwasakiCompleted support for embedded escape sequences within string 8032114237Snjlliterals. The compiler now supports all single character escapes 8033114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 8034114237Snjlnull byte into a string literal (via the hex/octal escape) causes 8035114237Snjlthe string to be immediately terminated. A warning is issued. 8036102550Siwasaki 8037104470SiwasakiFixed a problem where incorrect AML was generated for the case 8038104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 8039102550Siwasaki 8040102550Siwasaki) with no trailing name segments. 8041102550Siwasaki 8042102550SiwasakiThe compiler has been successfully generated with a 64-bit C 8043102550Siwasakicompiler. 8044102550Siwasaki 8045102550Siwasaki 8046102550Siwasaki 8047102550Siwasaki 8048102550Siwasaki---------------------------------------- 8049102550SiwasakiSummary of changes for this label: 12_18_01 8050102550Siwasaki 8051102550Siwasaki1) Linux 8052102550Siwasaki 8053114237SnjlEnhanced blacklist with reason and severity fields. Any table's 8054114237Snjlsignature may now be used to identify a blacklisted system. 8055102550Siwasaki 8056114237SnjlCall _PIC control method to inform the firmware which interrupt 8057114237Snjlmodel the OS is using. Turn on any disabled link devices. 8058102550Siwasaki 8059102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 8060102550Siwasaki 8061102550Siwasaki 2) ACPI CA Core Subsystem: 8062102550Siwasaki 8063193267SjkimImplemented ACPI 2.0 semantics for the "Break" operator (Exit from 8064126372Snjlwhile loop) 8065102550Siwasaki 8066102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 8067102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 8068193267Sjkimoperators. All new ACPI 2.0 operators are now implemented in both 8069193267Sjkimthe ASL compiler and the AML interpreter. The only remaining ACPI 8070126372Snjl2.0 task is support for the String data type in the DerefOf 8071193267Sjkimoperator. Fixed a problem with AcquireMutex where the status code 8072126372Snjlwas lost if the caller had to actually wait for the mutex. 8073102550Siwasaki 8074104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 8075102550Siwasaki 8076193267SjkimCompleted implementation of the external Global Lock interfaces -- 8077126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 8078126372SnjlHandler parameters were added. 8079102550Siwasaki 8080102550SiwasakiCompleted another pass at removing warnings and issues when 8081114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 8082114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 8083114237Snjladd and subtract (diff) macros have changed considerably. 8084102550Siwasaki 8085167802Sjkim 8086114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 8087114237Snjl64-bit platforms, 32-bits on all others. This type is used 8088193267Sjkimwherever memory allocation and/or the C sizeof() operator is used, 8089126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 8090126372Snjland AcpiOsCallocate. 8091102550Siwasaki 8092102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 8093102550Siwasaki 8094193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8095126372Snjlbelow. These are the code and data sizes for the acpica.lib 8096114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8097114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8098114237Snjlversion of the code includes the debug output trace mechanism and 8099114237Snjlhas a larger code and data size. Note that these values will vary 8100114237Snjldepending on the efficiency of the compiler and the compiler 8101114237Snjloptions used during generation. 8102102550Siwasaki 8103102550Siwasaki Previous Release (12_05_01) 8104114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8105114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8106102550Siwasaki Current Release: 8107114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8108114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8109102550Siwasaki 8110102550Siwasaki 3) ASL Compiler, version X2034: 8111102550Siwasaki 8112114237SnjlNow checks for (and generates an error if detected) the use of a 8113114237SnjlBreak or Continue statement without an enclosing While statement. 8114102550Siwasaki 8115167802Sjkim 8116102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 8117102550Siwasakicompiler. 8118102550Siwasaki 8119102550Siwasaki ---------------------------------------- 8120102550SiwasakiSummary of changes for this label: 12_05_01 8121102550Siwasaki 8122102550Siwasaki 1) ACPI CA Core Subsystem: 8123102550Siwasaki 8124102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 8125104470Siwasakioperator creates a new copy of an object (and is also used to 8126193267Sjkimbypass the "implicit conversion" mechanism of the Store operator.) 8127102550Siwasaki 8128102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 8129102550Siwasakiimplemented. The change is that performing a SizeOf on a 8130114237Snjlreference object causes an automatic dereference of the object to 8131114237Snjltha actual value before the size is evaluated. This behavior was 8132114237Snjlundefined in ACPI 1.0. 8133102550Siwasaki 8134114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 8135114237Snjlhave been implemented. The interrupt polarity and mode are now 8136114237Snjlindependently set. 8137102550Siwasaki 8138114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 8139114237Snjlappearing in Package objects were not properly converted to 8140114237Snjlintegers when the internal Package was converted to an external 8141114237Snjlobject (via the AcpiEvaluateObject interface.) 8142102550Siwasaki 8143114237SnjlFixed a problem with the namespace object deletion mechanism for 8144114237Snjlobjects created by control methods. There were two parts to this 8145193267Sjkimproblem: 1) Objects created during the initialization phase method 8146193267Sjkimparse were not being deleted, and 2) The object owner ID mechanism 8147126372Snjlto track objects was broken. 8148102550Siwasaki 8149114237SnjlFixed a problem where the use of the ASL Scope operator within a 8150114237Snjlcontrol method would result in an invalid opcode exception. 8151102550Siwasaki 8152114237SnjlFixed a problem introduced in the previous label where the buffer 8153114237Snjllength required for the _PRT structure was not being returned 8154114237Snjlcorrectly. 8155102550Siwasaki 8156193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8157126372Snjlbelow. These are the code and data sizes for the acpica.lib 8158114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8159114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8160114237Snjlversion of the code includes the debug output trace mechanism and 8161193267Sjkimhas a larger code and data size. Note that these values will vary 8162126372Snjldepending on the efficiency of the compiler and the compiler 8163114237Snjloptions used during generation. 8164102550Siwasaki 8165102550Siwasaki Previous Release (11_20_01) 8166114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8167114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8168102550Siwasaki 8169102550Siwasaki Current Release: 8170114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8171114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8172102550Siwasaki 8173102550Siwasaki 2) Linux: 8174102550Siwasaki 8175102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 8176102550Siwasaki 8177104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 8178114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 8179114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 8180114237Snjlentries are treated as if they were static (not yet 8181114237Snjlreconfigurable). Architecture- specific code to use this data is 8182114237Snjlabsent on IA32 but should be available shortly. 8183102550Siwasaki 8184114237SnjlChanged the initialization sequence to start the ACPI interpreter 8185114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 8186114237Snjlin init/main.c. This ordering is required to support PRT and 8187114237Snjlfacilitate other (future) enhancement. A side effect is that the 8188193267SjkimACPI bus driver and certain device drivers can no longer be loaded 8189126372Snjlas modules. 8190102550Siwasaki 8191104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 8192104470SiwasakiRouting support to be included without the ACPI Bus and other 8193104470Siwasakidevice drivers. 8194102550Siwasaki 8195102550Siwasaki 3) ASL Compiler, version X2033: 8196102550Siwasaki 8197102550SiwasakiFixed some issues with the use of the new CopyObject and 8198102550SiwasakiDataTableRegion operators. Both are fully functional. 8199102550Siwasaki 8200102550Siwasaki ---------------------------------------- 8201102550SiwasakiSummary of changes for this label: 11_20_01 8202102550Siwasaki 8203102550Siwasaki 20 November 2001. Summary of changes for this release. 8204102550Siwasaki 8205102550Siwasaki 1) ACPI CA Core Subsystem: 8206102550Siwasaki 8207104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 8208193267SjkimInteger, String, or Buffer to an Index of a Buffer will store only 8209126372Snjlthe least-significant byte of the source to the Indexed buffer 8210126372Snjlbyte. Multiple writes are not performed. 8211102550Siwasaki 8212104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 8213104470Siwasakioperator was not recorded correctly into the field object. 8214102550Siwasaki 8215102550SiwasakiFixed a problem where ASL Event objects were created in a 8216114237Snjlsignalled state. Events are now created in an unsignalled state. 8217102550Siwasaki 8218114237SnjlThe internal object cache is now purged after table loading and 8219114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 8220114237Snjlthe assumption that object use is greatest during the parse phase 8221193267Sjkimof the entire table (versus the run-time use of individual control 8222126372Snjlmethods.) 