changes.txt revision 202771
1117521Snjl---------------------------------------- 2202771Sjkim21 January 2010. Summary of changes for version 20100121: 3202771Sjkim 4202771Sjkim1) ACPI CA Core Subsystem: 5202771Sjkim 6202771SjkimAdded the 2010 copyright to all module headers and signons. This affects 7202771Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, the 8202771Sjkimtools/utilities, and the test suites. 9202771Sjkim 10202771SjkimImplemented a change to the AcpiGetDevices interface to eliminate unnecessary 11202771Sjkiminvocations of the _STA method. In the case where a specific _HID is 12202771Sjkimrequested, do not run _STA until a _HID match is found. This eliminates 13202771Sjkimpotentially dozens of _STA calls during a search for a particular device/HID, 14202771Sjkimwhich in turn can improve boot times. ACPICA BZ 828. Lin Ming. 15202771Sjkim 16202771SjkimImplemented an additional repair for predefined method return values. Attempt 17202771Sjkimto repair unexpected NULL elements within returned Package objects. Create an 18202771SjkimInteger of value zero, a NULL String, or a zero-length Buffer as appropriate. 19202771SjkimACPICA BZ 818. Lin Ming, Bob Moore. 20202771Sjkim 21202771SjkimRemoved the obsolete ACPI_INTEGER data type. This type was introduced as the 22202771Sjkimcode was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with 23202771Sjkim64-bit AML integers). It is now obsolete and this change removes it from the 24202771SjkimACPICA code base, replaced by UINT64. The original typedef has been retained 25202771Sjkimfor now for compatibility with existing device driver code. ACPICA BZ 824. 26202771Sjkim 27202771SjkimRemoved the unused UINT32_STRUCT type, and the obsolete Integer64 field in 28202771Sjkimthe parse tree object. 29202771Sjkim 30202771SjkimAdded additional warning options for the gcc-4 generation. Updated the source 31202771Sjkimaccordingly. This includes some code restructuring to eliminate unreachable 32202771Sjkimcode, elimination of some gotos, elimination of unused return values, some 33202771Sjkimadditional casting, and removal of redundant declarations. 34202771Sjkim 35202771SjkimExample Code and Data Size: These are the sizes for the OS-independent 36202771Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 37202771Sjkimdebug version of the code includes the debug output trace mechanism and has a 38202771Sjkimmuch larger code and data size. 39202771Sjkim 40202771Sjkim Previous Release: 41202771Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 42202771Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 43202771Sjkim Current Release: 44202771Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 45202771Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 46202771Sjkim 47202771Sjkim2) iASL Compiler/Disassembler and Tools: 48202771Sjkim 49202771SjkimNo functional changes for this release. 50202771Sjkim 51202771Sjkim---------------------------------------- 52200553Sjkim14 December 2009. Summary of changes for version 20091214: 53200553Sjkim 54200553Sjkim1) ACPI CA Core Subsystem: 55200553Sjkim 56200553SjkimEnhanced automatic data type conversions for predefined name repairs. This 57200553Sjkimchange expands the automatic repairs/conversions for predefined name return 58200553Sjkimvalues to make Integers, Strings, and Buffers fully interchangeable. Also, a 59200553SjkimBuffer can be converted to a Package of Integers if necessary. The nsrepair.c 60200553Sjkimmodule was completely restructured. Lin Ming, Bob Moore. 61200553Sjkim 62200553SjkimImplemented automatic removal of null package elements during predefined name 63200553Sjkimrepairs. This change will automatically remove embedded and trailing NULL 64200553Sjkimpackage elements from returned package objects that are defined to contain a 65200553Sjkimvariable number of sub-packages. The driver is then presented with a package 66200553Sjkimwith no null elements to deal with. ACPICA BZ 819. 67200553Sjkim 68200553SjkimImplemented a repair for the predefined _FDE and _GTM names. The expected 69200553Sjkimreturn value for both names is a Buffer of 5 DWORDs. This repair fixes two 70200553Sjkimpossible problems (both seen in the field), where a package of integers is 71200553Sjkimreturned, or a buffer of BYTEs is returned. With assistance from Jung-uk Kim. 72200553Sjkim 73200553SjkimImplemented additional module-level code support. This change will properly 74200553Sjkimexecute module-level code that is not at the root of the namespace (under a 75200553SjkimDevice object, etc.). Now executes the code within the current scope instead 76200553Sjkimof the root. ACPICA BZ 762. Lin Ming. 77200553Sjkim 78200553SjkimFixed possible mutex acquisition errors when running _REG methods. Fixes a 79200553Sjkimproblem where mutex errors can occur when running a _REG method that is in 80200553Sjkimthe same scope as a method-defined operation region or an operation region 81200553Sjkimunder a module-level IF block. This type of code is rare, so the problem has 82200553Sjkimnot been seen before. ACPICA BZ 826. Lin Ming, Bob Moore. 83200553Sjkim 84200553SjkimFixed a possible memory leak during module-level code execution. An object 85200553Sjkimcould be leaked for each block of executed module-level code if the 86200553Sjkiminterpreter slack mode is enabled This change deletes any implicitly returned 87200553Sjkimobject from the module-level code block. Lin Ming. 88200553Sjkim 89200553SjkimRemoved messages for successful predefined repair(s). The repair mechanism 90200553Sjkimwas considered too wordy. Now, messages are only unconditionally emitted if 91200553Sjkimthe return object cannot be repaired. Existing messages for successful 92200553Sjkimrepairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827. 93200553Sjkim 94200553SjkimExample Code and Data Size: These are the sizes for the OS-independent 95200553Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 96200553Sjkimdebug version of the code includes the debug output trace mechanism and has a 97200553Sjkimmuch larger code and data size. 98200553Sjkim 99200553Sjkim Previous Release: 100200553Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 101200553Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 102200553Sjkim Current Release: 103200553Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 104200553Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 105200553Sjkim 106200553Sjkim2) iASL Compiler/Disassembler and Tools: 107200553Sjkim 108200553SjkimiASL: Fixed a regression introduced in 20091112 where intermediate .SRC files 109200553Sjkimwere no longer automatically removed at the termination of the compile. 110200553Sjkim 111200553Sjkimacpiexec: Implemented the -f option to specify default region fill value. 112200553SjkimThis option specifies the value used to initialize buffers that simulate 113200553Sjkimoperation regions. Default value is zero. Useful for debugging problems that 114200553Sjkimdepend on a specific initial value for a region or field. 115200553Sjkim 116200553Sjkim---------------------------------------- 117199337Sjkim12 November 2009. Summary of changes for version 20091112: 118199337Sjkim 119199337Sjkim1) ACPI CA Core Subsystem: 120199337Sjkim 121199337SjkimImplemented a post-order callback to AcpiWalkNamespace. The existing 122199337Sjkiminterface only has a pre-order callback. This change adds an additional 123199337Sjkimparameter for a post-order callback which will be more useful for bus scans. 124199337SjkimACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference. 125199337Sjkim 126199337SjkimModified the behavior of the operation region memory mapping cache for 127199337SjkimSystemMemory. Ensure that the memory mappings created for operation regions 128199337Sjkimdo not cross 4K page boundaries. Crossing a page boundary while mapping 129199337Sjkimregions can cause kernel warnings on some hosts if the pages have different 130199337Sjkimattributes. Such regions are probably BIOS bugs, and this is the workaround. 131199337SjkimLinux BZ 14445. Lin Ming. 132199337Sjkim 133199337SjkimImplemented an automatic repair for predefined methods that must return 134199337Sjkimsorted lists. This change will repair (by sorting) packages returned by _ALR, 135199337Sjkim_PSS, and _TSS. Drivers can now assume that the packages are correctly sorted 136199337Sjkimand do not contain NULL package elements. Adds one new file, 137199337Sjkimnamespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore. 138199337Sjkim 139199337SjkimFixed a possible fault during predefined name validation if a return Package 140199337Sjkimobject contains NULL elements. Also adds a warning if a NULL element is 141199337Sjkimfollowed by any non-null elements. ACPICA BZ 813, 814. Future enhancement may 142199337Sjkiminclude repair or removal of all such NULL elements where possible. 143199337Sjkim 144199337SjkimImplemented additional module-level executable AML code support. This change 145199337Sjkimwill execute module-level code that is not at the root of the namespace 146199337Sjkim(under a Device object, etc.) at table load time. Module-level executable AML 147199337Sjkimcode has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming. 148199337Sjkim 149199337SjkimImplemented a new internal function to create Integer objects. This function 150199337Sjkimsimplifies miscellaneous object creation code. ACPICA BZ 823. 151199337Sjkim 152199337SjkimReduced the severity of predefined repair messages, Warning to Info. Since 153199337Sjkimthe object was successfully repaired, a warning is too severe. Reduced to an 154199337Sjkiminfo message for now. These messages may eventually be changed to debug-only. 155199337SjkimACPICA BZ 812. 156199337Sjkim 157199337SjkimExample Code and Data Size: These are the sizes for the OS-independent 158199337Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 159199337Sjkimdebug version of the code includes the debug output trace mechanism and has a 160199337Sjkimmuch larger code and data size. 161199337Sjkim 162199337Sjkim Previous Release: 163199337Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 164199337Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 165199337Sjkim Current Release: 166199337Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 167199337Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 168199337Sjkim 169199337Sjkim2) iASL Compiler/Disassembler and Tools: 170199337Sjkim 171199337SjkimiASL: Implemented Switch() with While(1) so that Break works correctly. This 172199337Sjkimchange correctly implements the Switch operator with a surrounding While(1) 173199337Sjkimso that the Break operator works as expected. ACPICA BZ 461. Lin Ming. 174199337Sjkim 175199337SjkimiASL: Added a message if a package initializer list is shorter than package 176199337Sjkimlength. Adds a new remark for a Package() declaration if an initializer list 177199337Sjkimexists, but is shorter than the declared length of the package. Although 178199337Sjkimtechnically legal, this is probably a coding error and it is seen in the 179199337Sjkimfield. ACPICA BZ 815. Lin Ming, Bob Moore. 180199337Sjkim 181199337SjkimiASL: Fixed a problem where the compiler could fault after the maximum number 182199337Sjkimof errors was reached (200). 183199337Sjkim 184199337Sjkimacpixtract: Fixed a possible warning for pointer cast if the compiler warning 185199337Sjkimlevel set very high. 186199337Sjkim 187199337Sjkim---------------------------------------- 188198237Sjkim13 October 2009. Summary of changes for version 20091013: 189197104Sjkim 190197104Sjkim1) ACPI CA Core Subsystem: 191197104Sjkim 192198237SjkimFixed a problem where an Operation Region _REG method could be executed more 193198237Sjkimthan once. If a custom address space handler is installed by the host before 194198237Sjkimthe "initialize operation regions" phase of the ACPICA initialization, any 195198237Sjkim_REG methods for that address space could be executed twice. This change 196198237Sjkimfixes the problem. ACPICA BZ 427. Lin Ming. 197198237Sjkim 198198237SjkimFixed a possible memory leak for the Scope() ASL operator. When the exact 199198237Sjkiminvocation of "Scope(\)" is executed (change scope to root), one internal 200198237Sjkimoperand object was leaked. Lin Ming. 201198237Sjkim 202198237SjkimImplemented a run-time repair for the _MAT predefined method. If the _MAT 203198237Sjkimreturn value is defined as a Field object in the AML, and the field 204198237Sjkimsize is less than or equal to the default width of an integer (32 or 64),_MAT 205198237Sjkimcan incorrectly return an Integer instead of a Buffer. ACPICA now 206198237Sjkimautomatically repairs this problem. ACPICA BZ 810. 207198237Sjkim 208198237SjkimImplemented a run-time repair for the _BIF and _BIX predefined methods. The 209198237Sjkim"OEM Information" field is often incorrectly returned as an Integer with 210198237Sjkimvalue zero if the field is not supported by the platform. This is due to an 211198237Sjkimambiguity in the ACPI specification. The field should always be a string. 212198237SjkimACPICA now automatically repairs this problem by returning a NULL string 213198237Sjkimwithin the returned Package. ACPICA BZ 807. 214198237Sjkim 215198237SjkimExample Code and Data Size: These are the sizes for the OS-independent 216198237Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 217198237Sjkimdebug version of the code includes the debug output trace mechanism and has a 218198237Sjkimmuch larger code and data size. 219198237Sjkim 220198237Sjkim Previous Release: 221198237Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 222198237Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 223198237Sjkim Current Release: 224198237Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 225198237Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 226198237Sjkim 227198237Sjkim2) iASL Compiler/Disassembler and Tools: 228198237Sjkim 229198237SjkimDisassembler: Fixed a problem where references to external symbols that 230198237Sjkimcontained one or more parent-prefixes (carats) were not handled correctly, 231198237Sjkimpossibly causing a fault. ACPICA BZ 806. Lin Ming. 232198237Sjkim 233198237SjkimDisassembler: Restructured the code so that all functions that handle 234198237Sjkimexternal symbols are in a single module. One new file is added, 235198237Sjkimcommon/dmextern.c. 236198237Sjkim 237198237SjkimAML Debugger: Added a max count argument for the Batch command (which 238198237Sjkimexecutes multiple predefined methods within the namespace.) 239198237Sjkim 240198237SjkimiASL: Updated the compiler documentation (User Reference.) Available at 241198237Sjkimhttp://www.acpica.org/documentation/. ACPICA BZ 750. 242198237Sjkim 243198237SjkimAcpiXtract: Updated for Lint and other formatting changes. Close all open 244198237Sjkimfiles. 245198237Sjkim 246198237Sjkim---------------------------------------- 247198237Sjkim03 September 2009. Summary of changes for version 20090903: 248198237Sjkim 249198237Sjkim1) ACPI CA Core Subsystem: 250198237Sjkim 251197104SjkimFor Windows Vista compatibility, added the automatic execution of an _INI 252197104Sjkimmethod located at the namespace root (\_INI). This method is executed at 253197104Sjkimtable load time. This support is in addition to the automatic execution of 254197104Sjkim\_SB._INI. Lin Ming. 255197104Sjkim 256197104SjkimFixed a possible memory leak in the interpreter for AML package objects if 257197104Sjkimthe package initializer list is longer than the defined size of the package. 258197104SjkimThis apparently can only happen if the BIOS changes the package size on the 259197104Sjkimfly (seen in a _PSS object), as ASL compilers do not allow this. The 260197104Sjkiminterpreter will truncate the package to the defined size (and issue an error 261197104Sjkimmessage), but previously could leave the extra objects undeleted if they were 262197104Sjkimpre-created during the argument processing (such is the case if the package 263197104Sjkimconsists of a number of sub-packages as in the _PSS.) ACPICA BZ 805. 264197104Sjkim 265197104SjkimFixed a problem seen when a Buffer or String is stored to itself via ASL. 266197104SjkimThis has been reported in the field. Previously, ACPICA would zero out the 267197104Sjkimbuffer/string. Now, the operation is treated as a noop. Provides Windows 268197104Sjkimcompatibility. ACPICA BZ 803. Lin Ming. 269197104Sjkim 270197104SjkimRemoved an extraneous error message for ASL constructs of the form 271197104SjkimStore(LocalX,LocalX) when LocalX is uninitialized. These curious statements 272197104Sjkimare seen in many BIOSs and are once again treated as NOOPs and no error is 273197104Sjkimemitted when they are encountered. ACPICA BZ 785. 274197104Sjkim 275197104SjkimFixed an extraneous warning message if a _DSM reserved method returns a 276197104SjkimPackage object. _DSM can return any type of object, so validation on the 277197104Sjkimreturn type cannot be performed. ACPICA BZ 802. 278197104Sjkim 279197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 280197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 281197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 282197104Sjkimmuch larger code and data size. 283197104Sjkim 284197104Sjkim Previous Release: 285197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 286197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 287197104Sjkim Current Release: 288197104Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 289197104Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 290197104Sjkim 291197104Sjkim2) iASL Compiler/Disassembler and Tools: 292197104Sjkim 293197104SjkimiASL: Fixed a problem with the use of the Alias operator and Resource 294197104SjkimTemplates. The correct alias is now constructed and no error is emitted. 295197104SjkimACPICA BZ 738. 296197104Sjkim 297197104SjkimiASL: Implemented the -I option to specify additional search directories for 298197104Sjkiminclude files. Allows multiple additional search paths for include files. 299197104SjkimDirectories are searched in the order specified on the command line (after 300197104Sjkimthe local directory is searched.) ACPICA BZ 800. 301197104Sjkim 302197104SjkimiASL: Fixed a problem where the full pathname for include files was not 303197104Sjkimemitted for warnings/errors. This caused the IDE support to not work 304197104Sjkimproperly. ACPICA BZ 765. 305197104Sjkim 306197104SjkimiASL: Implemented the -@ option to specify a Windows-style response file 307197104Sjkimcontaining additional command line options. ACPICA BZ 801. 308197104Sjkim 309197104SjkimAcpiExec: Added support to load multiple AML files simultaneously (such as a 310197104SjkimDSDT and multiple SSDTs). Also added support for wildcards within the AML 311197104Sjkimpathname. These features allow all machine tables to be easily loaded and 312197104Sjkimdebugged together. ACPICA BZ 804. 313197104Sjkim 314197104SjkimDisassembler: Added missing support for disassembly of HEST table Error Bank 315197104Sjkimsubtables. 316197104Sjkim 317197104Sjkim---------------------------------------- 318197104Sjkim30 July 2009. Summary of changes for version 20090730: 319197104Sjkim 320197104SjkimThe ACPI 4.0 implementation for ACPICA is complete with this release. 321197104Sjkim 322197104Sjkim1) ACPI CA Core Subsystem: 323197104Sjkim 324197104SjkimACPI 4.0: Added header file support for all new and changed ACPI tables. 325197104SjkimCompletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new 326197104Sjkimfor ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, 327197104SjkimEINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There 328197104Sjkimhave been some ACPI 4.0 changes to other existing tables. Split the large 329197104Sjkimactbl1.h header into the existing actbl2.h header. ACPICA BZ 774. 330197104Sjkim 331197104SjkimACPI 4.0: Implemented predefined name validation for all new names. There are 332197104Sjkim31 new names in ACPI 4.0. The predefined validation module was split into two 333197104Sjkimfiles. The new file is namespace/nsrepair.c. ACPICA BZ 770. 334197104Sjkim 335197104SjkimImplemented support for so-called "module-level executable code". This is 336197104Sjkimexecutable AML code that exists outside of any control method and is intended 337197104Sjkimto be executed at table load time. Although illegal since ACPI 2.0, this type 338197104Sjkimof code still exists and is apparently still being created. Blocks of this 339197104Sjkimcode are now detected and executed as intended. Currently, the code blocks 340197104Sjkimmust exist under either an If, Else, or While construct; these are the 341197104Sjkimtypical cases seen in the field. ACPICA BZ 762. Lin Ming. 342197104Sjkim 343197104SjkimImplemented an automatic dynamic repair for predefined names that return 344197104Sjkimnested Package objects. This applies to predefined names that are defined to 345197104Sjkimreturn a variable-length Package of sub-packages. If the number of sub- 346197104Sjkimpackages is one, BIOS code is occasionally seen that creates a simple single 347197104Sjkimpackage with no sub-packages. This code attempts to fix the problem by 348197104Sjkimwrapping a new package object around the existing package. These methods can 349197104Sjkimbe repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ 350197104Sjkim790. 351197104Sjkim 352197104SjkimFixed a regression introduced in 20090625 for the AcpiGetDevices interface. 353197104SjkimThe _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA 354197104SjkimBZ 793. 355197104Sjkim 356197104SjkimFixed a problem with AcpiReset where the reset would silently fail if the 357197104Sjkimregister was one of the protected I/O ports. AcpiReset now bypasses the port 358197104Sjkimvalidation mechanism. This may eventually be driven into the AcpiRead/Write 359197104Sjkiminterfaces. 360197104Sjkim 361197104SjkimFixed a regression related to the recent update of the AcpiRead/Write 362197104Sjkiminterfaces. A sleep/suspend could fail if the optional PM2 Control register 363197104Sjkimdoes not exist during an attempt to write the Bus Master Arbitration bit. 364197104Sjkim(However, some hosts already delete the code that writes this bit, and the 365197104Sjkimcode may in fact be obsolete at this date.) ACPICA BZ 799. 366197104Sjkim 367197104SjkimFixed a problem where AcpiTerminate could fault if inadvertently called twice 368197104Sjkimin succession. ACPICA BZ 795. 369197104Sjkim 370197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 371197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 372197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 373197104Sjkimmuch larger code and data size. 374197104Sjkim 375197104Sjkim Previous Release: 376197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 377197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 378197104Sjkim Current Release: 379197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 380197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 381197104Sjkim 382197104Sjkim2) iASL Compiler/Disassembler and Tools: 383197104Sjkim 384197104SjkimACPI 4.0: Implemented disassembler support for all new ACPI tables and 385197104Sjkimchanges to existing tables. ACPICA BZ 775. 386197104Sjkim 387197104Sjkim---------------------------------------- 388197104Sjkim25 June 2009. Summary of changes for version 20090625: 389197104Sjkim 390197104SjkimThe ACPI 4.0 Specification was released on June 16 and is available at 391197104Sjkimwww.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will 392197104Sjkimcontinue for the next few releases. 393197104Sjkim 394197104Sjkim1) ACPI CA Core Subsystem: 395197104Sjkim 396197104SjkimACPI 4.0: Implemented interpreter support for the IPMI operation region 397197104Sjkimaddress space. Includes support for bi-directional data buffers and an IPMI 398197104Sjkimaddress space handler (to be installed by an IPMI device driver.) ACPICA BZ 399197104Sjkim773. Lin Ming. 400197104Sjkim 401197104SjkimACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes 402197104Sjkimsupport in both the header files and the disassembler. 403197104Sjkim 404197104SjkimCompleted a major update for the AcpiGetObjectInfo external interface. 405197104SjkimChanges include: 406197104Sjkim - Support for variable, unlimited length HID, UID, and CID strings. 407197104Sjkim - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) 408197104Sjkim - Call the _SxW power methods on behalf of a device object. 409197104Sjkim - Determine if a device is a PCI root bridge. 410197104Sjkim - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. 411197104SjkimThese changes will require an update to all callers of this interface. See 412197104Sjkimthe updated ACPICA Programmer Reference for details. One new source file has 413197104Sjkimbeen added - utilities/utids.c. ACPICA BZ 368, 780. 414197104Sjkim 415197104SjkimUpdated the AcpiRead and AcpiWrite external interfaces to support 64-bit 416197104Sjkimtransfers. The Value parameter has been extended from 32 bits to 64 bits in 417197104Sjkimorder to support new ACPI 4.0 tables. These changes will require an update to 418197104Sjkimall callers of these interfaces. See the ACPICA Programmer Reference for 419197104Sjkimdetails. ACPICA BZ 768. 420197104Sjkim 421197104SjkimFixed several problems with AcpiAttachData. The handler was not invoked when 422197104Sjkimthe host node was deleted. The data sub-object was not automatically deleted 423197104Sjkimwhen the host node was deleted. The interface to the handler had an unused 424197104Sjkimparameter, this was removed. ACPICA BZ 778. 425197104Sjkim 426197104SjkimEnhanced the function that dumps ACPI table headers. All non-printable 427197104Sjkimcharacters in the string fields are now replaced with '?' (Signature, OemId, 428197104SjkimOemTableId, and CompilerId.) ACPI tables with non-printable characters in 429197104Sjkimthese fields are occasionally seen in the field. ACPICA BZ 788. 430197104Sjkim 431197104SjkimFixed a problem with predefined method repair code where the code that 432197104Sjkimattempts to repair/convert an object of incorrect type is only executed on 433197104Sjkimthe first time the predefined method is called. The mechanism that disables 434197104Sjkimwarnings on subsequent calls was interfering with the repair mechanism. 435197104SjkimACPICA BZ 781. 436197104Sjkim 437197104SjkimFixed a possible memory leak in the predefined validation/repair code when a 438197104Sjkimbuffer is automatically converted to an expected string object. 439197104Sjkim 440197104SjkimRemoved obsolete 16-bit files from the distribution and from the current git 441197104Sjkimtree head. ACPICA BZ 776. 442197104Sjkim 443197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 444197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 445197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 446197104Sjkimmuch larger code and data size. 447197104Sjkim 448197104Sjkim Previous Release: 449197104Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 450197104Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 451197104Sjkim Current Release: 452197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 453197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 454197104Sjkim 455197104Sjkim2) iASL Compiler/Disassembler and Tools: 456197104Sjkim 457197104SjkimACPI 4.0: iASL and Disassembler - implemented support for the new IPMI 458197104Sjkimoperation region keyword. ACPICA BZ 771, 772. Lin Ming. 459197104Sjkim 460197104SjkimACPI 4.0: iASL - implemented compile-time validation support for all new 461197104Sjkimpredefined names and control methods (31 total). ACPICA BZ 769. 462197104Sjkim 463197104Sjkim---------------------------------------- 464193267Sjkim21 May 2009. Summary of changes for version 20090521: 465193267Sjkim 466193267Sjkim1) ACPI CA Core Subsystem: 467193267Sjkim 468193267SjkimDisabled the preservation of the SCI enable bit in the PM1 control register. 469193267SjkimThe SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be 470193267Sjkima "preserved" bit - "OSPM always preserves this bit position", section 471193267Sjkim4.7.3.2.1. However, some machines fail if this bit is in fact preserved 472193267Sjkimbecause the bit needs to be explicitly set by the OS as a workaround. No 473193267Sjkimmachines fail if the bit is not preserved. Therefore, ACPICA no longer 474193267Sjkimattempts to preserve this bit. 475193267Sjkim 476193267SjkimFixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or 477193267Sjkimincorrectly formed _PRT package could cause a fault. Added validation to 478193267Sjkimensure that each package element is actually a sub-package. 479193267Sjkim 480193267SjkimImplemented a new interface to install or override a single control method, 481193267SjkimAcpiInstallMethod. This interface is useful when debugging in order to repair 482193267Sjkiman existing method or to install a missing method without having to override 483193267Sjkimthe entire ACPI table. See the ACPICA Programmer Reference for use and 484193267Sjkimexamples. Lin Ming, Bob Moore. 485193267Sjkim 486193267SjkimFixed several reference count issues with the DdbHandle object that is 487193267Sjkimcreated from a Load or LoadTable operator. Prevent premature deletion of the 488193267Sjkimobject. Also, mark the object as invalid once the table has been unloaded. 489193267SjkimThis is needed because the handle itself may not be deleted after the table 490193267Sjkimunload, depending on whether it has been stored in a named object by the 491193267Sjkimcaller. Lin Ming. 492193267Sjkim 493193267SjkimFixed a problem with Mutex Sync Levels. Fixed a problem where if multiple 494193267Sjkimmutexes of the same sync level are acquired but then not released in strict 495193267Sjkimopposite order, the internally maintained Current Sync Level becomes confused 496193267Sjkimand can cause subsequent execution errors. ACPICA BZ 471. 497193267Sjkim 498193267SjkimChanged the allowable release order for ASL mutex objects. The ACPI 4.0 499193267Sjkimspecification has been changed to make the SyncLevel for mutex objects more 500193267Sjkimuseful. When releasing a mutex, the SyncLevel of the mutex must now be the 501193267Sjkimsame as the current sync level. This makes more sense than the previous rule 502193267Sjkim(SyncLevel less than or equal). This change updates the code to match the 503193267Sjkimspecification. 504193267Sjkim 505193267SjkimFixed a problem with the local version of the AcpiOsPurgeCache function. The 506193267Sjkim(local) cache must be locked during all cache object deletions. Andrew 507193267SjkimBaumann. 508193267Sjkim 509193267SjkimUpdated the Load operator to use operation region interfaces. This replaces 510193267Sjkimdirect memory mapping with region access calls. Now, all region accesses go 511193267Sjkimthrough the installed region handler as they should. 512193267Sjkim 513193267SjkimSimplified and optimized the NsGetNextNode function. Reduced parameter count 514193267Sjkimand reduced code for this frequently used function. 515193267Sjkim 516193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 517193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 518193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 519193267Sjkimmuch larger code and data size. 520193267Sjkim 521193267Sjkim Previous Release: 522193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 523193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 524193267Sjkim Current Release: 525193267Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 526193267Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 527193267Sjkim 528193267Sjkim2) iASL Compiler/Disassembler and Tools: 529193267Sjkim 530193267SjkimDisassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems 531193267Sjkimwith sub-table disassembly and handling invalid sub-tables. Attempt recovery 532193267Sjkimafter an invalid sub-table ID. 533193267Sjkim 534193267Sjkim---------------------------------------- 535193267Sjkim22 April 2009. Summary of changes for version 20090422: 536193267Sjkim 537193267Sjkim1) ACPI CA Core Subsystem: 538193267Sjkim 539193267SjkimFixed a compatibility issue with the recently released I/O port protection 540193267Sjkimmechanism. For windows compatibility, 1) On a port protection violation, 541193267Sjkimsimply ignore the request and do not return an exception (allow the control 542193267Sjkimmethod to continue execution.) 2) If only part of the request overlaps a 543193267Sjkimprotected port, read/write the individual ports that are not protected. Linux 544193267SjkimBZ 13036. Lin Ming 545193267Sjkim 546193267SjkimEnhanced the execution of the ASL/AML BreakPoint operator so that it actually 547193267Sjkimbreaks into the AML debugger if the debugger is present. This matches the 548193267SjkimACPI-defined behavior. 549193267Sjkim 550193267SjkimFixed several possible warnings related to the use of the configurable 551193267SjkimACPI_THREAD_ID. This type can now be configured as either an integer or a 552193267Sjkimpointer with no warnings. Also fixes several warnings in printf-like 553193267Sjkimstatements for the 64-bit build when the type is configured as a pointer. 554193267SjkimACPICA BZ 766, 767. 555193267Sjkim 556193267SjkimFixed a number of possible warnings when compiling with gcc 4+ (depending on 557193267Sjkimwarning options.) Examples include printf formats, aliasing, unused globals, 558193267Sjkimmissing prototypes, missing switch default statements, use of non-ANSI 559193267Sjkimlibrary functions, use of non-ANSI constructs. See generate/unix/Makefile for 560193267Sjkima list of warning options used with gcc 3 and 4. ACPICA BZ 735. 561193267Sjkim 562193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 563193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 564193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 565193267Sjkimmuch larger code and data size. 566193267Sjkim 567193267Sjkim Previous Release: 568193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 569193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 570193267Sjkim Current Release: 571193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 572193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 573193267Sjkim 574193267Sjkim2) iASL Compiler/Disassembler and Tools: 575193267Sjkim 576193267SjkimiASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on 577193267Sjkimthe 64-bit build. 578193267Sjkim 579193267SjkimiASL: Fixed a problem where the Unix/Linux versions of the compiler could not 580193267Sjkimcorrectly digest Windows/DOS formatted files (with CR/LF). 581193267Sjkim 582193267SjkimiASL: Added a new option for "quiet mode" (-va) that produces only the 583193267Sjkimcompilation summary, not individual errors and warnings. Useful for large 584193267Sjkimbatch compilations. 585193267Sjkim 586193267SjkimAcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex 587193267Sjkimtimeout that can be used to detect hang conditions during execution of AML 588193267Sjkimcode (includes both internal semaphores and AML-defined mutexes and events.) 589193267Sjkim 590193267SjkimAdded new makefiles for the generation of acpica in a generic unix-like 591193267Sjkimenvironment. These makefiles are intended to generate the acpica tools and 592193267Sjkimutilities from the original acpica git source tree structure. 593193267Sjkim 594193267SjkimTest Suites: Updated and cleaned up the documentation files. Updated the 595193267Sjkimcopyrights to 2009, affecting all source files. Use the new version of iASL 596193267Sjkimwith quiet mode. Increased the number of available semaphores in the Windows 597193267SjkimOSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added 598193267Sjkiman alternate implementation of the semaphore timeout to allow aslts to 599193267Sjkimexecute fully on Cygwin. 600193267Sjkim 601193267Sjkim---------------------------------------- 602193267Sjkim20 March 2009. Summary of changes for version 20090320: 603193267Sjkim 604193267Sjkim1) ACPI CA Core Subsystem: 605193267Sjkim 606193267SjkimFixed a possible race condition between AcpiWalkNamespace and dynamic table 607193267Sjkimunloads. Added a reader/writer locking mechanism to allow multiple concurrent 608193267Sjkimnamespace walks (readers), but block a dynamic table unload until it can gain 609193267Sjkimexclusive write access to the namespace. This fixes a problem where a table 610193267Sjkimunload could (possibly catastrophically) delete the portion of the namespace 611193267Sjkimthat is currently being examined by a walk. Adds a new file, utlock.c, that 612193267Sjkimimplements the reader/writer lock mechanism. ACPICA BZ 749. 613193267Sjkim 614193267SjkimFixed a regression introduced in version 20090220 where a change to the FADT 615193267Sjkimhandling could cause the ACPICA subsystem to access non-existent I/O ports. 616193267Sjkim 617193267SjkimModified the handling of FADT register and table (FACS/DSDT) addresses. The 618193267SjkimFADT can contain both 32-bit and 64-bit versions of these addresses. 619193267SjkimPreviously, the 64-bit versions were favored, meaning that if both 32 and 64 620193267Sjkimversions were valid, but not equal, the 64-bit version was used. This was 621193267Sjkimfound to cause some machines to fail. Now, in this case, the 32-bit version 622193267Sjkimis used instead. This now matches the Windows behavior. 623193267Sjkim 624193267SjkimImplemented a new mechanism to protect certain I/O ports. Provides Microsoft 625193267Sjkimcompatibility and protects the standard PC I/O ports from access via AML 626193267Sjkimcode. Adds a new file, hwvalid.c 627193267Sjkim 628193267SjkimFixed a possible extraneous warning message from the FADT support. The 629193267Sjkimmessage warns of a 32/64 length mismatch between the legacy and GAS 630193267Sjkimdefinitions for a register. 631193267Sjkim 632193267SjkimRemoved the obsolete AcpiOsValidateAddress OSL interface. This interface is 633193267Sjkimmade obsolete by the port protection mechanism above. It was previously used 634193267Sjkimto validate the entire address range of an operation region, which could be 635193267Sjkimincorrect if the range included illegal ports, but fields within the 636193267Sjkimoperation region did not actually access those ports. Validation is now 637193267Sjkimperformed on a per-field basis instead of the entire region. 638193267Sjkim 639193267SjkimModified the handling of the PM1 Status Register ignored bit (bit 11.) 640193267SjkimIgnored bits must be "preserved" according to the ACPI spec. Usually, this 641193267Sjkimmeans a read/modify/write when writing to the register. However, for status 642193267Sjkimregisters, writing a one means clear the event. Writing a zero means preserve 643193267Sjkimthe event (do not clear.) This behavior is clarified in the ACPI 4.0 spec, 644193267Sjkimand the ACPICA code now simply always writes a zero to the ignored bit. 645193267Sjkim 646193267SjkimModified the handling of ignored bits for the PM1 A/B Control Registers. As 647193267Sjkimper the ACPI specification, for the control registers, preserve 648193267Sjkim(read/modify/write) all bits that are defined as either reserved or ignored. 649193267Sjkim 650193267SjkimUpdated the handling of write-only bits in the PM1 A/B Control Registers. 651193267SjkimWhen reading the register, zero the write-only bits as per the ACPI spec. 652193267SjkimACPICA BZ 443. Lin Ming. 653193267Sjkim 654193267SjkimRemoved "Linux" from the list of supported _OSI strings. Linux no longer 655193267Sjkimwants to reply true to this request. The Windows strings are the only paths 656193267Sjkimthrough the AML that are tested and known to work properly. 657193267Sjkim 658193267Sjkim Previous Release: 659193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 660193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 661193267Sjkim Current Release: 662193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 663193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 664193267Sjkim 665193267Sjkim2) iASL Compiler/Disassembler and Tools: 666193267Sjkim 667193267SjkimAcpiexec: Split the large aeexec.c file into two new files, aehandlers.c and 668193267Sjkimaetables.c 669193267Sjkim 670193267Sjkim---------------------------------------- 671193267Sjkim20 February 2009. Summary of changes for version 20090220: 672193267Sjkim 673193267Sjkim1) ACPI CA Core Subsystem: 674193267Sjkim 675193267SjkimOptimized the ACPI register locking. Removed locking for reads from the ACPI 676193267Sjkimbit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is 677193267Sjkimnot required when reading the single-bit registers. The 678193267SjkimAcpiGetRegisterUnlocked function is no longer needed and has been removed. 679193267SjkimThis will improve performance for reads on these registers. ACPICA BZ 760. 680193267Sjkim 681193267SjkimFixed the parameter validation for AcpiRead/Write. Now return 682193267SjkimAE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if 683193267Sjkimthe register has an address of zero. Previously, these cases simply returned 684193267SjkimAE_OK. For optional registers such as PM1B status/enable/control, the caller 685193267Sjkimshould check for a valid register address before calling. ACPICA BZ 748. 686193267Sjkim 687193267SjkimRenamed the external ACPI bit register access functions. Renamed 688193267SjkimAcpiGetRegister and AcpiSetRegister to clarify the purpose of these 689193267Sjkimfunctions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister. 690193267SjkimAlso, restructured the code for these functions by simplifying the code path 691193267Sjkimand condensing duplicate code to reduce code size. 692193267Sjkim 693193267SjkimAdded new functions to transparently handle the possibly split PM1 A/B 694193267Sjkimregisters. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions 695193267Sjkimnow handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ 696193267Sjkim746. 697193267Sjkim 698193267SjkimAdded a function to handle the PM1 control registers, AcpiHwWritePm1Control. 699193267SjkimThis function writes both of the PM1 control registers (A/B). These registers 700193267Sjkimare different than the PM1 A/B status and enable registers in that different 701193267Sjkimvalues can be written to the A/B registers. Most notably, the SLP_TYP bits 702193267Sjkimcan be different, as per the values returned from the _Sx predefined methods. 703193267Sjkim 704193267SjkimRemoved an extra register write within AcpiHwClearAcpiStatus. This function 705193267Sjkimwas writing an optional PM1B status register twice. The existing call to the 706193267Sjkimlow-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B 707193267Sjkimregister. ACPICA BZ 751. 708193267Sjkim 709193267SjkimSplit out the PM1 Status registers from the FADT. Added new globals for these 710193267Sjkimregisters (A/B), similar to the way the PM1 Enable registers are handled. 711193267SjkimInstead of overloading the FADT Event Register blocks. This makes the code 712193267Sjkimclearer and less prone to error. 713193267Sjkim 714193267SjkimFixed the warning message for when the platform contains too many ACPI tables 715193267Sjkimfor the default size of the global root table data structure. The calculation 716193267Sjkimfor the truncation value was incorrect. 717193267Sjkim 718193267SjkimRemoved the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this 719193267Sjkimobsolete macro, since it is now a simple reference to ->common.type. There 720193267Sjkimwere about 150 invocations of the macro across 41 files. ACPICA BZ 755. 721193267Sjkim 722193267SjkimRemoved the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as 723193267SjkimTYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to 724193267Sjkimsimply SLEEP_TYPE. ACPICA BZ 754. 725193267Sjkim 726193267SjkimConditionally compile the AcpiSetFirmwareWakingVector64 function. This 727193267Sjkimfunction is only needed on 64-bit host operating systems and is thus not 728193267Sjkimincluded for 32-bit hosts. 729193267Sjkim 730193267SjkimDebug output: print the input and result for invocations of the _OSI reserved 731193267Sjkimcontrol method via the ACPI_LV_INFO debug level. Also, reduced some of the 732193267Sjkimverbosity of this debug level. Len Brown. 733193267Sjkim 734193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 735193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 736193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 737193267Sjkimmuch larger code and data size. 738193267Sjkim 739193267Sjkim Previous Release: 740193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 741193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 742193267Sjkim Current Release: 743193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 744193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 745193267Sjkim 746193267Sjkim2) iASL Compiler/Disassembler and Tools: 747193267Sjkim 748193267SjkimDisassembler: Decode the FADT PM_Profile field. Emit ascii names for the 749193267Sjkimvarious legal performance profiles. 750193267Sjkim 751193267Sjkim---------------------------------------- 752193267Sjkim23 January 2009. Summary of changes for version 20090123: 753193267Sjkim 754193267Sjkim1) ACPI CA Core Subsystem: 755193267Sjkim 756193267SjkimAdded the 2009 copyright to all module headers and signons. This affects 757193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 758193267Sjkimthe tools/utilities. 759193267Sjkim 760193267SjkimImplemented a change to allow the host to override any ACPI table, including 761193267Sjkimdynamically loaded tables. Previously, only the DSDT could be replaced by the 762193267Sjkimhost. With this change, the AcpiOsTableOverride interface is called for each 763193267Sjkimtable found in the RSDT/XSDT during ACPICA initialization, and also whenever 764193267Sjkima table is dynamically loaded via the AML Load operator. 765193267Sjkim 766193267SjkimUpdated FADT flag definitions, especially the Boot Architecture flags. 767193267Sjkim 768193267SjkimDebugger: For the Find command, automatically pad the input ACPI name with 769193267Sjkimunderscores if the name is shorter than 4 characters. This enables a match 770193267Sjkimwith the actual namespace entry which is itself padded with underscores. 771193267Sjkim 772193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 773193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 774193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 775193267Sjkimmuch larger code and data size. 776193267Sjkim 777193267Sjkim Previous Release: 778193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 779193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 780193267Sjkim Current Release: 781193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 782193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 783193267Sjkim 784193267Sjkim2) iASL Compiler/Disassembler and Tools: 785193267Sjkim 786193267SjkimFix build error under Bison-2.4. 787193267Sjkim 788193267SjkimDissasembler: Enhanced FADT support. Added decoding of the Boot Architecture 789193267Sjkimflags. Now decode all flags, regardless of the FADT version. Flag output 790193267Sjkimincludes the FADT version which first defined each flag. 791193267Sjkim 792193267SjkimThe iASL -g option now dumps the RSDT to a file (in addition to the FADT and 793193267SjkimDSDT). Windows only. 794193267Sjkim 795193267Sjkim---------------------------------------- 796193267Sjkim04 December 2008. Summary of changes for version 20081204: 797193267Sjkim 798193267Sjkim1) ACPI CA Core Subsystem: 799193267Sjkim 800193267SjkimThe ACPICA Programmer Reference has been completely updated and revamped for 801193267Sjkimthis release. This includes updates to the external interfaces, OSL 802193267Sjkiminterfaces, the overview sections, and the debugger reference. 803193267Sjkim 804193267SjkimSeveral new ACPICA interfaces have been implemented and documented in the 805193267Sjkimprogrammer reference: 806193267SjkimAcpiReset - Writes the reset value to the FADT-defined reset register. 807193267SjkimAcpiDisableAllGpes - Disable all available GPEs. 808193267SjkimAcpiEnableAllRuntimeGpes - Enable all available runtime GPEs. 809193267SjkimAcpiGetGpeDevice - Get the GPE block device associated with a GPE. 810193267SjkimAcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs. 811193267SjkimAcpiRead - Low-level read ACPI register (was HwLowLevelRead.) 812193267SjkimAcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.) 813193267Sjkim 814193267SjkimMost of the public ACPI hardware-related interfaces have been moved to a new 815193267Sjkimfile, components/hardware/hwxface.c 816193267Sjkim 817193267SjkimEnhanced the FADT parsing and low-level ACPI register access: The ACPI 818193267Sjkimregister lengths within the FADT are now used, and the low level ACPI 819193267Sjkimregister access no longer hardcodes the ACPI register lengths. Given that 820193267Sjkimthere may be some risk in actually trusting the FADT register lengths, a run- 821193267Sjkimtime option was added to fall back to the default hardcoded lengths if the 822193267SjkimFADT proves to contain incorrect values - UseDefaultRegisterWidths. This 823193267Sjkimoption is set to true for now, and a warning is issued if a suspicious FADT 824193267Sjkimregister length is overridden with the default value. 825193267Sjkim 826193267SjkimFixed a reference count issue in NsRepairObject. This problem was introduced 827193267Sjkimin version 20081031 as part of a fix to repair Buffer objects within 828193267SjkimPackages. Lin Ming. 829193267Sjkim 830193267SjkimAdded semaphore support to the Linux/Unix application OS-services layer 831193267Sjkim(OSL). ACPICA BZ 448. Lin Ming. 832193267Sjkim 833193267SjkimAdded the ACPI_MUTEX_TYPE configuration option to select whether mutexes will 834193267Sjkimbe implemented in the OSL, or will binary semaphores be used instead. 835193267Sjkim 836193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 837193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 838193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 839193267Sjkimmuch larger code and data size. 840193267Sjkim 841193267Sjkim Previous Release: 842193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 843193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 844193267Sjkim Current Release: 845193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 846193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 847193267Sjkim 848193267Sjkim2) iASL Compiler/Disassembler and Tools: 849193267Sjkim 850193267SjkimiASL: Completed the '-e' option to include additional ACPI tables in order to 851193267Sjkimaid with disassembly and External statement generation. ACPICA BZ 742. Lin 852193267SjkimMing. 853193267Sjkim 854193267SjkimiASL: Removed the "named object in while loop" error. The compiler cannot 855193267Sjkimdetermine how many times a loop will execute. ACPICA BZ 730. 856193267Sjkim 857193267SjkimDisassembler: Implemented support for FADT revision 2 (MS extension). ACPICA 858193267SjkimBZ 743. 859193267Sjkim 860193267SjkimDisassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG). 861193267Sjkim 862193267Sjkim---------------------------------------- 863193267Sjkim31 October 2008. Summary of changes for version 20081031: 864193267Sjkim 865193267Sjkim1) ACPI CA Core Subsystem: 866193267Sjkim 867193267SjkimRestructured the ACPICA header files into public/private. acpi.h now includes 868193267Sjkimonly the "public" acpica headers. All other acpica headers are "private" and 869193267Sjkimshould not be included by acpica users. One new file, accommon.h is used to 870193267Sjkiminclude the commonly used private headers for acpica code generation. Future 871193267Sjkimplans include moving all private headers to a new subdirectory. 872193267Sjkim 873193267SjkimImplemented an automatic Buffer->String return value conversion for 874193267Sjkimpredefined ACPI methods. For these methods (such as _BIF), added automatic 875193267Sjkimconversion for return objects that are required to be a String, but a Buffer 876193267Sjkimwas found instead. This can happen when reading string battery data from an 877193267Sjkimoperation region, because it used to be difficult to convert the data from 878193267Sjkimbuffer to string from within the ASL. Ensures that the host OS is provided 879193267Sjkimwith a valid null-terminated string. Linux BZ 11822. 880193267Sjkim 881193267SjkimUpdated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector 882193267Sjkiminto two: one for the 32-bit vector, another for the 64-bit vector. This is 883193267Sjkimrequired because the host OS must setup the wake much differently for each 884193267Sjkimvector (real vs. protected mode, etc.) and the interface itself should not be 885193267Sjkimdeciding which vector to use. Also, eliminated the GetFirmwareWakingVector 886193267Sjkiminterface, as it served no purpose (only the firmware reads the vector, OS 887193267Sjkimonly writes the vector.) ACPICA BZ 731. 888193267Sjkim 889193267SjkimImplemented a mechanism to escape infinite AML While() loops. Added a loop 890193267Sjkimcounter to force exit from AML While loops if the count becomes too large. 891193267SjkimThis can occur in poorly written AML when the hardware does not respond 892193267Sjkimwithin a while loop and the loop does not implement a timeout. The maximum 893193267Sjkimloop count is configurable. A new exception code is returned when a loop is 894193267Sjkimbroken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore. 895193267Sjkim 896193267SjkimOptimized the execution of AML While loops. Previously, a control state 897193267Sjkimobject was allocated and freed for each execution of the loop. The 898193267Sjkimoptimization is to simply reuse the control state for each iteration. This 899193267Sjkimspeeds up the raw loop execution time by about 5%. 900193267Sjkim 901193267SjkimEnhanced the implicit return mechanism. For Windows compatibility, return an 902193267Sjkimimplicit integer of value zero for methods that contain no executable code. 903193267SjkimSuch methods are seen in the field as stubs (presumably), and can cause 904193267Sjkimdrivers to fail if they expect a return value. Lin Ming. 905193267Sjkim 906193267SjkimAllow multiple backslashes as root prefixes in namepaths. In a fully 907193267Sjkimqualified namepath, allow multiple backslash prefixes. This can happen (and 908193267Sjkimis seen in the field) because of the use of a double-backslash in strings 909193267Sjkim(since backslash is the escape character) causing confusion. ACPICA BZ 739 910193267SjkimLin Ming. 911193267Sjkim 912193267SjkimEmit a warning if two different FACS or DSDT tables are discovered in the 913193267SjkimFADT. Checks if there are two valid but different addresses for the FACS and 914193267SjkimDSDT within the FADT (mismatch between the 32-bit and 64-bit fields.) 915193267Sjkim 916193267SjkimConsolidated the method argument count validation code. Merged the code that 917193267Sjkimvalidates control method argument counts into the predefined validation 918193267Sjkimmodule. Eliminates possible multiple warnings for incorrect argument counts. 919193267Sjkim 920193267SjkimImplemented ACPICA example code. Includes code for ACPICA initialization, 921193267Sjkimhandler installation, and calling a control method. Available at 922193267Sjkimsource/tools/examples. 923193267Sjkim 924193267SjkimAdded a global pointer for FACS table to simplify internal FACS access. Use 925193267Sjkimthe global pointer instead of using AcpiGetTableByIndex for each FACS access. 926193267SjkimThis simplifies the code for the Global Lock and the Firmware Waking 927193267SjkimVector(s). 928193267Sjkim 929193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 930193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 931193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 932193267Sjkimmuch larger code and data size. 933193267Sjkim 934193267Sjkim Previous Release: 935193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 936193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 937193267Sjkim Current Release: 938193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 939193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 940193267Sjkim 941193267Sjkim2) iASL Compiler/Disassembler and Tools: 942193267Sjkim 943193267SjkimiASL: Improved disassembly of external method calls. Added the -e option to 944193267Sjkimallow the inclusion of additional ACPI tables to help with the disassembly of 945193267Sjkimmethod invocations and the generation of external declarations during the 946193267Sjkimdisassembly. Certain external method invocations cannot be disassembled 947193267Sjkimproperly without the actual declaration of the method. Use the -e option to 948193267Sjkiminclude the table where the external method(s) are actually declared. Most 949193267Sjkimuseful for disassembling SSDTs that make method calls back to the master 950193267SjkimDSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d 951193267Sjkim-e dsdt.aml ssdt1.aml 952193267Sjkim 953193267SjkimiASL: Fix to allow references to aliases within ASL namepaths. Fixes a 954193267Sjkimproblem where the use of an alias within a namepath would result in a not 955193267Sjkimfound error or cause the compiler to fault. Also now allows forward 956193267Sjkimreferences from the Alias operator itself. ACPICA BZ 738. 957193267Sjkim 958193267Sjkim---------------------------------------- 959193267Sjkim26 September 2008. Summary of changes for version 20080926: 960193267Sjkim 961193267Sjkim1) ACPI CA Core Subsystem: 962193267Sjkim 963193267SjkimDesigned and implemented a mechanism to validate predefined ACPI methods and 964193267Sjkimobjects. This code validates the predefined ACPI objects (objects whose names 965193267Sjkimstart with underscore) that appear in the namespace, at the time they are 966193267Sjkimevaluated. The argument count and the type of the returned object are 967193267Sjkimvalidated against the ACPI specification. The purpose of this validation is 968193267Sjkimto detect problems with the BIOS-implemented predefined ACPI objects before 969193267Sjkimthe results are returned to the ACPI-related drivers. Future enhancements may 970193267Sjkiminclude actual repair of incorrect return objects where possible. Two new 971193267Sjkimfiles are nspredef.c and acpredef.h. 972193267Sjkim 973193267SjkimFixed a fault in the AML parser if a memory allocation fails during the Op 974193267Sjkimcompletion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492. 975193267Sjkim 976193267SjkimFixed an issue with implicit return compatibility. This change improves the 977193267Sjkimimplicit return mechanism to be more compatible with the MS interpreter. Lin 978193267SjkimMing, ACPICA BZ 349. 979193267Sjkim 980193267SjkimImplemented support for zero-length buffer-to-string conversions. Allow zero 981193267Sjkimlength strings during interpreter buffer-to-string conversions. For example, 982193267Sjkimduring the ToDecimalString and ToHexString operators, as well as implicit 983193267Sjkimconversions. Fiodor Suietov, ACPICA BZ 585. 984193267Sjkim 985193267SjkimFixed two possible memory leaks in the error exit paths of 986193267SjkimAcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are 987193267Sjkimsimilar in that they use a stack of state objects in order to eliminate 988193267Sjkimrecursion. The stack must be fully unwound and deallocated if an error 989193267Sjkimoccurs. Lin Ming. ACPICA BZ 383. 990193267Sjkim 991193267SjkimRemoved the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global 992193267SjkimACPI register table. This bit does not exist and is unused. Lin Ming, Bob 993193267SjkimMoore ACPICA BZ 442. 994193267Sjkim 995193267SjkimRemoved the obsolete version number in module headers. Removed the 996193267Sjkim"$Revision" number that appeared in each module header. This version number 997193267Sjkimwas useful under SourceSafe and CVS, but has no meaning under git. It is not 998193267Sjkimonly incorrect, it could also be misleading. 999193267Sjkim 1000193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1001193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1002193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1003193267Sjkimmuch larger code and data size. 1004193267Sjkim 1005193267Sjkim Previous Release: 1006193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1007193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1008193267Sjkim Current Release: 1009193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1010193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1011193267Sjkim 1012193267Sjkim---------------------------------------- 1013193267Sjkim29 August 2008. Summary of changes for version 20080829: 1014193267Sjkim 1015193267Sjkim1) ACPI CA Core Subsystem: 1016193267Sjkim 1017193267SjkimCompleted a major cleanup of the internal ACPI_OPERAND_OBJECT of type 1018193267SjkimReference. Changes include the elimination of cheating on the Object field 1019193267Sjkimfor the DdbHandle subtype, addition of a reference class field to 1020193267Sjkimdifferentiate the various reference types (instead of an AML opcode), and the 1021193267Sjkimcleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723 1022193267Sjkim 1023193267SjkimReduce an error to a warning for an incorrect method argument count. 1024193267SjkimPreviously aborted with an error if too few arguments were passed to a 1025193267Sjkimcontrol method via the external ACPICA interface. Now issue a warning instead 1026193267Sjkimand continue. Handles the case where the method inadvertently declares too 1027193267Sjkimmany arguments, but does not actually use the extra ones. Applies mainly to 1028193267Sjkimthe predefined methods. Lin Ming. Linux BZ 11032. 1029193267Sjkim 1030193267SjkimDisallow the evaluation of named object types with no intrinsic value. Return 1031193267SjkimAE_TYPE for objects that have no value and therefore evaluation is undefined: 1032193267SjkimDevice, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of 1033193267Sjkimthese types were allowed, but an exception would be generated at some point 1034193267Sjkimduring the evaluation. Now, the error is generated up front. 1035193267Sjkim 1036193267SjkimFixed a possible memory leak in the AcpiNsGetExternalPathname function 1037193267Sjkim(nsnames.c). Fixes a leak in the error exit path. 1038193267Sjkim 1039193267SjkimRemoved the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug 1040193267Sjkimlevels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION 1041193267Sjkiminterfaces. Also added ACPI_DB_EVENTS to correspond with the existing 1042193267SjkimACPI_LV_EVENTS. 1043193267Sjkim 1044193267SjkimRemoved obsolete and/or unused exception codes from the acexcep.h header. 1045193267SjkimThere is the possibility that certain device drivers may be affected if they 1046193267Sjkimuse any of these exceptions. 1047193267Sjkim 1048193267SjkimThe ACPICA documentation has been added to the public git source tree, under 1049193267Sjkimacpica/documents. Included are the ACPICA programmer reference, the iASL 1050193267Sjkimcompiler reference, and the changes.txt release logfile. 1051193267Sjkim 1052193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1053193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1054193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1055193267Sjkimmuch larger code and data size. 1056193267Sjkim 1057193267Sjkim Previous Release: 1058193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1059193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1060193267Sjkim Current Release: 1061193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1062193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1063193267Sjkim 1064193267Sjkim2) iASL Compiler/Disassembler and Tools: 1065193267Sjkim 1066193267SjkimAllow multiple argument counts for the predefined _SCP method. ACPI 3.0 1067193267Sjkimdefines _SCP with 3 arguments. Previous versions defined it with only 1 1068193267Sjkimargument. iASL now allows both definitions. 1069193267Sjkim 1070193267SjkimiASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero- 1071193267Sjkimlength subtables when disassembling ACPI tables. Also fixed a couple of 1072193267Sjkimerrors where a full 16-bit table type field was not extracted from the input 1073193267Sjkimproperly. 1074193267Sjkim 1075193267Sjkimacpisrc: Improve comment counting mechanism for generating source code 1076193267Sjkimstatistics. Count first and last lines of multi-line comments as whitespace, 1077193267Sjkimnot comment lines. Handle Linux legal header in addition to standard acpica 1078193267Sjkimheader. 1079193267Sjkim 1080193267Sjkim---------------------------------------- 1081193267Sjkim 1082193267Sjkim29 July 2008. Summary of changes for version 20080729: 1083193267Sjkim 1084193267Sjkim1) ACPI CA Core Subsystem: 1085193267Sjkim 1086193267SjkimFix a possible deadlock in the GPE dispatch. Remove call to 1087193267SjkimAcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt 1088193267Sjkimto acquire the GPE lock but can deadlock since the GPE lock is already held 1089193267Sjkimat dispatch time. This code was introduced in version 20060831 as a response 1090193267Sjkimto Linux BZ 6881 and has since been removed from Linux. 