8223102550Siwasaki 8224102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 8225102550Siwasaki 8226193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8227126372Snjlfeature development with an actual reduction in the library size. 8228126372SnjlCurrent core subsystem library sizes are shown below. These are 8229126372Snjlthe code and data sizes for the acpica.lib produced by the 8230193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8231126372Snjlany ACPI driver or OSPM code. The debug version of the code 8232126372Snjlincludes the debug output trace mechanism and has a larger code 8233126372Snjland data size. Note that these values will vary depending on the 8234126372Snjlefficiency of the compiler and the compiler options used during 8235126372Snjlgeneration. 8236102550Siwasaki 8237102550Siwasaki Previous Release (11_09_01): 8238114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8239114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8240102550Siwasaki 8241102550Siwasaki Current Release: 8242114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8243114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8244102550Siwasaki 8245102550Siwasaki 2) Linux: 8246102550Siwasaki 8247114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 8248114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 8249114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 8250114237Snjlnear future. This functionality replaces 8251114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 8252114237Snjl2.4.15-preX release. To enable this feature you must add 8253114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 8254193267Sjkimfor CONFIG_ACPI_BOOT for more information. An IA-64 release is in 8255126372Snjlthe works... 8256102550Siwasaki 8257114237SnjlRestructured the configuration options to allow boot-time table 8258114237Snjlparsing support without inclusion of the ACPI Interpreter (and 8259114237Snjlother) code. 8260102550Siwasaki 8261193267SjkimNOTE: This release does not include fixes for the reported events, 8262126372Snjlpower-down, and thermal passive cooling issues (coming soon). 8263102550Siwasaki 8264102550Siwasaki 3) ASL Compiler: 8265102550Siwasaki 8266114237SnjlAdded additional typechecking for Fields within restricted access 8267114237SnjlOperation Regions. All fields within EC and CMOS regions must be 8268114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 8269114237Snjldeclared with the BufferAcc access type. 8270102550Siwasaki 8271114237SnjlFixed a problem where the listing file output of control methods 8272114237Snjlno longer interleaved the actual AML code with the ASL source 8273114237Snjlcode. 8274102550Siwasaki 8275102550Siwasaki 8276102550Siwasaki 8277167802Sjkim 8278102550Siwasaki---------------------------------------- 8279102550SiwasakiSummary of changes for this label: 11_09_01 8280102550Siwasaki 8281102550Siwasaki1) ACPI CA Core Subsystem: 8282102550Siwasaki 8283114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 8284193267SjkimBuffer, String, or Integer source operand that is smaller than the 8285126372Snjltarget field. In these cases, the source operand is zero-extended 8286126372Snjlto fill the target field. 8287102550Siwasaki 8288104470SiwasakiFixed a problem where a Field starting bit offset (within the 8289104470Siwasakiparent operation region) was calculated incorrectly if the 8290167802Sjkim 8291104470Siwasakialignment of the field differed from the access width. This 8292114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 8293114237Snjlpossibly other fields that use the "AccessAny" keyword. 8294102550Siwasaki 8295114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 8296114237Snjlstores through method arguments did not operate correctly. 8297102550Siwasaki 8298102550Siwasaki2) Linux: 8299102550Siwasaki 8300102550SiwasakiImplemented boot-time ACPI table parsing support 8301114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 8302114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 8303114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 8304193267Sjkimprocessors, memory, and interrupts during setup_arch(). Note that 8305126372Snjlthis patch does not include the required architecture-specific 8306126372Snjlchanges required to apply this information -- subsequent patches 8307126372Snjlwill be posted for both IA32 and IA64 to achieve this. 8308102550Siwasaki 8309114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 8310114237SnjlMochel. This allows IA32 systems to transition to/from various 8311114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 8312114237Snjldriver model and power-manageable drivers will prevent its 8313114237Snjl(successful) use on most systems. 8314102550Siwasaki 8315114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 8316193267Sjkimsubmenu, unified IA32 and IA64 options, added new "Boot using ACPI 8317126372Snjltables" option, etc. 8318102550Siwasaki 8319114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 8320114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 8321114237Snjltransactions. 8322102550Siwasaki 8323102550Siwasaki ---------------------------------------- 8324102550SiwasakiSummary of changes for this label: 11_02_01 8325102550Siwasaki 8326102550Siwasaki1) ACPI CA Core Subsystem: 8327102550Siwasaki 8328102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 8329102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 8330102550Siwasakiimplemented. 8331102550Siwasaki 8332114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 8333114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 8334193267SjkimPciConfiguration(), Read/Write Memory(), and Read/Write Port() now 8335126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 8336193267Sjkimthe value parameter for the address space handler interface is now 8337193267Sjkiman ACPI_INTEGER. OSL implementations of these interfaces must now 8338126372Snjlhandle the case where the Width parameter is 64. 8339102550Siwasaki 8340104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 8341104470Siwasakidisassembly for IndexFields was not supported correctly. 8342102550Siwasaki 8343102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 8344104470Siwasakisupported. During field access, a check is performed to ensure 8345114237Snjlthat the value written to an Index or Bank register is not out of 8346114237Snjlthe range of the register. The Index (or Bank) register is 8347114237Snjlwritten before each access to the field data. Future support will 8348114237Snjlinclude allowing individual IndexFields to be wider than the 8349114237SnjlDataRegister width. 8350102550Siwasaki 8351114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 8352114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 8353114237Snjla boundary case that occurred when a DWORD field was written to a 8354114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 8355114237Snjlinterpreter to write one datum too many. 8356102550Siwasaki 8357102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 8358114237Snjlstarting bit address of a field was incorrectly calculated if the 8359114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 8360114237SnjlQwordAcc). 8361102550Siwasaki 8362104470SiwasakiFields: Fixed a problem where forward references to individual 8363193267SjkimFieldUnits (individual Field names within a Field definition) were 8364126372Snjlnot resolved during the AML table load. 8365102550Siwasaki 8366104470SiwasakiFields: Fixed a problem where forward references from a Field 8367104470Siwasakidefinition to the parent Operation Region definition were not 8368104470Siwasakiresolved during the AML table load. 8369104470Siwasaki 8370114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 8371114237Snjlduring AML table load. 8372102550Siwasaki 8373193267SjkimAcpi Interfaces: Fixed a problem where the AcpiGetName() interface 8374126372Snjlreturned an incorrect name for the root node. 8375102550Siwasaki 8376193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8377126372Snjlfeature development with an actual reduction in the library size. 8378126372SnjlCurrent core subsystem library sizes are shown below. These are 8379126372Snjlthe code and data sizes for the acpica.lib produced by the 8380193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8381126372Snjlany ACPI driver or OSPM code. The debug version of the code 8382126372Snjlincludes the debug output trace mechanism and has a larger code 8383126372Snjland data size. Note that these values will vary depending on the 8384126372Snjlefficiency of the compiler and the compiler options used during 8385126372Snjlgeneration. 8386102550Siwasaki 8387102550Siwasaki Previous Release (10_18_01): 8388114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8389114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8390102550Siwasaki 8391102550Siwasaki Current Release: 8392114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8393114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8394102550Siwasaki 8395102550Siwasaki 2) Linux: 8396102550Siwasaki 8397102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 8398102550SiwasakiMODULE_LICENSE("GPL") to all modules. 8399102550Siwasaki 8400102550Siwasaki 3) ASL Compiler version X2030: 8401102550Siwasaki 8402104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 8403104470Siwasakiflagged as errors. 8404102550Siwasaki 8405102550Siwasaki 4) Documentation: 8406102550Siwasaki 8407104470SiwasakiProgrammer Reference updated to reflect OSL and address space 8408104470Siwasakihandler interface changes described above. 8409102550Siwasaki 8410102550Siwasaki---------------------------------------- 8411102550SiwasakiSummary of changes for this label: 10_18_01 8412102550Siwasaki 8413102550SiwasakiACPI CA Core Subsystem: 8414102550Siwasaki 8415193267SjkimFixed a problem with the internal object reference count mechanism 8416126372Snjlthat occasionally caused premature object deletion. This resolves 8417126372Snjlall of the outstanding problem reports where an object is deleted 8418193267Sjkimin the middle of an interpreter evaluation. Although this problem 8419126372Snjlonly showed up in rather obscure cases, the solution to the 8420126372Snjlproblem involved an adjustment of all reference counts involving 8421126372Snjlobjects attached to namespace nodes. 8422102550Siwasaki 8423102550SiwasakiFixed a problem with Field support in the interpreter where 8424114237Snjlwriting to an aligned field whose length is an exact multiple (2 8425193267Sjkimor greater) of the field access granularity would cause an attempt 8426126372Snjlto write beyond the end of the field. 8427102550Siwasaki 8428102550SiwasakiThe top level AML opcode execution functions within the 8429102550Siwasakiinterpreter have been renamed with a more meaningful and 8430102550Siwasakiconsistent naming convention. The modules exmonad.c and 8431102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 8432102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 8433102550Siwasaki 8434114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 8435102550Siwasaki 8436114237SnjlFixed a problem where the AML debugger was causing some internal 8437114237Snjlobjects to not be deleted during subsystem termination. 8438102550Siwasaki 8439104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 8440104470Siwasakiwhere the subsystem would fault if the named object to be 8441104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 8442102550Siwasaki 8443102550SiwasakiFixed a problem with IndexFields and BankFields where the 8444114237Snjlsubsystem would fault if the index, data, or bank registers were 8445114237Snjlnot defined in the same scope as the field itself. 8446102550Siwasaki 8447104470SiwasakiAdded printf format string checking for compilers that support 8448104470Siwasakithis feature. Corrected more than 50 instances of issues with 8449104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 8450104470Siwasakithroughout the core subsystem code. 8451102550Siwasaki 8452104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 8453193267Sjkimimplemented in the core - the value "2" since the ACPI 2.0 support 8454126372Snjlis more than 50% implemented. 8455102550Siwasaki 8456114237SnjlEnhanced the output of the AML debugger "dump namespace" command 8457114237Snjlto output in a more human-readable form. 8458102550Siwasaki 8459114237SnjlCurrent core subsystem library code sizes are shown below. These 8460167802Sjkim 8461114237Snjlare the code and data sizes for the acpica.lib produced by the 8462193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8463126372Snjlany ACPI driver or OSPM code. The debug version of the code 8464126372Snjlincludes the full debug trace mechanism -- leading to a much 8465167802Sjkim 8466114237Snjllarger code and data size. Note that these values will vary 8467114237Snjldepending on the efficiency of the compiler and the compiler 8468114237Snjloptions used during generation. 8469102550Siwasaki 8470102550Siwasaki Previous Label (09_20_01): 8471114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 8472114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 8473102550Siwasaki 8474102550Siwasaki This Label: 8475102550Siwasaki 8476114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8477114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8478114237Snjl 8479102550SiwasakiLinux: 8480102550Siwasaki 8481104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 8482104470Siwasakiknown ASL/AML problems. 8483102550Siwasaki 8484193267SjkimEnhanced the /proc interface for the thermal zone driver and added 8485126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 8486193267Sjkimfile now includes threshold/policy information, and allows setting 8487126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 8488193267Sjkimto the 'info' file. Examples: "echo tzp=5 > info" sets the polling 8489126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 8490126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 8491102550Siwasaki 8492104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 8493104470Siwasakiwhen loading the control method battery driver. 8494102550Siwasaki 8495102550Siwasaki ---------------------------------------- 8496102550SiwasakiSummary of changes for this label: 09_20_01 8497102550Siwasaki 8498102550Siwasaki ACPI CA Core Subsystem: 8499102550Siwasaki 8500104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 8501104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 8502114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 8503114237Snjlsleeps.) 8504102550Siwasaki 8505104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 8506104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 8507104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 8508104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 8509102550Siwasaki 8510114237SnjlA local double-precision divide/modulo module has been added to 8511114237Snjlenhance portability to OS kernels where a 64-bit math library is 8512114237Snjlnot available. The new module is "utmath.c". 8513102550Siwasaki 8514104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 8515114237Snjlstack. Originally over 2K, the maximum stack usage is now below 8516114237Snjl2K at 1860 bytes (1.82k) 8517102550Siwasaki 8518114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 8519193267Sjkimroot table pointer was not mapped into a logical address properly. 8520102550Siwasaki 8521193267SjkimFixed a problem where a NULL pointer was being dereferenced in the 8522126372Snjlinterpreter code for the ASL Notify operator. 8523102550Siwasaki 8524102550SiwasakiFixed a problem where the use of the ASL Revision operator 8525114237Snjlreturned an error. This operator now returns the current version 8526114237Snjlof the ACPI CA core subsystem. 8527102550Siwasaki 8528114237SnjlFixed a problem where objects passed as control method parameters 8529114237Snjlto AcpiEvaluateObject were always deleted at method termination. 8530114237SnjlHowever, these objects may end up being stored into the namespace 8531114237Snjlby the called method. The object reference count mechanism was 8532114237Snjlapplied to these objects instead of a force delete. 8533102550Siwasaki 8534114237SnjlFixed a problem where static strings or buffers (contained in the 8535114237SnjlAML code) that are declared as package elements within the ASL 8536114237Snjlcode could cause a fault because the interpreter would attempt to 8537114237Snjldelete them. These objects are now marked with the "static 8538114237Snjlobject" flag to prevent any attempt to delete them. 8539102550Siwasaki 8540114237SnjlImplemented an interpreter optimization to use operands directly 8541114237Snjlfrom the state object instead of extracting the operands to local 8542114237Snjlvariables. This reduces stack use and code size, and improves 8543114237Snjlperformance. 8544102550Siwasaki 8545193267SjkimThe module exxface.c was eliminated as it was an unnecessary extra 8546126372Snjllayer of code. 8547102550Siwasaki 8548114237SnjlCurrent core subsystem library code sizes are shown below. These 8549114237Snjlare the code and data sizes for the acpica.lib produced by the 8550193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8551126372Snjlany ACPI driver or OSPM code. The debug version of the code 8552126372Snjlincludes the full debug trace mechanism -- leading to a much 8553114237Snjllarger code and data size. Note that these values will vary 8554114237Snjldepending on the efficiency of the compiler and the compiler 8555114237Snjloptions used during generation. 8556102550Siwasaki 8557102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 8558114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 8559114237SnjlTotal (Previously 195K) 8560102550Siwasaki 8561102550SiwasakiLinux: 8562102550Siwasaki 8563114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 8564114237SnjlInteger objects are now 64 bits wide 8565102550Siwasaki 8566114237SnjlAll Acpi data types and structures are now in lower case. Only 8567114237SnjlAcpi macros are upper case for differentiation. 8568102550Siwasaki 8569102550Siwasaki Documentation: 8570102550Siwasaki 8571102550SiwasakiChanges to the external interfaces as described above. 8572102550Siwasaki 8573102550Siwasaki ---------------------------------------- 8574102550SiwasakiSummary of changes for this label: 08_31_01 8575102550Siwasaki 8576102550Siwasaki ACPI CA Core Subsystem: 8577102550Siwasaki 8578114237SnjlA bug with interpreter implementation of the ASL Divide operator 8579114237Snjlwas found and fixed. The implicit function return value (not the 8580114237Snjlexplicit store operands) was returning the remainder instead of 8581114237Snjlthe quotient. This was a longstanding bug and it fixes several 8582114237Snjlknown outstanding issues on various platforms. 8583102550Siwasaki 8584104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 8585193267Sjkimbeen further optimized for size. There are 700 invocations of the 8586126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 8587126372Snjlthe debug version of the subsystem significantly. 8588102550Siwasaki 8589114237SnjlA stack trace mechanism has been implemented. The maximum stack 8590193267Sjkimusage is about 2K on 32-bit platforms. The debugger command "stat 8591126372Snjlstack" will display the current maximum stack usage. 8592102550Siwasaki 8593114237SnjlAll public symbols and global variables within the subsystem are 8594114237Snjlnow prefixed with the string "Acpi". This keeps all of the 8595114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 8596114237Snjlwith other kernel subsystems. 8597102550Siwasaki 8598114237SnjlMost of the internal fixed lookup tables have been moved into the 8599114237Snjlcode segment via the const operator. 8600102550Siwasaki 8601104470SiwasakiSeveral enhancements have been made to the interpreter to both 8602104470Siwasakireduce the code size and improve performance. 8603102550Siwasaki 8604114237SnjlCurrent core subsystem library code sizes are shown below. These 8605114237Snjlare the code and data sizes for the acpica.lib produced by the 8606193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8607126372Snjlany ACPI driver or OSPM code. The debug version of the code 8608126372Snjlincludes the full debug trace mechanism which contains over 700 8609126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 8610126372Snjlinvocations, and over 900 function exit macro invocations -- 8611126372Snjlleading to a much larger code and data size. Note that these 8612114237Snjlvalues will vary depending on the efficiency of the compiler and 8613114237Snjlthe compiler options used during generation. 