1091193267Sjkim 1092193267SjkimAdd a function to dereference returned reference objects. Examines the return 1093193267Sjkimobject from a call to AcpiEvaluateObject. Any Index or RefOf references are 1094193267Sjkimautomatically dereferenced in an attempt to return something useful (these 1095193267Sjkimreference types cannot be converted into an external ACPI_OBJECT.) Provides 1096193267SjkimMS compatibility. Lin Ming, Bob Moore. Linux BZ 11105 1097193267Sjkim 1098193267Sjkimx2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new 1099193267Sjkimsubtables for the MADT and one new subtable for the SRAT. Includes 1100193267Sjkimdisassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC 1101193267SjkimSpecification, June 2008. 1102193267Sjkim 1103193267SjkimAdditional error checking for pathname utilities. Add error check after all 1104193267Sjkimcalls to AcpiNsGetPathnameLength. Add status return from 1105193267SjkimAcpiNsBuildExternalPath and check after all calls. Add parameter validation 1106193267Sjkimto AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar. 1107193267Sjkim 1108193267SjkimReturn status from the global init function AcpiUtGlobalInitialize. This is 1109193267Sjkimused by both the kernel subsystem and the utilities such as iASL compiler. 1110193267SjkimThe function could possibly fail when the caches are initialized. Yang Yi. 1111193267Sjkim 1112193267SjkimAdd a function to decode reference object types to strings. Created for 1113193267Sjkimimproved error messages. 1114193267Sjkim 1115193267SjkimImprove object conversion error messages. Better error messages during object 1116193267Sjkimconversion from internal to the external ACPI_OBJECT. Used for external calls 1117193267Sjkimto AcpiEvaluateObject. 1118193267Sjkim 1119193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1120193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1121193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1122193267Sjkimmuch larger code and data size. 1123193267Sjkim 1124193267Sjkim Previous Release: 1125193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1126193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1127193267Sjkim Current Release: 1128193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1129193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1130193267Sjkim 1131193267Sjkim2) iASL Compiler/Disassembler and Tools: 1132193267Sjkim 1133193267SjkimDebugger: fix a possible hang when evaluating non-methods. Fixes a problem 1134193267Sjkimintroduced in version 20080701. If the object being evaluated (via execute 1135193267Sjkimcommand) is not a method, the debugger can hang while trying to obtain non- 1136193267Sjkimexistent parameters. 1137193267Sjkim 1138193267SjkimiASL: relax error for using reserved "_T_x" identifiers. These names can 1139193267Sjkimappear in a disassembled ASL file if they were emitted by the original 1140193267Sjkimcompiler. Instead of issuing an error or warning and forcing the user to 1141193267Sjkimmanually change these names, issue a remark instead. 1142193267Sjkim 1143193267SjkimiASL: error if named object created in while loop. Emit an error if any named 1144193267Sjkimobject is created within a While loop. If allowed, this code will generate a 1145193267Sjkimrun-time error on the second iteration of the loop when an attempt is made to 1146193267Sjkimcreate the same named object twice. ACPICA bugzilla 730. 1147193267Sjkim 1148193267SjkimiASL: Support absolute pathnames for include files. Add support for absolute 1149193267Sjkimpathnames within the Include operator. previously, only relative pathnames 1150193267Sjkimwere supported. 1151193267Sjkim 1152193267SjkimiASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor. 1153193267SjkimThe ACPI spec requires one interrupt minimum. BZ 423 1154193267Sjkim 1155193267SjkimiASL: Handle a missing ResourceSource arg, with a present SourceIndex. 1156193267SjkimHandles the case for the Interrupt Resource Descriptor where 1157193267Sjkimthe ResourceSource argument is omitted but ResourceSourceIndex 1158193267Sjkimis present. Now leave room for the Index. BZ 426 1159193267Sjkim 1160193267SjkimiASL: Prevent error message if CondRefOf target does not exist. Fixes cases 1161193267Sjkimwhere an error message is emitted if the target does not exist. BZ 516 1162193267Sjkim 1163193267SjkimiASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option 1164193267Sjkim(get ACPI tables on Windows). This was apparently broken in version 20070919. 1165193267Sjkim 1166193267SjkimAcpiXtract: Handle EOF while extracting data. Correctly handle the case where 1167193267Sjkimthe EOF happens immediately after the last table in the input file. Print 1168193267Sjkimcompletion message. Previously, no message was displayed in this case. 1169193267Sjkim 1170193267Sjkim---------------------------------------- 1171193267Sjkim01 July 2008. Summary of changes for version 20080701: 1172193267Sjkim 1173193267Sjkim0) Git source tree / acpica.org 1174193267Sjkim 1175193267SjkimFixed a problem where a git-clone from http would not transfer the entire 1176193267Sjkimsource tree. 1177193267Sjkim 1178193267Sjkim1) ACPI CA Core Subsystem: 1179193267Sjkim 1180193267SjkimImplemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one 1181193267Sjkimenable bit. Now performs a read-change-write of the enable register instead 1182193267Sjkimof simply writing out the cached enable mask. This will prevent inadvertent 1183193267Sjkimenabling of GPEs if a rogue GPE is received during initialization (before GPE 1184193267Sjkimhandlers are installed.) 1185193267Sjkim 1186193267SjkimImplemented a copy for dynamically loaded tables. Previously, dynamically 1187193267Sjkimloaded tables were simply mapped - but on some machines this memory is 1188193267Sjkimcorrupted after suspend. Now copy the table to a local buffer. For the 1189193267SjkimOpRegion case, added checksum verify. Use the table length from the table 1190193267Sjkimheader, not the region length. For the Buffer case, use the table length 1191193267Sjkimalso. Dennis Noordsij, Bob Moore. BZ 10734 1192193267Sjkim 1193193267SjkimFixed a problem where the same ACPI table could not be dynamically loaded and 1194193267Sjkimunloaded more than once. Without this change, a table cannot be loaded again 1195193267Sjkimonce it has been loaded/unloaded one time. The current mechanism does not 1196193267Sjkimunregister a table upon an unload. During a load, if the same table is found, 1197193267Sjkimthis no longer returns an exception. BZ 722 1198193267Sjkim 1199193267SjkimFixed a problem where the wrong descriptor length was calculated for the 1200193267SjkimEndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag 1201193267Sjkimare calculated as 12 bytes long, but the actual length in the internal 1202193267Sjkimdescriptor is 16 because of the round-up to 8 on the 64-bit build. Reported 1203193267Sjkimby Linn Crosetto. BZ 728 1204193267Sjkim 1205193267SjkimFixed a possible memory leak in the Unload operator. The DdbHandle returned 1206193267Sjkimby Load() did not have its reference count decremented during unload, leading 1207193267Sjkimto a memory leak. Lin Ming. BZ 727 1208193267Sjkim 1209193267SjkimFixed a possible memory leak when deleting thermal/processor objects. Any 1210193267Sjkimassociated notify handlers (and objects) were not being deleted. Fiodor 1211193267SjkimSuietov. BZ 506 1212193267Sjkim 1213193267SjkimFixed the ordering of the ASCII names in the global mutex table to match the 1214193267Sjkimactual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only. 1215193267SjkimVegard Nossum. BZ 726 1216193267Sjkim 1217193267SjkimEnhanced the AcpiGetObjectInfo interface to return the number of required 1218193267Sjkimarguments if the object is a control method. Added this call to the debugger 1219193267Sjkimso the proper number of default arguments are passed to a method. This 1220193267Sjkimprevents a warning when executing methods from AcpiExec. 1221193267Sjkim 1222193267SjkimAdded a check for an invalid handle in AcpiGetObjectInfo. Return 1223193267SjkimAE_BAD_PARAMETER if input handle is invalid. BZ 474 1224193267Sjkim 1225193267SjkimFixed an extraneous warning from exconfig.c on the 64-bit build. 1226193267Sjkim 1227193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1228193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1229193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1230193267Sjkimmuch larger code and data size. 1231193267Sjkim 1232193267Sjkim Previous Release: 1233193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1234193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1235193267Sjkim Current Release: 1236193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1237193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1238193267Sjkim 1239193267Sjkim2) iASL Compiler/Disassembler and Tools: 1240193267Sjkim 1241193267SjkimiASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both 1242193267Sjkimresource descriptor names. 1243193267Sjkim 1244193267SjkimiASL: Detect invalid ASCII characters in input (windows version). Removed the 1245193267Sjkim"-CF" flag from the flex compile, enables correct detection of non-ASCII 1246193267Sjkimcharacters in the input. BZ 441 1247193267Sjkim 1248193267SjkimiASL: Eliminate warning when result of LoadTable is not used. Eliminate the 1249193267Sjkim"result of operation not used" warning when the DDB handle returned from 1250193267SjkimLoadTable is not used. The warning is not needed. BZ 590 1251193267Sjkim 1252193267SjkimAcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to 1253193267Sjkimpass address of table to the AML. Added option to disable OpRegion simulation 1254193267Sjkimto allow creation of an OpRegion with a real address that was passed to _CFG. 1255193267SjkimAll of this allows testing of the Load and Unload operators from AcpiExec. 1256193267Sjkim 1257193267SjkimDebugger: update tables command for unloaded tables. Handle unloaded tables 1258193267Sjkimand use the standard table header output routine. 1259193267Sjkim 1260193267Sjkim---------------------------------------- 1261193267Sjkim09 June 2008. Summary of changes for version 20080609: 1262193267Sjkim 1263193267Sjkim1) ACPI CA Core Subsystem: 1264193267Sjkim 1265193267SjkimImplemented a workaround for reversed _PRT entries. A significant number of 1266193267SjkimBIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This 1267193267Sjkimchange dynamically detects and repairs this problem. Provides compatibility 1268193267Sjkimwith MS ACPI. BZ 6859 1269193267Sjkim 1270193267SjkimSimplified the internal ACPI hardware interfaces to eliminate the locking 1271193267Sjkimflag parameter from Register Read/Write. Added a new external interface, 1272193267SjkimAcpiGetRegisterUnlocked. 1273193267Sjkim 1274193267SjkimFixed a problem where the invocation of a GPE control method could hang. This 1275193267Sjkimwas a regression introduced in 20080514. The new method argument count 1276193267Sjkimvalidation mechanism can enter an infinite loop when a GPE method is 1277193267Sjkimdispatched. Problem fixed by removing the obsolete code that passed GPE block 1278193267Sjkiminformation to the notify handler via the control method parameter pointer. 1279193267Sjkim 1280193267SjkimFixed a problem where the _SST execution status was incorrectly returned to 1281193267Sjkimthe caller of AcpiEnterSleepStatePrep. This was a regression introduced in 1282193267Sjkim20080514. _SST is optional and a NOT_FOUND exception should never be 1283193267Sjkimreturned. BZ 716 1284193267Sjkim 1285193267SjkimFixed a problem where a deleted object could be accessed from within the AML 1286193267Sjkimparser. This was a regression introduced in version 20080123 as a fix for the 1287193267SjkimUnload operator. Lin Ming. BZ 10669 1288193267Sjkim 1289193267SjkimCleaned up the debug operand dump mechanism. Eliminated unnecessary operands 1290193267Sjkimand eliminated the use of a negative index in a loop. Operands are now 1291193267Sjkimdisplayed in the correct order, not backwards. This also fixes a regression 1292193267Sjkimintroduced in 20080514 on 64-bit systems where the elimination of 1293193267SjkimACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715 1294193267Sjkim 1295193267SjkimFixed a possible memory leak in EvPciConfigRegionSetup where the error exit 1296193267Sjkimpath did not delete a locally allocated structure. 1297193267Sjkim 1298193267SjkimUpdated definitions for the DMAR and SRAT tables to synchronize with the 1299193267Sjkimcurrent specifications. Includes disassembler support. 1300193267Sjkim 1301193267SjkimFixed a problem in the mutex debug code (in utmutex.c) where an incorrect 1302193267Sjkimloop termination value was used. Loop terminated on iteration early, missing 1303193267Sjkimone mutex. Linn Crosetto 1304193267Sjkim 1305193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1306193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1307193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1308193267Sjkimmuch larger code and data size. 1309193267Sjkim 1310193267Sjkim Previous Release: 1311193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1312193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1313193267Sjkim Current Release: 1314193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1315193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1316193267Sjkim 1317193267Sjkim2) iASL Compiler/Disassembler and Tools: 1318193267Sjkim 1319193267SjkimDisassembler: Implemented support for EisaId() within _CID objects. Now 1320193267Sjkimdisassemble integer _CID objects back to EisaId invocations, including 1321193267Sjkimmultiple integers within _CID packages. Includes single-step support for 1322193267Sjkimdebugger also. 1323193267Sjkim 1324193267SjkimDisassembler: Added support for DMAR and SRAT table definition changes. 1325193267Sjkim 1326193267Sjkim---------------------------------------- 1327193267Sjkim14 May 2008. Summary of changes for version 20080514: 1328193267Sjkim 1329193267Sjkim1) ACPI CA Core Subsystem: 1330193267Sjkim 1331193267SjkimFixed a problem where GPEs were enabled too early during the ACPICA 1332193267Sjkiminitialization. This could lead to "handler not installed" errors on some 1333193267Sjkimmachines. Moved GPE enable until after _REG/_STA/_INI methods are run. This 1334193267Sjkimensures that all operation regions and devices throughout the namespace have 1335193267Sjkimbeen initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916. 1336193267Sjkim 1337193267SjkimImplemented a change to the enter sleep code. Moved execution of the _GTS 1338193267Sjkimmethod to just before setting sleep enable bit. The execution was moved from 1339193267SjkimAcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed 1340193267Sjkimimmediately before the SLP_EN bit is set, as per the ACPI specification. 1341193267SjkimLuming Yu, BZ 1653. 1342193267Sjkim 1343193267SjkimImplemented a fix to disable unknown GPEs (2nd version). Now always disable 1344193267Sjkimthe GPE, even if ACPICA thinks that that it is already disabled. It is 1345193267Sjkimpossible that the AML or some other code has enabled the GPE unbeknownst to 1346193267Sjkimthe ACPICA code. 1347193267Sjkim 1348193267SjkimFixed a problem with the Field operator where zero-length fields would return 1349193267Sjkiman AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL 1350193267Sjkimfield declarations in Field(), BankField(), and IndexField(). BZ 10606. 1351193267Sjkim 1352193267SjkimImplemented a fix for the Load operator, now load the table at the namespace 1353193267Sjkimroot. This reverts a change introduced in version 20071019. The table is now 1354193267Sjkimloaded at the namespace root even though this goes against the ACPI 1355193267Sjkimspecification. This provides compatibility with other ACPI implementations. 1356193267SjkimThe ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming. 1357193267Sjkim 1358193267SjkimFixed a problem where ACPICA would not Load() tables with unusual signatures. 1359193267SjkimNow ignore ACPI table signature for Load() operator. Only "SSDT" is 1360193267Sjkimacceptable to the ACPI spec, but tables are seen with OEMx and null sigs. 1361193267SjkimTherefore, signature validation is worthless. Apparently MS ACPI accepts such 1362193267Sjkimsignatures, ACPICA must be compatible. BZ 10454. 1363193267Sjkim 1364193267SjkimFixed a possible negative array index in AcpiUtValidateException. Added NULL 1365193267Sjkimfields to the exception string arrays to eliminate a -1 subtraction on the 1366193267SjkimSubStatus field. 1367193267Sjkim 1368193267SjkimUpdated the debug tracking macros to reduce overall code and data size. 1369193267SjkimChanged ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings 1370193267Sjkiminstead of pointers to static strings. Jan Beulich and Bob Moore. 1371193267Sjkim 1372193267SjkimImplemented argument count checking in control method invocation via 1373193267SjkimAcpiEvaluateObject. Now emit an error if too few arguments, warning if too 1374193267Sjkimmany. This applies only to extern programmatic control method execution, not 1375193267Sjkimmethod-to-method calls within the AML. Lin Ming. 1376193267Sjkim 1377193267SjkimEliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no 1378193267Sjkimlonger needed, especially with the removal of 16-bit support. It was replaced 1379193267Sjkimmostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on 1380193267Sjkim32/64-bit platforms is required. 1381193267Sjkim 1382193267SjkimAdded the C const qualifier for appropriate string constants -- mostly 1383193267SjkimMODULE_NAME and printf format strings. Jan Beulich. 1384193267Sjkim 1385193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1386193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1387193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1388193267Sjkimmuch larger code and data size. 1389193267Sjkim 1390193267Sjkim Previous Release: 1391193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1392193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1393193267Sjkim Current Release: 1394193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1395193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1396193267Sjkim 1397193267Sjkim2) iASL Compiler/Disassembler and Tools: 1398193267Sjkim 1399193267SjkimImplemented ACPI table revision ID validation in the disassembler. Zero is 1400193267Sjkimalways invalid. For DSDTs, the ID controls the interpreter integer width. 1 1401193267Sjkimmeans 32-bit and this is unusual. 2 or greater is 64-bit. 1402193267Sjkim 1403193267Sjkim---------------------------------------- 1404193267Sjkim21 March 2008. Summary of changes for version 20080321: 1405193267Sjkim 1406193267Sjkim1) ACPI CA Core Subsystem: 1407193267Sjkim 1408193267SjkimImplemented an additional change to the GPE support in order to suppress 1409193267Sjkimspurious or stray GPEs. The AcpiEvDisableGpe function will now permanently 1410193267Sjkimdisable incoming GPEs that are neither enabled nor disabled -- meaning that 1411193267Sjkimthe GPE is unknown to the system. This should prevent future interrupt floods 1412193267Sjkimfrom that GPE. BZ 6217 (Zhang Rui) 1413193267Sjkim 1414193267SjkimFixed a problem where NULL package elements were not returned to the 1415193267SjkimAcpiEvaluateObject interface correctly. The element was simply ignored 1416193267Sjkiminstead of returning a NULL ACPI_OBJECT package element, potentially causing 1417193267Sjkima buffer overflow and/or confusing the caller who expected a fixed number of 1418193267Sjkimelements. BZ 10132 (Lin Ming, Bob Moore) 1419193267Sjkim 1420193267SjkimFixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword, 1421193267SjkimQword), Field, BankField, and IndexField operators when invoked from inside 1422193267Sjkiman executing control method. In this case, these operators created namespace 1423193267Sjkimnodes that were incorrectly left marked as permanent nodes instead of 1424193267Sjkimtemporary nodes. This could cause a problem if there is race condition 1425193267Sjkimbetween an exiting control method and a running namespace walk. (Reported by 1426193267SjkimLinn Crosetto) 1427193267Sjkim 1428193267SjkimFixed a problem where the CreateField and CreateXXXField operators would 1429193267Sjkimincorrectly allow duplicate names (the name of the field) with no exception 1430193267Sjkimgenerated. 1431193267Sjkim 1432193267SjkimImplemented several changes for Notify handling. Added support for new Notify 1433193267Sjkimvalues (ACPI 2.0+) and improved the Notify debug output. Notify on 1434193267SjkimPowerResource objects is no longer allowed, as per the ACPI specification. 1435193267Sjkim(Bob Moore, Zhang Rui) 1436193267Sjkim 1437193267SjkimAll Reference Objects returned via the AcpiEvaluateObject interface are now 1438193267Sjkimmarked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for 1439193267SjkimNULL objects - either NULL package elements or unresolved named references. 1440193267Sjkim 1441193267SjkimFixed a problem where an extraneous debug message was produced for package 1442193267Sjkimobjects (when debugging enabled). The message "Package List length larger 1443193267Sjkimthan NumElements count" is now produced in the correct case, and is now an 1444193267Sjkimerror message rather than a debug message. Added a debug message for the 1445193267Sjkimopposite case, where NumElements is larger than the Package List (the package 1446193267Sjkimwill be padded out with NULL elements as per the ACPI spec.) 1447193267Sjkim 1448193267SjkimImplemented several improvements for the output of the ASL "Debug" object to 1449193267Sjkimclarify and keep all data for a given object on one output line. 1450193267Sjkim 1451193267SjkimFixed two size calculation issues with the variable-length Start Dependent 1452193267Sjkimresource descriptor. 1453193267Sjkim 1454193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1455193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1456193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1457193267Sjkima much larger code and data size. 1458193267Sjkim 1459193267Sjkim Previous Release: 1460193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 1461193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 1462193267Sjkim Current Release: 1463193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1464193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1465193267Sjkim 1466193267Sjkim2) iASL Compiler/Disassembler and Tools: 1467193267Sjkim 1468193267SjkimFixed a problem with the use of the Switch operator where execution of the 1469193267Sjkimcontaining method by multiple concurrent threads could cause an 1470193267SjkimAE_ALREADY_EXISTS exception. This is caused by the fact that there is no 1471193267Sjkimactual Switch opcode, it must be simulated with local named temporary 1472193267Sjkimvariables and if/else pairs. The solution chosen was to mark any method that 1473193267Sjkimuses Switch as Serialized, thus preventing multiple thread entries. BZ 469. 1474193267Sjkim 1475193267Sjkim---------------------------------------- 1476193267Sjkim13 February 2008. Summary of changes for version 20080213: 1477193267Sjkim 1478193267Sjkim1) ACPI CA Core Subsystem: 1479193267Sjkim 1480193267SjkimImplemented another MS compatibility design change for GPE/Notify handling. 1481193267SjkimGPEs are now cleared/enabled asynchronously to allow all pending notifies to 1482193267Sjkimcomplete first. It is expected that the OSL will queue the enable request 1483193267Sjkimbehind all pending notify requests (may require changes to the local host OSL 1484193267Sjkimin AcpiOsExecute). Alexey Starikovskiy. 1485193267Sjkim 1486193267SjkimFixed a problem where buffer and package objects passed as arguments to a 1487193267Sjkimcontrol method via the external AcpiEvaluateObject interface could cause an 1488193267SjkimAE_AML_INTERNAL exception depending on the order and type of operators 1489193267Sjkimexecuted by the target control method. 1490193267Sjkim 1491193267SjkimFixed a problem where resource descriptor size optimization could cause a 1492193267Sjkimproblem when a _CRS resource template is passed to a _SRS method. The _SRS 1493193267Sjkimresource template must use the same descriptors (with the same size) as 1494193267Sjkimreturned from _CRS. This change affects the following resource descriptors: 1495193267SjkimIRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487) 1496193267Sjkim 1497193267SjkimFixed a problem where a CopyObject to RegionField, BankField, and IndexField 1498193267Sjkimobjects did not perform an implicit conversion as it should. These types must 1499193267Sjkimretain their initial type permanently as per the ACPI specification. However, 1500193267Sjkima CopyObject to all other object types should not perform an implicit 1501193267Sjkimconversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388 1502193267Sjkim 1503193267SjkimFixed a problem with the AcpiGetDevices interface where the mechanism to 1504193267Sjkimmatch device CIDs did not examine the entire list of available CIDs, but 1505193267Sjkiminstead aborted on the first non-matching CID. Andrew Patterson. 1506193267Sjkim 1507193267SjkimFixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was 1508193267Sjkiminadvertently changed to return a 16-bit value instead of a 32-bit value, 1509193267Sjkimtruncating the upper dword of a 64-bit value. This macro is only used to 1510193267Sjkimdisplay debug output, so no incorrect calculations were made. Also, 1511193267Sjkimreimplemented the macro so that a 64-bit shift is not performed by 1512193267Sjkiminefficient compilers. 1513193267Sjkim 1514193267SjkimAdded missing va_end statements that should correspond with each va_start 1515193267Sjkimstatement. 1516193267Sjkim 1517193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1518193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1519193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1520193267Sjkima much larger code and data size. 1521193267Sjkim 1522193267Sjkim Previous Release: 1523193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 1524193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 1525193267Sjkim Current Release: 1526193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 1527193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 1528193267Sjkim 1529193267Sjkim2) iASL Compiler/Disassembler and Tools: 1530193267Sjkim 1531193267SjkimImplemented full disassembler support for the following new ACPI tables: 1532193267SjkimBERT, EINJ, and ERST. Implemented partial disassembler support for the 1533193267Sjkimcomplicated HEST table. These tables support the Windows Hardware Error 1534193267SjkimArchitecture (WHEA). 1535193267Sjkim 1536193267Sjkim---------------------------------------- 1537193267Sjkim23 January 2008. Summary of changes for version 20080123: 1538193267Sjkim 1539193267Sjkim1) ACPI CA Core Subsystem: 1540193267Sjkim 1541193267SjkimAdded the 2008 copyright to all module headers and signons. This affects 1542193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1543193267Sjkimthe tools/utilities. 1544193267Sjkim 1545193267SjkimFixed a problem with the SizeOf operator when used with Package and Buffer 1546193267Sjkimobjects. These objects have deferred execution for some arguments, and the 1547193267Sjkimexecution is now completed before the SizeOf is executed. This problem caused 1548193267Sjkimunexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ 1549193267Sjkim9558 1550193267Sjkim 1551193267SjkimImplemented an enhancement to the interpreter "slack mode". In the absence of 1552193267Sjkiman explicit return or an implicitly returned object from the last executed 1553193267Sjkimopcode, a control method will now implicitly return an integer of value 0 for 1554193267SjkimMicrosoft compatibility. (Lin Ming) BZ 392 1555193267Sjkim 1556193267SjkimFixed a problem with the Load operator where an exception was not returned in 1557193267Sjkimthe case where the table is already loaded. (Lin Ming) BZ 463 1558193267Sjkim 1559193267SjkimImplemented support for the use of DDBHandles as an Indexed Reference, as per 1560193267Sjkimthe ACPI spec. (Lin Ming) BZ 486 1561193267Sjkim 1562193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 1563193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 1564193267Sjkim 1565193267SjkimFixed a problem with the LoadTable operator where the OemId and OemTableId 1566193267Sjkiminput strings could cause unexpected failures if they were shorter than the 1567193267Sjkimmaximum lengths allowed. (Lin Ming, Bob Moore) BZ 576 1568193267Sjkim 1569193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 1570193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 1571193267Sjkim 1572193267SjkimImplemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST, 1573193267SjkimIBFT, UEFI, WDAT. Disassembler support is forthcoming. 1574193267Sjkim 1575193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1576193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1577193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1578193267Sjkima much larger code and data size. 1579193267Sjkim 1580193267Sjkim Previous Release: 1581193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 1582193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 1583193267Sjkim Current Release: 1584193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 1585193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 1586193267Sjkim 1587193267Sjkim2) iASL Compiler/Disassembler and Tools: 1588193267Sjkim 1589193267SjkimImplemented support in the disassembler for checksum validation on incoming 1590193267Sjkimbinary DSDTs and SSDTs. If incorrect, a message is displayed within the table 1591193267Sjkimheader dump at the start of the disassembly. 1592193267Sjkim 1593193267SjkimImplemented additional debugging information in the namespace listing file 1594193267Sjkimcreated during compilation. In addition to the namespace hierarchy, the full 1595193267Sjkimpathname to each namespace object is displayed. 1596193267Sjkim 1597193267SjkimFixed a problem with the disassembler where invalid ACPI tables could cause 1598193267Sjkimfaults or infinite loops. 1599193267Sjkim 1600193267SjkimFixed an unexpected parse error when using the optional "parameter types" 1601193267Sjkimlist in a control method declaration. (Lin Ming) BZ 397 1602193267Sjkim 1603193267SjkimFixed a problem where two External declarations with the same name did not 1604193267Sjkimcause an error (Lin Ming) BZ 509 1605193267Sjkim 1606193267SjkimImplemented support for full TermArgs (adding Argx, Localx and method 1607193267Sjkiminvocation) for the ParameterData parameter to the LoadTable operator. (Lin 1608193267SjkimMing) BZ 583,587 1609193267Sjkim 1610193267Sjkim---------------------------------------- 1611193267Sjkim19 December 2007. Summary of changes for version 20071219: 1612193267Sjkim 1613193267Sjkim1) ACPI CA Core Subsystem: 1614193267Sjkim 1615193267SjkimImplemented full support for deferred execution for the TermArg string 1616193267Sjkimarguments for DataTableRegion. This enables forward references and full 1617193267Sjkimoperand resolution for the three string arguments. Similar to OperationRegion 1618193267Sjkimdeferred argument execution.) Lin Ming. BZ 430 1619193267Sjkim 1620193267SjkimImplemented full argument resolution support for the BankValue argument to 1621193267SjkimBankField. Previously, only constants were supported, now any TermArg may be 1622193267Sjkimused. Lin Ming BZ 387, 393 1623193267Sjkim 1624193267SjkimFixed a problem with AcpiGetDevices where the search of a branch of the 1625193267Sjkimdevice tree could be terminated prematurely. In accordance with the ACPI 1626193267Sjkimspecification, the search down the current branch is terminated if a device 1627193267Sjkimis both not present and not functional (instead of just not present.) Yakui 1628193267SjkimZhao. 1629193267Sjkim 1630193267SjkimFixed a problem where "unknown" GPEs could be allowed to fire repeatedly if 1631193267Sjkimthe underlying AML code changed the GPE enable registers. Now, any unknown 1632193267Sjkimincoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled 1633193267Sjkiminstead of simply ignored. Rui Zhang. 1634193267Sjkim 1635193267SjkimFixed a problem with Index Fields where the Index register was incorrectly 1636193267Sjkimlimited to a maximum of 32 bits. Now any size may be used. 1637193267Sjkim 1638193267SjkimFixed a couple memory leaks associated with "implicit return" objects when 1639193267Sjkimthe AML Interpreter slack mode is enabled. Lin Ming BZ 349 1640193267Sjkim 1641193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1642193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1643193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1644193267Sjkima much larger code and data size. 1645193267Sjkim 1646193267Sjkim Previous Release: 1647193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 1648193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 1649193267Sjkim Current Release: 1650193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 1651193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 1652193267Sjkim 1653193267Sjkim---------------------------------------- 1654193267Sjkim14 November 2007. Summary of changes for version 20071114: 1655193267Sjkim 1656193267Sjkim1) ACPI CA Core Subsystem: 1657193267Sjkim 1658193267SjkimImplemented event counters for each of the Fixed Events, the ACPI SCI 1659193267Sjkim(interrupt) itself, and control methods executed. Named 1660193267SjkimAcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These 1661193267Sjkimshould be useful for debugging and statistics. 1662193267Sjkim 1663193267SjkimImplemented a new external interface, AcpiGetStatistics, to retrieve the 1664193267Sjkimcontents of the various event counters. Returns the current values for 1665193267SjkimAcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and 1666193267SjkimAcpiMethodCount. The interface can be expanded in the future if new counters 1667193267Sjkimare added. Device drivers should use this interface rather than access the 1668193267Sjkimcounters directly. 1669193267Sjkim 1670193267SjkimFixed a problem with the FromBCD and ToBCD operators. With some compilers, 1671193267Sjkimthe ShortDivide function worked incorrectly, causing problems with the BCD 1672193267Sjkimfunctions with large input values. A truncation from 64-bit to 32-bit 1673193267Sjkiminadvertently occurred. Internal BZ 435. Lin Ming 1674193267Sjkim 1675193267SjkimFixed a problem with Index references passed as method arguments. References 1676193267Sjkimpassed as arguments to control methods were dereferenced immediately (before 1677193267Sjkimcontrol was passed to the called method). The references are now correctly 1678193267Sjkimpassed directly to the called method. BZ 5389. Lin Ming 1679193267Sjkim 1680193267SjkimFixed a problem with CopyObject used in conjunction with the Index operator. 1681193267SjkimThe reference was incorrectly dereferenced before the copy. The reference is 1682193267Sjkimnow correctly copied. BZ 5391. Lin Ming 1683193267Sjkim 1684193267SjkimFixed a problem with Control Method references within Package objects. These 1685193267Sjkimreferences are now correctly generated. This completes the package 1686193267Sjkimconstruction overhaul that began in version 20071019. 1687193267Sjkim 1688193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1689193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1690193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1691193267Sjkima much larger code and data size. 1692193267Sjkim 1693193267Sjkim Previous Release: 1694193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 1695193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 1696193267Sjkim Current Release: 1697193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 1698193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 1699193267Sjkim 1700193267Sjkim 1701193267Sjkim2) iASL Compiler/Disassembler and Tools: 1702193267Sjkim 1703193267SjkimThe AcpiExec utility now installs handlers for all of the predefined 1704193267SjkimOperation Region types. New types supported are: PCI_Config, CMOS, and 1705193267SjkimPCIBARTarget. 1706193267Sjkim 1707193267SjkimFixed a problem with the 64-bit version of AcpiExec where the extended (64- 1708193267Sjkimbit) address fields for the DSDT and FACS within the FADT were not being 1709193267Sjkimused, causing truncation of the upper 32-bits of these addresses. Lin Ming 1710193267Sjkimand Bob Moore 1711193267Sjkim 1712193267Sjkim---------------------------------------- 1713193267Sjkim19 October 2007. Summary of changes for version 20071019: 1714193267Sjkim 1715193267Sjkim1) ACPI CA Core Subsystem: 1716193267Sjkim 1717193267SjkimFixed a problem with the Alias operator when the target of the alias is a 1718193267Sjkimnamed ASL operator that opens a new scope -- Scope, Device, PowerResource, 1719193267SjkimProcessor, and ThermalZone. In these cases, any children of the original 1720193267Sjkimoperator could not be accessed via the alias, potentially causing unexpected 1721193267SjkimAE_NOT_FOUND exceptions. (BZ 9067) 1722193267Sjkim 1723193267SjkimFixed a problem with the Package operator where all named references were 1724193267Sjkimcreated as object references and left otherwise unresolved. According to the 1725193267SjkimACPI specification, a Package can only contain Data Objects or references to 1726193267Sjkimcontrol methods. The implication is that named references to Data Objects 1727193267Sjkim(Integer, Buffer, String, Package, BufferField, Field) should be resolved 1728193267Sjkimimmediately upon package creation. This is the approach taken with this 1729193267Sjkimchange. References to all other named objects (Methods, Devices, Scopes, 1730193267Sjkimetc.) are all now properly created as reference objects. (BZ 5328) 1731193267Sjkim 1732193267SjkimReverted a change to Notify handling that was introduced in version 1733193267Sjkim20070508. This version changed the Notify handling from asynchronous to 1734193267Sjkimfully synchronous (Device driver Notify handling with respect to the Notify 1735193267SjkimASL operator). It was found that this change caused more problems than it 1736193267Sjkimsolved and was removed by most users. 1737193267Sjkim 1738193267SjkimFixed a problem with the Increment and Decrement operators where the type of 1739193267Sjkimthe target object could be unexpectedly and incorrectly changed. (BZ 353) 1740193267SjkimLin Ming. 1741193267Sjkim 1742193267SjkimFixed a problem with the Load and LoadTable operators where the table 1743193267Sjkimlocation within the namespace was ignored. Instead, the table was always 1744193267Sjkimloaded into the root or current scope. Lin Ming. 1745193267Sjkim 1746193267SjkimFixed a problem with the Load operator when loading a table from a buffer 1747193267Sjkimobject. The input buffer was prematurely zeroed and/or deleted. (BZ 577) 1748193267Sjkim 1749193267SjkimFixed a problem with the Debug object where a store of a DdbHandle reference 1750193267Sjkimobject to the Debug object could cause a fault. 1751193267Sjkim 1752193267SjkimAdded a table checksum verification for the Load operator, in the case where 1753193267Sjkimthe load is from a buffer. (BZ 578). 1754193267Sjkim 1755193267SjkimImplemented additional parameter validation for the LoadTable operator. The 1756193267Sjkimlength of the input strings SignatureString, OemIdString, and OemTableId are 1757193267Sjkimnow checked for maximum lengths. (BZ 582) Lin Ming. 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: 78.5K Code, 17.1K Data, 95.6K Total 1766193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 1767193267Sjkim Current Release: 1768193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 1769193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 1770193267Sjkim 1771193267Sjkim 1772193267Sjkim2) iASL Compiler/Disassembler: 1773193267Sjkim 1774193267SjkimFixed a problem where if a single file was specified and the file did not 1775193267Sjkimexist, no error message was emitted. (Introduced with wildcard support in 1776193267Sjkimversion 20070917.) 1777193267Sjkim 1778193267Sjkim---------------------------------------- 1779193267Sjkim19 September 2007. Summary of changes for version 20070919: 1780193267Sjkim 1781193267Sjkim1) ACPI CA Core Subsystem: 1782193267Sjkim 1783193267SjkimDesigned and implemented new external interfaces to install and remove 1784193267Sjkimhandlers for ACPI table-related events. Current events that are defined are 1785193267SjkimLOAD and UNLOAD. These interfaces allow the host to track ACPI tables as 1786193267Sjkimthey are dynamically loaded and unloaded. See AcpiInstallTableHandler and 1787193267SjkimAcpiRemoveTableHandler. (Lin Ming and Bob Moore) 1788193267Sjkim 1789193267SjkimFixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 1790193267Sjkim(acpi_serialized option on Linux) could cause some systems to hang during 1791193267Sjkiminitialization. (Bob Moore) BZ 8171 1792193267Sjkim 1793193267SjkimFixed a problem where objects of certain types (Device, ThermalZone, 1794193267SjkimProcessor, PowerResource) can be not found if they are declared and 1795193267Sjkimreferenced from within the same control method (Lin Ming) BZ 341 1796193267Sjkim 1797193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1798193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1799193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1800193267Sjkima much larger code and data size. 1801193267Sjkim 1802193267Sjkim Previous Release: 1803193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 1804193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 1805193267Sjkim Current Release: 1806193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 1807193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 1808193267Sjkim 1809193267Sjkim 1810193267Sjkim2) iASL Compiler/Disassembler: 1811193267Sjkim 1812193267SjkimImplemented support to allow multiple files to be compiled/disassembled in a 1813193267Sjkimsingle invocation. This includes command line wildcard support for both the 1814193267SjkimWindows and Unix versions of the compiler. This feature simplifies the 1815193267Sjkimdisassembly and compilation of multiple ACPI tables in a single directory. 1816193267Sjkim 1817193267Sjkim---------------------------------------- 1818193267Sjkim08 May 2007. Summary of changes for version 20070508: 1819193267Sjkim 1820193267Sjkim1) ACPI CA Core Subsystem: 1821193267Sjkim 1822193267SjkimImplemented a Microsoft compatibility design change for the handling of the 1823193267SjkimNotify AML operator. Previously, notify handlers were dispatched and 1824193267Sjkimexecuted completely asynchronously in a deferred thread. The new design 1825193267Sjkimstill executes the notify handlers in a different thread, but the original 1826193267Sjkimthread that executed the Notify() now waits at a synchronization point for 1827193267Sjkimthe notify handler to complete. Some machines depend on a synchronous Notify 1828193267Sjkimoperator in order to operate correctly. 1829193267Sjkim 1830193267SjkimImplemented support to allow Package objects to be passed as method 1831193267Sjkimarguments to the external AcpiEvaluateObject interface. Previously, this 1832193267Sjkimwould return the AE_NOT_IMPLEMENTED exception. This feature had not been 1833193267Sjkimimplemented since there were no reserved control methods that required it 1834193267Sjkimuntil recently. 1835193267Sjkim 1836193267SjkimFixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that 1837193267Sjkimcontained invalid non-zero values in reserved fields could cause later 1838193267Sjkimfailures because these fields have meaning in later revisions of the FADT. 1839193267SjkimFor incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields 1840193267Sjkimare: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.) 1841193267Sjkim 1842193267SjkimFixed a problem where the Global Lock handle was not properly updated if a 1843193267Sjkimthread that acquired the Global Lock via executing AML code then attempted 1844193267Sjkimto acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe 1845193267SjkimLiu. 1846193267Sjkim 1847193267SjkimFixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list 1848193267Sjkimcould be corrupted if the interrupt being removed was at the head of the 1849193267Sjkimlist. Reported by Linn Crosetto. 1850193267Sjkim 1851193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1852193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1853193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1854193267Sjkima much larger code and data size. 1855193267Sjkim 1856193267Sjkim Previous Release: 1857193267Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1858193267Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 1859193267Sjkim Current Release: 1860193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 1861193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 1862193267Sjkim 1863193267Sjkim---------------------------------------- 1864167802Sjkim20 March 2007. Summary of changes for version 20070320: 1865167802Sjkim 1866167802Sjkim1) ACPI CA Core Subsystem: 1867167802Sjkim 1868193267SjkimImplemented a change to the order of interpretation and evaluation of AML 1869193267Sjkimoperand objects within the AML interpreter. The interpreter now evaluates 1870193267Sjkimoperands in the order that they appear in the AML stream (and the 1871193267Sjkimcorresponding ASL code), instead of in the reverse order (after the entire 1872193267Sjkimoperand list has been parsed). The previous behavior caused several subtle 1873193267Sjkimincompatibilities with the Microsoft AML interpreter as well as being 1874193267Sjkimsomewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov. 1875167802Sjkim 1876193267SjkimImplemented a change to the ACPI Global Lock support. All interfaces to the 1877193267Sjkimglobal lock now allow the same thread to acquire the lock multiple times. 1878193267SjkimThis affects the AcpiAcquireGlobalLock external interface to the global lock 1879193267Sjkimas well as the internal use of the global lock to support AML fields -- a 1880193267Sjkimcontrol method that is holding the global lock can now simultaneously access 1881193267SjkimAML fields that require global lock protection. Previously, in both cases, 1882193267Sjkimthis would have resulted in an AE_ALREADY_ACQUIRED exception. The change to 1883193267SjkimAcpiAcquireGlobalLock is of special interest to drivers for the Embedded 1884193267SjkimController. There is no change to the behavior of the AML Acquire operator, 1885193267Sjkimas this can already be used to acquire a mutex multiple times by the same 1886193267Sjkimthread. BZ 8066. With assistance from Alexey Starikovskiy. 1887167802Sjkim 1888193267SjkimFixed a problem where invalid objects could be referenced in the AML 1889193267SjkimInterpreter after error conditions. During operand evaluation, ensure that 1890193267Sjkimthe internal "Return Object" field is cleared on error and only valid 1891193267Sjkimpointers are stored there. Caused occasional access to deleted objects that 1892193267Sjkimresulted in "large reference count" warning messages. Valery Podrezov. 1893167802Sjkim 1894193267SjkimFixed a problem where an AE_STACK_OVERFLOW internal exception could occur on 1895193267Sjkimdeeply nested control method invocations. BZ 7873, local BZ 487. Valery 1896193267SjkimPodrezov. 1897167802Sjkim 1898193267SjkimFixed an internal problem with the handling of result objects on the 1899193267Sjkiminterpreter result stack. BZ 7872. Valery Podrezov. 1900167802Sjkim 1901193267SjkimRemoved obsolete code that handled the case where AML_NAME_OP is the target 1902193267Sjkimof a reference (Reference.Opcode). This code was no longer necessary. BZ 1903193267Sjkim7874. Valery Podrezov. 1904167802Sjkim 1905193267SjkimRemoved obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a 1906193267Sjkimremnant from the previously discontinued 16-bit support. 1907167802Sjkim 1908193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1909193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1910193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1911193267Sjkima much larger code and data size. 1912167802Sjkim 1913167802Sjkim Previous Release: 1914167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1915167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1916167802Sjkim Current Release: 1917167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1918167802Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 1919167802Sjkim 1920167802Sjkim---------------------------------------- 1921167802Sjkim26 January 2007. Summary of changes for version 20070126: 1922167802Sjkim 1923167802Sjkim1) ACPI CA Core Subsystem: 1924167802Sjkim 1925193267SjkimAdded the 2007 copyright to all module headers and signons. This affects 1926193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1927193267Sjkimthe utilities. 1928167802Sjkim 1929193267SjkimImplemented a fix for an incorrect parameter passed to AcpiTbDeleteTable 1930193267Sjkimduring a table load. A bad pointer was passed in the case where the DSDT is 1931193267Sjkimoverridden, causing a fault in this case. 1932167802Sjkim 1933193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1934193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1935193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1936193267Sjkima much larger code and data size. 1937167802Sjkim 1938167802Sjkim Previous Release: 1939167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1940167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1941167802Sjkim Current Release: 1942167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1943167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1944167802Sjkim 1945167802Sjkim---------------------------------------- 1946167802Sjkim15 December 2006. Summary of changes for version 20061215: 1947167802Sjkim 1948167802Sjkim1) ACPI CA Core Subsystem: 1949167802Sjkim 1950193267SjkimSupport for 16-bit ACPICA has been completely removed since it is no longer 1951193267Sjkimnecessary and it clutters the code. All 16-bit macros, types, and 1952193267Sjkimconditional compiles have been removed, cleaning up and simplifying the code 1953193267Sjkimacross the entire subsystem. DOS support is no longer needed since the 1954193267Sjkimbootable Linux firmware kit is now available. 1955167802Sjkim 1956193267SjkimThe handler for the Global Lock is now removed during AcpiTerminate to 1957193267Sjkimenable a clean subsystem restart, via the implementation of the 1958193267SjkimAcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz, 1959193267SjkimHP) 1960167802Sjkim 1961193267SjkimImplemented enhancements to the multithreading support within the debugger 1962193267Sjkimto enable improved multithreading debugging and evaluation of the subsystem. 1963167802Sjkim(Valery Podrezov) 1964167802Sjkim 1965193267SjkimDebugger: Enhanced the Statistics/Memory command to emit the total (maximum) 1966193267Sjkimmemory used during the execution, as well as the maximum memory consumed by 1967193267Sjkimeach of the various object types. (Valery Podrezov) 1968167802Sjkim 1969193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1970193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1971193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1972193267Sjkima much larger code and data size. 1973193267Sjkim 1974167802Sjkim Previous Release: 1975167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 1976167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 1977167802Sjkim Current Release: 1978167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1979167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1980167802Sjkim 1981167802Sjkim 1982167802Sjkim2) iASL Compiler/Disassembler and Tools: 1983167802Sjkim 1984193267SjkimAcpiExec: Implemented a new option (-m) to display full memory use 1985193267Sjkimstatistics upon subsystem/program termination. (Valery Podrezov) 1986167802Sjkim 1987167802Sjkim---------------------------------------- 1988167802Sjkim09 November 2006. Summary of changes for version 20061109: 1989167802Sjkim 1990167802Sjkim1) ACPI CA Core Subsystem: 1991167802Sjkim 1992193267SjkimOptimized the Load ASL operator in the case where the source operand is an 1993193267Sjkimoperation region. Simply map the operation region memory, instead of 1994193267Sjkimperforming a bytewise read. (Region must be of type SystemMemory, see 1995193267Sjkimbelow.) 1996167802Sjkim 1997193267SjkimFixed the Load ASL operator for the case where the source operand is a 1998193267Sjkimregion field. A buffer object is also allowed as the source operand. BZ 480 1999167802Sjkim 2000193267SjkimFixed a problem where the Load ASL operator allowed the source operand to be 2001193267Sjkiman operation region of any type. It is now restricted to regions of type 2002193267SjkimSystemMemory, as per the ACPI specification. BZ 481 2003167802Sjkim 2004193267SjkimAdditional cleanup and optimizations for the new Table Manager code. 2005167802Sjkim 2006193267SjkimAcpiEnable will now fail if all of the required ACPI tables are not loaded 2007193267Sjkim(FADT, FACS, DSDT). BZ 477 2008167802Sjkim 2009193267SjkimAdded #pragma pack(8/4) to acobject.h to ensure that the structures in this 2010193267Sjkimheader are always compiled as aligned. The ACPI_OPERAND_OBJECT has been 2011193267Sjkimmanually optimized to be aligned and will not work if it is byte-packed. 2012167802Sjkim 2013193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2014193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2015193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2016193267Sjkima much larger code and data size. 2017167802Sjkim 2018167802Sjkim Previous Release: 2019167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2020167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2021167802Sjkim Current Release: 2022167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2023167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2024167802Sjkim 2025167802Sjkim 2026167802Sjkim2) iASL Compiler/Disassembler and Tools: 2027167802Sjkim 2028193267SjkimFixed a problem where the presence of the _OSI predefined control method 2029193267Sjkimwithin complex expressions could cause an internal compiler error. 2030167802Sjkim 2031193267SjkimAcpiExec: Implemented full region support for multiple address spaces. 2032193267SjkimSpaceId is now part of the REGION object. BZ 429 2033167802Sjkim 2034167802Sjkim---------------------------------------- 2035167802Sjkim11 October 2006. Summary of changes for version 20061011: 2036167802Sjkim 2037167802Sjkim1) ACPI CA Core Subsystem: 2038167802Sjkim 2039193267SjkimCompleted an AML interpreter performance enhancement for control method 2040193267Sjkimexecution. Previously a 2-pass parse/execution, control methods are now 2041193267Sjkimcompletely parsed and executed in a single pass. This improves overall 2042193267Sjkiminterpreter performance by ~25%, reduces code size, and reduces CPU stack 2043193267Sjkimuse. (Valery Podrezov + interpreter changes in version 20051202 that 2044193267Sjkimeliminated namespace loading during the pass one parse.) 2045167802Sjkim 2046193267SjkimImplemented _CID support for PCI Root Bridge detection. If the _HID does not 2047193267Sjkimmatch the predefined PCI Root Bridge IDs, the _CID list (if present) is now 2048193267Sjkimobtained and also checked for an ID match. 2049167802Sjkim 2050193267SjkimImplemented additional support for the PCI _ADR execution: upsearch until a 2051193267Sjkimdevice scope is found before executing _ADR. This allows PCI_Config 2052193267Sjkimoperation regions to be declared locally within control methods underneath 2053193267SjkimPCI device objects. 2054167802Sjkim 2055193267SjkimFixed a problem with a possible race condition between threads executing 2056193267SjkimAcpiWalkNamespace and the AML interpreter. This condition was removed by 2057193267Sjkimmodifying AcpiWalkNamespace to (by default) ignore all temporary namespace 2058193267Sjkimentries created during any concurrent control method execution. An 2059193267Sjkimadditional namespace race condition is known to exist between 2060193267SjkimAcpiWalkNamespace and the Load/Unload ASL operators and is still under 2061193267Sjkiminvestigation. 2062167802Sjkim 2063193267SjkimRestructured the AML ParseLoop function, breaking it into several 2064193267Sjkimsubfunctions in order to reduce CPU stack use and improve maintainability. 2065193267Sjkim(Mikhail Kouzmich) 2066167802Sjkim 2067193267SjkimAcpiGetHandle: Fix for parameter validation to detect invalid combinations 2068193267Sjkimof prefix handle and pathname. BZ 478 2069167802Sjkim 2070193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2071193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2072193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2073193267Sjkima much larger code and data size. 2074167802Sjkim 2075167802Sjkim Previous Release: 2076167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2077167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2078167802Sjkim Current Release: 2079167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2080167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2081167802Sjkim 2082167802Sjkim2) iASL Compiler/Disassembler and Tools: 2083167802Sjkim 2084193267SjkimPorted the -g option (get local ACPI tables) to the new ACPICA Table Manager 2085193267Sjkimto restore original behavior. 2086167802Sjkim 2087167802Sjkim---------------------------------------- 2088167802Sjkim27 September 2006. Summary of changes for version 20060927: 2089167802Sjkim 2090167802Sjkim1) ACPI CA Core Subsystem: 2091167802Sjkim 2092193267SjkimRemoved the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. 2093193267SjkimThese functions now use a spinlock for mutual exclusion and the interrupt 2094193267Sjkimlevel indication flag is not needed. 2095167802Sjkim 2096193267SjkimFixed a problem with the Global Lock where the lock could appear to be 2097193267Sjkimobtained before it is actually obtained. The global lock semaphore was 2098193267Sjkiminadvertently created with one unit instead of zero units. (BZ 464) Fiodor 2099193267SjkimSuietov. 2100167802Sjkim 2101193267SjkimFixed a possible memory leak and fault in AcpiExResolveObjectToValue during 2102193267Sjkima read from a buffer or region field. (BZ 458) Fiodor Suietov. 2103167802Sjkim 2104193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2105193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2106193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2107193267Sjkima much larger code and data size. 2108167802Sjkim 2109167802Sjkim Previous Release: 2110167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2111167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2112167802Sjkim Current Release: 2113167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2114167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2115167802Sjkim 2116167802Sjkim 2117167802Sjkim2) iASL Compiler/Disassembler and Tools: 2118167802Sjkim 2119193267SjkimFixed a compilation problem with the pre-defined Resource Descriptor field 2120193267Sjkimnames where an "object does not exist" error could be incorrectly generated 2121193267Sjkimif the parent ResourceTemplate pathname places the template within a 2122193267Sjkimdifferent namespace scope than the current scope. (BZ 7212) 2123167802Sjkim 2124193267SjkimFixed a problem where the compiler could hang after syntax errors detected 2125193267Sjkimin an ElseIf construct. (BZ 453) 2126167802Sjkim 2127193267SjkimFixed a problem with the AmlFilename parameter to the DefinitionBlock() 2128193267Sjkimoperator. An incorrect output filename was produced when this parameter was 2129193267Sjkima null string (""). Now, the original input filename is used as the AML 2130193267Sjkimoutput filename, with an ".aml" extension. 2131167802Sjkim 2132193267SjkimImplemented a generic batch command mode for the AcpiExec utility (execute 2133193267Sjkimany AML debugger command) (Valery Podrezov). 2134167802Sjkim 2135167802Sjkim---------------------------------------- 2136167802Sjkim12 September 2006. Summary of changes for version 20060912: 2137167802Sjkim 2138167802Sjkim1) ACPI CA Core Subsystem: 2139167802Sjkim 2140193267SjkimEnhanced the implementation of the "serialized mode" of the interpreter 2141193267Sjkim(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 2142193267Sjkimspecified, instead of creating a serialization semaphore per control method, 2143193267Sjkimthe interpreter lock is simply no longer released before a blocking 2144193267Sjkimoperation during control method execution. This effectively makes the AML 2145193267SjkimInterpreter single-threaded. The overhead of a semaphore per-method is 2146193267Sjkimeliminated. 2147167802Sjkim 2148193267SjkimFixed a regression where an error was no longer emitted if a control method 2149193267Sjkimattempts to create 2 objects of the same name. This once again returns 2150193267SjkimAE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that 2151193267Sjkimwill dynamically serialize the control method to possible prevent future 2152193267Sjkimerrors. (BZ 440) 2153167802Sjkim 2154193267SjkimIntegrated a fix for a problem with PCI Express HID detection in the PCI 2155193267SjkimConfig Space setup procedure. (BZ 7145) 2156167802Sjkim 2157193267SjkimMoved all FADT-related functions to a new file, tbfadt.c. Eliminated the 2158193267SjkimAcpiHwInitialize function - the FADT registers are now validated when the 2159193267Sjkimtable is loaded. 2160167802Sjkim 2161193267SjkimAdded two new warnings during FADT verification - 1) if the FADT is larger 2162193267Sjkimthan the largest known FADT version, and 2) if there is a mismatch between a 2163193267Sjkim32-bit block address and the 64-bit X counterpart (when both are non-zero.) 2164167802Sjkim 2165193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2166193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2167193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2168193267Sjkima much larger code and data size. 2169167802Sjkim 2170167802Sjkim Previous Release: 2171167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2172167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2173167802Sjkim Current Release: 2174167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2175167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2176167802Sjkim 2177167802Sjkim 2178167802Sjkim2) iASL Compiler/Disassembler and Tools: 2179167802Sjkim 2180193267SjkimFixed a problem with the implementation of the Switch() operator where the 2181193267Sjkimtemporary variable was declared too close to the actual Switch, instead of 2182193267Sjkimat method level. This could cause a problem if the Switch() operator is 2183193267Sjkimwithin a while loop, causing an error on the second iteration. (BZ 460) 2184167802Sjkim 2185193267SjkimDisassembler - fix for error emitted for unknown type for target of scope 2186193267Sjkimoperator. Now, ignore it and continue. 2187167802Sjkim 2188193267SjkimDisassembly of an FADT now verifies the input FADT and reports any errors 2189193267Sjkimfound. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs. 2190167802Sjkim 2191193267SjkimDisassembly of raw data buffers with byte initialization data now prefixes 2192193267Sjkimeach output line with the current buffer offset. 2193167802Sjkim 2194193267SjkimDisassembly of ASF! table now includes all variable-length data fields at 2195193267Sjkimthe end of some of the subtables. 2196167802Sjkim 2197193267SjkimThe disassembler now emits a comment if a buffer appears to be a 2198193267SjkimResourceTemplate, but cannot be disassembled as such because the EndTag does 2199193267Sjkimnot appear at the very end of the buffer. 2200167802Sjkim 2201193267SjkimAcpiExec - Added the "-t" command line option to enable the serialized mode 2202193267Sjkimof the AML interpreter. 2203167802Sjkim 2204167802Sjkim---------------------------------------- 2205167802Sjkim31 August 2006. Summary of changes for version 20060831: 2206167802Sjkim 2207167802Sjkim1) ACPI CA Core Subsystem: 2208167802Sjkim 2209167802SjkimMiscellaneous fixes for the Table Manager: 2210193267Sjkim- Correctly initialize internal common FADT for all 64-bit "X" fields 2211167802Sjkim- Fixed a couple table mapping issues during table load 2212167802Sjkim- Fixed a couple alignment issues for IA64 2213167802Sjkim- Initialize input array to zero in AcpiInitializeTables 2214193267Sjkim- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader, 2215193267SjkimAcpiGetTableByIndex 2216167802Sjkim 2217193267SjkimChange for GPE support: when a "wake" GPE is received, all wake GPEs are now 2218193267Sjkimimmediately disabled to prevent the waking GPE from firing again and to 2219193267Sjkimprevent other wake GPEs from interrupting the wake process. 2220167802Sjkim 2221193267SjkimAdded the AcpiGpeCount global that tracks the number of processed GPEs, to 2222193267Sjkimbe used for debugging systems with a large number of ACPI interrupts. 2223167802Sjkim 2224193267SjkimImplemented support for the "DMAR" ACPI table (DMA Redirection Table) in 2225193267Sjkimboth the ACPICA headers and the disassembler. 2226167802Sjkim 2227193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2228193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2229193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2230193267Sjkima much larger code and data size. 2231167802Sjkim 2232167802Sjkim Previous Release: 2233167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2234167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2235167802Sjkim Current Release: 2236167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2237167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2238167802Sjkim 2239167802Sjkim 2240167802Sjkim2) iASL Compiler/Disassembler and Tools: 2241167802Sjkim 2242167802SjkimDisassembler support for the DMAR ACPI table. 