8614102550Siwasaki 8615102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 8616102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 8617102550Siwasaki 8618102550Siwasaki Linux: 8619102550Siwasaki 8620104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 8621102550Siwasaki 8622102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 8623102550Siwasaki 8624102550Siwasaki ASL Compiler, version X2026: 8625102550Siwasaki 8626104470SiwasakiFixed a problem introduced in the previous label where the AML 8627167802Sjkim 8628104470Siwasakicode emitted for package objects produced packages with zero 8629104470Siwasakilength. 8630102550Siwasaki 8631102550Siwasaki ---------------------------------------- 8632102550SiwasakiSummary of changes for this label: 08_16_01 8633102550Siwasaki 8634102550SiwasakiACPI CA Core Subsystem: 8635102550Siwasaki 8636114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 8637114237SnjlAML interpreter (These are already supported by the Intel ASL 8638193267Sjkimcompiler): ToDecimalString, ToHexString, ToString, ToInteger, and 8639126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 8640126372SnjlAML parser, debugger, and disassembler. 8641102550Siwasaki 8642114237SnjlThe internal memory tracking mechanism (leak detection code) has 8643114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 8644114237Snjlblock is no longer allocated for each memory allocation), and now 8645114237Snjlsupports all of the internal object caches. 8646102550Siwasaki 8647114237SnjlThe data structures and code for the internal object caches have 8648114237Snjlbeen coelesced and optimized so that there is a single cache and 8649114237Snjlmemory list data structure and a single group of functions that 8650114237Snjlimplement generic cache management. This has reduced the code 8651114237Snjlsize in both the debug and release versions of the subsystem. 8652102550Siwasaki 8653193267SjkimThe DEBUG_PRINT macro(s) have been optimized for size and replaced 8654126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 8655126372Snjldifferent, because it generates a single call to an internal 8656126372Snjlfunction. This results in a savings of about 90 bytes per 8657193267Sjkiminvocation, resulting in an overall code and data savings of about 8658126372Snjl16% in the debug version of the subsystem. 8659102550Siwasaki 8660102550Siwasaki Linux: 8661102550Siwasaki 8662114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 8663114237Snjlmachines. 8664102550Siwasaki 8665102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 8666102550Siwasaki 8667102550SiwasakiFurther tweaked source code Linuxization. 8668102550Siwasaki 8669102550SiwasakiOther minor fixes. 8670102550Siwasaki 8671102550Siwasaki ASL Compiler: 8672102550Siwasaki 8673114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 8674102550Siwasaki 8675114237SnjlFixed a problem where the optional length parameter for the ACPI 8676114237Snjl2.0 ToString operator. 8677102550Siwasaki 8678114237SnjlFixed multiple extraneous error messages when a syntax error is 8679114237Snjldetected within the declaration line of a control method. 8680102550Siwasaki 8681102550Siwasaki ---------------------------------------- 8682102550SiwasakiSummary of changes for this label: 07_17_01 8683102550Siwasaki 8684102550SiwasakiACPI CA Core Subsystem: 8685102550Siwasaki 8686104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 8687193267SjkimACPI table via the ACPI signature. The interface can be called at 8688126372Snjlany time during kernel initialization, even before the kernel 8689193267Sjkimvirtual memory manager is initialized and paging is enabled. This 8690126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 8691126372Snjlbefore the ACPI CA subsystem is initialized. 8692102550Siwasaki 8693104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 8694104470Siwasakicould be resolved to the incorrect address under the following 8695114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 8696114237Snjlparent operation region is not defined on a DWORD boundary. 8697102550Siwasaki 8698114237SnjlFixed a problem where the interpreter is not being locked during 8699114237Snjlnamespace initialization (during execution of the _INI control 8700114237Snjlmethods), causing an error when an attempt is made to release it 8701114237Snjllater. 8702102550Siwasaki 8703104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 8704114237Snjlongoing throughout the rest of this year. In this label, The Mod 8705114237Snjloperator is implemented. 8706102550Siwasaki 8707102550SiwasakiAdded a new data type to contain full PCI addresses named 8708193267SjkimACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device, 8709126372Snjland Function values. 8710102550Siwasaki 8711102550Siwasaki Linux: 8712102550Siwasaki 8713102550SiwasakiEnhanced the Linux version of the source code to change most 8714102550Siwasakicapitalized ACPI type names to lowercase. For example, all 8715114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 8716114237Snjlresult in a large diff, but the change is strictly cosmetic and 8717114237Snjlaligns the CA code closer to the Linux coding standard. 8718102550Siwasaki 8719102550SiwasakiOSL Interfaces: 8720102550Siwasaki 8721193267SjkimThe interfaces to the PCI configuration space have been changed to 8722193267Sjkimadd the PCI Segment number and to split the single 32-bit combined 8723126372SnjlDeviceFunction field into two 16-bit fields. This was 8724114237Snjlaccomplished by moving the four values that define an address in 8725114237SnjlPCI configuration space (segment, bus, device, and function) to 8726114237Snjlthe new ACPI_PCI_ID structure. 8727102550Siwasaki 8728104470SiwasakiThe changes to the PCI configuration space interfaces led to a 8729104470Siwasakireexamination of the complete set of address space access 8730114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 8731114237Snjlinterfaces have proven difficult to maintain (any small change 8732193267Sjkimmust be propagated across at least 6 interfaces) and do not easily 8733193267Sjkimallow for future expansion to 64 bits if necessary. Also, on some 8734126372Snjlsystems, it would not be appropriate to demultiplex the access 8735126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 8736114237Snjlcorresponding native OS interfaces contain a similar access width 8737114237Snjlparameter. For these reasons, the 18 address space interfaces 8738114237Snjlhave been replaced by these 6 new ones: 8739102550Siwasaki 8740102550SiwasakiAcpiOsReadPciConfiguration 8741102550SiwasakiAcpiOsWritePciConfiguration 8742102550SiwasakiAcpiOsReadMemory 8743102550SiwasakiAcpiOsWriteMemory 8744102550SiwasakiAcpiOsReadPort 8745102550SiwasakiAcpiOsWritePort 8746102550Siwasaki 8747114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 8748114237Snjlto perform the platform and/or OS-specific actions necessary to 8749114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 8750114237Snjlinterface will simply call down to the CA core to perform the low- 8751114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 8752114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 8753167802Sjkim 8754114237Snjlremain OS and platform independent. 8755102550Siwasaki 8756104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 8757114237Snjl"function code and pointer" interface for various miscellaneous 8758114237Snjlsignals and notifications that must be made to the host OS. The 8759114237Snjlfirst such signals are intended to support the ASL Fatal and 8760114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 8761114237Snjlinterface has been obsoleted. 8762102550Siwasaki 8763102550SiwasakiThe definition of the AcpiFormatException interface has been 8764114237Snjlchanged to simplify its use. The caller no longer must supply a 8765114237Snjlbuffer to the call; A pointer to a const string is now returned 8766114237Snjldirectly. This allows the call to be easily used in printf 8767114237Snjlstatements, etc. since the caller does not have to manage a local 8768114237Snjlbuffer. 8769102550Siwasaki 8770114237Snjl 8771102550Siwasaki ASL Compiler, Version X2025: 8772102550Siwasaki 8773114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 8774114237Snjland are fully functional. They will work with all ACPI 1.0 8775193267Sjkiminterpreters, since the operators are simply translated to If/Else 8776126372Snjlpairs. 8777102550Siwasaki 8778104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 8779104470Siwasakiwith 1.0 interpreters, for the same reason. 8780102550Siwasaki 8781114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 8782114237Snjlpackages have a separate opcode, and their size is determined by 8783114237Snjlthe interpreter at run-time. 8784102550Siwasaki 8785193267SjkimDocumentation The ACPI CA Programmer Reference has been updated to 8786126372Snjlreflect the new interfaces and changes to existing interfaces. 8787102550Siwasaki 8788102550Siwasaki ------------------------------------------ 8789102550SiwasakiSummary of changes for this label: 06_15_01 8790102550Siwasaki 8791102550Siwasaki ACPI CA Core Subsystem: 8792102550Siwasaki 8793102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 8794114237Snjlobject would get its byte address inadvertently rounded down to 8795114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 8796102550Siwasaki 8797102550Siwasaki ASL Compiler, version X2024: 8798102550Siwasaki 8799114237SnjlFixed a problem where the Switch() operator would either fault or 8800114237Snjlhang the compiler. Note however, that the AML code for this ACPI 8801114237Snjl2.0 operator is not yet implemented. 8802102550Siwasaki 8803114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 8804114237Snjltimings. 8805102550Siwasaki 8806114237SnjlImplementation of the CreateField operator automatically converts 8807114237Snjla reference to a named field within a resource descriptor from a 8808114237Snjlbyte offset to a bit offset if required. 8809102550Siwasaki 8810102550SiwasakiAdded some missing named fields from the resource descriptor 8811193267Sjkimsupport. These are the names that are automatically created by the 8812126372Snjlcompiler to reference fields within a descriptor. They are only 8813126372Snjlvalid at compile time and are not passed through to the AML 8814114237Snjlinterpreter. 