2243167802Sjkim 2244167802Sjkim---------------------------------------- 2245167802Sjkim23 August 2006. Summary of changes for version 20060823: 2246167802Sjkim 2247167802Sjkim1) ACPI CA Core Subsystem: 2248167802Sjkim 2249193267SjkimThe Table Manager component has been completely redesigned and 2250193267Sjkimreimplemented. The new design is much simpler, and reduces the overall code 2251193267Sjkimand data size of the kernel-resident ACPICA by approximately 5%. Also, it is 2252193267Sjkimnow possible to obtain the ACPI tables very early during kernel 2253193267Sjkiminitialization, even before dynamic memory management is initialized. 2254193267Sjkim(Alexey Starikovskiy, Fiodor Suietov, Bob Moore) 2255167802Sjkim 2256167802SjkimObsolete ACPICA interfaces: 2257167802Sjkim 2258193267Sjkim- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init 2259193267Sjkimtime). 2260167802Sjkim- AcpiLoadTable: Not needed. 2261167802Sjkim- AcpiUnloadTable: Not needed. 2262167802Sjkim 2263167802SjkimNew ACPICA interfaces: 2264167802Sjkim 2265193267Sjkim- AcpiInitializeTables: Must be called before the table manager can be used. 2266193267Sjkim- AcpiReallocateRootTable: Used to transfer the root table to dynamically 2267193267Sjkimallocated memory after it becomes available. 2268193267Sjkim- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables 2269193267Sjkimin the RSDT/XSDT. 2270167802Sjkim 2271167802SjkimOther ACPICA changes: 2272167802Sjkim 2273193267Sjkim- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use 2274193267SjkimAcpiOsUnmapMemory to free this mapping. 2275193267Sjkim- AcpiGetTable returns the actual mapped table. The mapping is managed 2276193267Sjkiminternally and must not be deleted by the caller. Use of this interface 2277193267Sjkimcauses no additional dynamic memory allocation. 2278193267Sjkim- AcpiFindRootPointer: Support for physical addressing has been eliminated, 2279193267Sjkimit appeared to be unused. 2280193267Sjkim- The interface to AcpiOsMapMemory has changed to be consistent with the 2281193267Sjkimother allocation interfaces. 2282193267Sjkim- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary 2283193267Sjkimparameters. 2284193267Sjkim- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64- 2285193267Sjkimbit platforms. Was previously 64 bits on all platforms. 2286193267Sjkim- The interface to the ACPI Global Lock acquire/release macros have changed 2287193267Sjkimslightly since ACPICA no longer keeps a local copy of the FACS with a 2288193267Sjkimconstructed pointer to the actual global lock. 2289167802Sjkim 2290167802SjkimPorting to the new table manager: 2291167802Sjkim 2292193267Sjkim- AcpiInitializeTables: Must be called once, and can be called anytime 2293193267Sjkimduring the OS initialization process. It allows the host to specify an area 2294193267Sjkimof memory to be used to store the internal version of the RSDT/XSDT (root 2295193267Sjkimtable). This allows the host to access ACPI tables before memory management 2296193267Sjkimis initialized and running. 2297193267Sjkim- AcpiReallocateRootTable: Can be called after memory management is running 2298193267Sjkimto copy the root table to a dynamically allocated array, freeing up the 2299193267Sjkimscratch memory specified in the call to AcpiInitializeTables. 2300193267Sjkim- AcpiSubsystemInitialize: This existing interface is independent of the 2301193267SjkimTable Manager, and does not have to be called before the Table Manager can 2302193267Sjkimbe used, it only must be called before the rest of ACPICA can be used. 2303193267Sjkim- ACPI Tables: Some changes have been made to the names and structure of the 2304193267Sjkimactbl.h and actbl1.h header files and may require changes to existing code. 2305193267SjkimFor example, bitfields have been completely removed because of their lack of 2306193267Sjkimportability across C compilers. 2307193267Sjkim- Update interfaces to the Global Lock acquire/release macros if local 2308193267Sjkimversions are used. (see acwin.h) 2309167802Sjkim 2310167802SjkimObsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c 2311167802Sjkim 2312167802SjkimNew files: tbfind.c 2313167802Sjkim 2314193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2315193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2316193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2317193267Sjkima much larger code and data size. 2318167802Sjkim 2319167802Sjkim Previous Release: 2320167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2321167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2322167802Sjkim Current Release: 2323167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2324167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2325167802Sjkim 2326167802Sjkim 2327167802Sjkim2) iASL Compiler/Disassembler and Tools: 2328167802Sjkim 2329167802SjkimNo changes for this release. 2330167802Sjkim 2331167802Sjkim---------------------------------------- 2332167802Sjkim21 July 2006. Summary of changes for version 20060721: 2333167802Sjkim 2334167802Sjkim1) ACPI CA Core Subsystem: 2335167802Sjkim 2336193267SjkimThe full source code for the ASL test suite used to validate the iASL 2337193267Sjkimcompiler and the ACPICA core subsystem is being released with the ACPICA 2338193267Sjkimsource for the first time. The source is contained in a separate package and 2339193267Sjkimconsists of over 1100 files that exercise all ASL/AML operators. The package 2340193267Sjkimshould appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor 2341167802SjkimSuietov) 2342167802Sjkim 2343193267SjkimCompleted a new design and implementation for support of the ACPI Global 2344193267SjkimLock. On the OS side, the global lock is now treated as a standard AML 2345193267Sjkimmutex. Previously, multiple OS threads could "acquire" the global lock 2346193267Sjkimsimultaneously. However, this could cause the BIOS to be starved out of the 2347193267Sjkimlock - especially in cases such as the Embedded Controller driver where 2348193267Sjkimthere is a tight coupling between the OS and the BIOS. 2349167802Sjkim 2350193267SjkimImplemented an optimization for the ACPI Global Lock interrupt mechanism. 2351193267SjkimThe Global Lock interrupt handler no longer queues the execution of a 2352193267Sjkimseparate thread to signal the global lock semaphore. Instead, the semaphore 2353193267Sjkimis signaled directly from the interrupt handler. 2354167802Sjkim 2355193267SjkimImplemented support within the AML interpreter for package objects that 2356193267Sjkimcontain a larger AML length (package list length) than the package element 2357193267Sjkimcount. In this case, the length of the package is truncated to match the 2358193267Sjkimpackage element count. Some BIOS code apparently modifies the package length 2359193267Sjkimon the fly, and this change supports this behavior. Provides compatibility 2360193267Sjkimwith the MS AML interpreter. (With assistance from Fiodor Suietov) 2361167802Sjkim 2362193267SjkimImplemented a temporary fix for the BankValue parameter of a Bank Field to 2363193267Sjkimsupport all constant values, now including the Zero and One opcodes. 2364193267SjkimEvaluation of this parameter must eventually be converted to a full TermArg 2365193267Sjkimevaluation. A not-implemented error is now returned (temporarily) for non- 2366193267Sjkimconstant values for this parameter. 2367167802Sjkim 2368167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2369193267Sjkim- Fix for premature object deletion after CopyObject on Operation Region (BZ 2370193267Sjkim350) 2371167802Sjkim 2372193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2373193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2374193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2375193267Sjkima much larger code and data size. 2376167802Sjkim 2377167802Sjkim Previous Release: 2378167802Sjkim Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total 2379167802Sjkim Debug Version: 160.9K Code, 65.1K Data, 226.0K Total 2380167802Sjkim Current Release: 2381167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2382167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2383167802Sjkim 2384167802Sjkim 2385167802Sjkim2) iASL Compiler/Disassembler and Tools: 2386167802Sjkim 2387167802SjkimNo changes for this release. 2388167802Sjkim 2389167802Sjkim---------------------------------------- 2390167802Sjkim07 July 2006. Summary of changes for version 20060707: 2391167802Sjkim 2392167802Sjkim1) ACPI CA Core Subsystem: 2393167802Sjkim 2394193267SjkimAdded the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers 2395193267Sjkimthat do not allow the initialization of address pointers within packed 2396193267Sjkimstructures - even though the hardware itself may support misaligned 2397193267Sjkimtransfers. Some of the debug data structures are packed by default to 2398193267Sjkimminimize size. 2399167802Sjkim 2400193267SjkimAdded an error message for the case where AcpiOsGetThreadId() returns zero. 2401193267SjkimA non-zero value is required by the core ACPICA code to ensure the proper 2402193267Sjkimoperation of AML mutexes and recursive control methods. 2403167802Sjkim 2404193267SjkimThe DSDT is now the only ACPI table that determines whether the AML 2405193267Sjkiminterpreter is in 32-bit or 64-bit mode. Not really a functional change, but 2406193267Sjkimthe hooks for per-table 32/64 switching have been removed from the code. A 2407193267Sjkimclarification to the ACPI specification is forthcoming in ACPI 3.0B. 2408167802Sjkim 2409193267SjkimFixed a possible leak of an OwnerID in the error path of 2410193267SjkimAcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID 2411193267Sjkimdeletion to a single place in AcpiTbUninstallTable to correct possible leaks 2412193267Sjkimwhen using the AcpiTbDeleteTablesByType interface (with assistance from 2413193267SjkimLance Ortiz.) 2414167802Sjkim 2415193267SjkimFixed a problem with Serialized control methods where the semaphore 2416193267Sjkimassociated with the method could be over-signaled after multiple method 2417193267Sjkiminvocations. 2418167802Sjkim 2419193267SjkimFixed two issues with the locking of the internal namespace data structure. 2420193267SjkimBoth the Unload() operator and AcpiUnloadTable interface now lock the 2421193267Sjkimnamespace during the namespace deletion associated with the table unload 2422193267Sjkim(with assistance from Linn Crosetto.) 2423167802Sjkim 2424167802SjkimFixed problem reports (Valery Podrezov) integrated: 2425193267Sjkim- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426) 2426167802Sjkim 2427167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2428167802Sjkim- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) 2429193267Sjkim- On Address Space handler deletion, needless deactivation call (BZ 374) 2430193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) 2431193267Sjkim- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone 2432193267Sjkim(BZ 376) 2433193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) 2434167802Sjkim- Minimum Length of RSDT should be validated (BZ 379) 2435193267Sjkim- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no 2436193267SjkimHandler (BZ (380) 2437193267Sjkim- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded 2438193267Sjkim(BZ 381) 2439167802Sjkim 2440193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2441193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2442193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2443193267Sjkima much larger code and data size. 2444167802Sjkim 2445167802Sjkim Previous Release: 2446167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2447167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2448167802Sjkim Current Release: 2449167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2450167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2451167802Sjkim 2452167802Sjkim 2453167802Sjkim2) iASL Compiler/Disassembler and Tools: 2454167802Sjkim 2455167802SjkimFixed problem reports: 2456193267SjkimCompiler segfault when ASL contains a long (>1024) String declaration (BZ 2457193267Sjkim436) 2458167802Sjkim 2459167802Sjkim---------------------------------------- 2460167802Sjkim23 June 2006. Summary of changes for version 20060623: 2461167802Sjkim 2462167802Sjkim1) ACPI CA Core Subsystem: 2463167802Sjkim 2464193267SjkimImplemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This 2465193267Sjkimallows the type to be customized to the host OS for improved efficiency 2466193267Sjkim(since a spinlock is usually a very small object.) 2467167802Sjkim 2468193267SjkimImplemented support for "ignored" bits in the ACPI registers. According to 2469193267Sjkimthe ACPI specification, these bits should be preserved when writing the 2470193267Sjkimregisters via a read/modify/write cycle. There are 3 bits preserved in this 2471193267Sjkimmanner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. 2472167802Sjkim 2473193267SjkimImplemented the initial deployment of new OSL mutex interfaces. Since some 2474193267Sjkimhost operating systems have separate mutex and semaphore objects, this 2475193267Sjkimfeature was requested. The base code now uses mutexes (and the new mutex 2476193267Sjkiminterfaces) wherever a binary semaphore was used previously. However, for 2477193267Sjkimthe current release, the mutex interfaces are defined as macros to map them 2478193267Sjkimto the existing semaphore interfaces. Therefore, no OSL changes are required 2479193267Sjkimat this time. (See acpiosxf.h) 2480167802Sjkim 2481193267SjkimFixed several problems with the support for the control method SyncLevel 2482193267Sjkimparameter. The SyncLevel now works according to the ACPI specification and 2483193267Sjkimin concert with the Mutex SyncLevel parameter, since the current SyncLevel 2484193267Sjkimis a property of the executing thread. Mutual exclusion for control methods 2485193267Sjkimis now implemented with a mutex instead of a semaphore. 2486167802Sjkim 2487193267SjkimFixed three instances of the use of the C shift operator in the bitfield 2488193267Sjkimsupport code (exfldio.c) to avoid the use of a shift value larger than the 2489193267Sjkimtarget data width. The behavior of C compilers is undefined in this case and 2490193267Sjkimcan cause unpredictable results, and therefore the case must be detected and 2491193267Sjkimavoided. (Fiodor Suietov) 2492167802Sjkim 2493193267SjkimAdded an info message whenever an SSDT or OEM table is loaded dynamically 2494193267Sjkimvia the Load() or LoadTable() ASL operators. This should improve debugging 2495193267Sjkimcapability since it will show exactly what tables have been loaded (beyond 2496193267Sjkimthe tables present in the RSDT/XSDT.) 2497167802Sjkim 2498193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2499193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2500193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2501193267Sjkima much larger code and data size. 2502167802Sjkim 2503167802Sjkim Previous Release: 2504167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 2505167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 2506167802Sjkim Current Release: 2507167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2508167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2509167802Sjkim 2510167802Sjkim 2511167802Sjkim2) iASL Compiler/Disassembler and Tools: 2512167802Sjkim 2513167802SjkimNo changes for this release. 2514167802Sjkim 2515167802Sjkim---------------------------------------- 2516167802Sjkim08 June 2006. Summary of changes for version 20060608: 2517167802Sjkim 2518167802Sjkim1) ACPI CA Core Subsystem: 2519167802Sjkim 2520193267SjkimConverted the locking mutex used for the ACPI hardware to a spinlock. This 2521193267Sjkimchange should eliminate all problems caused by attempting to acquire a 2522193267Sjkimsemaphore at interrupt level, and it means that all ACPICA external 2523193267Sjkiminterfaces that directly access the ACPI hardware can be safely called from 2524193267Sjkiminterrupt level. OSL code that implements the semaphore interfaces should be 2525193267Sjkimable to eliminate any workarounds for being called at interrupt level. 2526167802Sjkim 2527193267SjkimFixed a regression introduced in 20060526 where the ACPI device 2528193267Sjkiminitialization could be prematurely aborted with an AE_NOT_FOUND if a device 2529193267Sjkimdid not have an optional _INI method. 2530167802Sjkim 2531193267SjkimFixed an IndexField issue where a write to the Data Register should be 2532193267Sjkimlimited in size to the AccessSize (width) of the IndexField itself. (BZ 433, 2533193267SjkimFiodor Suietov) 2534167802Sjkim 2535167802SjkimFixed problem reports (Valery Podrezov) integrated: 2536193267Sjkim- Allow store of ThermalZone objects to Debug object (BZ 5369/5370) 2537167802Sjkim 2538167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2539193267Sjkim- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364) 2540167802Sjkim 2541193267SjkimRemoved four global mutexes that were obsolete and were no longer being 2542193267Sjkimused. 2543167802Sjkim 2544193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2545193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2546193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2547193267Sjkima much larger code and data size. 2548167802Sjkim 2549167802Sjkim Previous Release: 2550167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 2551167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 2552167802Sjkim Current Release: 2553167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 2554167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 2555167802Sjkim 2556167802Sjkim 2557167802Sjkim2) iASL Compiler/Disassembler and Tools: 2558167802Sjkim 2559193267SjkimFixed a fault when using -g option (get tables from registry) on Windows 2560193267Sjkimmachines. 2561167802Sjkim 2562167802SjkimFixed problem reports integrated: 2563193267Sjkim- Generate error if CreateField NumBits parameter is zero. (BZ 405) 2564193267Sjkim- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor 2565193267SjkimSuietov) 2566167802Sjkim- Global table revision override (-r) is ignored (BZ 413) 2567167802Sjkim 2568167802Sjkim---------------------------------------- 2569167802Sjkim26 May 2006. Summary of changes for version 20060526: 2570167802Sjkim 2571167802Sjkim1) ACPI CA Core Subsystem: 2572167802Sjkim 2573193267SjkimRestructured, flattened, and simplified the internal interfaces for 2574193267Sjkimnamespace object evaluation - resulting in smaller code, less CPU stack use, 2575193267Sjkimand fewer interfaces. (With assistance from Mikhail Kouzmich) 2576167802Sjkim 2577193267SjkimFixed a problem with the CopyObject operator where the first parameter was 2578193267Sjkimnot typed correctly for the parser, interpreter, compiler, and disassembler. 2579193267SjkimCaused various errors and unexpected behavior. 2580167802Sjkim 2581193267SjkimFixed a problem where a ShiftLeft or ShiftRight of more than 64 bits 2582193267Sjkimproduced incorrect results with some C compilers. Since the behavior of C 2583193267Sjkimcompilers when the shift value is larger than the datatype width is 2584193267Sjkimapparently not well defined, the interpreter now detects this condition and 2585193267Sjkimsimply returns zero as expected in all such cases. (BZ 395) 2586167802Sjkim 2587167802SjkimFixed problem reports (Valery Podrezov) integrated: 2588193267Sjkim- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329) 2589193267Sjkim- Allow interpreter to handle nested method declarations (BZ 5361) 2590167802Sjkim 2591167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2592193267Sjkim- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355) 2593193267Sjkim- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356) 2594193267Sjkim- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357) 2595193267Sjkim- Resource Manager should return AE_TYPE for non-device objects (BZ 358) 2596167802Sjkim- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) 2597193267Sjkim- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360) 2598167802Sjkim- Incomplete cleanup branch in AcpiPsParseAml (BZ 361) 2599167802Sjkim- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362) 2600193267Sjkim- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) 2601193267Sjkim- Status of the Global Initialization Handler call not used (BZ 366) 2602193267Sjkim- Incorrect object parameter to Global Initialization Handler (BZ 367) 2603167802Sjkim 2604193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2605193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2606193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2607193267Sjkima much larger code and data size. 2608167802Sjkim 2609167802Sjkim Previous Release: 2610167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 2611167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 2612167802Sjkim Current Release: 2613167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 2614167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 2615167802Sjkim 2616167802Sjkim 2617167802Sjkim2) iASL Compiler/Disassembler and Tools: 2618167802Sjkim 2619193267SjkimModified the parser to allow the names IO, DMA, and IRQ to be used as 2620193267Sjkimnamespace identifiers with no collision with existing resource descriptor 2621193267Sjkimmacro names. This provides compatibility with other ASL compilers and is 2622193267Sjkimmost useful for disassembly/recompilation of existing tables without parse 2623167802Sjkimerrors. (With assistance from Thomas Renninger) 2624167802Sjkim 2625193267SjkimDisassembler: fixed an incorrect disassembly problem with the 2626193267SjkimDataTableRegion and CopyObject operators. Fixed a possible fault during 2627193267Sjkimdisassembly of some Alias operators. 2628167802Sjkim 2629167802Sjkim---------------------------------------- 2630167802Sjkim12 May 2006. Summary of changes for version 20060512: 2631167802Sjkim 2632167802Sjkim1) ACPI CA Core Subsystem: 2633167802Sjkim 2634193267SjkimReplaced the AcpiOsQueueForExecution interface with a new interface named 2635193267SjkimAcpiOsExecute. The major difference is that the new interface does not have 2636193267Sjkima Priority parameter, this appeared to be useless and has been replaced by a 2637193267SjkimType parameter. The Type tells the host what type of execution is being 2638193267Sjkimrequested, such as global lock handler, notify handler, GPE handler, etc. 2639193267SjkimThis allows the host to queue and execute the request as appropriate for the 2640193267Sjkimrequest type, possibly using different work queues and different priorities 2641193267Sjkimfor the various request types. This enables fixes for multithreading 2642193267Sjkimdeadlock problems such as BZ #5534, and will require changes to all existing 2643193267SjkimOS interface layers. (Alexey Starikovskiy and Bob Moore) 2644167802Sjkim 2645193267SjkimFixed a possible memory leak associated with the support for the so-called 2646193267Sjkim"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor 2647193267SjkimSuietov) 2648167802Sjkim 2649193267SjkimFixed a problem with the Load() operator where a table load from an 2650193267Sjkimoperation region could overwrite an internal table buffer by up to 7 bytes 2651193267Sjkimand cause alignment faults on IPF systems. (With assistance from Luming Yu) 2652167802Sjkim 2653193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2654193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2655193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2656193267Sjkima much larger code and data size. 2657167802Sjkim 2658167802Sjkim Previous Release: 2659167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 2660167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 2661167802Sjkim Current Release: 2662167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 2663167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 2664167802Sjkim 2665167802Sjkim 2666167802Sjkim 2667167802Sjkim2) iASL Compiler/Disassembler and Tools: 2668167802Sjkim 2669193267SjkimDisassembler: Implemented support to cross reference the internal namespace 2670193267Sjkimand automatically generate ASL External() statements for symbols not defined 2671193267Sjkimwithin the current table being disassembled. This will simplify the 2672193267Sjkimdisassembly and recompilation of interdependent tables such as SSDTs since 2673193267Sjkimthese statements will no longer have to be added manually. 2674167802Sjkim 2675193267SjkimDisassembler: Implemented experimental support to automatically detect 2676193267Sjkiminvocations of external control methods and generate appropriate External() 2677193267Sjkimstatements. This is problematic because the AML cannot be correctly parsed 2678193267Sjkimuntil the number of arguments for each control method is known. Currently, 2679193267Sjkimstandalone method invocations and invocations as the source operand of a 2680193267SjkimStore() statement are supported. 2681167802Sjkim 2682193267SjkimDisassembler: Implemented support for the ASL pseudo-operators LNotEqual, 2683193267SjkimLLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()), 2684193267SjkimLNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code 2685193267Sjkimmore readable and likely closer to the original ASL source. 2686167802Sjkim 2687167802Sjkim---------------------------------------- 2688167802Sjkim21 April 2006. Summary of changes for version 20060421: 2689167802Sjkim 2690167802Sjkim1) ACPI CA Core Subsystem: 2691167802Sjkim 2692193267SjkimRemoved a device initialization optimization introduced in 20051216 where 2693193267Sjkimthe _STA method was not run unless an _INI was also present for the same 2694193267Sjkimdevice. This optimization could cause problems because it could allow _INI 2695193267Sjkimmethods to be run within a not-present device subtree. (If a not-present 2696193267Sjkimdevice had no _INI, _STA would not be run, the not-present status would not 2697193267Sjkimbe discovered, and the children of the device would be incorrectly 2698167802Sjkimtraversed.) 2699167802Sjkim 2700193267SjkimImplemented a new _STA optimization where namespace subtrees that do not 2701193267Sjkimcontain _INI are identified and ignored during device initialization. 2702193267SjkimSelectively running _STA can significantly improve boot time on large 2703193267Sjkimmachines (with assistance from Len Brown.) 2704167802Sjkim 2705193267SjkimImplemented support for the device initialization case where the returned 2706193267Sjkim_STA flags indicate a device not-present but functioning. In this case, _INI 2707193267Sjkimis not run, but the device children are examined for presence, as per the 2708193267SjkimACPI specification. 2709167802Sjkim 2710193267SjkimImplemented an additional change to the IndexField support in order to 2711193267Sjkimconform to MS behavior. The value written to the Index Register is not 2712193267Sjkimsimply a byte offset, it is a byte offset in units of the access width of 2713193267Sjkimthe parent Index Field. (Fiodor Suietov) 2714167802Sjkim 2715193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateAddress. This 2716193267Sjkiminterface is called during the creation of all AML operation regions, and 2717193267Sjkimallows the host OS to exert control over what addresses it will allow the 2718193267SjkimAML code to access. Operation Regions whose addresses are disallowed will 2719193267Sjkimcause a runtime exception when they are actually accessed (will not affect 2720193267Sjkimor abort table loading.) See oswinxf or osunixxf for an example 2721167802Sjkimimplementation. 2722167802Sjkim 2723193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateInterface. This 2724193267Sjkiminterface allows the host OS to match the various "optional" 2725193267Sjkiminterface/behavior strings for the _OSI predefined control method as 2726193267Sjkimappropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf 2727193267Sjkimfor an example implementation. 2728167802Sjkim 2729193267SjkimRestructured and corrected various problems in the exception handling code 2730193267Sjkimpaths within DsCallControlMethod and DsTerminateControlMethod in dsmethod 2731193267Sjkim(with assistance from Takayoshi Kochi.) 2732167802Sjkim 2733193267SjkimModified the Linux source converter to ignore quoted string literals while 2734193267Sjkimconverting identifiers from mixed to lower case. This will correct problems 2735193267Sjkimwith the disassembler and other areas where such strings must not be 2736193267Sjkimmodified. 2737167802Sjkim 2738193267SjkimThe ACPI_FUNCTION_* macros no longer require quotes around the function 2739193267Sjkimname. This allows the Linux source converter to convert the names, now that 2740193267Sjkimthe converter ignores quoted strings. 2741167802Sjkim 2742193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2743193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2744193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2745193267Sjkima much larger code and data size. 2746193267Sjkim 2747167802Sjkim Previous Release: 2748167802Sjkim 2749167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 2750167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 2751167802Sjkim Current Release: 2752167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 2753167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 2754167802Sjkim 2755167802Sjkim 2756167802Sjkim2) iASL Compiler/Disassembler and Tools: 2757167802Sjkim 2758193267SjkimImplemented 3 new warnings for iASL, and implemented multiple warning levels 2759193267Sjkim(w2 flag). 2760167802Sjkim 2761193267Sjkim1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not 2762193267SjkimWAIT_FOREVER (0xFFFF) and the code does not examine the return value to 2763193267Sjkimcheck for the possible timeout, a warning is issued. 2764167802Sjkim 2765193267Sjkim2) Useless operators: If an ASL operator does not specify an optional target 2766193267Sjkimoperand and it also does not use the function return value from the 2767193267Sjkimoperator, a warning is issued since the operator effectively does nothing. 2768167802Sjkim 2769193267Sjkim3) Unreferenced objects: If a namespace object is created, but never 2770193267Sjkimreferenced, a warning is issued. This is a warning level 2 since there are 2771193267Sjkimcases where this is ok, such as when a secondary table is loaded that uses 2772193267Sjkimthe unreferenced objects. Even so, care is taken to only flag objects that 2773193267Sjkimdon't look like they will ever be used. For example, the reserved methods 2774193267Sjkim(starting with an underscore) are usually not referenced because it is 2775193267Sjkimexpected that the OS will invoke them. 2776167802Sjkim 2777167802Sjkim---------------------------------------- 2778167802Sjkim31 March 2006. Summary of changes for version 20060331: 2779167802Sjkim 2780167802Sjkim1) ACPI CA Core Subsystem: 2781167802Sjkim 2782193267SjkimImplemented header file support for the following additional ACPI tables: 2783193267SjkimASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, 2784193267Sjkimall current and known ACPI tables are now defined in the ACPICA headers and 2785193267Sjkimare available for use by device drivers and other software. 2786167802Sjkim 2787193267SjkimImplemented support to allow tables that contain ACPI names with invalid 2788193267Sjkimcharacters to be loaded. Previously, this would cause the table load to 2789193267Sjkimfail, but since there are several known cases of such tables on existing 2790193267Sjkimmachines, this change was made to enable ACPI support for them. Also, this 2791193267Sjkimmatches the behavior of the Microsoft ACPI implementation. 2792167802Sjkim 2793193267SjkimFixed a couple regressions introduced during the memory optimization in the 2794193267Sjkim20060317 release. The namespace node definition required additional 2795193267Sjkimreorganization and an internal datatype that had been changed to 8-bit was 2796193267Sjkimrestored to 32-bit. (Valery Podrezov) 2797167802Sjkim 2798193267SjkimFixed a problem where a null pointer passed to AcpiUtDeleteGenericState 2799193267Sjkimcould be passed through to AcpiOsReleaseObject which is unexpected. Such 2800193267Sjkimnull pointers are now trapped and ignored, matching the behavior of the 2801193267Sjkimprevious implementation before the deployment of AcpiOsReleaseObject. 2802167802Sjkim(Valery Podrezov, Fiodor Suietov) 2803167802Sjkim 2804193267SjkimFixed a memory mapping leak during the deletion of a SystemMemory operation 2805193267Sjkimregion where a cached memory mapping was not deleted. This became a 2806193267Sjkimnoticeable problem for operation regions that are defined within frequently 2807193267Sjkimused control methods. (Dana Meyers) 2808167802Sjkim 2809193267SjkimReorganized the ACPI table header files into two main files: one for the 2810193267SjkimACPI tables consumed by the ACPICA core, and another for the miscellaneous 2811193267SjkimACPI tables that are consumed by the drivers and other software. The various 2812193267SjkimFADT definitions were merged into one common section and three different 2813193267Sjkimtables (ACPI 1.0, 1.0+, and 2.0) 2814167802Sjkim 2815193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2816193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2817193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2818193267Sjkima much larger code and data size. 2819167802Sjkim 2820167802Sjkim Previous Release: 2821167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 2822167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 2823167802Sjkim Current Release: 2824167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 2825167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 2826167802Sjkim 2827167802Sjkim 2828167802Sjkim2) iASL Compiler/Disassembler and Tools: 2829167802Sjkim 2830193267SjkimDisassembler: Implemented support to decode and format all non-AML ACPI 2831193267Sjkimtables (tables other than DSDTs and SSDTs.) This includes the new tables 2832193267Sjkimadded to the ACPICA headers, therefore all current and known ACPI tables are 2833193267Sjkimsupported. 2834167802Sjkim 2835193267SjkimDisassembler: The change to allow ACPI names with invalid characters also 2836193267Sjkimenables the disassembly of such tables. Invalid characters within names are 2837193267Sjkimchanged to '*' to make the name printable; the iASL compiler will still 2838193267Sjkimgenerate an error for such names, however, since this is an invalid ACPI 2839193267Sjkimcharacter. 2840167802Sjkim 2841193267SjkimImplemented an option for AcpiXtract (-a) to extract all tables found in the 2842193267Sjkiminput file. The default invocation extracts only the DSDTs and SSDTs. 2843167802Sjkim 2844193267SjkimFixed a couple of gcc generation issues for iASL and AcpiExec and added a 2845193267Sjkimmakefile for the AcpiXtract utility. 2846167802Sjkim 2847167802Sjkim---------------------------------------- 2848167802Sjkim17 March 2006. Summary of changes for version 20060317: 2849167802Sjkim 2850167802Sjkim1) ACPI CA Core Subsystem: 2851167802Sjkim 2852193267SjkimImplemented the use of a cache object for all internal namespace nodes. 2853193267SjkimSince there are about 1000 static nodes in a typical system, this will 2854193267Sjkimdecrease memory use for cache implementations that minimize per-allocation 2855193267Sjkimoverhead (such as a slab allocator.) 2856167802Sjkim 2857193267SjkimRemoved the reference count mechanism for internal namespace nodes, since it 2858193267Sjkimwas deemed unnecessary. This reduces the size of each namespace node by 2859193267Sjkimabout 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, 2860193267Sjkimand 32 bytes for the 64-bit case. 2861167802Sjkim 2862193267SjkimOptimized several internal data structures to reduce object size on 64-bit 2863193267Sjkimplatforms by packing data within the 64-bit alignment. This includes the 2864193267Sjkimfrequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static 2865193267Sjkiminstances corresponding to the namespace objects. 2866167802Sjkim 2867193267SjkimAdded two new strings for the predefined _OSI method: "Windows 2001.1 SP1" 2868193267Sjkimand "Windows 2006". 2869167802Sjkim 2870193267SjkimSplit the allocation tracking mechanism out to a separate file, from 2871193267Sjkimutalloc.c to uttrack.c. This mechanism appears to be only useful for 2872193267Sjkimapplication-level code. Kernels may wish to not include uttrack.c in 2873193267Sjkimdistributions. 2874167802Sjkim 2875193267SjkimRemoved all remnants of the obsolete ACPI_REPORT_* macros and the associated 2876193267Sjkimcode. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING 2877193267Sjkimmacros.) 2878167802Sjkim 2879193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 2880193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 2881193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 2882193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 2883193267Sjkimvalues will vary depending on the efficiency of the compiler and the 2884193267Sjkimcompiler options used during generation. 2885167802Sjkim 2886167802Sjkim Previous Release: 2887167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2888167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 2889167802Sjkim Current Release: 2890167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 2891167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 2892167802Sjkim 2893167802Sjkim 2894167802Sjkim2) iASL Compiler/Disassembler and Tools: 2895167802Sjkim 2896193267SjkimImplemented an ANSI C version of the acpixtract utility. This version will 2897193267Sjkimautomatically extract the DSDT and all SSDTs from the input acpidump text 2898193267Sjkimfile and dump the binary output to separate files. It can also display a 2899193267Sjkimsummary of the input file including the headers for each table found and 2900193267Sjkimwill extract any single ACPI table, with any signature. (See 2901167802Sjkimsource/tools/acpixtract) 2902167802Sjkim 2903167802Sjkim---------------------------------------- 2904167802Sjkim10 March 2006. Summary of changes for version 20060310: 2905167802Sjkim 2906167802Sjkim1) ACPI CA Core Subsystem: 2907167802Sjkim 2908193267SjkimTagged all external interfaces to the subsystem with the new 2909193267SjkimACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist 2910193267Sjkimkernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL 2911193267Sjkimmacro. The default definition is NULL. 2912167802Sjkim 2913193267SjkimAdded the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId. 2914193267SjkimThis allows the host to define this as necessary to simplify kernel 2915193267Sjkimintegration. The default definition is ACPI_NATIVE_UINT. 2916167802Sjkim 2917193267SjkimFixed two interpreter problems related to error processing, the deletion of 2918193267Sjkimobjects, and placing invalid pointers onto the internal operator result 2919193267Sjkimstack. BZ 6028, 6151 (Valery Podrezov) 2920167802Sjkim 2921193267SjkimIncreased the reference count threshold where a warning is emitted for large 2922193267Sjkimreference counts in order to eliminate unnecessary warnings on systems with 2923193267Sjkimlarge namespaces (especially 64-bit.) Increased the value from 0x400 to 2924193267Sjkim0x800. 2925167802Sjkim 2926193267SjkimDue to universal disagreement as to the meaning of the 'c' in the calloc() 2927193267Sjkimfunction, the ACPI_MEM_CALLOCATE macro has been renamed to 2928193267SjkimACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'. 2929193267SjkimACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and 2930193267SjkimACPI_FREE. 2931167802Sjkim 2932193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 2933193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 2934193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 2935193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 2936193267Sjkimvalues will vary depending on the efficiency of the compiler and the 2937193267Sjkimcompiler options used during generation. 2938167802Sjkim 2939167802Sjkim Previous Release: 2940167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 2941167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 2942167802Sjkim Current Release: 2943167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2944167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 2945167802Sjkim 2946167802Sjkim 2947167802Sjkim2) iASL Compiler/Disassembler: 2948167802Sjkim 2949193267SjkimDisassembler: implemented support for symbolic resource descriptor 2950193267Sjkimreferences. If a CreateXxxxField operator references a fixed offset within a 2951193267Sjkimresource descriptor, a name is assigned to the descriptor and the offset is 2952193267Sjkimtranslated to the appropriate resource tag and pathname. The addition of 2953193267Sjkimthis support brings the disassembled code very close to the original ASL 2954193267Sjkimsource code and helps eliminate run-time errors when the disassembled code 2955193267Sjkimis modified (and recompiled) in such a way as to invalidate the original 2956193267Sjkimfixed offsets. 2957167802Sjkim 2958193267SjkimImplemented support for a Descriptor Name as the last parameter to the ASL 2959193267SjkimRegister() macro. This parameter was inadvertently left out of the ACPI 2960193267Sjkimspecification, and will be added for ACPI 3.0b. 2961167802Sjkim 2962193267SjkimFixed a problem where the use of the "_OSI" string (versus the full path 2963193267Sjkim"\_OSI") caused an internal compiler error. ("No back ptr to op") 2964167802Sjkim 2965193267SjkimFixed a problem with the error message that occurs when an invalid string is 2966193267Sjkimused for a _HID object (such as one with an embedded asterisk: "*PNP010A".) 2967193267SjkimThe correct message is now displayed. 2968167802Sjkim 2969167802Sjkim---------------------------------------- 2970167802Sjkim17 February 2006. Summary of changes for version 20060217: 2971167802Sjkim 2972167802Sjkim1) ACPI CA Core Subsystem: 2973167802Sjkim 2974193267SjkimImplemented a change to the IndexField support to match the behavior of the 2975193267SjkimMicrosoft AML interpreter. The value written to the Index register is now a 2976193267Sjkimbyte offset, no longer an index based upon the width of the Data register. 2977193267SjkimThis should fix IndexField problems seen on some machines where the Data 2978193267Sjkimregister is not exactly one byte wide. The ACPI specification will be 2979193267Sjkimclarified on this point. 2980167802Sjkim 2981193267SjkimFixed a problem where several resource descriptor types could overrun the 2982193267Sjkiminternal descriptor buffer due to size miscalculation: VendorShort, 2983193267SjkimVendorLong, and Interrupt. This was noticed on IA64 machines, but could 2984193267Sjkimaffect all platforms. 2985167802Sjkim 2986193267SjkimFixed a problem where individual resource descriptors were misaligned within 2987193267Sjkimthe internal buffer, causing alignment faults on IA64 platforms. 2988167802Sjkim 2989193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 2990193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 2991193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 2992193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 2993193267Sjkimvalues will vary depending on the efficiency of the compiler and the 2994193267Sjkimcompiler options used during generation. 2995167802Sjkim 2996167802Sjkim Previous Release: 2997167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2998167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 2999167802Sjkim Current Release: 3000167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3001167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3002167802Sjkim 3003167802Sjkim 3004167802Sjkim2) iASL Compiler/Disassembler: 3005167802Sjkim 3006193267SjkimImplemented support for new reserved names: _WDG and _WED are Microsoft 3007193267Sjkimextensions for Windows Instrumentation Management, _TDL is a new ACPI- 3008193267Sjkimdefined method (Throttling Depth Limit.) 3009167802Sjkim 3010193267SjkimFixed a problem where a zero-length VendorShort or VendorLong resource 3011193267Sjkimdescriptor was incorrectly emitted as a descriptor of length one. 3012167802Sjkim 3013167802Sjkim---------------------------------------- 3014167802Sjkim10 February 2006. Summary of changes for version 20060210: 3015167802Sjkim 3016167802Sjkim1) ACPI CA Core Subsystem: 3017167802Sjkim 3018193267SjkimRemoved a couple of extraneous ACPI_ERROR messages that appeared during 3019193267Sjkimnormal execution. These became apparent after the conversion from 3020193267SjkimACPI_DEBUG_PRINT. 3021167802Sjkim 3022193267SjkimFixed a problem where the CreateField operator could hang if the BitIndex or 3023193267SjkimNumBits parameter referred to a named object. (Valery Podrezov, BZ 5359) 3024167802Sjkim 3025193267SjkimFixed a problem where a DeRefOf operation on a buffer object incorrectly 3026193267Sjkimfailed with an exception. This also fixes a couple of related RefOf and 3027193267SjkimDeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387) 3028167802Sjkim 3029193267SjkimFixed a problem where the AE_BUFFER_LIMIT exception was returned instead of 3030193267SjkimAE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ 3031193267Sjkim5480) 3032167802Sjkim 3033193267SjkimImplemented a memory cleanup at the end of the execution of each iteration 3034193267Sjkimof an AML While() loop, preventing the accumulation of outstanding objects. 3035193267Sjkim(Valery Podrezov, BZ 5427) 3036167802Sjkim 3037193267SjkimEliminated a chunk of duplicate code in the object resolution code. (Valery 3038193267SjkimPodrezov, BZ 5336) 3039167802Sjkim 3040167802SjkimFixed several warnings during the 64-bit code generation. 3041167802Sjkim 3042193267SjkimThe AcpiSrc source code conversion tool now inserts one line of whitespace 3043193267Sjkimafter an if() statement that is followed immediately by a comment, improving 3044193267Sjkimreadability of the Linux code. 3045167802Sjkim 3046193267SjkimCode and Data Size: The current and previous library sizes for the core 3047193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3048193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3049193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3050193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3051193267Sjkimand data size. Note that these values will vary depending on the efficiency 3052193267Sjkimof the compiler and the compiler options used during generation. 3053167802Sjkim 3054167802Sjkim Previous Release: 3055167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3056167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3057167802Sjkim Current Release: 3058167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3059167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3060167802Sjkim 3061167802Sjkim 3062167802Sjkim2) iASL Compiler/Disassembler: 3063167802Sjkim 3064193267SjkimFixed a problem with the disassembly of a BankField operator with a complex 3065193267Sjkimexpression for the BankValue parameter. 3066167802Sjkim 3067167802Sjkim---------------------------------------- 3068167802Sjkim27 January 2006. Summary of changes for version 20060127: 3069167802Sjkim 3070167802Sjkim1) ACPI CA Core Subsystem: 3071167802Sjkim 3072193267SjkimImplemented support in the Resource Manager to allow unresolved namestring 3073193267Sjkimreferences within resource package objects for the _PRT method. This support 3074193267Sjkimis in addition to the previously implemented unresolved reference support 3075193267Sjkimwithin the AML parser. If the interpreter slack mode is enabled, these 3076193267Sjkimunresolved references will be passed through to the caller as a NULL package 3077167802Sjkimentry. 3078167802Sjkim 3079193267SjkimImplemented and deployed new macros and functions for error and warning 3080193267Sjkimmessages across the subsystem. These macros are simpler and generate less 3081193267Sjkimcode than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, 3082193267SjkimACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older 3083193267Sjkimmacros remain defined to allow ACPI drivers time to migrate to the new 3084193267Sjkimmacros. 3085167802Sjkim 3086193267SjkimImplemented the ACPI_CPU_FLAGS type to simplify host OS integration of the 3087193267SjkimAcquire/Release Lock OSL interfaces. 3088167802Sjkim 3089193267SjkimFixed a problem where Alias ASL operators are sometimes not correctly 3090193267Sjkimresolved, in both the interpreter and the iASL compiler. 3091167802Sjkim 3092193267SjkimFixed several problems with the implementation of the ConcatenateResTemplate 3093193267SjkimASL operator. As per the ACPI specification, zero length buffers are now 3094193267Sjkimtreated as a single EndTag. One-length buffers always cause a fatal 3095193267Sjkimexception. Non-zero length buffers that do not end with a full 2-byte EndTag 3096167802Sjkimcause a fatal exception. 3097167802Sjkim 3098193267SjkimFixed a possible structure overwrite in the AcpiGetObjectInfo external 3099193267Sjkiminterface. (With assistance from Thomas Renninger) 3100167802Sjkim 3101193267SjkimCode and Data Size: The current and previous library sizes for the core 3102193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3103193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3104193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3105193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3106193267Sjkimand data size. Note that these values will vary depending on the efficiency 3107193267Sjkimof the compiler and the compiler options used during generation. 3108167802Sjkim 3109167802Sjkim Previous Release: 3110167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3111167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3112167802Sjkim Current Release: 3113167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3114167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3115167802Sjkim 3116167802Sjkim 3117167802Sjkim2) iASL Compiler/Disassembler: 3118167802Sjkim 3119193267SjkimFixed an internal error that was generated for any forward references to ASL 3120193267SjkimAlias objects. 3121167802Sjkim 3122167802Sjkim---------------------------------------- 3123167802Sjkim13 January 2006. Summary of changes for version 20060113: 3124167802Sjkim 3125167802Sjkim1) ACPI CA Core Subsystem: 3126167802Sjkim 3127193267SjkimAdded 2006 copyright to all module headers and signons. This affects 3128193267Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and the 3129193267Sjkimutilities. 3130193267Sjkim 3131193267SjkimEnhanced the ACPICA error reporting in order to simplify user migration to 3132193267Sjkimthe non-debug version of ACPICA. Replaced all instances of the 3133193267SjkimACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug 3134193267Sjkimlevels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, 3135193267Sjkimrespectively. This preserves all error and warning messages in the non-debug 3136193267Sjkimversion of the ACPICA code (this has been referred to as the "debug lite" 3137193267Sjkimoption.) Over 200 cases were converted to create a total of over 380 3138193267Sjkimerror/warning messages across the ACPICA code. This increases the code and 3139193267Sjkimdata size of the default non-debug version of the code somewhat (about 13K), 3140193267Sjkimbut all error/warning reporting may be disabled if desired (and code 3141193267Sjkimeliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time 3142193267Sjkimconfiguration option. The size of the debug version of ACPICA remains about 3143193267Sjkimthe same. 3144167802Sjkim 3145193267SjkimFixed a memory leak within the AML Debugger "Set" command. One object was 3146193267Sjkimnot properly deleted for every successful invocation of the command. 3147167802Sjkim 3148193267SjkimCode and Data Size: The current and previous library sizes for the core 3149193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3150193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3151193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3152193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3153193267Sjkimand data size. Note that these values will vary depending on the efficiency 3154193267Sjkimof the compiler and the compiler options used during generation. 3155167802Sjkim 3156167802Sjkim Previous Release: 3157167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3158167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3159167802Sjkim Current Release: 3160167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3161167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3162167802Sjkim 3163167802Sjkim 3164167802Sjkim2) iASL Compiler/Disassembler: 3165167802Sjkim 3166193267SjkimThe compiler now officially supports the ACPI 3.0a specification that was 3167193267Sjkimreleased on December 30, 2005. (Specification is available at www.acpi.info) 3168167802Sjkim 3169167802Sjkim---------------------------------------- 3170167802Sjkim16 December 2005. Summary of changes for version 20051216: 3171167802Sjkim 3172167802Sjkim1) ACPI CA Core Subsystem: 3173167802Sjkim 3174193267SjkimImplemented optional support to allow unresolved names within ASL Package 3175193267Sjkimobjects. A null object is inserted in the package when a named reference 3176193267Sjkimcannot be located in the current namespace. Enabled via the interpreter 3177193267Sjkimslack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines 3178193267Sjkimthat contain such code. 3179167802Sjkim 3180193267SjkimImplemented an optimization to the initialization sequence that can improve 3181193267Sjkimboot time. During ACPI device initialization, the _STA method is now run if 3182193267Sjkimand only if the _INI method exists. The _STA method is used to determine if 3183193267Sjkimthe device is present; An _INI can only be run if _STA returns present, but 3184193267Sjkimit is a waste of time to run the _STA method if the _INI does not exist. 3185167802Sjkim(Prototype and assistance from Dong Wei) 3186167802Sjkim 3187193267SjkimImplemented use of the C99 uintptr_t for the pointer casting macros if it is 3188193267Sjkimavailable in the current compiler. Otherwise, the default (void *) cast is 3189193267Sjkimused as before. 3190167802Sjkim 3191193267SjkimFixed some possible memory leaks found within the execution path of the 3192193267SjkimBreak, Continue, If, and CreateField operators. (Valery Podrezov) 3193167802Sjkim 3194193267SjkimFixed a problem introduced in the 20051202 release where an exception is 3195193267Sjkimgenerated during method execution if a control method attempts to declare 3196193267Sjkimanother method. 3197167802Sjkim 3198193267SjkimMoved resource descriptor string constants that are used by both the AML 3199193267Sjkimdisassembler and AML debugger to the common utilities directory so that 3200193267Sjkimthese components are independent. 3201167802Sjkim 3202193267SjkimImplemented support in the AcpiExec utility (-e switch) to globally ignore 3203193267Sjkimexceptions during control method execution (method is not aborted.) 3204167802Sjkim 3205193267SjkimAdded the rsinfo.c source file to the AcpiExec makefile for Linux/Unix 3206193267Sjkimgeneration. 3207167802Sjkim 3208193267SjkimCode and Data Size: The current and previous library sizes for the core 3209193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3210193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3211193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3212193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3213193267Sjkimand data size. Note that these values will vary depending on the efficiency 3214193267Sjkimof the compiler and the compiler options used during generation. 3215167802Sjkim 3216167802Sjkim Previous Release: 3217167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3218167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3219167802Sjkim Current Release: 3220167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3221167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3222167802Sjkim 3223167802Sjkim 3224167802Sjkim2) iASL Compiler/Disassembler: 3225167802Sjkim 3226193267SjkimFixed a problem where a CPU stack overflow fault could occur if a recursive 3227193267Sjkimmethod call was made from within a Return statement. 3228167802Sjkim 3229167802Sjkim---------------------------------------- 3230167802Sjkim02 December 2005. Summary of changes for version 20051202: 3231167802Sjkim 3232167802Sjkim1) ACPI CA Core Subsystem: 3233167802Sjkim 3234193267SjkimModified the parsing of control methods to no longer create namespace 3235193267Sjkimobjects during the first pass of the parse. Objects are now created only 3236193267Sjkimduring the execute phase, at the moment the namespace creation operator is 3237193267Sjkimencountered in the AML (Name, OperationRegion, CreateByteField, etc.) This 3238193267Sjkimshould eliminate ALREADY_EXISTS exceptions seen on some machines where 3239193267Sjkimreentrant control methods are protected by an AML mutex. The mutex will now 3240193267Sjkimcorrectly block multiple threads from attempting to create the same object 3241193267Sjkimmore than once. 3242167802Sjkim 3243193267SjkimIncreased the number of available Owner Ids for namespace object tracking 3244193267Sjkimfrom 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on 3245193267Sjkimsome machines with a large number of ACPI tables (either static or dynamic). 3246167802Sjkim 3247193267SjkimFixed a problem with the AcpiExec utility where a fault could occur when the 3248193267Sjkim-b switch (batch mode) is used. 3249167802Sjkim 3250193267SjkimEnhanced the namespace dump routine to output the owner ID for each 3251193267Sjkimnamespace object. 3252167802Sjkim 3253193267SjkimCode and Data Size: The current and previous library sizes for the core 3254193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3255193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3256193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3257193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3258193267Sjkimand data size. Note that these values will vary depending on the efficiency 3259193267Sjkimof the compiler and the compiler options used during generation. 3260167802Sjkim 3261167802Sjkim Previous Release: 3262167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3263167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3264167802Sjkim Current Release: 3265167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3266167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3267167802Sjkim 3268167802Sjkim 3269167802Sjkim2) iASL Compiler/Disassembler: 3270167802Sjkim 3271193267SjkimFixed a parse error during compilation of certain Switch/Case constructs. To 3272193267Sjkimsimplify the parse, the grammar now allows for multiple Default statements 3273193267Sjkimand this error is now detected and flagged during the analysis phase. 3274167802Sjkim 3275193267SjkimDisassembler: The disassembly now includes the contents of the original 3276193267Sjkimtable header within a comment at the start of the file. This includes the 3277193267Sjkimname and version of the original ASL compiler. 3278167802Sjkim 3279167802Sjkim---------------------------------------- 3280167802Sjkim17 November 2005. Summary of changes for version 20051117: 3281167802Sjkim 3282167802Sjkim1) ACPI CA Core Subsystem: 3283167802Sjkim 3284193267SjkimFixed a problem in the AML parser where the method thread count could be 3285193267Sjkimdecremented below zero if any errors occurred during the method parse phase. 3286193267SjkimThis should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. 3287193267SjkimThis also fixed a related regression with the mechanism that detects and 3288193267Sjkimcorrects methods that cannot properly handle reentrancy (related to the 3289193267Sjkimdeployment of the new OwnerId mechanism.) 3290167802Sjkim 3291193267SjkimEliminated the pre-parsing of control methods (to detect errors) during 3292193267Sjkimtable load. Related to the problem above, this was causing unwind issues if 3293193267Sjkimany errors occurred during the parse, and it seemed to be overkill. A table 3294193267Sjkimload should not be aborted if there are problems with any single control 3295193267Sjkimmethod, thus rendering this feature rather pointless. 3296167802Sjkim 3297193267SjkimFixed a problem with the new table-driven resource manager where an internal 3298193267Sjkimbuffer overflow could occur for small resource templates. 3299167802Sjkim 3300193267SjkimImplemented a new external interface, AcpiGetVendorResource. This interface 3301193267Sjkimwill find and return a vendor-defined resource descriptor within a _CRS or 3302193267Sjkim_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas. 3303167802Sjkim 3304193267SjkimRemoved the length limit (200) on string objects as per the upcoming ACPI 3305193267Sjkim3.0A specification. This affects the following areas of the interpreter: 1) 3306193267Sjkimany implicit conversion of a Buffer to a String, 2) a String object result 3307193267Sjkimof the ASL Concatentate operator, 3) the String object result of the ASL 3308193267SjkimToString operator. 3309167802Sjkim 3310193267SjkimFixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER 3311193267Sjkimon a semaphore object would incorrectly timeout. This allows the 3312193267Sjkimmultithreading features of the AcpiExec utility to work properly under 3313193267SjkimWindows. 3314167802Sjkim 3315193267SjkimUpdated the Linux makefiles for the iASL compiler and AcpiExec to include 3316193267Sjkimthe recently added file named "utresrc.c". 3317167802Sjkim 3318193267SjkimCode and Data Size: The current and previous library sizes for the core 3319193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3320193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3321193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3322193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3323193267Sjkimand data size. Note that these values will vary depending on the efficiency 3324193267Sjkimof the compiler and the compiler options used during generation. 3325167802Sjkim 3326167802Sjkim Previous Release: 3327167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3328167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3329167802Sjkim Current Release: 3330167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3331167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3332167802Sjkim 3333167802Sjkim 3334167802Sjkim2) iASL Compiler/Disassembler: 3335167802Sjkim 3336193267SjkimRemoved the limit (200) on string objects as per the upcoming ACPI 3.0A 3337193267Sjkimspecification. For the iASL compiler, this means that string literals within 3338193267Sjkimthe source ASL can be of any length. 3339167802Sjkim 3340193267SjkimEnhanced the listing output to dump the AML code for resource descriptors 3341193267Sjkimimmediately after the ASL code for each descriptor, instead of in a block at 3342193267Sjkimthe end of the entire resource template. 3343167802Sjkim 3344193267SjkimEnhanced the compiler debug output to dump the entire original parse tree 3345193267Sjkimconstructed during the parse phase, before any transforms are applied to the 3346193267Sjkimtree. The transformed tree is dumped also. 3347167802Sjkim 3348167802Sjkim---------------------------------------- 3349167802Sjkim02 November 2005. Summary of changes for version 20051102: 3350167802Sjkim 3351167802Sjkim1) ACPI CA Core Subsystem: 3352167802Sjkim 3353193267SjkimModified the subsystem initialization sequence to improve GPE support. The 3354193267SjkimGPE initialization has been split into two parts in order to defer execution 3355193267Sjkimof the _PRW methods (Power Resources for Wake) until after the hardware is 3356193267Sjkimfully initialized and the SCI handler is installed. This allows the _PRW 3357193267Sjkimmethods to access fields protected by the Global Lock. This will fix systems 3358193267Sjkimwhere a NO_GLOBAL_LOCK exception has been seen during initialization. 3359167802Sjkim 3360193267SjkimConverted the ACPI internal object disassemble and display code within the 3361193267SjkimAML debugger to fully table-driven operation, reducing code size and 3362193267Sjkimincreasing maintainability. 3363167802Sjkim 3364193267SjkimFixed a regression with the ConcatenateResTemplate() ASL operator introduced 3365193267Sjkimin the 20051021 release. 3366167802Sjkim 3367193267SjkimImplemented support for "local" internal ACPI object types within the 3368193267Sjkimdebugger "Object" command and the AcpiWalkNamespace external interfaces. 3369193267SjkimThese local types include RegionFields, BankFields, IndexFields, Alias, and 3370193267Sjkimreference objects. 3371167802Sjkim 3372193267SjkimMoved common AML resource handling code into a new file, "utresrc.c". This 3373193267Sjkimcode is shared by both the Resource Manager and the AML Debugger. 3374167802Sjkim 3375193267SjkimCode and Data Size: The current and previous library sizes for the core 3376193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3377193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3378193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3379193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3380193267Sjkimand data size. Note that these values will vary depending on the efficiency 3381193267Sjkimof the compiler and the compiler options used during generation. 3382167802Sjkim 3383167802Sjkim Previous Release: 3384167802Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3385167802Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3386167802Sjkim Current Release: 3387167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3388167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3389167802Sjkim 3390167802Sjkim 3391167802Sjkim2) iASL Compiler/Disassembler: 3392167802Sjkim 3393193267SjkimFixed a problem with very large initializer lists (more than 4000 elements) 3394193267Sjkimfor both Buffer and Package objects where the parse stack could overflow. 3395167802Sjkim 3396193267SjkimEnhanced the pre-compile source code scan for non-ASCII characters to ignore 3397193267Sjkimcharacters within comment fields. The scan is now always performed and is no 3398193267Sjkimlonger optional, detecting invalid characters within a source file 3399193267Sjkimimmediately rather than during the parse phase or later. 3400167802Sjkim 3401193267SjkimEnhanced the ASL grammar definition to force early reductions on all list- 3402193267Sjkimstyle grammar elements so that the overall parse stack usage is greatly 3403193267Sjkimreduced. This should improve performance and reduce the possibility of parse 3404193267Sjkimstack overflow. 3405167802Sjkim 3406193267SjkimEliminated all reduce/reduce conflicts in the iASL parser generation. Also, 3407193267Sjkimwith the addition of a %expected statement, the compiler generates from 3408193267Sjkimsource with no warnings. 3409167802Sjkim 3410193267SjkimFixed a possible segment fault in the disassembler if the input filename 3411193267Sjkimdoes not contain a "dot" extension (Thomas Renninger). 3412167802Sjkim 3413167802Sjkim---------------------------------------- 3414151937Sjkim21 October 2005. Summary of changes for version 20051021: 3415151937Sjkim 3416151937Sjkim1) ACPI CA Core Subsystem: 3417151937Sjkim 3418193267SjkimImplemented support for the EM64T and other x86-64 processors. This 3419193267Sjkimessentially entails recognizing that these processors support non-aligned 3420193267Sjkimmemory transfers. Previously, all 64-bit processors were assumed to lack 3421193267Sjkimhardware support for non-aligned transfers. 3422151937Sjkim 3423193267SjkimCompleted conversion of the Resource Manager to nearly full table-driven 3424193267Sjkimoperation. Specifically, the resource conversion code (convert AML to 3425193267Sjkiminternal format and the reverse) and the debug code to dump internal 3426193267Sjkimresource descriptors are fully table-driven, reducing code and data size and 3427193267Sjkimimproving maintainability. 3428151937Sjkim 3429193267SjkimThe OSL interfaces for Acquire and Release Lock now use a 64-bit flag word 3430193267Sjkimon 64-bit processors instead of a fixed 32-bit word. (With assistance from 3431193267SjkimAlexey Starikovskiy) 3432151937Sjkim 3433193267SjkimImplemented support within the resource conversion code for the Type- 3434193267SjkimSpecific byte within the various ACPI 3.0 *WordSpace macros. 3435151937Sjkim 3436193267SjkimFixed some issues within the resource conversion code for the type-specific 3437193267Sjkimflags for both Memory and I/O address resource descriptors. For Memory, 3438193267Sjkimimplemented support for the MTP and TTP flags. For I/O, split the TRS and 3439193267SjkimTTP flags into two separate fields. 3440151937Sjkim 3441193267SjkimCode and Data Size: The current and previous library sizes for the core 3442193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3443193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3444193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3445193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3446193267Sjkimand data size. Note that these values will vary depending on the efficiency 3447193267Sjkimof the compiler and the compiler options used during generation. 3448151937Sjkim 3449151937Sjkim Previous Release: 3450151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3451151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3452151937Sjkim Current Release: 3453151937Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3454151937Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3455151937Sjkim 3456151937Sjkim 3457167802Sjkim 3458151937Sjkim2) iASL Compiler/Disassembler: 3459151937Sjkim 3460193267SjkimRelaxed a compiler restriction that disallowed a ResourceIndex byte if the 3461193267Sjkimcorresponding ResourceSource string was not also present in a resource 3462193267Sjkimdescriptor declaration. This restriction caused problems with existing 3463193267SjkimAML/ASL code that includes the Index byte without the string. When such AML 3464193267Sjkimwas disassembled, it could not be compiled without modification. Further, 3465193267Sjkimthe modified code created a resource template with a different size than the 3466193267Sjkimoriginal, breaking code that used fixed offsets into the resource template 3467193267Sjkimbuffer. 3468151937Sjkim 3469193267SjkimRemoved a recent feature of the disassembler to ignore a lone ResourceIndex 3470193267Sjkimbyte. This byte is now emitted if present so that the exact AML can be 3471193267Sjkimreproduced when the disassembled code is recompiled. 3472151937Sjkim 3473193267SjkimImproved comments and text alignment for the resource descriptor code 3474193267Sjkimemitted by the disassembler. 3475151937Sjkim 3476193267SjkimImplemented disassembler support for the ACPI 3.0 AccessSize field within a 3477193267SjkimRegister() resource descriptor. 3478151937Sjkim 3479151937Sjkim---------------------------------------- 3480151937Sjkim30 September 2005. Summary of changes for version 20050930: 3481151937Sjkim 3482151937Sjkim1) ACPI CA Core Subsystem: 3483151937Sjkim 3484193267SjkimCompleted a major overhaul of the Resource Manager code - specifically, 3485193267Sjkimoptimizations in the area of the AML/internal resource conversion code. The 3486193267Sjkimcode has been optimized to simplify and eliminate duplicated code, CPU stack 3487193267Sjkimuse has been decreased by optimizing function parameters and local 3488193267Sjkimvariables, and naming conventions across the manager have been standardized 3489193267Sjkimfor clarity and ease of maintenance (this includes function, parameter, 3490193267Sjkimvariable, and struct/typedef names.) The update may force changes in some 3491193267Sjkimdriver code, depending on how resources are handled by the host OS. 3492151937Sjkim 3493193267SjkimAll Resource Manager dispatch and information tables have been moved to a 3494193267Sjkimsingle location for clarity and ease of maintenance. One new file was 3495193267Sjkimcreated, named "rsinfo.c". 3496151937Sjkim 3497193267SjkimThe ACPI return macros (return_ACPI_STATUS, etc.) have been modified to 3498193267Sjkimguarantee that the argument is not evaluated twice, making them less prone 3499193267Sjkimto macro side-effects. However, since there exists the possibility of 3500193267Sjkimadditional stack use if a particular compiler cannot optimize them (such as 3501193267Sjkimin the debug generation case), the original macros are optionally available. 3502193267SjkimNote that some invocations of the return_VALUE macro may now cause size 3503193267Sjkimmismatch warnings; the return_UINT8 and return_UINT32 macros are provided to 3504193267Sjkimeliminate these. (From Randy Dunlap) 3505151937Sjkim 3506193267SjkimImplemented a new mechanism to enable debug tracing for individual control 3507193267Sjkimmethods. A new external interface, AcpiDebugTrace, is provided to enable 3508193267Sjkimthis mechanism. The intent is to allow the host OS to easily enable and 3509193267Sjkimdisable tracing for problematic control methods. This interface can be 3510193267Sjkimeasily exposed to a user or debugger interface if desired. See the file 3511151937Sjkimpsxface.c for details. 3512151937Sjkim 3513193267SjkimAcpiUtCallocate will now return a valid pointer if a length of zero is 3514193267Sjkimspecified - a length of one is used and a warning is issued. This matches 3515193267Sjkimthe behavior of AcpiUtAllocate. 3516151937Sjkim 3517193267SjkimCode and Data Size: The current and previous library sizes for the core 3518193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3519193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3520193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3521193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3522193267Sjkimand data size. Note that these values will vary depending on the efficiency 3523193267Sjkimof the compiler and the compiler options used during generation. 3524151937Sjkim 3525151937Sjkim Previous Release: 3526151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 3527151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 3528151937Sjkim Current Release: 3529151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3530151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3531151937Sjkim 3532151937Sjkim 3533151937Sjkim2) iASL Compiler/Disassembler: 3534151937Sjkim 3535193267SjkimA remark is issued if the effective compile-time length of a package or 3536193267Sjkimbuffer is zero. Previously, this was a warning. 3537151937Sjkim 3538151937Sjkim---------------------------------------- 3539151937Sjkim16 September 2005. Summary of changes for version 20050916: 3540151937Sjkim 3541151937Sjkim1) ACPI CA Core Subsystem: 3542151937Sjkim 3543193267SjkimFixed a problem within the Resource Manager where support for the Generic 3544193267SjkimRegister descriptor was not fully implemented. This descriptor is now fully 3545193267Sjkimrecognized, parsed, disassembled, and displayed. 3546151937Sjkim 3547193267SjkimCompletely restructured the Resource Manager code to utilize table-driven 3548193267Sjkimdispatch and lookup, eliminating many of the large switch() statements. This 3549193267Sjkimreduces overall subsystem code size and code complexity. Affects the 3550193267Sjkimresource parsing and construction, disassembly, and debug dump output. 3551151937Sjkim 3552193267SjkimCleaned up and restructured the debug dump output for all resource 3553193267Sjkimdescriptors. Improved readability of the output and reduced code size. 3554151937Sjkim 3555193267SjkimFixed a problem where changes to internal data structures caused the 3556193267Sjkimoptional ACPI_MUTEX_DEBUG code to fail compilation if specified. 3557151937Sjkim 3558193267SjkimCode and Data Size: The current and previous library sizes for the core 3559193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3560193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3561193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3562193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3563193267Sjkimand data size. Note that these values will vary depending on the efficiency 3564193267Sjkimof the compiler and the compiler options used during generation. 3565151937Sjkim 3566151937Sjkim Previous Release: 3567151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 3568151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 3569151937Sjkim Current Release: 3570151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 3571151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 3572151937Sjkim 3573151937Sjkim 3574151937Sjkim2) iASL Compiler/Disassembler: 3575151937Sjkim 3576193267SjkimUpdated the disassembler to automatically insert an EndDependentFn() macro 3577193267Sjkiminto the ASL stream if this macro is missing in the original AML code, 3578193267Sjkimsimplifying compilation of the resulting ASL module. 3579151937Sjkim 3580193267SjkimFixed a problem in the disassembler where a disassembled ResourceSource 3581193267Sjkimstring (within a large resource descriptor) was not surrounded by quotes and 3582193267Sjkimnot followed by a comma, causing errors when the resulting ASL module was 3583193267Sjkimcompiled. Also, escape sequences within a ResourceSource string are now 3584193267Sjkimhandled correctly (especially "\\") 3585151937Sjkim 3586151937Sjkim---------------------------------------- 3587151937Sjkim02 September 2005. Summary of changes for version 20050902: 3588151937Sjkim 3589151937Sjkim1) ACPI CA Core Subsystem: 3590151937Sjkim 3591193267SjkimFixed a problem with the internal Owner ID allocation and deallocation 3592193267Sjkimmechanisms for control method execution and recursive method invocation. 3593193267SjkimThis should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" 3594193267Sjkimmessages seen on some systems. Recursive method invocation depth is 3595193267Sjkimcurrently limited to 255. (Alexey Starikovskiy) 3596151937Sjkim 3597193267SjkimCompletely eliminated all vestiges of support for the "module-level 3598193267Sjkimexecutable code" until this support is fully implemented and debugged. This 3599193267Sjkimshould eliminate the NO_RETURN_VALUE exceptions seen during table load on 3600193267Sjkimsome systems that invoke this support. 3601151937Sjkim 3602193267SjkimFixed a problem within the resource manager code where the transaction flags 3603193267Sjkimfor a 64-bit address descriptor were handled incorrectly in the type- 3604193267Sjkimspecific flag byte. 3605151937Sjkim 3606193267SjkimConsolidated duplicate code within the address descriptor resource manager 3607193267Sjkimcode, reducing overall subsystem code size. 3608151937Sjkim 3609193267SjkimFixed a fault when using the AML debugger "disassemble" command to 3610193267Sjkimdisassemble individual control methods. 3611151937Sjkim 3612193267SjkimRemoved references to the "release_current" directory within the Unix 3613193267Sjkimrelease package. 3614151937Sjkim 3615193267SjkimCode and Data Size: The current and previous core subsystem library sizes 3616193267Sjkimare shown below. These are the code and data sizes for the acpica.lib 3617193267Sjkimproduced by the Microsoft Visual C++ 6.0 compiler. These values do not 3618193267Sjkiminclude any ACPI driver or OSPM code. The debug version of the code includes 3619193267Sjkimthe debug output trace mechanism and has a much larger code and data size. 3620193267SjkimNote that these values will vary depending on the efficiency of the compiler 3621193267Sjkimand the compiler options used during generation. 3622151937Sjkim 3623151937Sjkim Previous Release: 3624151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3625151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 3626151937Sjkim Current Release: 3627151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 3628151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 3629151937Sjkim 3630151937Sjkim 3631151937Sjkim2) iASL Compiler/Disassembler: 3632151937Sjkim 3633193267SjkimImplemented an error check for illegal duplicate values in the interrupt and 3634193267Sjkimdma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and 3635193267SjkimInterrupt(). 3636151937Sjkim 3637193267SjkimImplemented error checking for the Irq() and IrqNoFlags() macros to detect 3638193267Sjkimtoo many values in the interrupt list (16 max) and invalid values in the 3639193267Sjkimlist (range 0 - 15) 3640151937Sjkim 3641193267SjkimThe maximum length string literal within an ASL file is now restricted to 3642193267Sjkim200 characters as per the ACPI specification. 3643151937Sjkim 3644193267SjkimFixed a fault when using the -ln option (generate namespace listing). 3645151937Sjkim 3646193267SjkimImplemented an error check to determine if a DescriptorName within a 3647193267Sjkimresource descriptor has already been used within the current scope. 3648151937Sjkim 3649151937Sjkim---------------------------------------- 3650151937Sjkim15 August 2005. Summary of changes for version 20050815: 3651193267Sjkim 3652151937Sjkim1) ACPI CA Core Subsystem: 3653193267Sjkim 3654193267SjkimImplemented a full bytewise compare to determine if a table load request is 3655193267Sjkimattempting to load a duplicate table. The compare is performed if the table 3656193267Sjkimsignatures and table lengths match. This will allow different tables with 3657193267Sjkimthe same OEM Table ID and revision to be loaded - probably against the ACPI 3658193267Sjkimspecification, but discovered in the field nonetheless. 3659193267Sjkim 3660193267SjkimAdded the changes.txt logfile to each of the zipped release packages. 3661193267Sjkim 3662193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3663193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3664193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3665193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3666193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3667193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3668193267Sjkimthe compiler options used during generation. 3669193267Sjkim 3670151937Sjkim Previous Release: 3671151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3672151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 3673151937Sjkim Current Release: 3674151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3675151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 3676193267Sjkim 3677193267Sjkim 3678151937Sjkim2) iASL Compiler/Disassembler: 3679193267Sjkim 3680193267SjkimFixed a problem where incorrect AML code could be generated for Package 3681193267Sjkimobjects if optimization is disabled (via the -oa switch). 3682193267Sjkim 3683193267SjkimFixed a problem with where incorrect AML code is generated for variable- 3684193267Sjkimlength packages when the package length is not specified and the number of 3685193267Sjkiminitializer values is greater than 255. 3686193267Sjkim 3687151937Sjkim 3688151937Sjkim---------------------------------------- 3689151937Sjkim29 July 2005. Summary of changes for version 20050729: 3690151937Sjkim 3691151937Sjkim1) ACPI CA Core Subsystem: 3692151937Sjkim 3693193267SjkimImplemented support to ignore an attempt to install/load a particular ACPI 3694193267Sjkimtable more than once. Apparently there exists BIOS code that repeatedly 3695193267Sjkimattempts to load the same SSDT upon certain events. With assistance from 3696193267SjkimVenkatesh Pallipadi. 3697151937Sjkim 3698193267SjkimRestructured the main interface to the AML parser in order to correctly 3699193267Sjkimhandle all exceptional conditions. This will prevent leakage of the OwnerId 3700193267Sjkimresource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some 3701193267Sjkimmachines. With assistance from Alexey Starikovskiy. 3702151937Sjkim 3703193267SjkimSupport for "module level code" has been disabled in this version due to a 3704193267Sjkimnumber of issues that have appeared on various machines. The support can be 3705193267Sjkimenabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem 3706193267Sjkimcompilation. When the issues are fully resolved, the code will be enabled by 3707151937Sjkimdefault again. 3708151937Sjkim 3709193267SjkimModified the internal functions for debug print support to define the 3710193267SjkimFunctionName parameter as a (const char *) for compatibility with compiler 3711193267Sjkimbuilt-in macros such as __FUNCTION__, etc. 3712151937Sjkim 3713151937SjkimLinted the entire ACPICA source tree for both 32-bit and 64-bit. 3714151937Sjkim 3715193267SjkimImplemented support to display an object count summary for the AML Debugger 3716193267Sjkimcommands Object and Methods. 3717151937Sjkim 3718193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3719193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3720193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3721193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3722193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3723193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3724193267Sjkimthe compiler options used during generation. 3725151937Sjkim 3726151937Sjkim Previous Release: 3727151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 3728151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 3729151937Sjkim Current Release: 3730151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3731151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 3732151937Sjkim 3733151937Sjkim 3734151937Sjkim2) iASL Compiler/Disassembler: 3735151937Sjkim 3736193267SjkimFixed a regression that appeared in the 20050708 version of the compiler 3737193267Sjkimwhere an error message was inadvertently emitted for invocations of the _OSI 3738193267Sjkimreserved control method. 3739151937Sjkim 3740151937Sjkim---------------------------------------- 3741151937Sjkim08 July 2005. Summary of changes for version 20050708: 3742151937Sjkim 3743151937Sjkim1) ACPI CA Core Subsystem: 3744151937Sjkim 3745193267SjkimThe use of the CPU stack in the debug version of the subsystem has been 3746193267Sjkimconsiderably reduced. Previously, a debug structure was declared in every 3747193267Sjkimfunction that used the debug macros. This structure has been removed in 3748193267Sjkimfavor of declaring the individual elements as parameters to the debug 3749193267Sjkimfunctions. This reduces the cumulative stack use during nested execution of 3750193267SjkimACPI function calls at the cost of a small increase in the code size of the 3751193267Sjkimdebug version of the subsystem. With assistance from Alexey Starikovskiy and 3752193267SjkimLen Brown. 3753151937Sjkim 3754193267SjkimAdded the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent 3755193267Sjkimheaders to define a macro that will return the current function name at 3756193267Sjkimruntime (such as __FUNCTION__ or _func_, etc.) The function name is used by 3757193267Sjkimthe debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the 3758193267Sjkimcompiler-dependent header, the function name is saved on the CPU stack (one 3759193267Sjkimpointer per function.) This mechanism is used because apparently there 3760193267Sjkimexists no standard ANSI-C defined macro that that returns the function name. 3761151937Sjkim 3762193267SjkimRedesigned and reimplemented the "Owner ID" mechanism used to track 3763193267Sjkimnamespace objects created/deleted by ACPI tables and control method 3764193267Sjkimexecution. A bitmap is now used to allocate and free the IDs, thus solving 3765193267Sjkimthe wraparound problem present in the previous implementation. The size of 3766193267Sjkimthe namespace node descriptor was reduced by 2 bytes as a result (Alexey 3767151937SjkimStarikovskiy). 3768151937Sjkim 3769193267SjkimRemoved the UINT32_BIT and UINT16_BIT types that were used for the bitfield 3770193267Sjkimflag definitions within the headers for the predefined ACPI tables. These 3771193267Sjkimhave been replaced by UINT8_BIT in order to increase the code portability of 3772193267Sjkimthe subsystem. If the use of UINT8 remains a problem, we may be forced to 3773193267Sjkimeliminate bitfields entirely because of a lack of portability. 3774151937Sjkim 3775193267SjkimEnhanced the performance of the AcpiUtUpdateObjectReference procedure. This 3776193267Sjkimis a frequently used function and this improvement increases the performance 3777193267Sjkimof the entire subsystem (Alexey Starikovskiy). 3778151937Sjkim 3779193267SjkimFixed several possible memory leaks and the inverse - premature object 3780193267Sjkimdeletion (Alexey Starikovskiy). 3781151937Sjkim 3782193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3783193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3784193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3785193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3786193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3787193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3788193267Sjkimthe compiler options used during generation. 3789151937Sjkim 3790151937Sjkim Previous Release: 3791151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 3792151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 3793151937Sjkim Current Release: 3794151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 3795151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 3796151937Sjkim 3797151937Sjkim---------------------------------------- 3798151937Sjkim24 June 2005. Summary of changes for version 20050624: 3799151937Sjkim 3800151937Sjkim1) ACPI CA Core Subsystem: 3801151937Sjkim 3802193267SjkimModified the new OSL cache interfaces to use ACPI_CACHE_T as the type for 3803193267Sjkimthe host-defined cache object. This allows the OSL implementation to define 3804193267Sjkimand type this object in any manner desired, simplifying the OSL 3805193267Sjkimimplementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for 3806193267SjkimLinux, and should be defined in the OS-specific header file for other 3807193267Sjkimoperating systems as required. 3808151937Sjkim 3809193267SjkimChanged the interface to AcpiOsAcquireObject to directly return the 3810193267Sjkimrequested object as the function return (instead of ACPI_STATUS.) This 3811193267Sjkimchange was made for performance reasons, since this is the purpose of the 3812193267Sjkiminterface in the first place. AcpiOsAcquireObject is now similar to the 3813193267SjkimAcpiOsAllocate interface. 3814151937Sjkim 3815193267SjkimImplemented a new AML debugger command named Businfo. This command displays 3816193267Sjkiminformation about all devices that have an associate _PRT object. The _ADR, 3817193267Sjkim_HID, _UID, and _CID are displayed for these devices. 3818151937Sjkim 3819193267SjkimModified the initialization sequence in AcpiInitializeSubsystem to call the 3820193267SjkimOSL interface AcpiOslInitialize first, before any local initialization. This 3821193267Sjkimchange was required because the global initialization now calls OSL 3822193267Sjkiminterfaces. 3823151937Sjkim 3824193267SjkimEnhanced the Dump command to display the entire contents of Package objects 3825193267Sjkim(including all sub-objects and their values.) 3826151937Sjkim 3827193267SjkimRestructured the code base to split some files because of size and/or 3828193267Sjkimbecause the code logically belonged in a separate file. New files are listed 3829193267Sjkimbelow. All makefiles and project files included in the ACPI CA release have 3830193267Sjkimbeen updated. 3831151937Sjkim utilities/utcache.c /* Local cache interfaces */ 3832151937Sjkim utilities/utmutex.c /* Local mutex support */ 3833151937Sjkim utilities/utstate.c /* State object support */ 3834151937Sjkim interpreter/parser/psloop.c /* Main AML parse loop */ 3835151937Sjkim 3836193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3837193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3838193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3839193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3840193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3841193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3842193267Sjkimthe compiler options used during generation. 3843151937Sjkim 3844151937Sjkim Previous Release: 3845151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 3846151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 3847151937Sjkim Current Release: 3848151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 3849151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 3850151937Sjkim 3851151937Sjkim 3852151937Sjkim2) iASL Compiler/Disassembler: 3853151937Sjkim 3854193267SjkimFixed a regression introduced in version 20050513 where the use of a Package 3855193267Sjkimobject within a Case() statement caused a compile time exception. The 3856193267Sjkimoriginal behavior has been restored (a Match() operator is emitted.) 3857151937Sjkim 3858151937Sjkim---------------------------------------- 3859151937Sjkim17 June 2005. Summary of changes for version 20050617: 3860151937Sjkim 3861151937Sjkim1) ACPI CA Core Subsystem: 3862151937Sjkim 3863193267SjkimMoved the object cache operations into the OS interface layer (OSL) to allow 3864193267Sjkimthe host OS to handle these operations if desired (for example, the Linux 3865193267SjkimOSL will invoke the slab allocator). This support is optional; the compile 3866193267Sjkimtime define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache 3867193267Sjkimcode in the ACPI CA core. The new OSL interfaces are shown below. See 3868193267Sjkimutalloc.c for an example implementation, and acpiosxf.h for the exact 3869193267Sjkiminterface definitions. With assistance from Alexey Starikovskiy. 3870151937Sjkim AcpiOsCreateCache 3871151937Sjkim AcpiOsDeleteCache 3872151937Sjkim AcpiOsPurgeCache 3873151937Sjkim AcpiOsAcquireObject 3874151937Sjkim AcpiOsReleaseObject 3875151937Sjkim 3876193267SjkimModified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return 3877193267Sjkimand restore a flags parameter. This fits better with many OS lock models. 3878193267SjkimNote: the current execution state (interrupt handler or not) is no longer 3879193267Sjkimpassed to these interfaces. If necessary, the OSL must determine this state 3880193267Sjkimby itself, a simple and fast operation. With assistance from Alexey 3881151937SjkimStarikovskiy. 3882151937Sjkim 3883193267SjkimFixed a problem in the ACPI table handling where a valid XSDT was assumed 3884193267Sjkimpresent if the revision of the RSDP was 2 or greater. According to the ACPI 3885193267Sjkimspecification, the XSDT is optional in all cases, and the table manager 3886193267Sjkimtherefore now checks for both an RSDP >=2 and a valid XSDT pointer. 3887193267SjkimOtherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain 3888193267Sjkimonly the RSDT. 3889151937Sjkim 3890193267SjkimFixed an interpreter problem with the Mid() operator in the case of an input 3891193267Sjkimstring where the resulting output string is of zero length. It now correctly 3892193267Sjkimreturns a valid, null terminated string object instead of a string object 3893193267Sjkimwith a null pointer. 3894151937Sjkim 3895193267SjkimFixed a problem with the control method argument handling to allow a store 3896193267Sjkimto an Arg object that already contains an object of type Device. The Device 3897193267Sjkimobject is now correctly overwritten. Previously, an error was returned. 3898151937Sjkim 3899167802Sjkim 3900193267SjkimEnhanced the debugger Find command to emit object values in addition to the 3901193267Sjkimfound object pathnames. The output format is the same as the dump namespace 3902193267Sjkimcommand. 3903151937Sjkim 3904193267SjkimEnhanced the debugger Set command. It now has the ability to set the value 3905193267Sjkimof any Named integer object in the namespace (Previously, only method locals 3906193267Sjkimand args could be set.) 3907151937Sjkim 3908193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3909193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3910193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3911193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3912193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3913193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3914193267Sjkimthe compiler options used during generation. 3915151937Sjkim 3916151937Sjkim Previous Release: 3917151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 3918151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 3919151937Sjkim Current Release: 3920151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 3921151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 3922151937Sjkim 3923151937Sjkim 3924151937Sjkim2) iASL Compiler/Disassembler: 3925151937Sjkim 3926193267SjkimFixed a regression in the disassembler where if/else/while constructs were 3927193267Sjkimoutput incorrectly. This problem was introduced in the previous release 3928193267Sjkim(20050526). This problem also affected the single-step disassembly in the 3929193267Sjkimdebugger. 3930151937Sjkim 3931193267SjkimFixed a problem where compiling the reserved _OSI method would randomly (but 3932193267Sjkimrarely) produce compile errors. 3933151937Sjkim 3934193267SjkimEnhanced the disassembler to emit compilable code in the face of incorrect 3935193267SjkimAML resource descriptors. If the optional ResourceSourceIndex is present, 3936193267Sjkimbut the ResourceSource is not, do not emit the ResourceSourceIndex in the 3937193267Sjkimdisassembly. Otherwise, the resulting code cannot be compiled without 3938193267Sjkimerrors. 3939151937Sjkim 3940151937Sjkim---------------------------------------- 3941151937Sjkim26 May 2005. Summary of changes for version 20050526: 3942151937Sjkim 3943151937Sjkim1) ACPI CA Core Subsystem: 3944151937Sjkim 3945193267SjkimImplemented support to execute Type 1 and Type 2 AML opcodes appearing at 3946193267Sjkimthe module level (not within a control method.) These opcodes are executed 3947193267Sjkimexactly once at the time the table is loaded. This type of code was legal up 3948193267Sjkimuntil the release of ACPI 2.0B (2002) and is now supported within ACPI CA in 3949193267Sjkimorder to provide backwards compatibility with earlier BIOS implementations. 3950193267SjkimThis eliminates the "Encountered executable code at module level" warning 3951193267Sjkimthat was previously generated upon detection of such code. 3952151937Sjkim 3953193267SjkimFixed a problem in the interpreter where an AE_NOT_FOUND exception could 3954193267Sjkiminadvertently be generated during the lookup of namespace objects in the 3955193267Sjkimsecond pass parse of ACPI tables and control methods. It appears that this 3956193267Sjkimproblem could occur during the resolution of forward references to namespace 3957193267Sjkimobjects. 3958151937Sjkim 3959193267SjkimAdded the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function, 3960193267Sjkimcorresponding to the same #ifdef in the AcpiUtAcquireMutex function. This 3961193267Sjkimallows the deadlock detection debug code to be compiled out in the normal 3962193267Sjkimcase, improving mutex performance (and overall subsystem performance) 3963193267Sjkimconsiderably. 3964151937Sjkim 3965193267SjkimImplemented a handful of miscellaneous fixes for possible memory leaks on 3966193267Sjkimerror conditions and error handling control paths. These fixes were 3967193267Sjkimsuggested by FreeBSD and the Coverity Prevent source code analysis tool. 3968151937Sjkim 3969193267SjkimAdded a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c) 3970193267Sjkimto prevent a fault in this error case. 3971151937Sjkim 3972193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3973193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3974193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3975193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3976193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3977193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3978193267Sjkimthe compiler options used during generation. 3979151937Sjkim 3980151937Sjkim Previous Release: 3981151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 3982151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 3983151937Sjkim Current Release: 3984151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 3985151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 3986151937Sjkim 3987151937Sjkim 3988151937Sjkim2) iASL Compiler/Disassembler: 3989151937Sjkim 3990193267SjkimImplemented support to allow Type 1 and Type 2 ASL operators to appear at 3991193267Sjkimthe module level (not within a control method.) These operators will be 3992193267Sjkimexecuted once at the time the table is loaded. This type of code was legal 3993193267Sjkimup until the release of ACPI 2.0B (2002) and is now supported by the iASL 3994193267Sjkimcompiler in order to provide backwards compatibility with earlier BIOS ASL 3995193267Sjkimcode. 3996151937Sjkim 3997193267SjkimThe ACPI integer width (specified via the table revision ID or the -r 3998193267Sjkimoverride, 32 or 64 bits) is now used internally during compile-time constant 3999193267Sjkimfolding to ensure that constants are truncated to 32 bits if necessary. 4000193267SjkimPreviously, the revision ID value was only emitted in the AML table header. 4001151937Sjkim 4002193267SjkimAn error message is now generated for the Mutex and Method operators if the 4003193267SjkimSyncLevel parameter is outside the legal range of 0 through 15. 4004151937Sjkim 4005193267SjkimFixed a problem with the Method operator ParameterTypes list handling (ACPI 4006193267Sjkim3.0). Previously, more than 2 types or 2 arguments generated a syntax error. 4007193267SjkimThe actual underlying implementation of method argument typechecking is 4008193267Sjkimstill under development, however. 4009151937Sjkim 4010151937Sjkim---------------------------------------- 4011151937Sjkim13 May 2005. Summary of changes for version 20050513: 4012151937Sjkim 4013151937Sjkim1) ACPI CA Core Subsystem: 4014151937Sjkim 4015193267SjkimImplemented support for PCI Express root bridges -- added support for device 4016193267SjkimPNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup. 4017151937Sjkim 4018193267SjkimThe interpreter now automatically truncates incoming 64-bit constants to 32 4019193267Sjkimbits if currently executing out of a 32-bit ACPI table (Revision < 2). This 4020193267Sjkimalso affects the iASL compiler constant folding. (Note: as per below, the 4021193267SjkimiASL compiler no longer allows 64-bit constants within 32-bit tables.) 4022151937Sjkim 4023193267SjkimFixed a problem where string and buffer objects with "static" pointers 4024193267Sjkim(pointers to initialization data within an ACPI table) were not handled 4025193267Sjkimconsistently. The internal object copy operation now always copies the data 4026193267Sjkimto a newly allocated buffer, regardless of whether the source object is 4027193267Sjkimstatic or not. 4028151937Sjkim 4029193267SjkimFixed a problem with the FromBCD operator where an implicit result 4030193267Sjkimconversion was improperly performed while storing the result to the target 4031193267Sjkimoperand. Since this is an "explicit conversion" operator, the implicit 4032193267Sjkimconversion should never be performed on the output. 4033151937Sjkim 4034193267SjkimFixed a problem with the CopyObject operator where a copy to an existing 4035193267Sjkimnamed object did not always completely overwrite the existing object stored 4036193267Sjkimat name. Specifically, a buffer-to-buffer copy did not delete the existing 4037193267Sjkimbuffer. 4038151937Sjkim 4039193267SjkimReplaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and 4040193267Sjkimstructs for consistency. 4041151937Sjkim 4042193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4043193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4044193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4045193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4046193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4047193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4048193267Sjkimthe compiler options used during generation. 4049151937Sjkim 4050151937Sjkim Previous Release: 4051151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4052151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4053151937Sjkim Current Release: (Same sizes) 4054151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4055151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4056151937Sjkim 4057151937Sjkim 4058151937Sjkim2) iASL Compiler/Disassembler: 4059151937Sjkim 4060193267SjkimThe compiler now emits a warning if an attempt is made to generate a 64-bit 4061193267Sjkiminteger constant from within a 32-bit ACPI table (Revision < 2). The integer 4062193267Sjkimis truncated to 32 bits. 4063151937Sjkim 4064193267SjkimFixed a problem with large package objects: if the static length of the 4065193267Sjkimpackage is greater than 255, the "variable length package" opcode is 4066193267Sjkimemitted. Previously, this caused an error. This requires an update to the 4067193267SjkimACPI spec, since it currently (incorrectly) states that packages larger than 4068193267Sjkim255 elements are not allowed. 4069151937Sjkim 4070193267SjkimThe disassembler now correctly handles variable length packages and packages 4071193267Sjkimlarger than 255 elements. 4072151937Sjkim 4073151937Sjkim---------------------------------------- 4074151937Sjkim08 April 2005. Summary of changes for version 20050408: 4075151937Sjkim 4076151937Sjkim1) ACPI CA Core Subsystem: 4077151937Sjkim 4078193267SjkimFixed three cases in the interpreter where an "index" argument to an ASL 4079193267Sjkimfunction was still (internally) 32 bits instead of the required 64 bits. 4080193267SjkimThis was the Index argument to the Index, Mid, and Match operators. 4081151937Sjkim 4082193267SjkimThe "strupr" function is now permanently local (AcpiUtStrupr), since this is 4083193267Sjkimnot a POSIX-defined function and not present in most kernel-level C 4084193267Sjkimlibraries. All references to the C library strupr function have been removed 4085193267Sjkimfrom the headers. 4086151937Sjkim 4087193267SjkimCompleted the deployment of static functions/prototypes. All prototypes with 4088193267Sjkimthe static attribute have been moved from the headers to the owning C file. 4089151937Sjkim 4090193267SjkimImplemented an extract option (-e) for the AcpiBin utility (AML binary 4091193267Sjkimutility). This option allows the utility to extract individual ACPI tables 4092193267Sjkimfrom the output of AcpiDmp. It provides the same functionality of the 4093193267Sjkimacpixtract.pl perl script without the worry of setting the correct perl 4094193267Sjkimoptions. AcpiBin runs on Windows and has not yet been generated/validated in 4095193267Sjkimthe Linux/Unix environment (but should be soon). 4096193267Sjkim 4097193267SjkimUpdated and fixed the table dump option for AcpiBin (-d). This option 4098193267Sjkimconverts a single ACPI table to a hex/ascii file, similar to the output of 4099193267SjkimAcpiDmp. 4100151937Sjkim 4101193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4102193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4103193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4104193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4105193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4106193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4107193267Sjkimthe compiler options used during generation. 4108151937Sjkim 4109151937Sjkim Previous Release: 4110151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4111151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4112151937Sjkim Current Release: 4113151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4114151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4115151937Sjkim 4116151937Sjkim 4117151937Sjkim2) iASL Compiler/Disassembler: 4118151937Sjkim 4119193267SjkimDisassembler fix: Added a check to ensure that the table length found in the 4120193267SjkimACPI table header within the input file is not longer than the actual input 4121193267Sjkimfile size. This indicates some kind of file or table corruption. 4122151937Sjkim 4123151937Sjkim---------------------------------------- 4124151937Sjkim29 March 2005. Summary of changes for version 20050329: 4125151937Sjkim 4126151937Sjkim1) ACPI CA Core Subsystem: 4127151937Sjkim 4128193267SjkimAn error is now generated if an attempt is made to create a Buffer Field of 4129193267Sjkimlength zero (A CreateField with a length operand of zero.) 4130151937Sjkim 4131193267SjkimThe interpreter now issues a warning whenever executable code at the module 4132193267Sjkimlevel is detected during ACPI table load. This will give some idea of the 4133193267Sjkimprevalence of this type of code. 4134151937Sjkim 4135193267SjkimImplemented support for references to named objects (other than control 4136193267Sjkimmethods) within package objects. 4137151937Sjkim 4138193267SjkimEnhanced package object output for the debug object. Package objects are now 4139193267Sjkimcompletely dumped, showing all elements. 4140151937Sjkim 4141193267SjkimEnhanced miscellaneous object output for the debug object. Any object can 4142193267Sjkimnow be written to the debug object (for example, a device object can be 4143193267Sjkimwritten, and the type of the object will be displayed.) 4144151937Sjkim 4145193267SjkimThe "static" qualifier has been added to all local functions across both the 4146193267Sjkimcore subsystem and the iASL compiler. 4147151937Sjkim 4148193267SjkimThe number of "long" lines (> 80 chars) within the source has been 4149193267Sjkimsignificantly reduced, by about 1/3. 4150151937Sjkim 4151193267SjkimCleaned up all header files to ensure that all CA/iASL functions are 4152193267Sjkimprototyped (even static functions) and the formatting is consistent. 4153151937Sjkim 4154151937SjkimTwo new header files have been added, acopcode.h and acnames.h. 4155151937Sjkim 4156151937SjkimRemoved several obsolete functions that were no longer used. 4157151937Sjkim 4158193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4159193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4160193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4161193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4162193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4163193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4164193267Sjkimthe compiler options used during generation. 4165151937Sjkim 4166151937Sjkim Previous Release: 4167151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4168151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4169151937Sjkim Current Release: 4170151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4171151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4172151937Sjkim 4173151937Sjkim 4174167802Sjkim 4175151937Sjkim2) iASL Compiler/Disassembler: 4176151937Sjkim 4177193267SjkimFixed a problem with the resource descriptor generation/support. For the 4178193267SjkimResourceSourceIndex and the ResourceSource fields, both must be present, or 4179193267Sjkimboth must be not present - can't have one without the other. 4180151937Sjkim 4181193267SjkimThe compiler now returns non-zero from the main procedure if any errors have 4182193267Sjkimoccurred during the compilation. 4183151937Sjkim 4184151937Sjkim 4185151937Sjkim---------------------------------------- 4186151937Sjkim09 March 2005. Summary of changes for version 20050309: 4187151937Sjkim 4188151937Sjkim1) ACPI CA Core Subsystem: 4189151937Sjkim 4190193267SjkimThe string-to-buffer implicit conversion code has been modified again after 4191193267Sjkima change to the ACPI specification. In order to match the behavior of the 4192193267Sjkimother major ACPI implementation, the target buffer is no longer truncated if 4193193267Sjkimthe source string is smaller than an existing target buffer. This change 4194193267Sjkimrequires an update to the ACPI spec, and should eliminate the recent 4195151937SjkimAE_AML_BUFFER_LIMIT issues. 4196151937Sjkim 4197193267SjkimThe "implicit return" support was rewritten to a new algorithm that solves 4198193267Sjkimthe general case. Rather than attempt to determine when a method is about to 4199193267Sjkimexit, the result of every ASL operator is saved momentarily until the very 4200193267Sjkimnext ASL operator is executed. Therefore, no matter how the method exits, 4201193267Sjkimthere will always be a saved implicit return value. This feature is only 4202193267Sjkimenabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate 4203193267SjkimAE_AML_NO_RETURN_VALUE errors when enabled. 4204151937Sjkim 4205193267SjkimImplemented implicit conversion support for the predicate (operand) of the 4206193267SjkimIf, Else, and While operators. String and Buffer arguments are automatically 4207193267Sjkimconverted to Integers. 4208151937Sjkim 4209193267SjkimChanged the string-to-integer conversion behavior to match the new ACPI 4210193267Sjkimerrata: "If no integer object exists, a new integer is created. The ASCII 4211193267Sjkimstring is interpreted as a hexadecimal constant. Each string character is 4212193267Sjkiminterpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting 4213193267Sjkimwith the first character as the most significant digit, and ending with the 4214193267Sjkimfirst non-hexadecimal character or end-of-string." This means that the first 4215193267Sjkimnon-hex character terminates the conversion and this is the code that was 4216193267Sjkimchanged. 4217151937Sjkim 4218193267SjkimFixed a problem where the ObjectType operator would fail (fault) when used 4219193267Sjkimon an Index of a Package which pointed to a null package element. The 4220193267Sjkimoperator now properly returns zero (Uninitialized) in this case. 4221151937Sjkim 4222193267SjkimFixed a problem where the While operator used excessive memory by not 4223193267Sjkimproperly popping the result stack during execution. There was no memory leak 4224193267Sjkimafter execution, however. (Code provided by Valery Podrezov.) 4225151937Sjkim 4226193267SjkimFixed a problem where references to control methods within Package objects 4227193267Sjkimcaused the method to be invoked, instead of producing a reference object 4228193267Sjkimpointing to the method. 4229151937Sjkim 4230193267SjkimRestructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to 4231193267Sjkimimprove performance and reduce code size. (Code provided by Alexey 4232193267SjkimStarikovskiy.) 4233151937Sjkim 4234193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4235193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4236193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4237193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4238193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4239193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4240193267Sjkimthe compiler options used during generation. 4241151937Sjkim 4242151937Sjkim Previous Release: 4243151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4244151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4245151937Sjkim Current Release: 4246151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4247151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4248151937Sjkim 4249151937Sjkim 4250151937Sjkim2) iASL Compiler/Disassembler: 4251151937Sjkim 4252193267SjkimFixed a problem with the Return operator with no arguments. Since the AML 4253193267Sjkimgrammar for the byte encoding requires an operand for the Return opcode, the 4254193267Sjkimcompiler now emits a Return(Zero) for this case. An ACPI specification 4255193267Sjkimupdate has been written for this case. 4256151937Sjkim 4257193267SjkimFor tables other than the DSDT, namepath optimization is automatically 4258193267Sjkimdisabled. This is because SSDTs can be loaded anywhere in the namespace, the 4259193267Sjkimcompiler has no knowledge of where, and thus cannot optimize namepaths. 4260151937Sjkim 4261193267SjkimAdded "ProcessorObj" to the ObjectTypeKeyword list. This object type was 4262193267Sjkiminadvertently omitted from the ACPI specification, and will require an 4263193267Sjkimupdate to the spec. 4264151937Sjkim 4265193267SjkimThe source file scan for ASCII characters is now optional (-a). This change 4266193267Sjkimwas made because some vendors place non-ascii characters within comments. 4267193267SjkimHowever, the scan is simply a brute-force byte compare to ensure all 4268193267Sjkimcharacters in the file are in the range 0x00 to 0x7F. 4269151937Sjkim 4270193267SjkimFixed a problem with the CondRefOf operator where the compiler was 4271193267Sjkiminappropriately checking for the existence of the target. Since the point of 4272193267Sjkimthe operator is to check for the existence of the target at run-time, the 4273193267Sjkimcompiler no longer checks for the target existence. 4274151937Sjkim 4275193267SjkimFixed a problem where errors generated from the internal AML interpreter 4276193267Sjkimduring constant folding were not handled properly, causing a fault. 4277151937Sjkim 4278193267SjkimFixed a problem with overly aggressive range checking for the Stall 4279193267Sjkimoperator. The valid range (max 255) is now only checked if the operand is of 4280193267Sjkimtype Integer. All other operand types cannot be statically checked. 4281151937Sjkim 4282193267SjkimFixed a problem where control method references within the RefOf, DeRefOf, 4283193267Sjkimand ObjectType operators were not treated properly. They are now treated as 4284193267Sjkimactual references, not method invocations. 4285151937Sjkim 4286193267SjkimFixed and enhanced the "list namespace" option (-ln). This option was broken 4287193267Sjkima number of releases ago. 4288151937Sjkim 4289193267SjkimImproved error handling for the Field, IndexField, and BankField operators. 4290193267SjkimThe compiler now cleanly reports and recovers from errors in the field 4291193267Sjkimcomponent (FieldUnit) list. 4292151937Sjkim 4293193267SjkimFixed a disassembler problem where the optional ResourceDescriptor fields 4294193267SjkimTRS and TTP were not always handled correctly. 4295151937Sjkim 4296151937SjkimDisassembler - Comments in output now use "//" instead of "/*" 4297151937Sjkim 4298151937Sjkim---------------------------------------- 4299151937Sjkim28 February 2005. Summary of changes for version 20050228: 4300151937Sjkim 4301151937Sjkim1) ACPI CA Core Subsystem: 4302151937Sjkim 4303193267SjkimFixed a problem where the result of an Index() operator (an object 4304193267Sjkimreference) must increment the reference count on the target object for the 4305193267Sjkimlife of the object reference. 4306151937Sjkim 4307193267SjkimImplemented AML Interpreter and Debugger support for the new ACPI 3.0 4308193267SjkimExtended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace 4309193267Sjkimresource descriptors. 4310151937Sjkim 4311193267SjkimImplemented support in the _OSI method for the ACPI 3.0 "Extended Address 4312193267SjkimSpace Descriptor" string, indicating interpreter support for the descriptors 4313193267Sjkimabove. 4314151937Sjkim 4315151937SjkimImplemented header support for the new ACPI 3.0 FADT flag bits. 4316151937Sjkim 4317193267SjkimImplemented header support for the new ACPI 3.0 PCI Express bits for the PM1 4318193267Sjkimstatus/enable registers. 4319151937Sjkim 4320193267SjkimUpdated header support for the MADT processor local Apic struct and MADT 4321193267Sjkimplatform interrupt source struct for new ACPI 3.0 fields. 4322151937Sjkim 4323151937SjkimImplemented header support for the SRAT and SLIT ACPI tables. 4324151937Sjkim 4325193267SjkimImplemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag 4326193267Sjkimat runtime. 4327151937Sjkim 4328193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4329193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4330193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4331193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4332193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4333193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4334193267Sjkimthe compiler options used during generation. 4335151937Sjkim 4336151937Sjkim Previous Release: 4337151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4338151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4339151937Sjkim Current Release: 4340151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4341151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4342151937Sjkim 4343151937Sjkim 4344151937Sjkim2) iASL Compiler/Disassembler: 4345151937Sjkim 4346193267SjkimFixed a problem with the internal 64-bit String-to-integer conversion with 4347193267Sjkimstrings less than two characters long. 4348151937Sjkim 4349193267SjkimFixed a problem with constant folding where the result of the Index() 4350193267Sjkimoperator can not be considered a constant. This means that Index() cannot be 4351193267Sjkima type3 opcode and this will require an update to the ACPI specification. 4352151937Sjkim 4353193267SjkimDisassembler: Implemented support for the TTP, MTP, and TRS resource 4354193267Sjkimdescriptor fields. These fields were inadvertently ignored and not output in 4355193267Sjkimthe disassembly of the resource descriptor. 4356151937Sjkim 4357151937Sjkim 4358151937Sjkim ---------------------------------------- 4359151937Sjkim11 February 2005. Summary of changes for version 20050211: 4360151937Sjkim 4361151937Sjkim1) ACPI CA Core Subsystem: 4362151937Sjkim 4363193267SjkimImplemented ACPI 3.0 support for implicit conversion within the Match() 4364193267Sjkimoperator. MatchObjects can now be of type integer, buffer, or string instead 4365193267Sjkimof just type integer. Package elements are implicitly converted to the type 4366193267Sjkimof the MatchObject. This change aligns the behavior of Match() with the 4367193267Sjkimbehavior of the other logical operators (LLess(), etc.) It also requires an 4368193267Sjkimerrata change to the ACPI specification as this support was intended for 4369193267SjkimACPI 3.0, but was inadvertently omitted. 4370151937Sjkim 4371193267SjkimFixed a problem with the internal implicit "to buffer" conversion. Strings 4372193267Sjkimthat are converted to buffers will cause buffer truncation if the string is 4373193267Sjkimsmaller than the target buffer. Integers that are converted to buffers will 4374193267Sjkimnot cause buffer truncation, only zero extension (both as per the ACPI 4375193267Sjkimspec.) The problem was introduced when code was added to truncate the 4376193267Sjkimbuffer, but this should not be performed in all cases, only the string case. 4377151937Sjkim 4378193267SjkimFixed a problem with the Buffer and Package operators where the interpreter 4379193267Sjkimwould get confused if two such operators were used as operands to an ASL 4380193267Sjkimoperator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result 4381193267Sjkimstack was not being popped after the execution of these operators, resulting 4382193267Sjkimin an AE_NO_RETURN_VALUE exception. 4383151937Sjkim 4384193267SjkimFixed a problem with constructs of the form Store(Index(...),...). The 4385193267Sjkimreference object returned from Index was inadvertently resolved to an actual 4386193267Sjkimvalue. This problem was introduced in version 20050114 when the behavior of 4387193267SjkimStore() was modified to restrict the object types that can be used as the 4388151937Sjkimsource operand (to match the ACPI specification.) 4389151937Sjkim 4390193267SjkimReduced excessive stack use within the AcpiGetObjectInfo procedure. 4391151937Sjkim 4392193267SjkimAdded a fix to aclinux.h to allow generation of AcpiExec on Linux. 4393151937Sjkim 4394193267SjkimUpdated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct. 4395151937Sjkim 4396193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4397193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4398193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4399193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4400193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4401193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4402193267Sjkimthe compiler options used during generation. 4403151937Sjkim 4404151937Sjkim Previous Release: 4405151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4406151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4407151937Sjkim Current Release: 4408151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4409151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4410151937Sjkim 4411151937Sjkim 4412151937Sjkim2) iASL Compiler/Disassembler: 4413151937Sjkim 4414193267SjkimFixed a code generation problem in the constant folding optimization code 4415193267Sjkimwhere incorrect code was generated if a constant was reduced to a buffer 4416193267Sjkimobject (i.e., a reduced type 5 opcode.) 4417151937Sjkim 4418193267SjkimFixed a typechecking problem for the ToBuffer operator. Caused by an 4419193267Sjkimincorrect return type in the internal opcode information table. 4420151937Sjkim 4421151937Sjkim---------------------------------------- 4422151937Sjkim25 January 2005. Summary of changes for version 20050125: 4423151937Sjkim 4424151937Sjkim1) ACPI CA Core Subsystem: 4425151937Sjkim 4426193267SjkimFixed a recently introduced problem with the Global Lock where the 4427193267Sjkimunderlying semaphore was not created. This problem was introduced in 4428193267Sjkimversion 20050114, and caused an AE_AML_NO_OPERAND exception during an 4429193267SjkimAcquire() operation on _GL. 4430151937Sjkim 4431193267SjkimThe local object cache is now optional, and is disabled by default. Both 4432193267SjkimAcpiExec and the iASL compiler enable the cache because they run in user 4433193267Sjkimmode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE 4434193267Sjkimto enable the local cache. 4435151937Sjkim 4436193267SjkimFixed an issue in the internal function AcpiUtEvaluateObject concerning the 4437193267Sjkimoptional "implicit return" support where an error was returned if no return 4438193267Sjkimobject was expected, but one was implicitly returned. AE_OK is now returned 4439193267Sjkimin this case and the implicitly returned object is deleted. 4440193267SjkimAcpiUtEvaluateObject is only occasionally used, and only to execute reserved 4441193267Sjkimmethods such as _STA and _INI where the return type is known up front. 4442151937Sjkim 4443193267SjkimFixed a few issues with the internal convert-to-integer code. It now returns 4444193267Sjkiman error if an attempt is made to convert a null string, a string of only 4445193267Sjkimblanks/tabs, or a zero-length buffer. This affects both implicit conversion 4446193267Sjkimand explicit conversion via the ToInteger() operator. 4447151937Sjkim 4448193267SjkimThe internal debug code in AcpiUtAcquireMutex has been commented out. It is 4449193267Sjkimnot needed for normal operation and should increase the performance of the 4450193267Sjkimentire subsystem. The code remains in case it is needed for debug purposes 4451193267Sjkimagain. 4452151937Sjkim 4453193267SjkimThe AcpiExec source and makefile are included in the Unix/Linux package for 4454193267Sjkimthe first time. 4455151937Sjkim 4456193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4457193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4458193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4459193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4460193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4461193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4462193267Sjkimthe compiler options used during generation. 4463151937Sjkim 4464151937Sjkim Previous Release: 4465151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 4466151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 4467151937Sjkim Current Release: 4468151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4469151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4470151937Sjkim 4471151937Sjkim2) iASL Compiler/Disassembler: 4472151937Sjkim 4473193267SjkimSwitch/Case support: A warning is now issued if the type of the Switch value 4474193267Sjkimcannot be determined at compile time. For example, Switch(Arg0) will 4475193267Sjkimgenerate the warning, and the type is assumed to be an integer. As per the 4476193267SjkimACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the 4477193267Sjkimwarning. 4478151937Sjkim 4479193267SjkimSwitch/Case support: Implemented support for buffer and string objects as 4480193267Sjkimthe switch value. This is an ACPI 3.0 feature, now that LEqual supports 4481193267Sjkimbuffers and strings. 4482151937Sjkim 4483193267SjkimSwitch/Case support: The emitted code for the LEqual() comparisons now uses 4484193267Sjkimthe switch value as the first operand, not the second. The case value is now 4485193267Sjkimthe second operand, and this allows the case value to be implicitly 4486193267Sjkimconverted to the type of the switch value, not the other way around. 4487151937Sjkim 4488193267SjkimSwitch/Case support: Temporary variables are now emitted immediately within 4489193267Sjkimthe control method, not at the global level. This means that there are now 4490193267Sjkim36 temps available per-method, not 36 temps per-module as was the case with 4491193267Sjkimthe earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.) 4492151937Sjkim 4493151937Sjkim---------------------------------------- 4494151937Sjkim14 January 2005. Summary of changes for version 20050114: 4495151937Sjkim 4496193267SjkimAdded 2005 copyright to all module headers. This affects every module in 4497193267Sjkimthe core subsystem, iASL compiler, and the utilities. 4498151937Sjkim 4499151937Sjkim1) ACPI CA Core Subsystem: 4500151937Sjkim 4501193267SjkimFixed an issue with the String-to-Buffer conversion code where the string 4502193267Sjkimnull terminator was not included in the buffer after conversion, but there 4503193267Sjkimis existing ASL that assumes the string null terminator is included. This is 4504193267Sjkimthe root of the ACPI_AML_BUFFER_LIMIT regression. This problem was 4505193267Sjkimintroduced in the previous version when the code was updated to correctly 4506193267Sjkimset the converted buffer size as per the ACPI specification. The ACPI spec 4507193267Sjkimis ambiguous and will be updated to specify that the null terminator must be 4508193267Sjkimincluded in the converted buffer. This also affects the ToBuffer() ASL 4509193267Sjkimoperator. 4510151937Sjkim 4511193267SjkimFixed a problem with the Mid() ASL/AML operator where it did not work 4512193267Sjkimcorrectly on Buffer objects. Newly created sub-buffers were not being marked 4513193267Sjkimas initialized. 4514151937Sjkim 4515167802Sjkim 4516193267SjkimFixed a problem in AcpiTbFindTable where incorrect string compares were 4517193267Sjkimperformed on the OemId and OemTableId table header fields. These fields are 4518193267Sjkimnot null terminated, so strncmp is now used instead of strcmp. 