8815102550Siwasaki 8816104470SiwasakiResource descriptor named fields are now typed as Integers and 8817104470Siwasakisubject to compile-time typechecking when used in expressions. 8818102550Siwasaki 8819102550Siwasaki ------------------------------------------ 8820102550SiwasakiSummary of changes for this label: 05_18_01 8821102550Siwasaki 8822102550Siwasaki ACPI CA Core Subsystem: 8823102550Siwasaki 8824114237SnjlFixed a couple of problems in the Field support code where bits 8825193267Sjkimfrom adjacent fields could be returned along with the proper field 8826126372Snjlbits. Restructured the field support code to improve performance, 8827126372Snjlreadability and maintainability. 8828102550Siwasaki 8829114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 8830114237Snjlinto the output, saving hundreds of copies of procedure name 8831114237Snjlstrings within the source, shrinking the memory footprint of the 8832114237Snjldebug version of the core subsystem. 8833102550Siwasaki 8834102550Siwasaki Source Code Structure: 8835102550Siwasaki 8836104470SiwasakiThe source code directory tree was restructured to reflect the 8837114237Snjlcurrent organization of the component architecture. Some files 8838114237Snjland directories have been moved and/or renamed. 8839102550Siwasaki 8840102550Siwasaki Linux: 8841102550Siwasaki 8842102550SiwasakiFixed leaking kacpidpc processes. 8843102550Siwasaki 8844102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 8845102550Siwasakiopened. 8846102550Siwasaki 8847102550Siwasaki ASL Compiler, version X2020: 8848102550Siwasaki 8849114237SnjlMemory allocation performance enhancement - over 24X compile time 8850114237Snjlimprovement on large ASL files. Parse nodes and namestring 8851114237Snjlbuffers are now allocated from a large internal compiler buffer. 8852102550Siwasaki 8853102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 8854102550Siwasakispecified 8855102550Siwasaki 8856193267SjkimThe "-d" debug output option now sends all output to the .DBG file 8857126372Snjlinstead of the console. 8858102550Siwasaki 8859102550Siwasaki"External" second parameter is now optional 8860102550Siwasaki 8861102550Siwasaki"ElseIf" syntax now properly allows the predicate 8862102550Siwasaki 8863102550SiwasakiLast operand to "Load" now recognized as a Target operand 8864102550Siwasaki 8865102550SiwasakiDebug object can now be used anywhere as a normal object. 8866102550Siwasaki 8867102550SiwasakiResourceTemplate now returns an object of type BUFFER 8868102550Siwasaki 8869102550SiwasakiEISAID now returns an object of type INTEGER 8870102550Siwasaki 8871102550Siwasaki"Index" now works with a STRING operand 8872102550Siwasaki 8873102550Siwasaki"LoadTable" now accepts optional parameters 8874102550Siwasaki 8875102550Siwasaki"ToString" length parameter is now optional 8876102550Siwasaki 8877102550Siwasaki"Interrupt (ResourceType," parse error fixed. 8878102550Siwasaki 8879104470Siwasaki"Register" with a user-defined region space parse error fixed 8880102550Siwasaki 8881114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 8882114237Snjlfixed 8883102550Siwasaki 8884102550Siwasaki"Revision" is now an object of type INTEGER. 8885102550Siwasaki 8886102550Siwasaki 8887102550Siwasaki 8888102550Siwasaki------------------------------------------ 8889102550SiwasakiSummary of changes for this label: 05_02_01 8890102550Siwasaki 8891102550SiwasakiLinux: 8892102550Siwasaki 8893102550Siwasaki/proc/acpi/event now blocks properly. 8894102550Siwasaki 8895102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 8896102550Siwasaki/proc/acpi/dsdt. 8897102550Siwasaki 8898102550Siwasaki ACPI CA Core Subsystem: 8899102550Siwasaki 8900193267SjkimFixed a problem introduced in the previous label where some of the 8901126372Snjl"small" resource descriptor types were not recognized. 8902102550Siwasaki 8903193267SjkimImproved error messages for the case where an ASL Field is outside 8904126372Snjlthe range of the parent operation region. 8905102550Siwasaki 8906102550Siwasaki ASL Compiler, version X2018: 8907102550Siwasaki 8908167802Sjkim 8909193267SjkimAdded error detection for ASL Fields that extend beyond the length 8910126372Snjlof the parent operation region (only if the length of the region 8911126372Snjlis known at compile time.) This includes fields that have a 8912126372Snjlminimum access width that is smaller than the parent region, and 8913126372Snjlindividual field units that are partially or entirely beyond the 8914126372Snjlextent of the parent. 8915102550Siwasaki 8916102550Siwasaki 8917102550Siwasaki 8918102550Siwasaki------------------------------------------ 8919102550SiwasakiSummary of changes for this label: 04_27_01 8920102550Siwasaki 8921102550Siwasaki ACPI CA Core Subsystem: 8922102550Siwasaki 8923193267SjkimFixed a problem where the namespace mutex could be released at the 8924126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 8925102550Siwasaki 8926104470SiwasakiAdded optional thread ID output for debug traces, to simplify 8927114237Snjldebugging of multiple threads. Added context switch notification 8928114237Snjlwhen the debug code realizes that a different thread is now 8929114237Snjlexecuting ACPI code. 8930102550Siwasaki 8931114237SnjlSome additional external data types have been prefixed with the 8932114237Snjlstring "ACPI_" for consistency. This may effect existing code. 8933193267SjkimThe data types affected are the external callback typedefs - e.g., 8934167802Sjkim 8935126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 8936102550Siwasaki 8937102550Siwasaki Linux: 8938102550Siwasaki 8939102550SiwasakiFixed an issue with the OSL semaphore implementation where a 8940102550Siwasakithread was waking up with an error from receiving a SIGCHLD 8941102550Siwasakisignal. 8942102550Siwasaki 8943114237SnjlLinux version of ACPI CA now uses the system C library for string 8944114237Snjlmanipulation routines instead of a local implementation. 8945102550Siwasaki 8946102550SiwasakiCleaned up comments and removed TBDs. 8947102550Siwasaki 8948102550Siwasaki ASL Compiler, version X2017: 8949102550Siwasaki 8950102550SiwasakiEnhanced error detection and reporting for all file I/O 8951102550Siwasakioperations. 8952102550Siwasaki 8953102550Siwasaki Documentation: 8954102550Siwasaki 8955102550SiwasakiProgrammer Reference updated to version 1.06. 8956102550Siwasaki 8957102550Siwasaki 8958102550Siwasaki 8959102550Siwasaki------------------------------------------ 8960102550SiwasakiSummary of changes for this label: 04_13_01 8961102550Siwasaki 8962102550Siwasaki ACPI CA Core Subsystem: 8963102550Siwasaki 8964102550SiwasakiRestructured support for BufferFields and RegionFields. 8965104470SiwasakiBankFields support is now fully operational. All known 32-bit 8966114237Snjllimitations on field sizes have been removed. Both BufferFields 8967114237Snjland (Operation) RegionFields are now supported by the same field 8968114237Snjlmanagement code. 8969102550Siwasaki 8970114237SnjlResource support now supports QWORD address and IO resources. The 8971114237Snjl16/32/64 bit address structures and the Extended IRQ structure 8972114237Snjlhave been changed to properly handle Source Resource strings. 8973102550Siwasaki 8974114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 8975193267Sjkimcondition internally and must never be returned by AcpiOsThreadId. 8976126372SnjlThis reserved value was changed from 0 since Unix systems allow a 8977126372Snjlthread ID of 0. 8978102550Siwasaki 8979102550SiwasakiLinux: 8980102550Siwasaki 8981102550SiwasakiDriver code reorganized to enhance portability 8982102550Siwasaki 8983102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 8984102550Siwasaki 8985102550SiwasakiFixed the EC driver to honor _GLK. 8986102550Siwasaki 8987102550SiwasakiASL Compiler, version X2016: 8988102550Siwasaki 8989114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 8990114237Snjladdress space was set to 0, not 0x7f as it should be. 8991102550Siwasaki 8992102550Siwasaki ------------------------------------------ 8993102550SiwasakiSummary of changes for this label: 03_13_01 8994102550Siwasaki 8995102550Siwasaki ACPI CA Core Subsystem: 8996102550Siwasaki 8997104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 8998104470Siwasakipresent. 8999102550Siwasaki 9000193267SjkimNotify handler fix - notifies are deferred until the parent method 9001126372Snjlcompletes execution. This fixes the "mutex already acquired" 9002126372Snjlissue seen occasionally. 9003102550Siwasaki 9004104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 9005114237Snjlfound to cause compatibility problems with existing ASL/AML. The 9006114237Snjlconvert "result-to-target-type" implementation has been removed 9007114237Snjlfor stores to method Args and Locals. Source operand conversion 9008114237Snjlis still fully implemented. Possible changes to ACPI 2.0 9009114237Snjlspecification pending. 9010102550Siwasaki 9011104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 9012104470Siwasakilength. 9013102550Siwasaki 9014102550SiwasakiFix for compiler warnings for 64-bit compiles. 9015102550Siwasaki 9016102550Siwasaki Linux: 9017102550Siwasaki 9018102550Siwasaki/proc output aligned for easier parsing. 9019102550Siwasaki 9020102550SiwasakiRelease-version compile problem fixed. 9021102550Siwasaki 9022104470SiwasakiNew kernel configuration options documented in Configure.help. 9023102550Siwasaki 9024102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 9025102550Siwasakicontext" message. 9026102550Siwasaki 9027102550Siwasaki OSPM: 9028102550Siwasaki 9029102550SiwasakiPower resource driver integrated with bus manager. 9030102550Siwasaki 9031102550SiwasakiFixed kernel fault during active cooling for thermal zones. 9032102550Siwasaki 9033102550SiwasakiSource Code: 9034102550Siwasaki 9035102550SiwasakiThe source code tree has been restructured. 9036102550Siwasaki 9037102550Siwasaki 9038102550Siwasaki 9039102550Siwasaki------------------------------------------ 9040102550SiwasakiSummary of changes for this label: 03_02_01 9041102550Siwasaki 9042102550Siwasaki Linux OS Services Layer (OSL): 9043102550Siwasaki 9044102550SiwasakiMajor revision of all Linux-specific code. 9045102550Siwasaki 9046102550SiwasakiModularized all ACPI-specific drivers. 