4519151937Sjkim 4520193267SjkimImplemented a restriction on the Store() ASL/AML operator to align the 4521193267Sjkimbehavior with the ACPI specification. Previously, any object could be used 4522193267Sjkimas the source operand. Now, the only objects that may be used are Integers, 4523193267SjkimBuffers, Strings, Packages, Object References, and DDB Handles. If 4524193267Sjkimnecessary, the original behavior can be restored by enabling the 4525151937SjkimEnableInterpreterSlack flag. 4526151937Sjkim 4527193267SjkimEnhanced the optional "implicit return" support to allow an implicit return 4528193267Sjkimvalue from methods that are invoked externally via the AcpiEvaluateObject 4529193267Sjkiminterface. This enables implicit returns from the _STA and _INI methods, 4530193267Sjkimfor example. 4531151937Sjkim 4532193267SjkimChanged the Revision() ASL/AML operator to return the current version of the 4533193267SjkimAML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned 4534193267Sjkimthe supported ACPI version (This is the function of the _REV method). 4535151937Sjkim 4536193267SjkimUpdated the _REV predefined method to return the currently supported version 4537193267Sjkimof ACPI, now 3. 4538151937Sjkim 4539151937SjkimImplemented batch mode option for the AcpiExec utility (-b). 4540151937Sjkim 4541193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4542193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4543193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4544193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4545193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4546193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4547193267Sjkimthe compiler options used during generation. 4548151937Sjkim 4549151937Sjkim Previous Release: 4550151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4551151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 4552151937Sjkim Current Release: 4553151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 4554151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 4555151937Sjkim 4556151937Sjkim---------------------------------------- 4557151937Sjkim10 December 2004. Summary of changes for version 20041210: 4558151937Sjkim 4559193267SjkimACPI 3.0 support is nearing completion in both the iASL compiler and the 4560193267SjkimACPI CA core subsystem. 4561151937Sjkim 4562151937Sjkim1) ACPI CA Core Subsystem: 4563151937Sjkim 4564193267SjkimFixed a problem in the ToDecimalString operator where the resulting string 4565193267Sjkimlength was incorrectly calculated. The length is now calculated exactly, 4566193267Sjkimeliminating incorrect AE_STRING_LIMIT exceptions. 4567151937Sjkim 4568193267SjkimFixed a problem in the ToHexString operator to allow a maximum 200 character 4569193267Sjkimstring to be produced. 4570151937Sjkim 4571193267SjkimFixed a problem in the internal string-to-buffer and buffer-to-buffer copy 4572193267Sjkimroutine where the length of the resulting buffer was not truncated to the 4573193267Sjkimnew size (if the target buffer already existed). 4574151937Sjkim 4575193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4576193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4577193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4578193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4579193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4580193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4581193267Sjkimthe compiler options used during generation. 4582151937Sjkim 4583151937Sjkim Previous Release: 4584151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4585151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 4586151937Sjkim Current Release: 4587151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4588151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 4589151937Sjkim 4590151937Sjkim 4591151937Sjkim2) iASL Compiler/Disassembler: 4592151937Sjkim 4593193267SjkimImplemented the new ACPI 3.0 resource template macros - DWordSpace, 4594193267SjkimExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace. 4595193267SjkimIncludes support in the disassembler. 4596151937Sjkim 4597193267SjkimImplemented support for the new (ACPI 3.0) parameter to the Register macro, 4598193267SjkimAccessSize. 4599151937Sjkim 4600193267SjkimFixed a problem where the _HE resource name for the Interrupt macro was 4601193267Sjkimreferencing bit 0 instead of bit 1. 4602151937Sjkim 4603193267SjkimImplemented check for maximum 255 interrupts in the Interrupt macro. 4604151937Sjkim 4605193267SjkimFixed a problem with the predefined resource descriptor names where 4606193267Sjkimincorrect AML code was generated if the offset within the resource buffer 4607193267Sjkimwas 0 or 1. The optimizer shortened the AML code to a single byte opcode 4608193267Sjkimbut did not update the surrounding package lengths. 4609151937Sjkim 4610193267SjkimChanges to the Dma macro: All channels within the channel list must be in 4611193267Sjkimthe range 0-7. Maximum 8 channels can be specified. BusMaster operand is 4612193267Sjkimoptional (default is BusMaster). 4613151937Sjkim 4614193267SjkimImplemented check for maximum 7 data bytes for the VendorShort macro. 4615151937Sjkim 4616193267SjkimThe ReadWrite parameter is now optional for the Memory32 and similar macros. 4617151937Sjkim 4618151937Sjkim---------------------------------------- 4619151937Sjkim03 December 2004. Summary of changes for version 20041203: 4620151937Sjkim 4621151937Sjkim1) ACPI CA Core Subsystem: 4622151937Sjkim 4623193267SjkimThe low-level field insertion/extraction code (exfldio) has been completely 4624193267Sjkimrewritten to eliminate unnecessary complexity, bugs, and boundary 4625193267Sjkimconditions. 4626151937Sjkim 4627193267SjkimFixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString 4628193267Sjkimoperators where the input operand could be inadvertently deleted if no 4629193267Sjkimconversion was necessary (e.g., if the input to ToInteger was an Integer 4630193267Sjkimobject.) 4631151937Sjkim 4632193267SjkimFixed a problem with the ToDecimalString and ToHexString where an incorrect 4633193267Sjkimexception code was returned if the resulting string would be > 200 chars. 4634193267SjkimAE_STRING_LIMIT is now returned. 4635151937Sjkim 4636193267SjkimFixed a problem with the Concatenate operator where AE_OK was always 4637193267Sjkimreturned, even if the operation failed. 4638151937Sjkim 4639193267SjkimFixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128 4640193267Sjkimsemaphores to be allocated. 4641151937Sjkim 4642193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4643193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4644193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4645193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4646193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4647193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4648193267Sjkimthe compiler options used during generation. 4649151937Sjkim 4650151937Sjkim Previous Release: 4651151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4652151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4653151937Sjkim Current Release: 4654151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4655151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 4656151937Sjkim 4657151937Sjkim 4658151937Sjkim2) iASL Compiler/Disassembler: 4659151937Sjkim 4660193267SjkimFixed typechecking for the ObjectType and SizeOf operators. Problem was 4661193267Sjkimrecently introduced in 20041119. 4662151937Sjkim 4663193267SjkimFixed a problem with the ToUUID macro where the upper nybble of each buffer 4664193267Sjkimbyte was inadvertently set to zero. 4665151937Sjkim 4666151937Sjkim---------------------------------------- 4667138287Smarks19 November 2004. Summary of changes for version 20041119: 4668138287Smarks 4669138287Smarks1) ACPI CA Core Subsystem: 4670138287Smarks 4671193267SjkimFixed a problem in the internal ConvertToInteger routine where new integers 4672193267Sjkimwere not truncated to 32 bits for 32-bit ACPI tables. This routine converts 4673193267Sjkimbuffers and strings to integers. 4674138287Smarks 4675193267SjkimImplemented support to store a value to an Index() on a String object. This 4676193267Sjkimis an ACPI 2.0 feature that had not yet been implemented. 4677138287Smarks 4678193267SjkimImplemented new behavior for storing objects to individual package elements 4679193267Sjkim(via the Index() operator). The previous behavior was to invoke the implicit 4680193267Sjkimconversion rules if an object was already present at the index. The new 4681193267Sjkimbehavior is to simply delete any existing object and directly store the new 4682193267Sjkimobject. Although the ACPI specification seems unclear on this subject, other 4683193267SjkimACPI implementations behave in this manner. (This is the root of the 4684193267SjkimAE_BAD_HEX_CONSTANT issue.) 4685138287Smarks 4686193267SjkimModified the RSDP memory scan mechanism to support the extended checksum for 4687193267SjkimACPI 2.0 (and above) RSDPs. Note that the search continues until a valid 4688193267SjkimRSDP signature is found with a valid checksum. 4689138287Smarks 4690193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4691193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4692193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4693193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4694193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4695193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4696193267Sjkimthe compiler options used during generation. 4697138287Smarks 4698151937Sjkim Previous Release: 4699151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4700151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4701151937Sjkim Current Release: 4702151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4703151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4704138287Smarks 4705138287Smarks 4706138287Smarks2) iASL Compiler/Disassembler: 4707138287Smarks 4708138287SmarksFixed a missing semicolon in the aslcompiler.y file. 4709138287Smarks 4710138287Smarks---------------------------------------- 4711138287Smarks05 November 2004. Summary of changes for version 20041105: 4712138287Smarks 4713138287Smarks1) ACPI CA Core Subsystem: 4714138287Smarks 4715193267SjkimImplemented support for FADT revision 2. This was an interim table (between 4716193267SjkimACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register. 4717138287Smarks 4718193267SjkimImplemented optional support to allow uninitialized LocalX and ArgX 4719193267Sjkimvariables in a control method. The variables are initialized to an Integer 4720193267Sjkimobject with a value of zero. This support is enabled by setting the 4721193267SjkimAcpiGbl_EnableInterpreterSlack flag to TRUE. 4722138287Smarks 4723193267SjkimImplemented support for Integer objects for the SizeOf operator. Either 4 4724193267Sjkimor 8 is returned, depending on the current integer size (32-bit or 64-bit, 4725193267Sjkimdepending on the parent table revision). 4726138287Smarks 4727193267SjkimFixed a problem in the implementation of the SizeOf and ObjectType operators 4728193267Sjkimwhere the operand was resolved to a value too early, causing incorrect 4729193267Sjkimreturn values for some objects. 4730138287Smarks 4731138287SmarksFixed some possible memory leaks during exceptional conditions. 4732138287Smarks 4733193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4734193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4735193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4736193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4737193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4738193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4739193267Sjkimthe compiler options used during generation. 4740138287Smarks 4741138287Smarks Previous Release: 4742138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 4743138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 4744138287Smarks Current Release: 4745138287Smarks Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4746138287Smarks Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4747138287Smarks 4748138287Smarks 4749138287Smarks2) iASL Compiler/Disassembler: 4750138287Smarks 4751138287SmarksImplemented support for all ACPI 3.0 reserved names and methods. 4752138287Smarks 4753193267SjkimImplemented all ACPI 3.0 grammar elements in the front-end, including 4754193267Sjkimsupport for semicolons. 4755138287Smarks 4756138287SmarksImplemented the ACPI 3.0 Function() and ToUUID() macros 4757138287Smarks 4758193267SjkimFixed a problem in the disassembler where a Scope() operator would not be 4759193267Sjkimemitted properly if the target of the scope was in another table. 4760138287Smarks 4761138287Smarks---------------------------------------- 4762138287Smarks15 October 2004. Summary of changes for version 20041015: 4763138287Smarks 4764193267SjkimNote: ACPI CA is currently undergoing an in-depth and complete formal 4765193267Sjkimevaluation to test/verify the following areas. Other suggestions are 4766193267Sjkimwelcome. This will result in an increase in the frequency of releases and 4767193267Sjkimthe number of bug fixes in the next few months. 4768138287Smarks - Functional tests for all ASL/AML operators 4769138287Smarks - All implicit/explicit type conversions 4770138287Smarks - Bit fields and operation regions 4771138287Smarks - 64-bit math support and 32-bit-only "truncated" math support 4772138287Smarks - Exceptional conditions, both compiler and interpreter 4773138287Smarks - Dynamic object deletion and memory leaks 4774138287Smarks - ACPI 3.0 support when implemented 4775138287Smarks - External interfaces to the ACPI subsystem 4776138287Smarks 4777138287Smarks 4778138287Smarks1) ACPI CA Core Subsystem: 4779138287Smarks 4780193267SjkimFixed two alignment issues on 64-bit platforms - within debug statements in 4781193267SjkimAcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address 4782193267Sjkimfield within the non-aligned ACPI generic address structure. 4783138287Smarks 4784193267SjkimFixed a problem in the Increment and Decrement operators where incorrect 4785193267Sjkimoperand resolution could result in the inadvertent modification of the 4786193267Sjkimoriginal integer when the integer is passed into another method as an 4787193267Sjkimargument and the arg is then incremented/decremented. 4788138287Smarks 4789193267SjkimFixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit 4790193267SjkimBCD number were truncated during conversion. 4791138287Smarks 4792193267SjkimFixed a problem in the ToDecimal operator where the length of the resulting 4793193267Sjkimstring could be set incorrectly too long if the input operand was a Buffer 4794193267Sjkimobject. 4795138287Smarks 4796193267SjkimFixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0) 4797193267Sjkimwithin a buffer would prematurely terminate a compare between buffer 4798193267Sjkimobjects. 4799138287Smarks 4800193267SjkimAdded a check for string overflow (>200 characters as per the ACPI 4801193267Sjkimspecification) during the Concatenate operator with two string operands. 4802138287Smarks 4803193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4804193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4805193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4806193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4807193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4808193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4809193267Sjkimthe compiler options used during generation. 4810138287Smarks 4811138287Smarks Previous Release: 4812138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 4813138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 4814138287Smarks Current Release: 4815138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 4816138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 4817138287Smarks 4818138287Smarks 4819167802Sjkim 4820138287Smarks2) iASL Compiler/Disassembler: 4821138287Smarks 4822193267SjkimAllow the use of the ObjectType operator on uninitialized Locals and Args 4823193267Sjkim(returns 0 as per the ACPI specification). 4824138287Smarks 4825193267SjkimFixed a problem where the compiler would fault if there was a syntax error 4826193267Sjkimin the FieldName of all of the various CreateXXXField operators. 4827138287Smarks 4828193267SjkimDisallow the use of lower case letters within the EISAID macro, as per the 4829193267SjkimACPI specification. All EISAID strings must be of the form "UUUNNNN" Where 4830193267SjkimU is an uppercase letter and N is a hex digit. 4831138287Smarks 4832138287Smarks 4833138287Smarks---------------------------------------- 4834138287Smarks06 October 2004. Summary of changes for version 20041006: 4835138287Smarks 4836138287Smarks1) ACPI CA Core Subsystem: 4837138287Smarks 4838193267SjkimImplemented support for the ACPI 3.0 Timer operator. This ASL function 4839193267Sjkimimplements a 64-bit timer with 100 nanosecond granularity. 4840138287Smarks 4841193267SjkimDefined a new OSL interface, AcpiOsGetTimer. This interface is used to 4842193267Sjkimimplement the ACPI 3.0 Timer operator. This allows the host OS to implement 4843193267Sjkimthe timer with the best clock available. Also, it keeps the core subsystem 4844193267Sjkimout of the clock handling business, since the host OS (usually) performs 4845193267Sjkimthis function. 4846138287Smarks 4847193267SjkimFixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write) 4848193267Sjkimfunctions use a 64-bit address which is part of the packed ACPI Generic 4849193267SjkimAddress Structure. Since the structure is non-aligned, the alignment macros 4850193267Sjkimare now used to extract the address to a local variable before use. 4851138287Smarks 4852193267SjkimFixed a problem where the ToInteger operator assumed all input strings were 4853193267Sjkimhexadecimal. The operator now handles both decimal strings and hex strings 4854193267Sjkim(prefixed with "0x"). 4855138287Smarks 4856193267SjkimFixed a problem where the string length in the string object created as a 4857193267Sjkimresult of the internal ConvertToString procedure could be incorrect. This 4858193267Sjkimpotentially affected all implicit conversions and also the ToDecimalString 4859193267Sjkimand ToHexString operators. 4860138287Smarks 4861193267SjkimFixed two problems in the ToString operator. If the length parameter was 4862193267Sjkimzero, an incorrect string object was created and the value of the input 4863193267Sjkimlength parameter was inadvertently changed from zero to Ones. 4864138287Smarks 4865193267SjkimFixed a problem where the optional ResourceSource string in the ExtendedIRQ 4866193267Sjkimresource macro was ignored. 4867138287Smarks 4868193267SjkimSimplified the interfaces to the internal division functions, reducing code 4869193267Sjkimsize and complexity. 4870138287Smarks 4871193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4872193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4873193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4874193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4875193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4876193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4877193267Sjkimthe compiler options used during generation. 4878138287Smarks 4879138287Smarks Previous Release: 4880138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 4881138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 4882138287Smarks Current Release: 4883138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 4884138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 4885138287Smarks 4886138287Smarks 4887138287Smarks2) iASL Compiler/Disassembler: 4888138287Smarks 4889138287SmarksImplemented support for the ACPI 3.0 Timer operator. 4890138287Smarks 4891193267SjkimFixed a problem where the Default() operator was inadvertently ignored in a 4892193267SjkimSwitch/Case block. This was a problem in the translation of the Switch 4893193267Sjkimstatement to If...Else pairs. 4894138287Smarks 4895193267SjkimAdded support to allow a standalone Return operator, with no parentheses (or 4896193267Sjkimoperands). 4897138287Smarks 4898193267SjkimFixed a problem with code generation for the ElseIf operator where the 4899193267Sjkimtranslated Else...If parse tree was improperly constructed leading to the 4900193267Sjkimloss of some code. 4901138287Smarks 4902138287Smarks---------------------------------------- 4903138287Smarks22 September 2004. Summary of changes for version 20040922: 4904138287Smarks 4905138287Smarks1) ACPI CA Core Subsystem: 4906138287Smarks 4907193267SjkimFixed a problem with the implementation of the LNot() operator where "Ones" 4908193267Sjkimwas not returned for the TRUE case. Changed the code to return Ones instead 4909193267Sjkimof (!Arg) which was usually 1. This change affects iASL constant folding for 4910193267Sjkimthis operator also. 4911138287Smarks 4912193267SjkimFixed a problem in AcpiUtInitializeBuffer where an existing buffer was not 4913193267Sjkiminitialized properly -- Now zero the entire buffer in this case where the 4914193267Sjkimbuffer already exists. 4915138287Smarks 4916193267SjkimChanged the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 4917193267SjkimMilliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all 4918193267Sjkimrelated code considerably. This will require changes/updates to all OS 4919193267Sjkiminterface layers (OSLs.) 4920138287Smarks 4921193267SjkimImplemented a new external interface, AcpiInstallExceptionHandler, to allow 4922193267Sjkima system exception handler to be installed. This handler is invoked upon any 4923193267Sjkimrun-time exception that occurs during control method execution. 4924138287Smarks 4925193267SjkimAdded support for the DSDT in AcpiTbFindTable. This allows the 4926138287SmarksDataTableRegion() operator to access the local copy of the DSDT. 4927138287Smarks 4928193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4929193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4930193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4931193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4932193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4933193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4934193267Sjkimthe compiler options used during generation. 4935138287Smarks 4936138287Smarks Previous Release: 4937138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 4938138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 4939138287Smarks Current Release: 4940138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 4941138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 4942138287Smarks 4943138287Smarks 4944138287Smarks2) iASL Compiler/Disassembler: 4945138287Smarks 4946193267SjkimFixed a problem with constant folding and the LNot operator. LNot was 4947193267Sjkimreturning 1 in the TRUE case, not Ones as per the ACPI specification. This 4948193267Sjkimcould result in the generation of an incorrect folded/reduced constant. 4949138287Smarks 4950193267SjkimEnd-Of-File is now allowed within a "//"-style comment. A parse error no 4951193267Sjkimlonger occurs if such a comment is at the very end of the input ASL source 4952193267Sjkimfile. 4953138287Smarks 4954193267SjkimImplemented the "-r" option to override the Revision in the table header. 4955193267SjkimThe initial use of this option will be to simplify the evaluation of the AML 4956193267Sjkiminterpreter by allowing a single ASL source module to be compiled for either 4957193267Sjkim32-bit or 64-bit integers. 4958138287Smarks 4959138287Smarks 4960138287Smarks---------------------------------------- 4961138287Smarks27 August 2004. Summary of changes for version 20040827: 4962138287Smarks 4963138287Smarks1) ACPI CA Core Subsystem: 4964138287Smarks 4965193267Sjkim- Implemented support for implicit object conversion in the non-numeric 4966193267Sjkimlogical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and 4967193267SjkimLNotEqual.) Any combination of Integers/Strings/Buffers may now be used; 4968193267Sjkimthe second operand is implicitly converted on the fly to match the type of 4969193267Sjkimthe first operand. For example: 4970138287Smarks 4971138287Smarks LEqual (Source1, Source2) 4972138287Smarks 4973193267SjkimSource1 and Source2 must each evaluate to an integer, a string, or a buffer. 4974193267SjkimThe data type of Source1 dictates the required type of Source2. Source2 is 4975193267Sjkimimplicitly converted if necessary to match the type of Source1. 4976138287Smarks 4977193267Sjkim- Updated and corrected the behavior of the string conversion support. The 4978193267Sjkimrules concerning conversion of buffers to strings (according to the ACPI 4979193267Sjkimspecification) are as follows: 4980138287Smarks 4981193267SjkimToDecimalString - explicit byte-wise conversion of buffer to string of 4982193267Sjkimdecimal values (0-255) separated by commas. ToHexString - explicit byte-wise 4983193267Sjkimconversion of buffer to string of hex values (0-FF) separated by commas. 4984193267SjkimToString - explicit byte-wise conversion of buffer to string. Byte-by-byte 4985193267Sjkimcopy with no transform except NULL terminated. Any other implicit buffer-to- 4986193267Sjkimstring conversion - byte-wise conversion of buffer to string of hex values 4987193267Sjkim(0-FF) separated by spaces. 4988138287Smarks 4989138287Smarks- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. 4990138287Smarks 4991193267Sjkim- Fixed a problem in AcpiNsGetPathnameLength where the returned length was 4992193267Sjkimone byte too short in the case of a node in the root scope. This could 4993193267Sjkimcause a fault during debug output. 4994138287Smarks 4995193267Sjkim- Code and Data Size: Current and previous core subsystem library sizes are 4996193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4997193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4998193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4999193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5000193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5001193267Sjkimthe compiler options used during generation. 5002138287Smarks 5003138287Smarks Previous Release: 5004138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5005138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5006138287Smarks Current Release: 5007138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5008138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5009138287Smarks 5010138287Smarks 5011138287Smarks2) iASL Compiler/Disassembler: 5012138287Smarks 5013138287Smarks- Fixed a Linux generation error. 5014138287Smarks 5015138287Smarks 5016138287Smarks---------------------------------------- 5017138287Smarks16 August 2004. Summary of changes for version 20040816: 5018138287Smarks 5019138287Smarks1) ACPI CA Core Subsystem: 5020138287Smarks 5021193267SjkimDesigned and implemented support within the AML interpreter for the so- 5022193267Sjkimcalled "implicit return". This support returns the result of the last ASL 5023193267Sjkimoperation within a control method, in the absence of an explicit Return() 5024193267Sjkimoperator. A few machines depend on this behavior, even though it is not 5025193267Sjkimexplicitly supported by the ASL language. It is optional support that can 5026193267Sjkimbe enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag. 5027138287Smarks 5028193267SjkimRemoved support for the PCI_Config address space from the internal low level 5029193267Sjkimhardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This 5030193267Sjkimsupport was not used internally, and would not work correctly anyway because 5031193267Sjkimthe PCI bus number and segment number were not supported. There are 5032193267Sjkimseparate interfaces for PCI configuration space access because of the unique 5033138287Smarksinterface. 5034138287Smarks 5035193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5036193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5037193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5038193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5039193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5040193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5041193267Sjkimthe compiler options used during generation. 5042138287Smarks 5043138287Smarks Previous Release: 5044138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5045138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5046138287Smarks Current Release: 5047138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5048138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5049138287Smarks 5050138287Smarks 5051138287Smarks2) iASL Compiler/Disassembler: 5052138287Smarks 5053193267SjkimFixed a problem where constants in ASL expressions at the root level (not 5054193267Sjkimwithin a control method) could be inadvertently truncated during code 5055193267Sjkimgeneration. This problem was introduced in the 20040715 release. 5056138287Smarks 5057138287Smarks 5058138287Smarks---------------------------------------- 5059138287Smarks15 July 2004. Summary of changes for version 20040715: 5060138287Smarks 5061138287Smarks1) ACPI CA Core Subsystem: 5062138287Smarks 5063193267SjkimRestructured the internal HW GPE interfaces to pass/track the current state 5064193267Sjkimof interrupts (enabled/disabled) in order to avoid possible deadlock and 5065193267Sjkimincrease flexibility of the interfaces. 5066138287Smarks 5067193267SjkimImplemented a "lexicographical compare" for String and Buffer objects within 5068193267Sjkimthe logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -- 5069193267Sjkimas per further clarification to the ACPI specification. Behavior is similar 5070193267Sjkimto C library "strcmp". 5071138287Smarks 5072193267SjkimCompleted a major reduction in CPU stack use for the AcpiGetFirmwareTable 5073193267Sjkimexternal function. In the 32-bit non-debug case, the stack use has been 5074193267Sjkimreduced from 168 bytes to 32 bytes. 5075138287Smarks 5076193267SjkimDeployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack, 5077193267Sjkimwhose purpose is to allow the AML interpreter to forgive certain bad AML 5078193267Sjkimconstructs. Default setting is FALSE. 5079138287Smarks 5080193267SjkimImplemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO 5081193267Sjkimsupport code. If enabled, it allows field access to go beyond the end of a 5082193267Sjkimregion definition if the field is within the region length rounded up to the 5083193267Sjkimnext access width boundary (a common coding error.) 5084138287Smarks 5085193267SjkimRenamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to 5086193267SjkimACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these 5087193267Sjkimsymbols are lowercased by the latest version of the AcpiSrc tool. 5088138287Smarks 5089193267SjkimThe prototypes for the PCI interfaces in acpiosxf.h have been updated to 5090193267Sjkimrename "Register" to simply "Reg" to prevent certain compilers from 5091193267Sjkimcomplaining. 5092138287Smarks 5093193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5094193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5095193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5096193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5097193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5098193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5099193267Sjkimthe compiler options used during generation. 5100138287Smarks 5101138287Smarks Previous Release: 5102138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5103138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5104138287Smarks Current Release: 5105138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5106138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5107138287Smarks 5108138287Smarks 5109138287Smarks2) iASL Compiler/Disassembler: 5110138287Smarks 5111193267SjkimImplemented full support for Package objects within the Case() operator. 5112193267SjkimNote: The Break() operator is currently not supported within Case blocks 5113193267Sjkim(TermLists) as there is some question about backward compatibility with ACPI 5114193267Sjkim1.0 interpreters. 5115138287Smarks 5116167802Sjkim 5117193267SjkimFixed a problem where complex terms were not supported properly within the 5118193267SjkimSwitch() operator. 5119138287Smarks 5120193267SjkimEliminated extraneous warning for compiler-emitted reserved names of the 5121193267Sjkimform "_T_x". (Used in Switch/Case operators.) 5122138287Smarks 5123193267SjkimEliminated optimization messages for "_T_x" objects and small constants 5124193267Sjkimwithin the DefinitionBlock operator. 5125138287Smarks 5126138287Smarks 5127138287Smarks---------------------------------------- 5128138287Smarks15 June 2004. Summary of changes for version 20040615: 5129138287Smarks 5130138287Smarks1) ACPI CA Core Subsystem: 5131138287Smarks 5132193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5133193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5134193267SjkimLLessEqual. 5135138287Smarks 5136193267SjkimAll directory names in the entire source package are lower case, as they 5137193267Sjkimwere in earlier releases. 5138138287Smarks 5139193267SjkimImplemented "Disassemble" command in the AML debugger that will disassemble 5140193267Sjkima single control method. 5141138287Smarks 5142193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5143193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5144193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5145193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5146193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5147193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5148193267Sjkimthe compiler options used during generation. 5149138287Smarks 5150138287Smarks Previous Release: 5151138287Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5152138287Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5153167802Sjkim 5154138287Smarks Current Release: 5155138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5156138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5157138287Smarks 5158138287Smarks 5159138287Smarks2) iASL Compiler/Disassembler: 5160138287Smarks 5161193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5162193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5163193267SjkimLLessEqual. 5164138287Smarks 5165193267SjkimAll directory names in the entire source package are lower case, as they 5166193267Sjkimwere in earlier releases. 5167138287Smarks 5168193267SjkimFixed a fault when using the -g or -d<nofilename> options if the FADT was 5169193267Sjkimnot found. 5170138287Smarks 5171193267SjkimFixed an issue with the Windows version of the compiler where later versions 5172193267Sjkimof Windows place the FADT in the registry under the name "FADT" and not 5173193267Sjkim"FACP" as earlier versions did. This applies when using the -g or - 5174193267Sjkimd<nofilename> options. The compiler now looks for both strings as 5175193267Sjkimnecessary. 5176138287Smarks 5177193267SjkimFixed a problem with compiler namepath optimization where a namepath within 5178193267Sjkimthe Scope() operator could not be optimized if the namepath was a subpath of 5179193267Sjkimthe current scope path. 5180138287Smarks 5181138287Smarks---------------------------------------- 5182131440Smarks27 May 2004. Summary of changes for version 20040527: 5183131440Smarks 5184131440Smarks1) ACPI CA Core Subsystem: 5185131440Smarks 5186193267SjkimCompleted a new design and implementation for EBDA (Extended BIOS Data Area) 5187193267Sjkimsupport in the RSDP scan code. The original code improperly scanned for the 5188193267SjkimEBDA by simply scanning from memory location 0 to 0x400. The correct method 5189193267Sjkimis to first obtain the EBDA pointer from within the BIOS data area, then 5190193267Sjkimscan 1K of memory starting at the EBDA pointer. There appear to be few if 5191131440Smarksany machines that place the RSDP in the EBDA, however. 5192131440Smarks 5193193267SjkimIntegrated a fix for a possible fault during evaluation of BufferField 5194193267Sjkimarguments. Obsolete code that was causing the problem was removed. 5195131440Smarks 5196193267SjkimFound and fixed a problem in the Field Support Code where data could be 5197193267Sjkimcorrupted on a bit field read that starts on an aligned boundary but does 5198193267Sjkimnot end on an aligned boundary. Merged the read/write "datum length" 5199193267Sjkimcalculation code into a common procedure. 5200131440Smarks 5201131440SmarksRolled in a couple of changes to the FreeBSD-specific header. 5202131440Smarks 5203167802Sjkim 5204193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5205193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5206193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5207193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5208193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5209193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5210193267Sjkimthe compiler options used during generation. 5211131440Smarks 5212131440Smarks Previous Release: 5213131440Smarks Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5214131440Smarks Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5215131440Smarks Current Release: 5216131440Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5217131440Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5218131440Smarks 5219131440Smarks 5220131440Smarks2) iASL Compiler/Disassembler: 5221131440Smarks 5222193267SjkimFixed a generation warning produced by some overly-verbose compilers for a 5223193267Sjkim64-bit constant. 5224131440Smarks 5225131440Smarks---------------------------------------- 5226129684Snjl14 May 2004. Summary of changes for version 20040514: 5227129684Snjl 5228129684Snjl1) ACPI CA Core Subsystem: 5229129684Snjl 5230193267SjkimFixed a problem where hardware GPE enable bits sometimes not set properly 5231193267Sjkimduring and after GPE method execution. Result of 04/27 changes. 5232129684Snjl 5233129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 5234129684Snjl 5235193267SjkimRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single 5236193267SjkimAcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to 5237193267Sjkimthe new AcpiEv* calls as appropriate. 5238129684Snjl 5239193267SjkimACPI_OS_NAME was removed from the OS-specific headers. The default name is 5240193267Sjkimnow "Microsoft Windows NT" for maximum compatibility. However this can be 5241193267Sjkimchanged by modifying the acconfig.h file. 5242129684Snjl 5243193267SjkimAllow a single invocation of AcpiInstallNotifyHandler for a handler that 5244193267Sjkimtraps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag. 5245129684Snjl 5246193267SjkimRun _INI methods on ThermalZone objects. This is against the ACPI 5247193267Sjkimspecification, but there is apparently ASL code in the field that has these 5248193267Sjkim_INI methods, and apparently "other" AML interpreters execute them. 5249129684Snjl 5250193267SjkimPerformed a full 16/32/64 bit lint that resulted in some small changes. 5251129684Snjl 5252193267SjkimAdded a sleep simulation command to the AML debugger to test sleep code. 5253129684Snjl 5254193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5255193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5256193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5257193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5258193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5259193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5260193267Sjkimthe compiler options used during generation. 5261129684Snjl 5262129684Snjl Previous Release: 5263129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5264129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5265129684Snjl Current Release: 5266129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5267129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5268129684Snjl 5269129684Snjl---------------------------------------- 5270129684Snjl27 April 2004. Summary of changes for version 20040427: 5271129684Snjl 5272129684Snjl1) ACPI CA Core Subsystem: 5273129684Snjl 5274193267SjkimCompleted a major overhaul of the GPE handling within ACPI CA. There are 5275193267Sjkimnow three types of GPEs: wake-only, runtime-only, and combination wake/run. 5276193267SjkimThe only GPEs allowed to be combination wake/run are for button-style 5277193267Sjkimdevices such as a control-method power button, control-method sleep button, 5278193267Sjkimor a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not 5279193267Sjkimreferenced by any _PRW methods are marked for "runtime" and hardware 5280193267Sjkimenabled. Any GPE that is referenced by a _PRW method is marked for "wake" 5281193267Sjkim(and disabled at runtime). However, at sleep time, only those GPEs that 5282193267Sjkimhave been specifically enabled for wake via the AcpiEnableGpe interface will 5283193267Sjkimactually be hardware enabled. 5284129684Snjl 5285193267SjkimA new external interface has been added, AcpiSetGpeType(), that is meant to 5286193267Sjkimbe used by device drivers to force a GPE to a particular type. It will be 5287193267Sjkimespecially useful for the drivers for the button devices mentioned above. 5288129684Snjl 5289193267SjkimCompleted restructuring of the ACPI CA initialization sequence so that 5290193267Sjkimdefault operation region handlers are installed before GPEs are initialized 5291193267Sjkimand the _PRW methods are executed. This will prevent errors when the _PRW 5292193267Sjkimmethods attempt to access system memory or I/O space. 5293129684Snjl 5294193267SjkimGPE enable/disable no longer reads the GPE enable register. We now keep the 5295193267Sjkimenable info for runtime and wake separate and in the GPE_EVENT_INFO. We 5296193267Sjkimthus no longer depend on the hardware to maintain these bits. 5297129684Snjl 5298193267SjkimAlways clear the wake status and fixed/GPE status bits before sleep, even 5299193267Sjkimfor state S5. 5300129684Snjl 5301193267SjkimImproved the AML debugger output for displaying the GPE blocks and their 5302193267Sjkimcurrent status. 5303129684Snjl 5304193267SjkimAdded new strings for the _OSI method, of the form "Windows 2001 SPx" where 5305193267Sjkimx = 0,1,2,3,4. 5306129684Snjl 5307193267SjkimFixed a problem where the physical address was incorrectly calculated when 5308193267Sjkimthe Load() operator was used to directly load from an Operation Region (vs. 5309193267Sjkimloading from a Field object.) Also added check for minimum table length for 5310193267Sjkimthis case. 5311129684Snjl 5312193267SjkimFix for multiple mutex acquisition. Restore original thread SyncLevel on 5313193267Sjkimmutex release. 5314129684Snjl 5315193267SjkimAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 5316129684Snjlconsistency with the other fields returned. 5317129684Snjl 5318193267SjkimShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such 5319193267Sjkimstructure for each GPE in the system, so the size of this structure is 5320193267Sjkimimportant. 5321129684Snjl 5322193267SjkimCPU stack requirement reduction: Cleaned up the method execution and object 5323193267Sjkimevaluation paths so that now a parameter structure is passed, instead of 5324193267Sjkimcopying the various method parameters over and over again. 5325129684Snjl 5326193267SjkimIn evregion.c: Correctly exit and reenter the interpreter region if and 5327193267Sjkimonly if dispatching an operation region request to a user-installed handler. 5328193267SjkimDo not exit/reenter when dispatching to a default handler (e.g., default 5329193267Sjkimsystem memory or I/O handlers) 5330129684Snjl 5331129684Snjl 5332193267SjkimNotes for updating drivers for the new GPE support. The following changes 5333193267Sjkimmust be made to ACPI-related device drivers that are attached to one or more 5334193267SjkimGPEs: (This information will be added to the ACPI CA Programmer Reference.) 5335129684Snjl 5336193267Sjkim1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must 5337193267Sjkimexplicitly call AcpiEnableGpe. 5338193267Sjkim2) There is a new interface called AcpiSetGpeType. This should be called 5339193267Sjkimbefore enabling the GPE. Also, this interface will automatically disable 5340193267Sjkimthe GPE if it is currently enabled. 5341129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 5342129684Snjl 5343129684SnjlSpecific drivers that must be changed: 5344129684Snjl1) EC driver: 5345193267Sjkim AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 5346129684SnjlAeGpeHandler, NULL); 5347129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 5348129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 5349129684Snjl 5350129684Snjl2) Button Drivers (Power, Lid, Sleep): 5351129684SnjlRun _PRW method under parent device 5352129684SnjlIf _PRW exists: /* This is a control-method button */ 5353129684Snjl Extract GPE number and possibly GpeDevice 5354129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 5355129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 5356129684Snjl 5357193267SjkimFor all other devices that have _PRWs, we automatically set the GPE type to 5358193267SjkimACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This 5359193267Sjkimmust be done on a selective basis, usually requiring some kind of user app 5360193267Sjkimto allow the user to pick the wake devices. 5361129684Snjl 5362129684Snjl 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. 5370129684Snjl 5371129684Snjl Previous Release: 5372129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5373129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5374129684Snjl Current Release: 5375167802Sjkim 5376129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5377129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5378129684Snjl 5379129684Snjl 5380129684Snjl 5381129684Snjl---------------------------------------- 5382128212Snjl02 April 2004. Summary of changes for version 20040402: 5383128212Snjl 5384128212Snjl1) ACPI CA Core Subsystem: 5385128212Snjl 5386193267SjkimFixed an interpreter problem where an indirect store through an ArgX 5387193267Sjkimparameter was incorrectly applying the "implicit conversion rules" during 5388193267Sjkimthe store. From the ACPI specification: "If the target is a method local or 5389193267Sjkimargument (LocalX or ArgX), no conversion is performed and the result is 5390193267Sjkimstored directly to the target". The new behavior is to disable implicit 5391193267Sjkimconversion during ALL stores to an ArgX. 5392128212Snjl 5393193267SjkimChanged the behavior of the _PRW method scan to ignore any and all errors 5394193267Sjkimreturned by a given _PRW. This prevents the scan from aborting from the 5395193267Sjkimfailure of any single _PRW. 5396128212Snjl 5397193267SjkimMoved the runtime configuration parameters from the global init procedure to 5398193267Sjkimstatic variables in acglobal.h. This will allow the host to override the 5399193267Sjkimdefault values easily. 5400128212Snjl 5401193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5402193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5403193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5404193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5405193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5406193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5407193267Sjkimthe compiler options used during generation. 5408128212Snjl 5409128212Snjl Previous Release: 5410128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5411128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5412128212Snjl Current Release: 5413128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5414128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5415128212Snjl 5416128212Snjl 5417128212Snjl2) iASL Compiler/Disassembler: 5418128212Snjl 5419193267SjkimiASL now fully disassembles SSDTs. However, External() statements are not 5420193267Sjkimgenerated automatically for unresolved symbols at this time. This is a 5421193267Sjkimplanned feature for future implementation. 5422128212Snjl 5423193267SjkimFixed a scoping problem in the disassembler that occurs when the type of the 5424193267Sjkimtarget of a Scope() operator is overridden. This problem caused an 5425193267Sjkimincorrectly nested internal namespace to be constructed. 5426128212Snjl 5427193267SjkimAny warnings or errors that are emitted during disassembly are now commented 5428193267Sjkimout automatically so that the resulting file can be recompiled without any 5429193267Sjkimhand editing. 5430128212Snjl 5431128212Snjl---------------------------------------- 5432128212Snjl26 March 2004. Summary of changes for version 20040326: 5433128212Snjl 5434128212Snjl1) ACPI CA Core Subsystem: 5435128212Snjl 5436193267SjkimImplemented support for "wake" GPEs via interaction between GPEs and the 5437193267Sjkim_PRW methods. Every GPE that is pointed to by one or more _PRWs is 5438193267Sjkimidentified as a WAKE GPE and by default will no longer be enabled at 5439193267Sjkimruntime. Previously, we were blindly enabling all GPEs with a corresponding 5440193267Sjkim_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We 5441193267Sjkimbelieve this has been the cause of thousands of "spurious" GPEs on some 5442128212Snjlsystems. 5443128212Snjl 5444193267SjkimThis new GPE behavior is can be reverted to the original behavior (enable 5445193267SjkimALL GPEs at runtime) via a runtime flag. 5446128212Snjl 5447193267SjkimFixed a problem where aliased control methods could not access objects 5448193267Sjkimproperly. The proper scope within the namespace was not initialized 5449193267Sjkim(transferred to the target of the aliased method) before executing the 5450193267Sjkimtarget method. 5451128212Snjl 5452193267SjkimFixed a potential race condition on internal object deletion on the return 5453193267Sjkimobject in AcpiEvaluateObject. 5454128212Snjl 5455193267SjkimIntegrated a fix for resource descriptors where both _MEM and _MTP were 5456193267Sjkimbeing extracted instead of just _MEM. (i.e. bitmask was incorrectly too 5457193267Sjkimwide, 0x0F instead of 0x03.) 5458128212Snjl 5459193267SjkimAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a 5460193267Sjkimfault in some cases. 5461128212Snjl 5462128212SnjlUpdated Notify() values for debug statements in evmisc.c 5463128212Snjl 5464193267SjkimReturn proper status from AcpiUtMutexInitialize, not just simply AE_OK. 5465128212Snjl 5466193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5467193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5468193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5469193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5470193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5471193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5472193267Sjkimthe compiler options used during generation. 5473128212Snjl 5474128212Snjl Previous Release: 5475167802Sjkim 5476128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 5477128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 5478128212Snjl Current Release: 5479128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5480128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5481128212Snjl 5482128212Snjl---------------------------------------- 5483127175Snjl11 March 2004. Summary of changes for version 20040311: 5484127175Snjl 5485127175Snjl1) ACPI CA Core Subsystem: 5486127175Snjl 5487193267SjkimFixed a problem where errors occurring during the parse phase of control 5488193267Sjkimmethod execution did not abort cleanly. For example, objects created and 5489193267Sjkiminstalled in the namespace were not deleted. This caused all subsequent 5490193267Sjkiminvocations of the method to return the AE_ALREADY_EXISTS exception. 5491127175Snjl 5492193267SjkimImplemented a mechanism to force a control method to "Serialized" execution 5493193267Sjkimif the method attempts to create namespace objects. (The root of the 5494193267SjkimAE_ALREADY_EXISTS problem.) 5495127175Snjl 5496193267SjkimImplemented support for the predefined _OSI "internal" control method. 5497193267SjkimInitial supported strings are "Linux", "Windows 2000", "Windows 2001", and 5498193267Sjkim"Windows 2001.1", and can be easily upgraded for new strings as necessary. 5499193267SjkimThis feature will allow "other" operating systems to execute the fully 5500193267Sjkimtested, "Windows" code path through the ASL code 5501127175Snjl 5502193267SjkimGlobal Lock Support: Now allows multiple acquires and releases with any 5503193267Sjkiminternal thread. Removed concept of "owning thread" for this special mutex. 5504127175Snjl 5505193267SjkimFixed two functions that were inappropriately declaring large objects on the 5506193267SjkimCPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during 5507193267Sjkimmethod execution considerably. 5508127175Snjl 5509193267SjkimFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the 5510193267SjkimS4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT. 5511127175Snjl 5512193267SjkimFixed a problem where AcpiEvGpeDetect would fault if there were no GPEs 5513193267Sjkimdefined on the machine. 5514127175Snjl 5515193267SjkimImplemented two runtime options: One to force all control method execution 5516193267Sjkimto "Serialized" to mimic Windows behavior, another to disable _OSI support 5517193267Sjkimif it causes problems on a given machine. 5518127175Snjl 5519193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5520193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5521193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5522193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5523193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5524193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5525193267Sjkimthe compiler options used during generation. 5526127175Snjl 5527127175Snjl Previous Release: 5528127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 5529127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 5530127175Snjl Current Release: 5531127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 5532127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 5533127175Snjl 5534127175Snjl2) iASL Compiler/Disassembler: 5535127175Snjl 5536193267SjkimFixed an array size problem for FreeBSD that would cause the compiler to 5537193267Sjkimfault. 5538127175Snjl 5539127175Snjl---------------------------------------- 5540126372Snjl20 February 2004. Summary of changes for version 20040220: 5541126372Snjl 5542167802Sjkim 5543126372Snjl1) ACPI CA Core Subsystem: 5544126372Snjl 5545193267SjkimImplemented execution of _SxD methods for Device objects in the 5546126372SnjlGetObjectInfo interface. 5547126372Snjl 5548126372SnjlFixed calls to _SST method to pass the correct arguments. 5549126372Snjl 5550126372SnjlAdded a call to _SST on wake to restore to "working" state. 5551126372Snjl 5552193267SjkimCheck for End-Of-Buffer failure case in the WalkResources interface. 5553126372Snjl 5554193267SjkimIntegrated fix for 64-bit alignment issue in acglobal.h by moving two 5555193267Sjkimstructures to the beginning of the file. 5556126372Snjl 5557126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 5558126372Snjl 5559193267SjkimAfter wake, clear/enable power button. (Perhaps we should clear/enable all 5560193267Sjkimfixed events upon wake.) 5561126372Snjl 5562126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 5563126372Snjl 5564126372SnjlIntegrated latest acnetbsd.h file. 5565126372Snjl 5566126372Snjl---------------------------------------- 5567126372Snjl11 February 2004. Summary of changes for version 20040211: 5568126372Snjl 5569167802Sjkim 5570126372Snjl1) ACPI CA Core Subsystem: 5571126372Snjl 5572193267SjkimCompleted investigation and implementation of the call-by-reference 5573193267Sjkimmechanism for control method arguments. 5574126372Snjl 5575193267SjkimFixed a problem where a store of an object into an indexed package could 5576193267Sjkimfail if the store occurs within a different method than the method that 5577193267Sjkimcreated the package. 5578126372Snjl 5579193267SjkimFixed a problem where the ToDecimal operator could return incorrect results. 5580126372Snjl 5581193267SjkimFixed a problem where the CopyObject operator could fail on some of the more 5582193267Sjkimobscure objects (e.g., Reference objects.) 5583126372Snjl 5584193267SjkimImproved the output of the Debug object to display buffer, package, and 5585193267Sjkimindex objects. 5586126372Snjl 5587193267SjkimFixed a problem where constructs of the form "RefOf (ArgX)" did not return 5588193267Sjkimthe expected result. 5589126372Snjl 5590193267SjkimAdded permanent ACPI_REPORT_ERROR macros for all instances of the 5591126372SnjlACPI_AML_INTERNAL exception. 5592126372Snjl 5593126372SnjlIntegrated latest version of acfreebsd.h 5594126372Snjl 5595126372Snjl---------------------------------------- 5596126372Snjl16 January 2004. Summary of changes for version 20040116: 5597126372Snjl 5598193267SjkimThe purpose of this release is primarily to update the copyright years in 5599193267Sjkimeach module, thus causing a huge number of diffs. There are a few small 5600193267Sjkimfunctional changes, however. 5601126372Snjl 5602126372Snjl1) ACPI CA Core Subsystem: 5603126372Snjl 5604193267SjkimImproved error messages when there is a problem finding one or more of the 5605193267Sjkimrequired base ACPI tables 5606126372Snjl 5607126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 5608126372Snjl 5609126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 5610126372Snjl 5611126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 5612126372Snjl 5613126372Snjl2) iASL compiler 5614126372Snjl 5615193267SjkimFixed a problem introduced in December that disabled the correct disassembly 5616193267Sjkimof Resource Templates 5617126372Snjl 5618126372Snjl 5619126372Snjl---------------------------------------- 5620126372Snjl03 December 2003. Summary of changes for version 20031203: 5621126372Snjl 5622126372Snjl1) ACPI CA Core Subsystem: 5623126372Snjl 5624126372SnjlChanged the initialization of Operation Regions during subsystem 5625126372Snjlinit to perform two entire walks of the ACPI namespace; The first 5626126372Snjlto initialize the regions themselves, the second to execute the 5627126372Snjl_REG methods. This fixed some interdependencies across _REG 5628126372Snjlmethods found on some machines. 5629126372Snjl 5630126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 5631126372Snjlthe object reference count, and not create a new copy of the 5632126372Snjlobject if the Local1 is uninitialized. 5633126372Snjl 5634126372SnjlImplemented support for the _SST reserved method during sleep 5635126372Snjltransitions. 5636126372Snjl 5637126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 5638126372Snjlwaking up, this is apparently required by some machines. 5639126372Snjl 5640193267SjkimWhen sleeping, clear the wake status only if SleepState is not S5. 5641126372Snjl 5642126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 5643126372Snjlpointer arithmetic advanced a string pointer too far. 5644126372Snjl 5645126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 5646126372Snjlcould be returned if the requested table has not been loaded. 5647126372Snjl 5648193267SjkimWithin the support for IRQ resources, restructured the handling of 5649126372Snjlthe active and edge/level bits. 5650126372Snjl 5651126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 5652126372Snjlleaked under certain error conditions. 5653126372Snjl 5654126372SnjlImproved error messages for the cases where the ACPI mode could 5655126372Snjlnot be entered. 5656126372Snjl 5657126372SnjlCode and Data Size: Current and previous core subsystem library 5658126372Snjlsizes are shown below. These are the code and data sizes for the 5659126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5660126372Snjlthese values do not include any ACPI driver or OSPM code. The 5661126372Snjldebug version of the code includes the debug output trace 5662126372Snjlmechanism and has a much larger code and data size. Note that 5663193267Sjkimthese values will vary depending on the efficiency of the compiler 5664126372Snjland the compiler options used during generation. 5665126372Snjl 5666126372Snjl Previous Release (20031029): 5667126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 5668126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 5669126372Snjl Current Release: 5670126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 5671126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 5672126372Snjl 5673126372Snjl2) iASL Compiler/Disassembler: 5674126372Snjl 5675126372SnjlImplemented a fix for the iASL disassembler where a bad index was 5676126372Snjlgenerated. This was most noticeable on 64-bit platforms 5677126372Snjl 5678126372Snjl 5679126372Snjl---------------------------------------- 5680126372Snjl29 October 2003. Summary of changes for version 20031029: 5681126372Snjl 5682126372Snjl1) ACPI CA Core Subsystem: 5683126372Snjl 5684167802Sjkim 5685126372SnjlFixed a problem where a level-triggered GPE with an associated 5686126372Snjl_Lxx control method was incorrectly cleared twice. 5687126372Snjl 5688126372SnjlFixed a problem with the Field support code where an access can 5689126372Snjloccur beyond the end-of-region if the field is non-aligned but 5690126372Snjlextends to the very end of the parent region (resulted in an 5691126372SnjlAE_AML_REGION_LIMIT exception.) 5692126372Snjl 5693126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 5694193267Sjkimwould not get invoked on an RTC event. The RTC event bitmasks for 5695126372Snjlthe PM1 registers were not being initialized properly. 5696126372Snjl 5697126372SnjlImplemented support for executing _STA and _INI methods for 5698126372SnjlProcessor objects. Although this is currently not part of the 5699193267SjkimACPI specification, there is existing ASL code that depends on the 5700126372Snjlinit-time execution of these methods. 5701126372Snjl 5702126372SnjlImplemented and deployed a GetDescriptorName function to decode 5703126372Snjlthe various types of internal descriptors. Guards against null 5704126372Snjldescriptors during debug output also. 5705126372Snjl 5706126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 5707193267Sjkimcharacter namespace node name. This function simplifies the debug 5708193267Sjkimand error output, as well as guarding against null pointers during 5709126372Snjloutput. 5710126372Snjl 5711126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 5712126372Snjlsimplify the debug and error output of 64-bit integers. This 5713126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 5714126372Snjlintegers. 5715126372Snjl 5716126372SnjlUpdated the implementation of the Stall() operator to only call 5717126372SnjlAcpiOsStall(), and also return an error if the operand is larger 5718126372Snjlthan 255. This preserves the required behavior of not 5719126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 5720126372Snjlcalled for "long stalls". 5721126372Snjl 5722126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 5723126372Snjlinitialized are now treated as NOOPs. 5724126372Snjl 5725126372SnjlCleaned up a handful of warnings during 64-bit generation. 5726126372Snjl 5727126372SnjlFixed a reported error where and incorrect GPE number was passed 5728126372Snjlto the GPE dispatch handler. This value is only used for error 5729193267Sjkimoutput, however. Used this opportunity to clean up and streamline 5730126372Snjlthe GPE dispatch code. 5731126372Snjl 5732126372SnjlCode and Data Size: Current and previous core subsystem library 5733126372Snjlsizes are shown below. These are the code and data sizes for the 5734126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5735126372Snjlthese values do not include any ACPI driver or OSPM code. The 5736167802Sjkim 5737126372Snjldebug version of the code includes the debug output trace 5738126372Snjlmechanism and has a much larger code and data size. Note that 5739193267Sjkimthese values will vary depending on the efficiency of the compiler 5740126372Snjland the compiler options used during generation. 5741126372Snjl 5742126372Snjl Previous Release (20031002): 5743126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 5744126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 5745126372Snjl Current Release: 5746126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 5747126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 5748126372Snjl 5749126372Snjl 5750126372Snjl2) iASL Compiler/Disassembler: 5751126372Snjl 5752193267SjkimUpdated the iASL compiler to return an error if the operand to the 5753126372SnjlStall() operator is larger than 255. 5754126372Snjl 5755126372Snjl 5756126372Snjl---------------------------------------- 5757126372Snjl02 October 2003. Summary of changes for version 20031002: 5758126372Snjl 5759126372Snjl 5760126372Snjl1) ACPI CA Core Subsystem: 5761126372Snjl 5762126372SnjlFixed a problem with Index Fields where the index was not 5763126372Snjlincremented for fields that require multiple writes to the 5764126372Snjlindex/data registers (Fields that are wider than the data 5765126372Snjlregister.) 5766126372Snjl 5767126372SnjlFixed a problem with all Field objects where a write could go 5768126372Snjlbeyond the end-of-field if the field was larger than the access 5769193267Sjkimgranularity and therefore required multiple writes to complete the 5770126372Snjlrequest. An extra write beyond the end of the field could happen 5771126372Snjlinadvertently. 5772126372Snjl 5773126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 5774126372Snjlwould incorrectly be returned if the width of the Data Register 5775126372Snjlwas larger than the specified field access width. 5776126372Snjl 5777126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 5778126372Snjloperation. Implemented full support for the "DdbHandle" object 5779126372Snjlthroughout the ACPI CA subsystem. 5780126372Snjl 5781126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 5782126372SnjlCA header files. Even though these tables are not directly 5783126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 5784126372Snjldevice drivers. 5785126372Snjl 5786126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 5787126372Snjllist. This included checks for minimum descriptor length, and 5788126372Snjlsupport for trailing NULL strings within descriptors that have 5789126372Snjloptional string elements. 5790126372Snjl 5791126372SnjlCode and Data Size: Current and previous core subsystem library 5792126372Snjlsizes are shown below. These are the code and data sizes for the 5793126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5794126372Snjlthese values do not include any ACPI driver or OSPM code. The 5795126372Snjldebug version of the code includes the debug output trace 5796126372Snjlmechanism and has a much larger code and data size. Note that 5797193267Sjkimthese values will vary depending on the efficiency of the compiler 5798126372Snjland the compiler options used during generation. 5799126372Snjl 5800126372Snjl Previous Release (20030918): 5801126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 5802126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 5803126372Snjl Current Release: 5804126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 5805126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 5806126372Snjl 5807126372Snjl 5808126372Snjl2) iASL Compiler: 5809126372Snjl 5810126372SnjlImplemented detection of non-ASCII characters within the input 5811126372Snjlsource ASL file. This catches attempts to compile binary (AML) 5812126372Snjlfiles early in the compile, with an informative error message. 5813126372Snjl 5814126372SnjlFixed a problem where the disassembler would fault if the output 5815193267Sjkimfilename could not be generated or if the output file could not be 5816126372Snjlopened. 5817126372Snjl 5818126372Snjl---------------------------------------- 5819126372Snjl18 September 2003. Summary of changes for version 20030918: 5820126372Snjl 5821126372Snjl 5822126372Snjl1) ACPI CA Core Subsystem: 5823126372Snjl 5824126372SnjlFound and fixed a longstanding problem with the late execution of 5825126372Snjlthe various deferred AML opcodes (such as Operation Regions, 5826126372SnjlBuffer Fields, Buffers, and Packages). If the name string 5827126372Snjlspecified for the name of the new object placed the object in a 5828126372Snjlscope other than the current scope, the initialization/execution 5829126372Snjlof the opcode failed. The solution to this problem was to 5830126372Snjlimplement a mechanism where the late execution of such opcodes 5831126372Snjldoes not attempt to lookup/create the name a second time in an 5832126372Snjlincorrect scope. This fixes the "region size computed 5833126372Snjlincorrectly" problem. 5834126372Snjl 5835193267SjkimFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a 5836126372SnjlGlobal Lock AE_BAD_PARAMETER error. 5837126372Snjl 5838126372SnjlFixed several 64-bit issues with prototypes, casting and data 5839126372Snjltypes. 5840126372Snjl 5841126372SnjlRemoved duplicate prototype from acdisasm.h 5842126372Snjl 5843126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 5844126372Snjl 5845126372SnjlCode and Data Size: Current and previous core subsystem library 5846126372Snjlsizes are shown below. These are the code and data sizes for the 5847126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5848126372Snjlthese values do not include any ACPI driver or OSPM code. The 5849126372Snjldebug version of the code includes the debug output trace 5850126372Snjlmechanism and has a much larger code and data size. Note that 5851193267Sjkimthese values will vary depending on the efficiency of the compiler 5852126372Snjland the compiler options used during generation. 5853126372Snjl 5854126372Snjl Previous Release: 5855167802Sjkim 5856126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 5857126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 5858126372Snjl Current Release: 5859126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 5860126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 5861126372Snjl 5862126372Snjl 5863126372Snjl2) Linux: 5864126372Snjl 5865126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 5866126372Snjlcorrect sleep time in seconds. 5867126372Snjl 5868126372Snjl---------------------------------------- 5869126372Snjl14 July 2003. Summary of changes for version 20030619: 5870126372Snjl 5871126372Snjl1) ACPI CA Core Subsystem: 5872126372Snjl 5873126372SnjlParse SSDTs in order discovered, as opposed to reverse order 5874126372Snjl(Hrvoje Habjanic) 5875126372Snjl 5876126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 5877126372SnjlKlausner, 5878126372Snjl Nate Lawson) 5879126372Snjl 5880126372Snjl 5881126372Snjl2) Linux: 5882126372Snjl 5883126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 5884126372Snjl 5885126372Snjlproc function return value cleanups (Andi Kleen) 5886126372Snjl 5887126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 5888126372Snjl 5889126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 5890126372Snjl 5891126372Snjl 5892126372Snjl---------------------------------------- 5893117521Snjl19 June 2003. Summary of changes for version 20030619: 5894117521Snjl 5895117521Snjl1) ACPI CA Core Subsystem: 5896117521Snjl 5897193267SjkimFix To/FromBCD, eliminating the need for an arch-specific #define. 5898117521Snjl 5899117521SnjlDo not acquire a semaphore in the S5 shutdown path. 5900117521Snjl 5901117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 5902117521Snjl 5903117521SnjlFix sleep/stall code reversal. (Andi Kleen) 5904117521Snjl 5905117521SnjlRevert a change having to do with control method calling 5906117521Snjlsemantics. 5907117521Snjl 5908117521Snjl2) Linux: 5909117521Snjl 5910117521Snjlacpiphp update (Takayoshi Kochi) 5911117521Snjl 5912117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 5913117521Snjl 5914117521SnjlMention acpismp=force in config help 5915117521Snjl 5916117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 5917167802Sjkim 5918193267Sjkimcompatibility and also cleans up the code to a significant degree. 5919117521Snjl 5920117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 5921117521Snjl 5922117521Snjl---------------------------------------- 5923117521Snjl22 May 2003. Summary of changes for version 20030522: 5924117521Snjl 5925117521Snjl1) ACPI CA Core Subsystem: 5926117521Snjl 5927117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 5928117521Snjloccurred occasionally during _BST evaluation. This turned out to 5929117521Snjlbe an Owner ID allocation issue where a called method did not get 5930193267Sjkima new ID assigned to it. Eventually, (after 64k calls), the Owner 5931193267SjkimID UINT16 would wraparound so that the ID would be the same as the 5932126372Snjlcaller's and the called method would delete the caller's 5933117521Snjlnamespace. 5934117521Snjl 5935117521SnjlImplemented extended error reporting for control methods that are 5936117521Snjlaborted due to a run-time exception. Output includes the exact 5937193267SjkimAML instruction that caused the method abort, a dump of the method 5938126372Snjllocals and arguments at the time of the abort, and a trace of all 5939126372Snjlnested control method calls. 5940117521Snjl 5941117521SnjlModified the interpreter to allow the creation of buffers of zero 5942117521Snjllength from the AML code. Implemented new code to ensure that no 5943117521Snjlattempt is made to actually allocate a memory buffer (of length 5944193267Sjkimzero) - instead, a simple buffer object with a NULL buffer pointer 5945126372Snjland length zero is created. A warning is no longer issued when 5946126372Snjlthe AML attempts to create a zero-length buffer. 5947117521Snjl 5948117521SnjlImplemented a workaround for the "leading asterisk issue" in 5949117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 5950117521Snjlasterisk is automatically removed if present in any HID, UID, or 5951117521SnjlCID strings. The iASL compiler will still flag this asterisk as 5952117521Snjlan error, however. 5953117521Snjl 5954193267SjkimImplemented full support for _CID methods that return a package of 5955193267Sjkimmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface 5956126372Snjlnow additionally returns a device _CID list if present. This 5957126372Snjlrequired a change to the external interface in order to pass an 5958126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 5959117521Snjlvariable length. 5960117521Snjl 5961117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 5962117521Snjlhandler initialization code did not know about this exception. 5963117521Snjl 5964117521SnjlCode and Data Size: Current and previous core subsystem library 5965117521Snjlsizes are shown below. These are the code and data sizes for the 5966117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5967117521Snjlthese values do not include any ACPI driver or OSPM code. The 5968117521Snjldebug version of the code includes the debug output trace 5969117521Snjlmechanism and has a much larger code and data size. Note that 5970193267Sjkimthese values will vary depending on the efficiency of the compiler 5971126372Snjland the compiler options used during generation. 5972117521Snjl 5973117521Snjl Previous Release (20030509): 5974117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 5975117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 5976117521Snjl Current Release: 5977117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 5978117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 5979117521Snjl 5980117521Snjl 5981117521Snjl2) Linux: 5982117521Snjl 5983117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 5984193267Sjkimafter it was already working, thus disabling all ACPI and the IRQs 5985126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 5986117521SnjlJordet) 5987117521Snjl 5988117521SnjlToshiba driver update (John Belmonte) 5989117521Snjl 5990117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 5991117521SnjlMorton) 5992117521Snjl 5993117521Snjl 5994117521Snjl3) iASL Compiler: 5995117521Snjl 5996117521SnjlFixed a reported problem where multiple (nested) ElseIf() 5997117521Snjlstatements were not handled correctly by the compiler, resulting 5998117521Snjlin incorrect warnings and incorrect AML code. This was a problem 5999117521Snjlin both the ASL parser and the code generator. 6000117521Snjl 6001117521Snjl 6002117521Snjl4) Documentation: 6003117521Snjl 6004193267SjkimAdded changes to existing interfaces, new exception codes, and new 6005126372Snjltext concerning reference count object management versus garbage 6006126372Snjlcollection. 6007117521Snjl 6008117521Snjl---------------------------------------- 6009117521Snjl09 May 2003. Summary of changes for version 20030509. 6010117521Snjl 6011117521Snjl 6012117521Snjl1) ACPI CA Core Subsystem: 6013117521Snjl 6014117521SnjlChanged the subsystem initialization sequence to hold off 6015193267Sjkiminstallation of address space handlers until the hardware has been 6016193267Sjkiminitialized and the system has entered ACPI mode. This is because 6017126372Snjlthe installation of space handlers can cause _REG methods to be 6018193267Sjkimrun. Previously, the _REG methods could potentially be run before 6019126372SnjlACPI mode was enabled. 6020117521Snjl 6021193267SjkimFixed some memory leak issues related to address space handler and 6022126372Snjlnotify handler installation. There were some problems with the 6023126372Snjlreference count mechanism caused by the fact that the handler 6024117521Snjlobjects are shared across several namespace objects. 6025117521Snjl 6026117521SnjlFixed a reported problem where reference counts within the 6027117521Snjlnamespace were not properly updated when named objects created by 6028117521Snjlmethod execution were deleted. 6029117521Snjl 6030117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 6031117521Snjlissue during subsystem termination. Restructured the table data 6032117521Snjlstructures to simplify the linked lists and the related code. 6033117521Snjl 6034117521SnjlFixed a problem where the table ID associated with secondary 6035193267Sjkimtables (SSDTs) was not being propagated into the namespace objects 6036126372Snjlcreated by those tables. This would only present a problem for 6037126372Snjltables that are unloaded at run-time, however. 6038117521Snjl 6039117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 6040117521Snjltype as the length parameter (instead of UINT32). 6041117521Snjl 6042117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 6043117521Snjlappears on various systems. This problem could happen when there 6044117521Snjlare multiple PCI_Config operation regions under a single PCI root 6045117521Snjlbus. This doesn't happen very frequently, but there are some 6046117521Snjlsystems that do this in the ASL. 6047117521Snjl 6048117521SnjlFixed a reported problem where the internal DeleteNode function 6049117521Snjlwas incorrectly handling the case where a namespace node was the 6050117521Snjlfirst in the parent's child list, and had additional peers (not 6051117521Snjlthe only child, but first in the list of children.) 6052117521Snjl 6053193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6054126372Snjlbelow. These are the code and data sizes for the acpica.lib 6055126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6056126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6057126372Snjlversion of the code includes the debug output trace mechanism and 6058193267Sjkimhas a much larger code and data size. Note that these values will 6059126372Snjlvary depending on the efficiency of the compiler and the compiler 6060126372Snjloptions used during generation. 6061117521Snjl 6062117521Snjl Previous Release 6063117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6064117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6065117521Snjl Current Release: 6066117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6067117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6068117521Snjl 6069117521Snjl 6070117521Snjl2) Linux: 6071117521Snjl 6072117521SnjlAllow ":" in OS override string (Ducrot Bruno) 6073117521Snjl 6074117521SnjlKobject fix (Greg KH) 6075117521Snjl 6076117521Snjl 6077117521Snjl3 iASL Compiler/Disassembler: 6078117521Snjl 6079117521SnjlFixed a problem in the generation of the C source code files (AML 6080117521Snjlis emitted in C source statements for BIOS inclusion) where the 6081193267SjkimAscii dump that appears within a C comment at the end of each line 6082126372Snjlcould cause a compile time error if the AML sequence happens to 6083126372Snjlhave an open comment or close comment sequence embedded. 6084117521Snjl 6085117521Snjl 6086117521Snjl---------------------------------------- 6087117521Snjl24 April 2003. Summary of changes for version 20030424. 6088117521Snjl 6089117521Snjl 6090117521Snjl1) ACPI CA Core Subsystem: 6091117521Snjl 6092117521SnjlSupport for big-endian systems has been implemented. Most of the 6093193267Sjkimsupport has been invisibly added behind big-endian versions of the 6094126372SnjlACPI_MOVE_* macros. 6095117521Snjl 6096117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 6097117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 6098117521Snjllow level hardware write routine. The offset parameter was 6099193267Sjkimactually eliminated from the low level read/write routines because 6100126372Snjlthey had become obsolete. 6101117521Snjl 6102117521SnjlFixed a problem where a handler object was deleted twice during 6103117521Snjlthe removal of a fixed event handler. 6104117521Snjl 6105117521Snjl 6106117521Snjl2) Linux: 6107117521Snjl 6108117521SnjlA fix for SMP systems with link devices was contributed by 6109167802Sjkim 6110117521SnjlCompaq's Dan Zink. 6111117521Snjl 6112117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 6113193267Sjkim(Linux ISRs no longer return void, so we can propagate the handler 6114126372Snjlreturn value from the ACPI CA core back to the OS.) 6115117521Snjl 6116117521Snjl 6117167802Sjkim 6118117521Snjl3) Documentation: 6119117521Snjl 6120117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 6121117521Snjlinterfaces and changes to existing interfaces. 6122117521Snjl 6123117521Snjl---------------------------------------- 6124117521Snjl28 March 2003. Summary of changes for version 20030328. 6125117521Snjl 6126117521Snjl1) ACPI CA Core Subsystem: 6127117521Snjl 6128117521SnjlThe GPE Block Device support has been completed. New interfaces 6129117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 6130117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 6131117521Snjlinto separate interfaces for Fixed Events and General Purpose 6132117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 6133117521Snjl 6134117521SnjlFixed a problem where the error message "Failed to acquire 6135117521Snjlsemaphore" would appear during operations on the embedded 6136117521Snjlcontroller (EC). 6137117521Snjl 6138193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6139126372Snjlbelow. These are the code and data sizes for the acpica.lib 6140126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6141126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6142126372Snjlversion of the code includes the debug output trace mechanism and 6143193267Sjkimhas a much larger code and data size. Note that these values will 6144126372Snjlvary depending on the efficiency of the compiler and the compiler 6145126372Snjloptions used during generation. 6146117521Snjl 6147117521Snjl Previous Release 6148117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6149117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6150117521Snjl Current Release: 6151117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6152117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6153117521Snjl 6154117521Snjl 6155117521Snjl---------------------------------------- 6156114237Snjl28 February 2003. Summary of changes for version 20030228. 6157114237Snjl 6158114237Snjl 6159114237Snjl1) ACPI CA Core Subsystem: 6160114237Snjl 6161114237SnjlThe GPE handling and dispatch code has been completely overhauled 6162114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 6163114237SnjlThis affects internal data structures and code only; there should 6164114237Snjlbe no differences visible externally. One new file has been 6165114237Snjladded, evgpeblk.c 6166114237Snjl 6167114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 6168114237Snjlfields that are used to determine the GPE block lengths. The 6169114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 6170193267Sjkimstructures are ignored. This is per the ACPI specification but it 6171126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 6172193267Sjkim(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128). 6173114237Snjl 6174114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 6175114237Snjlregister to look at the SCI_EN bit. On some machines, this read 6176114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 6177114237Snjlin fact be the cause of slow battery status response on some 6178114237Snjlsystems.) 6179114237Snjl 6180193267SjkimFixed a problem where a store of a NULL string to a package object 6181126372Snjlcould cause the premature deletion of the object. This was seen 6182126372Snjlduring execution of the battery _BIF method on some systems, 6183126372Snjlresulting in no battery data being returned. 6184114237Snjl 6185114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 6186114237Snjllists. 6187114237Snjl 6188193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6189126372Snjlbelow. These are the code and data sizes for the acpica.lib 6190126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6191126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6192126372Snjlversion of the code includes the debug output trace mechanism and 6193193267Sjkimhas a much larger code and data size. Note that these values will 6194126372Snjlvary depending on the efficiency of the compiler and the compiler 6195126372Snjloptions used during generation. 6196114237Snjl 6197114237Snjl Previous Release 6198114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6199114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6200114237Snjl Current Release: 6201114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6202114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6203114237Snjl 6204114237Snjl 6205114237Snjl2) Linux 6206114237Snjl 6207114237SnjlS3 fixes (Ole Rohne) 6208114237Snjl 6209114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 6210114237Snjl(Bjorn Helgaas) 6211114237Snjl 6212114237SnjlAdd S4BIOS support (Pavel Machek) 6213114237Snjl 6214114237SnjlMap in entire table before performing checksum (John Stultz) 6215114237Snjl 6216193267SjkimExpand the mem= cmdline to allow the specification of reserved and 6217126372SnjlACPI DATA blocks (Pavel Machek) 6218114237Snjl 6219114237SnjlNever use ACPI on VISWS 6220114237Snjl 6221114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 6222114237Snjl 6223114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 6224114237Snjlcausing us to think that some systems support C2 when they really 6225114237Snjldon't. 6226114237Snjl 6227114237SnjlDo not count processor objects for non-present CPUs (Thanks to 6228114237SnjlDominik Brodowski) 6229114237Snjl 6230114237Snjl 6231114237Snjl3) iASL Compiler: 6232114237Snjl 6233114237SnjlFixed a problem where ASL include files could not be found and 6234114237Snjlopened. 6235114237Snjl 6236114237SnjlAdded support for the _PDC reserved name. 6237114237Snjl 6238114237Snjl 6239117521Snjl---------------------------------------- 6240114237Snjl22 January 2003. Summary of changes for version 20030122. 6241114237Snjl 6242114237Snjl 6243114237Snjl1) ACPI CA Core Subsystem: 6244114237Snjl 6245114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 6246114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 6247193267Sjkimprogrammers believe that this is a NOOP. Since this store doesn't 6248126372Snjldo anything anyway, the new prototype behavior will ignore this 6249126372Snjlerror. This is a case where we can relax the strict checking in 6250126372Snjlthe interpreter in the name of compatibility. 6251114237Snjl 6252114237Snjl 6253114237Snjl2) Linux 6254114237Snjl 6255114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 6256114237SnjlLinux package for the first time. This is the utility that is 6257193267Sjkimused to convert the ACPI CA base source code to the Linux version. 6258114237Snjl 6259114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 6260114237Snjl 6261114237Snjl(Both) Move more headers to include/acpi, and delete an unused 6262114237Snjlheader. 6263114237Snjl 6264114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 6265114237Snjl 6266114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 6267114237Snjl 6268114237Snjl(Both) Remove include of unused header (Adrian Bunk) 6269114237Snjl 6270114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 6271114237Snjlthe 6272193267Sjkimformer now also includes the latter, acpiphp.h only needs the one, 6273126372Snjlnow. 6274114237Snjl 6275193267Sjkim(2.5) Make it possible to select method of bios restoring after S3 6276114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 6277114237Snjl 6278114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 6279114237Snjl 6280114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 6281114237Snjl 6282114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 6283114237Snjl(Dominik Brodowski) 6284114237Snjl 6285114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 6286114237Snjl 6287114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 6288114237SnjlVisinoni) 6289114237Snjl 6290114237Snjl 6291114237Snjl3) iASL Compiler: 6292114237Snjl 6293114237SnjlAdded support to disassemble SSDT and PSDTs. 6294114237Snjl 6295114237SnjlImplemented support to obtain SSDTs from the Windows registry if 6296114237Snjlavailable. 6297114237Snjl 6298114237Snjl 6299102550Siwasaki---------------------------------------- 6300114237Snjl09 January 2003. Summary of changes for version 20030109. 6301114237Snjl 6302114237Snjl1) ACPI CA Core Subsystem: 6303114237Snjl 6304114237SnjlChanged the behavior of the internal Buffer-to-String conversion 6305193267Sjkimfunction. The current ACPI specification states that the contents 6306126372Snjlof the buffer are "converted to a string of two-character 6307126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 6308193267Sjkimthis definition is not backwards compatible with existing ACPI 1.0 6309193267Sjkimimplementations (although the behavior was not defined in the ACPI 6310126372Snjl1.0 specification). The new behavior simply copies data from the 6311193267Sjkimbuffer to the string until a null character is found or the end of 6312126372Snjlthe buffer is reached. The new String object is always null 6313126372Snjlterminated. This problem was seen during the generation of _BIF 6314126372Snjlbattery data where incorrect strings were returned for battery 6315126372Snjltype, etc. This will also require an errata to the ACPI 6316126372Snjlspecification. 6317114237Snjl 6318114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 6319114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 6320114237Snjl 6321114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 6322114237Snjlupdated to 2003. 6323114237Snjl 6324193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6325126372Snjlbelow. These are the code and data sizes for the acpica.lib 6326126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6327126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6328126372Snjlversion of the code includes the debug output trace mechanism and 6329193267Sjkimhas a much larger code and data size. Note that these values will 6330126372Snjlvary depending on the efficiency of the compiler and the compiler 6331126372Snjloptions used during generation. 6332114237Snjl 6333114237Snjl Previous Release 6334114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6335114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6336114237Snjl Current Release: 6337114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6338114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6339114237Snjl 6340114237Snjl 6341114237Snjl2) Linux 6342114237Snjl 6343114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 6344114237Snjl 6345114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 6346114237Snjl 6347114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 6348114237Snjl 6349114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 6350114237Snjl 6351114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 6352114237Snjlof schedule_work() 6353114237Snjl 6354114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 6355114237Snjl 6356114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 6357114237Snjl 6358114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 6359114237Snjl 6360114237SnjlSeveral changes have been made to the source code translation 6361114237Snjlutility that generates the Linux Code in order to make the code 6362114237Snjlmore "Linux-like": 6363114237Snjl 6364114237SnjlAll typedefs on structs and unions have been removed in keeping 6365114237Snjlwith the Linux coding style. 6366114237Snjl 6367114237SnjlRemoved the non-Linux SourceSafe module revision number from each 6368114237Snjlmodule header. 6369114237Snjl 6370114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 6371114237SnjlDoubled the number of symbols that are lowercased. 6372114237Snjl 6373114237SnjlFixed a problem where identifiers within procedure headers and 6374114237Snjlwithin quotes were not fully lower cased (they were left with a 6375114237Snjlstarting capital.) 6376114237Snjl 6377114237SnjlSome C macros whose only purpose is to allow the generation of 16- 6378114237Snjlbit code are now completely removed in the Linux code, increasing 6379114237Snjlreadability and maintainability. 6380114237Snjl 6381114237Snjl---------------------------------------- 6382114237Snjl 6383114237Snjl12 December 2002. Summary of changes for version 20021212. 6384114237Snjl 6385114237Snjl 6386114237Snjl1) ACPI CA Core Subsystem: 6387114237Snjl 6388114237SnjlFixed a problem where the creation of a zero-length AML Buffer 6389114237Snjlwould cause a fault. 6390114237Snjl 6391193267SjkimFixed a problem where a Buffer object that pointed to a static AML 6392126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 6393126372Snjlmemory corruption. 6394114237Snjl 6395114237SnjlFixed a problem where a user buffer (passed in to the external 6396114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 6397114237Snjlsmall to complete the operation, causing memory corruption. 6398114237Snjl 6399114237SnjlFixed a problem in the Buffer-to-String conversion code where a 6400114237Snjlstring of length one was always returned, regardless of the size 6401114237Snjlof the input Buffer object. 6402114237Snjl 6403114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 6404114237Snjllack of need and lack of consistent use. 6405114237Snjl 6406193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6407126372Snjlbelow. These are the code and data sizes for the acpica.lib 6408126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6409126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6410126372Snjlversion of the code includes the debug output trace mechanism and 6411193267Sjkimhas a much larger code and data size. Note that these values will 6412126372Snjlvary depending on the efficiency of the compiler and the compiler 6413126372Snjloptions used during generation. 6414114237Snjl 6415114237Snjl Previous Release 6416114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6417114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6418114237Snjl Current Release: 6419114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6420114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6421114237Snjl 6422114237Snjl 6423114237Snjl---------------------------------------- 6424114237Snjl05 December 2002. Summary of changes for version 20021205. 6425114237Snjl 6426114237Snjl1) ACPI CA Core Subsystem: 6427114237Snjl 6428114237SnjlFixed a problem where a store to a String or Buffer object could 6429114237Snjlcause corruption of the DSDT if the object type being stored was 6430114237Snjlthe same as the target object type and the length of the object 6431114237Snjlbeing stored was equal to or smaller than the original (existing) 6432114237Snjltarget object. This was seen to cause corruption of battery _BIF 6433114237Snjlbuffers if the _BIF method modified the buffer on the fly. 6434114237Snjl 6435193267SjkimFixed a problem where an internal error was generated if a control 6436126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 6437126372SnjlPackage declaration. This was caused by the deferred parsing of 6438126372Snjlthe control method and thus the deferred creation of the internal 6439126372Snjlmethod object. The solution to this problem was to create the 6440126372Snjlinternal method object at the moment the method is encountered in 6441126372Snjlthe first pass - so that subsequent references to the method will 6442126372Snjlable to obtain the required parameter count and thus properly 6443126372Snjlparse the method invocation. This problem presented itself as an 6444126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 6445114237Snjl 6446114237SnjlFixed a problem where the internal String object copy routine did 6447193267Sjkimnot always allocate sufficient memory for the target String object 6448126372Snjland caused memory corruption. This problem was seen to cause 6449126372Snjl"Allocation already present in list!" errors as memory allocation 6450126372Snjlbecame corrupted. 6451114237Snjl 6452193267SjkimImplemented a new function for the evaluation of namespace objects 6453126372Snjlthat allows the specification of the allowable return object 6454126372Snjltypes. This simplifies a lot of code that checks for a return 6455126372Snjlobject of one or more specific objects returned from the 6456114237Snjlevaluation (such as _STA, etc.) This may become and external 6457114237Snjlfunction if it would be useful to ACPI-related drivers. 6458114237Snjl 6459114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 6460114237Snjlclarity. 6461114237Snjl 6462114237SnjlCompleted additional code restructuring to allow more modular 6463114237Snjllinking for iASL compiler and AcpiExec. Several files were split 6464114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 6465114237Snjl 6466114237SnjlImplemented an abort mechanism to terminate an executing control 6467193267Sjkimmethod via the AML debugger. This feature is useful for debugging 6468126372Snjlcontrol methods that depend (wait) for specific hardware 6469126372Snjlresponses. 6470114237Snjl 6471193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6472126372Snjlbelow. These are the code and data sizes for the acpica.lib 6473126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6474126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6475126372Snjlversion of the code includes the debug output trace mechanism and 6476193267Sjkimhas a much larger code and data size. Note that these values will 6477126372Snjlvary depending on the efficiency of the compiler and the compiler 6478126372Snjloptions used during generation. 6479114237Snjl 6480114237Snjl Previous Release 6481114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6482114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 6483114237Snjl Current Release: 6484114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6485114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6486114237Snjl 6487114237Snjl 6488114237Snjl2) iASL Compiler/Disassembler 6489114237Snjl 6490114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 6491114237SnjlDescriptors. If specified in the ASL, the optional "Resource 6492114237SnjlSource Index" and "Resource Source" fields were not inserted into 6493114237Snjlthe correct location within the AML resource descriptor, creating 6494114237Snjlan invalid descriptor. 6495114237Snjl 6496193267SjkimFixed a disassembler problem for "Interrupt" resource descriptors. 6497126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 6498126372Snjlwere ignored. 6499114237Snjl 6500114237Snjl 6501114237Snjl---------------------------------------- 6502114237Snjl22 November 2002. Summary of changes for version 20021122. 6503114237Snjl 6504114237Snjl 6505114237Snjl1) ACPI CA Core Subsystem: 6506114237Snjl 6507114237SnjlFixed a reported problem where an object stored to a Method Local 6508114237Snjlor Arg was not copied to a new object during the store - the 6509114237Snjlobject pointer was simply copied to the Local/Arg. This caused 6510114237Snjlall subsequent operations on the Local/Arg to also affect the 6511114237Snjloriginal source of the store operation. 6512114237Snjl 6513114237SnjlFixed a problem where a store operation to a Method Local or Arg 6514114237Snjlwas not completed properly if the Local/Arg contained a reference 6515114237Snjl(from RefOf) to a named field. The general-purpose store-to- 6516114237Snjlnamespace-node code is now used so that this case is handled 6517114237Snjlautomatically. 6518114237Snjl 6519193267SjkimFixed a problem where the internal object copy routine would cause 6520126372Snjla protection fault if the object being copied was a Package and 6521126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 6522114237Snjlpackage. 6523114237Snjl 6524114237SnjlFixed a problem with the GPE initialization that resulted from an 6525114237Snjlambiguity in the ACPI specification. One section of the 6526114237Snjlspecification states that both the address and length of the GPE 6527193267Sjkimblock must be zero if the block is not supported. Another section 6528126372Snjlimplies that only the address need be zero if the block is not 6529193267Sjkimsupported. The code has been changed so that both the address and 6530126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 6531126372Snjlif either the address or the length is zero, the GPE block is 6532126372Snjlinvalid.) 6533114237Snjl 6534193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6535126372Snjlbelow. These are the code and data sizes for the acpica.lib 6536126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6537126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6538126372Snjlversion of the code includes the debug output trace mechanism and 6539193267Sjkimhas a much larger code and data size. Note that these values will 6540126372Snjlvary depending on the efficiency of the compiler and the compiler 6541126372Snjloptions used during generation. 6542114237Snjl 6543114237Snjl Previous Release 6544114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 6545114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 6546114237Snjl Current Release: 6547114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6548114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 6549114237Snjl 6550114237Snjl 6551114237Snjl2) Linux 6552114237Snjl 6553114237SnjlCleaned up EC driver. Exported an external EC read/write 6554114237Snjlinterface. By going through this, other drivers (most notably 6555114237Snjlsonypi) will be able to serialize access to the EC. 6556114237Snjl 6557114237Snjl 6558114237Snjl3) iASL Compiler/Disassembler 6559114237Snjl 6560114237SnjlImplemented support to optionally generate include files for both 6561114237SnjlASM and C (the -i switch). This simplifies BIOS development by 6562114237Snjlautomatically creating include files that contain external 6563114237Snjldeclarations for the symbols that are created within the 6564167802Sjkim 6565114237Snjl(optionally generated) ASM and C AML source files. 6566114237Snjl 6567114237Snjl 6568114237Snjl---------------------------------------- 6569107325Siwasaki15 November 2002. Summary of changes for version 20021115. 6570104470Siwasaki 6571107325Siwasaki1) ACPI CA Core Subsystem: 6572107325Siwasaki 6573114237SnjlFixed a memory leak problem where an error during resolution of 6574167802Sjkim 6575114237Snjlmethod arguments during a method invocation from another method 6576114237Snjlfailed to cleanup properly by deleting all successfully resolved 6577114237Snjlargument objects. 6578107325Siwasaki 6579114237SnjlFixed a problem where the target of the Index() operator was not 6580114237Snjlcorrectly constructed if the source object was a package. This 6581114237Snjlproblem has not been detected because the use of a target operand 6582114237Snjlwith Index() is very rare. 6583107325Siwasaki 6584107325SiwasakiFixed a problem with the Index() operator where an attempt was 6585107325Siwasakimade to delete the operand objects twice. 6586107325Siwasaki 6587107325SiwasakiFixed a problem where an attempt was made to delete an operand 6588114237Snjltwice during execution of the CondRefOf() operator if the target 6589114237Snjldid not exist. 6590107325Siwasaki 6591114237SnjlImplemented the first of perhaps several internal create object 6592193267Sjkimfunctions that create and initialize a specific object type. This 6593126372Snjlconsolidates duplicated code wherever the object is created, thus 6594126372Snjlshrinking the size of the subsystem. 6595107325Siwasaki 6596114237SnjlImplemented improved debug/error messages for errors that occur 6597114237Snjlduring nested method invocations. All executing method pathnames 6598193267Sjkimare displayed (with the error) as the call stack is unwound - thus 6599126372Snjlsimplifying debug. 6600107325Siwasaki 6601107325SiwasakiFixed a problem introduced in the 10/02 release that caused 6602114237Snjlpremature deletion of a buffer object if a buffer was used as an 6603114237SnjlASL operand where an integer operand is required (Thus causing an 6604193267Sjkimimplicit object conversion from Buffer to Integer.) The change in 6605126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 6606114237Snjlincorrectly.) 6607107325Siwasaki 6608193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6609126372Snjlbelow. These are the code and data sizes for the acpica.lib 6610126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6611126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6612126372Snjlversion of the code includes the debug output trace mechanism and 6613193267Sjkimhas a much larger code and data size. Note that these values will 6614126372Snjlvary depending on the efficiency of the compiler and the compiler 6615126372Snjloptions used during generation. 6616107325Siwasaki 6617107325Siwasaki Previous Release 6618107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 6619107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 6620107325Siwasaki Current Release: 6621107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 6622107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 6623107325Siwasaki 6624107325Siwasaki 6625107325Siwasaki2) Linux 6626107325Siwasaki 6627114237SnjlChanged the implementation of the ACPI semaphores to use down() 6628114237Snjlinstead of down_interruptable(). It is important that the 6629114237Snjlexecution of ACPI control methods not be interrupted by signals. 6630114237SnjlMethods must run to completion, or the system may be left in an 6631114237Snjlunknown/unstable state. 6632107325Siwasaki 6633193267SjkimFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set. 6634126372Snjl(Shawn Starr) 6635107325Siwasaki 6636107325Siwasaki 6637107325Siwasaki3) iASL Compiler/Disassembler 6638107325Siwasaki 6639107325Siwasaki 6640114237SnjlChanged the default location of output files. All output files 6641114237Snjlare now placed in the current directory by default instead of in 6642114237Snjlthe directory of the source file. This change may affect some 6643114237Snjlexisting makefiles, but it brings the behavior of the compiler in 6644114237Snjlline with other similar tools. The location of the output files 6645114237Snjlcan be overridden with the -p command line switch. 6646107325Siwasaki 6647114237Snjl 6648107325Siwasaki---------------------------------------- 6649107325Siwasaki11 November 2002. Summary of changes for version 20021111. 6650107325Siwasaki 6651107325Siwasaki 6652114237Snjl0) ACPI Specification 2.0B is released and is now available at: 6653114237Snjlhttp://www.acpi.info/index.html 6654107325Siwasaki 6655107325Siwasaki 6656107325Siwasaki1) ACPI CA Core Subsystem: 6657107325Siwasaki 6658107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 6659114237SnjlThis includes the early detection and handoff of the request to 6660114237Snjlthe SMBus region handler (avoiding all of the complex field 6661107325Siwasakisupport code), and support for the bidirectional return packet 6662107325Siwasakifrom an SMBus write operation. This paves the way for the 6663107325Siwasakidevelopment of SMBus drivers in each host operating system. 6664107325Siwasaki 6665107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 6666107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 6667107325Siwasakispecification. This had the side effect of causing ASL 6668107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 6669107325Siwasakiforever. Changed all internal references to the ACPI timeout 6670193267Sjkimparameter to 16 bits to prevent future problems. Changed the name 6671126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 6672107325Siwasaki 6673193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6674126372Snjlbelow. These are the code and data sizes for the acpica.lib 6675126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6676126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6677126372Snjlversion of the code includes the debug output trace mechanism and 6678193267Sjkimhas a much larger code and data size. Note that these values will 6679126372Snjlvary depending on the efficiency of the compiler and the compiler 6680126372Snjloptions used during generation. 6681107325Siwasaki 6682107325Siwasaki Previous Release 6683107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6684107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 6685107325Siwasaki Current Release: 6686107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 6687107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 6688107325Siwasaki 6689107325Siwasaki 6690107325Siwasaki2) Linux 6691107325Siwasaki 6692107325SiwasakiModule loading/unloading fixes (John Cagle) 6693107325Siwasaki 6694107325Siwasaki 6695107325Siwasaki3) iASL Compiler/Disassembler 6696107325Siwasaki 6697107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 6698107325Siwasaki 6699107325SiwasakiImplemented support for the disassembly of all SMBus protocol 6700107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 6701107325Siwasaki 6702107325Siwasaki---------------------------------------- 6703107325Siwasaki01 November 2002. Summary of changes for version 20021101. 6704107325Siwasaki 6705107325Siwasaki 6706107325Siwasaki1) ACPI CA Core Subsystem: 6707107325Siwasaki 6708193267SjkimFixed a problem where platforms that have a GPE1 block but no GPE0 6709126372Snjlblock were not handled correctly. This resulted in a "GPE 6710114237Snjloverlap" error message. GPE0 is no longer required. 6711107325Siwasaki 6712107325SiwasakiRemoved code added in the previous release that inserted nodes 6713114237Snjlinto the namespace in alphabetical order. This caused some side- 6714114237Snjleffects on various machines. The root cause of the problem is 6715114237Snjlstill under investigation since in theory, the internal ordering 6716114237Snjlof the namespace nodes should not matter. 6717107325Siwasaki 6718107325Siwasaki 6719114237SnjlEnhanced error reporting for the case where a named object is not 6720114237Snjlfound during control method execution. The full ACPI namepath 6721114237Snjl(name reference) of the object that was not found is displayed in 6722114237Snjlthis case. 6723107325Siwasaki 6724193267SjkimNote: as a result of the overhaul of the namespace object types in 6725126372Snjlthe previous release, the namespace nodes for the predefined 6726114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 6727114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 6728114237Snjlmanagement code but may affect code that walks the namespace tree 6729114237Snjllooking for specific object types. 6730114237Snjl 6731193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6732126372Snjlbelow. These are the code and data sizes for the acpica.lib 6733126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6734126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6735126372Snjlversion of the code includes the debug output trace mechanism and 6736193267Sjkimhas a much larger code and data size. Note that these values will 6737126372Snjlvary depending on the efficiency of the compiler and the compiler 6738126372Snjloptions used during generation. 6739107325Siwasaki 6740107325Siwasaki Previous Release 6741107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 6742107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 6743107325Siwasaki Current Release: 6744107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6745107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 6746107325Siwasaki 6747107325Siwasaki 6748107325Siwasaki2) Linux 6749107325Siwasaki 6750107325SiwasakiFixed a problem introduced in the previous release where the 6751193267SjkimProcessor and Thermal objects were not recognized and installed in 6752193267Sjkim/proc. This was related to the scope type change described above. 6753107325Siwasaki 6754107325Siwasaki 6755107325Siwasaki3) iASL Compiler/Disassembler 6756107325Siwasaki 6757114237SnjlImplemented the -g option to get all of the required ACPI tables 6758114237Snjlfrom the registry and save them to files (Windows version of the 6759193267Sjkimcompiler only.) The required tables are the FADT, FACS, and DSDT. 6760107325Siwasaki 6761114237SnjlAdded ACPI table checksum validation during table disassembly in 6762114237Snjlorder to catch corrupted tables. 6763107325Siwasaki 6764107325Siwasaki 6765107325Siwasaki---------------------------------------- 6766107325Siwasaki22 October 2002. Summary of changes for version 20021022. 6767107325Siwasaki 6768107325Siwasaki1) ACPI CA Core Subsystem: 6769107325Siwasaki 6770114237SnjlImplemented a restriction on the Scope operator that the target 6771114237Snjlmust already exist in the namespace at the time the operator is 6772114237Snjlencountered (during table load or method execution). In other 6773114237Snjlwords, forward references are not allowed and Scope() cannot 6774114237Snjlcreate a new object. This changes the previous behavior where the 6775193267Sjkiminterpreter would create the name if not found. This new behavior 6776126372Snjlcorrectly enables the search-to-root algorithm during namespace 6777126372Snjllookup of the target name. Because of this upsearch, this fixes 6778126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 6779126372Snjlinterpreter and iASL compiler compatible with other ACPI 6780114237Snjlimplementations. 6781107325Siwasaki 6782114237SnjlCompleted a major overhaul of the internal ACPI object types for 6783114237Snjlthe ACPI Namespace and the associated operand objects. Many of 6784114237Snjlthese types had become obsolete with the introduction of the two- 6785114237Snjlpass namespace load. This cleanup simplifies the code and makes 6786114237Snjlthe entire namespace load mechanism much clearer and easier to 6787114237Snjlunderstand. 6788107325Siwasaki 6789114237SnjlImproved debug output for tracking scope opening/closing to help 6790114237Snjldiagnose scoping issues. The old scope name as well as the new 6791114237Snjlscope name are displayed. Also improved error messages for 6792114237Snjlproblems with ASL Mutex objects and error messages for GPE 6793114237Snjlproblems. 6794107325Siwasaki 6795107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 6796107325Siwasaki 6797114237SnjlAll string output (for all namespace/object dumps) now uses the 6798193267Sjkimcommon ACPI string output procedure which handles escapes properly 6799126372Snjland does not emit non-printable characters. 6800107325Siwasaki 6801107325SiwasakiFixed some issues with constants in the 64-bit version of the 6802107325Siwasakilocal C library (utclib.c) 6803107325Siwasaki 6804107325Siwasaki 6805107325Siwasaki2) Linux 6806107325Siwasaki 6807107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 6808107325Siwasakiinterrupt level. 6809107325Siwasaki 6810107325Siwasaki 6811107325Siwasaki3) iASL Compiler/Disassembler 6812107325Siwasaki 6813193267SjkimImplemented ACPI 2.0B grammar change that disallows all Type 1 and 6814126372Snjl2 opcodes outside of a control method. This means that the 6815114237Snjl"executable" operators (versus the "namespace" operators) cannot 6816193267Sjkimbe used at the table level; they can only be used within a control 6817126372Snjlmethod. 6818107325Siwasaki 6819107325SiwasakiImplemented the restriction on the Scope() operator where the 6820107325Siwasakitarget must already exist in the namespace at the time the 6821114237Snjloperator is encountered (during ASL compilation). In other words, 6822193267Sjkimforward references are not allowed and Scope() cannot create a new 6823126372Snjlobject. This makes the iASL compiler compatible with other ACPI 6824193267Sjkimimplementations and makes the Scope() implementation adhere to the 6825126372SnjlACPI specification. 6826107325Siwasaki 6827193267SjkimFixed a problem where namepath optimization for the Alias operator 6828193267Sjkimwas optimizing the wrong path (of the two namepaths.) This caused 6829126372Snjla "Missing alias link" error message. 6830107325Siwasaki 6831114237SnjlFixed a problem where an "unknown reserved name" warning could be 6832114237Snjlincorrectly generated for names like "_SB" when the trailing 6833114237Snjlunderscore is not used in the original ASL. 6834107325Siwasaki 6835107325SiwasakiFixed a problem where the reserved name check did not handle 6836114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 6837114237Snjlthe NamePath was examined instead of the last NameSeg. 6838107325Siwasaki 6839107325Siwasaki 6840107325Siwasaki---------------------------------------- 6841107325Siwasaki 6842104470Siwasaki02 October 2002. Summary of changes for this release. 6843104470Siwasaki 6844104470Siwasaki 6845104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 6846104470Siwasaki 6847104470SiwasakiFixed a problem where a store/copy of a string to an existing 6848193267Sjkimstring did not always set the string length properly in the String 6849126372Snjlobject. 6850104470Siwasaki 6851104470SiwasakiFixed a reported problem with the ToString operator where the 6852193267Sjkimbehavior was identical to the ToHexString operator instead of just 6853126372Snjlsimply converting a raw buffer to a string data type. 6854104470Siwasaki 6855104470SiwasakiFixed a problem where CopyObject and the other "explicit" 6856193267Sjkimconversion operators were not updating the internal namespace node 6857126372Snjltype as part of the store operation. 6858104470Siwasaki 6859104470SiwasakiFixed a memory leak during implicit source operand conversion 6860193267Sjkimwhere the original object was not deleted if it was converted to a 6861126372Snjlnew object of a different type. 6862104470Siwasaki 6863193267SjkimEnhanced error messages for all problems associated with namespace 6864193267Sjkimlookups. Common procedure generates and prints the lookup name as 6865126372Snjlwell as the formatted status. 6866104470Siwasaki 6867104470SiwasakiCompleted implementation of a new design for the Alias support 6868193267Sjkimwithin the namespace. The existing design did not handle the case 6869193267Sjkimwhere a new object was assigned to one of the two names due to the 6870193267Sjkimuse of an explicit conversion operator, resulting in the two names 6871126372Snjlpointing to two different objects. The new design simply points 6872126372Snjlthe Alias name to the original name node - not to the object. 6873193267SjkimThis results in a level of indirection that must be handled in the 6874126372Snjlname resolution mechanism. 6875104470Siwasaki 6876193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6877126372Snjlbelow. These are the code and data sizes for the acpica.lib 6878126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6879126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6880126372Snjlversion of the code includes the debug output trace mechanism and 6881193267Sjkimhas a larger code and data size. Note that these values will vary 6882126372Snjldepending on the efficiency of the compiler and the compiler 6883126372Snjloptions used during generation. 6884104470Siwasaki 6885104470Siwasaki Previous Release 6886104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 6887104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 6888104470Siwasaki Current Release: 6889104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 6890104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 6891104470Siwasaki 6892104470Siwasaki 6893104470Siwasaki2) Linux 6894104470Siwasaki 6895104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 6896104470SiwasakiNeumann) 6897104470Siwasaki 6898104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 6899104470Siwasaki 6900114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 6901104470Siwasaki 6902104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 6903104470Siwasaki 6904104470SiwasakiIA64 fixes. (David Mosberger) 6905104470Siwasaki 6906104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 6907104470Siwasaki 6908104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 6909104470SiwasakiBrodowski) 6910104470Siwasaki 6911104470Siwasaki 6912104470Siwasaki3) iASL Compiler/Disassembler 6913104470Siwasaki 6914104470SiwasakiClarified some warning/error messages. 6915104470Siwasaki 6916104470Siwasaki 6917104470Siwasaki---------------------------------------- 6918104470Siwasaki18 September 2002. Summary of changes for this release. 6919104470Siwasaki 6920104470Siwasaki 6921104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 6922104470Siwasaki 6923114237SnjlFixed a reported problem with reference chaining (via the Index() 6924193267Sjkimand RefOf() operators) in the ObjectType() and SizeOf() operators. 6925126372SnjlThe definition of these operators includes the dereferencing of 6926126372Snjlall chained references to return information on the base object. 6927104470Siwasaki 6928104470SiwasakiFixed a problem with stores to indexed package elements - the 6929104470Siwasakiexisting code would not complete the store if an "implicit 6930114237Snjlconversion" was not performed. In other words, if the existing 6931114237Snjlobject (package element) was to be replaced completely, the code 6932114237Snjldidn't handle this case. 6933104470Siwasaki 6934104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 6935104470Siwasakitarget name to refer to an object of type Integer, String, or 6936104470SiwasakiBuffer, in addition to the scoping object types (Device, 6937104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 6938114237SnjlThis allows existing AML code that has workarounds for a bug in 6939193267SjkimWindows to function properly. A warning is issued, however. This 6940126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 6941126372Snjlan example of this type of ASL code: 6942104470Siwasaki 6943104470Siwasaki Name(DEB,0x00) 6944104470Siwasaki Scope(DEB) 6945104470Siwasaki { 6946104470Siwasaki 6947114237SnjlFixed some reported problems with 64-bit integer support in the 6948114237Snjllocal implementation of C library functions (clib.c) 6949104470Siwasaki 6950104470Siwasaki 6951104470Siwasaki2) Linux 6952104470Siwasaki 6953104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 6954104470Siwasakiundefined in non-SMP. 6955104470Siwasaki 6956114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 6957114237Snjlsystems that do not have an interrupt override entry in the MADT. 6958104470Siwasaki 6959104470Siwasaki2.5 big driver reorganization (Pat Mochel) 6960104470Siwasaki 6961104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 6962104470Siwasaki 6963104470SiwasakiNew blacklist entries (Andi Kleen) 6964104470Siwasaki 6965114237SnjlBlacklist improvements. Split blacklist code out into a separate 6966114237Snjlfile. Move checking the blacklist to very early. Previously, we 6967114237Snjlwould use ACPI tables, and then halfway through init, check the 6968114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 6969114237Snjlback to non-ACPI. 6970104470Siwasaki 6971104470Siwasaki 6972104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 6973104470Siwasaki 6974114237SnjlFixed a problem where the typechecking code didn't know that an 6975114237Snjlalias could point to a method. In other words, aliases were not 6976114237Snjlbeing dereferenced during typechecking. 6977104470Siwasaki 6978104470Siwasaki 6979104470Siwasaki---------------------------------------- 6980104470Siwasaki29 August 2002. Summary of changes for this release. 6981104470Siwasaki 6982104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 6983104470Siwasaki 6984114237SnjlIf the target of a Scope() operator already exists, it must be an 6985114237Snjlobject type that actually opens a scope -- such as a Device, 6986193267SjkimMethod, Scope, etc. This is a fatal runtime error. Similar error 6987126372Snjlcheck has been added to the iASL compiler also. 6988104470Siwasaki 6989114237SnjlTightened up the namespace load to disallow multiple names in the 6990114237Snjlsame scope. This previously was allowed if both objects were of 6991114237Snjlthe same type. (i.e., a lookup was the same as entering a new 6992114237Snjlname). 6993104470Siwasaki 6994104470Siwasaki 6995104470Siwasaki2) Linux 6996104470Siwasaki 6997104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 6998104470Siwasakipolarity. 6999104470Siwasaki 7000104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 7001104470Siwasaki 7002104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 7003104470Siwasakiinterpreter *or* the tables. 7004104470Siwasaki 7005193267SjkimAdded arch-neutral support for parsing SLIT and SRAT tables (Kochi 7006126372SnjlTakayoshi) 7007104470Siwasaki 7008104470Siwasaki 7009104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 7010104470Siwasaki 7011104470SiwasakiImplemented namepath optimization for name declarations. For 7012104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 7013104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 7014104470Siwasaki\_SB_ scope. This optimization is in addition to the named 7015104470Siwasakireference path optimization first released in the previous 7016114237Snjlversion. This would seem to complete all possible optimizations 7017114237Snjlfor namepaths within the ASL/AML. 7018104470Siwasaki 7019114237SnjlIf the target of a Scope() operator already exists, it must be an 7020114237Snjlobject type that actually opens a scope -- such as a Device, 7021114237SnjlMethod, Scope, etc. 7022104470Siwasaki 7023114237SnjlImplemented a check and warning for unreachable code in the same 7024114237Snjlblock below a Return() statement. 7025104470Siwasaki 7026114237SnjlFixed a problem where the listing file was not generated if the 7027114237Snjlcompiler aborted if the maximum error count was exceeded (200). 7028104470Siwasaki 7029193267SjkimFixed a problem where the typechecking of method return values was 7030126372Snjlbroken. This includes the check for a return value when the 7031114237Snjlmethod is invoked as a TermArg (a return value is expected.) 7032104470Siwasaki 7033104470SiwasakiFixed a reported problem where EOF conditions during a quoted 7034104470Siwasakistring or comment caused a fault. 7035104470Siwasaki 7036104470Siwasaki 7037104470Siwasaki---------------------------------------- 7038102550Siwasaki15 August 2002. Summary of changes for this release. 7039102550Siwasaki 7040102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 7041102550Siwasaki 7042114237SnjlFixed a reported problem where a Store to a method argument that 7043193267Sjkimcontains a reference did not perform the indirect store correctly. 7044126372SnjlThis problem was created during the conversion to the new 7045126372Snjlreference object model - the indirect store to a method argument 7046126372Snjlcode was not updated to reflect the new model. 7047102550Siwasaki 7048114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 7049193267Sjkimhandle corner cases, and improve code legibility (Kochi Takayoshi) 7050102550Siwasaki 7051102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 7052114237Snjlprefix. The heavy use of the carat operator by the new namepath 7053193267Sjkimoptimization in the iASL compiler uncovered a problem with the AML 7054126372Snjlinterpreter handling of this prefix. In the case where one or 7055126372Snjlmore carats precede a single nameseg, the nameseg was treated as 7056126372Snjlstandalone and the search rule (to root) was inadvertently 7057114237Snjlapplied. This could cause both the iASL compiler and the 7058114237Snjlinterpreter to find the wrong object or to miss the error that 7059114237Snjlshould occur if the object does not exist at that exact pathname. 7060102550Siwasaki 7061114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 7062193267Sjkimload. This was a relatively minor tweak to the table loading code 7063126372Snjl(a problem caused by the unexpected encounter with a method 7064193267Sjkiminvocation not within a control method), but it does not solve the 7065126372Snjloverall issue of the execution of AML code at the table level. 7066126372SnjlThis investigation is still ongoing. 7067102550Siwasaki 7068193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7069126372Snjlbelow. These are the code and data sizes for the acpica.lib 7070126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7071126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7072126372Snjlversion of the code includes the debug output trace mechanism and 7073193267Sjkimhas a larger code and data size. Note that these values will vary 7074126372Snjldepending on the efficiency of the compiler and the compiler 7075126372Snjloptions used during generation. 