9047102550Siwasaki 9048102550SiwasakiAdded new thermal zone and power resource drivers. 9049102550Siwasaki 9050114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 9051102550Siwasaki 9052102550SiwasakiNew kernel configuration options. 9053102550Siwasaki 9054102550Siwasaki Linux known issues: 9055102550Siwasaki 9056114237SnjlNew kernel configuration options not documented in Configure.help 9057114237Snjlyet. 9058102550Siwasaki 9059114237Snjl 9060102550SiwasakiModule dependencies not currently implemented. If used, they 9061102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 9062102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 9063102550Siwasaki 9064102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 9065102550Siwasaki 9066102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 9067102550Siwasaki 9068104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 9069104470Siwasakimessage. 9070102550Siwasaki 9071104470SiwasakiSome systems may fail with "execution mutex already acquired" 9072104470Siwasakimessage. 9073102550Siwasaki 9074102550Siwasaki ACPI CA Core Subsystem: 9075102550Siwasaki 9076114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 9077193267Sjkimfor the deadlock detection code. Defined to return a non-zero, 32- 9078126372Snjlbit thread ID for the currently executing thread. May be a non- 9079126372Snjlzero constant integer on single-thread systems. 9080102550Siwasaki 9081193267SjkimImplemented deadlock detection for internal subsystem mutexes. We 9082126372Snjlmay add conditional compilation for this code (debug only) later. 9083102550Siwasaki 9084104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 9085114237Snjlincludes multiple acquires/releases by owner and support for the 9086167802Sjkim 9087114237SnjlMutex SyncLevel parameter. 9088102550Siwasaki 9089102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 9090104470SiwasakiMutexes that have been acquired but not released when a thread 9091114237Snjlexits the interpreter. This forces conformance to the ACPI spec 9092114237Snjl("All mutexes must be released when an invocation exits") and 9093114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 9094114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 9095114237Snjlcontinues to misbehave (which it will). 9096102550Siwasaki 9097104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 9098104470Siwasakisupport. 9099102550Siwasaki 9100104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 9101114237Snjlspec does in fact allow recursive method calls.) The number of 9102114237Snjlrecursive calls is subject to the restrictions imposed by the 9103114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 9104104470Siwasakiparameter. 9105102550Siwasaki 9106102550SiwasakiImplemented support for the SyncLevel parameter for control 9107102550Siwasakimethods (ACPI 2.0 feature) 9108102550Siwasaki 9109114237SnjlFixed a deadlock problem when multiple threads attempted to use 9110114237Snjlthe interpreter. 9111102550Siwasaki 9112102550SiwasakiFixed a problem where the string length of a String package 9113102550Siwasakielement was not always set in a package returned from 9114102550SiwasakiAcpiEvaluateObject. 9115102550Siwasaki 9116114237SnjlFixed a problem where the length of a String package element was 9117114237Snjlnot always included in the length of the overall package returned 9118114237Snjlfrom AcpiEvaluateObject. 9119102550Siwasaki 9120102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 9121102550Siwasakimanager. This manager keeps a list of all outstanding 9122193267Sjkimallocations, and can therefore detect memory leaks and attempts to 9123126372Snjlfree memory blocks more than once. Useful for code such as the 9124114237Snjlpower manager, etc. May not be appropriate for device drivers. 9125114237SnjlPerformance with the debug code enabled is slow. 9126102550Siwasaki 9127102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 9128102550Siwasaki 9129102550Siwasaki ASL Compiler Version X2015: 9130102550Siwasaki 9131102550SiwasakiIntegrated changes to allow the compiler to be generated on 9132102550Siwasakimultiple platforms. 9133102550Siwasaki 9134102550SiwasakiLinux makefile added to generate the compiler on Linux 9135102550Siwasaki 9136102550Siwasaki Source Code: 9137102550Siwasaki 9138102550SiwasakiAll platform-specific headers have been moved to their own 9139102550Siwasakisubdirectory, Include/Platform. 9140102550Siwasaki 9141102550SiwasakiNew source file added, Interpreter/ammutex.c 9142102550Siwasaki 9143102550SiwasakiNew header file, Include/acstruct.h 9144102550Siwasaki 9145102550Siwasaki Documentation: 9146102550Siwasaki 9147114237SnjlThe programmer reference has been updated for the following new 9148114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 9149102550Siwasaki 9150102550Siwasaki ------------------------------------------ 9151102550SiwasakiSummary of changes for this label: 02_08_01 9152102550Siwasaki 9153102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 9154193267Sjkimincorrectly returned if the return resource buffer was larger than 9155126372Snjlthe actual data (in the resource interfaces). 9156102550Siwasaki 9157114237SnjlReferences to named objects within packages are resolved to the 9158167802Sjkim 9159114237Snjlfull pathname string before packages are returned directly (via 9160114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 9161114237Snjlinterfaces. 9162102550Siwasaki 9163102550SiwasakiLinux OS Services Layer (OSL): 9164102550Siwasaki 9165102550SiwasakiImproved /proc battery interface. 9166102550Siwasaki 9167102550Siwasaki 9168104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 9169102550Siwasaki 9170102550SiwasakiASL Compiler Version X2014: 9171102550Siwasaki 9172114237SnjlAll defined method arguments can now be used as local variables, 9173114237Snjlincluding the ones that are not actually passed in as parameters. 9174114237SnjlThe compiler tracks initialization of the arguments and issues an 9175114237Snjlexception if they are used without prior assignment (just like 9176114237Snjllocals). 9177102550Siwasaki 9178193267SjkimThe -o option now specifies a filename prefix that is used for all 9179126372Snjloutput files, including the AML output file. Otherwise, the 9180114237Snjldefault behavior is as follows: 1) the AML goes to the file 9181114237Snjlspecified in the DSDT. 2) all other output files use the input 9182114237Snjlsource filename as the base. 9183102550Siwasaki 9184102550Siwasaki ------------------------------------------ 9185102550SiwasakiSummary of changes for this label: 01_25_01 9186102550Siwasaki 9187114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 9188114237Snjlstore support within the interpreter. This includes support for 9189114237Snjlthe Store operator as well as any ASL operators that include a 9190114237Snjltarget operand. 9191102550Siwasaki 9192102550SiwasakiPartially implemented support for Implicit Result-to-Target 9193114237Snjlconversion. This is when a result object is converted on the fly 9194114237Snjlto the type of an existing target object. Completion of this 9195114237Snjlsupport is pending further analysis of the ACPI specification 9196114237Snjlconcerning this matter. 9197102550Siwasaki 9198114237SnjlCPU-specific code has been removed from the subsystem (hardware 9199114237Snjldirectory). 9200102550Siwasaki 9201102550SiwasakiNew Power Management Timer functions added 9202102550Siwasaki 9203114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 9204114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 9205102550Siwasaki 9206102550SiwasakiFixed C2 and C3 latency calculations. 9207102550Siwasaki 9208102550Siwasaki 9209114237SnjlWe no longer use the compilation date for the version message on 9210193267Sjkiminitialization, but retrieve the version from AcpiGetSystemInfo(). 9211102550Siwasaki 9212102550SiwasakiIncorporated for fix Sony VAIO machines. 9213102550Siwasaki 9214104470SiwasakiDocumentation: The Programmer Reference has been updated and 9215104470Siwasakireformatted. 9216102550Siwasaki 9217102550Siwasaki 9218102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 9219102550Siwasakinumbering and error reporting could get out of sync in the 9220102550Siwasakipresence of multiple include files. 9221102550Siwasaki 9222102550Siwasaki ------------------------------------------ 9223102550SiwasakiSummary of changes for this label: 01_15_01 9224102550Siwasaki 9225102550SiwasakiCore ACPI CA Subsystem: 9226102550Siwasaki 9227114237SnjlImplemented support for type conversions in the execution of the 9228114237SnjlASL Concatenate operator (The second operand is converted to 9229114237Snjlmatch the type of the first operand before concatenation.) 9230102550Siwasaki 9231102550SiwasakiSupport for implicit source operand conversion is partially 9232114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 9233114237SnjlString are freely interchangeable for most ASL operators and are 9234114237Snjlconverted by the interpreter on the fly as required. Implicit 9235114237SnjlTarget operand conversion (where the result is converted to the 9236114237Snjltarget type before storing) is not yet implemented. 9237102550Siwasaki 9238102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 9239102550Siwasaki 9240193267SjkimProblem fixed where a field read on an aligned field could cause a 9241126372Snjlread past the end of the field. 9242102550Siwasaki 9243114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 9244114237Snjldoes not return a value, but the caller expects one. (The ASL 9245114237Snjlcompiler flags this as a warning.) 9246102550Siwasaki 9247102550SiwasakiASL Compiler: 9248102550Siwasaki 9249102550SiwasakiVersion X2011: 9250102550Siwasaki1. Static typechecking of all operands is implemented. This 9251193267Sjkimprevents the use of invalid objects (such as using a Package where 9252126372Snjlan Integer is required) at compile time instead of at interpreter 9253126372Snjlrun-time. 9254114237Snjl2. The ASL source line is printed with ALL errors and warnings. 9255102550Siwasaki3. Bug fix for source EOF without final linefeed. 9256193267Sjkim4. Debug option is split into a parse trace and a namespace trace. 