7076102550Siwasaki 7077102550Siwasaki Previous Release 7078104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7079104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7080102550Siwasaki Current Release: 7081104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7082104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7083102550Siwasaki 7084102550Siwasaki 7085102550Siwasaki2) Linux 7086102550Siwasaki 7087102550SiwasakiRemove redundant slab.h include (Brad Hards) 7088102550Siwasaki 7089102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 7090102550Siwasaki 7091102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 7092102550Siwasaki 7093104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 7094104470SiwasakiMachek) 7095102550Siwasaki 7096102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 7097102550Siwasaki 7098102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 7099102550Siwasaki 7100102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 7101102550Siwasaki 7102102550Siwasaki 7103102550Siwasaki3) iASL Compiler/Disassembler 7104102550Siwasaki 7105114237SnjlReworked the compiler options to make them more consistent and to 7106114237Snjluse two-letter options where appropriate. We were running out of 7107114237Snjlsensible letters. This may break some makefiles, so check the 7108114237Snjlcurrent options list by invoking the compiler with no parameters. 7109102550Siwasaki 7110102550SiwasakiCompleted the design and implementation of the ASL namepath 7111114237Snjloptimization option for the compiler. This option optimizes all 7112114237Snjlreferences to named objects to the shortest possible path. The 7113193267Sjkimfirst attempt tries to utilize a single nameseg (4 characters) and 7114126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 7115126372Snjlcannot be used (because either the name is not in the search path 7116126372Snjlor there is a conflict with another object with the same name), 7117126372Snjlthe pathname is optimized using the carat prefix (usually a 7118126372Snjlshorter string than specifying the entire path from the root.) 7119102550Siwasaki 7120114237SnjlImplemented support to obtain the DSDT from the Windows registry 7121114237Snjl(when the disassembly option is specified with no input file). 7122114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 7123114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 7124114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 7125114237Snjlfunction in the DOS OSL to make the disassembler truly OS 7126114237Snjlindependent. 7127102550Siwasaki 7128114237SnjlImplemented a new option to disassemble and compile in one step. 7129114237SnjlWhen used without an input filename, this option will grab the 7130193267SjkimDSDT from the local machine, disassemble it, and compile it in one 7131126372Snjlstep. 7132102550Siwasaki 7133114237SnjlAdded a warning message for invalid escapes (a backslash followed 7134114237Snjlby any character other than the allowable escapes). This catches 7135114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 7136167802Sjkim 7137193267SjkimAlso, there are numerous instances in the ACPI specification where 7138126372Snjlthis error occurs. 7139102550Siwasaki 7140104470SiwasakiAdded a compiler option to disable all optimizations. This is 7141114237Snjlbasically the "compatibility mode" because by using this option, 7142114237Snjlthe AML code will come out exactly the same as other ASL 7143114237Snjlcompilers. 7144102550Siwasaki 7145114237SnjlAdded error messages for incorrectly ordered dependent resource 7146114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 7147114237Snjldependent resource list, nested dependent function macros (both 7148114237Snjlstart and end), and missing StartDependentFn macro. These are 7149114237Snjlcommon errors that should be caught at compile time. 7150102550Siwasaki 7151114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 7152114237Snjlmust be included in the namespace for proper disassembly (because 7153114237Snjlthe disassembler must know the number of arguments.) 7154102550Siwasaki 7155104470SiwasakiAdded an "optimization" message type that is optional (off by 7156114237Snjldefault). This message is used for all optimizations - including 7157193267Sjkimconstant folding, integer optimization, and namepath optimization. 7158102550Siwasaki 7159102550Siwasaki---------------------------------------- 7160102550Siwasaki25 July 2002. Summary of changes for this release. 7161102550Siwasaki 7162102550Siwasaki 7163102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 7164102550Siwasaki 7165114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 7166193267Sjkimcode and has been integrated into the iASL compiler (see below) as 7167126372Snjlwell as the single-step disassembly for the AML debugger and the 7168126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 7169126372Snjlresource templates and macros are fully supported. The 7170114237Snjldisassembler has been tested on over 30 different AML files, 7171114237Snjlproducing identical AML when the resulting disassembled ASL file 7172114237Snjlis recompiled with the same ASL compiler. 7173102550Siwasaki 7174114237SnjlModified the Resource Manager to allow zero interrupts and zero 7175114237Snjldma channels during the GetCurrentResources call. This was 7176114237Snjlcausing problems on some platforms. 7177102550Siwasaki 7178114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 7179114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 7180114237Snjlinterfaces. 7181102550Siwasaki 7182193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7183126372Snjlbelow. These are the code and data sizes for the acpica.lib 7184126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7185126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7186126372Snjlversion of the code includes the debug output trace mechanism and 7187193267Sjkimhas a larger code and data size. Note that these values will vary 7188126372Snjldepending on the efficiency of the compiler and the compiler 7189126372Snjloptions used during generation. 7190102550Siwasaki 7191102550Siwasaki Previous Release 7192104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7193104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7194102550Siwasaki Current Release: 7195104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7196104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7197102550Siwasaki 7198102550Siwasaki 7199102550Siwasaki2) Linux 7200102550Siwasaki 7201102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 7202102550Siwasaki 7203114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 7204114237Snjl(Richard Schaal) 7205102550Siwasaki 7206102550Siwasaki 7207102550Siwasaki3) iASL compiler 7208102550Siwasaki 7209114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 7210114237Snjloption invokes the disassembler to completely disassemble an 7211114237Snjlinput AML file, producing as output a text ASL file with the 7212114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 7213114237Snjlsource files.) A future enhancement will allow the disassembler 7214114237Snjlto obtain the BIOS DSDT from the registry under Windows. 7215102550Siwasaki 7216102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 7217102550Siwasakidescriptors where an invalid AML sequence was created. 7218102550Siwasaki 7219114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 7220114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 7221114237Snjlcausing reduction conflicts. 7222102550Siwasaki 7223104470SiwasakiFixed a problem where the Ones opcode could get converted to a 7224193267Sjkimvalue of zero if "Ones" was used where a byte, word or dword value 7225126372Snjlwas expected. The 64-bit value is now truncated to the correct 7226126372Snjlsize with the correct value. 7227102550Siwasaki 7228102550Siwasaki 7229167802Sjkim 7230102550Siwasaki---------------------------------------- 7231102550Siwasaki02 July 2002. Summary of changes for this release. 7232102550Siwasaki 7233102550Siwasaki 7234102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 7235102550Siwasaki 7236114237SnjlThe Table Manager code has been restructured to add several new 7237114237Snjlfeatures. Tables that are not required by the core subsystem 7238114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 7239193267Sjkimvalidated in any way and are returned from AcpiGetFirmwareTable if 7240126372Snjlrequested. The AcpiOsTableOverride interface is now called for 7241126372Snjleach table that is loaded by the subsystem in order to allow the 7242126372Snjlhost to override any table it chooses. Previously, only the DSDT 7243126372Snjlcould be overridden. Added one new files, tbrsdt.c and 7244114237Snjltbgetall.c. 7245102550Siwasaki 7246193267SjkimFixed a problem with the conversion of internal package objects to 7247126372Snjlexternal objects (when a package is returned from a control 7248114237Snjlmethod.) The return buffer length was set to zero instead of the 7249114237Snjlproper length of the package object. 7250102550Siwasaki 7251104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 7252114237Snjloperators when passing reference arguments to control methods. A 7253114237Snjlnew type of Reference object is used internally for references 7254114237Snjlproduced by the RefOf operator. 7255102550Siwasaki 7256193267SjkimAdded additional error messages in the Resource Manager to explain 7257126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 7258102550Siwasaki 7259104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 7260193267Sjkimfiner granularity initialization sequence. These two calls should 7261126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 7262114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 7263114237Snjlsame. 7264102550Siwasaki 7265102550Siwasaki 7266102550Siwasaki2) Linux 7267102550Siwasaki 7268114237SnjlUpdated the ACPI utilities module to understand the new style of 7269193267Sjkimfully resolved package objects that are now returned from the core 7270126372Snjlsubsystem. This eliminates errors of the form: 7271102550Siwasaki 7272102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 7273102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 7274102550Siwasaki Invalid element in package (not a device reference) 7275102550Siwasaki 7276102550SiwasakiThe method evaluation utility uses the new buffer allocation 7277102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 7278102550Siwasaki 7279102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 7280167802Sjkim 7281114237SnjlController before the namespace has been fully initialized, which 7282114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 7283114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 7284114237Snjllimited testing was performed of the added functionality.) 7285102550Siwasaki 7286102550SiwasakiFixed memory leaks in the EC driver. 7287102550Siwasaki 7288102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 7289102550Siwasaki 7290114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 7291114237Snjlno longer needed since acpi_evaluate_object can optionally 7292104470Siwasakiallocate memory for the return object. 7293102550Siwasaki 7294193267SjkimImplemented fix for keyboard hang when getting battery readings on 7295126372Snjlsome systems (Stephen White) 7296102550Siwasaki 7297102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 7298102550Siwasaki 7299114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 7300114237Snjlsupport 7301102550Siwasaki 7302102550Siwasaki---------------------------------------- 7303102550Siwasaki11 June 2002. Summary of changes for this release. 7304102550Siwasaki 7305102550Siwasaki 7306102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 7307102550Siwasaki 7308104470SiwasakiFixed a reported problem where constants such as Zero and One 7309114237Snjlappearing within _PRT packages were not handled correctly within 7310114237Snjlthe resource manager code. Originally reported against the ASL 7311114237Snjlcompiler because the code generator now optimizes integers to 7312193267Sjkimtheir minimal AML representation (i.e. AML constants if possible.) 7313126372SnjlThe _PRT code now handles all AML constant opcodes correctly 7314126372Snjl(Zero, One, Ones, Revision). 7315102550Siwasaki 7316102550SiwasakiFixed a problem with the Concatenate operator in the AML 7317193267Sjkiminterpreter where a buffer result object was incorrectly marked as 7318126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 7319102550Siwasaki 7320104470SiwasakiAll package sub-objects are now fully resolved before they are 7321114237Snjlreturned from the external ACPI interfaces. This means that name 7322114237Snjlstrings are resolved to object handles, and constant operators 7323114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 7324102550Siwasaki 7325102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 7326104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 7327104470Siwasakiwithin the AML stream. This has simplified and reduced the 7328104470Siwasakigenerated code size of the subsystem by eliminating about 10 7329104470Siwasakiswitch statements for these constants (which previously were 7330193267Sjkimcontained in Reference objects.) The complicating issues are that 7331126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 7332193267Sjkimoptional target operands and stores to constants are defined to be 7333126372Snjlno-ops. 7334102550Siwasaki 7335193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7336126372Snjlbelow. These are the code and data sizes for the acpica.lib 7337114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7338114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 7339114237Snjlversion of the code includes the debug output trace mechanism and 7340193267Sjkimhas a larger code and data size. Note that these values will vary 7341126372Snjldepending on the efficiency of the compiler and the compiler 7342114237Snjloptions used during generation. 7343102550Siwasaki 7344102550Siwasaki Previous Release 7345104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7346104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7347102550Siwasaki Current Release: 7348104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7349104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7350102550Siwasaki 7351102550Siwasaki 7352102550Siwasaki2) Linux 7353102550Siwasaki 7354167802Sjkim 7355104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 7356104470Siwasakibridges (Bjorn Helgaas). 7357102550Siwasaki 7358102550Siwasaki 7359102550Siwasaki3) iASL Compiler Version X2046: 7360102550Siwasaki 7361193267SjkimFixed a problem where the "_DDN" reserved name was defined to be a 7362126372Snjlcontrol method with one argument. There are no arguments, and 7363114237Snjl_DDN does not have to be a control method. 7364102550Siwasaki 7365114237SnjlFixed a problem with the Linux version of the compiler where the 7366114237Snjlsource lines printed with error messages were the wrong lines. 7367114237SnjlThis turned out to be the "LF versus CR/LF" difference between 7368114237SnjlWindows and Unix. This appears to be the longstanding issue 7369114237Snjlconcerning listing output and error messages. 7370102550Siwasaki 7371114237SnjlFixed a problem with the Linux version of compiler where opcode 7372114237Snjlnames within error messages were wrong. This was caused by a 7373114237Snjlslight difference in the output of the Flex tool on Linux versus 7374114237SnjlWindows. 7375102550Siwasaki 7376193267SjkimFixed a problem with the Linux compiler where the hex output files 7377126372Snjlcontained some garbage data caused by an internal buffer overrun. 7378102550Siwasaki 7379102550Siwasaki 7380102550Siwasaki---------------------------------------- 7381102550Siwasaki17 May 2002. Summary of changes for this release. 7382102550Siwasaki 7383102550Siwasaki 7384102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 7385102550Siwasaki 7386102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 7387104470SiwasakiOmniBook where the FADT revision number and the table size are 7388193267Sjkiminconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new 7389126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 7390126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 7391126372Snjlby the revision number. Although this is a BIOS bug, this is a 7392126372Snjlcase where the workaround is simple enough and with no side 7393126372Snjleffects, so it seemed prudent to add it. A warning message is 7394126372Snjlissued, however. 7395102550Siwasaki 7396193267SjkimImplemented minimum size checks for the fixed-length ACPI tables - 7397126372Snjl- the FADT and FACS, as well as consistency checks between the 7398114237Snjlrevision number and the table size. 7399102550Siwasaki 7400114237SnjlFixed a reported problem in the table override support where the 7401114237Snjlnew table pointer was incorrectly treated as a physical address 7402114237Snjlinstead of a logical address. 7403102550Siwasaki 7404114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 7405114237Snjlwith more descriptive codes. 7406102550Siwasaki 7407193267SjkimFixed a problem where an exception would occur if an ASL Field was 7408126372Snjldefined with no named Field Units underneath it (used by some 7409114237Snjlindex fields). 7410102550Siwasaki 7411193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7412126372Snjlbelow. These are the code and data sizes for the acpica.lib 7413126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7414126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7415126372Snjlversion of the code includes the debug output trace mechanism and 7416193267Sjkimhas a larger code and data size. Note that these values will vary 7417126372Snjldepending on the efficiency of the compiler and the compiler 7418126372Snjloptions used during generation. 7419102550Siwasaki 7420102550Siwasaki Previous Release 7421104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7422104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7423102550Siwasaki Current Release: 7424104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7425104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7426102550Siwasaki 7427102550Siwasaki 7428102550Siwasaki 7429102550Siwasaki2) Linux 7430102550Siwasaki 7431114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 7432114237Snjl(Paul D. and Dominik Brodowski) 7433102550Siwasaki 7434102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 7435102550Siwasaki 7436102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 7437102550Siwasaki 7438102550SiwasakiFix "MHz" typo (Dominik Brodowski) 7439102550Siwasaki 7440102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 7441102550Siwasaki 7442102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 7443102550Siwasaki 7444102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 7445102550Siwasaki 7446102550Siwasaki3) iASL Compiler Version X2044: 7447102550Siwasaki 7448193267SjkimImplemented error checking for the string used in the EISAID macro 7449193267Sjkim(Usually used in the definition of the _HID object.) The code now 7450126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 7451126372Snjluppercase letters and 4 hex digits. 7452102550Siwasaki 7453102550SiwasakiIf a raw string is used in the definition of the _HID object 7454102550Siwasaki(instead of the EISAID macro), the string must contain all 7455114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 7456114237Snjlof the asterisk.) 7457102550Siwasaki 7458114237SnjlImplemented checking for invalid use of ACPI reserved names for 7459114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 7460114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 7461114237SnjlPreviously, this check was only performed for control methods. 7462102550Siwasaki 7463114237SnjlImplemented an additional check on the Name operator to emit an 7464114237Snjlerror if a reserved name that must be implemented in ASL as a 7465114237Snjlcontrol method is used. We know that a reserved name must be a 7466114237Snjlmethod if it is defined with input arguments. 7467102550Siwasaki 7468193267SjkimThe warning emitted when a namespace object reference is not found 7469126372Snjlduring the cross reference phase has been changed into an error. 7470193267SjkimThe "External" directive should be used for names defined in other 7471126372Snjlmodules. 7472102550Siwasaki 7473102550Siwasaki 7474102550Siwasaki4) Tools and Utilities 7475102550Siwasaki 7476114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 7477114237Snjltested. 7478102550Siwasaki 7479193267SjkimFixed a problem with the output of both acpidump and adump16 where 7480126372Snjlthe indentation of closing parentheses and brackets was not 7481167802Sjkim 7482114237Snjlaligned properly with the parent block. 7483102550Siwasaki 7484102550Siwasaki 7485102550Siwasaki---------------------------------------- 7486102550Siwasaki03 May 2002. Summary of changes for this release. 7487102550Siwasaki 7488102550Siwasaki 7489102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 7490102550Siwasaki 7491114237SnjlAdded support a new OSL interface that allows the host operating 7492167802Sjkim 7493114237Snjlsystem software to override the DSDT found in the firmware - 7494193267SjkimAcpiOsTableOverride. With this interface, the OSL can examine the 7495126372Snjlversion of the firmware DSDT and replace it with a different one 7496126372Snjlif desired. 7497102550Siwasaki 7498114237SnjlAdded new external interfaces for accessing ACPI registers from 7499114237Snjldevice drivers and other system software - AcpiGetRegister and 7500114237SnjlAcpiSetRegister. This was simply an externalization of the 7501114237Snjlexisting AcpiHwBitRegister interfaces. 7502102550Siwasaki 7503104470SiwasakiFixed a regression introduced in the previous build where the 7504104470SiwasakiASL/AML CreateField operator always returned an error, 7505102550Siwasaki"destination must be a NS Node". 7506102550Siwasaki 7507114237SnjlExtended the maximum time (before failure) to successfully enable 7508114237SnjlACPI mode to 3 seconds. 7509102550Siwasaki 7510193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7511126372Snjlbelow. These are the code and data sizes for the acpica.lib 7512126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7513126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7514126372Snjlversion of the code includes the debug output trace mechanism and 7515193267Sjkimhas a larger code and data size. Note that these values will vary 7516126372Snjldepending on the efficiency of the compiler and the compiler 7517126372Snjloptions used during generation. 7518102550Siwasaki 7519102550Siwasaki Previous Release 7520104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 7521104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 7522102550Siwasaki Current Release: 7523104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7524104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7525102550Siwasaki 7526102550Siwasaki 7527102550Siwasaki2) Linux 7528102550Siwasaki 7529104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 7530193267Sjkimfree. While 3 out of 4 of our in-house systems work fine, the last 7531126372Snjlone still hangs when testing the LAPIC timer. 7532102550Siwasaki 7533114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 7534114237Snjlname. 7535102550Siwasaki 7536102550SiwasakiAdded warning on boot for Presario 711FR. 7537102550Siwasaki 7538102550SiwasakiSleep improvements (Pavel Machek) 7539102550Siwasaki 7540102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 7541102550Siwasaki 7542102550SiwasakiIA64: Fixed memory map functions (JI Lee) 7543102550Siwasaki 7544102550Siwasaki 7545102550Siwasaki3) iASL Compiler Version X2043: 7546102550Siwasaki 7547114237SnjlAdded support to allow the compiler to be integrated into the MS 7548114237SnjlVC++ development environment for one-button compilation of single 7549114237Snjlfiles or entire projects -- with error-to-source-line mapping. 7550102550Siwasaki 7551104470SiwasakiImplemented support for compile-time constant folding for the 7552104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 7553104470Siwasakispecification. This allows the ASL writer to use expressions 7554104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 7555114237Snjlevaluate to constants at compile time and will also simplify the 7556114237Snjlemitted AML in any such sub-expressions that can be folded 7557104470Siwasaki(evaluated at compile-time.) This increases the size of the 7558104470Siwasakicompiler significantly because a portion of the ACPI CA AML 7559104470Siwasakiinterpreter is included within the compiler in order to pre- 7560104470Siwasakievaluate constant expressions. 7561102550Siwasaki 7562114237Snjl 7563102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 7564114237Snjlcompiler to fault. (This macro is used in conjunction with the 7565114237Snjl_STR reserved name.) 7566102550Siwasaki 7567114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 7568114237SnjlOnes opcodes where possible to further reduce the size of integer 7569114237Snjlconstants and thus reduce the overall size of the generated AML 7570114237Snjlcode. 7571102550Siwasaki 7572193267SjkimImplemented error checking for new reserved terms for ACPI version 7573126372Snjl2.0A. 7574102550Siwasaki 7575104470SiwasakiImplemented the -qr option to display the current list of ACPI 7576104470Siwasakireserved names known to the compiler. 7577102550Siwasaki 7578104470SiwasakiImplemented the -qc option to display the current list of ASL 7579104470Siwasakioperators that are allowed within constant expressions and can 7580193267Sjkimtherefore be folded at compile time if the operands are constants. 7581102550Siwasaki 7582102550Siwasaki 7583102550Siwasaki4) Documentation 7584102550Siwasaki 7585193267SjkimUpdated the Programmer's Reference for new interfaces, data types, 7586126372Snjland memory allocation model options. 7587102550Siwasaki 7588114237SnjlUpdated the iASL Compiler User Reference to apply new format and 7589114237Snjladd information about new features and options. 7590102550Siwasaki 7591102550Siwasaki---------------------------------------- 7592102550Siwasaki19 April 2002. Summary of changes for this release. 7593102550Siwasaki 7594102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 7595102550Siwasaki 7596114237SnjlThe source code base for the Core Subsystem has been completely 7597114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 7598114237Snjlversions. The Lint option files used are included in the 7599114237Snjl/acpi/generate/lint directory. 7600102550Siwasaki 7601102550SiwasakiImplemented enhanced status/error checking across the entire 7602114237SnjlHardware manager subsystem. Any hardware errors (reported from 7603114237Snjlthe OSL) are now bubbled up and will abort a running control 7604114237Snjlmethod. 7605102550Siwasaki 7606167802Sjkim 7607114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 7608114237Snjlwas stored only with control method nodes, causing a fault when 7609114237Snjlnon-control method code was executed during table loading. The 7610114237Snjlsolution implemented uses a global variable to indicate table 7611114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 7612114237Snjlnot support mixed integer widths across different ACPI tables 7613114237Snjl(DSDT, SSDT). 7614102550Siwasaki 7615114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 7616114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 7617114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 7618114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 7619193267SjkimACPI 2.0 X field is zero (even though the table revision indicates 7620193267Sjkima full ACPI 2.0 table.) The ACPI specification will be updated to 7621126372Snjlclarify this issue. 7622102550Siwasaki 7623104470SiwasakiFixed a problem with the SystemMemory operation region handler 7624104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 7625104470Siwasakispecified access width was larger than a byte. This caused 7626104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 7627193267Sjkimaccessed with the width specified. On systems that do not support 7628193267Sjkimnon-aligned transfers, a check is made to guarantee proper address 7629126372Snjlalignment before proceeding in order to avoid an AML-caused 7630126372Snjlalignment fault within the kernel. 7631102550Siwasaki 7632102550Siwasaki 7633114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 7634114237Snjlof the 4-byte Irq field was extracted. 7635102550Siwasaki 7636114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 7637114237Snjlfunction was out of date and required a rewrite. 7638114237Snjl 7639193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7640126372Snjlbelow. These are the code and data sizes for the acpica.lib 7641126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7642126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7643126372Snjlversion of the code includes the debug output trace mechanism and 7644193267Sjkimhas a larger code and data size. Note that these values will vary 7645126372Snjldepending on the efficiency of the compiler and the compiler 7646126372Snjloptions used during generation. 7647102550Siwasaki 7648102550Siwasaki Previous Release 7649104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 7650104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 7651102550Siwasaki Current Release: 7652104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 7653104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 7654102550Siwasaki 7655102550Siwasaki 7656102550Siwasaki2) Linux 7657102550Siwasaki 7658102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 7659102550Siwasaki 7660102550Siwasaki 7661102550Siwasaki3) iASL Compiler Version X2042: 7662102550Siwasaki 7663104470SiwasakiImplemented an additional compile-time error check for a field 7664104470Siwasakiunit whose size + minimum access width would cause a run-time 7665114237Snjlaccess beyond the end-of-region. Previously, only the field size 7666114237Snjlitself was checked. 7667102550Siwasaki 7668104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 7669104470Siwasakiobject in preparation for compile-time evaluation of the type 7670104470Siwasaki3/4/5 ASL operators. 7671102550Siwasaki 7672102550Siwasaki 7673102550Siwasaki---------------------------------------- 7674102550SiwasakiSummary of changes for this release: 03_29_02 7675102550Siwasaki 7676102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 7677102550Siwasaki 7678104470SiwasakiImplemented support for late evaluation of TermArg operands to 7679193267SjkimBuffer and Package objects. This allows complex expressions to be 7680126372Snjlused in the declarations of these object types. 7681102550Siwasaki 7682193267SjkimFixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI 7683126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 7684126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 7685193267Sjkimthe field is returned as a buffer only if the field is larger than 7686126372Snjl64 bits. The TableRevision is now considered when making this 7687126372Snjlconversion to avoid incompatibility with existing ASL code. 7688102550Siwasaki 7689104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 7690114237Snjlallows an RSDP with either a logical or physical address. With 7691114237Snjlthis support, the host OS can now override all ACPI tables with 7692114237Snjlone logical RSDP. Includes implementation of "typed" pointer 7693114237Snjlsupport to allow a common data type for both physical and logical 7694114237Snjlpointers internally. This required a change to the 7695114237SnjlAcpiOsGetRootPointer interface. 7696102550Siwasaki 7697193267SjkimImplemented the use of ACPI 2.0 Generic Address Structures for all 7698193267SjkimGPE, Fixed Event, and PM Timer I/O. This allows the use of memory 7699126372Snjlmapped I/O for these ACPI features. 7700102550Siwasaki 7701102550SiwasakiInitialization now ignores not only non-required tables (All 7702114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 7703114237Snjlnot validate the table headers of unrecognized tables. 7704102550Siwasaki 7705102550SiwasakiFixed a problem where a notify handler could only be 7706102550Siwasakiinstalled/removed on an object of type Device. All "notify" 7707167802Sjkim 7708102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 7709102550SiwasakiThermal. 7710102550Siwasaki 7711114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 7712193267Sjkimcritical information is returned when this debug level is enabled. 7713102550Siwasaki 7714193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7715126372Snjlbelow. These are the code and data sizes for the acpica.lib 7716126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7717126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7718126372Snjlversion of the code includes the debug output trace mechanism and 7719193267Sjkimhas a larger code and data size. Note that these values will vary 7720126372Snjldepending on the efficiency of the compiler and the compiler 7721126372Snjloptions used during generation. 7722102550Siwasaki 7723102550Siwasaki Previous Release 7724104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 7725104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 7726102550Siwasaki Current Release: 7727104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 7728104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 7729102550Siwasaki 7730102550Siwasaki 7731102550Siwasaki2) Linux: 7732102550Siwasaki 7733114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 7734114237Snjl2.0-based processor performance control (e.g. Intel(R) 7735114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 7736114237Snjlthe Intel "applet" interface are not supported through this. The 7737114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 7738114237Snjl[Note that basic policy for controlling performance state 7739114237Snjltransitions will be included in the next version of ospmd.] The 7740114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 7741114237Snjlerrata handling underwent a complete overhaul (big thanks to 7742114237SnjlDominik Brodowski). 7743102550Siwasaki 7744114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 7745114237Snjlbased devices in the ACPI namespace are now dynamically bound 7746114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 7747114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 7748114237Snjlsubordinate PCI bridges. 7749102550Siwasaki 7750104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 7751104470Siwasakientries defined underneath PCI bridges. 7752102550Siwasaki 7753104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 7754104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 7755102550Siwasaki 7756114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 7757114237Snjl(acpi.c, mpparse.c) -- stay tuned. 7758102550Siwasaki 7759102550SiwasakiAdded back visual differentiation between fixed-feature and 7760114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 7761114237Snjlbutton/power/PWRF) to simplify button identification. 7762102550Siwasaki 7763114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 7764114237Snjlany "_THIS_MODULE defined but not used" messages. 7765102550Siwasaki 7766102550SiwasakiCan now shut down the system using "magic sysrq" key. 7767102550Siwasaki 7768102550Siwasaki 7769102550Siwasaki3) iASL Compiler version 2041: 7770102550Siwasaki 7771104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 7772104470Siwasakiconstants were not reported. 7773102550Siwasaki 7774193267SjkimImplemented a fix for the General Register template Address field. 7775126372SnjlThis field was 8 bits when it should be 64. 7776102550Siwasaki 7777193267SjkimFixed a problem where errors/warnings were no longer being emitted 7778126372Snjlwithin the listing output file. 7779102550Siwasaki 7780114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 7781114237Snjlexactly 4 characters, alphanumeric only. 7782102550Siwasaki 7783102550Siwasaki 7784102550Siwasaki 7785102550Siwasaki 7786102550Siwasaki---------------------------------------- 7787102550SiwasakiSummary of changes for this release: 03_08_02 7788102550Siwasaki 7789102550Siwasaki 7790102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 7791102550Siwasaki 7792114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 7793193267Sjkimkeyword could cause an interpreter error due to attempting to read 7794126372Snjlor write beyond the end of the parent Operation Region. 7795102550Siwasaki 7796193267SjkimFixed a problem in the SystemMemory Operation Region handler where 7797126372Snjlan attempt was made to map memory beyond the end of the region. 7798126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 7799126372Snjlerrors on some Linux systems. 7800102550Siwasaki 7801114237SnjlFixed a problem where the interpreter/namespace "search to root" 7802114237Snjlalgorithm was not functioning for some object types. Relaxed the 7803114237Snjlinternal restriction on the search to allow upsearches for all 7804114237Snjlexternal object types as well as most internal types. 7805102550Siwasaki 7806102550Siwasaki 7807102550Siwasaki2) Linux: 7808102550Siwasaki 7809193267SjkimWe now use safe_halt() macro versus individual calls to sti | hlt. 7810102550Siwasaki 7811193267SjkimWriting to the processor limit interface should now work. "echo 1" 7812126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 7813167802Sjkim 7814126372Snjldefault. 7815102550Siwasaki 7816102550Siwasaki 7817102550Siwasaki3) ASL compiler: 7818102550Siwasaki 7819102550SiwasakiFixed segfault on Linux version. 7820102550Siwasaki 7821102550Siwasaki 7822102550Siwasaki---------------------------------------- 7823102550SiwasakiSummary of changes for this release: 02_25_02 7824102550Siwasaki 7825102550Siwasaki1) ACPI CA Core Subsystem: 7826102550Siwasaki 7827102550Siwasaki 7828102550SiwasakiFixed a problem where the GPE bit masks were not initialized 7829102550Siwasakiproperly, causing erratic GPE behavior. 7830102550Siwasaki 7831193267SjkimImplemented limited support for multiple calling conventions. The 7832126372Snjlcode can be generated with either the VPL (variable parameter 7833114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 7834114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 7835114237Snjlwhen generated with FPL. 7836102550Siwasaki 7837102550Siwasaki 7838102550Siwasaki2) Linux 7839102550Siwasaki 7840114237SnjlRe-add some /proc/acpi/event functionality that was lost during 7841114237Snjlthe rewrite 7842102550Siwasaki 7843193267SjkimResolved issue with /proc events for fixed-feature buttons showing 7844126372Snjlup as the system device. 7845102550Siwasaki 7846193267SjkimFixed checks on C2/C3 latencies to be inclusive of maximum values. 7847102550Siwasaki 7848114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 7849102550Siwasaki 7850114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 7851102550Siwasaki 7852104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 7853104470Siwasakihysterisis. 7854102550Siwasaki 7855102550SiwasakiRestructured PRT support. 7856102550Siwasaki 7857102550Siwasaki 7858102550Siwasaki---------------------------------------- 7859102550SiwasakiSummary of changes for this label: 02_14_02 7860102550Siwasaki 7861102550Siwasaki 7862102550Siwasaki1) ACPI CA Core Subsystem: 7863102550Siwasaki 7864114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 7865114237SnjlFADT tables. 7866102550Siwasaki 7867114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 7868193267Sjkimbeen removed. All 64-bit platforms should be migrated to the ACPI 7869193267Sjkim2.0 tables. The actbl71.h header has been removed from the source 7870126372Snjltree. 7871102550Siwasaki 7872114237SnjlAll C macros defined within the subsystem have been prefixed with 7873114237Snjl"ACPI_" to avoid collision with other system include files. 7874102550Siwasaki 7875193267SjkimRemoved the return value for the two AcpiOsPrint interfaces, since 7876126372Snjlit is never used and causes lint warnings for ignoring the return 7877126372Snjlvalue. 7878102550Siwasaki 7879104470SiwasakiAdded error checking to all internal mutex acquire and release 7880104470Siwasakicalls. Although a failure from one of these interfaces is 7881104470Siwasakiprobably a fatal system error, these checks will cause the 7882114237Snjlimmediate abort of the currently executing method or interface. 7883102550Siwasaki 7884114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 7885193267Sjkimfault. This was a side effect of the deployment of the new memory 7886126372Snjlallocation model. 7887102550Siwasaki 7888193267SjkimFixed a couple of problems with the Global Lock support introduced 7889193267Sjkimin the last major build. The "common" (1.0/2.0) internal FACS was 7890126372Snjlbeing overwritten with the FACS signature and clobbering the 7891126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 7892126372Snjlunmapped after construction of the "common" FACS, preventing 7893126372Snjlaccess to the actual Global Lock field within it. The "common" 7894126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 7895126372Snjlis used simply as a global. 7896102550Siwasaki 7897193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7898126372Snjlbelow. These are the code and data sizes for the acpica.lib 7899126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7900126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7901126372Snjlversion of the code includes the debug output trace mechanism and 7902193267Sjkimhas a larger code and data size. Note that these values will vary 7903126372Snjldepending on the efficiency of the compiler and the compiler 7904126372Snjloptions used during generation. 7905102550Siwasaki 7906102550Siwasaki Previous Release (02_07_01) 7907104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 7908104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 7909102550Siwasaki Current Release: 7910104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 7911104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 7912102550Siwasaki 7913102550Siwasaki 7914102550Siwasaki2) Linux 7915102550Siwasaki 7916102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 7917102550Siwasakichanges described above. 7918102550Siwasaki 7919114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 7920114237Snjlproper poll functionality. 7921102550Siwasaki 7922102550SiwasakiFixed and restructured power management (acpi_bus). 7923102550Siwasaki 7924193267SjkimOnly create /proc "view by type" when devices of that class exist. 7925102550Siwasaki 7926104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 7927102550Siwasaki 7928102550SiwasakiImproved thermal zone code. 7929102550Siwasaki 7930102550Siwasaki 7931102550Siwasaki3) ASL Compiler, version X2039: 7932102550Siwasaki 7933114237Snjl 7934114237SnjlImplemented the new compiler restriction on ASL String hex/octal 7935193267Sjkimescapes to non-null, ASCII values. An error results if an invalid 7936126372Snjlvalue is used. (This will require an ACPI 2.0 specification 7937126372Snjlchange.) 7938102550Siwasaki 7939193267SjkimAML object labels that are output to the optional C and ASM source 7940126372Snjlare now prefixed with both the ACPI table signature and table ID 7941126372Snjlto help guarantee uniqueness within a large BIOS project. 7942102550Siwasaki 7943102550Siwasaki 7944102550Siwasaki---------------------------------------- 7945102550SiwasakiSummary of changes for this label: 02_01_02 7946102550Siwasaki 7947102550Siwasaki1) ACPI CA Core Subsystem: 7948102550Siwasaki 7949114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 7950114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 7951114237Snjlother changes for ACPI 2.0 support are complete. With 7952193267Sjkimsimultaneous code and data optimizations throughout the subsystem, 7953126372SnjlACPI 2.0 support has been implemented with almost no additional 7954126372Snjlcost in terms of code and data size. 7955102550Siwasaki 7956114237SnjlImplemented a new mechanism for allocation of return buffers. If 7957114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 7958114237Snjlbe allocated on behalf of the caller. Consolidated all return 7959114237Snjlbuffer validation and allocation to a common procedure. Return 7960193267Sjkimbuffers will be allocated via the primary OSL allocation interface 7961193267Sjkimsince it appears that a separate pool is not needed by most users. 7962126372SnjlIf a separate pool is required for these buffers, the caller can 7963126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 7964102550Siwasaki 7965102550SiwasakiImplemented support for string operands within the DerefOf 7966102550Siwasakioperator. 7967102550Siwasaki 7968114237SnjlRestructured the Hardware and Event managers to be table driven, 7969114237Snjlsimplifying the source code and reducing the amount of generated 7970114237Snjlcode. 7971102550Siwasaki 7972102550SiwasakiSplit the common read/write low-level ACPI register bitfield 7973104470Siwasakiprocedure into a separate read and write, simplifying the code 7974104470Siwasakiconsiderably. 7975102550Siwasaki 7976114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 7977114237Snjlused only a handful of times and didn't have enough critical mass 7978193267Sjkimfor a separate interface. Replaced with a common calloc procedure 7979126372Snjlin the core. 7980102550Siwasaki 7981104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 7982104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 7983114237SnjlReorganized the GPE information and shrunk a large array that was 7984114237Snjloriginally large enough to hold info for all possible GPEs (256) 7985114237Snjlto simply large enough to hold all GPEs up to the largest GPE 7986114237Snjlnumber on the machine. 7987102550Siwasaki 7988114237SnjlFixed a reported problem with resource structure alignment on 64- 7989114237Snjlbit platforms. 7990102550Siwasaki 7991102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 7992102550Siwasakiinterfaces to not require any flags for the common case of 7993102550Siwasakienabling/disabling a GPE. 7994102550Siwasaki 7995104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 7996102550Siwasaki 7997114237SnjlMost TBDs in comments within the source code have been resolved 7998114237Snjland eliminated. 7999102550Siwasaki 8000167802Sjkim 8001102550SiwasakiFixed a problem in the interpreter where a standalone parent 8002102550Siwasakiprefix (^) was not handled correctly in the interpreter and 8003102550Siwasakidebugger. 8004102550Siwasaki 8005102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 8006102550Siwasaki 8007193267SjkimImplemented Field support in the ASL Load operator. This allows a 8008126372Snjltable to be loaded from a named field, in addition to loading a 8009114237Snjltable directly from an Operation Region. 8010102550Siwasaki 8011193267SjkimImplemented timeout and handle support in the external Global Lock 8012126372Snjlinterfaces. 8013102550Siwasaki 8014114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 8015193267Sjkimlonger being generated correctly during the dump of named objects. 8016102550Siwasaki 8017102550SiwasakiModified the AML debugger to give a full display of if/while 8018102550Siwasakipredicates instead of just one AML opcode at a time. (The 8019193267Sjkimpredicate can have several nested ASL statements.) The old method 8020126372Snjlwas confusing during single stepping. 8021102550Siwasaki 8022193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8023126372Snjlbelow. These are the code and data sizes for the acpica.lib 8024114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8025114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8026114237Snjlversion of the code includes the debug output trace mechanism and 8027193267Sjkimhas a larger code and data size. Note that these values will vary 8028126372Snjldepending on the efficiency of the compiler and the compiler 8029114237Snjloptions used during generation. 8030102550Siwasaki 8031102550Siwasaki Previous Release (12_18_01) 8032114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8033114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8034102550Siwasaki Current Release: 8035114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8036114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8037102550Siwasaki 8038102550Siwasaki2) Linux 8039102550Siwasaki 8040104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 8041104470Siwasakidriver) 8042102550Siwasaki 8043102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 8044102550Siwasaki 8045102550SiwasakiNew thermal policy (Thermal driver) 8046102550Siwasaki 8047102550SiwasakiMany updates to /proc 8048102550Siwasaki 8049102550SiwasakiBattery "low" event support (Battery driver) 8050102550Siwasaki 8051104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 8052102550Siwasaki 8053104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 8054102550Siwasaki 8055102550SiwasakiMenuconfig options redesigned 8056102550Siwasaki 8057102550Siwasaki3) ASL Compiler, version X2037: 8058102550Siwasaki 8059193267SjkimImplemented several new output features to simplify integration of 8060126372SnjlAML code into firmware: 1) Output the AML in C source code with 8061193267Sjkimlabels for each named ASL object. The original ASL source code 8062193267Sjkimis interleaved as C comments. 2) Output the AML in ASM source code 8063126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 8064126372Snjlraw hex table form, in either C or ASM. 8065102550Siwasaki 8066102550SiwasakiImplemented support for optional string parameters to the 8067102550SiwasakiLoadTable operator. 8068102550Siwasaki 8069104470SiwasakiCompleted support for embedded escape sequences within string 8070114237Snjlliterals. The compiler now supports all single character escapes 8071114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 8072114237Snjlnull byte into a string literal (via the hex/octal escape) causes 8073114237Snjlthe string to be immediately terminated. A warning is issued. 8074102550Siwasaki 8075104470SiwasakiFixed a problem where incorrect AML was generated for the case 8076104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 8077102550Siwasaki 8078102550Siwasaki) with no trailing name segments. 8079102550Siwasaki 8080102550SiwasakiThe compiler has been successfully generated with a 64-bit C 8081102550Siwasakicompiler. 8082102550Siwasaki 8083102550Siwasaki 8084102550Siwasaki 8085102550Siwasaki 8086102550Siwasaki---------------------------------------- 8087102550SiwasakiSummary of changes for this label: 12_18_01 8088102550Siwasaki 8089102550Siwasaki1) Linux 8090102550Siwasaki 8091114237SnjlEnhanced blacklist with reason and severity fields. Any table's 8092114237Snjlsignature may now be used to identify a blacklisted system. 8093102550Siwasaki 8094114237SnjlCall _PIC control method to inform the firmware which interrupt 8095114237Snjlmodel the OS is using. Turn on any disabled link devices. 8096102550Siwasaki 8097102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 8098102550Siwasaki 8099102550Siwasaki 2) ACPI CA Core Subsystem: 8100102550Siwasaki 8101193267SjkimImplemented ACPI 2.0 semantics for the "Break" operator (Exit from 8102126372Snjlwhile loop) 8103102550Siwasaki 8104102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 8105102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 8106193267Sjkimoperators. All new ACPI 2.0 operators are now implemented in both 8107193267Sjkimthe ASL compiler and the AML interpreter. The only remaining ACPI 8108126372Snjl2.0 task is support for the String data type in the DerefOf 8109193267Sjkimoperator. Fixed a problem with AcquireMutex where the status code 8110126372Snjlwas lost if the caller had to actually wait for the mutex. 8111102550Siwasaki 8112104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 8113102550Siwasaki 8114193267SjkimCompleted implementation of the external Global Lock interfaces -- 8115126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 8116126372SnjlHandler parameters were added. 8117102550Siwasaki 8118102550SiwasakiCompleted another pass at removing warnings and issues when 8119114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 8120114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 8121114237Snjladd and subtract (diff) macros have changed considerably. 8122102550Siwasaki 8123167802Sjkim 8124114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 8125114237Snjl64-bit platforms, 32-bits on all others. This type is used 8126193267Sjkimwherever memory allocation and/or the C sizeof() operator is used, 8127126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 8128126372Snjland AcpiOsCallocate. 8129102550Siwasaki 8130102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 8131102550Siwasaki 8132193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8133126372Snjlbelow. These are the code and data sizes for the acpica.lib 8134114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8135114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8136114237Snjlversion of the code includes the debug output trace mechanism and 8137114237Snjlhas a larger code and data size. Note that these values will vary 8138114237Snjldepending on the efficiency of the compiler and the compiler 8139114237Snjloptions used during generation. 8140102550Siwasaki 8141102550Siwasaki Previous Release (12_05_01) 8142114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8143114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8144102550Siwasaki Current Release: 8145114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8146114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8147102550Siwasaki 8148102550Siwasaki 3) ASL Compiler, version X2034: 8149102550Siwasaki 8150114237SnjlNow checks for (and generates an error if detected) the use of a 8151114237SnjlBreak or Continue statement without an enclosing While statement. 8152102550Siwasaki 8153167802Sjkim 8154102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 8155102550Siwasakicompiler. 8156102550Siwasaki 8157102550Siwasaki ---------------------------------------- 8158102550SiwasakiSummary of changes for this label: 12_05_01 8159102550Siwasaki 8160102550Siwasaki 1) ACPI CA Core Subsystem: 8161102550Siwasaki 8162102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 8163104470Siwasakioperator creates a new copy of an object (and is also used to 8164193267Sjkimbypass the "implicit conversion" mechanism of the Store operator.) 8165102550Siwasaki 8166102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 8167102550Siwasakiimplemented. The change is that performing a SizeOf on a 8168114237Snjlreference object causes an automatic dereference of the object to 8169114237Snjltha actual value before the size is evaluated. This behavior was 8170114237Snjlundefined in ACPI 1.0. 8171102550Siwasaki 8172114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 8173114237Snjlhave been implemented. The interrupt polarity and mode are now 8174114237Snjlindependently set. 8175102550Siwasaki 8176114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 8177114237Snjlappearing in Package objects were not properly converted to 8178114237Snjlintegers when the internal Package was converted to an external 8179114237Snjlobject (via the AcpiEvaluateObject interface.) 8180102550Siwasaki 8181114237SnjlFixed a problem with the namespace object deletion mechanism for 8182114237Snjlobjects created by control methods. There were two parts to this 8183193267Sjkimproblem: 1) Objects created during the initialization phase method 8184193267Sjkimparse were not being deleted, and 2) The object owner ID mechanism 8185126372Snjlto track objects was broken. 8186102550Siwasaki 8187114237SnjlFixed a problem where the use of the ASL Scope operator within a 8188114237Snjlcontrol method would result in an invalid opcode exception. 8189102550Siwasaki 8190114237SnjlFixed a problem introduced in the previous label where the buffer 8191114237Snjllength required for the _PRT structure was not being returned 8192114237Snjlcorrectly. 8193102550Siwasaki 8194193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8195126372Snjlbelow. These are the code and data sizes for the acpica.lib 8196114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8197114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8198114237Snjlversion of the code includes the debug output trace mechanism and 8199193267Sjkimhas a larger code and data size. Note that these values will vary 8200126372Snjldepending on the efficiency of the compiler and the compiler 8201114237Snjloptions used during generation. 8202102550Siwasaki 8203102550Siwasaki Previous Release (11_20_01) 8204114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8205114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8206102550Siwasaki 8207102550Siwasaki Current Release: 8208114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8209114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8210102550Siwasaki 8211102550Siwasaki 2) Linux: 8212102550Siwasaki 8213102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 8214102550Siwasaki 8215104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 8216114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 8217114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 8218114237Snjlentries are treated as if they were static (not yet 8219114237Snjlreconfigurable). Architecture- specific code to use this data is 8220114237Snjlabsent on IA32 but should be available shortly. 8221102550Siwasaki 8222114237SnjlChanged the initialization sequence to start the ACPI interpreter 8223114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 8224114237Snjlin init/main.c. This ordering is required to support PRT and 8225114237Snjlfacilitate other (future) enhancement. A side effect is that the 8226193267SjkimACPI bus driver and certain device drivers can no longer be loaded 8227126372Snjlas modules. 8228102550Siwasaki 8229104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 8230104470SiwasakiRouting support to be included without the ACPI Bus and other 8231104470Siwasakidevice drivers. 8232102550Siwasaki 8233102550Siwasaki 3) ASL Compiler, version X2033: 8234102550Siwasaki 8235102550SiwasakiFixed some issues with the use of the new CopyObject and 8236102550SiwasakiDataTableRegion operators. Both are fully functional. 8237102550Siwasaki 8238102550Siwasaki ---------------------------------------- 8239102550SiwasakiSummary of changes for this label: 11_20_01 8240102550Siwasaki 8241102550Siwasaki 20 November 2001. Summary of changes for this release. 8242102550Siwasaki 8243102550Siwasaki 1) ACPI CA Core Subsystem: 8244102550Siwasaki 8245104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 8246193267SjkimInteger, String, or Buffer to an Index of a Buffer will store only 8247126372Snjlthe least-significant byte of the source to the Indexed buffer 8248126372Snjlbyte. Multiple writes are not performed. 8249102550Siwasaki 8250104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 8251104470Siwasakioperator was not recorded correctly into the field object. 8252102550Siwasaki 8253102550SiwasakiFixed a problem where ASL Event objects were created in a 8254114237Snjlsignalled state. Events are now created in an unsignalled state. 8255102550Siwasaki 8256114237SnjlThe internal object cache is now purged after table loading and 8257114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 8258114237Snjlthe assumption that object use is greatest during the parse phase 8259193267Sjkimof the entire table (versus the run-time use of individual control 8260126372Snjlmethods.) 8261102550Siwasaki 8262102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 8263102550Siwasaki 8264193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8265126372Snjlfeature development with an actual reduction in the library size. 8266126372SnjlCurrent core subsystem library sizes are shown below. These are 8267126372Snjlthe code and data sizes for the acpica.lib produced by the 8268193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8269126372Snjlany ACPI driver or OSPM code. The debug version of the code 8270126372Snjlincludes the debug output trace mechanism and has a larger code 8271126372Snjland data size. Note that these values will vary depending on the 8272126372Snjlefficiency of the compiler and the compiler options used during 8273126372Snjlgeneration. 8274102550Siwasaki 8275102550Siwasaki Previous Release (11_09_01): 8276114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8277114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8278102550Siwasaki 8279102550Siwasaki Current Release: 8280114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8281114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8282102550Siwasaki 8283102550Siwasaki 2) Linux: 8284102550Siwasaki 8285114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 8286114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 8287114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 8288114237Snjlnear future. This functionality replaces 8289114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 8290114237Snjl2.4.15-preX release. To enable this feature you must add 8291114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 8292193267Sjkimfor CONFIG_ACPI_BOOT for more information. An IA-64 release is in 8293126372Snjlthe works... 8294102550Siwasaki 8295114237SnjlRestructured the configuration options to allow boot-time table 8296114237Snjlparsing support without inclusion of the ACPI Interpreter (and 8297114237Snjlother) code. 8298102550Siwasaki 8299193267SjkimNOTE: This release does not include fixes for the reported events, 8300126372Snjlpower-down, and thermal passive cooling issues (coming soon). 8301102550Siwasaki 8302102550Siwasaki 3) ASL Compiler: 8303102550Siwasaki 8304114237SnjlAdded additional typechecking for Fields within restricted access 8305114237SnjlOperation Regions. All fields within EC and CMOS regions must be 8306114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 8307114237Snjldeclared with the BufferAcc access type. 8308102550Siwasaki 8309114237SnjlFixed a problem where the listing file output of control methods 8310114237Snjlno longer interleaved the actual AML code with the ASL source 8311114237Snjlcode. 8312102550Siwasaki 8313102550Siwasaki 8314102550Siwasaki 8315167802Sjkim 8316102550Siwasaki---------------------------------------- 8317102550SiwasakiSummary of changes for this label: 11_09_01 8318102550Siwasaki 8319102550Siwasaki1) ACPI CA Core Subsystem: 8320102550Siwasaki 8321114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 8322193267SjkimBuffer, String, or Integer source operand that is smaller than the 8323126372Snjltarget field. In these cases, the source operand is zero-extended 8324126372Snjlto fill the target field. 8325102550Siwasaki 8326104470SiwasakiFixed a problem where a Field starting bit offset (within the 8327104470Siwasakiparent operation region) was calculated incorrectly if the 8328167802Sjkim 8329104470Siwasakialignment of the field differed from the access width. This 8330114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 8331114237Snjlpossibly other fields that use the "AccessAny" keyword. 8332102550Siwasaki 8333114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 8334114237Snjlstores through method arguments did not operate correctly. 8335102550Siwasaki 8336102550Siwasaki2) Linux: 8337102550Siwasaki 8338102550SiwasakiImplemented boot-time ACPI table parsing support 8339114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 8340114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 8341114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 8342193267Sjkimprocessors, memory, and interrupts during setup_arch(). Note that 8343126372Snjlthis patch does not include the required architecture-specific 8344126372Snjlchanges required to apply this information -- subsequent patches 8345126372Snjlwill be posted for both IA32 and IA64 to achieve this. 8346102550Siwasaki 8347114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 8348114237SnjlMochel. This allows IA32 systems to transition to/from various 8349114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 8350114237Snjldriver model and power-manageable drivers will prevent its 8351114237Snjl(successful) use on most systems. 8352102550Siwasaki 8353114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 8354193267Sjkimsubmenu, unified IA32 and IA64 options, added new "Boot using ACPI 8355126372Snjltables" option, etc. 8356102550Siwasaki 8357114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 8358114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 8359114237Snjltransactions. 8360102550Siwasaki 8361102550Siwasaki ---------------------------------------- 8362102550SiwasakiSummary of changes for this label: 11_02_01 8363102550Siwasaki 8364102550Siwasaki1) ACPI CA Core Subsystem: 8365102550Siwasaki 8366102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 8367102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 8368102550Siwasakiimplemented. 8369102550Siwasaki 8370114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 8371114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 8372193267SjkimPciConfiguration(), Read/Write Memory(), and Read/Write Port() now 8373126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 8374193267Sjkimthe value parameter for the address space handler interface is now 8375193267Sjkiman ACPI_INTEGER. OSL implementations of these interfaces must now 8376126372Snjlhandle the case where the Width parameter is 64. 8377102550Siwasaki 8378104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 8379104470Siwasakidisassembly for IndexFields was not supported correctly. 8380102550Siwasaki 8381102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 8382104470Siwasakisupported. During field access, a check is performed to ensure 8383114237Snjlthat the value written to an Index or Bank register is not out of 8384114237Snjlthe range of the register. The Index (or Bank) register is 8385114237Snjlwritten before each access to the field data. Future support will 8386114237Snjlinclude allowing individual IndexFields to be wider than the 8387114237SnjlDataRegister width. 8388102550Siwasaki 8389114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 8390114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 8391114237Snjla boundary case that occurred when a DWORD field was written to a 8392114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 8393114237Snjlinterpreter to write one datum too many. 8394102550Siwasaki 8395102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 8396114237Snjlstarting bit address of a field was incorrectly calculated if the 8397114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 8398114237SnjlQwordAcc). 8399102550Siwasaki 8400104470SiwasakiFields: Fixed a problem where forward references to individual 8401193267SjkimFieldUnits (individual Field names within a Field definition) were 8402126372Snjlnot resolved during the AML table load. 8403102550Siwasaki 8404104470SiwasakiFields: Fixed a problem where forward references from a Field 8405104470Siwasakidefinition to the parent Operation Region definition were not 8406104470Siwasakiresolved during the AML table load. 8407104470Siwasaki 8408114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 8409114237Snjlduring AML table load. 8410102550Siwasaki 8411193267SjkimAcpi Interfaces: Fixed a problem where the AcpiGetName() interface 8412126372Snjlreturned an incorrect name for the root node. 8413102550Siwasaki 8414193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8415126372Snjlfeature development with an actual reduction in the library size. 8416126372SnjlCurrent core subsystem library sizes are shown below. These are 8417126372Snjlthe code and data sizes for the acpica.lib produced by the 8418193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8419126372Snjlany ACPI driver or OSPM code. The debug version of the code 8420126372Snjlincludes the debug output trace mechanism and has a larger code 8421126372Snjland data size. Note that these values will vary depending on the 8422126372Snjlefficiency of the compiler and the compiler options used during 8423126372Snjlgeneration. 8424102550Siwasaki 8425102550Siwasaki Previous Release (10_18_01): 8426114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8427114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8428102550Siwasaki 8429102550Siwasaki Current Release: 8430114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8431114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8432102550Siwasaki 8433102550Siwasaki 2) Linux: 8434102550Siwasaki 8435102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 8436102550SiwasakiMODULE_LICENSE("GPL") to all modules. 8437102550Siwasaki 8438102550Siwasaki 3) ASL Compiler version X2030: 8439102550Siwasaki 8440104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 8441104470Siwasakiflagged as errors. 8442102550Siwasaki 8443102550Siwasaki 4) Documentation: 8444102550Siwasaki 8445104470SiwasakiProgrammer Reference updated to reflect OSL and address space 8446104470Siwasakihandler interface changes described above. 8447102550Siwasaki 8448102550Siwasaki---------------------------------------- 8449102550SiwasakiSummary of changes for this label: 10_18_01 8450102550Siwasaki 8451102550SiwasakiACPI CA Core Subsystem: 8452102550Siwasaki 8453193267SjkimFixed a problem with the internal object reference count mechanism 8454126372Snjlthat occasionally caused premature object deletion. This resolves 8455126372Snjlall of the outstanding problem reports where an object is deleted 8456193267Sjkimin the middle of an interpreter evaluation. Although this problem 8457126372Snjlonly showed up in rather obscure cases, the solution to the 8458126372Snjlproblem involved an adjustment of all reference counts involving 8459126372Snjlobjects attached to namespace nodes. 8460102550Siwasaki 8461102550SiwasakiFixed a problem with Field support in the interpreter where 8462114237Snjlwriting to an aligned field whose length is an exact multiple (2 8463193267Sjkimor greater) of the field access granularity would cause an attempt 8464126372Snjlto write beyond the end of the field. 8465102550Siwasaki 8466102550SiwasakiThe top level AML opcode execution functions within the 8467102550Siwasakiinterpreter have been renamed with a more meaningful and 8468102550Siwasakiconsistent naming convention. The modules exmonad.c and 8469102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 8470102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 8471102550Siwasaki 8472114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 8473102550Siwasaki 8474114237SnjlFixed a problem where the AML debugger was causing some internal 8475114237Snjlobjects to not be deleted during subsystem termination. 8476102550Siwasaki 8477104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 8478104470Siwasakiwhere the subsystem would fault if the named object to be 8479104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 8480102550Siwasaki 8481102550SiwasakiFixed a problem with IndexFields and BankFields where the 8482114237Snjlsubsystem would fault if the index, data, or bank registers were 8483114237Snjlnot defined in the same scope as the field itself. 8484102550Siwasaki 8485104470SiwasakiAdded printf format string checking for compilers that support 8486104470Siwasakithis feature. Corrected more than 50 instances of issues with 8487104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 8488104470Siwasakithroughout the core subsystem code. 8489102550Siwasaki 8490104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 8491193267Sjkimimplemented in the core - the value "2" since the ACPI 2.0 support 8492126372Snjlis more than 50% implemented. 8493102550Siwasaki 8494114237SnjlEnhanced the output of the AML debugger "dump namespace" command 8495114237Snjlto output in a more human-readable form. 8496102550Siwasaki 8497114237SnjlCurrent core subsystem library code sizes are shown below. These 8498167802Sjkim 8499114237Snjlare the code and data sizes for the acpica.lib produced by the 8500193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8501126372Snjlany ACPI driver or OSPM code. The debug version of the code 8502126372Snjlincludes the full debug trace mechanism -- leading to a much 8503167802Sjkim 8504114237Snjllarger code and data size. Note that these values will vary 8505114237Snjldepending on the efficiency of the compiler and the compiler 8506114237Snjloptions used during generation. 8507102550Siwasaki 8508102550Siwasaki Previous Label (09_20_01): 8509114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 8510114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 8511102550Siwasaki 8512102550Siwasaki This Label: 8513102550Siwasaki 8514114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8515114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8516114237Snjl 8517102550SiwasakiLinux: 8518102550Siwasaki 8519104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 8520104470Siwasakiknown ASL/AML problems. 8521102550Siwasaki 8522193267SjkimEnhanced the /proc interface for the thermal zone driver and added 8523126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 8524193267Sjkimfile now includes threshold/policy information, and allows setting 8525126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 8526193267Sjkimto the 'info' file. Examples: "echo tzp=5 > info" sets the polling 8527126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 8528126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 8529102550Siwasaki 8530104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 8531104470Siwasakiwhen loading the control method battery driver. 8532102550Siwasaki 8533102550Siwasaki ---------------------------------------- 8534102550SiwasakiSummary of changes for this label: 09_20_01 8535102550Siwasaki 8536102550Siwasaki ACPI CA Core Subsystem: 8537102550Siwasaki 8538104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 8539104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 8540114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 8541114237Snjlsleeps.) 8542102550Siwasaki 8543104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 8544104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 8545104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 8546104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 8547102550Siwasaki 8548114237SnjlA local double-precision divide/modulo module has been added to 8549114237Snjlenhance portability to OS kernels where a 64-bit math library is 8550114237Snjlnot available. The new module is "utmath.c". 8551102550Siwasaki 8552104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 8553114237Snjlstack. Originally over 2K, the maximum stack usage is now below 8554114237Snjl2K at 1860 bytes (1.82k) 8555102550Siwasaki 8556114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 8557193267Sjkimroot table pointer was not mapped into a logical address properly. 8558102550Siwasaki 8559193267SjkimFixed a problem where a NULL pointer was being dereferenced in the 8560126372Snjlinterpreter code for the ASL Notify operator. 8561102550Siwasaki 8562102550SiwasakiFixed a problem where the use of the ASL Revision operator 8563114237Snjlreturned an error. This operator now returns the current version 8564114237Snjlof the ACPI CA core subsystem. 8565102550Siwasaki 8566114237SnjlFixed a problem where objects passed as control method parameters 8567114237Snjlto AcpiEvaluateObject were always deleted at method termination. 8568114237SnjlHowever, these objects may end up being stored into the namespace 8569114237Snjlby the called method. The object reference count mechanism was 8570114237Snjlapplied to these objects instead of a force delete. 8571102550Siwasaki 8572114237SnjlFixed a problem where static strings or buffers (contained in the 8573114237SnjlAML code) that are declared as package elements within the ASL 8574114237Snjlcode could cause a fault because the interpreter would attempt to 8575114237Snjldelete them. These objects are now marked with the "static 8576114237Snjlobject" flag to prevent any attempt to delete them. 8577102550Siwasaki 8578114237SnjlImplemented an interpreter optimization to use operands directly 8579114237Snjlfrom the state object instead of extracting the operands to local 8580114237Snjlvariables. This reduces stack use and code size, and improves 8581114237Snjlperformance. 8582102550Siwasaki 8583193267SjkimThe module exxface.c was eliminated as it was an unnecessary extra 8584126372Snjllayer of code. 8585102550Siwasaki 8586114237SnjlCurrent core subsystem library code sizes are shown below. These 8587114237Snjlare the code and data sizes for the acpica.lib produced by the 8588193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8589126372Snjlany ACPI driver or OSPM code. The debug version of the code 8590126372Snjlincludes the full debug trace mechanism -- leading to a much 8591114237Snjllarger code and data size. Note that these values will vary 8592114237Snjldepending on the efficiency of the compiler and the compiler 8593114237Snjloptions used during generation. 8594102550Siwasaki 8595102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 8596114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 8597114237SnjlTotal (Previously 195K) 8598102550Siwasaki 8599102550SiwasakiLinux: 8600102550Siwasaki 8601114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 8602114237SnjlInteger objects are now 64 bits wide 8603102550Siwasaki 8604114237SnjlAll Acpi data types and structures are now in lower case. Only 8605114237SnjlAcpi macros are upper case for differentiation. 8606102550Siwasaki 8607102550Siwasaki Documentation: 8608102550Siwasaki 8609102550SiwasakiChanges to the external interfaces as described above. 8610102550Siwasaki 8611102550Siwasaki ---------------------------------------- 8612102550SiwasakiSummary of changes for this label: 08_31_01 8613102550Siwasaki 8614102550Siwasaki ACPI CA Core Subsystem: 8615102550Siwasaki 8616114237SnjlA bug with interpreter implementation of the ASL Divide operator 8617114237Snjlwas found and fixed. The implicit function return value (not the 8618114237Snjlexplicit store operands) was returning the remainder instead of 8619114237Snjlthe quotient. This was a longstanding bug and it fixes several 8620114237Snjlknown outstanding issues on various platforms. 8621102550Siwasaki 8622104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 8623193267Sjkimbeen further optimized for size. There are 700 invocations of the 8624126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 8625126372Snjlthe debug version of the subsystem significantly. 8626102550Siwasaki 8627114237SnjlA stack trace mechanism has been implemented. The maximum stack 8628193267Sjkimusage is about 2K on 32-bit platforms. The debugger command "stat 8629126372Snjlstack" will display the current maximum stack usage. 8630102550Siwasaki 8631114237SnjlAll public symbols and global variables within the subsystem are 8632114237Snjlnow prefixed with the string "Acpi". This keeps all of the 8633114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 8634114237Snjlwith other kernel subsystems. 8635102550Siwasaki 8636114237SnjlMost of the internal fixed lookup tables have been moved into the 8637114237Snjlcode segment via the const operator. 8638102550Siwasaki 8639104470SiwasakiSeveral enhancements have been made to the interpreter to both 8640104470Siwasakireduce the code size and improve performance. 8641102550Siwasaki 8642114237SnjlCurrent core subsystem library code sizes are shown below. These 8643114237Snjlare the code and data sizes for the acpica.lib produced by the 8644193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8645126372Snjlany ACPI driver or OSPM code. The debug version of the code 8646126372Snjlincludes the full debug trace mechanism which contains over 700 8647126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 8648126372Snjlinvocations, and over 900 function exit macro invocations -- 8649126372Snjlleading to a much larger code and data size. Note that these 8650114237Snjlvalues will vary depending on the efficiency of the compiler and 8651114237Snjlthe compiler options used during generation. 8652102550Siwasaki 8653102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 8654102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 8655102550Siwasaki 8656102550Siwasaki Linux: 8657102550Siwasaki 8658104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 8659102550Siwasaki 8660102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 8661102550Siwasaki 8662102550Siwasaki ASL Compiler, version X2026: 8663102550Siwasaki 8664104470SiwasakiFixed a problem introduced in the previous label where the AML 8665167802Sjkim 8666104470Siwasakicode emitted for package objects produced packages with zero 8667104470Siwasakilength. 8668102550Siwasaki 8669102550Siwasaki ---------------------------------------- 8670102550SiwasakiSummary of changes for this label: 08_16_01 8671102550Siwasaki 8672102550SiwasakiACPI CA Core Subsystem: 8673102550Siwasaki 8674114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 8675114237SnjlAML interpreter (These are already supported by the Intel ASL 8676193267Sjkimcompiler): ToDecimalString, ToHexString, ToString, ToInteger, and 8677126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 8678126372SnjlAML parser, debugger, and disassembler. 8679102550Siwasaki 8680114237SnjlThe internal memory tracking mechanism (leak detection code) has 8681114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 8682114237Snjlblock is no longer allocated for each memory allocation), and now 8683114237Snjlsupports all of the internal object caches. 8684102550Siwasaki 8685114237SnjlThe data structures and code for the internal object caches have 8686114237Snjlbeen coelesced and optimized so that there is a single cache and 8687114237Snjlmemory list data structure and a single group of functions that 8688114237Snjlimplement generic cache management. This has reduced the code 8689114237Snjlsize in both the debug and release versions of the subsystem. 8690102550Siwasaki 8691193267SjkimThe DEBUG_PRINT macro(s) have been optimized for size and replaced 8692126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 8693126372Snjldifferent, because it generates a single call to an internal 8694126372Snjlfunction. This results in a savings of about 90 bytes per 8695193267Sjkiminvocation, resulting in an overall code and data savings of about 8696126372Snjl16% in the debug version of the subsystem. 8697102550Siwasaki 8698102550Siwasaki Linux: 8699102550Siwasaki 8700114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 8701114237Snjlmachines. 8702102550Siwasaki 8703102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 8704102550Siwasaki 8705102550SiwasakiFurther tweaked source code Linuxization. 8706102550Siwasaki 8707102550SiwasakiOther minor fixes. 8708102550Siwasaki 8709102550Siwasaki ASL Compiler: 8710102550Siwasaki 8711114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 8712102550Siwasaki 8713114237SnjlFixed a problem where the optional length parameter for the ACPI 8714114237Snjl2.0 ToString operator. 8715102550Siwasaki 8716114237SnjlFixed multiple extraneous error messages when a syntax error is 8717114237Snjldetected within the declaration line of a control method. 8718102550Siwasaki 8719102550Siwasaki ---------------------------------------- 8720102550SiwasakiSummary of changes for this label: 07_17_01 8721102550Siwasaki 8722102550SiwasakiACPI CA Core Subsystem: 8723102550Siwasaki 8724104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 8725193267SjkimACPI table via the ACPI signature. The interface can be called at 8726126372Snjlany time during kernel initialization, even before the kernel 8727193267Sjkimvirtual memory manager is initialized and paging is enabled. This 8728126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 8729126372Snjlbefore the ACPI CA subsystem is initialized. 8730102550Siwasaki 8731104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 8732104470Siwasakicould be resolved to the incorrect address under the following 8733114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 8734114237Snjlparent operation region is not defined on a DWORD boundary. 8735102550Siwasaki 8736114237SnjlFixed a problem where the interpreter is not being locked during 8737114237Snjlnamespace initialization (during execution of the _INI control 8738114237Snjlmethods), causing an error when an attempt is made to release it 8739114237Snjllater. 8740102550Siwasaki 8741104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 8742114237Snjlongoing throughout the rest of this year. In this label, The Mod 8743114237Snjloperator is implemented. 8744102550Siwasaki 8745102550SiwasakiAdded a new data type to contain full PCI addresses named 8746193267SjkimACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device, 8747126372Snjland Function values. 8748102550Siwasaki 8749102550Siwasaki Linux: 8750102550Siwasaki 8751102550SiwasakiEnhanced the Linux version of the source code to change most 8752102550Siwasakicapitalized ACPI type names to lowercase. For example, all 8753114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 8754114237Snjlresult in a large diff, but the change is strictly cosmetic and 8755114237Snjlaligns the CA code closer to the Linux coding standard. 8756102550Siwasaki 8757102550SiwasakiOSL Interfaces: 8758102550Siwasaki 8759193267SjkimThe interfaces to the PCI configuration space have been changed to 8760193267Sjkimadd the PCI Segment number and to split the single 32-bit combined 8761126372SnjlDeviceFunction field into two 16-bit fields. This was 8762114237Snjlaccomplished by moving the four values that define an address in 8763114237SnjlPCI configuration space (segment, bus, device, and function) to 8764114237Snjlthe new ACPI_PCI_ID structure. 8765102550Siwasaki 8766104470SiwasakiThe changes to the PCI configuration space interfaces led to a 8767104470Siwasakireexamination of the complete set of address space access 8768114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 8769114237Snjlinterfaces have proven difficult to maintain (any small change 8770193267Sjkimmust be propagated across at least 6 interfaces) and do not easily 8771193267Sjkimallow for future expansion to 64 bits if necessary. Also, on some 8772126372Snjlsystems, it would not be appropriate to demultiplex the access 8773126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 8774114237Snjlcorresponding native OS interfaces contain a similar access width 8775114237Snjlparameter. For these reasons, the 18 address space interfaces 8776114237Snjlhave been replaced by these 6 new ones: 8777102550Siwasaki 8778102550SiwasakiAcpiOsReadPciConfiguration 8779102550SiwasakiAcpiOsWritePciConfiguration 8780102550SiwasakiAcpiOsReadMemory 8781102550SiwasakiAcpiOsWriteMemory 8782102550SiwasakiAcpiOsReadPort 8783102550SiwasakiAcpiOsWritePort 8784102550Siwasaki 8785114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 8786114237Snjlto perform the platform and/or OS-specific actions necessary to 8787114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 8788114237Snjlinterface will simply call down to the CA core to perform the low- 8789114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 8790114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 8791167802Sjkim 8792114237Snjlremain OS and platform independent. 8793102550Siwasaki 8794104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 8795114237Snjl"function code and pointer" interface for various miscellaneous 8796114237Snjlsignals and notifications that must be made to the host OS. The 8797114237Snjlfirst such signals are intended to support the ASL Fatal and 8798114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 8799114237Snjlinterface has been obsoleted. 8800102550Siwasaki 8801102550SiwasakiThe definition of the AcpiFormatException interface has been 8802114237Snjlchanged to simplify its use. The caller no longer must supply a 8803114237Snjlbuffer to the call; A pointer to a const string is now returned 8804114237Snjldirectly. This allows the call to be easily used in printf 8805114237Snjlstatements, etc. since the caller does not have to manage a local 8806114237Snjlbuffer. 8807102550Siwasaki 8808114237Snjl 8809102550Siwasaki ASL Compiler, Version X2025: 8810102550Siwasaki 8811114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 8812114237Snjland are fully functional. They will work with all ACPI 1.0 8813193267Sjkiminterpreters, since the operators are simply translated to If/Else 8814126372Snjlpairs. 8815102550Siwasaki 8816104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 8817104470Siwasakiwith 1.0 interpreters, for the same reason. 8818102550Siwasaki 8819114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 8820114237Snjlpackages have a separate opcode, and their size is determined by 8821114237Snjlthe interpreter at run-time. 8822102550Siwasaki 8823193267SjkimDocumentation The ACPI CA Programmer Reference has been updated to 8824126372Snjlreflect the new interfaces and changes to existing interfaces. 8825102550Siwasaki 8826102550Siwasaki ------------------------------------------ 8827102550SiwasakiSummary of changes for this label: 06_15_01 8828102550Siwasaki 8829102550Siwasaki ACPI CA Core Subsystem: 8830102550Siwasaki 8831102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 8832114237Snjlobject would get its byte address inadvertently rounded down to 8833114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 8834102550Siwasaki 8835102550Siwasaki ASL Compiler, version X2024: 8836102550Siwasaki 8837114237SnjlFixed a problem where the Switch() operator would either fault or 8838114237Snjlhang the compiler. Note however, that the AML code for this ACPI 8839114237Snjl2.0 operator is not yet implemented. 8840102550Siwasaki 8841114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 8842114237Snjltimings. 8843102550Siwasaki 8844114237SnjlImplementation of the CreateField operator automatically converts 8845114237Snjla reference to a named field within a resource descriptor from a 8846114237Snjlbyte offset to a bit offset if required. 8847102550Siwasaki 8848102550SiwasakiAdded some missing named fields from the resource descriptor 8849193267Sjkimsupport. These are the names that are automatically created by the 8850126372Snjlcompiler to reference fields within a descriptor. They are only 8851126372Snjlvalid at compile time and are not passed through to the AML 8852114237Snjlinterpreter. 8853102550Siwasaki 8854104470SiwasakiResource descriptor named fields are now typed as Integers and 8855104470Siwasakisubject to compile-time typechecking when used in expressions. 8856102550Siwasaki 8857102550Siwasaki ------------------------------------------ 8858102550SiwasakiSummary of changes for this label: 05_18_01 8859102550Siwasaki 8860102550Siwasaki ACPI CA Core Subsystem: 8861102550Siwasaki 8862114237SnjlFixed a couple of problems in the Field support code where bits 8863193267Sjkimfrom adjacent fields could be returned along with the proper field 8864126372Snjlbits. Restructured the field support code to improve performance, 8865126372Snjlreadability and maintainability. 8866102550Siwasaki 8867114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 8868114237Snjlinto the output, saving hundreds of copies of procedure name 8869114237Snjlstrings within the source, shrinking the memory footprint of the 8870114237Snjldebug version of the core subsystem. 8871102550Siwasaki 8872102550Siwasaki Source Code Structure: 8873102550Siwasaki 8874104470SiwasakiThe source code directory tree was restructured to reflect the 8875114237Snjlcurrent organization of the component architecture. Some files 8876114237Snjland directories have been moved and/or renamed. 8877102550Siwasaki 8878102550Siwasaki Linux: 8879102550Siwasaki 8880102550SiwasakiFixed leaking kacpidpc processes. 8881102550Siwasaki 8882102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 8883102550Siwasakiopened. 8884102550Siwasaki 8885102550Siwasaki ASL Compiler, version X2020: 8886102550Siwasaki 8887114237SnjlMemory allocation performance enhancement - over 24X compile time 8888114237Snjlimprovement on large ASL files. Parse nodes and namestring 8889114237Snjlbuffers are now allocated from a large internal compiler buffer. 8890102550Siwasaki 8891102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 8892102550Siwasakispecified 8893102550Siwasaki 8894193267SjkimThe "-d" debug output option now sends all output to the .DBG file 8895126372Snjlinstead of the console. 8896102550Siwasaki 8897102550Siwasaki"External" second parameter is now optional 8898102550Siwasaki 8899102550Siwasaki"ElseIf" syntax now properly allows the predicate 8900102550Siwasaki 8901102550SiwasakiLast operand to "Load" now recognized as a Target operand 8902102550Siwasaki 8903102550SiwasakiDebug object can now be used anywhere as a normal object. 8904102550Siwasaki 8905102550SiwasakiResourceTemplate now returns an object of type BUFFER 8906102550Siwasaki 8907102550SiwasakiEISAID now returns an object of type INTEGER 8908102550Siwasaki 8909102550Siwasaki"Index" now works with a STRING operand 8910102550Siwasaki 8911102550Siwasaki"LoadTable" now accepts optional parameters 8912102550Siwasaki 8913102550Siwasaki"ToString" length parameter is now optional 8914102550Siwasaki 8915102550Siwasaki"Interrupt (ResourceType," parse error fixed. 8916102550Siwasaki 8917104470Siwasaki"Register" with a user-defined region space parse error fixed 8918102550Siwasaki 8919114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 8920114237Snjlfixed 8921102550Siwasaki 8922102550Siwasaki"Revision" is now an object of type INTEGER. 8923102550Siwasaki 8924102550Siwasaki 8925102550Siwasaki 8926102550Siwasaki------------------------------------------ 8927102550SiwasakiSummary of changes for this label: 05_02_01 8928102550Siwasaki 8929102550SiwasakiLinux: 8930102550Siwasaki 8931102550Siwasaki/proc/acpi/event now blocks properly. 8932102550Siwasaki 8933102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 8934102550Siwasaki/proc/acpi/dsdt. 8935102550Siwasaki 8936102550Siwasaki ACPI CA Core Subsystem: 8937102550Siwasaki 8938193267SjkimFixed a problem introduced in the previous label where some of the 8939126372Snjl"small" resource descriptor types were not recognized. 8940102550Siwasaki 8941193267SjkimImproved error messages for the case where an ASL Field is outside 8942126372Snjlthe range of the parent operation region. 8943102550Siwasaki 8944102550Siwasaki ASL Compiler, version X2018: 8945102550Siwasaki 8946167802Sjkim 8947193267SjkimAdded error detection for ASL Fields that extend beyond the length 8948126372Snjlof the parent operation region (only if the length of the region 8949126372Snjlis known at compile time.) This includes fields that have a 8950126372Snjlminimum access width that is smaller than the parent region, and 8951126372Snjlindividual field units that are partially or entirely beyond the 8952126372Snjlextent of the parent. 8953102550Siwasaki 8954102550Siwasaki 8955102550Siwasaki 8956102550Siwasaki------------------------------------------ 8957102550SiwasakiSummary of changes for this label: 04_27_01 8958102550Siwasaki 8959102550Siwasaki ACPI CA Core Subsystem: 8960102550Siwasaki 8961193267SjkimFixed a problem where the namespace mutex could be released at the 8962126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 8963102550Siwasaki 8964104470SiwasakiAdded optional thread ID output for debug traces, to simplify 8965114237Snjldebugging of multiple threads. Added context switch notification 8966114237Snjlwhen the debug code realizes that a different thread is now 8967114237Snjlexecuting ACPI code. 8968102550Siwasaki 8969114237SnjlSome additional external data types have been prefixed with the 8970114237Snjlstring "ACPI_" for consistency. This may effect existing code. 8971193267SjkimThe data types affected are the external callback typedefs - e.g., 8972167802Sjkim 8973126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 8974102550Siwasaki 8975102550Siwasaki Linux: 8976102550Siwasaki 8977102550SiwasakiFixed an issue with the OSL semaphore implementation where a 8978102550Siwasakithread was waking up with an error from receiving a SIGCHLD 8979102550Siwasakisignal. 8980102550Siwasaki 8981114237SnjlLinux version of ACPI CA now uses the system C library for string 8982114237Snjlmanipulation routines instead of a local implementation. 8983102550Siwasaki 8984102550SiwasakiCleaned up comments and removed TBDs. 8985102550Siwasaki 8986102550Siwasaki ASL Compiler, version X2017: 8987102550Siwasaki 8988102550SiwasakiEnhanced error detection and reporting for all file I/O 8989102550Siwasakioperations. 8990102550Siwasaki 8991102550Siwasaki Documentation: 8992102550Siwasaki 8993102550SiwasakiProgrammer Reference updated to version 1.06. 8994102550Siwasaki 8995102550Siwasaki 8996102550Siwasaki 8997102550Siwasaki------------------------------------------ 8998102550SiwasakiSummary of changes for this label: 04_13_01 8999102550Siwasaki 9000102550Siwasaki ACPI CA Core Subsystem: 9001102550Siwasaki 9002102550SiwasakiRestructured support for BufferFields and RegionFields. 9003104470SiwasakiBankFields support is now fully operational. All known 32-bit 9004114237Snjllimitations on field sizes have been removed. Both BufferFields 9005114237Snjland (Operation) RegionFields are now supported by the same field 9006114237Snjlmanagement code. 9007102550Siwasaki 9008114237SnjlResource support now supports QWORD address and IO resources. The 9009114237Snjl16/32/64 bit address structures and the Extended IRQ structure 9010114237Snjlhave been changed to properly handle Source Resource strings. 9011102550Siwasaki 9012114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 9013193267Sjkimcondition internally and must never be returned by AcpiOsThreadId. 9014126372SnjlThis reserved value was changed from 0 since Unix systems allow a 9015126372Snjlthread ID of 0. 9016102550Siwasaki 9017102550SiwasakiLinux: 9018102550Siwasaki 9019102550SiwasakiDriver code reorganized to enhance portability 9020102550Siwasaki 9021102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 9022102550Siwasaki 9023102550SiwasakiFixed the EC driver to honor _GLK. 9024102550Siwasaki 9025102550SiwasakiASL Compiler, version X2016: 9026102550Siwasaki 9027114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 9028114237Snjladdress space was set to 0, not 0x7f as it should be. 9029102550Siwasaki 9030102550Siwasaki ------------------------------------------ 9031102550SiwasakiSummary of changes for this label: 03_13_01 9032102550Siwasaki 9033102550Siwasaki ACPI CA Core Subsystem: 9034102550Siwasaki 9035104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 9036104470Siwasakipresent. 9037102550Siwasaki 9038193267SjkimNotify handler fix - notifies are deferred until the parent method 9039126372Snjlcompletes execution. This fixes the "mutex already acquired" 9040126372Snjlissue seen occasionally. 9041102550Siwasaki 9042104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 9043114237Snjlfound to cause compatibility problems with existing ASL/AML. The 9044114237Snjlconvert "result-to-target-type" implementation has been removed 9045114237Snjlfor stores to method Args and Locals. Source operand conversion 9046114237Snjlis still fully implemented. Possible changes to ACPI 2.0 9047114237Snjlspecification pending. 9048102550Siwasaki 9049104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 9050104470Siwasakilength. 9051102550Siwasaki 9052102550SiwasakiFix for compiler warnings for 64-bit compiles. 9053102550Siwasaki 9054102550Siwasaki Linux: 9055102550Siwasaki 9056102550Siwasaki/proc output aligned for easier parsing. 9057102550Siwasaki 9058102550SiwasakiRelease-version compile problem fixed. 9059102550Siwasaki 9060104470SiwasakiNew kernel configuration options documented in Configure.help. 9061102550Siwasaki 9062102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 9063102550Siwasakicontext" message. 9064102550Siwasaki 9065102550Siwasaki OSPM: 9066102550Siwasaki 9067102550SiwasakiPower resource driver integrated with bus manager. 9068102550Siwasaki 9069102550SiwasakiFixed kernel fault during active cooling for thermal zones. 9070102550Siwasaki 9071102550SiwasakiSource Code: 9072102550Siwasaki 9073102550SiwasakiThe source code tree has been restructured. 9074102550Siwasaki 9075102550Siwasaki 9076102550Siwasaki 9077102550Siwasaki------------------------------------------ 9078102550SiwasakiSummary of changes for this label: 03_02_01 9079102550Siwasaki 9080102550Siwasaki Linux OS Services Layer (OSL): 9081102550Siwasaki 9082102550SiwasakiMajor revision of all Linux-specific code. 9083102550Siwasaki 9084102550SiwasakiModularized all ACPI-specific drivers. 9085102550Siwasaki 9086102550SiwasakiAdded new thermal zone and power resource drivers. 9087102550Siwasaki 9088114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 9089102550Siwasaki 9090102550SiwasakiNew kernel configuration options. 9091102550Siwasaki 9092102550Siwasaki Linux known issues: 9093102550Siwasaki 9094114237SnjlNew kernel configuration options not documented in Configure.help 9095114237Snjlyet. 9096102550Siwasaki 9097114237Snjl 9098102550SiwasakiModule dependencies not currently implemented. If used, they 9099102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 9100102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 9101102550Siwasaki 9102102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 9103102550Siwasaki 9104102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 9105102550Siwasaki 9106104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 9107104470Siwasakimessage. 9108102550Siwasaki 9109104470SiwasakiSome systems may fail with "execution mutex already acquired" 9110104470Siwasakimessage. 9111102550Siwasaki 9112102550Siwasaki ACPI CA Core Subsystem: 9113102550Siwasaki 9114114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 9115193267Sjkimfor the deadlock detection code. Defined to return a non-zero, 32- 9116126372Snjlbit thread ID for the currently executing thread. May be a non- 9117126372Snjlzero constant integer on single-thread systems. 9118102550Siwasaki 9119193267SjkimImplemented deadlock detection for internal subsystem mutexes. We 9120126372Snjlmay add conditional compilation for this code (debug only) later. 9121102550Siwasaki 9122104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 9123114237Snjlincludes multiple acquires/releases by owner and support for the 9124167802Sjkim 9125114237SnjlMutex SyncLevel parameter. 9126102550Siwasaki 9127102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 9128104470SiwasakiMutexes that have been acquired but not released when a thread 9129114237Snjlexits the interpreter. This forces conformance to the ACPI spec 9130114237Snjl("All mutexes must be released when an invocation exits") and 9131114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 9132114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 9133114237Snjlcontinues to misbehave (which it will). 9134102550Siwasaki 9135104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 9136104470Siwasakisupport. 9137102550Siwasaki 9138104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 9139114237Snjlspec does in fact allow recursive method calls.) The number of 9140114237Snjlrecursive calls is subject to the restrictions imposed by the 9141114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 9142104470Siwasakiparameter. 9143102550Siwasaki 9144102550SiwasakiImplemented support for the SyncLevel parameter for control 9145102550Siwasakimethods (ACPI 2.0 feature) 9146102550Siwasaki 9147114237SnjlFixed a deadlock problem when multiple threads attempted to use 9148114237Snjlthe interpreter. 9149102550Siwasaki 9150102550SiwasakiFixed a problem where the string length of a String package 9151102550Siwasakielement was not always set in a package returned from 9152102550SiwasakiAcpiEvaluateObject. 9153102550Siwasaki 9154114237SnjlFixed a problem where the length of a String package element was 9155114237Snjlnot always included in the length of the overall package returned 9156114237Snjlfrom AcpiEvaluateObject. 9157102550Siwasaki 9158102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 9159102550Siwasakimanager. This manager keeps a list of all outstanding 9160193267Sjkimallocations, and can therefore detect memory leaks and attempts to 9161126372Snjlfree memory blocks more than once. Useful for code such as the 9162114237Snjlpower manager, etc. May not be appropriate for device drivers. 9163114237SnjlPerformance with the debug code enabled is slow. 9164102550Siwasaki 9165102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 9166102550Siwasaki 9167102550Siwasaki ASL Compiler Version X2015: 9168102550Siwasaki 9169102550SiwasakiIntegrated changes to allow the compiler to be generated on 9170102550Siwasakimultiple platforms. 9171102550Siwasaki 9172102550SiwasakiLinux makefile added to generate the compiler on Linux 9173102550Siwasaki 9174102550Siwasaki Source Code: 9175102550Siwasaki 9176102550SiwasakiAll platform-specific headers have been moved to their own 9177102550Siwasakisubdirectory, Include/Platform. 9178102550Siwasaki 9179102550SiwasakiNew source file added, Interpreter/ammutex.c 9180102550Siwasaki 9181102550SiwasakiNew header file, Include/acstruct.h 9182102550Siwasaki 9183102550Siwasaki Documentation: 9184102550Siwasaki 9185114237SnjlThe programmer reference has been updated for the following new 9186114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 9187102550Siwasaki 9188102550Siwasaki ------------------------------------------ 9189102550SiwasakiSummary of changes for this label: 02_08_01 9190102550Siwasaki 9191102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 9192193267Sjkimincorrectly returned if the return resource buffer was larger than 9193126372Snjlthe actual data (in the resource interfaces). 9194102550Siwasaki 9195114237SnjlReferences to named objects within packages are resolved to the 9196167802Sjkim 9197114237Snjlfull pathname string before packages are returned directly (via 9198114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 9199114237Snjlinterfaces. 9200102550Siwasaki 9201102550SiwasakiLinux OS Services Layer (OSL): 9202102550Siwasaki 9203102550SiwasakiImproved /proc battery interface. 9204102550Siwasaki 9205102550Siwasaki 9206104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 9207102550Siwasaki 9208102550SiwasakiASL Compiler Version X2014: 9209102550Siwasaki 9210114237SnjlAll defined method arguments can now be used as local variables, 9211114237Snjlincluding the ones that are not actually passed in as parameters. 9212114237SnjlThe compiler tracks initialization of the arguments and issues an 9213114237Snjlexception if they are used without prior assignment (just like 9214114237Snjllocals). 9215102550Siwasaki 9216193267SjkimThe -o option now specifies a filename prefix that is used for all 9217126372Snjloutput files, including the AML output file. Otherwise, the 9218114237Snjldefault behavior is as follows: 1) the AML goes to the file 9219114237Snjlspecified in the DSDT. 2) all other output files use the input 9220114237Snjlsource filename as the base. 9221102550Siwasaki 9222102550Siwasaki ------------------------------------------ 9223102550SiwasakiSummary of changes for this label: 01_25_01 9224102550Siwasaki 9225114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 9226114237Snjlstore support within the interpreter. This includes support for 9227114237Snjlthe Store operator as well as any ASL operators that include a 9228114237Snjltarget operand. 9229102550Siwasaki 9230102550SiwasakiPartially implemented support for Implicit Result-to-Target 9231114237Snjlconversion. This is when a result object is converted on the fly 9232114237Snjlto the type of an existing target object. Completion of this 9233114237Snjlsupport is pending further analysis of the ACPI specification 9234114237Snjlconcerning this matter. 9235102550Siwasaki 9236114237SnjlCPU-specific code has been removed from the subsystem (hardware 9237114237Snjldirectory). 9238102550Siwasaki 9239102550SiwasakiNew Power Management Timer functions added 9240102550Siwasaki 9241114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 9242114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 9243102550Siwasaki 9244102550SiwasakiFixed C2 and C3 latency calculations. 9245102550Siwasaki 9246102550Siwasaki 9247114237SnjlWe no longer use the compilation date for the version message on 9248193267Sjkiminitialization, but retrieve the version from AcpiGetSystemInfo(). 9249102550Siwasaki 9250102550SiwasakiIncorporated for fix Sony VAIO machines. 9251102550Siwasaki 9252104470SiwasakiDocumentation: The Programmer Reference has been updated and 9253104470Siwasakireformatted. 9254102550Siwasaki 9255102550Siwasaki 9256102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 9257102550Siwasakinumbering and error reporting could get out of sync in the 9258102550Siwasakipresence of multiple include files. 9259102550Siwasaki 9260102550Siwasaki ------------------------------------------ 9261102550SiwasakiSummary of changes for this label: 01_15_01 9262102550Siwasaki 9263102550SiwasakiCore ACPI CA Subsystem: 9264102550Siwasaki 9265114237SnjlImplemented support for type conversions in the execution of the 9266114237SnjlASL Concatenate operator (The second operand is converted to 9267114237Snjlmatch the type of the first operand before concatenation.) 9268102550Siwasaki 9269102550SiwasakiSupport for implicit source operand conversion is partially 9270114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 9271114237SnjlString are freely interchangeable for most ASL operators and are 9272114237Snjlconverted by the interpreter on the fly as required. Implicit 9273114237SnjlTarget operand conversion (where the result is converted to the 9274114237Snjltarget type before storing) is not yet implemented. 9275102550Siwasaki 9276102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 9277102550Siwasaki 9278193267SjkimProblem fixed where a field read on an aligned field could cause a 9279126372Snjlread past the end of the field. 9280102550Siwasaki 9281114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 9282114237Snjldoes not return a value, but the caller expects one. (The ASL 9283114237Snjlcompiler flags this as a warning.) 9284102550Siwasaki 9285102550SiwasakiASL Compiler: 9286102550Siwasaki 9287102550SiwasakiVersion X2011: 9288102550Siwasaki1. Static typechecking of all operands is implemented. This 9289193267Sjkimprevents the use of invalid objects (such as using a Package where 9290126372Snjlan Integer is required) at compile time instead of at interpreter 9291126372Snjlrun-time. 9292114237Snjl2. The ASL source line is printed with ALL errors and warnings. 9293102550Siwasaki3. Bug fix for source EOF without final linefeed. 9294193267Sjkim4. Debug option is split into a parse trace and a namespace trace. 9295102550Siwasaki5. Namespace output option (-n) includes initial values for 9296102550Siwasakiintegers and strings. 9297102550Siwasaki6. Parse-only option added for quick syntax checking. 9298102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 9299102550Siwasaki 9300102550SiwasakiVersion X2012: 9301102550Siwasaki1. Relaxed typechecking to allow interchangeability between 9302114237Snjlstrings, integers, and buffers. These types are now converted by 9303114237Snjlthe interpreter at runtime. 9304114237Snjl2. Compiler reports time taken by each internal subsystem in the 9305114237Snjldebug output file. 9306102550Siwasaki 9307102550Siwasaki 9308102550Siwasaki ------------------------------------------ 9309102550SiwasakiSummary of changes for this label: 12_14_00 9310102550Siwasaki 9311102550SiwasakiASL Compiler: 9312102550Siwasaki 9313104470SiwasakiThis is the first official release of the compiler. Since the 9314104470Siwasakicompiler requires elements of the Core Subsystem, this label 9315104470Siwasakisynchronizes everything. 9316102550Siwasaki 9317102550Siwasaki------------------------------------------ 9318102550SiwasakiSummary of changes for this label: 12_08_00 9319102550Siwasaki 9320102550Siwasaki 9321114237SnjlFixed a problem where named references within the ASL definition 9322114237Snjlof both OperationRegions and CreateXXXFields did not work 9323114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9324114237Snjlinitialization of the region/field. This is similar (but not 9325114237Snjlrelated internally) to the problem that was fixed in the last 9326114237Snjllabel. 9327114237Snjl 9328102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 9329102550Siwasakifunctions ToBCD and FromBCD. 9330102550Siwasaki 9331102550SiwasakiUpdated all legal headers to include "2000" in the copyright 9332102550Siwasakiyears. 9333102550Siwasaki 9334102550Siwasaki ------------------------------------------ 9335102550SiwasakiSummary of changes for this label: 12_01_00 9336102550Siwasaki 9337193267SjkimFixed a problem where method invocations within the ASL definition 9338126372Snjlof both OperationRegions and CreateXXXFields did not work 9339126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9340114237Snjlinitialization of the region/field: 9341102550Siwasaki 9342114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 9343114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 9344114237Snjl(0x3005) 9345102550Siwasaki 9346102550SiwasakiFixed a problem where operators with more than one nested 9347104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 9348114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 9349114237Snjlproblem that has gone unnoticed until now. 9350102550Siwasaki 9351102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 9352102550Siwasaki 9353114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 9354114237Snjlprevious build (The prefix part of a relative path was handled 9355114237Snjlincorrectly). 9356102550Siwasaki 9357114237SnjlFixed a problem where Operation Region initialization failed if 9358114237Snjlthe operation region name was a "namepath" instead of a simple 9359114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 9360102550Siwasaki 9361114237SnjlFixed a problem where an assignment to a local variable via the 9362114237Snjlindirect RefOf mechanism only worked for the first such 9363102550Siwasakiassignment. Subsequent assignments were ignored. 9364102550Siwasaki 9365102550Siwasaki ------------------------------------------ 9366102550SiwasakiSummary of changes for this label: 11_15_00 9367102550Siwasaki 9368193267SjkimACPI 2.0 table support with backwards support for ACPI 1.0 and the 9369193267Sjkim0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables, 9370126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 9371126372Snjlgrammar terms at this time. 9372102550Siwasaki 9373193267SjkimAll ACPI hardware access is via the GAS structures in the ACPI 2.0 9374126372SnjlFADT. 9375102550Siwasaki 9376193267SjkimAll physical memory addresses across all platforms are now 64 bits 9377126372Snjlwide. Logical address width remains dependent on the platform 9378126372Snjl(i.e., "void *"). 9379102550Siwasaki 9380114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 9381102550Siwasaki 9382114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 9383114237Snjl2.0 specification. 9384102550Siwasaki 9385104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 9386104470Siwasakirevision number less than 2 use 32-bit integers only. 9387102550Siwasaki 9388114237SnjlFixed a problem where the evaluation of OpRegion operands did not 9389114237Snjlalways resolve them to numbers properly. 9390102550Siwasaki 9391102550Siwasaki------------------------------------------ 9392102550SiwasakiSummary of changes for this label: 10_20_00 9393102550Siwasaki 9394114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 9395114237SnjlCBN_ OpRegions when the _STA returns 0x8. 9396102550Siwasaki 9397104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 9398104470Siwasakivalues before a package object is returned 9399102550Siwasaki 9400104470SiwasakiFix for method call as predicate to if/while construct causing 9401104470Siwasakiincorrect if/while behavior 9402102550Siwasaki 9403114237SnjlFix for Else block package lengths sometimes calculated wrong (if 9404114237Snjlblock > 63 bytes) 9405102550Siwasaki 9406102550SiwasakiFix for Processor object length field, was always zero 9407102550Siwasaki 9408102550SiwasakiTable load abort if FACP sanity check fails 9409102550Siwasaki 9410102550SiwasakiFix for problem with Scope(name) if name already exists 9411102550Siwasaki 9412102550SiwasakiWarning emitted if a named object referenced cannot be found 9413102550Siwasaki(resolved) during method execution. 9414102550Siwasaki 9415102550Siwasaki 9416102550Siwasaki 9417102550Siwasaki 9418102550Siwasaki 9419102550Siwasaki------------------------------------------ 9420102550SiwasakiSummary of changes for this label: 9_29_00 9421102550Siwasaki 9422114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 9423114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 9424114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 9425114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 9426114237SnjlAcpiLoadTables 9427102550Siwasaki 9428193267SjkimNote: These interface changes require changes to all existing OSDs 9429102550Siwasaki 9430114237SnjlThe PCI_Config default address space handler is always installed 9431114237Snjlat the root namespace object. 9432102550Siwasaki 9433102550Siwasaki------------------------------------------- 9434102550SiwasakiSummary of changes for this label: 09_15_00 9435102550Siwasaki 9436102550SiwasakiThe new initialization architecture is implemented. New 9437114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 9438114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 9439167802Sjkim 9440114237Snjl(Namespace is automatically loaded when a table is loaded) 9441102550Siwasaki 9442193267SjkimThe ACPI_OPERAND_OBJECT has been optimized to shrink its size from 9443126372Snjl52 bytes to 32 bytes. There is usually one of these for every 9444126372Snjlnamespace object, so the memory savings is significant. 9445102550Siwasaki 9446114237SnjlImplemented just-in-time evaluation of the CreateField operators. 9447102550Siwasaki 9448102550SiwasakiBug fixes for IA-64 support have been integrated. 9449102550Siwasaki 9450102550SiwasakiAdditional code review comments have been implemented 9451102550Siwasaki 9452193267SjkimThe so-called "third pass parse" has been replaced by a final walk 9453193267Sjkimthrough the namespace to initialize all operation regions (address 9454126372Snjlspaces) and fields that have not yet been initialized during the 9455126372Snjlexecution of the various _INI and REG methods. 9456102550Siwasaki 9457102550SiwasakiNew file - namespace/nsinit.c 9458102550Siwasaki 9459102550Siwasaki------------------------------------------- 9460102550SiwasakiSummary of changes for this label: 09_01_00 9461102550Siwasaki 9462193267SjkimNamespace manager data structures have been reworked to change the 9463126372Snjlprimary object from a table to a single object. This has 9464193267Sjkimresulted in dynamic memory savings of 3X within the namespace and 9465126372Snjl2X overall in the ACPI CA subsystem. 9466102550Siwasaki 9467102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 9468102550Siwasakiinadvertently left commented out. 9469102550Siwasaki 9470114237SnjlReduced the warning count when generating the source with the GCC 9471114237Snjlcompiler. 9472102550Siwasaki 9473102550SiwasakiRevision numbers added to each module header showing the 9474104470SiwasakiSourceSafe version of the file. Please refer to this version 9475114237Snjlnumber when giving us feedback or comments on individual modules. 9476102550Siwasaki 9477114237SnjlThe main object types within the subsystem have been renamed to 9478114237Snjlclarify their purpose: 9479102550Siwasaki 9480102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 9481102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 9482102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 9483102550Siwasaki 9484114237SnjlNOTE: no changes to the initialization sequence are included in 9485114237Snjlthis label. 9486102550Siwasaki 9487102550Siwasaki------------------------------------------- 9488102550SiwasakiSummary of changes for this label: 08_23_00 9489102550Siwasaki 9490102550SiwasakiFixed problem where TerminateControlMethod was being called 9491102550Siwasakimultiple times per method 9492102550Siwasaki 9493193267SjkimFixed debugger problem where single stepping caused a semaphore to 9494126372Snjlbe oversignalled 9495102550Siwasaki 9496104470SiwasakiImproved performance through additional parse object caching - 9497104470Siwasakiadded ACPI_EXTENDED_OP type 9498102550Siwasaki 9499102550Siwasaki------------------------------------------- 9500102550SiwasakiSummary of changes for this label: 08_10_00 9501102550Siwasaki 9502102550SiwasakiParser/Interpreter integration: Eliminated the creation of 9503102550Siwasakicomplete parse trees for ACPI tables and control methods. 9504114237SnjlInstead, parse subtrees are created and then deleted as soon as 9505193267Sjkimthey are processed (Either entered into the namespace or executed 9506126372Snjlby the interpreter). This reduces the use of dynamic kernel 9507126372Snjlmemory significantly. (about 10X) 9508102550Siwasaki 9509114237SnjlException codes broken into classes and renumbered. Be sure to 9510114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 9511114237Snjlhave to renumber the codes again now that they are split into 9512114237Snjlclasses (environment, programmer, AML code, ACPI table, and 9513114237Snjlinternal). 9514102550Siwasaki 9515104470SiwasakiFixed some additional alignment issues in the Resource Manager 9516104470Siwasakisubcomponent 9517102550Siwasaki 9518114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 9519114237Snjlseveral places where mutexes/semaphores were being unlocked 9520114237Snjlwithout a corresponding lock operation. There are no known 9521114237Snjlsemaphore or mutex "leaks" at this time. 9522102550Siwasaki 9523114237SnjlFixed the case where an ASL Return operator is used to return an 9524114237Snjlunnamed package. 9525102550Siwasaki 9526102550Siwasaki------------------------------------------- 9527102550SiwasakiSummary of changes for this label: 07_28_00 9528102550Siwasaki 9529102550SiwasakiFixed a problem with the way addresses were calculated in 9530114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 9531114237Snjlmanifested itself when a Field was created with WordAccess or 9532193267SjkimDwordAccess, but the field unit defined within the Field was less 9533167802Sjkim 9534126372Snjlthan a Word or Dword. 9535102550Siwasaki 9536102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 9537104470Siwasakioperands off of the operand stack to display information. The 9538114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 9539114237Snjlaccessing an operand stack with two or more operands. 9540102550Siwasaki 9541114237SnjlFixed a problem with the PCI configuration space handlers where 9542114237Snjlcontext was getting confused between accesses. This required a 9543114237Snjlchange to the generic address space handler and address space 9544193267Sjkimsetup definitions. Handlers now get both a global handler context 9545126372Snjl(this is the one passed in by the user when executing 9546114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 9547114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 9548114237Snjl_BBN values associated with a specific region). The generic 9549114237Snjlfunction definitions have changed to the following: 9550102550Siwasaki 9551114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 9552114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 9553104470Siwasaki*HandlerContext, // This used to be void *Context void 9554102550Siwasaki*RegionContext); // This is an additional parameter 9555102550Siwasaki 9556102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 9557102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 9558102550Siwasaki**RegionContext); // This used to be **ReturnContext 9559102550Siwasaki 9560102550Siwasaki------------------------------------------- 9561102550SiwasakiSummary of changes for this label: 07_21_00 9562102550Siwasaki 9563102550SiwasakiMajor file consolidation and rename. All files within the 9564193267Sjkiminterpreter have been renamed as well as most header files. This 9565126372Snjlwas done to prevent collisions with existing files in the host 9566126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 9567126372Snjlquite common. The VC project files have been updated. All 9568114237Snjlmakefiles will require modification. 9569102550Siwasaki 9570114237SnjlThe parser/interpreter integration continues in Phase 5 with the 9571114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 9572114237Snjltwice) for each table; This avoids the construction of a huge 9573114237Snjlparse tree and therefore reduces the amount of dynamic memory 9574114237Snjlrequired by the subsystem. Greater use of the parse object cache 9575114237Snjlmeans that performance is unaffected. 9576102550Siwasaki 9577102550SiwasakiMany comments from the two code reviews have been rolled in. 9578102550Siwasaki 9579102550SiwasakiThe 64-bit alignment support is complete. 9580102550Siwasaki 9581102550Siwasaki------------------------------------------- 9582102550SiwasakiSummary of changes for this label: 06_30_00 9583102550Siwasaki 9584114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 9585114237Snjlwe've added support in the source code for 80 column output 9586114237Snjldevices. The code is now mostly constrained to 80 columns or 9587114237Snjlless to support environments and editors that 1) cannot display 9588114237Snjlor print more than 80 characters on a single line, and 2) cannot 9589114237Snjldisable line wrapping. 9590102550Siwasaki 9591104470SiwasakiA major restructuring of the namespace data structure has been 9592104470Siwasakicompleted. The result is 1) cleaner and more 9593114237Snjlunderstandable/maintainable code, and 2) a significant reduction 9594114237Snjlin the dynamic memory requirement for each named ACPI object 9595114237Snjl(almost half). 9596102550Siwasaki 9597102550Siwasaki------------------------------------------- 9598102550SiwasakiSummary of changes for this label: 06_23_00 9599102550Siwasaki 9600114237SnjlLinux support has been added. In order to obtain approval to get 9601114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 9602114237Snjlquite a few changes to the base subsystem that will affect all 9603114237Snjlusers (all the changes are generic and OS- independent). The 9604114237Snjleffects of these global changes have been somewhat far reaching. 9605114237SnjlFiles have been merged and/or renamed and interfaces have been 9606114237Snjlrenamed. The major changes are described below. 9607102550Siwasaki 9608102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 9609102550Siwasakipollution/confusion within our target kernels. All OSD 9610114237Snjlinterfaces must be modified to match the new naming convention. 9611102550Siwasaki 9612193267SjkimFiles merged across the subsystem. A number of the smaller source 9613126372Snjland header files have been merged to reduce the file count and 9614126372Snjlincrease the density of the existing files. There are too many 9615126372Snjlto list here. In general, makefiles that call out individual 9616126372Snjlfiles will require rebuilding. 9617102550Siwasaki 9618104470SiwasakiInterpreter files renamed. All interpreter files now have the 9619104470Siwasakiprefix am* instead of ie* and is*. 9620102550Siwasaki 9621104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 9622114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 9623114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 9624114237Snjl"external interface" or xface or xf in the filenames.j 9625102550Siwasaki 9626102550Siwasaki 9627114237SnjlAll manifest constants have been forced to upper case (some were 9628193267Sjkimmixed case.) Also, the string "ACPI_" has been prepended to many 9629126372Snjl(not all) of the constants, typedefs, and structs. 9630102550Siwasaki 9631102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 9632102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 9633102550Siwasaki 9634102550SiwasakiAll other globals within the subsystem are now prefixed with 9635102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 9636114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 9637193267Sjkimtwo-letter abbreviation for the subcomponent remains after "Acpi" 9638126372Snjl- for example, CmCallocate became AcpiCmCallocate. 9639102550Siwasaki 9640102550SiwasakiAdded a source code translation/conversion utility. Used to 9641114237Snjlgenerate the Linux source code, it can be modified to generate 9642114237Snjlother types of source as well. Can also be used to cleanup 9643114237Snjlexisting source by removing extraneous spaces and blank lines. 9644114237SnjlFound in tools/acpisrc/* 9645102550Siwasaki 9646102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 9647102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 9648102550Siwasaki 9649114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 9650114237SnjlWhen set to one, this indicates that the caller wants to use the 9651167802Sjkim 9652114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 9653114237Snjlboth types. However, implementers of this call may want to use 9654114237Snjldifferent OS primitives depending on the type of semaphore 9655114237Snjlrequested. For example, some operating systems provide separate 9656167802Sjkim 9657193267Sjkim"mutex" and "semaphore" interfaces - where the mutex interface is 9658126372Snjlmuch faster because it doesn't have all the overhead of a full 9659126372Snjlsemaphore implementation. 9660102550Siwasaki 9661104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 9662114237Snjladdress space can block forever if it is the first access to the 9663114237Snjlspace. 9664102550Siwasaki 9665102550Siwasaki------------------------------------------- 9666102550SiwasakiSummary of changes for this label: 06_02_00 9667102550Siwasaki 9668102550SiwasakiSupport for environments that cannot handle unaligned data 9669114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 9670193267Sjkimhandler technology namely SAL/EFI and the IA-64 Linux kernel) has 9671126372Snjlbeen added (via configurable macros) in these three areas: - 9672114237SnjlTransfer of data from the raw AML byte stream is done via byte 9673193267Sjkimmoves instead of word/dword/qword moves. - External objects are 9674126372Snjlaligned within the user buffer, including package elements (sub- 9675193267Sjkimobjects). - Conversion of name strings to UINT32 Acpi Names is now 9676126372Snjldone byte-wise. 9677102550Siwasaki 9678102550SiwasakiThe Store operator was modified to mimic Microsoft's 9679102550Siwasakiimplementation when storing to a Buffer Field. 9680102550Siwasaki 9681102550SiwasakiAdded a check of the BM_STS bit before entering C3. 9682102550Siwasaki 9683114237SnjlThe methods subdirectory has been obsoleted and removed. A new 9684114237Snjlfile, cmeval.c subsumes the functionality. 9685102550Siwasaki 9686102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 9687102550Siwasakimakefile is under the acpiexec directory. 9688