9257102550Siwasaki5. Namespace output option (-n) includes initial values for 9258102550Siwasakiintegers and strings. 9259102550Siwasaki6. Parse-only option added for quick syntax checking. 9260102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 9261102550Siwasaki 9262102550SiwasakiVersion X2012: 9263102550Siwasaki1. Relaxed typechecking to allow interchangeability between 9264114237Snjlstrings, integers, and buffers. These types are now converted by 9265114237Snjlthe interpreter at runtime. 9266114237Snjl2. Compiler reports time taken by each internal subsystem in the 9267114237Snjldebug output file. 9268102550Siwasaki 9269102550Siwasaki 9270102550Siwasaki ------------------------------------------ 9271102550SiwasakiSummary of changes for this label: 12_14_00 9272102550Siwasaki 9273102550SiwasakiASL Compiler: 9274102550Siwasaki 9275104470SiwasakiThis is the first official release of the compiler. Since the 9276104470Siwasakicompiler requires elements of the Core Subsystem, this label 9277104470Siwasakisynchronizes everything. 9278102550Siwasaki 9279102550Siwasaki------------------------------------------ 9280102550SiwasakiSummary of changes for this label: 12_08_00 9281102550Siwasaki 9282102550Siwasaki 9283114237SnjlFixed a problem where named references within the ASL definition 9284114237Snjlof both OperationRegions and CreateXXXFields did not work 9285114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9286114237Snjlinitialization of the region/field. This is similar (but not 9287114237Snjlrelated internally) to the problem that was fixed in the last 9288114237Snjllabel. 9289114237Snjl 9290102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 9291102550Siwasakifunctions ToBCD and FromBCD. 9292102550Siwasaki 9293102550SiwasakiUpdated all legal headers to include "2000" in the copyright 9294102550Siwasakiyears. 9295102550Siwasaki 9296102550Siwasaki ------------------------------------------ 9297102550SiwasakiSummary of changes for this label: 12_01_00 9298102550Siwasaki 9299193267SjkimFixed a problem where method invocations within the ASL definition 9300126372Snjlof both OperationRegions and CreateXXXFields did not work 9301126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9302114237Snjlinitialization of the region/field: 9303102550Siwasaki 9304114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 9305114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 9306114237Snjl(0x3005) 9307102550Siwasaki 9308102550SiwasakiFixed a problem where operators with more than one nested 9309104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 9310114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 9311114237Snjlproblem that has gone unnoticed until now. 9312102550Siwasaki 9313102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 9314102550Siwasaki 9315114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 9316114237Snjlprevious build (The prefix part of a relative path was handled 9317114237Snjlincorrectly). 9318102550Siwasaki 9319114237SnjlFixed a problem where Operation Region initialization failed if 9320114237Snjlthe operation region name was a "namepath" instead of a simple 9321114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 9322102550Siwasaki 9323114237SnjlFixed a problem where an assignment to a local variable via the 9324114237Snjlindirect RefOf mechanism only worked for the first such 9325102550Siwasakiassignment. Subsequent assignments were ignored. 9326102550Siwasaki 9327102550Siwasaki ------------------------------------------ 9328102550SiwasakiSummary of changes for this label: 11_15_00 9329102550Siwasaki 9330193267SjkimACPI 2.0 table support with backwards support for ACPI 1.0 and the 9331193267Sjkim0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables, 9332126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 9333126372Snjlgrammar terms at this time. 9334102550Siwasaki 9335193267SjkimAll ACPI hardware access is via the GAS structures in the ACPI 2.0 9336126372SnjlFADT. 9337102550Siwasaki 9338193267SjkimAll physical memory addresses across all platforms are now 64 bits 9339126372Snjlwide. Logical address width remains dependent on the platform 9340126372Snjl(i.e., "void *"). 9341102550Siwasaki 9342114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 9343102550Siwasaki 9344114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 9345114237Snjl2.0 specification. 9346102550Siwasaki 9347104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 9348104470Siwasakirevision number less than 2 use 32-bit integers only. 9349102550Siwasaki 9350114237SnjlFixed a problem where the evaluation of OpRegion operands did not 9351114237Snjlalways resolve them to numbers properly. 9352102550Siwasaki 9353102550Siwasaki------------------------------------------ 9354102550SiwasakiSummary of changes for this label: 10_20_00 9355102550Siwasaki 9356114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 9357114237SnjlCBN_ OpRegions when the _STA returns 0x8. 9358102550Siwasaki 9359104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 9360104470Siwasakivalues before a package object is returned 9361102550Siwasaki 9362104470SiwasakiFix for method call as predicate to if/while construct causing 9363104470Siwasakiincorrect if/while behavior 9364102550Siwasaki 9365114237SnjlFix for Else block package lengths sometimes calculated wrong (if 9366114237Snjlblock > 63 bytes) 9367102550Siwasaki 9368102550SiwasakiFix for Processor object length field, was always zero 9369102550Siwasaki 9370102550SiwasakiTable load abort if FACP sanity check fails 9371102550Siwasaki 9372102550SiwasakiFix for problem with Scope(name) if name already exists 9373102550Siwasaki 9374102550SiwasakiWarning emitted if a named object referenced cannot be found 9375102550Siwasaki(resolved) during method execution. 9376102550Siwasaki 9377102550Siwasaki 9378102550Siwasaki 9379102550Siwasaki 9380102550Siwasaki 9381102550Siwasaki------------------------------------------ 9382102550SiwasakiSummary of changes for this label: 9_29_00 9383102550Siwasaki 9384114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 9385114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 9386114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 9387114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 9388114237SnjlAcpiLoadTables 9389102550Siwasaki 9390193267SjkimNote: These interface changes require changes to all existing OSDs 9391102550Siwasaki 9392114237SnjlThe PCI_Config default address space handler is always installed 9393114237Snjlat the root namespace object. 9394102550Siwasaki 9395102550Siwasaki------------------------------------------- 9396102550SiwasakiSummary of changes for this label: 09_15_00 9397102550Siwasaki 9398102550SiwasakiThe new initialization architecture is implemented. New 9399114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 9400114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 9401167802Sjkim 9402114237Snjl(Namespace is automatically loaded when a table is loaded) 9403102550Siwasaki 9404193267SjkimThe ACPI_OPERAND_OBJECT has been optimized to shrink its size from 9405126372Snjl52 bytes to 32 bytes. There is usually one of these for every 9406126372Snjlnamespace object, so the memory savings is significant. 9407102550Siwasaki 9408114237SnjlImplemented just-in-time evaluation of the CreateField operators. 9409102550Siwasaki 9410102550SiwasakiBug fixes for IA-64 support have been integrated. 9411102550Siwasaki 9412102550SiwasakiAdditional code review comments have been implemented 9413102550Siwasaki 9414193267SjkimThe so-called "third pass parse" has been replaced by a final walk 9415193267Sjkimthrough the namespace to initialize all operation regions (address 9416126372Snjlspaces) and fields that have not yet been initialized during the 9417126372Snjlexecution of the various _INI and REG methods. 9418102550Siwasaki 9419102550SiwasakiNew file - namespace/nsinit.c 9420102550Siwasaki 9421102550Siwasaki------------------------------------------- 9422102550SiwasakiSummary of changes for this label: 09_01_00 9423102550Siwasaki 9424193267SjkimNamespace manager data structures have been reworked to change the 9425126372Snjlprimary object from a table to a single object. This has 9426193267Sjkimresulted in dynamic memory savings of 3X within the namespace and 9427126372Snjl2X overall in the ACPI CA subsystem. 9428102550Siwasaki 9429102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 9430102550Siwasakiinadvertently left commented out. 9431102550Siwasaki 9432114237SnjlReduced the warning count when generating the source with the GCC 9433114237Snjlcompiler. 9434102550Siwasaki 9435102550SiwasakiRevision numbers added to each module header showing the 9436104470SiwasakiSourceSafe version of the file. Please refer to this version 9437114237Snjlnumber when giving us feedback or comments on individual modules. 9438102550Siwasaki 9439114237SnjlThe main object types within the subsystem have been renamed to 9440114237Snjlclarify their purpose: 9441102550Siwasaki 9442102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 9443102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 9444102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 9445102550Siwasaki 9446114237SnjlNOTE: no changes to the initialization sequence are included in 9447114237Snjlthis label. 9448102550Siwasaki 9449102550Siwasaki------------------------------------------- 9450102550SiwasakiSummary of changes for this label: 08_23_00 9451102550Siwasaki 9452102550SiwasakiFixed problem where TerminateControlMethod was being called 9453102550Siwasakimultiple times per method 9454102550Siwasaki 9455193267SjkimFixed debugger problem where single stepping caused a semaphore to 9456126372Snjlbe oversignalled 9457102550Siwasaki 9458104470SiwasakiImproved performance through additional parse object caching - 9459104470Siwasakiadded ACPI_EXTENDED_OP type 9460102550Siwasaki 9461102550Siwasaki------------------------------------------- 9462102550SiwasakiSummary of changes for this label: 08_10_00 9463102550Siwasaki 9464102550SiwasakiParser/Interpreter integration: Eliminated the creation of 9465102550Siwasakicomplete parse trees for ACPI tables and control methods. 9466114237SnjlInstead, parse subtrees are created and then deleted as soon as 9467193267Sjkimthey are processed (Either entered into the namespace or executed 9468126372Snjlby the interpreter). This reduces the use of dynamic kernel 9469126372Snjlmemory significantly. (about 10X) 9470102550Siwasaki 9471114237SnjlException codes broken into classes and renumbered. Be sure to 9472114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 9473114237Snjlhave to renumber the codes again now that they are split into 9474114237Snjlclasses (environment, programmer, AML code, ACPI table, and 9475114237Snjlinternal). 9476102550Siwasaki 9477104470SiwasakiFixed some additional alignment issues in the Resource Manager 9478104470Siwasakisubcomponent 9479102550Siwasaki 9480114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 9481114237Snjlseveral places where mutexes/semaphores were being unlocked 9482114237Snjlwithout a corresponding lock operation. There are no known 9483114237Snjlsemaphore or mutex "leaks" at this time. 9484102550Siwasaki 9485114237SnjlFixed the case where an ASL Return operator is used to return an 9486114237Snjlunnamed package. 9487102550Siwasaki 9488102550Siwasaki------------------------------------------- 9489102550SiwasakiSummary of changes for this label: 07_28_00 9490102550Siwasaki 9491102550SiwasakiFixed a problem with the way addresses were calculated in 9492114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 9493114237Snjlmanifested itself when a Field was created with WordAccess or 9494193267SjkimDwordAccess, but the field unit defined within the Field was less 9495167802Sjkim 9496126372Snjlthan a Word or Dword. 9497102550Siwasaki 9498102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 9499104470Siwasakioperands off of the operand stack to display information. The 9500114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 9501114237Snjlaccessing an operand stack with two or more operands. 9502102550Siwasaki 9503114237SnjlFixed a problem with the PCI configuration space handlers where 9504114237Snjlcontext was getting confused between accesses. This required a 9505114237Snjlchange to the generic address space handler and address space 9506193267Sjkimsetup definitions. Handlers now get both a global handler context 9507126372Snjl(this is the one passed in by the user when executing 9508114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 9509114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 9510114237Snjl_BBN values associated with a specific region). The generic 9511114237Snjlfunction definitions have changed to the following: 9512102550Siwasaki 9513114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 9514114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 9515104470Siwasaki*HandlerContext, // This used to be void *Context void 9516102550Siwasaki*RegionContext); // This is an additional parameter 9517102550Siwasaki 9518102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 9519102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 9520102550Siwasaki**RegionContext); // This used to be **ReturnContext 9521102550Siwasaki 9522102550Siwasaki------------------------------------------- 9523102550SiwasakiSummary of changes for this label: 07_21_00 9524102550Siwasaki 9525102550SiwasakiMajor file consolidation and rename. All files within the 9526193267Sjkiminterpreter have been renamed as well as most header files. This 9527126372Snjlwas done to prevent collisions with existing files in the host 9528126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 9529126372Snjlquite common. The VC project files have been updated. All 9530114237Snjlmakefiles will require modification. 9531102550Siwasaki 9532114237SnjlThe parser/interpreter integration continues in Phase 5 with the 9533114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 9534114237Snjltwice) for each table; This avoids the construction of a huge 9535114237Snjlparse tree and therefore reduces the amount of dynamic memory 9536114237Snjlrequired by the subsystem. Greater use of the parse object cache 9537114237Snjlmeans that performance is unaffected. 9538102550Siwasaki 9539102550SiwasakiMany comments from the two code reviews have been rolled in. 9540102550Siwasaki 9541102550SiwasakiThe 64-bit alignment support is complete. 9542102550Siwasaki 9543102550Siwasaki------------------------------------------- 9544102550SiwasakiSummary of changes for this label: 06_30_00 9545102550Siwasaki 9546114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 9547114237Snjlwe've added support in the source code for 80 column output 9548114237Snjldevices. The code is now mostly constrained to 80 columns or 9549114237Snjlless to support environments and editors that 1) cannot display 9550114237Snjlor print more than 80 characters on a single line, and 2) cannot 9551114237Snjldisable line wrapping. 9552102550Siwasaki 9553104470SiwasakiA major restructuring of the namespace data structure has been 9554104470Siwasakicompleted. The result is 1) cleaner and more 9555114237Snjlunderstandable/maintainable code, and 2) a significant reduction 9556114237Snjlin the dynamic memory requirement for each named ACPI object 9557114237Snjl(almost half). 9558102550Siwasaki 9559102550Siwasaki------------------------------------------- 9560102550SiwasakiSummary of changes for this label: 06_23_00 9561102550Siwasaki 9562114237SnjlLinux support has been added. In order to obtain approval to get 9563114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 9564114237Snjlquite a few changes to the base subsystem that will affect all 9565114237Snjlusers (all the changes are generic and OS- independent). The 9566114237Snjleffects of these global changes have been somewhat far reaching. 9567114237SnjlFiles have been merged and/or renamed and interfaces have been 9568114237Snjlrenamed. The major changes are described below. 9569102550Siwasaki 9570102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 9571102550Siwasakipollution/confusion within our target kernels. All OSD 9572114237Snjlinterfaces must be modified to match the new naming convention. 9573102550Siwasaki 9574193267SjkimFiles merged across the subsystem. A number of the smaller source 9575126372Snjland header files have been merged to reduce the file count and 9576126372Snjlincrease the density of the existing files. There are too many 9577126372Snjlto list here. In general, makefiles that call out individual 9578126372Snjlfiles will require rebuilding. 9579102550Siwasaki 9580104470SiwasakiInterpreter files renamed. All interpreter files now have the 9581104470Siwasakiprefix am* instead of ie* and is*. 9582102550Siwasaki 9583104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 9584114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 9585114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 9586114237Snjl"external interface" or xface or xf in the filenames.j 9587102550Siwasaki 9588102550Siwasaki 9589114237SnjlAll manifest constants have been forced to upper case (some were 9590193267Sjkimmixed case.) Also, the string "ACPI_" has been prepended to many 9591126372Snjl(not all) of the constants, typedefs, and structs. 9592102550Siwasaki 9593102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 9594102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 9595102550Siwasaki 9596102550SiwasakiAll other globals within the subsystem are now prefixed with 9597102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 9598114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 9599193267Sjkimtwo-letter abbreviation for the subcomponent remains after "Acpi" 9600126372Snjl- for example, CmCallocate became AcpiCmCallocate. 9601102550Siwasaki 9602102550SiwasakiAdded a source code translation/conversion utility. Used to 9603114237Snjlgenerate the Linux source code, it can be modified to generate 9604114237Snjlother types of source as well. Can also be used to cleanup 9605114237Snjlexisting source by removing extraneous spaces and blank lines. 9606114237SnjlFound in tools/acpisrc/* 9607102550Siwasaki 9608102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 9609102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 9610102550Siwasaki 9611114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 9612114237SnjlWhen set to one, this indicates that the caller wants to use the 9613167802Sjkim 9614114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 9615114237Snjlboth types. However, implementers of this call may want to use 9616114237Snjldifferent OS primitives depending on the type of semaphore 9617114237Snjlrequested. For example, some operating systems provide separate 9618167802Sjkim 9619193267Sjkim"mutex" and "semaphore" interfaces - where the mutex interface is 9620126372Snjlmuch faster because it doesn't have all the overhead of a full 9621126372Snjlsemaphore implementation. 9622102550Siwasaki 9623104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 9624114237Snjladdress space can block forever if it is the first access to the 9625114237Snjlspace. 9626102550Siwasaki 9627102550Siwasaki------------------------------------------- 9628102550SiwasakiSummary of changes for this label: 06_02_00 9629102550Siwasaki 9630102550SiwasakiSupport for environments that cannot handle unaligned data 9631114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 9632193267Sjkimhandler technology namely SAL/EFI and the IA-64 Linux kernel) has 9633126372Snjlbeen added (via configurable macros) in these three areas: - 9634114237SnjlTransfer of data from the raw AML byte stream is done via byte 9635193267Sjkimmoves instead of word/dword/qword moves. - External objects are 9636126372Snjlaligned within the user buffer, including package elements (sub- 9637193267Sjkimobjects). - Conversion of name strings to UINT32 Acpi Names is now 9638126372Snjldone byte-wise. 9639102550Siwasaki 9640102550SiwasakiThe Store operator was modified to mimic Microsoft's 9641102550Siwasakiimplementation when storing to a Buffer Field. 9642102550Siwasaki 9643102550SiwasakiAdded a check of the BM_STS bit before entering C3. 9644102550Siwasaki 9645114237SnjlThe methods subdirectory has been obsoleted and removed. A new 9646114237Snjlfile, cmeval.c subsumes the functionality. 9647102550Siwasaki 9648102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 9649102550Siwasakimakefile is under the acpiexec directory. 9650